v0.1.41

* Bump github.com/containers/image/v5 from 5.2.0 to 5.2.1
* Bump gopkg.in/yaml.v2 from 2.2.7 to 2.2.8
* Bump github.com/containers/common from 0.0.7 to 0.1.4
* Remove the reference to openshift/api
* vendor github.com/containers/image/v5@v5.2.0
* Manually update buildah to v1.13.1
* add specific authfile options to copy (and sync) command.
* Bump github.com/containers/buildah from 1.11.6 to 1.12.0
* Add context to --encryption-key / --decryption-key processing failures
* Bump github.com/containers/storage from 1.15.2 to 1.15.3
* Bump github.com/containers/buildah from 1.11.5 to 1.11.6
* remove direct reference on c/image/storage
* Makefile: set GOBIN
* Bump gopkg.in/yaml.v2 from 2.2.2 to 2.2.7
* Bump github.com/containers/storage from 1.15.1 to 1.15.2
* Introduce the sync command
* openshift cluster: remove .docker directory on teardown
* Bump github.com/containers/storage from 1.14.0 to 1.15.1
* document installation via apk on alpine
* Fix typos in doc for image encryption
* Image encryption/decryption support in skopeo
* make vendor-in-container
* Bump github.com/containers/buildah from 1.11.4 to 1.11.5
* Travis: use go v1.13
* Use a Windows Nano Server image instead of Server Core for multi-arch
  testing
* Increase test timeout to 15 minutes
* Run the test-system container without --net=host
* Mount /run/systemd/journal/socket into test-system containers
* Don't unnecessarily filter out vendor from (go list ./...) output
* Use -mod=vendor in (go {list,test,vet})
* Bump github.com/containers/buildah from 1.8.4 to 1.11.4
* Bump github.com/urfave/cli from 1.20.0 to 1.22.1
* skopeo: drop support for ostree
* Don't critically fail on a 403 when listing tags
* Revert "Temporarily work around auth.json location confusion"
* Remove references to atomic
* Remove references to storage.conf
* Dockerfile: use golang-github-cpuguy83-go-md2man
* bump version to v0.1.41-dev
* systemtest: inspect container image different from current platform
  arch

Signed-off-by: Valentin Rothberg <rothberg@redhat.com>

.gitignore

@@ -1,3 +1,6 @@
 *.1
 /layers-*
 /skopeo
+
+# ignore JetBrains IDEs (GoLand) config folder
+.idea

.travis.yml

@@ -8,6 +8,9 @@ matrix:
        - docker
   -  os: osx
 
+go:
+  - 1.13.x
+
 notifications:
   email: false
 

Dockerfile

@@ -1,15 +1,16 @@
 FROM fedora
 
-RUN dnf -y update && dnf install -y make git golang golang-github-cpuguy83-go-md2man \
+RUN dnf -y update && dnf install -y make git golang golang-github-cpuguy83-md2man \
 	# storage deps
 	btrfs-progs-devel \
 	device-mapper-devel \
 	# gpgme bindings deps
 	libassuan-devel gpgme-devel \
-	ostree-devel \
 	gnupg \
 	# OpenShift deps
 	which tar wget hostname util-linux bsdtar socat ethtool device-mapper iptables tree findutils nmap-ncat e2fsprogs xfsprogs lsof docker iproute \
+        bats jq podman \
+	golint \
 	&& dnf clean all
 
 # Install two versions of the registry. The first is an older version that
@@ -43,7 +44,6 @@ RUN set -x \
 ENV GOPATH /usr/share/gocode:/go
 ENV PATH $GOPATH/bin:/usr/share/gocode/bin:$PATH
 RUN go version
-RUN go get golang.org/x/lint/golint
 WORKDIR /go/src/github.com/containers/skopeo
 COPY . /go/src/github.com/containers/skopeo
 

Dockerfile.build

@@ -1,14 +1,13 @@
-FROM ubuntu:17.10
+FROM ubuntu:18.10
 
 RUN apt-get update && apt-get install -y \
     golang \
-    btrfs-tools \
+    libbtrfs-dev \
     git-core \
     libdevmapper-dev \
     libgpgme11-dev \
     go-md2man \
-    libglib2.0-dev \
-    libostree-dev
+    libglib2.0-dev
 
 ENV GOPATH=/
 WORKDIR /src/github.com/containers/skopeo

Makefile

@@ -1,10 +1,10 @@
-.PHONY: all binary build-container docs docs-in-container build-local clean install install-binary install-completions shell test-integration .install.vndr vendor
+.PHONY: all binary build-container docs docs-in-container build-local clean install install-binary install-completions shell test-integration .install.vndr vendor vendor-in-container
 
-export GO15VENDOREXPERIMENT=1
+export GOPROXY=https://proxy.golang.org
 
 ifeq ($(shell uname),Darwin)
 PREFIX ?= ${DESTDIR}/usr/local
-DARWIN_BUILD_TAG=containers_image_ostree_stub
+DARWIN_BUILD_TAG=
 # On macOS, (brew install gpgme) installs it within /usr/local, but /usr/local/include is not in the default search path.
 # Rather than hard-code this directory, use gpgme-config. Sadly that must be done at the top-level user
 # instead of locally in the gpgme subpackage, because cgo supports only pkg-config, not general shell scripts,
@@ -20,17 +20,30 @@ INSTALLDIR=${PREFIX}/bin
 MANINSTALLDIR=${PREFIX}/share/man
 CONTAINERSSYSCONFIGDIR=${DESTDIR}/etc/containers
 REGISTRIESDDIR=${CONTAINERSSYSCONFIGDIR}/registries.d
-SIGSTOREDIR=${DESTDIR}/var/lib/atomic/sigstore
+SIGSTOREDIR=${DESTDIR}/var/lib/containers/sigstore
 BASHINSTALLDIR=${PREFIX}/share/bash-completion/completions
+
 GO ?= go
+GOBIN := $(shell $(GO) env GOBIN)
+ifeq ($(GOBIN),)
+GOBIN := $(GOPATH)/bin
+endif
+
 CONTAINER_RUNTIME := $(shell command -v podman 2> /dev/null || echo docker)
 GOMD2MAN ?= $(shell command -v go-md2man || echo '$(GOBIN)/go-md2man')
 
+# Go module support: set `-mod=vendor` to use the vendored sources.
+# See also hack/make.sh.
+ifeq ($(shell go help mod >/dev/null 2>&1 && echo true), true)
+  GO:=GO111MODULE=on $(GO)
+  MOD_VENDOR=-mod=vendor
+endif
+
 ifeq ($(DEBUG), 1)
   override GOGCFLAGS += -N -l
 endif
 
-ifeq ($(shell go env GOOS), linux)
+ifeq ($(shell $(GO) env GOOS), linux)
   GO_DYN_FLAGS="-buildmode=pie"
 endif
 
@@ -50,15 +63,15 @@ CONTAINER_RUN := $(CONTAINER_CMD) "$(IMAGE)"
 GIT_COMMIT := $(shell git rev-parse HEAD 2> /dev/null || true)
 
 MANPAGES_MD = $(wildcard docs/*.md)
+MANPAGES ?= $(MANPAGES_MD:%.md=%)
 
 BTRFS_BUILD_TAG = $(shell hack/btrfs_tag.sh) $(shell hack/btrfs_installed_tag.sh)
 LIBDM_BUILD_TAG = $(shell hack/libdm_tag.sh)
-OSTREE_BUILD_TAG = $(shell hack/ostree_tag.sh)
-LOCAL_BUILD_TAGS = $(BTRFS_BUILD_TAG) $(LIBDM_BUILD_TAG) $(OSTREE_BUILD_TAG) $(DARWIN_BUILD_TAG)
+LOCAL_BUILD_TAGS = $(BTRFS_BUILD_TAG) $(LIBDM_BUILD_TAG) $(DARWIN_BUILD_TAG)
 BUILDTAGS += $(LOCAL_BUILD_TAGS)
 
 ifeq ($(DISABLE_CGO), 1)
-	override BUILDTAGS = containers_image_ostree_stub exclude_graphdriver_devicemapper exclude_graphdriver_btrfs containers_image_openpgp
+	override BUILDTAGS = exclude_graphdriver_devicemapper exclude_graphdriver_btrfs containers_image_openpgp
 endif
 
 #   make all DEBUG=1
@@ -67,6 +80,19 @@ endif
 #           use source debugging tools like delve.
 all: binary docs-in-container
 
+help:
+	@echo "Usage: make <target>"
+	@echo
+	@echo " * 'install' - Install binaries and documents to system locations"
+	@echo " * 'binary' - Build skopeo with a container"
+	@echo " * 'binary-local' - Build skopeo locally"
+	@echo " * 'test-unit' - Execute unit tests"
+	@echo " * 'test-integration' - Execute integration tests"
+	@echo " * 'validate' - Verify whether there is no conflict and all Go source files have been formatted, linted and vetted"
+	@echo " * 'check' - Including above validate, test-integration and test-unit"
+	@echo " * 'shell' - Run the built image and attach to a shell"
+	@echo " * 'clean' - Clean artifacts"
+
 # Build a container image (skopeobuild) that has everything we need to build.
 # Then do the build and the output (skopeo) should appear in current dir
 binary: cmd/skopeo
@@ -81,18 +107,18 @@ binary-static: cmd/skopeo
 
 # Build w/o using containers
 binary-local:
-	$(GPGME_ENV) $(GO) build ${GO_DYN_FLAGS} -ldflags "-X main.gitCommit=${GIT_COMMIT}" -gcflags "$(GOGCFLAGS)" -tags "$(BUILDTAGS)" -o skopeo ./cmd/skopeo
+	$(GPGME_ENV) $(GO) build $(MOD_VENDOR) ${GO_DYN_FLAGS} -ldflags "-X main.gitCommit=${GIT_COMMIT}" -gcflags "$(GOGCFLAGS)" -tags "$(BUILDTAGS)" -o skopeo ./cmd/skopeo
 
 binary-local-static:
-	$(GPGME_ENV) $(GO) build -ldflags "-extldflags \"-static\" -X main.gitCommit=${GIT_COMMIT}" -gcflags "$(GOGCFLAGS)" -tags "$(BUILDTAGS)" -o skopeo ./cmd/skopeo
+	$(GPGME_ENV) $(GO) build $(MOD_VENDOR) -ldflags "-extldflags \"-static\" -X main.gitCommit=${GIT_COMMIT}" -gcflags "$(GOGCFLAGS)" -tags "$(BUILDTAGS)" -o skopeo ./cmd/skopeo
 
 build-container:
 	${CONTAINER_RUNTIME} build ${BUILD_ARGS} -t "$(IMAGE)" .
 
-docs/%.1: docs/%.1.md
+$(MANPAGES): %: %.md
 	@sed -e 's/\((skopeo.*\.md)\)//' -e 's/\[\(skopeo.*\)\]/\1/' $<  | $(GOMD2MAN) -in /dev/stdin -out $@
 
-docs: $(MANPAGES_MD:%.md=%)
+docs: $(MANPAGES)
 
 docs-in-container:
 	${CONTAINER_RUNTIME} build ${BUILD_ARGS} -f Dockerfile.build -t skopeobuildimage .
@@ -113,9 +139,9 @@ install-binary: ./skopeo
 	install -d -m 755 ${INSTALLDIR}
 	install -m 755 skopeo ${INSTALLDIR}/skopeo
 
-install-docs: docs/skopeo.1
+install-docs: docs
 	install -d -m 755 ${MANINSTALLDIR}/man1
-	install -m 644 docs/skopeo.1 ${MANINSTALLDIR}/man1/skopeo.1
+	install -m 644 docs/*.1 ${MANINSTALLDIR}/man1/
 
 install-completions:
 	install -m 755 -d ${BASHINSTALLDIR}
@@ -124,14 +150,25 @@ install-completions:
 shell: build-container
 	$(CONTAINER_RUN) bash
 
-check: validate test-unit test-integration
+check: validate test-unit test-integration test-system
 
 # The tests can run out of entropy and block in containers, so replace /dev/random.
 test-integration: build-container
 	$(CONTAINER_RUN) bash -c 'rm -f /dev/random; ln -sf /dev/urandom /dev/random; SKOPEO_CONTAINER_TESTS=1 BUILDTAGS="$(BUILDTAGS)" hack/make.sh test-integration'
 
+# complicated set of options needed to run podman-in-podman
+test-system: build-container
+	DTEMP=$(shell mktemp -d --tmpdir=/var/tmp podman-tmp.XXXXXX); \
+	$(CONTAINER_CMD) --privileged \
+	    -v $$DTEMP:/var/lib/containers:Z -v /run/systemd/journal/socket:/run/systemd/journal/socket \
+            "$(IMAGE)" \
+            bash -c 'BUILDTAGS="$(BUILDTAGS)" hack/make.sh test-system'; \
+	rc=$$?; \
+	$(RM) -rf $$DTEMP; \
+	exit $$rc
+
 test-unit: build-container
-	# Just call (make test unit-local) here instead of worrying about environment differences, e.g. GO15VENDOREXPERIMENT.
+	# Just call (make test unit-local) here instead of worrying about environment differences
 	$(CONTAINER_RUN) make test-unit-local BUILDTAGS='$(BUILDTAGS)'
 
 validate: build-container
@@ -144,11 +181,13 @@ validate-local:
 	hack/make.sh validate-git-marks validate-gofmt validate-lint validate-vet
 
 test-unit-local:
-	$(GPGME_ENV) $(GO) test -tags "$(BUILDTAGS)" $$($(GO) list -tags "$(BUILDTAGS)" -e ./... | grep -v '^github\.com/containers/skopeo/\(integration\|vendor/.*\)$$')
+	$(GPGME_ENV) $(GO) test $(MOD_VENDOR) -tags "$(BUILDTAGS)" $$($(GO) list $(MOD_VENDOR) -tags "$(BUILDTAGS)" -e ./... | grep -v '^github\.com/containers/skopeo/\(integration\|vendor/.*\)$$')
 
-.install.vndr:
-	$(GO) get -u github.com/LK4D4/vndr
+vendor:
+	export GO111MODULE=on \
+		$(GO) mod tidy && \
+		$(GO) mod vendor && \
+		$(GO) mod verify
 
-vendor: vendor.conf .install.vndr
-	$(GOPATH)/bin/vndr \
-		-whitelist '^github.com/containers/image/docs/.*'
+vendor-in-container:
+	podman run --privileged --rm --env HOME=/root -v `pwd`:/src -w /src docker.io/library/golang:1.13 make vendor

README.md

@@ -37,9 +37,6 @@ Skopeo works with API V2 registries such as Docker registries, the Atomic regist
  * oci:path:tag
          An image tag in a directory compliant with "Open Container Image Layout Specification" at path.
 
- * ostree:image[@/absolute/repo/path]
-         An image in local OSTree repository.  /absolute/repo/path defaults to /ostree/repo.
-
 Inspecting a repository
 -
 `skopeo` is able to _inspect_ a repository on a Docker registry and fetch images layers.
@@ -156,10 +153,19 @@ Obtaining skopeo
 ```sh
 $ sudo dnf install skopeo
 ```
+for openSUSE:
+```sh
+$ sudo zypper install skopeo
+```
+on alpine: 
+```sh
+$ sudo apk add skopeo
+```
+
 
 Otherwise, read on for building and installing it from source:
 
-To build the `skopeo` binary you need at least Go 1.5 because it uses the latest `GO15VENDOREXPERIMENT` flag.
+To build the `skopeo` binary you need at least Go 1.9.
 
 There are two ways to build skopeo: in a container, or locally without a container.  Choose the one which better matches your needs and environment.
 
@@ -171,9 +177,17 @@ Building without a container requires a bit more manual work and setup in your e
 
 Install the necessary dependencies:
 ```sh
-Fedora$ sudo dnf install gpgme-devel libassuan-devel btrfs-progs-devel device-mapper-devel ostree-devel
-Ubuntu$ sudo apt install libgpgme-dev libassuan-dev btrfs-progs libdevmapper-dev libostree-dev
-macOS$ brew install gpgme
+# Fedora:
+sudo dnf install gpgme-devel libassuan-devel btrfs-progs-devel device-mapper-devel
+
+# Ubuntu (`libbtrfs-dev` requires Ubuntu 18.10 and above):
+sudo apt install libgpgme-dev libassuan-dev libbtrfs-dev libdevmapper-dev
+
+# macOS:
+brew install gpgme
+
+# openSUSE
+sudo zypper install libgpgme-devel device-mapper-devel libbtrfs-devel glib2-devel
 ```
 
 Make sure to clone this repository in your `GOPATH` - otherwise compilation fails.
@@ -192,7 +206,7 @@ Building in a container is simpler, but more restrictive:
 $ make binary # Or (make all) to also build documentation, see below.
 ```
 
-To build a pure-Go static binary (disables ostree, devicemapper, btrfs, and gpgme):
+To build a pure-Go static binary (disables devicemapper, btrfs, and gpgme):
 
 ```sh
 $ make binary-static DISABLE_CGO=1

cmd/skopeo/copy.go

@@ -6,11 +6,14 @@ import (
 	"io"
 	"strings"
 
-	"github.com/containers/image/copy"
-	"github.com/containers/image/docker/reference"
-	"github.com/containers/image/manifest"
-	"github.com/containers/image/transports"
-	"github.com/containers/image/transports/alltransports"
+	"github.com/containers/image/v5/copy"
+	"github.com/containers/image/v5/docker/reference"
+	"github.com/containers/image/v5/manifest"
+	"github.com/containers/image/v5/transports"
+	"github.com/containers/image/v5/transports/alltransports"
+
+	encconfig "github.com/containers/ocicrypt/config"
+	enchelpers "github.com/containers/ocicrypt/helpers"
 	imgspecv1 "github.com/opencontainers/image-spec/specs-go/v1"
 	"github.com/urfave/cli"
 )
@@ -24,7 +27,9 @@ type copyOptions struct {
 	signByFingerprint string          // Sign the image using a GPG key with the specified fingerprint
 	format            optionalString  // Force conversion of the image to a specified format
 	quiet             bool            // Suppress output information when copying images
-
+	all               bool            // Copy all of the images if the source is a list
+	encryptionKeys    cli.StringSlice // Keys needed to encrypt the image
+	decryptionKeys    cli.StringSlice // Keys needed to decrypt the image
 }
 
 func copyCmd(global *globalOptions) cli.Command {
@@ -62,6 +67,11 @@ func copyCmd(global *globalOptions) cli.Command {
 				Usage:       "Suppress output information when copying images",
 				Destination: &opts.quiet,
 			},
+			cli.BoolFlag{
+				Name:        "all, a",
+				Usage:       "Copy all images if SOURCE-IMAGE is a list",
+				Destination: &opts.all,
+			},
 			cli.BoolFlag{
 				Name:        "remove-signatures",
 				Usage:       "Do not copy signatures from SOURCE-IMAGE",
@@ -77,6 +87,16 @@ func copyCmd(global *globalOptions) cli.Command {
 				Usage: "`MANIFEST TYPE` (oci, v2s1, or v2s2) to use when saving image to directory using the 'dir:' transport (default is manifest type of source)",
 				Value: newOptionalStringValue(&opts.format),
 			},
+			cli.StringSliceFlag{
+				Name:  "encryption-key",
+				Usage: "*Experimental* key with the encryption protocol to use needed to encrypt the image (e.g. jwe:/path/to/key.pem)",
+				Value: &opts.encryptionKeys,
+			},
+			cli.StringSliceFlag{
+				Name:  "decryption-key",
+				Usage: "*Experimental* key needed to decrypt the image",
+				Value: &opts.decryptionKeys,
+			},
 		}, sharedFlags...), srcFlags...), destFlags...),
 	}
 }
@@ -85,6 +105,11 @@ func (opts *copyOptions) run(args []string, stdout io.Writer) error {
 	if len(args) != 2 {
 		return errorShouldDisplayUsage{errors.New("Exactly two arguments expected")}
 	}
+	imageNames := args
+
+	if err := reexecIfNecessaryForImages(imageNames...); err != nil {
+		return err
+	}
 
 	policyContext, err := opts.global.getPolicyContext()
 	if err != nil {
@@ -92,13 +117,13 @@ func (opts *copyOptions) run(args []string, stdout io.Writer) error {
 	}
 	defer policyContext.Destroy()
 
-	srcRef, err := alltransports.ParseImageName(args[0])
+	srcRef, err := alltransports.ParseImageName(imageNames[0])
 	if err != nil {
-		return fmt.Errorf("Invalid source name %s: %v", args[0], err)
+		return fmt.Errorf("Invalid source name %s: %v", imageNames[0], err)
 	}
-	destRef, err := alltransports.ParseImageName(args[1])
+	destRef, err := alltransports.ParseImageName(imageNames[1])
 	if err != nil {
-		return fmt.Errorf("Invalid destination name %s: %v", args[1], err)
+		return fmt.Errorf("Invalid destination name %s: %v", imageNames[1], err)
 	}
 
 	sourceCtx, err := opts.srcImage.newSystemContext()
@@ -142,6 +167,42 @@ func (opts *copyOptions) run(args []string, stdout io.Writer) error {
 	if opts.quiet {
 		stdout = nil
 	}
+	imageListSelection := copy.CopySystemImage
+	if opts.all {
+		imageListSelection = copy.CopyAllImages
+	}
+
+	if len(opts.encryptionKeys.Value()) > 0 && len(opts.decryptionKeys.Value()) > 0 {
+		return fmt.Errorf("--encryption-key and --decryption-key cannot be specified together")
+	}
+
+	var encLayers *[]int
+	var encConfig *encconfig.EncryptConfig
+	var decConfig *encconfig.DecryptConfig
+
+	if len(opts.encryptionKeys.Value()) > 0 {
+		// encryption
+		encLayers = &[]int{}
+		encryptionKeys := opts.encryptionKeys.Value()
+		ecc, err := enchelpers.CreateCryptoConfig(encryptionKeys, []string{})
+		if err != nil {
+			return fmt.Errorf("Invalid encryption keys: %v", err)
+		}
+		cc := encconfig.CombineCryptoConfigs([]encconfig.CryptoConfig{ecc})
+		encConfig = cc.EncryptConfig
+	}
+
+	if len(opts.decryptionKeys.Value()) > 0 {
+		// decryption
+		decryptionKeys := opts.decryptionKeys.Value()
+		dcc, err := enchelpers.CreateCryptoConfig([]string{}, decryptionKeys)
+		if err != nil {
+			return fmt.Errorf("Invalid decryption keys: %v", err)
+		}
+		cc := encconfig.CombineCryptoConfigs([]encconfig.CryptoConfig{dcc})
+		decConfig = cc.DecryptConfig
+	}
+
 	_, err = copy.Image(ctx, policyContext, destRef, srcRef, &copy.Options{
 		RemoveSignatures:      opts.removeSignatures,
 		SignBy:                opts.signByFingerprint,
@@ -149,6 +210,10 @@ func (opts *copyOptions) run(args []string, stdout io.Writer) error {
 		SourceCtx:             sourceCtx,
 		DestinationCtx:        destinationCtx,
 		ForceManifestMIMEType: manifestType,
+		ImageListSelection:    imageListSelection,
+		OciDecryptConfig:      decConfig,
+		OciEncryptLayers:      encLayers,
+		OciEncryptConfig:      encConfig,
 	})
 	return err
 }

cmd/skopeo/delete.go

@@ -6,8 +6,8 @@ import (
 	"io"
 	"strings"
 
-	"github.com/containers/image/transports"
-	"github.com/containers/image/transports/alltransports"
+	"github.com/containers/image/v5/transports"
+	"github.com/containers/image/v5/transports/alltransports"
 	"github.com/urfave/cli"
 )
 
@@ -44,10 +44,15 @@ func (opts *deleteOptions) run(args []string, stdout io.Writer) error {
 	if len(args) != 1 {
 		return errors.New("Usage: delete imageReference")
 	}
+	imageName := args[0]
 
-	ref, err := alltransports.ParseImageName(args[0])
+	if err := reexecIfNecessaryForImages(imageName); err != nil {
+		return err
+	}
+
+	ref, err := alltransports.ParseImageName(imageName)
 	if err != nil {
-		return fmt.Errorf("Invalid source name %s: %v", args[0], err)
+		return fmt.Errorf("Invalid source name %s: %v", imageName, err)
 	}
 
 	sys, err := opts.image.newSystemContext()

cmd/skopeo/flag.go

@@ -73,3 +73,37 @@ func (ob *optionalStringValue) String() string {
 	}
 	return ob.value
 }
+
+// optionalInt is a int with a separate presence flag.
+type optionalInt struct {
+	present bool
+	value   int
+}
+
+// optionalInt is a cli.Generic == flag.Value implementation equivalent to
+// the one underlying flag.Int, except that it records whether the flag has been set.
+// This is distinct from optionalInt to (pretend to) force callers to use
+// newoptionalIntValue
+type optionalIntValue optionalInt
+
+func newOptionalIntValue(p *optionalInt) cli.Generic {
+	p.present = false
+	return (*optionalIntValue)(p)
+}
+
+func (ob *optionalIntValue) Set(s string) error {
+	v, err := strconv.ParseInt(s, 0, strconv.IntSize)
+	if err != nil {
+		return err
+	}
+	ob.value = int(v)
+	ob.present = true
+	return nil
+}
+
+func (ob *optionalIntValue) String() string {
+	if !ob.present {
+		return "" // If the value is not present, just return an empty string, any other value wouldn't make sense.
+	}
+	return strconv.Itoa(int(ob.value))
+}

cmd/skopeo/inspect.go

@@ -7,10 +7,11 @@ import (
 	"strings"
 	"time"
 
-	"github.com/containers/image/docker"
-	"github.com/containers/image/manifest"
-	"github.com/containers/image/transports"
-	"github.com/opencontainers/go-digest"
+	"github.com/containers/image/v5/docker"
+	"github.com/containers/image/v5/image"
+	"github.com/containers/image/v5/manifest"
+	"github.com/containers/image/v5/transports"
+	digest "github.com/opencontainers/go-digest"
 	"github.com/pkg/errors"
 	"github.com/sirupsen/logrus"
 	"github.com/urfave/cli"
@@ -28,12 +29,14 @@ type inspectOutput struct {
 	Architecture  string
 	Os            string
 	Layers        []string
+	Env           []string
 }
 
 type inspectOptions struct {
 	global *globalOptions
 	image  *imageOptions
 	raw    bool // Output the raw manifest instead of parsing information about the image
+	config bool // Output the raw config blob instead of parsing information about the image
 }
 
 func inspectCmd(global *globalOptions) cli.Command {
@@ -58,9 +61,14 @@ func inspectCmd(global *globalOptions) cli.Command {
 		Flags: append(append([]cli.Flag{
 			cli.BoolFlag{
 				Name:        "raw",
-				Usage:       "output raw manifest",
+				Usage:       "output raw manifest or configuration",
 				Destination: &opts.raw,
 			},
+			cli.BoolFlag{
+				Name:        "config",
+				Usage:       "output configuration",
+				Destination: &opts.config,
+			},
 		}, sharedFlags...), imageFlags...),
 		Action: commandAction(opts.run),
 	}
@@ -73,28 +81,68 @@ func (opts *inspectOptions) run(args []string, stdout io.Writer) (retErr error)
 	if len(args) != 1 {
 		return errors.New("Exactly one argument expected")
 	}
-	img, err := parseImage(ctx, opts.image, args[0])
+	imageName := args[0]
+
+	if err := reexecIfNecessaryForImages(imageName); err != nil {
+		return err
+	}
+
+	sys, err := opts.image.newSystemContext()
 	if err != nil {
 		return err
 	}
 
+	src, err := parseImageSource(ctx, opts.image, imageName)
+	if err != nil {
+		return fmt.Errorf("Error parsing image name %q: %v", imageName, err)
+	}
+
 	defer func() {
-		if err := img.Close(); err != nil {
+		if err := src.Close(); err != nil {
 			retErr = errors.Wrapf(retErr, fmt.Sprintf("(could not close image: %v) ", err))
 		}
 	}()
 
-	rawManifest, _, err := img.Manifest(ctx)
+	rawManifest, _, err := src.GetManifest(ctx, nil)
 	if err != nil {
-		return err
+		return fmt.Errorf("Error retrieving manifest for image: %v", err)
 	}
-	if opts.raw {
+
+	if opts.raw && !opts.config {
 		_, err := stdout.Write(rawManifest)
 		if err != nil {
 			return fmt.Errorf("Error writing manifest to standard output: %v", err)
 		}
 		return nil
 	}
+
+	img, err := image.FromUnparsedImage(ctx, sys, image.UnparsedInstance(src, nil))
+	if err != nil {
+		return fmt.Errorf("Error parsing manifest for image: %v", err)
+	}
+
+	if opts.config && opts.raw {
+		configBlob, err := img.ConfigBlob(ctx)
+		if err != nil {
+			return fmt.Errorf("Error reading configuration blob: %v", err)
+		}
+		_, err = stdout.Write(configBlob)
+		if err != nil {
+			return fmt.Errorf("Error writing configuration blob to standard output: %v", err)
+		}
+		return nil
+	} else if opts.config {
+		config, err := img.OCIConfig(ctx)
+		if err != nil {
+			return fmt.Errorf("Error reading OCI-formatted configuration data: %v", err)
+		}
+		err = json.NewEncoder(stdout).Encode(config)
+		if err != nil {
+			return fmt.Errorf("Error writing OCI-formatted configuration data to standard output: %v", err)
+		}
+		return nil
+	}
+
 	imgInspect, err := img.Inspect(ctx)
 	if err != nil {
 		return err
@@ -110,6 +158,7 @@ func (opts *inspectOptions) run(args []string, stdout io.Writer) (retErr error)
 		Architecture:  imgInspect.Architecture,
 		Os:            imgInspect.Os,
 		Layers:        imgInspect.Layers,
+		Env:           imgInspect.Env,
 	}
 	outputData.Digest, err = manifest.Digest(rawManifest)
 	if err != nil {
@@ -128,7 +177,9 @@ func (opts *inspectOptions) run(args []string, stdout io.Writer) (retErr error)
 			// some registries may decide to block the "list all tags" endpoint
 			// gracefully allow the inspect to continue in this case. Currently
 			// the IBM Bluemix container registry has this restriction.
-			if !strings.Contains(err.Error(), "401") {
+			// In addition, AWS ECR rejects it with 403 (Forbidden) if the "ecr:ListImages"
+			// action is not allowed.
+			if !strings.Contains(err.Error(), "401") && !strings.Contains(err.Error(), "403") {
 				return fmt.Errorf("Error determining repository tags: %v", err)
 			}
 			logrus.Warnf("Registry disallows tag list retrieval; skipping")

cmd/skopeo/layers.go

@@ -7,10 +7,10 @@ import (
 	"os"
 	"strings"
 
-	"github.com/containers/image/directory"
-	"github.com/containers/image/image"
-	"github.com/containers/image/pkg/blobinfocache"
-	"github.com/containers/image/types"
+	"github.com/containers/image/v5/directory"
+	"github.com/containers/image/v5/image"
+	"github.com/containers/image/v5/pkg/blobinfocache"
+	"github.com/containers/image/v5/types"
 	"github.com/opencontainers/go-digest"
 	"github.com/pkg/errors"
 	"github.com/urfave/cli"
@@ -43,6 +43,11 @@ func (opts *layersOptions) run(args []string, stdout io.Writer) (retErr error) {
 	if len(args) == 0 {
 		return errors.New("Usage: layers imageReference [layer...]")
 	}
+	imageName := args[0]
+
+	if err := reexecIfNecessaryForImages(imageName); err != nil {
+		return err
+	}
 
 	ctx, cancel := opts.global.commandTimeoutContext()
 	defer cancel()
@@ -52,7 +57,7 @@ func (opts *layersOptions) run(args []string, stdout io.Writer) (retErr error) {
 		return err
 	}
 	cache := blobinfocache.DefaultCache(sys)
-	rawSource, err := parseImageSource(ctx, opts.image, args[0])
+	rawSource, err := parseImageSource(ctx, opts.image, imageName)
 	if err != nil {
 		return err
 	}
@@ -137,9 +142,9 @@ func (opts *layersOptions) run(args []string, stdout io.Writer) (retErr error) {
 	if err != nil {
 		return err
 	}
-	if err := dest.PutManifest(ctx, manifest); err != nil {
+	if err := dest.PutManifest(ctx, manifest, nil); err != nil {
 		return err
 	}
 
-	return dest.Commit(ctx)
+	return dest.Commit(ctx, image.UnparsedInstance(rawSource, nil))
 }

cmd/skopeo/main.go

@@ -6,7 +6,7 @@ import (
 	"os"
 	"time"
 
-	"github.com/containers/image/signature"
+	"github.com/containers/image/v5/signature"
 	"github.com/containers/skopeo/version"
 	"github.com/containers/storage/pkg/reexec"
 	"github.com/sirupsen/logrus"
@@ -18,14 +18,15 @@ import (
 var gitCommit = ""
 
 type globalOptions struct {
-	debug             bool          // Enable debug output
-	tlsVerify         optionalBool  // Require HTTPS and verify certificates (for docker: and docker-daemon:)
-	policyPath        string        // Path to a signature verification policy file
-	insecurePolicy    bool          // Use an "allow everything" signature verification policy
-	registriesDirPath string        // Path to a "registries.d" registry configuratio directory
-	overrideArch      string        // Architecture to use for choosing images, instead of the runtime one
-	overrideOS        string        // OS to use for choosing images, instead of the runtime one
-	commandTimeout    time.Duration // Timeout for the command execution
+	debug              bool          // Enable debug output
+	tlsVerify          optionalBool  // Require HTTPS and verify certificates (for docker: and docker-daemon:)
+	policyPath         string        // Path to a signature verification policy file
+	insecurePolicy     bool          // Use an "allow everything" signature verification policy
+	registriesDirPath  string        // Path to a "registries.d" registry configuration directory
+	overrideArch       string        // Architecture to use for choosing images, instead of the runtime one
+	overrideOS         string        // OS to use for choosing images, instead of the runtime one
+	commandTimeout     time.Duration // Timeout for the command execution
+	registriesConfPath string        // Path to the "registries.conf" file
 }
 
 // createApp returns a cli.App, and the underlying globalOptions object, to be run or tested.
@@ -83,6 +84,12 @@ func createApp() (*cli.App, *globalOptions) {
 			Usage:       "timeout for the command execution",
 			Destination: &opts.commandTimeout,
 		},
+		cli.StringFlag{
+			Name:        "registries-conf",
+			Usage:       "path to the registries.conf file",
+			Destination: &opts.registriesConfPath,
+			Hidden:      true,
+		},
 	}
 	app.Before = opts.before
 	app.Commands = []cli.Command{
@@ -91,6 +98,7 @@ func createApp() (*cli.App, *globalOptions) {
 		layersCmd(&opts),
 		deleteCmd(&opts),
 		manifestDigestCmd(),
+		syncCmd(&opts),
 		standaloneSignCmd(),
 		standaloneVerifyCmd(),
 		untrustedSignatureDumpCmd(),
@@ -99,7 +107,7 @@ func createApp() (*cli.App, *globalOptions) {
 }
 
 // before is run by the cli package for any command, before running the command-specific handler.
-func (opts *globalOptions) before(_ *cli.Context) error {
+func (opts *globalOptions) before(ctx *cli.Context) error {
 	if opts.debug {
 		logrus.SetLevel(logrus.DebugLevel)
 	}

cmd/skopeo/manifest.go

@@ -6,7 +6,7 @@ import (
 	"io"
 	"io/ioutil"
 
-	"github.com/containers/image/manifest"
+	"github.com/containers/image/v5/manifest"
 	"github.com/urfave/cli"
 )
 

cmd/skopeo/signing.go

@@ -7,7 +7,7 @@ import (
 	"io"
 	"io/ioutil"
 
-	"github.com/containers/image/signature"
+	"github.com/containers/image/v5/signature"
 	"github.com/urfave/cli"
 )
 

cmd/skopeo/signing_test.go

@@ -7,7 +7,7 @@ import (
 	"testing"
 	"time"
 
-	"github.com/containers/image/signature"
+	"github.com/containers/image/v5/signature"
 	"github.com/opencontainers/go-digest"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"

cmd/skopeo/sync.go

@@ -0,0 +1,549 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"os"
+	"path"
+	"path/filepath"
+	"strings"
+
+	"github.com/containers/image/v5/copy"
+	"github.com/containers/image/v5/directory"
+	"github.com/containers/image/v5/docker"
+	"github.com/containers/image/v5/docker/reference"
+	"github.com/containers/image/v5/transports"
+	"github.com/containers/image/v5/types"
+	"github.com/pkg/errors"
+	"github.com/sirupsen/logrus"
+	"github.com/urfave/cli"
+	"gopkg.in/yaml.v2"
+)
+
+// syncOptions contains information retrieved from the skopeo sync command line.
+type syncOptions struct {
+	global            *globalOptions    // Global (not command dependant) skopeo options
+	srcImage          *imageOptions     // Source image options
+	destImage         *imageDestOptions // Destination image options
+	removeSignatures  bool              // Do not copy signatures from the source image
+	signByFingerprint string            // Sign the image using a GPG key with the specified fingerprint
+	source            string            // Source repository name
+	destination       string            // Destination registry name
+	scoped            bool              // When true, namespace copied images at destination using the source repository name
+}
+
+// repoDescriptor contains information of a single repository used as a sync source.
+type repoDescriptor struct {
+	DirBasePath  string                 // base path when source is 'dir'
+	TaggedImages []types.ImageReference // List of tagged image found for the repository
+	Context      *types.SystemContext   // SystemContext for the sync command
+}
+
+// tlsVerify is an implementation of the Unmarshaler interface, used to
+// customize the unmarshaling behaviour of the tls-verify YAML key.
+type tlsVerifyConfig struct {
+	skip types.OptionalBool // skip TLS verification check (false by default)
+}
+
+// registrySyncConfig contains information about a single registry, read from
+// the source YAML file
+type registrySyncConfig struct {
+	Images      map[string][]string    // Images map images name to slices with the images' tags
+	Credentials types.DockerAuthConfig // Username and password used to authenticate with the registry
+	TLSVerify   tlsVerifyConfig        `yaml:"tls-verify"` // TLS verification mode (enabled by default)
+	CertDir     string                 `yaml:"cert-dir"`   // Path to the TLS certificates of the registry
+}
+
+// sourceConfig contains all registries information read from the source YAML file
+type sourceConfig map[string]registrySyncConfig
+
+func syncCmd(global *globalOptions) cli.Command {
+	sharedFlags, sharedOpts := sharedImageFlags()
+	srcFlags, srcOpts := dockerImageFlags(global, sharedOpts, "src-", "screds")
+	destFlags, destOpts := dockerImageFlags(global, sharedOpts, "dest-", "dcreds")
+
+	opts := syncOptions{
+		global:    global,
+		srcImage:  srcOpts,
+		destImage: &imageDestOptions{imageOptions: destOpts},
+	}
+
+	return cli.Command{
+		Name:  "sync",
+		Usage: "Synchronize one or more images from one location to another",
+		Description: fmt.Sprint(`
+
+	Copy all the images from a SOURCE to a DESTINATION.
+
+	Allowed SOURCE transports (specified with --src): docker, dir, yaml.
+	Allowed DESTINATION transports (specified with --dest): docker, dir.
+
+	See skopeo-sync(1) for details.
+	`),
+		ArgsUsage: "--src SOURCE-LOCATION --dest DESTINATION-LOCATION SOURCE DESTINATION",
+		Action:    commandAction(opts.run),
+		// FIXME: Do we need to namespace the GPG aspect?
+		Flags: append(append(append([]cli.Flag{
+			cli.BoolFlag{
+				Name:        "remove-signatures",
+				Usage:       "Do not copy signatures from SOURCE images",
+				Destination: &opts.removeSignatures,
+			},
+			cli.StringFlag{
+				Name:        "sign-by",
+				Usage:       "Sign the image using a GPG key with the specified `FINGERPRINT`",
+				Destination: &opts.signByFingerprint,
+			},
+			cli.StringFlag{
+				Name:        "src, s",
+				Usage:       "SOURCE transport type",
+				Destination: &opts.source,
+			},
+			cli.StringFlag{
+				Name:        "dest, d",
+				Usage:       "DESTINATION transport type",
+				Destination: &opts.destination,
+			},
+			cli.BoolFlag{
+				Name:        "scoped",
+				Usage:       "Images at DESTINATION are prefix using the full source image path as scope",
+				Destination: &opts.scoped,
+			},
+		}, sharedFlags...), srcFlags...), destFlags...),
+	}
+}
+
+// unmarshalYAML is the implementation of the Unmarshaler interface method
+// method for the tlsVerifyConfig type.
+// It unmarshals the 'tls-verify' YAML key so that, when they key is not
+// specified, tls verification is enforced.
+func (tls *tlsVerifyConfig) UnmarshalYAML(unmarshal func(interface{}) error) error {
+	var verify bool
+	if err := unmarshal(&verify); err != nil {
+		return err
+	}
+
+	tls.skip = types.NewOptionalBool(!verify)
+	return nil
+}
+
+// newSourceConfig unmarshals the provided YAML file path to the sourceConfig type.
+// It returns a new unmarshaled sourceConfig object and any error encountered.
+func newSourceConfig(yamlFile string) (sourceConfig, error) {
+	var cfg sourceConfig
+	source, err := ioutil.ReadFile(yamlFile)
+	if err != nil {
+		return cfg, err
+	}
+	err = yaml.Unmarshal(source, &cfg)
+	if err != nil {
+		return cfg, errors.Wrapf(err, "Failed to unmarshal %q", yamlFile)
+	}
+	return cfg, nil
+}
+
+// destinationReference creates an image reference using the provided transport.
+// It returns a image reference to be used as destination of an image copy and
+// any error encountered.
+func destinationReference(destination string, transport string) (types.ImageReference, error) {
+	var imageTransport types.ImageTransport
+
+	switch transport {
+	case docker.Transport.Name():
+		destination = fmt.Sprintf("//%s", destination)
+		imageTransport = docker.Transport
+	case directory.Transport.Name():
+		_, err := os.Stat(destination)
+		if err == nil {
+			return nil, errors.Errorf(fmt.Sprintf("Refusing to overwrite destination directory %q", destination))
+		}
+		if !os.IsNotExist(err) {
+			return nil, errors.Wrap(err, "Destination directory could not be used")
+		}
+		// the directory holding the image must be created here
+		if err = os.MkdirAll(destination, 0755); err != nil {
+			return nil, errors.Wrapf(err, fmt.Sprintf("Error creating directory for image %s",
+				destination))
+		}
+		imageTransport = directory.Transport
+	default:
+		return nil, errors.Errorf("%q is not a valid destination transport", transport)
+	}
+	logrus.Debugf("Destination for transport %q: %s", transport, destination)
+
+	destRef, err := imageTransport.ParseReference(destination)
+	if err != nil {
+		return nil, errors.Wrapf(err, fmt.Sprintf("Cannot obtain a valid image reference for transport %q and reference %q", imageTransport.Name(), destination))
+	}
+
+	return destRef, nil
+}
+
+// getImageTags retrieves all the tags associated to an image hosted on a
+// container registry.
+// It returns a string slice of tags and any error encountered.
+func getImageTags(ctx context.Context, sysCtx *types.SystemContext, imgRef types.ImageReference) ([]string, error) {
+	name := imgRef.DockerReference().Name()
+	logrus.WithFields(logrus.Fields{
+		"image": name,
+	}).Info("Getting tags")
+	tags, err := docker.GetRepositoryTags(ctx, sysCtx, imgRef)
+
+	switch err := err.(type) {
+	case nil:
+		break
+	case docker.ErrUnauthorizedForCredentials:
+		// Some registries may decide to block the "list all tags" endpoint.
+		// Gracefully allow the sync to continue in this case.
+		logrus.Warnf("Registry disallows tag list retrieval: %s", err)
+		break
+	default:
+		return tags, errors.Wrapf(err, fmt.Sprintf("Error determining repository tags for image %s", name))
+	}
+
+	return tags, nil
+}
+
+// isTagSpecified checks if an image name includes a tag and returns any errors
+// encountered.
+func isTagSpecified(imageName string) (bool, error) {
+	normNamed, err := reference.ParseNormalizedNamed(imageName)
+	if err != nil {
+		return false, err
+	}
+
+	tagged := !reference.IsNameOnly(normNamed)
+	logrus.WithFields(logrus.Fields{
+		"imagename": imageName,
+		"tagged":    tagged,
+	}).Info("Tag presence check")
+	return tagged, nil
+}
+
+// imagesTopCopyFromRepo builds a list of image references from the tags
+// found in the source repository.
+// It returns an image reference slice with as many elements as the tags found
+// and any error encountered.
+func imagesToCopyFromRepo(repoReference types.ImageReference, repoName string, sourceCtx *types.SystemContext) ([]types.ImageReference, error) {
+	var sourceReferences []types.ImageReference
+	tags, err := getImageTags(context.Background(), sourceCtx, repoReference)
+	if err != nil {
+		return sourceReferences, err
+	}
+
+	for _, tag := range tags {
+		imageAndTag := fmt.Sprintf("%s:%s", repoName, tag)
+		ref, err := docker.ParseReference(imageAndTag)
+		if err != nil {
+			return nil, errors.Wrapf(err, fmt.Sprintf("Cannot obtain a valid image reference for transport %q and reference %q", docker.Transport.Name(), imageAndTag))
+		}
+		sourceReferences = append(sourceReferences, ref)
+	}
+	return sourceReferences, nil
+}
+
+// imagesTopCopyFromDir builds a list of image references from the images found
+// in the source directory.
+// It returns an image reference slice with as many elements as the images found
+// and any error encountered.
+func imagesToCopyFromDir(dirPath string) ([]types.ImageReference, error) {
+	var sourceReferences []types.ImageReference
+	err := filepath.Walk(dirPath, func(path string, info os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+		if !info.IsDir() && info.Name() == "manifest.json" {
+			dirname := filepath.Dir(path)
+			ref, err := directory.Transport.ParseReference(dirname)
+			if err != nil {
+				return errors.Wrapf(err, fmt.Sprintf("Cannot obtain a valid image reference for transport %q and reference %q", directory.Transport.Name(), dirname))
+			}
+			sourceReferences = append(sourceReferences, ref)
+			return filepath.SkipDir
+		}
+		return nil
+	})
+
+	if err != nil {
+		return sourceReferences,
+			errors.Wrapf(err, fmt.Sprintf("Error walking the path %q", dirPath))
+	}
+
+	return sourceReferences, nil
+}
+
+// imagesTopCopyFromDir builds a list of repository descriptors from the images
+// in a registry configuration.
+// It returns a repository descriptors slice with as many elements as the images
+// found and any error encountered. Each element of the slice is a list of
+// tagged image references, to be used as sync source.
+func imagesToCopyFromRegistry(registryName string, cfg registrySyncConfig, sourceCtx types.SystemContext) ([]repoDescriptor, error) {
+	var repoDescList []repoDescriptor
+	for imageName, tags := range cfg.Images {
+		repoName := fmt.Sprintf("//%s", path.Join(registryName, imageName))
+		logrus.WithFields(logrus.Fields{
+			"repo":     imageName,
+			"registry": registryName,
+		}).Info("Processing repo")
+
+		serverCtx := &sourceCtx
+		// override ctx with per-registryName options
+		serverCtx.DockerCertPath = cfg.CertDir
+		serverCtx.DockerDaemonCertPath = cfg.CertDir
+		serverCtx.DockerDaemonInsecureSkipTLSVerify = (cfg.TLSVerify.skip == types.OptionalBoolTrue)
+		serverCtx.DockerInsecureSkipTLSVerify = cfg.TLSVerify.skip
+		serverCtx.DockerAuthConfig = &cfg.Credentials
+
+		var sourceReferences []types.ImageReference
+		for _, tag := range tags {
+			source := fmt.Sprintf("%s:%s", repoName, tag)
+
+			imageRef, err := docker.ParseReference(source)
+			if err != nil {
+				logrus.WithFields(logrus.Fields{
+					"tag": source,
+				}).Error("Error processing tag, skipping")
+				logrus.Errorf("Error getting image reference: %s", err)
+				continue
+			}
+			sourceReferences = append(sourceReferences, imageRef)
+		}
+
+		if len(tags) == 0 {
+			logrus.WithFields(logrus.Fields{
+				"repo":     imageName,
+				"registry": registryName,
+			}).Info("Querying registry for image tags")
+
+			imageRef, err := docker.ParseReference(repoName)
+			if err != nil {
+				logrus.WithFields(logrus.Fields{
+					"repo":     imageName,
+					"registry": registryName,
+				}).Error("Error processing repo, skipping")
+				logrus.Error(err)
+				continue
+			}
+
+			sourceReferences, err = imagesToCopyFromRepo(imageRef, repoName, serverCtx)
+			if err != nil {
+				logrus.WithFields(logrus.Fields{
+					"repo":     imageName,
+					"registry": registryName,
+				}).Error("Error processing repo, skipping")
+				logrus.Error(err)
+				continue
+			}
+		}
+
+		if len(sourceReferences) == 0 {
+			logrus.WithFields(logrus.Fields{
+				"repo":     imageName,
+				"registry": registryName,
+			}).Warnf("No tags to sync found")
+			continue
+		}
+		repoDescList = append(repoDescList, repoDescriptor{
+			TaggedImages: sourceReferences,
+			Context:      serverCtx})
+	}
+
+	return repoDescList, nil
+}
+
+// imagesToCopy retrieves all the images to copy from a specified sync source
+// and transport.
+// It returns a slice of repository descriptors, where each descriptor is a
+// list of tagged image references to be used as sync source, and any error
+// encountered.
+func imagesToCopy(source string, transport string, sourceCtx *types.SystemContext) ([]repoDescriptor, error) {
+	var descriptors []repoDescriptor
+
+	switch transport {
+	case docker.Transport.Name():
+		desc := repoDescriptor{
+			Context: sourceCtx,
+		}
+		refName := fmt.Sprintf("//%s", source)
+		srcRef, err := docker.ParseReference(refName)
+		if err != nil {
+			return nil, errors.Wrapf(err, fmt.Sprintf("Cannot obtain a valid image reference for transport %q and reference %q", docker.Transport.Name(), refName))
+		}
+		imageTagged, err := isTagSpecified(source)
+		if err != nil {
+			return descriptors, err
+		}
+
+		if imageTagged {
+			desc.TaggedImages = append(desc.TaggedImages, srcRef)
+			descriptors = append(descriptors, desc)
+			break
+		}
+
+		desc.TaggedImages, err = imagesToCopyFromRepo(
+			srcRef,
+			fmt.Sprintf("//%s", source),
+			sourceCtx)
+
+		if err != nil {
+			return descriptors, err
+		}
+		if len(desc.TaggedImages) == 0 {
+			return descriptors, errors.Errorf("No images to sync found in %q", source)
+		}
+		descriptors = append(descriptors, desc)
+
+	case directory.Transport.Name():
+		desc := repoDescriptor{
+			Context: sourceCtx,
+		}
+
+		if _, err := os.Stat(source); err != nil {
+			return descriptors, errors.Wrap(err, "Invalid source directory specified")
+		}
+		desc.DirBasePath = source
+		var err error
+		desc.TaggedImages, err = imagesToCopyFromDir(source)
+		if err != nil {
+			return descriptors, err
+		}
+		if len(desc.TaggedImages) == 0 {
+			return descriptors, errors.Errorf("No images to sync found in %q", source)
+		}
+		descriptors = append(descriptors, desc)
+
+	case "yaml":
+		cfg, err := newSourceConfig(source)
+		if err != nil {
+			return descriptors, err
+		}
+		for registryName, registryConfig := range cfg {
+			if len(registryConfig.Images) == 0 {
+				logrus.WithFields(logrus.Fields{
+					"registry": registryName,
+				}).Warn("No images specified for registry")
+				continue
+			}
+
+			descs, err := imagesToCopyFromRegistry(registryName, registryConfig, *sourceCtx)
+			if err != nil {
+				return descriptors, errors.Wrapf(err, "Failed to retrieve list of images from registry %q", registryName)
+			}
+			descriptors = append(descriptors, descs...)
+		}
+	}
+
+	return descriptors, nil
+}
+
+func (opts *syncOptions) run(args []string, stdout io.Writer) error {
+	if len(args) != 2 {
+		return errorShouldDisplayUsage{errors.New("Exactly two arguments expected")}
+	}
+
+	policyContext, err := opts.global.getPolicyContext()
+	if err != nil {
+		return errors.Wrapf(err, "Error loading trust policy")
+	}
+	defer policyContext.Destroy()
+
+	// validate source and destination options
+	contains := func(val string, list []string) (_ bool) {
+		for _, l := range list {
+			if l == val {
+				return true
+			}
+		}
+		return
+	}
+
+	if len(opts.source) == 0 {
+		return errors.New("A source transport must be specified")
+	}
+	if !contains(opts.source, []string{docker.Transport.Name(), directory.Transport.Name(), "yaml"}) {
+		return errors.Errorf("%q is not a valid source transport", opts.source)
+	}
+
+	if len(opts.destination) == 0 {
+		return errors.New("A destination transport must be specified")
+	}
+	if !contains(opts.destination, []string{docker.Transport.Name(), directory.Transport.Name()}) {
+		return errors.Errorf("%q is not a valid destination transport", opts.destination)
+	}
+
+	if opts.source == opts.destination && opts.source == directory.Transport.Name() {
+		return errors.New("sync from 'dir' to 'dir' not implemented, consider using rsync instead")
+	}
+
+	sourceCtx, err := opts.srcImage.newSystemContext()
+	if err != nil {
+		return err
+	}
+
+	sourceArg := args[0]
+	srcRepoList, err := imagesToCopy(sourceArg, opts.source, sourceCtx)
+	if err != nil {
+		return err
+	}
+
+	destination := args[1]
+	destinationCtx, err := opts.destImage.newSystemContext()
+	if err != nil {
+		return err
+	}
+
+	ctx, cancel := opts.global.commandTimeoutContext()
+	defer cancel()
+
+	imagesNumber := 0
+	options := copy.Options{
+		RemoveSignatures: opts.removeSignatures,
+		SignBy:           opts.signByFingerprint,
+		ReportWriter:     os.Stdout,
+		DestinationCtx:   destinationCtx,
+	}
+
+	for _, srcRepo := range srcRepoList {
+		options.SourceCtx = srcRepo.Context
+		for counter, ref := range srcRepo.TaggedImages {
+			var destSuffix string
+			switch ref.Transport() {
+			case docker.Transport:
+				// docker -> dir or docker -> docker
+				destSuffix = ref.DockerReference().String()
+			case directory.Transport:
+				// dir -> docker (we don't allow `dir` -> `dir` sync operations)
+				destSuffix = strings.TrimPrefix(ref.StringWithinTransport(), srcRepo.DirBasePath)
+				if destSuffix == "" {
+					// if source is a full path to an image, have destPath scoped to repo:tag
+					destSuffix = path.Base(srcRepo.DirBasePath)
+				}
+			}
+
+			if !opts.scoped {
+				destSuffix = path.Base(destSuffix)
+			}
+
+			destRef, err := destinationReference(path.Join(destination, destSuffix), opts.destination)
+			if err != nil {
+				return err
+			}
+
+			logrus.WithFields(logrus.Fields{
+				"from": transports.ImageName(ref),
+				"to":   transports.ImageName(destRef),
+			}).Infof("Copying image tag %d/%d", counter+1, len(srcRepo.TaggedImages))
+
+			_, err = copy.Image(ctx, policyContext, destRef, ref, &options)
+			if err != nil {
+				return errors.Wrapf(err, fmt.Sprintf("Error copying tag %q", transports.ImageName(ref)))
+			}
+			imagesNumber++
+		}
+	}
+
+	logrus.Infof("Synced %d images from %d sources", imagesNumber, len(srcRepoList))
+	return nil
+}

cmd/skopeo/unshare.go

@@ -0,0 +1,11 @@
+// +build !linux
+
+package main
+
+func maybeReexec() error {
+	return nil
+}
+
+func reexecIfNecessaryForImages(inputImageNames ...string) error {
+	return nil
+}

cmd/skopeo/unshare_linux.go

@@ -0,0 +1,48 @@
+package main
+
+import (
+	"github.com/containers/common/pkg/unshare"
+	"github.com/containers/image/v5/transports/alltransports"
+	"github.com/pkg/errors"
+	"github.com/syndtr/gocapability/capability"
+)
+
+var neededCapabilities = []capability.Cap{
+	capability.CAP_CHOWN,
+	capability.CAP_DAC_OVERRIDE,
+	capability.CAP_FOWNER,
+	capability.CAP_FSETID,
+	capability.CAP_MKNOD,
+	capability.CAP_SETFCAP,
+}
+
+func maybeReexec() error {
+	// With Skopeo we need only the subset of the root capabilities necessary
+	// for pulling an image to the storage.  Do not attempt to create a namespace
+	// if we already have the capabilities we need.
+	capabilities, err := capability.NewPid(0)
+	if err != nil {
+		return errors.Wrapf(err, "error reading the current capabilities sets")
+	}
+	for _, cap := range neededCapabilities {
+		if !capabilities.Get(capability.EFFECTIVE, cap) {
+			// We miss a capability we need, create a user namespaces
+			unshare.MaybeReexecUsingUserNamespace(true)
+			return nil
+		}
+	}
+	return nil
+}
+
+func reexecIfNecessaryForImages(imageNames ...string) error {
+	// Check if container-storage is used before doing unshare
+	for _, imageName := range imageNames {
+		transport := alltransports.TransportFromImageName(imageName)
+		// Hard-code the storage name to avoid a reference on c/image/storage.
+		// See https://github.com/containers/skopeo/issues/771#issuecomment-563125006.
+		if transport != nil && transport.Name() == "containers-storage" {
+			return maybeReexec()
+		}
+	}
+	return nil
+}

cmd/skopeo/utils.go

@@ -2,12 +2,13 @@ package main
 
 import (
 	"context"
-	"errors"
 	"io"
 	"strings"
 
-	"github.com/containers/image/transports/alltransports"
-	"github.com/containers/image/types"
+	"github.com/containers/image/v5/pkg/compression"
+	"github.com/containers/image/v5/transports/alltransports"
+	"github.com/containers/image/v5/types"
+	"github.com/pkg/errors"
 	"github.com/urfave/cli"
 )
 
@@ -49,23 +50,35 @@ func sharedImageFlags() ([]cli.Flag, *sharedImageOptions) {
 	}, &opts
 }
 
+// imageOptions collects CLI flags specific to the "docker" transport, which are
+// the same across subcommands, but may be different for each image
+// (e.g. may differ between the source and destination of a copy)
+type dockerImageOptions struct {
+	global         *globalOptions      // May be shared across several imageOptions instances.
+	shared         *sharedImageOptions // May be shared across several imageOptions instances.
+	authFilePath   optionalString      // Path to a */containers/auth.json (prefixed version to override shared image option).
+	credsOption    optionalString      // username[:password] for accessing a registry
+	dockerCertPath string              // A directory using Docker-like *.{crt,cert,key} files for connecting to a registry or a daemon
+	tlsVerify      optionalBool        // Require HTTPS and verify certificates (for docker: and docker-daemon:)
+	noCreds        bool                // Access the registry anonymously
+}
+
 // imageOptions collects CLI flags which are the same across subcommands, but may be different for each image
 // (e.g. may differ between the source and destination of a copy)
 type imageOptions struct {
-	global           *globalOptions      // May be shared across several imageOptions instances.
-	shared           *sharedImageOptions // May be shared across several imageOptions instances.
-	credsOption      optionalString      // username[:password] for accessing a registry
-	dockerCertPath   string              // A directory using Docker-like *.{crt,cert,key} files for connecting to a registry or a daemon
-	tlsVerify        optionalBool        // Require HTTPS and verify certificates (for docker: and docker-daemon:)
-	sharedBlobDir    string              // A directory to use for OCI blobs, shared across repositories
-	dockerDaemonHost string              // docker-daemon: host to connect to
+	dockerImageOptions
+	sharedBlobDir    string // A directory to use for OCI blobs, shared across repositories
+	dockerDaemonHost string // docker-daemon: host to connect to
 }
 
-// imageFlags prepares a collection of CLI flags writing into imageOptions, and the managed imageOptions structure.
-func imageFlags(global *globalOptions, shared *sharedImageOptions, flagPrefix, credsOptionAlias string) ([]cli.Flag, *imageOptions) {
+// dockerImageFlags prepares a collection of docker-transport specific CLI flags
+// writing into imageOptions, and the managed imageOptions structure.
+func dockerImageFlags(global *globalOptions, shared *sharedImageOptions, flagPrefix, credsOptionAlias string) ([]cli.Flag, *imageOptions) {
 	opts := imageOptions{
-		global: global,
-		shared: shared,
+		dockerImageOptions: dockerImageOptions{
+			global: global,
+			shared: shared,
+		},
 	}
 
 	// This is horribly ugly, but we need to support the old option forms of (skopeo copy) for compatibility.
@@ -75,7 +88,18 @@ func imageFlags(global *globalOptions, shared *sharedImageOptions, flagPrefix, c
 		credsOptionExtra += "," + credsOptionAlias
 	}
 
-	return []cli.Flag{
+	var flags []cli.Flag
+	if flagPrefix != "" {
+		// the non-prefixed flag is handled by a shared flag.
+		flags = append(flags,
+			cli.GenericFlag{
+				Name:  flagPrefix + "authfile",
+				Usage: "path of the authentication file. Default is ${XDG_RUNTIME_DIR}/containers/auth.json",
+				Value: newOptionalStringValue(&opts.authFilePath),
+			},
+		)
+	}
+	flags = append(flags,
 		cli.GenericFlag{
 			Name:  flagPrefix + "creds" + credsOptionExtra,
 			Usage: "Use `USERNAME[:PASSWORD]` for accessing the registry",
@@ -91,6 +115,20 @@ func imageFlags(global *globalOptions, shared *sharedImageOptions, flagPrefix, c
 			Usage: "require HTTPS and verify certificates when talking to the container registry or daemon (defaults to true)",
 			Value: newOptionalBoolValue(&opts.tlsVerify),
 		},
+		cli.BoolFlag{
+			Name:        flagPrefix + "no-creds",
+			Usage:       "Access the registry anonymously",
+			Destination: &opts.noCreds,
+		},
+	)
+	return flags, &opts
+}
+
+// imageFlags prepares a collection of CLI flags writing into imageOptions, and the managed imageOptions structure.
+func imageFlags(global *globalOptions, shared *sharedImageOptions, flagPrefix, credsOptionAlias string) ([]cli.Flag, *imageOptions) {
+	dockerFlags, opts := dockerImageFlags(global, shared, flagPrefix, credsOptionAlias)
+
+	return append(dockerFlags, []cli.Flag{
 		cli.StringFlag{
 			Name:        flagPrefix + "shared-blob-dir",
 			Usage:       "`DIRECTORY` to use to share blobs across OCI repositories",
@@ -101,21 +139,25 @@ func imageFlags(global *globalOptions, shared *sharedImageOptions, flagPrefix, c
 			Usage:       "use docker daemon host at `HOST` (docker-daemon: only)",
 			Destination: &opts.dockerDaemonHost,
 		},
-	}, &opts
+	}...), opts
 }
 
 // newSystemContext returns a *types.SystemContext corresponding to opts.
 // It is guaranteed to return a fresh instance, so it is safe to make additional updates to it.
 func (opts *imageOptions) newSystemContext() (*types.SystemContext, error) {
 	ctx := &types.SystemContext{
-		RegistriesDirPath:    opts.global.registriesDirPath,
-		ArchitectureChoice:   opts.global.overrideArch,
-		OSChoice:             opts.global.overrideOS,
-		DockerCertPath:       opts.dockerCertPath,
-		OCISharedBlobDirPath: opts.sharedBlobDir,
-		AuthFilePath:         opts.shared.authFilePath,
-		DockerDaemonHost:     opts.dockerDaemonHost,
-		DockerDaemonCertPath: opts.dockerCertPath,
+		RegistriesDirPath:        opts.global.registriesDirPath,
+		ArchitectureChoice:       opts.global.overrideArch,
+		OSChoice:                 opts.global.overrideOS,
+		DockerCertPath:           opts.dockerCertPath,
+		OCISharedBlobDirPath:     opts.sharedBlobDir,
+		AuthFilePath:             opts.shared.authFilePath,
+		DockerDaemonHost:         opts.dockerDaemonHost,
+		DockerDaemonCertPath:     opts.dockerCertPath,
+		SystemRegistriesConfPath: opts.global.registriesConfPath,
+	}
+	if opts.dockerImageOptions.authFilePath.present {
+		ctx.AuthFilePath = opts.dockerImageOptions.authFilePath.value
 	}
 	if opts.tlsVerify.present {
 		ctx.DockerDaemonInsecureSkipTLSVerify = !opts.tlsVerify.value
@@ -127,6 +169,9 @@ func (opts *imageOptions) newSystemContext() (*types.SystemContext, error) {
 	if opts.tlsVerify.present {
 		ctx.DockerInsecureSkipTLSVerify = types.NewOptionalBool(!opts.tlsVerify.value)
 	}
+	if opts.credsOption.present && opts.noCreds {
+		return nil, errors.New("creds and no-creds cannot be specified at the same time")
+	}
 	if opts.credsOption.present {
 		var err error
 		ctx.DockerAuthConfig, err = getDockerAuth(opts.credsOption.value)
@@ -134,14 +179,20 @@ func (opts *imageOptions) newSystemContext() (*types.SystemContext, error) {
 			return nil, err
 		}
 	}
+	if opts.noCreds {
+		ctx.DockerAuthConfig = &types.DockerAuthConfig{}
+	}
+
 	return ctx, nil
 }
 
 // imageDestOptions is a superset of imageOptions specialized for iamge destinations.
 type imageDestOptions struct {
 	*imageOptions
-	osTreeTmpDir        string // A directory to use for OSTree temporary files
-	dirForceCompression bool   // Compress layers when saving to the dir: transport
+	dirForceCompression         bool        // Compress layers when saving to the dir: transport
+	ociAcceptUncompressedLayers bool        // Whether to accept uncompressed layers in the oci: transport
+	compressionFormat           string      // Format to use for the compression
+	compressionLevel            optionalInt // Level to use for the compression
 }
 
 // imageDestFlags prepares a collection of CLI flags writing into imageDestOptions, and the managed imageDestOptions structure.
@@ -150,16 +201,26 @@ func imageDestFlags(global *globalOptions, shared *sharedImageOptions, flagPrefi
 	opts := imageDestOptions{imageOptions: genericOptions}
 
 	return append(genericFlags, []cli.Flag{
-		cli.StringFlag{
-			Name:        flagPrefix + "ostree-tmp-dir",
-			Usage:       "`DIRECTORY` to use for OSTree temporary files",
-			Destination: &opts.osTreeTmpDir,
-		},
 		cli.BoolFlag{
 			Name:        flagPrefix + "compress",
 			Usage:       "Compress tarball image layers when saving to directory using the 'dir' transport. (default is same compression type as source)",
 			Destination: &opts.dirForceCompression,
 		},
+		cli.BoolFlag{
+			Name:        flagPrefix + "oci-accept-uncompressed-layers",
+			Usage:       "Allow uncompressed image layers when saving to an OCI image using the 'oci' transport. (default is to compress things that aren't compressed)",
+			Destination: &opts.ociAcceptUncompressedLayers,
+		},
+		cli.StringFlag{
+			Name:        flagPrefix + "compress-format",
+			Usage:       "`FORMAT` to use for the compression",
+			Destination: &opts.compressionFormat,
+		},
+		cli.GenericFlag{
+			Name:  flagPrefix + "compress-level",
+			Usage: "`LEVEL` to use for the compression",
+			Value: newOptionalIntValue(&opts.compressionLevel),
+		},
 	}...), &opts
 }
 
@@ -171,8 +232,18 @@ func (opts *imageDestOptions) newSystemContext() (*types.SystemContext, error) {
 		return nil, err
 	}
 
-	ctx.OSTreeTmpDirPath = opts.osTreeTmpDir
 	ctx.DirForceCompress = opts.dirForceCompression
+	ctx.OCIAcceptUncompressedLayers = opts.ociAcceptUncompressedLayers
+	if opts.compressionFormat != "" {
+		cf, err := compression.AlgorithmByName(opts.compressionFormat)
+		if err != nil {
+			return nil, err
+		}
+		ctx.CompressionFormat = &cf
+	}
+	if opts.compressionLevel.present {
+		ctx.CompressionLevel = &opts.compressionLevel.value
+	}
 	return ctx, err
 }
 

cmd/skopeo/utils_test.go

@@ -4,7 +4,7 @@ import (
 	"flag"
 	"testing"
 
-	"github.com/containers/image/types"
+	"github.com/containers/image/v5/types"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 )
@@ -54,6 +54,7 @@ func TestImageOptionsNewSystemContext(t *testing.T) {
 		"--override-os", "overridden-os",
 	}, []string{
 		"--authfile", "/srv/authfile",
+		"--dest-authfile", "/srv/dest-authfile",
 		"--dest-cert-dir", "/srv/cert-dir",
 		"--dest-shared-blob-dir", "/srv/shared-blob-dir",
 		"--dest-daemon-host", "daemon-host.example.com",
@@ -64,7 +65,7 @@ func TestImageOptionsNewSystemContext(t *testing.T) {
 	require.NoError(t, err)
 	assert.Equal(t, &types.SystemContext{
 		RegistriesDirPath:                 "/srv/registries.d",
-		AuthFilePath:                      "/srv/authfile",
+		AuthFilePath:                      "/srv/dest-authfile",
 		ArchitectureChoice:                "overridden-arch",
 		OSChoice:                          "overridden-os",
 		OCISharedBlobDirPath:              "/srv/shared-blob-dir",
@@ -152,7 +153,6 @@ func TestImageDestOptionsNewSystemContext(t *testing.T) {
 	}, []string{
 		"--authfile", "/srv/authfile",
 		"--dest-cert-dir", "/srv/cert-dir",
-		"--dest-ostree-tmp-dir", "/srv/ostree-tmp-dir",
 		"--dest-shared-blob-dir", "/srv/shared-blob-dir",
 		"--dest-compress=true",
 		"--dest-daemon-host", "daemon-host.example.com",
@@ -170,7 +170,6 @@ func TestImageDestOptionsNewSystemContext(t *testing.T) {
 		DockerCertPath:                    "/srv/cert-dir",
 		DockerInsecureSkipTLSVerify:       types.OptionalBoolTrue,
 		DockerAuthConfig:                  &types.DockerAuthConfig{Username: "creds-user", Password: "creds-password"},
-		OSTreeTmpDirPath:                  "/srv/ostree-tmp-dir",
 		DockerDaemonCertPath:              "/srv/cert-dir",
 		DockerDaemonHost:                  "daemon-host.example.com",
 		DockerDaemonInsecureSkipTLSVerify: true,
@@ -182,3 +181,47 @@ func TestImageDestOptionsNewSystemContext(t *testing.T) {
 	_, err = opts.newSystemContext()
 	assert.Error(t, err)
 }
+
+// since there is a shared authfile image option and a non-shared (prefixed) one, make sure the override logic
+// works correctly.
+func TestImageOptionsAuthfileOverride(t *testing.T) {
+
+	for _, testCase := range []struct {
+		flagPrefix           string
+		cmdFlags             []string
+		expectedAuthfilePath string
+	}{
+		// if there is no prefix, only authfile is allowed.
+		{"",
+			[]string{
+				"--authfile", "/srv/authfile",
+			}, "/srv/authfile"},
+		// if authfile and dest-authfile is provided, dest-authfile wins
+		{"dest-",
+			[]string{
+				"--authfile", "/srv/authfile",
+				"--dest-authfile", "/srv/dest-authfile",
+			}, "/srv/dest-authfile",
+		},
+		// if only the shared authfile is provided, authfile must be present in system context
+		{"dest-",
+			[]string{
+				"--authfile", "/srv/authfile",
+			}, "/srv/authfile",
+		},
+		// if only the dest authfile is provided, dest-authfile must be present in system context
+		{"dest-",
+			[]string{
+				"--dest-authfile", "/srv/dest-authfile",
+			}, "/srv/dest-authfile",
+		},
+	} {
+		opts := fakeImageOptions(t, testCase.flagPrefix, []string{}, testCase.cmdFlags)
+		res, err := opts.newSystemContext()
+		require.NoError(t, err)
+
+		assert.Equal(t, &types.SystemContext{
+			AuthFilePath: testCase.expectedAuthfilePath,
+		}, res)
+	}
+}

completions/bash/skopeo

@@ -1,7 +1,5 @@
 #! /bin/bash
 
-: ${PROG:=$(basename ${BASH_SOURCE})}
-
 _complete_() {
     local options_with_args=$1
     local boolean_options="$2 -h --help"
@@ -10,21 +8,21 @@ _complete_() {
     local option_with_args
     for option_with_args in $options_with_args $transports
     do
-        if [ "$option_with_args" == "$prev" -o "$option_with_args" == "$cur" ]
+        if [ "$option_with_args" == "$prev" ] || [ "$option_with_args" == "$cur" ]
         then
             return
         fi
     done
 
     case "$cur" in
-	-*)
-	    COMPREPLY=( $( compgen -W "$boolean_options $options_with_args" -- "$cur" ) )
-	    ;;
+        -*)
+            while IFS='' read -r line; do COMPREPLY+=("$line"); done < <(compgen -W "$boolean_options $options_with_args" -- "$cur")
+            ;;
         *)
             if [ -n "$transports" ]
             then
                 compopt -o nospace
-                COMPREPLY=( $( compgen -W "$transports" -- "$cur" ) )
+                while IFS='' read -r line; do COMPREPLY+=("$line"); done < <(compgen -W "$transports" -- "$cur")
             fi
             ;;
     esac
@@ -33,12 +31,14 @@ _complete_() {
 _skopeo_supported_transports() {
     local subcommand=$1
 
-    ${PROG} $subcommand --help | grep "Supported transports" -A 1 | tail -n 1 | sed -e 's/,/:/g' -e 's/$/:/'
+    skopeo "$subcommand" --help | grep "Supported transports" -A 1 | tail -n 1 | sed -e 's/,/:/g' -e 's/$/:/'
 }
 
 _skopeo_copy() {
     local options_with_args="
     --authfile
+    --src-authfile
+    --dest-authfile
     --format -f
     --sign-by
     --src-creds --screds
@@ -46,19 +46,23 @@ _skopeo_copy() {
     --src-tls-verify
     --dest-creds --dcreds
     --dest-cert-dir
-    --dest-ostree-tmp-dir
     --dest-tls-verify
     --src-daemon-host
     --dest-daemon-host
     "
 
     local boolean_options="
+    --all
     --dest-compress
     --remove-signatures
+    --src-no-creds
+    --dest-no-creds
+    --dest-oci-accept-uncompressed-layers
     "
 
-    local transports="
-    $(_skopeo_supported_transports $(echo $FUNCNAME | sed 's/_skopeo_//'))
+    local transports
+    transports="
+    $(_skopeo_supported_transports "${FUNCNAME//"_skopeo_"/}")
     "
 
     _complete_ "$options_with_args" "$boolean_options" "$transports"
@@ -71,12 +75,15 @@ _skopeo_inspect() {
      --cert-dir
      "
      local boolean_options="
+     --config
      --raw
      --tls-verify
+     --no-creds
     "
 
-    local transports="
-    $(_skopeo_supported_transports $(echo $FUNCNAME | sed 's/_skopeo_//'))
+    local transports
+    transports="
+    $(_skopeo_supported_transports "${FUNCNAME//"_skopeo_"/}")
     "
 
     _complete_ "$options_with_args" "$boolean_options" "$transports"
@@ -84,7 +91,7 @@ _skopeo_inspect() {
 
 _skopeo_standalone_sign() {
      local options_with_args="
-	   -o --output
+       -o --output
      "
      local boolean_options="
      "
@@ -115,10 +122,12 @@ _skopeo_delete() {
      "
      local boolean_options="
      --tls-verify
+     --no-creds
      "
 
-    local transports="
-    $(_skopeo_supported_transports $(echo $FUNCNAME | sed 's/_skopeo_//'))
+    local transports
+    transports="
+    $(_skopeo_supported_transports "${FUNCNAME//"_skopeo_"/}")
     "
 
     _complete_ "$options_with_args" "$boolean_options" "$transports"
@@ -126,49 +135,53 @@ _skopeo_delete() {
 
 _skopeo_layers() {
      local options_with_args="
-	   --creds
-	   --cert-dir
+       --creds
+       --cert-dir
      "
      local boolean_options="
-	   --tls-verify
+       --tls-verify
      "
     _complete_ "$options_with_args" "$boolean_options"
 }
 
 _skopeo_skopeo() {
+     # XXX: Changes here need to be refleceted in the manually expanded
+     # string in the `case` statement below as well.
      local options_with_args="
-	   --policy
-	   --registries.d
+       --policy
+       --registries.d
        --override-arch
        --override-os
        --command-timeout
      "
      local boolean_options="
-	   --insecure-policy
-	   --debug
-	   --version -v
-	   --help -h
+       --insecure-policy
+       --debug
+       --version -v
+       --help -h
      "
-     commands=$( ${COMP_WORDS[@]:0:$COMP_CWORD} --generate-bash-completion )
 
      case "$prev" in
-	 $main_options_with_args_glob )
-	     return
-	     ;;
+         # XXX: Changes here need to be refleceted in $options_with_args as well.
+         --policy|--registries.d|--override-arch|--override-os|--command-timeout)
+             return
+             ;;
      esac
 
      case "$cur" in
-	 -*)
-	     COMPREPLY=( $( compgen -W "$boolean_options $options_with_args" -- "$cur" ) )
-	     ;;
-	 *)
-	     COMPREPLY=( $( compgen -W "${commands[*]} help" -- "$cur" ) )
-	     ;;
+         -*)
+             while IFS='' read -r line; do COMPREPLY+=("$line"); done < <(compgen -W "$boolean_options $options_with_args" -- "$cur")
+             ;;
+         *)
+             commands=$( "${COMP_WORDS[@]:0:$COMP_CWORD}" --generate-bash-completion )
+
+             while IFS='' read -r line; do COMPREPLY+=("$line"); done < <(compgen -W "${commands[*]} help" -- "$cur")
+             ;;
      esac
 }
 
 _cli_bash_autocomplete() {
-     local cur opts base
+     local cur
 
      COMPREPLY=()
      cur="${COMP_WORDS[COMP_CWORD]}"
@@ -177,26 +190,24 @@ _cli_bash_autocomplete() {
 
      _get_comp_words_by_ref -n : cur prev words cword
 
-     local command=${PROG} cpos=0
+     local command="skopeo" cpos=0
      local counter=1
-     counter=1
-     while [ $counter -lt $cword ]; do
-	 case "!${words[$counter]}" in
-	     *)
-		 command=$(echo "${words[$counter]}" | sed 's/-/_/g')
-		 cpos=$counter
-		 (( cpos++ ))
-		 break
-		 ;;
-	 esac
-	 (( counter++ ))
+     while [ $counter -lt "$cword" ]; do
+         case "${words[$counter]}" in
+             skopeo|copy|inspect|delete|manifest-digest|standalone-sign|standalone-verify|help|h)
+                 command="${words[$counter]//-/_}"
+                 cpos=$counter
+                 (( cpos++ ))
+                 break
+                 ;;
+         esac
+         (( counter++ ))
      done
 
      local completions_func=_skopeo_${command}
-     declare -F $completions_func >/dev/null && $completions_func
+     declare -F "$completions_func" >/dev/null && $completions_func
 
-     eval "$previous_extglob_setting"
      return 0
 }
 
- complete -F _cli_bash_autocomplete $PROG
+ complete -F _cli_bash_autocomplete skopeo

contrib/containers-storage.conf.5.md

@@ -1,60 +0,0 @@
-% storage.conf(5) Container Storage Configuration File
-% Dan Walsh
-% May 2017
-
-# NAME
-storage.conf - Syntax of Container Storage configuration file
-
-# DESCRIPTION
-The STORAGE configuration file specifies all of the available container storage options
-for tools using shared container storage.
-
-# FORMAT
-The [TOML format][toml] is used as the encoding of the configuration file.
-Every option and subtable listed here is nested under a global "storage" table.
-No bare options are used. The format of TOML can be simplified to:
-
-    [table]
-    option = value
-
-    [table.subtable1]
-    option = value
-
-    [table.subtable2]
-    option = value
-
-## STORAGE TABLE
-
-The `storage` table supports the following options:
-
-**graphroot**=""
-  container storage graph dir (default: "/var/lib/containers/storage")
-  Default directory to store all writable content created by container storage programs.
-
-**runroot**=""
-  container storage run dir (default: "/var/run/containers/storage")
-  Default directory to store all temporary writable content created by container storage programs.
-
-**driver**=""
-  container storage driver (default is "overlay")
-  Default Copy On Write (COW) container storage driver.
-
-### STORAGE OPTIONS TABLE
-
-The `storage.options` table supports the following options:
-
-**additionalimagestores**=[]
-  Paths to additional container image stores. Usually these are read-only and stored on remote network shares.
-
-**size**=""
-  Maximum size of a container image.  Default is 10GB.  This flag can be used to set quota
-  on the size of container images.
-
-**override_kernel_check**=""
-  Tell storage drivers to ignore kernel version checks.  Some storage drivers assume that if a kernel is too
-  old, the driver is not supported.  But for kernels that have had the drivers backported, this flag
-  allows users to override the checks.
-
-# HISTORY
-May 2017, Originally compiled by Dan Walsh <dwalsh@redhat.com>
-Format copied from crio.conf man page created by Aleksa Sarai <asarai@suse.de>

contrib/storage.conf

@@ -1,28 +0,0 @@
-# storage.conf is the configuration file for all tools
-# that share the containers/storage libraries
-# See man 5 containers-storage.conf for more information
-
-# The "container storage" table contains all of the server options.
-[storage]
-
-# Default Storage Driver
-driver = "overlay"
-
-# Temporary storage location
-runroot = "/var/run/containers/storage"
-
-# Primary read-write location of container storage
-graphroot = "/var/lib/containers/storage"
-
-[storage.options]
-# AdditionalImageStores is used to pass paths to additional read-only image stores
-# Must be comma separated list.
-additionalimagestores = [
-]
-
-# Size is used to set a maximum size of the container image.  Only supported by
-# certain container storage drivers (currently overlay, zfs, vfs, btrfs)
-size = ""
-
-# OverrideKernelCheck tells the driver to ignore kernel checks based on kernel version
-override_kernel_check = "true"

default.yaml

@@ -12,8 +12,8 @@
 
 # This is the default signature write location for docker registries.
 default-docker:
-#  sigstore: file:///var/lib/atomic/sigstore
-  sigstore-staging: file:///var/lib/atomic/sigstore
+#  sigstore: file:///var/lib/containers/sigstore
+  sigstore-staging: file:///var/lib/containers/sigstore
 
 # The 'docker' indicator here is the start of the configuration
 # for docker registries.

docs/skopeo-copy.1.md

@@ -17,11 +17,25 @@ Uses the system's trust policy to validate images, rejects images not trusted by
 
 ## OPTIONS
 
+**--all**
+
+If _source-image_ refers to a list of images, instead of copying just the image which matches the current OS and
+architecture (subject to the use of the global --override-os and --override-arch options), attempt to copy all of
+the images in the list, and the list itself.
+
 **--authfile** _path_
 
 Path of the authentication file. Default is ${XDG_RUNTIME\_DIR}/containers/auth.json, which is set using `podman login`.
 If the authorization state is not found there, $HOME/.docker/config.json is checked, which is set using `docker login`.
 
+**--src-authfile** _path_
+
+Path of the authentication file for the source registry. Uses path given by `--authfile`, if not provided.
+
+**--dest-authfile** _path_
+
+Path of the authentication file for the destination registry. Uses path given by `--authfile`, if not provided.
+
 **--format, -f** _manifest-type_ Manifest type (oci, v2s1, or v2s2) to use when saving image to directory using the 'dir:' transport (default is manifest type of source)
 
 **--quiet, -q** suppress output information when copying images
@@ -30,19 +44,27 @@ If the authorization state is not found there, $HOME/.docker/config.json is chec
 
 **--sign-by=**_key-id_ add a signature using that key ID for an image name corresponding to _destination-image_
 
+**--encryption-key** _Key_ a reference prefixed with the encryption protocol to use. The supported protocols are JWE, PGP and PKCS7. For instance, jwe:/path/to/key.pem or pgp:admin@example.com or pkcs7:/path/to/x509-file. This feature is still *experimental*.
+
+**--decryption-key** _Key_ a reference required to perform decryption of container images. This should point to files which represent keys and/or certificates that can be used for decryption. Decryption will be tried with all keys. This feature is still *experimental*.
+
 **--src-creds** _username[:password]_ for accessing the source registry
 
 **--dest-compress** _bool-value_ Compress tarball image layers when saving to directory using the 'dir' transport. (default is same compression type as source)
 
+**--dest-oci-accept-uncompressed-layers** _bool-value_ Allow uncompressed image layers when saving to an OCI image using the 'oci' transport. (default is to compress things that aren't compressed)
+
 **--dest-creds** _username[:password]_ for accessing the destination registry
 
 **--src-cert-dir** _path_ Use certificates at _path_ (*.crt, *.cert, *.key) to connect to the source registry or daemon
 
+**--src-no-creds** _bool-value_ Access the registry anonymously.
+
 **--src-tls-verify** _bool-value_ Require HTTPS and verify certificates when talking to container source registry or daemon (defaults to true)
 
 **--dest-cert-dir** _path_ Use certificates at _path_ (*.crt, *.cert, *.key) to connect to the destination registry or daemon
 
-**--dest-ostree-tmp-dir** _path_ Directory to use for OSTree temporary files.
+**--dest-no-creds** _bool-value_  Access the registry anonymously.
 
 **--dest-tls-verify** _bool-value_ Require HTTPS and verify certificates when talking to container destination registry or daemon (defaults to true)
 
@@ -52,6 +74,10 @@ If the authorization state is not found there, $HOME/.docker/config.json is chec
 
 Existing signatures, if any, are preserved as well.
 
+**--dest-compress-format** _format_ Specifies the compression format to use.  Supported values are: `gzip` and `zstd`.
+
+**--dest-compress-level** _format_ Specifies the compression level to use.  The value is specific to the compression algorithm used, e.g. for zstd the accepted values are in the range 1-20 (inclusive), while for gzip it is 1-9 (inclusive).
+
 ## EXAMPLES
 
 To copy the layers of the docker.io busybox image to a local directory:
@@ -67,9 +93,33 @@ $ ls /var/lib/images/busybox/*
 To copy and sign an image:
 
 ```sh
-$ skopeo copy --sign-by dev@example.com atomic:example/busybox:streaming atomic:example/busybox:gold
+# skopeo copy --sign-by dev@example.com container-storage:example/busybox:streaming docker://example/busybox:gold
 ```
 
+To encrypt an image:
+```sh
+skopeo copy docker://docker.io/library/nginx:latest oci:local_nginx:latest
+
+openssl genrsa -out private.key 1024
+openssl rsa -in private.key -pubout > public.key
+
+skopeo  copy --encryption-key jwe:./public.key oci:local_nginx:latest oci:try-encrypt:encrypted
+```
+
+To decrypt an image:
+```sh
+skopeo copy --decryption-key ./private.key oci:try-encrypt:encrypted oci:try-decrypt:decrypted
+```
+
+To copy encrypted image without decryption:
+```sh
+skopeo copy oci:try-encrypt:encrypted oci:try-encrypt-copy:encrypted
+```
+
+To decrypt an image that requires more than one key:
+```sh
+skopeo copy --decryption-key ./private1.key --decryption-key ./private2.key --decryption-key ./private3.key oci:try-encrypt:encrypted oci:try-decrypt:decrypted
+```
 ## SEE ALSO
 skopeo(1), podman-login(1), docker-login(1)
 

docs/skopeo-delete.1.md

@@ -1,7 +1,7 @@
 % skopeo-delete(1)
 
 ## NAME
-skopeo\-delete - Mark _image-name_ for deletion.  
+skopeo\-delete - Mark _image-name_ for deletion.
 
 ## SYNOPSIS
 **skopeo delete** _image-name_
@@ -30,6 +30,8 @@ $ docker exec -it registry /usr/bin/registry garbage-collect /etc/docker-distrib
 
 **--tls-verify** _bool-value_ Require HTTPS and verify certificates when talking to container registries (defaults to true)
 
+**--no-creds** _bool-value_ Access the registry anonymously.
+
 Additionally, the registry must allow deletions by setting `REGISTRY_STORAGE_DELETE_ENABLED=true` for the registry daemon.
 
 ## EXAMPLES

docs/skopeo-inspect.1.md

@@ -4,7 +4,7 @@
 skopeo\-inspect - Return low-level information about _image-name_ in a registry
 
 ## SYNOPSIS
-**skopeo inspect** [**--raw**] _image-name_
+**skopeo inspect** [**--raw**] [**--config**] _image-name_
 
 Return low-level information about _image-name_ in a registry
 
@@ -12,17 +12,27 @@ Return low-level information about _image-name_ in a registry
 
   _image-name_ name of image to retrieve information about
 
+  **--config** output configuration in OCI format, default is to format in JSON
+
+  _image-name_ name of image to retrieve configuration for
+
+  **--config** **--raw** output configuration in raw format
+
+  _image-name_ name of image to retrieve configuration for
+
   **--authfile** _path_
 
-  Path of the authentication file. Default is ${XDG_RUNTIME\_DIR}/containers/auth.json, which is set using `podman login`.
+  Path of the authentication file. Default is ${XDG\_RUNTIME\_DIR}/containers/auth.json, which is set using `podman login`.
   If the authorization state is not found there, $HOME/.docker/config.json is checked, which is set using `docker login`.
 
   **--creds** _username[:password]_ for accessing the registry
 
-  **--cert-dir** _path_ Use certificates at _path_ (*.crt, *.cert, *.key) to connect to the registry
+  **--cert-dir** _path_ Use certificates at _path_ (\*.crt, \*.cert, \*.key) to connect to the registry
 
   **--tls-verify** _bool-value_ Require HTTPS and verify certificates when talking to container registries (defaults to true)
 
+  **--no-creds** _bool-value_ Access the registry anonymously.
+
 ## EXAMPLES
 
 To review information for the image fedora from the docker.io registry:

docs/skopeo-sync.1.md

@@ -0,0 +1,150 @@
+% skopeo-sync(1)
+
+## NAME
+skopeo\-sync - Synchronize images between container registries and local directories.
+
+
+## SYNOPSIS
+**skopeo sync** --src _transport_ --dest _transport_ _source_ _destination_
+
+## DESCRIPTION
+Synchronize images between container registries and local directories.
+The synchronization is achieved by copying all the images found at _source_ to _destination_.
+
+Useful to synchronize a local container registry mirror, and to to populate registries running inside of air-gapped environments.
+
+Differently from other skopeo commands, skopeo sync requires both source and destination transports to be specified separately from _source_ and _destination_.
+One of the problems of prefixing a destination with its transport is that, the registry `docker://hostname:port` would be wrongly interpreted as an image reference at a non-fully qualified registry, with `hostname` and `port` the image name and tag.
+
+Available _source_ transports:
+ - _docker_ (i.e. `--src docker`): _source_ is a repository hosted on a container registry (e.g.: `registry.example.com/busybox`).
+ If no image tag is specified, skopeo sync copies all the tags found in that repository.
+ - _dir_ (i.e. `--src dir`): _source_ is a local directory path (e.g.: `/media/usb/`). Refer to skopeo(1) **dir:**_path_ for the local image format.
+ - _yaml_ (i.e. `--src yaml`): _source_ is local YAML file path.
+ The YAML file should specify the list of images copied from different container registries (local directories are not supported). Refer to EXAMPLES for the file format.
+
+Available _destination_ transports:
+ - _docker_ (i.e. `--dest docker`): _destination_ is a container registry (e.g.: `my-registry.local.lan`).
+ - _dir_ (i.e. `--dest dir`): _destination_ is a local directory path (e.g.: `/media/usb/`).
+ One directory per source 'image:tag' is created for each copied image.
+
+When the `--scoped` option is specified, images are prefixed with the source image path so that multiple images with the same
+name can be stored at _destination_.
+
+## OPTIONS
+**--authfile** _path_
+
+Path of the authentication file. Default is ${XDG\_RUNTIME\_DIR}/containers/auth.json, which is set using `podman login`.
+If the authorization state is not found there, $HOME/.docker/config.json is checked, which is set using `docker login`.
+
+**--src-authfile** _path_
+
+Path of the authentication file for the source registry. Uses path given by `--authfile`, if not provided.
+
+**--dest-authfile** _path_
+
+Path of the authentication file for the destination registry. Uses path given by `--authfile`, if not provided.
+
+**--src** _transport_ Transport for the source repository.
+
+**--dest** _transport_ Destination transport.
+
+**--scoped** Prefix images with the source image path, so that multiple images with the same name can be stored at _destination_.
+
+**--remove-signatures** Do not copy signatures, if any, from _source-image_. This is necessary when copying a signed image to a destination which does not support signatures.
+
+**--sign-by=**_key-id_ Add a signature using that key ID for an image name corresponding to _destination-image_.
+
+**--src-creds** _username[:password]_ for accessing the source registry.
+
+**--dest-creds** _username[:password]_ for accessing the destination registry.
+
+**--src-cert-dir** _path_ Use certificates (*.crt, *.cert, *.key) at _path_ to connect to the source registry or daemon.
+
+**--src-no-creds** _bool-value_ Access the registry anonymously.
+
+**--src-tls-verify** _bool-value_ Require HTTPS and verify certificates when talking to a container source registry or daemon (defaults to true).
+
+**--dest-cert-dir** _path_ Use certificates (*.crt, *.cert, *.key) at _path_ to connect to the destination registry or daemon.
+
+**--dest-no-creds** _bool-value_  Access the registry anonymously.
+
+**--dest-tls-verify** _bool-value_ Require HTTPS and verify certificates when talking to a container destination registry or daemon (defaults to true).
+
+## EXAMPLES
+
+### Synchronizing to a local directory
+```
+$ skopeo sync --src docker --dest dir registry.example.com/busybox /media/usb
+```
+Images are located at:
+```
+/media/usb/busybox:1-glibc
+/media/usb/busybox:1-musl
+/media/usb/busybox:1-ubuntu
+...
+/media/usb/busybox:latest
+```
+
+### Synchronizing to a local directory, scoped
+```
+$ skopeo sync --src docker --dest dir --scoped registry.example.com/busybox /media/usb
+```
+Images are located at:
+```
+/media/usb/registry.example.com/busybox:1-glibc
+/media/usb/registry.example.com/busybox:1-musl
+/media/usb/registry.example.com/busybox:1-ubuntu
+...
+/media/usb/registry.example.com/busybox:latest
+```
+
+### Synchronizing to a container registry
+```
+skopeo sync --src docker --dest docker registry.example.com/busybox my-registry.local.lan
+```
+Destination registry content:
+```
+REPO                           TAGS
+registry.example.com/busybox   1-glibc, 1-musl, 1-ubuntu, ..., latest
+```
+
+### YAML file content (used _source_ for `**--src yaml**`)
+
+```yaml
+registry.example.com:
+    images:
+        busybox: []
+        redis:
+            - "1.0"
+            - "2.0"
+    credentials:
+        username: john
+        password: this is a secret
+    tls-verify: true
+    cert-dir: /home/john/certs
+quay.io:
+    tls-verify: false
+    images:
+        coreos/etcd:
+            - latest
+```
+
+This will copy the following images:
+- Repository `registry.example.com/busybox`: all images, as no tags are specified.
+- Repository `registry.example.com/redis`: images tagged "1.0" and "2.0".
+- Repository `quay.io/coreos/etcd`: images tagged "latest".
+
+For the registry `registry.example.com`, the "john"/"this is a secret" credentials are used, with server TLS certificates located at `/home/john/certs`.
+
+TLS verification is normally enabled, and it can be disabled setting `tls-verify` to `true`.
+In the above example, TLS verification is enabled for `reigstry.example.com`, while is
+disabled for `quay.io`.
+
+## SEE ALSO
+skopeo(1), podman-login(1), docker-login(1)
+
+## AUTHORS
+
+Flavio Castelli <fcastelli@suse.com>, Marco Vedovati <mvedovati@suse.com>
+

docs/skopeo.1.md

@@ -44,9 +44,6 @@ Most commands refer to container images, using a _transport_`:`_details_ format.
   **oci:**_path_**:**_tag_
   An image _tag_ in a directory compliant with "Open Container Image Layout Specification" at _path_.
 
-  **ostree:**_image_[**@**_/absolute/repo/path_]
-  An image in local OSTree repository.  _/absolute/repo/path_ defaults to _/ostree/repo_.
-
 ## OPTIONS
 
   **--debug** enable debug output
@@ -76,16 +73,17 @@ Most commands refer to container images, using a _transport_`:`_details_ format.
 | [skopeo-inspect(1)](skopeo-inspect.1.md)  | Return low-level information about image-name in a registry.                   |
 | [skopeo-manifest-digest(1)](skopeo-manifest-digest.1.md)    | Compute a manifest digest of manifest-file and write it to standard output.|
 | [skopeo-standalone-sign(1)](skopeo-standalone-sign.1.md)    | Sign an image.                                               |
-| [skopeo-standalone-verify(1)](skopeo-standalone-verify.1.md)| Verity an image.                                             |
+| [skopeo-standalone-verify(1)](skopeo-standalone-verify.1.md)| Verify an image.                                             |
+| [skopeo-sync(1)](skopeo-sync.1.md)| Copy images from one or more repositories to a user specified destination.             |
 
 ## FILES
   **/etc/containers/policy.json**
   Default trust policy file, if **--policy** is not specified.
-  The policy format is documented in https://github.com/containers/image/blob/master/docs/policy.json.md .
+  The policy format is documented in https://github.com/containers/image/blob/master/docs/containers-policy.json.5.md .
 
   **/etc/containers/registries.d**
   Default directory containing registry configuration, if **--registries.d** is not specified.
-  The contents of this directory are documented in https://github.com/containers/image/blob/master/docs/registries.d.md .
+  The contents of this directory are documented in https://github.com/containers/image/blob/master/docs/containers-policy.json.5.md .
 
 ## SEE ALSO
 podman-login(1), docker-login(1)

go.mod

@@ -0,0 +1,27 @@
+module github.com/containers/skopeo
+
+go 1.12
+
+require (
+	github.com/containers/buildah v1.13.1 // indirect
+	github.com/containers/common v0.1.4
+	github.com/containers/image/v5 v5.2.1
+	github.com/containers/ocicrypt v0.0.0-20190930154801-b87a4a69c741
+	github.com/containers/storage v1.15.8
+	github.com/docker/docker v1.4.2-0.20191101170500-ac7306503d23
+	github.com/dsnet/compress v0.0.1 // indirect
+	github.com/go-check/check v0.0.0-20180628173108-788fd7840127
+	github.com/opencontainers/go-digest v1.0.0-rc1
+	github.com/opencontainers/image-spec v1.0.2-0.20190823105129-775207bd45b6
+	github.com/opencontainers/image-tools v0.0.0-20170926011501-6d941547fa1d
+	github.com/opencontainers/runtime-spec v1.0.0 // indirect
+	github.com/pkg/errors v0.9.1
+	github.com/russross/blackfriday v2.0.0+incompatible // indirect
+	github.com/sirupsen/logrus v1.4.2
+	github.com/stretchr/testify v1.4.0
+	github.com/syndtr/gocapability v0.0.0-20180916011248-d98352740cb2
+	github.com/urfave/cli v1.22.1
+	github.com/vbauerster/mpb v3.4.0+incompatible // indirect
+	go4.org v0.0.0-20190218023631-ce4c26f7be8e // indirect
+	gopkg.in/yaml.v2 v2.2.8
+)

go.sum

@@ -0,0 +1,593 @@
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hack/make.sh

@@ -57,7 +57,15 @@ DEFAULT_BUNDLES=(
 	test-integration
 )
 
-TESTFLAGS+=" -test.timeout=10m"
+TESTFLAGS+=" -test.timeout=15m"
+
+# Go module support: set `-mod=vendor` to use the vendored sources
+# See also the top-level Makefile.
+mod_vendor=
+if go help mod >/dev/null 2>&1; then
+  export GO111MODULE=on
+  mod_vendor='-mod=vendor'
+fi
 
 # If $TESTFLAGS is set in the environment, it is passed as extra arguments to 'go test'.
 # You can use this to select certain tests to run, eg.
@@ -72,10 +80,10 @@ TESTFLAGS+=" -test.timeout=10m"
 go_test_dir() {
 	dir=$1
 	(
-		echo '+ go test' $TESTFLAGS ${BUILDTAGS:+-tags "$BUILDTAGS"} "${SKOPEO_PKG}${dir#.}"
+		echo '+ go test' $mod_vendor $TESTFLAGS ${BUILDTAGS:+-tags "$BUILDTAGS"} "${SKOPEO_PKG}${dir#.}"
 		cd "$dir"
 		export DEST="$ABS_DEST" # we're in a subshell, so this is safe -- our integration-cli tests need DEST, and "cd" screws it up
-		go test $TESTFLAGS ${BUILDTAGS:+-tags "$BUILDTAGS"}
+		go test $mod_vendor $TESTFLAGS ${BUILDTAGS:+-tags "$BUILDTAGS"}
 	)
 }
 

hack/make/test-integration

@@ -10,6 +10,5 @@ bundle_test_integration() {
 (
 	make binary-local ${BUILDTAGS:+BUILDTAGS="$BUILDTAGS"}
 	make install
-	export GO15VENDOREXPERIMENT=1
 	bundle_test_integration
 ) 2>&1

hack/make/test-system

@@ -0,0 +1,18 @@
+#!/bin/bash
+set -e
+
+# Before running podman for the first time, make sure
+# to set storage to vfs (not overlay): podman-in-podman
+# doesn't work with overlay. And, disable mountopt,
+# which causes error with vfs.
+sed -i \
+    -e 's/^driver\s*=.*/driver = "vfs"/' \
+    -e 's/^mountopt/#mountopt/' \
+    /etc/containers/storage.conf
+
+# Build skopeo, install into /usr/bin
+make binary-local ${BUILDTAGS:+BUILDTAGS="$BUILDTAGS"}
+make install
+
+# Run tests
+SKOPEO_BINARY=/usr/bin/skopeo bats --tap systemtest

hack/make/validate-vet

@@ -1,6 +1,6 @@
 #!/bin/bash
 
-errors=$(go vet $(go list -e ./... | grep -v "$SKOPEO_PKG"/vendor))
+errors=$(go vet $mod_vendor $(go list $mod_vendor -e ./...))
 
 if [ -z "$errors" ]; then
 	echo 'Congratulations!  All Go source files have been vetted.'

hack/ostree_tag.sh

@@ -1,6 +0,0 @@
-#!/bin/bash
-if pkg-config ostree-1 2> /dev/null ; then
-	echo ostree
-else
-	echo containers_image_ostree_stub
-fi

hack/travis_osx.sh

@@ -9,7 +9,7 @@ mkdir -vp ${_containers}
 ln -vsf $(pwd) ${_containers}/skopeo
 
 go version
-go get -u github.com/cpuguy83/go-md2man golang.org/x/lint/golint
+GO111MODULE=off go get -u github.com/cpuguy83/go-md2man golang.org/x/lint/golint
 
 cd ${_containers}/skopeo
 make validate-local test-unit-local binary-local

integration/blocked_test.go

@@ -0,0 +1,34 @@
+package main
+
+import (
+	"github.com/go-check/check"
+)
+
+const blockedRegistriesConf = "./fixtures/blocked-registries.conf"
+const blockedErrorRegex = `.*registry registry-blocked.com is blocked in .*`
+
+func (s *SkopeoSuite) TestCopyBlockedSource(c *check.C) {
+	assertSkopeoFails(c, blockedErrorRegex,
+		"--registries-conf", blockedRegistriesConf, "copy",
+		"docker://registry-blocked.com/image:test",
+		"docker://registry-unblocked.com/image:test")
+}
+
+func (s *SkopeoSuite) TestCopyBlockedDestination(c *check.C) {
+	assertSkopeoFails(c, blockedErrorRegex,
+		"--registries-conf", blockedRegistriesConf, "copy",
+		"docker://registry-unblocked.com/image:test",
+		"docker://registry-blocked.com/image:test")
+}
+
+func (s *SkopeoSuite) TestInspectBlocked(c *check.C) {
+	assertSkopeoFails(c, blockedErrorRegex,
+		"--registries-conf", blockedRegistriesConf, "inspect",
+		"docker://registry-blocked.com/image:test")
+}
+
+func (s *SkopeoSuite) TestDeleteBlocked(c *check.C) {
+	assertSkopeoFails(c, blockedErrorRegex,
+		"--registries-conf", blockedRegistriesConf, "delete",
+		"docker://registry-blocked.com/image:test")
+}

integration/check_test.go

@@ -87,3 +87,7 @@ func (s *SkopeoSuite) TestNoNeedAuthToPrivateRegistryV2ImageNotFound(c *check.C)
 	wanted = ".*unauthorized: authentication required.*"
 	c.Assert(string(out), check.Not(check.Matches), "(?s)"+wanted) // (?s) : '.' will also match newlines
 }
+
+func (s *SkopeoSuite) TestInspectFailsWhenReferenceIsInvalid(c *check.C) {
+	assertSkopeoFails(c, `.*Invalid image name.*`, "inspect", "unknown")
+}

integration/copy_test.go

@@ -1,6 +1,9 @@
 package main
 
 import (
+	"crypto/rand"
+	"crypto/rsa"
+	"crypto/x509"
 	"encoding/json"
 	"fmt"
 	"io/ioutil"
@@ -11,10 +14,11 @@ import (
 	"path/filepath"
 	"strings"
 
-	"github.com/containers/image/manifest"
-	"github.com/containers/image/signature"
+	"github.com/containers/image/v5/manifest"
+	"github.com/containers/image/v5/signature"
+	"github.com/containers/image/v5/types"
 	"github.com/go-check/check"
-	"github.com/opencontainers/go-digest"
+	digest "github.com/opencontainers/go-digest"
 	imgspecv1 "github.com/opencontainers/image-spec/specs-go/v1"
 	"github.com/opencontainers/image-tools/image"
 )
@@ -26,6 +30,7 @@ func init() {
 const (
 	v2DockerRegistryURL   = "localhost:5555" // Update also policy.json
 	v2s1DockerRegistryURL = "localhost:5556"
+	knownWindowsOnlyImage = "docker://mcr.microsoft.com/windows/nanoserver:1909"
 )
 
 type CopySuite struct {
@@ -64,7 +69,7 @@ func (s *CopySuite) SetUpSuite(c *check.C) {
 	os.Setenv("GNUPGHOME", s.gpgHome)
 
 	for _, key := range []string{"personal", "official"} {
-		batchInput := fmt.Sprintf("Key-Type: RSA\nName-Real: Test key - %s\nName-email: %s@example.com\n%%commit\n",
+		batchInput := fmt.Sprintf("Key-Type: RSA\nName-Real: Test key - %s\nName-email: %s@example.com\n%%no-protection\n%%commit\n",
 			key, key)
 		runCommandWithInput(c, batchInput, gpgBinary, "--batch", "--gen-key")
 
@@ -97,9 +102,382 @@ func (s *CopySuite) TestCopyWithManifestList(c *check.C) {
 	assertSkopeoSucceeds(c, "", "copy", "docker://estesp/busybox:latest", "dir:"+dir)
 }
 
+func (s *CopySuite) TestCopyAllWithManifestList(c *check.C) {
+	dir, err := ioutil.TempDir("", "copy-all-manifest-list")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(dir)
+	assertSkopeoSucceeds(c, "", "copy", "--all", "docker://estesp/busybox:latest", "dir:"+dir)
+}
+
+func (s *CopySuite) TestCopyAllWithManifestListRoundTrip(c *check.C) {
+	oci1, err := ioutil.TempDir("", "copy-all-manifest-list-oci")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(oci1)
+	oci2, err := ioutil.TempDir("", "copy-all-manifest-list-oci")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(oci2)
+	dir1, err := ioutil.TempDir("", "copy-all-manifest-list-dir")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(dir1)
+	dir2, err := ioutil.TempDir("", "copy-all-manifest-list-dir")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(dir2)
+	assertSkopeoSucceeds(c, "", "copy", "--all", "docker://estesp/busybox:latest", "oci:"+oci1)
+	assertSkopeoSucceeds(c, "", "copy", "--all", "oci:"+oci1, "dir:"+dir1)
+	assertSkopeoSucceeds(c, "", "copy", "--all", "dir:"+dir1, "oci:"+oci2)
+	assertSkopeoSucceeds(c, "", "copy", "--all", "oci:"+oci2, "dir:"+dir2)
+	assertDirImagesAreEqual(c, dir1, dir2)
+	out := combinedOutputOfCommand(c, "diff", "-urN", oci1, oci2)
+	c.Assert(out, check.Equals, "")
+}
+
+func (s *CopySuite) TestCopyAllWithManifestListConverge(c *check.C) {
+	oci1, err := ioutil.TempDir("", "copy-all-manifest-list-oci")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(oci1)
+	oci2, err := ioutil.TempDir("", "copy-all-manifest-list-oci")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(oci2)
+	dir1, err := ioutil.TempDir("", "copy-all-manifest-list-dir")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(dir1)
+	dir2, err := ioutil.TempDir("", "copy-all-manifest-list-dir")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(dir2)
+	assertSkopeoSucceeds(c, "", "copy", "--all", "docker://estesp/busybox:latest", "oci:"+oci1)
+	assertSkopeoSucceeds(c, "", "copy", "--all", "oci:"+oci1, "dir:"+dir1)
+	assertSkopeoSucceeds(c, "", "copy", "--all", "--format", "oci", "docker://estesp/busybox:latest", "dir:"+dir2)
+	assertSkopeoSucceeds(c, "", "copy", "--all", "dir:"+dir2, "oci:"+oci2)
+	assertDirImagesAreEqual(c, dir1, dir2)
+	out := combinedOutputOfCommand(c, "diff", "-urN", oci1, oci2)
+	c.Assert(out, check.Equals, "")
+}
+
+func (s *CopySuite) TestCopyWithManifestListConverge(c *check.C) {
+	oci1, err := ioutil.TempDir("", "copy-all-manifest-list-oci")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(oci1)
+	oci2, err := ioutil.TempDir("", "copy-all-manifest-list-oci")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(oci2)
+	dir1, err := ioutil.TempDir("", "copy-all-manifest-list-dir")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(dir1)
+	dir2, err := ioutil.TempDir("", "copy-all-manifest-list-dir")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(dir2)
+	assertSkopeoSucceeds(c, "", "copy", "docker://estesp/busybox:latest", "oci:"+oci1)
+	assertSkopeoSucceeds(c, "", "copy", "--all", "oci:"+oci1, "dir:"+dir1)
+	assertSkopeoSucceeds(c, "", "copy", "--format", "oci", "docker://estesp/busybox:latest", "dir:"+dir2)
+	assertSkopeoSucceeds(c, "", "copy", "--all", "dir:"+dir2, "oci:"+oci2)
+	assertDirImagesAreEqual(c, dir1, dir2)
+	out := combinedOutputOfCommand(c, "diff", "-urN", oci1, oci2)
+	c.Assert(out, check.Equals, "")
+}
+
+func (s *CopySuite) TestCopyAllWithManifestListStorageFails(c *check.C) {
+	storage, err := ioutil.TempDir("", "copy-storage")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(storage)
+	storage = fmt.Sprintf("[vfs@%s/root+%s/runroot]", storage, storage)
+	assertSkopeoFails(c, `.*destination transport .* does not support copying multiple images as a group.*`, "copy", "--all", "docker://estesp/busybox:latest", "containers-storage:"+storage+"test")
+}
+
+func (s *CopySuite) TestCopyWithManifestListStorage(c *check.C) {
+	storage, err := ioutil.TempDir("", "copy-manifest-list-storage")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(storage)
+	storage = fmt.Sprintf("[vfs@%s/root+%s/runroot]", storage, storage)
+	dir1, err := ioutil.TempDir("", "copy-manifest-list-storage-dir")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(dir1)
+	dir2, err := ioutil.TempDir("", "copy-manifest-list-storage-dir")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(dir2)
+	assertSkopeoSucceeds(c, "", "copy", "docker://estesp/busybox:latest", "containers-storage:"+storage+"test")
+	assertSkopeoSucceeds(c, "", "copy", "docker://estesp/busybox:latest", "dir:"+dir1)
+	assertSkopeoSucceeds(c, "", "copy", "containers-storage:"+storage+"test", "dir:"+dir2)
+	runDecompressDirs(c, "", dir1, dir2)
+	assertDirImagesAreEqual(c, dir1, dir2)
+}
+
+func (s *CopySuite) TestCopyWithManifestListStorageMultiple(c *check.C) {
+	storage, err := ioutil.TempDir("", "copy-manifest-list-storage-multiple")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(storage)
+	storage = fmt.Sprintf("[vfs@%s/root+%s/runroot]", storage, storage)
+	dir1, err := ioutil.TempDir("", "copy-manifest-list-storage-multiple-dir")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(dir1)
+	dir2, err := ioutil.TempDir("", "copy-manifest-list-storage-multiple-dir")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(dir2)
+	assertSkopeoSucceeds(c, "", "--override-arch", "amd64", "copy", "docker://estesp/busybox:latest", "containers-storage:"+storage+"test")
+	assertSkopeoSucceeds(c, "", "--override-arch", "arm64", "copy", "docker://estesp/busybox:latest", "containers-storage:"+storage+"test")
+	assertSkopeoSucceeds(c, "", "--override-arch", "arm64", "copy", "docker://estesp/busybox:latest", "dir:"+dir1)
+	assertSkopeoSucceeds(c, "", "copy", "containers-storage:"+storage+"test", "dir:"+dir2)
+	runDecompressDirs(c, "", dir1, dir2)
+	assertDirImagesAreEqual(c, dir1, dir2)
+}
+
+func (s *CopySuite) TestCopyWithManifestListDigest(c *check.C) {
+	dir1, err := ioutil.TempDir("", "copy-manifest-list-digest-dir")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(dir1)
+	dir2, err := ioutil.TempDir("", "copy-manifest-list-digest-dir")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(dir2)
+	oci1, err := ioutil.TempDir("", "copy-manifest-list-digest-oci")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(oci1)
+	oci2, err := ioutil.TempDir("", "copy-manifest-list-digest-oci")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(oci2)
+	m := combinedOutputOfCommand(c, skopeoBinary, "inspect", "--raw", "docker://estesp/busybox:latest")
+	manifestDigest, err := manifest.Digest([]byte(m))
+	c.Assert(err, check.IsNil)
+	digest := manifestDigest.String()
+	assertSkopeoSucceeds(c, "", "copy", "docker://estesp/busybox@"+digest, "dir:"+dir1)
+	assertSkopeoSucceeds(c, "", "copy", "--all", "docker://estesp/busybox@"+digest, "dir:"+dir2)
+	assertSkopeoSucceeds(c, "", "copy", "dir:"+dir1, "oci:"+oci1)
+	assertSkopeoSucceeds(c, "", "copy", "dir:"+dir2, "oci:"+oci2)
+	out := combinedOutputOfCommand(c, "diff", "-urN", oci1, oci2)
+	c.Assert(out, check.Equals, "")
+}
+
+func (s *CopySuite) TestCopyWithManifestListStorageDigest(c *check.C) {
+	storage, err := ioutil.TempDir("", "copy-manifest-list-storage-digest")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(storage)
+	storage = fmt.Sprintf("[vfs@%s/root+%s/runroot]", storage, storage)
+	dir1, err := ioutil.TempDir("", "copy-manifest-list-storage-digest-dir")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(dir1)
+	dir2, err := ioutil.TempDir("", "copy-manifest-list-storage-digest-dir")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(dir2)
+	m := combinedOutputOfCommand(c, skopeoBinary, "inspect", "--raw", "docker://estesp/busybox:latest")
+	manifestDigest, err := manifest.Digest([]byte(m))
+	c.Assert(err, check.IsNil)
+	digest := manifestDigest.String()
+	assertSkopeoSucceeds(c, "", "copy", "docker://estesp/busybox@"+digest, "containers-storage:"+storage+"test@"+digest)
+	assertSkopeoSucceeds(c, "", "copy", "containers-storage:"+storage+"test@"+digest, "dir:"+dir1)
+	assertSkopeoSucceeds(c, "", "copy", "docker://estesp/busybox@"+digest, "dir:"+dir2)
+	runDecompressDirs(c, "", dir1, dir2)
+	assertDirImagesAreEqual(c, dir1, dir2)
+}
+
+func (s *CopySuite) TestCopyWithManifestListStorageDigestMultipleArches(c *check.C) {
+	storage, err := ioutil.TempDir("", "copy-manifest-list-storage-digest")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(storage)
+	storage = fmt.Sprintf("[vfs@%s/root+%s/runroot]", storage, storage)
+	dir1, err := ioutil.TempDir("", "copy-manifest-list-storage-digest-dir")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(dir1)
+	dir2, err := ioutil.TempDir("", "copy-manifest-list-storage-digest-dir")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(dir2)
+	m := combinedOutputOfCommand(c, skopeoBinary, "inspect", "--raw", "docker://estesp/busybox:latest")
+	manifestDigest, err := manifest.Digest([]byte(m))
+	c.Assert(err, check.IsNil)
+	digest := manifestDigest.String()
+	assertSkopeoSucceeds(c, "", "copy", "docker://estesp/busybox@"+digest, "containers-storage:"+storage+"test@"+digest)
+	assertSkopeoSucceeds(c, "", "copy", "containers-storage:"+storage+"test@"+digest, "dir:"+dir1)
+	assertSkopeoSucceeds(c, "", "copy", "docker://estesp/busybox@"+digest, "dir:"+dir2)
+	runDecompressDirs(c, "", dir1, dir2)
+	assertDirImagesAreEqual(c, dir1, dir2)
+}
+
+func (s *CopySuite) TestCopyWithManifestListStorageDigestMultipleArchesBothUseListDigest(c *check.C) {
+	storage, err := ioutil.TempDir("", "copy-manifest-list-storage-digest-multiple-arches-both")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(storage)
+	storage = fmt.Sprintf("[vfs@%s/root+%s/runroot]", storage, storage)
+	m := combinedOutputOfCommand(c, skopeoBinary, "inspect", "--raw", "docker://estesp/busybox:latest")
+	manifestDigest, err := manifest.Digest([]byte(m))
+	c.Assert(err, check.IsNil)
+	digest := manifestDigest.String()
+	_, err = manifest.ListFromBlob([]byte(m), manifest.GuessMIMEType([]byte(m)))
+	c.Assert(err, check.IsNil)
+	assertSkopeoSucceeds(c, "", "--override-arch=amd64", "copy", "docker://estesp/busybox@"+digest, "containers-storage:"+storage+"test@"+digest)
+	assertSkopeoSucceeds(c, "", "--override-arch=arm64", "copy", "docker://estesp/busybox@"+digest, "containers-storage:"+storage+"test@"+digest)
+	assertSkopeoFails(c, `.*error reading manifest for image instance.*does not exist.*`, "--override-arch=amd64", "inspect", "containers-storage:"+storage+"test@"+digest)
+	assertSkopeoFails(c, `.*error reading manifest for image instance.*does not exist.*`, "--override-arch=amd64", "inspect", "--config", "containers-storage:"+storage+"test@"+digest)
+	i2 := combinedOutputOfCommand(c, skopeoBinary, "--override-arch=arm64", "inspect", "--config", "containers-storage:"+storage+"test@"+digest)
+	var image2 imgspecv1.Image
+	err = json.Unmarshal([]byte(i2), &image2)
+	c.Assert(err, check.IsNil)
+	c.Assert(image2.Architecture, check.Equals, "arm64")
+}
+
+func (s *CopySuite) TestCopyWithManifestListStorageDigestMultipleArchesFirstUsesListDigest(c *check.C) {
+	storage, err := ioutil.TempDir("", "copy-manifest-list-storage-digest-multiple-arches-first")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(storage)
+	storage = fmt.Sprintf("[vfs@%s/root+%s/runroot]", storage, storage)
+	m := combinedOutputOfCommand(c, skopeoBinary, "inspect", "--raw", "docker://estesp/busybox:latest")
+	manifestDigest, err := manifest.Digest([]byte(m))
+	c.Assert(err, check.IsNil)
+	digest := manifestDigest.String()
+	list, err := manifest.ListFromBlob([]byte(m), manifest.GuessMIMEType([]byte(m)))
+	c.Assert(err, check.IsNil)
+	amd64Instance, err := list.ChooseInstance(&types.SystemContext{ArchitectureChoice: "amd64"})
+	c.Assert(err, check.IsNil)
+	arm64Instance, err := list.ChooseInstance(&types.SystemContext{ArchitectureChoice: "arm64"})
+	c.Assert(err, check.IsNil)
+	assertSkopeoSucceeds(c, "", "--override-arch=amd64", "copy", "docker://estesp/busybox@"+digest, "containers-storage:"+storage+"test@"+digest)
+	assertSkopeoSucceeds(c, "", "--override-arch=arm64", "copy", "docker://estesp/busybox@"+arm64Instance.String(), "containers-storage:"+storage+"test@"+arm64Instance.String())
+	i1 := combinedOutputOfCommand(c, skopeoBinary, "--override-arch=amd64", "inspect", "--config", "containers-storage:"+storage+"test@"+digest)
+	var image1 imgspecv1.Image
+	err = json.Unmarshal([]byte(i1), &image1)
+	c.Assert(err, check.IsNil)
+	c.Assert(image1.Architecture, check.Equals, "amd64")
+	i2 := combinedOutputOfCommand(c, skopeoBinary, "--override-arch=amd64", "inspect", "--config", "containers-storage:"+storage+"test@"+amd64Instance.String())
+	var image2 imgspecv1.Image
+	err = json.Unmarshal([]byte(i2), &image2)
+	c.Assert(err, check.IsNil)
+	c.Assert(image2.Architecture, check.Equals, "amd64")
+	assertSkopeoFails(c, `.*error reading manifest for image instance.*does not exist.*`, "--override-arch=arm64", "inspect", "containers-storage:"+storage+"test@"+digest)
+	assertSkopeoFails(c, `.*error reading manifest for image instance.*does not exist.*`, "--override-arch=arm64", "inspect", "--config", "containers-storage:"+storage+"test@"+digest)
+	i3 := combinedOutputOfCommand(c, skopeoBinary, "--override-arch=arm64", "inspect", "--config", "containers-storage:"+storage+"test@"+arm64Instance.String())
+	var image3 imgspecv1.Image
+	err = json.Unmarshal([]byte(i3), &image3)
+	c.Assert(err, check.IsNil)
+	c.Assert(image3.Architecture, check.Equals, "arm64")
+}
+
+func (s *CopySuite) TestCopyWithManifestListStorageDigestMultipleArchesSecondUsesListDigest(c *check.C) {
+	storage, err := ioutil.TempDir("", "copy-manifest-list-storage-digest-multiple-arches-second")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(storage)
+	storage = fmt.Sprintf("[vfs@%s/root+%s/runroot]", storage, storage)
+	m := combinedOutputOfCommand(c, skopeoBinary, "inspect", "--raw", "docker://estesp/busybox:latest")
+	manifestDigest, err := manifest.Digest([]byte(m))
+	c.Assert(err, check.IsNil)
+	digest := manifestDigest.String()
+	list, err := manifest.ListFromBlob([]byte(m), manifest.GuessMIMEType([]byte(m)))
+	c.Assert(err, check.IsNil)
+	amd64Instance, err := list.ChooseInstance(&types.SystemContext{ArchitectureChoice: "amd64"})
+	c.Assert(err, check.IsNil)
+	arm64Instance, err := list.ChooseInstance(&types.SystemContext{ArchitectureChoice: "arm64"})
+	c.Assert(err, check.IsNil)
+	assertSkopeoSucceeds(c, "", "--override-arch=amd64", "copy", "docker://estesp/busybox@"+amd64Instance.String(), "containers-storage:"+storage+"test@"+amd64Instance.String())
+	assertSkopeoSucceeds(c, "", "--override-arch=arm64", "copy", "docker://estesp/busybox@"+digest, "containers-storage:"+storage+"test@"+digest)
+	i1 := combinedOutputOfCommand(c, skopeoBinary, "--override-arch=amd64", "inspect", "--config", "containers-storage:"+storage+"test@"+amd64Instance.String())
+	var image1 imgspecv1.Image
+	err = json.Unmarshal([]byte(i1), &image1)
+	c.Assert(err, check.IsNil)
+	c.Assert(image1.Architecture, check.Equals, "amd64")
+	assertSkopeoFails(c, `.*error reading manifest for image instance.*does not exist.*`, "--override-arch=amd64", "inspect", "containers-storage:"+storage+"test@"+digest)
+	assertSkopeoFails(c, `.*error reading manifest for image instance.*does not exist.*`, "--override-arch=amd64", "inspect", "--config", "containers-storage:"+storage+"test@"+digest)
+	i2 := combinedOutputOfCommand(c, skopeoBinary, "--override-arch=arm64", "inspect", "--config", "containers-storage:"+storage+"test@"+digest)
+	var image2 imgspecv1.Image
+	err = json.Unmarshal([]byte(i2), &image2)
+	c.Assert(err, check.IsNil)
+	c.Assert(image2.Architecture, check.Equals, "arm64")
+	i3 := combinedOutputOfCommand(c, skopeoBinary, "--override-arch=arm64", "inspect", "--config", "containers-storage:"+storage+"test@"+arm64Instance.String())
+	var image3 imgspecv1.Image
+	err = json.Unmarshal([]byte(i3), &image3)
+	c.Assert(err, check.IsNil)
+	c.Assert(image3.Architecture, check.Equals, "arm64")
+}
+
+func (s *CopySuite) TestCopyWithManifestListStorageDigestMultipleArchesThirdUsesListDigest(c *check.C) {
+	storage, err := ioutil.TempDir("", "copy-manifest-list-storage-digest-multiple-arches-third")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(storage)
+	storage = fmt.Sprintf("[vfs@%s/root+%s/runroot]", storage, storage)
+	m := combinedOutputOfCommand(c, skopeoBinary, "inspect", "--raw", "docker://estesp/busybox:latest")
+	manifestDigest, err := manifest.Digest([]byte(m))
+	c.Assert(err, check.IsNil)
+	digest := manifestDigest.String()
+	list, err := manifest.ListFromBlob([]byte(m), manifest.GuessMIMEType([]byte(m)))
+	c.Assert(err, check.IsNil)
+	amd64Instance, err := list.ChooseInstance(&types.SystemContext{ArchitectureChoice: "amd64"})
+	c.Assert(err, check.IsNil)
+	arm64Instance, err := list.ChooseInstance(&types.SystemContext{ArchitectureChoice: "arm64"})
+	c.Assert(err, check.IsNil)
+	assertSkopeoSucceeds(c, "", "--override-arch=amd64", "copy", "docker://estesp/busybox@"+amd64Instance.String(), "containers-storage:"+storage+"test@"+amd64Instance.String())
+	assertSkopeoSucceeds(c, "", "--override-arch=amd64", "copy", "docker://estesp/busybox@"+digest, "containers-storage:"+storage+"test@"+digest)
+	assertSkopeoSucceeds(c, "", "--override-arch=arm64", "copy", "docker://estesp/busybox@"+digest, "containers-storage:"+storage+"test@"+digest)
+	assertSkopeoFails(c, `.*error reading manifest for image instance.*does not exist.*`, "--override-arch=amd64", "inspect", "--config", "containers-storage:"+storage+"test@"+digest)
+	i1 := combinedOutputOfCommand(c, skopeoBinary, "--override-arch=amd64", "inspect", "--config", "containers-storage:"+storage+"test@"+amd64Instance.String())
+	var image1 imgspecv1.Image
+	err = json.Unmarshal([]byte(i1), &image1)
+	c.Assert(err, check.IsNil)
+	c.Assert(image1.Architecture, check.Equals, "amd64")
+	i2 := combinedOutputOfCommand(c, skopeoBinary, "--override-arch=arm64", "inspect", "--config", "containers-storage:"+storage+"test@"+digest)
+	var image2 imgspecv1.Image
+	err = json.Unmarshal([]byte(i2), &image2)
+	c.Assert(err, check.IsNil)
+	c.Assert(image2.Architecture, check.Equals, "arm64")
+	i3 := combinedOutputOfCommand(c, skopeoBinary, "--override-arch=arm64", "inspect", "--config", "containers-storage:"+storage+"test@"+arm64Instance.String())
+	var image3 imgspecv1.Image
+	err = json.Unmarshal([]byte(i3), &image3)
+	c.Assert(err, check.IsNil)
+	c.Assert(image3.Architecture, check.Equals, "arm64")
+}
+
+func (s *CopySuite) TestCopyWithManifestListStorageDigestMultipleArchesTagAndDigest(c *check.C) {
+	storage, err := ioutil.TempDir("", "copy-manifest-list-storage-digest-multiple-arches-tag-digest")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(storage)
+	storage = fmt.Sprintf("[vfs@%s/root+%s/runroot]", storage, storage)
+	m := combinedOutputOfCommand(c, skopeoBinary, "inspect", "--raw", "docker://estesp/busybox:latest")
+	manifestDigest, err := manifest.Digest([]byte(m))
+	c.Assert(err, check.IsNil)
+	digest := manifestDigest.String()
+	list, err := manifest.ListFromBlob([]byte(m), manifest.GuessMIMEType([]byte(m)))
+	c.Assert(err, check.IsNil)
+	amd64Instance, err := list.ChooseInstance(&types.SystemContext{ArchitectureChoice: "amd64"})
+	c.Assert(err, check.IsNil)
+	arm64Instance, err := list.ChooseInstance(&types.SystemContext{ArchitectureChoice: "arm64"})
+	c.Assert(err, check.IsNil)
+	assertSkopeoSucceeds(c, "", "--override-arch=amd64", "copy", "docker://estesp/busybox:latest", "containers-storage:"+storage+"test:latest")
+	assertSkopeoSucceeds(c, "", "--override-arch=arm64", "copy", "docker://estesp/busybox@"+digest, "containers-storage:"+storage+"test@"+digest)
+	assertSkopeoFails(c, `.*error reading manifest for image instance.*does not exist.*`, "--override-arch=amd64", "inspect", "--config", "containers-storage:"+storage+"test@"+digest)
+	i1 := combinedOutputOfCommand(c, skopeoBinary, "--override-arch=arm64", "inspect", "--config", "containers-storage:"+storage+"test:latest")
+	var image1 imgspecv1.Image
+	err = json.Unmarshal([]byte(i1), &image1)
+	c.Assert(err, check.IsNil)
+	c.Assert(image1.Architecture, check.Equals, "amd64")
+	i2 := combinedOutputOfCommand(c, skopeoBinary, "--override-arch=amd64", "inspect", "--config", "containers-storage:"+storage+"test@"+amd64Instance.String())
+	var image2 imgspecv1.Image
+	err = json.Unmarshal([]byte(i2), &image2)
+	c.Assert(err, check.IsNil)
+	c.Assert(image2.Architecture, check.Equals, "amd64")
+	i3 := combinedOutputOfCommand(c, skopeoBinary, "--override-arch=amd64", "inspect", "--config", "containers-storage:"+storage+"test:latest")
+	var image3 imgspecv1.Image
+	err = json.Unmarshal([]byte(i3), &image3)
+	c.Assert(err, check.IsNil)
+	c.Assert(image3.Architecture, check.Equals, "amd64")
+	i4 := combinedOutputOfCommand(c, skopeoBinary, "--override-arch=arm64", "inspect", "--config", "containers-storage:"+storage+"test@"+arm64Instance.String())
+	var image4 imgspecv1.Image
+	err = json.Unmarshal([]byte(i4), &image4)
+	c.Assert(err, check.IsNil)
+	c.Assert(image4.Architecture, check.Equals, "arm64")
+	i5 := combinedOutputOfCommand(c, skopeoBinary, "--override-arch=arm64", "inspect", "--config", "containers-storage:"+storage+"test@"+digest)
+	var image5 imgspecv1.Image
+	err = json.Unmarshal([]byte(i5), &image5)
+	c.Assert(err, check.IsNil)
+	c.Assert(image5.Architecture, check.Equals, "arm64")
+}
+
 func (s *CopySuite) TestCopyFailsWhenImageOSDoesntMatchRuntimeOS(c *check.C) {
-	c.Skip("can't run this on Travis")
-	assertSkopeoFails(c, `.*image operating system "windows" cannot be used on "linux".*`, "copy", "docker://microsoft/windowsservercore", "containers-storage:test")
+	storage, err := ioutil.TempDir("", "copy-fails-image-doesnt-match-runtime")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(storage)
+	storage = fmt.Sprintf("[vfs@%s/root+%s/runroot]", storage, storage)
+	assertSkopeoFails(c, `.*no image found in manifest list for architecture .*, OS .*`, "copy", knownWindowsOnlyImage, "containers-storage:"+storage+"test")
+}
+
+func (s *CopySuite) TestCopySucceedsWhenImageDoesntMatchRuntimeButWeOverride(c *check.C) {
+	storage, err := ioutil.TempDir("", "copy-succeeds-image-doesnt-match-runtime-but-override")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(storage)
+	storage = fmt.Sprintf("[vfs@%s/root+%s/runroot]", storage, storage)
+	assertSkopeoSucceeds(c, "", "--override-os=windows", "--override-arch=amd64", "copy", knownWindowsOnlyImage, "containers-storage:"+storage+"test")
 }
 
 func (s *CopySuite) TestCopySimpleAtomicRegistry(c *check.C) {
@@ -157,7 +535,108 @@ func (s *CopySuite) TestCopySimple(c *check.C) {
 	assertSkopeoSucceeds(c, "", "copy", "docker://busybox:latest", "oci:"+ociDest)
 	_, err = os.Stat(ociDest)
 	c.Assert(err, check.IsNil)
+}
 
+func (s *CopySuite) TestCopyEncryption(c *check.C) {
+
+	originalImageDir, err := ioutil.TempDir("", "copy-1")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(originalImageDir)
+	encryptedImgDir, err := ioutil.TempDir("", "copy-2")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(encryptedImgDir)
+	decryptedImgDir, err := ioutil.TempDir("", "copy-3")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(decryptedImgDir)
+	keysDir, err := ioutil.TempDir("", "copy-4")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(keysDir)
+	undecryptedImgDir, err := ioutil.TempDir("", "copy-5")
+	defer os.RemoveAll(undecryptedImgDir)
+
+	// Create RSA key pair
+	privateKey, err := rsa.GenerateKey(rand.Reader, 4096)
+	c.Assert(err, check.IsNil)
+	publicKey := &privateKey.PublicKey
+	privateKeyBytes := x509.MarshalPKCS1PrivateKey(privateKey)
+	publicKeyBytes, err := x509.MarshalPKIXPublicKey(publicKey)
+	c.Assert(err, check.IsNil)
+	err = ioutil.WriteFile(keysDir+"/private.key", privateKeyBytes, 0644)
+	c.Assert(err, check.IsNil)
+	err = ioutil.WriteFile(keysDir+"/public.key", publicKeyBytes, 0644)
+	c.Assert(err, check.IsNil)
+
+	// We can either perform encryption or decryption on the image.
+	// This is why use should not be able to specify both encryption and decryption
+	// during copy at the same time.
+	assertSkopeoFails(c, ".*--encryption-key and --decryption-key cannot be specified together.*",
+		"copy", "--encryption-key", "jwe:"+keysDir+"/public.key", "--decryption-key", keysDir+"/private.key",
+		"oci:"+encryptedImgDir+":encrypted", "oci:"+decryptedImgDir+":decrypted")
+	assertSkopeoFails(c, ".*--encryption-key and --decryption-key cannot be specified together.*",
+		"copy", "--decryption-key", keysDir+"/private.key", "--encryption-key", "jwe:"+keysDir+"/public.key",
+		"oci:"+encryptedImgDir+":encrypted", "oci:"+decryptedImgDir+":decrypted")
+
+	// Copy a standard busybox image locally
+	assertSkopeoSucceeds(c, "", "copy", "docker://busybox", "oci:"+originalImageDir+":latest")
+
+	// Encrypt the image
+	assertSkopeoSucceeds(c, "", "copy", "--encryption-key",
+		"jwe:"+keysDir+"/public.key", "oci:"+originalImageDir+":latest", "oci:"+encryptedImgDir+":encrypted")
+
+	// An attempt to decrypt an encrypted image without a valid private key should fail
+	invalidPrivateKey, err := rsa.GenerateKey(rand.Reader, 4096)
+	c.Assert(err, check.IsNil)
+	invalidPrivateKeyBytes := x509.MarshalPKCS1PrivateKey(invalidPrivateKey)
+	err = ioutil.WriteFile(keysDir+"/invalid_private.key", invalidPrivateKeyBytes, 0644)
+	c.Assert(err, check.IsNil)
+	assertSkopeoFails(c, ".*no suitable key unwrapper found or none of the private keys could be used for decryption.*",
+		"copy", "--decryption-key", keysDir+"/invalid_private.key",
+		"oci:"+encryptedImgDir+":encrypted", "oci:"+decryptedImgDir+":decrypted")
+
+	// Copy encrypted image without decrypting it
+	assertSkopeoSucceeds(c, "", "copy", "oci:"+encryptedImgDir+":encrypted", "oci:"+undecryptedImgDir+":encrypted")
+	// Original busybox image has gzipped layers. But encrypted busybox layers should
+	// not be of gzip type
+	matchLayerBlobBinaryType(c, undecryptedImgDir+"/blobs/sha256", "application/x-gzip", false)
+
+	// Decrypt the image
+	assertSkopeoSucceeds(c, "", "copy", "--decryption-key", keysDir+"/private.key",
+		"oci:"+undecryptedImgDir+":encrypted", "oci:"+decryptedImgDir+":decrypted")
+
+	// After successful decryption we should find the gzipped layer from the
+	// busybox image
+	matchLayerBlobBinaryType(c, decryptedImgDir+"/blobs/sha256", "application/x-gzip", true)
+}
+
+func matchLayerBlobBinaryType(c *check.C, ociImageDirPath string, contentType string, shouldMatch bool) {
+	files, err := ioutil.ReadDir(ociImageDirPath)
+	c.Assert(err, check.IsNil)
+	blobFound := false
+	for _, f := range files {
+		fileContent, err := os.Open(ociImageDirPath + "/" + f.Name())
+		c.Assert(err, check.IsNil)
+		layerContentType, err := getFileContentType(fileContent)
+		c.Assert(err, check.IsNil)
+
+		if layerContentType == contentType {
+			blobFound = true
+			break
+		}
+	}
+
+	c.Assert(blobFound, check.Equals, shouldMatch)
+
+}
+
+func getFileContentType(out *os.File) (string, error) {
+	buffer := make([]byte, 512)
+	_, err := out.Read(buffer)
+	if err != nil {
+		return "", err
+	}
+	contentType := http.DetectContentType(buffer)
+
+	return contentType, nil
 }
 
 // Check whether dir: images in dir1 and dir2 are equal, ignoring schema1 signatures.
@@ -662,3 +1141,41 @@ func verifyManifestMIMEType(c *check.C, dir string, expectedMIMEType string) {
 	mimeType := manifest.GuessMIMEType(manifestBlob)
 	c.Assert(mimeType, check.Equals, expectedMIMEType)
 }
+
+const regConfFixture = "./fixtures/registries.conf"
+
+func (s *SkopeoSuite) TestSuccessCopySrcWithMirror(c *check.C) {
+	dir, err := ioutil.TempDir("", "copy-mirror")
+	c.Assert(err, check.IsNil)
+
+	assertSkopeoSucceeds(c, "", "--registries-conf="+regConfFixture, "copy",
+		"docker://mirror.invalid/busybox", "dir:"+dir)
+}
+
+func (s *SkopeoSuite) TestFailureCopySrcWithMirrorsUnavailable(c *check.C) {
+	dir, err := ioutil.TempDir("", "copy-mirror")
+	c.Assert(err, check.IsNil)
+
+	assertSkopeoFails(c, ".*no such host.*", "--registries-conf="+regConfFixture, "copy",
+		"docker://invalid.invalid/busybox", "dir:"+dir)
+}
+
+func (s *SkopeoSuite) TestSuccessCopySrcWithMirrorAndPrefix(c *check.C) {
+	dir, err := ioutil.TempDir("", "copy-mirror")
+	c.Assert(err, check.IsNil)
+
+	assertSkopeoSucceeds(c, "", "--registries-conf="+regConfFixture, "copy",
+		"docker://gcr.invalid/foo/bar/busybox", "dir:"+dir)
+}
+
+func (s *SkopeoSuite) TestFailureCopySrcWithMirrorAndPrefixUnavailable(c *check.C) {
+	dir, err := ioutil.TempDir("", "copy-mirror")
+	c.Assert(err, check.IsNil)
+
+	assertSkopeoFails(c, ".*no such host.*", "--registries-conf="+regConfFixture, "copy",
+		"docker://gcr.invalid/wrong/prefix/busybox", "dir:"+dir)
+}
+
+func (s *CopySuite) TestCopyFailsWhenReferenceIsInvalid(c *check.C) {
+	assertSkopeoFails(c, `.*Invalid image name.*`, "copy", "unknown:transport", "unknown:test")
+}

integration/decompress-dirs.sh

@@ -0,0 +1,23 @@
+#!/bin/bash -e
+# Account for differences between dir: images that are solely due to one being
+# compressed (fresh from a registry) and the other not being compressed (read
+# from storage, which decompressed it and had to reassemble the layer blobs).
+for dir in "$@" ; do
+    # Updating the manifest's blob digests may change the formatting, so
+    # use jq to get them into similar shape.
+    jq -M . "${dir}"/manifest.json > "${dir}"/manifest.json.tmp && mv "${dir}"/manifest.json.tmp "${dir}"/manifest.json
+    for candidate in "${dir}"/???????????????????????????????????????????????????????????????? ; do
+        # If a digest-identified file looks like it was compressed,
+        # decompress it, and replace its hash and size in the manifest
+        # with the values for their decompressed versions.
+        uncompressed=`zcat "${candidate}" 2> /dev/null | sha256sum | cut -c1-64`
+        if test $? -eq 0 ; then
+            if test "$uncompressed" != e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 ; then
+                zcat "${candidate}" > "${dir}"/${uncompressed}
+                sed -r -i -e "s#sha256:$(basename ${candidate})#sha256:${uncompressed}#g" "${dir}"/manifest.json
+                sed -r -i -e "s#\"size\": $(wc -c < ${candidate}),#\"size\": $(wc -c < ${dir}/${uncompressed}),#g" "${dir}"/manifest.json
+                rm -f "${candidate}"
+            fi
+        fi
+    done
+done

integration/fixtures/blocked-registries.conf

@@ -0,0 +1,6 @@
+[[registry]]
+location = "registry-unblocked.com"
+
+[[registry]]
+location = "registry-blocked.com"
+blocked = true

integration/fixtures/registries.conf

@@ -0,0 +1,28 @@
+[[registry]]
+location = "mirror.invalid"
+mirror = [
+    { location = "mirror-0.invalid" },
+    { location = "mirror-1.invalid" },
+    { location = "gcr.io/google-containers" },
+]
+
+# This entry is currently unused and exists only to ensure
+# that the mirror.invalid/busybox is not rewritten twice.
+[[registry]]
+location = "gcr.io"
+prefix = "gcr.io/google-containers"
+
+[[registry]]
+location = "invalid.invalid"
+mirror = [
+    { location = "invalid-mirror-0.invalid" },
+    { location = "invalid-mirror-1.invalid" },
+]
+
+[[registry]]
+location = "gcr.invalid"
+prefix = "gcr.invalid/foo/bar"
+mirror = [
+    { location = "wrong-mirror-0.invalid" },
+    { location = "gcr.io/google-containers" },
+]

integration/openshift.go

@@ -22,6 +22,7 @@ var adminKUBECONFIG = map[string]string{
 // running on localhost.
 type openshiftCluster struct {
 	workingDir string
+	dockerDir  string
 	processes  []*exec.Cmd // Processes to terminate on teardown; append to the end, terminate from end to the start.
 }
 
@@ -211,8 +212,8 @@ func (cluster *openshiftCluster) ocLoginToProject(c *check.C) {
 // dockerLogin simulates (docker login) to the cluster, or terminates on failure.
 // We do not run (docker login) directly, because that requires a running daemon and a docker package.
 func (cluster *openshiftCluster) dockerLogin(c *check.C) {
-	dockerDir := filepath.Join(homedir.Get(), ".docker")
-	err := os.Mkdir(dockerDir, 0700)
+	cluster.dockerDir = filepath.Join(homedir.Get(), ".docker")
+	err := os.Mkdir(cluster.dockerDir, 0700)
 	c.Assert(err, check.IsNil)
 
 	out := combinedOutputOfCommand(c, "oc", "config", "view", "-o", "json", "-o", "jsonpath={.users[*].user.token}")
@@ -226,7 +227,7 @@ func (cluster *openshiftCluster) dockerLogin(c *check.C) {
 			}`, port, authValue))
 	}
 	configJSON := `{"auths": {` + strings.Join(auths, ",") + `}}`
-	err = ioutil.WriteFile(filepath.Join(dockerDir, "config.json"), []byte(configJSON), 0600)
+	err = ioutil.WriteFile(filepath.Join(cluster.dockerDir, "config.json"), []byte(configJSON), 0600)
 	c.Assert(err, check.IsNil)
 }
 
@@ -249,4 +250,7 @@ func (cluster *openshiftCluster) tearDown(c *check.C) {
 	if cluster.workingDir != "" {
 		os.RemoveAll(cluster.workingDir)
 	}
+	if cluster.dockerDir != "" {
+		os.RemoveAll(cluster.dockerDir)
+	}
 }

integration/signing_test.go

@@ -8,7 +8,7 @@ import (
 	"os/exec"
 	"strings"
 
-	"github.com/containers/image/signature"
+	"github.com/containers/image/v5/signature"
 	"github.com/go-check/check"
 )
 
@@ -44,7 +44,7 @@ func (s *SigningSuite) SetUpSuite(c *check.C) {
 	c.Assert(err, check.IsNil)
 	os.Setenv("GNUPGHOME", s.gpgHome)
 
-	runCommandWithInput(c, "Key-Type: RSA\nName-Real: Testing user\n%commit\n", gpgBinary, "--homedir", s.gpgHome, "--batch", "--gen-key")
+	runCommandWithInput(c, "Key-Type: RSA\nName-Real: Testing user\n%no-protection\n%commit\n", gpgBinary, "--homedir", s.gpgHome, "--batch", "--gen-key")
 
 	lines, err := exec.Command(gpgBinary, "--homedir", s.gpgHome, "--with-colons", "--no-permission-warning", "--fingerprint").Output()
 	c.Assert(err, check.IsNil)

integration/sync_test.go

@@ -0,0 +1,514 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path"
+	"path/filepath"
+	"regexp"
+	"strings"
+
+	"github.com/containers/image/v5/docker"
+	"github.com/containers/image/v5/types"
+	"github.com/go-check/check"
+)
+
+func init() {
+	check.Suite(&SyncSuite{})
+}
+
+type SyncSuite struct {
+	cluster  *openshiftCluster
+	registry *testRegistryV2
+	gpgHome  string
+}
+
+func (s *SyncSuite) SetUpSuite(c *check.C) {
+	const registryAuth = false
+	const registrySchema1 = false
+
+	if os.Getenv("SKOPEO_LOCAL_TESTS") == "1" {
+		c.Log("Running tests without a container")
+		fmt.Printf("NOTE: tests requires a V2 registry at url=%s, with auth=%t, schema1=%t \n", v2DockerRegistryURL, registryAuth, registrySchema1)
+		return
+	}
+
+	if os.Getenv("SKOPEO_CONTAINER_TESTS") != "1" {
+		c.Skip("Not running in a container, refusing to affect user state")
+	}
+
+	s.cluster = startOpenshiftCluster(c) // FIXME: Set up TLS for the docker registry port instead of using "--tls-verify=false" all over the place.
+
+	for _, stream := range []string{"unsigned", "personal", "official", "naming", "cosigned", "compression", "schema1", "schema2"} {
+		isJSON := fmt.Sprintf(`{
+			"kind": "ImageStream",
+			"apiVersion": "v1",
+			"metadata": {
+			    "name": "%s"
+			},
+			"spec": {}
+		}`, stream)
+		runCommandWithInput(c, isJSON, "oc", "create", "-f", "-")
+	}
+
+	// FIXME: Set up TLS for the docker registry port instead of using "--tls-verify=false" all over the place.
+	s.registry = setupRegistryV2At(c, v2DockerRegistryURL, registryAuth, registrySchema1)
+
+	gpgHome, err := ioutil.TempDir("", "skopeo-gpg")
+	c.Assert(err, check.IsNil)
+	s.gpgHome = gpgHome
+	os.Setenv("GNUPGHOME", s.gpgHome)
+
+	for _, key := range []string{"personal", "official"} {
+		batchInput := fmt.Sprintf("Key-Type: RSA\nName-Real: Test key - %s\nName-email: %s@example.com\n%%no-protection\n%%commit\n",
+			key, key)
+		runCommandWithInput(c, batchInput, gpgBinary, "--batch", "--gen-key")
+
+		out := combinedOutputOfCommand(c, gpgBinary, "--armor", "--export", fmt.Sprintf("%s@example.com", key))
+		err := ioutil.WriteFile(filepath.Join(s.gpgHome, fmt.Sprintf("%s-pubkey.gpg", key)),
+			[]byte(out), 0600)
+		c.Assert(err, check.IsNil)
+	}
+}
+
+func (s *SyncSuite) TearDownSuite(c *check.C) {
+	if os.Getenv("SKOPEO_LOCAL_TESTS") == "1" {
+		return
+	}
+
+	if s.gpgHome != "" {
+		os.RemoveAll(s.gpgHome)
+	}
+	if s.registry != nil {
+		s.registry.Close()
+	}
+	if s.cluster != nil {
+		s.cluster.tearDown(c)
+	}
+}
+
+func (s *SyncSuite) TestDocker2DirTagged(c *check.C) {
+	tmpDir, err := ioutil.TempDir("", "skopeo-sync-test")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(tmpDir)
+
+	// FIXME: It would be nice to use one of the local Docker registries instead of neeeding an Internet connection.
+	image := "busybox:latest"
+	imageRef, err := docker.ParseReference(fmt.Sprintf("//%s", image))
+	c.Assert(err, check.IsNil)
+	imagePath := imageRef.DockerReference().String()
+
+	dir1 := path.Join(tmpDir, "dir1")
+	dir2 := path.Join(tmpDir, "dir2")
+
+	// sync docker => dir
+	assertSkopeoSucceeds(c, "", "sync", "--scoped", "--src", "docker", "--dest", "dir", image, dir1)
+	_, err = os.Stat(path.Join(dir1, imagePath, "manifest.json"))
+	c.Assert(err, check.IsNil)
+
+	// copy docker => dir
+	assertSkopeoSucceeds(c, "", "copy", "docker://"+image, "dir:"+dir2)
+	_, err = os.Stat(path.Join(dir2, "manifest.json"))
+	c.Assert(err, check.IsNil)
+
+	out := combinedOutputOfCommand(c, "diff", "-urN", path.Join(dir1, imagePath), dir2)
+	c.Assert(out, check.Equals, "")
+}
+
+func (s *SyncSuite) TestScoped(c *check.C) {
+	// FIXME: It would be nice to use one of the local Docker registries instead of neeeding an Internet connection.
+	image := "busybox:latest"
+	imageRef, err := docker.ParseReference(fmt.Sprintf("//%s", image))
+	c.Assert(err, check.IsNil)
+	imagePath := imageRef.DockerReference().String()
+
+	dir1, err := ioutil.TempDir("", "skopeo-sync-test")
+	c.Assert(err, check.IsNil)
+	assertSkopeoSucceeds(c, "", "sync", "--src", "docker", "--dest", "dir", image, dir1)
+	_, err = os.Stat(path.Join(dir1, image, "manifest.json"))
+	c.Assert(err, check.IsNil)
+
+	assertSkopeoSucceeds(c, "", "sync", "--scoped", "--src", "docker", "--dest", "dir", image, dir1)
+	_, err = os.Stat(path.Join(dir1, imagePath, "manifest.json"))
+	c.Assert(err, check.IsNil)
+
+	os.RemoveAll(dir1)
+}
+
+func (s *SyncSuite) TestDirIsNotOverwritten(c *check.C) {
+	// FIXME: It would be nice to use one of the local Docker registries instead of neeeding an Internet connection.
+	image := "busybox:latest"
+	imageRef, err := docker.ParseReference(fmt.Sprintf("//%s", image))
+	c.Assert(err, check.IsNil)
+	imagePath := imageRef.DockerReference().String()
+
+	// make a copy of the image in the local registry
+	assertSkopeoSucceeds(c, "", "copy", "--dest-tls-verify=false", "docker://"+image, "docker://"+path.Join(v2DockerRegistryURL, image))
+
+	//sync upstream image to dir, not scoped
+	dir1, err := ioutil.TempDir("", "skopeo-sync-test")
+	c.Assert(err, check.IsNil)
+	assertSkopeoSucceeds(c, "", "sync", "--src", "docker", "--dest", "dir", image, dir1)
+	_, err = os.Stat(path.Join(dir1, image, "manifest.json"))
+	c.Assert(err, check.IsNil)
+
+	//sync local registry image to dir, not scoped
+	assertSkopeoFails(c, ".*Refusing to overwrite destination directory.*", "sync", "--src-tls-verify=false", "--src", "docker", "--dest", "dir", path.Join(v2DockerRegistryURL, image), dir1)
+
+	//sync local registry image to dir, scoped
+	imageRef, err = docker.ParseReference(fmt.Sprintf("//%s", path.Join(v2DockerRegistryURL, image)))
+	c.Assert(err, check.IsNil)
+	imagePath = imageRef.DockerReference().String()
+	assertSkopeoSucceeds(c, "", "sync", "--scoped", "--src-tls-verify=false", "--src", "docker", "--dest", "dir", path.Join(v2DockerRegistryURL, image), dir1)
+	_, err = os.Stat(path.Join(dir1, imagePath, "manifest.json"))
+	c.Assert(err, check.IsNil)
+	os.RemoveAll(dir1)
+}
+
+func (s *SyncSuite) TestDocker2DirUntagged(c *check.C) {
+
+	tmpDir, err := ioutil.TempDir("", "skopeo-sync-test")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(tmpDir)
+
+	// FIXME: It would be nice to use one of the local Docker registries instead of neeeding an Internet connection.
+	image := "alpine"
+	imageRef, err := docker.ParseReference(fmt.Sprintf("//%s", image))
+	c.Assert(err, check.IsNil)
+	imagePath := imageRef.DockerReference().String()
+
+	dir1 := path.Join(tmpDir, "dir1")
+	assertSkopeoSucceeds(c, "", "sync", "--scoped", "--src", "docker", "--dest", "dir", image, dir1)
+
+	sysCtx := types.SystemContext{}
+	tags, err := docker.GetRepositoryTags(context.Background(), &sysCtx, imageRef)
+	c.Assert(err, check.IsNil)
+	c.Check(len(tags), check.Not(check.Equals), 0)
+
+	nManifests, err := filepath.Glob(path.Join(dir1, path.Dir(imagePath), "*", "manifest.json"))
+	c.Assert(err, check.IsNil)
+	c.Assert(len(nManifests), check.Equals, len(tags))
+}
+
+func (s *SyncSuite) TestYamlUntagged(c *check.C) {
+	tmpDir, err := ioutil.TempDir("", "skopeo-sync-test")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(tmpDir)
+	dir1 := path.Join(tmpDir, "dir1")
+
+	image := "alpine"
+	imageRef, err := docker.ParseReference(fmt.Sprintf("//%s", image))
+	c.Assert(err, check.IsNil)
+	imagePath := imageRef.DockerReference().Name()
+
+	sysCtx := types.SystemContext{}
+	tags, err := docker.GetRepositoryTags(context.Background(), &sysCtx, imageRef)
+	c.Assert(err, check.IsNil)
+	c.Check(len(tags), check.Not(check.Equals), 0)
+
+	yamlConfig := fmt.Sprintf(`
+docker.io:
+  images:
+    %s:
+`, image)
+
+	//sync to the local reg
+	yamlFile := path.Join(tmpDir, "registries.yaml")
+	ioutil.WriteFile(yamlFile, []byte(yamlConfig), 0644)
+	assertSkopeoSucceeds(c, "", "sync", "--scoped", "--src", "yaml", "--dest", "docker", "--dest-tls-verify=false", yamlFile, v2DockerRegistryURL)
+	// sync back from local reg to a folder
+	os.Remove(yamlFile)
+	yamlConfig = fmt.Sprintf(`
+%s:
+  tls-verify: false
+  images:
+    %s:
+
+`, v2DockerRegistryURL, imagePath)
+
+	ioutil.WriteFile(yamlFile, []byte(yamlConfig), 0644)
+	assertSkopeoSucceeds(c, "", "sync", "--scoped", "--src", "yaml", "--dest", "dir", yamlFile, dir1)
+
+	sysCtx = types.SystemContext{
+		DockerInsecureSkipTLSVerify: types.NewOptionalBool(true),
+	}
+	localTags, err := docker.GetRepositoryTags(context.Background(), &sysCtx, imageRef)
+	c.Assert(err, check.IsNil)
+	c.Check(len(localTags), check.Not(check.Equals), 0)
+	c.Assert(len(localTags), check.Equals, len(tags))
+
+	nManifests := 0
+	//count the number of manifest.json in dir1
+	err = filepath.Walk(dir1, func(path string, info os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+		if !info.IsDir() && info.Name() == "manifest.json" {
+			nManifests++
+			return filepath.SkipDir
+		}
+		return nil
+	})
+	c.Assert(err, check.IsNil)
+	c.Assert(nManifests, check.Equals, len(tags))
+}
+
+func (s *SyncSuite) TestYaml2Dir(c *check.C) {
+	tmpDir, err := ioutil.TempDir("", "skopeo-sync-test")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(tmpDir)
+	dir1 := path.Join(tmpDir, "dir1")
+
+	yamlConfig := `
+docker.io:
+  images:
+    busybox:
+      - latest
+      - musl
+    alpine:
+      - edge
+      - 3.8
+
+    opensuse/leap:
+      - latest
+
+quay.io:
+  images:
+      quay/busybox:
+          - latest`
+
+	// get the number of tags
+	re := regexp.MustCompile(`^ +- +[^:/ ]+`)
+	var nTags int
+	for _, l := range strings.Split(yamlConfig, "\n") {
+		if re.MatchString(l) {
+			nTags++
+		}
+	}
+	c.Assert(nTags, check.Not(check.Equals), 0)
+
+	yamlFile := path.Join(tmpDir, "registries.yaml")
+	ioutil.WriteFile(yamlFile, []byte(yamlConfig), 0644)
+	assertSkopeoSucceeds(c, "", "sync", "--scoped", "--src", "yaml", "--dest", "dir", yamlFile, dir1)
+
+	nManifests := 0
+	err = filepath.Walk(dir1, func(path string, info os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+		if !info.IsDir() && info.Name() == "manifest.json" {
+			nManifests++
+			return filepath.SkipDir
+		}
+		return nil
+	})
+	c.Assert(err, check.IsNil)
+	c.Assert(nManifests, check.Equals, nTags)
+}
+
+func (s *SyncSuite) TestYamlTLSVerify(c *check.C) {
+	const localRegURL = "docker://" + v2DockerRegistryURL + "/"
+	tmpDir, err := ioutil.TempDir("", "skopeo-sync-test")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(tmpDir)
+	dir1 := path.Join(tmpDir, "dir1")
+	image := "busybox"
+	tag := "latest"
+
+	// FIXME: It would be nice to use one of the local Docker registries instead of neeeding an Internet connection.
+	// copy docker => docker
+	assertSkopeoSucceeds(c, "", "copy", "--dest-tls-verify=false", "docker://"+image+":"+tag, localRegURL+image+":"+tag)
+
+	yamlTemplate := `
+%s:
+  %s
+  images:
+    %s:
+      - %s`
+
+	testCfg := []struct {
+		tlsVerify string
+		msg       string
+		checker   func(c *check.C, regexp string, args ...string)
+	}{
+		{
+			tlsVerify: "tls-verify: false",
+			msg:       "",
+			checker:   assertSkopeoSucceeds,
+		},
+		{
+			tlsVerify: "tls-verify: true",
+			msg:       ".*server gave HTTP response to HTTPS client.*",
+			checker:   assertSkopeoFails,
+		},
+		// no "tls-verify" line means default TLS verify must be ON
+		{
+			tlsVerify: "",
+			msg:       ".*server gave HTTP response to HTTPS client.*",
+			checker:   assertSkopeoFails,
+		},
+	}
+
+	for _, cfg := range testCfg {
+		yamlConfig := fmt.Sprintf(yamlTemplate, v2DockerRegistryURL, cfg.tlsVerify, image, tag)
+		yamlFile := path.Join(tmpDir, "registries.yaml")
+		ioutil.WriteFile(yamlFile, []byte(yamlConfig), 0644)
+
+		cfg.checker(c, cfg.msg, "sync", "--scoped", "--src", "yaml", "--dest", "dir", yamlFile, dir1)
+		os.Remove(yamlFile)
+		os.RemoveAll(dir1)
+	}
+
+}
+
+func (s *SyncSuite) TestDocker2DockerTagged(c *check.C) {
+	const localRegURL = "docker://" + v2DockerRegistryURL + "/"
+
+	tmpDir, err := ioutil.TempDir("", "skopeo-sync-test")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(tmpDir)
+
+	// FIXME: It would be nice to use one of the local Docker registries instead of neeeding an Internet connection.
+	image := "busybox:latest"
+	imageRef, err := docker.ParseReference(fmt.Sprintf("//%s", image))
+	c.Assert(err, check.IsNil)
+	imagePath := imageRef.DockerReference().String()
+
+	dir1 := path.Join(tmpDir, "dir1")
+	dir2 := path.Join(tmpDir, "dir2")
+
+	// sync docker => docker
+	assertSkopeoSucceeds(c, "", "sync", "--scoped", "--dest-tls-verify=false", "--src", "docker", "--dest", "docker", image, v2DockerRegistryURL)
+
+	// copy docker => dir
+	assertSkopeoSucceeds(c, "", "copy", "docker://"+image, "dir:"+dir1)
+	_, err = os.Stat(path.Join(dir1, "manifest.json"))
+	c.Assert(err, check.IsNil)
+
+	// copy docker => dir
+	assertSkopeoSucceeds(c, "", "copy", "--src-tls-verify=false", localRegURL+imagePath, "dir:"+dir2)
+	_, err = os.Stat(path.Join(dir2, "manifest.json"))
+	c.Assert(err, check.IsNil)
+
+	out := combinedOutputOfCommand(c, "diff", "-urN", dir1, dir2)
+	c.Assert(out, check.Equals, "")
+}
+
+func (s *SyncSuite) TestDir2DockerTagged(c *check.C) {
+	const localRegURL = "docker://" + v2DockerRegistryURL + "/"
+
+	tmpDir, err := ioutil.TempDir("", "skopeo-sync-test")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(tmpDir)
+
+	// FIXME: It would be nice to use one of the local Docker registries instead of neeeding an Internet connection.
+	image := "busybox:latest"
+
+	dir1 := path.Join(tmpDir, "dir1")
+	err = os.Mkdir(dir1, 0755)
+	c.Assert(err, check.IsNil)
+	dir2 := path.Join(tmpDir, "dir2")
+	err = os.Mkdir(dir2, 0755)
+	c.Assert(err, check.IsNil)
+
+	// copy docker => dir
+	assertSkopeoSucceeds(c, "", "copy", "docker://"+image, "dir:"+path.Join(dir1, image))
+	_, err = os.Stat(path.Join(dir1, image, "manifest.json"))
+	c.Assert(err, check.IsNil)
+
+	// sync dir => docker
+	assertSkopeoSucceeds(c, "", "sync", "--scoped", "--dest-tls-verify=false", "--src", "dir", "--dest", "docker", dir1, v2DockerRegistryURL)
+
+	// copy docker => dir
+	assertSkopeoSucceeds(c, "", "copy", "--src-tls-verify=false", localRegURL+image, "dir:"+path.Join(dir2, image))
+	_, err = os.Stat(path.Join(path.Join(dir2, image), "manifest.json"))
+	c.Assert(err, check.IsNil)
+
+	out := combinedOutputOfCommand(c, "diff", "-urN", dir1, dir2)
+	c.Assert(out, check.Equals, "")
+}
+
+func (s *SyncSuite) TestFailsWithDir2Dir(c *check.C) {
+	tmpDir, err := ioutil.TempDir("", "skopeo-sync-test")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(tmpDir)
+
+	dir1 := path.Join(tmpDir, "dir1")
+	dir2 := path.Join(tmpDir, "dir2")
+
+	// sync dir => dir is not allowed
+	assertSkopeoFails(c, ".*sync from 'dir' to 'dir' not implemented.*", "sync", "--scoped", "--src", "dir", "--dest", "dir", dir1, dir2)
+}
+
+func (s *SyncSuite) TestFailsNoSourceImages(c *check.C) {
+	tmpDir, err := ioutil.TempDir("", "skopeo-sync-test")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(tmpDir)
+
+	assertSkopeoFails(c, ".*No images to sync found in .*",
+		"sync", "--scoped", "--dest-tls-verify=false", "--src", "dir", "--dest", "docker", tmpDir, v2DockerRegistryURL)
+
+	assertSkopeoFails(c, ".*No images to sync found in .*",
+		"sync", "--scoped", "--dest-tls-verify=false", "--src", "docker", "--dest", "docker", "hopefully_no_images_will_ever_be_called_like_this", v2DockerRegistryURL)
+}
+
+func (s *SyncSuite) TestFailsWithDockerSourceNoRegistry(c *check.C) {
+	const regURL = "google.com/namespace/imagename"
+
+	tmpDir, err := ioutil.TempDir("", "skopeo-sync-test")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(tmpDir)
+
+	//untagged
+	assertSkopeoFails(c, ".*invalid status code from registry 404.*",
+		"sync", "--scoped", "--src", "docker", "--dest", "dir", regURL, tmpDir)
+
+	//tagged
+	assertSkopeoFails(c, ".*invalid status code from registry 404.*",
+		"sync", "--scoped", "--src", "docker", "--dest", "dir", regURL+":thetag", tmpDir)
+}
+
+func (s *SyncSuite) TestFailsWithDockerSourceUnauthorized(c *check.C) {
+	const repo = "privateimagenamethatshouldnotbepublic"
+	tmpDir, err := ioutil.TempDir("", "skopeo-sync-test")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(tmpDir)
+
+	//untagged
+	assertSkopeoFails(c, ".*Registry disallows tag list retrieval.*",
+		"sync", "--scoped", "--src", "docker", "--dest", "dir", repo, tmpDir)
+
+	//tagged
+	assertSkopeoFails(c, ".*unauthorized: authentication required.*",
+		"sync", "--scoped", "--src", "docker", "--dest", "dir", repo+":thetag", tmpDir)
+}
+
+func (s *SyncSuite) TestFailsWithDockerSourceNotExisting(c *check.C) {
+	repo := path.Join(v2DockerRegistryURL, "imagedoesdotexist")
+	tmpDir, err := ioutil.TempDir("", "skopeo-sync-test")
+	c.Assert(err, check.IsNil)
+	defer os.RemoveAll(tmpDir)
+
+	//untagged
+	assertSkopeoFails(c, ".*invalid status code from registry 404.*",
+		"sync", "--scoped", "--src-tls-verify=false", "--src", "docker", "--dest", "dir", repo, tmpDir)
+
+	//tagged
+	assertSkopeoFails(c, ".*Error reading manifest.*",
+		"sync", "--scoped", "--src-tls-verify=false", "--src", "docker", "--dest", "dir", repo+":thetag", tmpDir)
+}
+
+func (s *SyncSuite) TestFailsWithDirSourceNotExisting(c *check.C) {
+	// Make sure the dir does not exist!
+	tmpDir, err := ioutil.TempDir("", "skopeo-sync-test")
+	c.Assert(err, check.IsNil)
+	err = os.RemoveAll(tmpDir)
+	c.Assert(err, check.IsNil)
+	_, err = os.Stat(path.Join(tmpDir))
+	c.Check(os.IsNotExist(err), check.Equals, true)
+
+	assertSkopeoFails(c, ".*no such file or directory.*",
+		"sync", "--scoped", "--dest-tls-verify=false", "--src", "dir", "--dest", "docker", tmpDir, v2DockerRegistryURL)
+}

integration/utils.go

@@ -6,6 +6,7 @@ import (
 	"io/ioutil"
 	"net"
 	"os/exec"
+	"path/filepath"
 	"strings"
 	"time"
 
@@ -13,6 +14,7 @@ import (
 )
 
 const skopeoBinary = "skopeo"
+const decompressDirsBinary = "./decompress-dirs.sh"
 
 // consumeAndLogOutputStream takes (f, err) from an exec.*Pipe(), and causes all output to it to be logged to c.
 func consumeAndLogOutputStream(c *check.C, id string, f io.ReadCloser, err error) {
@@ -174,3 +176,27 @@ func fileFromFixture(c *check.C, inputPath string, edits map[string]string) stri
 	c.Assert(err, check.IsNil)
 	return path
 }
+
+// runDecompressDirs runs decompress-dirs.sh using exec.Command().CombinedOutput, verifies that the exit status is 0,
+// and optionally that the output matches a multi-line regexp if it is nonempty; or terminates c on failure
+func runDecompressDirs(c *check.C, regexp string, args ...string) {
+	c.Logf("Running %s %s", decompressDirsBinary, strings.Join(args, " "))
+	for i, dir := range args {
+		m, err := ioutil.ReadFile(filepath.Join(dir, "manifest.json"))
+		c.Assert(err, check.IsNil)
+		c.Logf("manifest %d before: %s", i+1, string(m))
+	}
+	out, err := exec.Command(decompressDirsBinary, args...).CombinedOutput()
+	c.Assert(err, check.IsNil, check.Commentf("%s", out))
+	for i, dir := range args {
+		if len(out) > 0 {
+			c.Logf("output: %s", out)
+		}
+		m, err := ioutil.ReadFile(filepath.Join(dir, "manifest.json"))
+		c.Assert(err, check.IsNil)
+		c.Logf("manifest %d after: %s", i+1, string(m))
+	}
+	if regexp != "" {
+		c.Assert(string(out), check.Matches, "(?s)"+regexp) // (?s) : '.' will also match newlines
+	}
+}

systemtest/001-basic.bats

@@ -0,0 +1,19 @@
+#!/usr/bin/env bats
+#
+# Simplest set of skopeo tests. If any of these fail, we have serious problems.
+#
+
+load helpers
+
+# Override standard setup! We don't yet trust anything
+function setup() {
+    :
+}
+
+@test "skopeo version emits reasonable output" {
+    run_skopeo --version
+
+    expect_output --substring "skopeo version [0-9.]+"
+}
+
+# vim: filetype=sh

systemtest/010-inspect.bats

@@ -0,0 +1,116 @@
+#!/usr/bin/env bats
+#
+# Simplest test for skopeo inspect
+#
+
+load helpers
+
+@test "inspect: basic" {
+    workdir=$TESTDIR/inspect
+
+    remote_image=docker://quay.io/libpod/alpine_labels:latest
+    # Inspect remote source, then pull it. There's a small race condition
+    # in which the remote image can get updated between the inspect and
+    # the copy; let's just not worry about it.
+    run_skopeo inspect $remote_image
+    inspect_remote=$output
+
+    # Now pull it into a directory
+    run_skopeo copy $remote_image dir:$workdir
+    expect_output --substring "Getting image source signatures"
+    expect_output --substring "Writing manifest to image destination"
+
+    # Unpacked contents must include a manifest and version
+    [ -e $workdir/manifest.json ]
+    [ -e $workdir/version ]
+
+    # Now run inspect locally
+    run_skopeo inspect dir:$workdir
+    inspect_local=$output
+
+    # Each SHA-named file must be listed in the output of 'inspect'
+    for sha in $(find $workdir -type f | xargs -l1 basename | egrep '^[0-9a-f]{64}$'); do
+        expect_output --from="$inspect_local" --substring "sha256:$sha" \
+                      "Locally-extracted SHA file is present in 'inspect'"
+    done
+
+    # Simple sanity check on 'inspect' output.
+    # For each of the given keys (LHS of the table below):
+    #    1) Get local and remote values
+    #    2) Sanity-check local value using simple expression
+    #    3) Confirm that local and remote values match.
+    #
+    # The reason for (2) is to make sure that we don't compare bad results
+    #
+    # The reason for a hardcoded list, instead of 'jq keys', is that RepoTags
+    # is always empty locally, but a list remotely.
+    while read key expect; do
+        local=$(echo "$inspect_local" | jq -r ".$key")
+        remote=$(echo "$inspect_remote" | jq -r ".$key")
+
+        expect_output --from="$local" --substring "$expect" \
+                  "local $key is sane"
+
+        expect_output --from="$remote" "$local" \
+                      "local $key matches remote"
+    done <<END_EXPECT
+Architecture       amd64
+Created            [0-9-]+T[0-9:]+\.[0-9]+Z
+Digest             sha256:[0-9a-f]{64}
+DockerVersion      [0-9]+\.[0-9][0-9.-]+
+Labels             \\\{.*PODMAN.*podman.*\\\}
+Layers             \\\[.*sha256:.*\\\]
+Os                 linux
+END_EXPECT
+}
+
+@test "inspect: env" {
+    remote_image=docker://docker.io/fedora:latest
+    run_skopeo inspect $remote_image
+    inspect_remote=$output
+
+    # Simple check on 'inspect' output with environment variables.
+    #    1) Get remote image values of environment variables (the value of 'Env')
+    #    2) Confirm substring in check_array and the value of 'Env' match.
+    check_array=(PATH=.* )
+    remote=$(echo "$inspect_remote" | jq '.Env[]')
+    for substr in ${check_array[@]}; do
+        expect_output --from="$remote" --substring "$substr"
+    done
+}
+
+@test "inspect: image manifest list w/ diff platform" {
+    # When --raw is provided, can inspect show the raw manifest list, w/o
+    # requiring any particular platform to be present
+    # To test whether container image can be inspected successfully w/o
+    # platform dependency.
+    #    1) Get current platform arch
+    #    2) Inspect container image is different from current platform arch
+    #    3) Compare output w/ expected result
+    arch=$(podman info --format '{{.host.arch}}')
+    case $arch in
+        "amd64")
+            diff_arch_list="s390x ppc64le"
+            ;;
+        "s390x")
+            diff_arch_list="amd64 ppc64le"
+            ;;
+        "ppc64le")
+            diff_arch_list="amd64 s390x"
+            ;;
+        "*")
+            diff_arch_list="amd64 s390x ppc64le"
+            ;;
+    esac
+
+    for arch in $diff_arch_list; do
+        remote_image=docker://docker.io/$arch/golang
+        run_skopeo inspect --tls-verify=false --raw $remote_image
+        remote=$(echo "$output" | jq -r '.manifests[0]["platform"]')
+        expect=$(echo "{\"architecture\":\"$arch\",\"os\":\"linux\"}" | jq)
+        expect_output --from="$remote" --substring "$expect" \
+                  "platform arch is not expected"
+    done
+}
+
+# vim: filetype=sh

systemtest/020-copy.bats

@@ -0,0 +1,103 @@
+#!/usr/bin/env bats
+#
+# Copy tests
+#
+
+load helpers
+
+function setup() {
+    standard_setup
+
+    start_registry reg
+}
+
+# From remote, to dir1, to local, to dir2;
+# compare dir1 and dir2, expect no changes
+@test "copy: dir, round trip" {
+    local remote_image=docker://busybox:latest
+    local localimg=docker://localhost:5000/busybox:unsigned
+
+    local dir1=$TESTDIR/dir1
+    local dir2=$TESTDIR/dir2
+
+    run_skopeo copy          $remote_image  dir:$dir1
+    run_skopeo copy --dest-tls-verify=false dir:$dir1  $localimg
+    run_skopeo copy  --src-tls-verify=false            $localimg  dir:$dir2
+
+    # Both extracted copies must be identical
+    diff -urN $dir1 $dir2
+}
+
+# Same as above, but using 'oci:' instead of 'dir:' and with a :latest tag
+@test "copy: oci, round trip" {
+    local remote_image=docker://busybox:latest
+    local localimg=docker://localhost:5000/busybox:unsigned
+
+    local dir1=$TESTDIR/oci1
+    local dir2=$TESTDIR/oci2
+
+    run_skopeo copy          $remote_image  oci:$dir1:latest
+    run_skopeo copy --dest-tls-verify=false oci:$dir1:latest  $localimg
+    run_skopeo copy  --src-tls-verify=false                   $localimg  oci:$dir2:latest
+
+    # Both extracted copies must be identical
+    diff -urN $dir1 $dir2
+}
+
+# Compression zstd
+@test "copy: oci, round trip, zstd" {
+    local remote_image=docker://busybox:latest
+
+    local dir=$TESTDIR/dir
+
+    run_skopeo copy --dest-compress --dest-compress-format=zstd $remote_image oci:$dir:latest
+
+    # zstd magic number
+    local magic=$(printf "\x28\xb5\x2f\xfd")
+
+    # Check there is at least one file that has the zstd magic number as the first 4 bytes
+    (for i in $dir/blobs/sha256/*; do test "$(head -c 4 $i)" = $magic && exit 0; done; exit 1)
+}
+
+# Same image, extracted once with :tag and once without
+@test "copy: oci w/ and w/o tags" {
+    local remote_image=docker://busybox:latest
+
+    local dir1=$TESTDIR/dir1
+    local dir2=$TESTDIR/dir2
+
+    run_skopeo copy $remote_image oci:$dir1
+    run_skopeo copy $remote_image oci:$dir2:withtag
+
+    # Both extracted copies must be identical, except for index.json
+    diff -urN --exclude=index.json $dir1 $dir2
+
+    # ...which should differ only in the tag. (But that's too hard to check)
+    grep '"org.opencontainers.image.ref.name":"withtag"' $dir2/index.json
+}
+
+# Registry -> storage -> oci-archive
+@test "copy: registry -> storage -> oci-archive" {
+    local alpine=docker.io/library/alpine:latest
+    local tmp=$TESTDIR/oci
+
+    run_skopeo copy docker://$alpine containers-storage:$alpine
+    run_skopeo copy containers-storage:$alpine oci-archive:$tmp
+}
+
+# This one seems unlikely to get fixed
+@test "copy: bug 651" {
+    skip "Enable this once skopeo issue #651 has been fixed"
+
+    run_skopeo copy --dest-tls-verify=false \
+               docker://quay.io/libpod/alpine_labels:latest \
+               docker://localhost:5000/foo
+}
+
+teardown() {
+    podman rm -f reg
+
+    standard_teardown
+}
+
+# vim: filetype=sh

systemtest/030-local-registry-tls.bats

@@ -0,0 +1,32 @@
+#!/usr/bin/env bats
+#
+# Confirm that skopeo will push to and pull from a local
+# registry with locally-created TLS certificates.
+#
+load helpers
+
+function setup() {
+    standard_setup
+
+    start_registry --with-cert reg
+}
+
+@test "local registry, with cert" {
+    # Push to local registry...
+    run_skopeo copy --dest-cert-dir=$TESTDIR/client-auth \
+               docker://busybox:latest \
+               docker://localhost:5000/busybox:unsigned
+
+    # ...and pull it back out
+    run_skopeo copy --src-cert-dir=$TESTDIR/client-auth \
+               docker://localhost:5000/busybox:unsigned \
+               dir:$TESTDIR/extracted
+}
+
+teardown() {
+    podman rm -f reg
+
+    standard_teardown
+}
+
+# vim: filetype=sh

systemtest/040-local-registry-auth.bats

@@ -0,0 +1,78 @@
+#!/usr/bin/env bats
+#
+# Tests with a local registry with auth
+#
+
+load helpers
+
+function setup() {
+    standard_setup
+
+    # Remove old/stale cred file
+    _cred_dir=$TESTDIR/credentials
+    export XDG_RUNTIME_DIR=$_cred_dir
+    mkdir -p $_cred_dir/containers
+    rm -f $_cred_dir/containers/auth.json
+
+    # Start authenticated registry with random password
+    testuser=testuser
+    testpassword=$(random_string 15)
+
+    start_registry --testuser=$testuser --testpassword=$testpassword reg
+}
+
+@test "auth: credentials on command line" {
+    # No creds
+    run_skopeo 1 inspect --tls-verify=false docker://localhost:5000/nonesuch
+    expect_output --substring "unauthorized: authentication required"
+
+    # Wrong user
+    run_skopeo 1 inspect --tls-verify=false --creds=baduser:badpassword \
+               docker://localhost:5000/nonesuch
+    expect_output --substring "unauthorized: authentication required"
+
+    # Wrong password
+    run_skopeo 1 inspect --tls-verify=false --creds=$testuser:badpassword \
+               docker://localhost:5000/nonesuch
+    expect_output --substring "unauthorized: authentication required"
+
+    # Correct creds, but no such image
+    run_skopeo 1 inspect --tls-verify=false --creds=$testuser:$testpassword \
+               docker://localhost:5000/nonesuch
+    expect_output --substring "manifest unknown: manifest unknown"
+
+    # These should pass
+    run_skopeo copy --dest-tls-verify=false --dcreds=$testuser:$testpassword \
+               docker://busybox:latest docker://localhost:5000/busybox:mine
+    run_skopeo inspect --tls-verify=false --creds=$testuser:$testpassword \
+               docker://localhost:5000/busybox:mine
+    expect_output --substring "localhost:5000/busybox"
+}
+
+@test "auth: credentials via podman login" {
+    # Logged in: skopeo should work
+    podman login --tls-verify=false -u $testuser -p $testpassword localhost:5000
+
+    run_skopeo copy --dest-tls-verify=false \
+               docker://busybox:latest docker://localhost:5000/busybox:mine
+    run_skopeo inspect --tls-verify=false docker://localhost:5000/busybox:mine
+    expect_output --substring "localhost:5000/busybox"
+
+    # Logged out: should fail
+    podman logout localhost:5000
+
+    run_skopeo 1 inspect --tls-verify=false docker://localhost:5000/busybox:mine
+    expect_output --substring "unauthorized: authentication required"
+}
+
+teardown() {
+    podman rm -f reg
+
+    if [[ -n $_cred_dir ]]; then
+        rm -rf $_cred_dir
+    fi
+
+    standard_teardown
+}
+
+# vim: filetype=sh

systemtest/050-signing.bats

@@ -0,0 +1,151 @@
+#!/usr/bin/env bats
+#
+# Tests with gpg signing
+#
+
+load helpers
+
+function setup() {
+    standard_setup
+
+    # Create dummy gpg keys
+    export GNUPGHOME=$TESTDIR/skopeo-gpg
+    mkdir --mode=0700 $GNUPGHOME
+
+    # gpg on f30 needs this, otherwise:
+    #   gpg: agent_genkey failed: Inappropriate ioctl for device
+    # ...but gpg on f29 (and, probably, Ubuntu) doesn't grok this
+    GPGOPTS='--pinentry-mode loopback'
+    if gpg --pinentry-mode asdf 2>&1 | grep -qi 'Invalid option'; then
+        GPGOPTS=
+    fi
+
+    for k in alice bob;do
+        gpg --batch $GPGOPTS --gen-key --passphrase '' <<END_GPG
+Key-Type: RSA
+Name-Real: Test key - $k
+Name-email: $k@test.redhat.com
+%commit
+END_GPG
+
+        gpg --armor --export $k@test.redhat.com >$GNUPGHOME/pubkey-$k.gpg
+    done
+
+    # Registries. The important part here seems to be sigstore,
+    # because (I guess?) the registry itself has no mechanism
+    # for storing or validating signatures.
+    REGISTRIES_D=$TESTDIR/registries.d
+    mkdir $REGISTRIES_D $TESTDIR/sigstore
+    cat >$REGISTRIES_D/registries.yaml <<EOF
+docker:
+   localhost:5000:
+        sigstore: file://$TESTDIR/sigstore
+EOF
+
+    # Policy file. Basically, require /myns/alice and /myns/bob
+    # to be signed; allow /open; and reject anything else.
+    POLICY_JSON=$TESTDIR/policy.json
+    cat >$POLICY_JSON <<END_POLICY_JSON
+{
+    "default": [
+        {
+            "type": "reject"
+        }
+    ],
+    "transports": {
+        "docker": {
+            "localhost:5000/myns/alice": [
+                {
+                    "type": "signedBy",
+                    "keyType": "GPGKeys",
+                    "keyPath": "$GNUPGHOME/pubkey-alice.gpg"
+                }
+            ],
+            "localhost:5000/myns/bob": [
+                {
+                    "type": "signedBy",
+                    "keyType": "GPGKeys",
+                    "keyPath": "$GNUPGHOME/pubkey-bob.gpg"
+                }
+            ],
+            "localhost:5000/open": [
+                {
+                    "type": "insecureAcceptAnything"
+                }
+            ]
+        }
+    }
+}
+END_POLICY_JSON
+
+    start_registry reg
+}
+
+@test "signing" {
+    run_skopeo '?' standalone-sign /dev/null busybox alice@test.redhat.com -o /dev/null
+    if [[ "$output" =~ 'signing is not supported' ]]; then
+        skip "skopeo built without support for creating signatures"
+        return 1
+    fi
+    if [ "$status" -ne 0 ]; then
+        die "exit code is $status; expected $expected_rc"
+    fi
+
+    # Cache local copy
+    run_skopeo copy docker://busybox:latest dir:$TESTDIR/busybox
+
+    # Push a bunch of images. Do so *without* --policy flag; this lets us
+    # sign or not, creating images that will or won't conform to policy.
+    while read path sig comments; do
+        local sign_opt=
+        if [[ $sig != '-' ]]; then
+            sign_opt="--sign-by=${sig}@test.redhat.com"
+        fi
+        run_skopeo --registries.d $REGISTRIES_D \
+                   copy --dest-tls-verify=false \
+                   $sign_opt \
+                   dir:$TESTDIR/busybox \
+                   docker://localhost:5000$path
+    done <<END_PUSH
+/myns/alice:signed        alice    # Properly-signed image
+/myns/alice:unsigned      -        # Unsigned image to path that requires signature
+/myns/bob:signedbyalice   alice    # Bad signature: image under /bob
+/myns/carol:latest        -        # No signature
+/open/forall:latest       -        # No signature, but none needed
+END_PUSH
+
+    # Done pushing. Now try to fetch. From here on we use the --policy option.
+    # The table below lists the paths to fetch, and the expected errors (or
+    # none, if we expect them to pass).
+    while read path expected_error; do
+        expected_rc=
+        if [[ -n $expected_error ]]; then
+            expected_rc=1
+        fi
+
+        rm -rf $TESTDIR/d
+        run_skopeo $expected_rc \
+                   --registries.d $REGISTRIES_D \
+                   --policy $POLICY_JSON \
+                   copy --src-tls-verify=false \
+                   docker://localhost:5000$path \
+                   dir:$TESTDIR/d
+        if [[ -n $expected_error ]]; then
+            expect_output --substring "Source image rejected: $expected_error"
+        fi
+    done <<END_TESTS
+/myns/alice:signed
+/myns/bob:signedbyalice    Invalid GPG signature
+/myns/alice:unsigned       Signature for identity localhost:5000/myns/alice:signed is not accepted
+/myns/carol:latest         Running image docker://localhost:5000/myns/carol:latest is rejected by policy.
+/open/forall:latest
+END_TESTS
+}
+
+teardown() {
+    podman rm -f reg
+
+    standard_teardown
+}
+
+# vim: filetype=sh

systemtest/060-delete.bats

@@ -0,0 +1,37 @@
+#!/usr/bin/env bats
+#
+# Copy tests
+#
+
+load helpers
+
+function setup() {
+    standard_setup
+
+    start_registry --enable-delete=true reg
+}
+
+# delete image from registry
+@test "delete: remove image from registry" {
+    local remote_image=docker://busybox:latest
+    local localimg=docker://localhost:5000/busybox:unsigned
+    local output=
+
+    run_skopeo copy --dest-tls-verify=false $remote_image $localimg
+    output=$(run_skopeo inspect --tls-verify=false --raw $localimg)
+    echo $output | grep "vnd.docker.distribution.manifest.v2+json"
+
+    run_skopeo delete --tls-verify=false $localimg
+
+    # make sure image is removed from registry
+    expected_rc=1
+    run_skopeo $expected_rc inspect --tls-verify=false $localimg
+}
+
+teardown() {
+    podman rm -f reg
+
+    standard_teardown
+}
+
+# vim: filetype=sh

systemtest/helpers.bash

@@ -0,0 +1,367 @@
+#!/bin/bash
+
+SKOPEO_BINARY=${SKOPEO_BINARY:-$(dirname ${BASH_SOURCE})/../skopeo}
+
+# Default timeout for a skopeo command.
+SKOPEO_TIMEOUT=${SKOPEO_TIMEOUT:-300}
+
+###############################################################################
+# BEGIN setup/teardown
+
+# Provide common setup and teardown functions, but do not name them such!
+# That way individual tests can override with their own setup/teardown,
+# while retaining the ability to include these if they so desire.
+
+function standard_setup() {
+    # Argh. Although BATS provides $BATS_TMPDIR, it's just /tmp!
+    # That's bloody worthless. Let's make our own, in which subtests
+    # can write whatever they like and trust that it'll be deleted
+    # on cleanup.
+    TESTDIR=$(mktemp -d --tmpdir=${BATS_TMPDIR:-/tmp} skopeo_bats.XXXXXX)
+}
+
+function standard_teardown() {
+    if [[ -n $TESTDIR ]]; then
+        rm -rf $TESTDIR
+    fi
+}
+
+# Individual .bats files may override or extend these
+function setup() {
+    standard_setup
+}
+
+function teardown() {
+    standard_teardown
+}
+
+# END   setup/teardown
+###############################################################################
+# BEGIN standard helpers for running skopeo and testing results
+
+#################
+#  run_skopeo  #  Invoke skopeo, with timeout, using BATS 'run'
+#################
+#
+# This is the preferred mechanism for invoking skopeo:
+#
+#  * we use 'timeout' to abort (with a diagnostic) if something
+#    takes too long; this is preferable to a CI hang.
+#  * we log the command run and its output. This doesn't normally
+#    appear in BATS output, but it will if there's an error.
+#  * we check exit status. Since the normal desired code is 0,
+#    that's the default; but the first argument can override:
+#
+#     run_skopeo 125  nonexistent-subcommand
+#     run_skopeo '?'  some-other-command       # let our caller check status
+#
+# Since we use the BATS 'run' mechanism, $output and $status will be
+# defined for our caller.
+#
+function run_skopeo() {
+    # Number as first argument = expected exit code; default 0
+    expected_rc=0
+    case "$1" in
+        [0-9])           expected_rc=$1; shift;;
+        [1-9][0-9])      expected_rc=$1; shift;;
+        [12][0-9][0-9])  expected_rc=$1; shift;;
+        '?')             expected_rc=  ; shift;;  # ignore exit code
+    esac
+
+    # Remember command args, for possible use in later diagnostic messages
+    MOST_RECENT_SKOPEO_COMMAND="skopeo $*"
+
+    # stdout is only emitted upon error; this echo is to help a debugger
+    echo "\$ $SKOPEO_BINARY $*"
+    run timeout --foreground --kill=10 $SKOPEO_TIMEOUT ${SKOPEO_BINARY} "$@"
+    # without "quotes", multiple lines are glommed together into one
+    if [ -n "$output" ]; then
+        echo "$output"
+    fi
+    if [ "$status" -ne 0 ]; then
+        echo -n "[ rc=$status ";
+        if [ -n "$expected_rc" ]; then
+            if [ "$status" -eq "$expected_rc" ]; then
+                echo -n "(expected) ";
+            else
+                echo -n "(** EXPECTED $expected_rc **) ";
+            fi
+        fi
+        echo "]"
+    fi
+
+    if [ "$status" -eq 124 -o "$status" -eq 137 ]; then
+        # FIXME: 'timeout -v' requires coreutils-8.29; travis seems to have
+        #        an older version. If/when travis updates, please add -v
+        #        to the 'timeout' command above, and un-comment this out:
+        # if expr "$output" : ".*timeout: sending" >/dev/null; then
+        echo "*** TIMED OUT ***"
+        false
+    fi
+
+    if [ -n "$expected_rc" ]; then
+        if [ "$status" -ne "$expected_rc" ]; then
+            die "exit code is $status; expected $expected_rc"
+        fi
+    fi
+}
+
+#################
+#  log_and_run  #  log a command for later debugging, then run it
+#################
+#
+# When diagnosing a test failure,  it can be really nice to see the
+# more important commands that have been run in test setup: openssl,
+# podman registry, other complex commands that can give one a boost
+# when trying to reproduce problems. This simple wrapper takes a
+# command as its arg, echoes it to stdout (with a '$' prefix),
+# then runs the command. BATS does not show stdout unless there's
+# an error. Use this judiciously.
+#
+function log_and_run() {
+    echo "\$ $*"
+    "$@"
+}
+
+#########
+#  die  #  Abort with helpful message
+#########
+function die() {
+    echo "#/vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv"  >&2
+    echo "#| FAIL: $*"                                           >&2
+    echo "#\\^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^" >&2
+    false
+}
+
+###################
+#  expect_output  #  Compare actual vs expected string; fail if mismatch
+###################
+#
+# Compares $output against the given string argument. Optional second
+# argument is descriptive text to show as the error message (default:
+# the command most recently run by 'run_skopeo'). This text can be
+# useful to isolate a failure when there are multiple identical
+# run_skopeo invocations, and the difference is solely in the
+# config or setup; see, e.g., run.bats:run-cmd().
+#
+# By default we run an exact string comparison; use --substring to
+# look for the given string anywhere in $output.
+#
+# By default we look in "$output", which is set in run_skopeo().
+# To override, use --from="some-other-string" (e.g. "${lines[0]}")
+#
+# Examples:
+#
+#   expect_output "this is exactly what we expect"
+#   expect_output "foo=bar"  "description of this particular test"
+#   expect_output --from="${lines[0]}"  "expected first line"
+#
+function expect_output() {
+    # By default we examine $output, the result of run_skopeo
+    local actual="$output"
+    local check_substring=
+
+    # option processing: recognize --from="...", --substring
+    local opt
+    for opt; do
+        local value=$(expr "$opt" : '[^=]*=\(.*\)')
+        case "$opt" in
+            --from=*)       actual="$value";   shift;;
+            --substring)    check_substring=1; shift;;
+            --)             shift; break;;
+            -*)             die "Invalid option '$opt'" ;;
+            *)              break;;
+        esac
+    done
+
+    local expect="$1"
+    local testname="${2:-${MOST_RECENT_SKOPEO_COMMAND:-[no test name given]}}"
+
+    if [ -z "$expect" ]; then
+        if [ -z "$actual" ]; then
+            return
+        fi
+        expect='[no output]'
+    elif [ "$actual" = "$expect" ]; then
+	return
+    elif [ -n "$check_substring" ]; then
+        if [[ "$actual" =~ $expect ]]; then
+            return
+        fi
+    fi
+
+    # This is a multi-line message, which may in turn contain multi-line
+    # output, so let's format it ourself, readably
+    local -a actual_split
+    readarray -t actual_split <<<"$actual"
+    printf "#/vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv\n" >&2
+    printf "#|     FAIL: $testname\n"                          >&2
+    printf "#| expected: '%s'\n" "$expect"                     >&2
+    printf "#|   actual: '%s'\n" "${actual_split[0]}"          >&2
+    local line
+    for line in "${actual_split[@]:1}"; do
+        printf "#|         > '%s'\n" "$line"                   >&2
+    done
+    printf "#\\^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n" >&2
+    false
+}
+
+#######################
+#  expect_line_count  #  Check the expected number of output lines
+#######################
+#
+# ...from the most recent run_skopeo command
+#
+function expect_line_count() {
+    local expect="$1"
+    local testname="${2:-${MOST_RECENT_SKOPEO_COMMAND:-[no test name given]}}"
+
+    local actual="${#lines[@]}"
+    if [ "$actual" -eq "$expect" ]; then
+        return
+    fi
+
+    printf "#/vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv\n"          >&2
+    printf "#| FAIL: $testname\n"                                       >&2
+    printf "#| Expected %d lines of output, got %d\n" $expect $actual   >&2
+    printf "#| Output was:\n"                                           >&2
+    local line
+    for line in "${lines[@]}"; do
+        printf "#| >%s\n" "$line"                                       >&2
+    done
+    printf "#\\^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n"         >&2
+    false
+}
+
+# END   standard helpers for running skopeo and testing results
+###############################################################################
+# BEGIN helpers for starting/stopping registries
+
+####################
+#  start_registry  #  Run a local registry container
+####################
+#
+# Usage:  start_registry [OPTIONS] NAME
+#
+#   OPTIONS
+#       --port=NNNN         Port to listen on (default: 5000)
+#       --testuser=XXX      Require authentication; this is the username
+#       --testpassword=XXX  ...and the password (these two go together)
+#       --with-cert         Create a cert for running with TLS (not working)
+#       --enable-delete     Set allowing registry deletions (default: false)
+#
+#   NAME is the container name to assign.
+#
+start_registry() {
+    local port=5000
+    local testuser=
+    local testpassword=
+    local create_cert=
+    local enable_delete=false
+
+    # option processing: recognize options for running the registry
+    # in different modes.
+    local opt
+    for opt; do
+        local value=$(expr "$opt" : '[^=]*=\(.*\)')
+        case "$opt" in
+            --port=*)           port="$value";          shift;;
+            --testuser=*)       testuser="$value";      shift;;
+            --testpassword=*)   testpassword="$value";  shift;;
+            --with-cert)        create_cert=1;          shift;;
+            --enable-delete=*)  enable_delete="$value"; shift;;
+            -*)                 die "Invalid option '$opt'" ;;
+            *)                  break;;
+        esac
+    done
+
+    local name=${1?start_registry() invoked without a NAME}
+
+    # Temp directory must be defined and must exist
+    [[ -n $TESTDIR && -d $TESTDIR ]]
+
+    AUTHDIR=$TESTDIR/auth
+    mkdir -p $AUTHDIR
+
+    local -a reg_args=(-v $AUTHDIR:/auth:Z -p $port:5000)
+    if [[ "$enable_delete" == "true" ]]; then
+        reg_args+=( -e REGISTRY_STORAGE_DELETE_ENABLED=true)
+    fi
+
+    # cgroup option necessary under podman-in-podman (CI tests),
+    # and doesn't seem to do any harm otherwise.
+    PODMAN="podman --cgroup-manager=cgroupfs"
+
+    # Called with --testuser? Create an htpasswd file
+    if [[ -n $testuser ]]; then
+        if [[ -z $testpassword ]]; then
+            die "start_registry() invoked with testuser but no testpassword"
+        fi
+
+        if ! egrep -q "^$testuser:" $AUTHDIR/htpasswd; then
+            log_and_run $PODMAN run --rm --entrypoint htpasswd registry:2 \
+                   -Bbn $testuser $testpassword >> $AUTHDIR/htpasswd
+        fi
+
+        reg_args+=(
+            -e REGISTRY_AUTH=htpasswd
+            -e REGISTRY_AUTH_HTPASSWD_PATH=/auth/htpasswd
+            -e REGISTRY_AUTH_HTPASSWD_REALM="Registry Realm"
+        )
+    fi
+
+    # Called with --with-cert? Create certificates.
+    if [[ -n $create_cert ]]; then
+        CERT=$AUTHDIR/domain.crt
+        if [ ! -e $CERT ]; then
+            log_and_run openssl req -newkey rsa:4096 -nodes -sha256 \
+                    -keyout $AUTHDIR/domain.key -x509 -days 2 \
+                    -out $CERT \
+                    -subj "/C=US/ST=Foo/L=Bar/O=Red Hat, Inc./CN=localhost"
+        fi
+
+        reg_args+=(
+            -e REGISTRY_HTTP_TLS_CERTIFICATE=/auth/domain.crt
+            -e REGISTRY_HTTP_TLS_KEY=/auth/domain.key
+        )
+
+        # Copy .crt file to a directory *without* the .key one, so we can
+        # test the client. (If client sees a matching .key file, it fails)
+        # Thanks to Miloslav Trmac for this hint.
+        mkdir -p $TESTDIR/client-auth
+        log_and_run cp $CERT $TESTDIR/client-auth/
+    fi
+
+    log_and_run $PODMAN run -d --name $name "${reg_args[@]}" registry:2
+
+    # Wait for registry to actually come up
+    timeout=10
+    while [[ $timeout -ge 1 ]]; do
+        if echo -n >/dev/tcp/127.0.0.1/$port; then
+            return
+        fi
+
+        timeout=$(expr $timeout - 1)
+        sleep 1
+    done
+    die "Timed out waiting for registry container to respond on :$port"
+}
+
+# END   helpers for starting/stopping registries
+###############################################################################
+# BEGIN miscellaneous tools
+
+###################
+#  random_string  #  Returns a pseudorandom human-readable string
+###################
+#
+# Numeric argument, if present, is desired length of string
+#
+function random_string() {
+    local length=${1:-10}
+
+    head /dev/urandom | tr -dc a-zA-Z0-9 | head -c$length
+}
+
+# END   miscellaneous tools
+###############################################################################

systemtest/run-tests

@@ -0,0 +1,16 @@
+#!/bin/bash
+#
+# run-tests - simple wrapper allowing shortcuts on invocation
+#
+
+TEST_DIR=$(dirname $0)
+TESTS=$TEST_DIR
+
+for i; do
+    case "$i" in
+        *.bats)    TESTS=$i ;;
+        *)         TESTS=$(echo $TEST_DIR/*$i*.bats) ;;
+    esac
+done
+
+bats $TESTS

vendor.conf

@@ -1,66 +0,0 @@
-
-github.com/urfave/cli v1.20.0
-github.com/kr/pretty v0.1.0
-github.com/kr/text v0.1.0
-github.com/containers/image v1.5
-github.com/vbauerster/mpb v3.3.4
-github.com/mattn/go-isatty v0.0.4
-github.com/VividCortex/ewma v1.1.1
-golang.org/x/sync 42b317875d0fa942474b76e1b46a6060d720ae6e
-github.com/opencontainers/go-digest c9281466c8b2f606084ac71339773efd177436e7
-github.com/containers/storage v1.11
-github.com/sirupsen/logrus v1.0.0
-github.com/go-check/check v1
-github.com/stretchr/testify v1.1.3
-github.com/davecgh/go-spew v1.1.1
-github.com/pmezard/go-difflib 5d4384ee4fb2527b0a1256a821ebfc92f91efefc
-github.com/pkg/errors v0.8.1
-golang.org/x/crypto a4c6cb3142f211c99e4bf4cd769535b29a9b616f
-github.com/ulikunitz/xz v0.5.4
-github.com/boltdb/bolt v1.3.1
-# docker deps from https://github.com/docker/docker/blob/v1.11.2/hack/vendor.sh
-github.com/docker/docker da99009bbb1165d1ac5688b5c81d2f589d418341
-github.com/docker/go-connections 7beb39f0b969b075d1325fecb092faf27fd357b6
-github.com/containerd/continuity d8fb8589b0e8e85b8c8bbaa8840226d0dfeb7371
-github.com/vbatts/tar-split v0.10.2
-github.com/gorilla/context 14f550f51a
-github.com/gorilla/mux e444e69cbd
-github.com/docker/go-units 8a7beacffa3009a9ac66bad506b18ffdd110cf97
-golang.org/x/net 45ffb0cd1ba084b73e26dee67e667e1be5acce83
-github.com/gogo/protobuf fcdc5011193ff531a548e9b0301828d5a5b97fd8
-# end docker deps
-golang.org/x/text e6919f6577db79269a6443b9dc46d18f2238fb5d
-github.com/docker/distribution 5f6282db7d65e6d72ad7c2cc66310724a57be716
-# docker/distributions dependencies
-# end of docker/distribution dependencies
-github.com/docker/libtrust aabc10ec26b754e797f9028f4589c5b7bd90dc20
-github.com/docker/docker-credential-helpers d68f9aeca33f5fd3f08eeae5e9d175edf4e731d1
-github.com/opencontainers/runc v1.0.0-rc6
-github.com/opencontainers/image-spec 7b1e489870acb042978a3935d2fb76f8a79aff81
-# -- start OCI image validation requirements.
-github.com/opencontainers/runtime-spec v1.0.0
-github.com/opencontainers/image-tools 6d941547fa1df31900990b3fb47ec2468c9c6469
-github.com/xeipuuv/gojsonpointer 4e3ac2762d5f479393488629ee9370b50873b3a6
-github.com/xeipuuv/gojsonreference bd5ef7bd5415a7ac448318e64f11a24cd21e594b
-github.com/xeipuuv/gojsonschema v1.1.0
-go4.org ce4c26f7be8eb27dc77f996b08d286dd80bc4a01 https://github.com/camlistore/go4
-github.com/ostreedev/ostree-go 56f3a639dbc0f2f5051c6d52dade28a882ba78ce
-# -- end OCI image validation requirements
-github.com/mtrmac/gpgme b2432428689ca58c2b8e8dea9449d3295cf96fc9
-# openshift/origin' k8s dependencies as of OpenShift v1.1.5
-k8s.io/client-go kubernetes-1.10.13-beta.0
-github.com/ghodss/yaml 73d445a93680fa1a78ae23a5839bad48f32ba1ee
-gopkg.in/yaml.v2 d466437aa4adc35830964cffc5b5f262c63ddcb4
-github.com/imdario/mergo 6633656539c1639d9d78127b7d47c622b5d7b6dc
-# containers/storage's dependencies that aren't already being pulled in
-github.com/mistifyio/go-zfs 22c9b32c84eb0d0c6f4043b6e90fc94073de92fa
-github.com/pborman/uuid v1.0
-github.com/opencontainers/selinux v1.1
-golang.org/x/sys 43e60d72a8e2bd92ee98319ba9a384a0e9837c08
-github.com/tchap/go-patricia v2.2.6
-github.com/BurntSushi/toml v0.2.0
-github.com/pquerna/ffjson d49c2bc1aa135aad0c6f4fc2056623ec78f5d5ac
-github.com/syndtr/gocapability d98352740cb2c55f81556b63d4a1ec64c5a319c2
-github.com/klauspost/pgzip v1.2.1
-github.com/klauspost/compress v1.4.1
-github.com/klauspost/cpuid v1.2.0

vendor/github.com/BurntSushi/toml/.gitignore

@@ -0,0 +1,5 @@
+TAGS
+tags
+.*.swp
+tomlcheck/tomlcheck
+toml.test

vendor/github.com/BurntSushi/toml/.travis.yml

@@ -0,0 +1,15 @@
+language: go
+go:
+  - 1.1
+  - 1.2
+  - 1.3
+  - 1.4
+  - 1.5
+  - 1.6
+  - tip
+install:
+  - go install ./...
+  - go get github.com/BurntSushi/toml-test
+script:
+  - export PATH="$PATH:$HOME/gopath/bin"
+  - make test

vendor/github.com/BurntSushi/toml/COMPATIBLE

@@ -0,0 +1,3 @@
+Compatible with TOML version
+[v0.4.0](https://github.com/toml-lang/toml/blob/v0.4.0/versions/en/toml-v0.4.0.md)
+

vendor/github.com/BurntSushi/toml/COPYING

@@ -1,14 +1,21 @@
-            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
-                    Version 2, December 2004
+The MIT License (MIT)
 
- Copyright (C) 2004 Sam Hocevar <sam@hocevar.net>
+Copyright (c) 2013 TOML authors
 
- Everyone is permitted to copy and distribute verbatim or modified
- copies of this license document, and changing it is allowed as long
- as the name is changed.
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
 
-            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
-   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
-
-  0. You just DO WHAT THE FUCK YOU WANT TO.
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
 
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

vendor/github.com/BurntSushi/toml/Makefile

@@ -0,0 +1,19 @@
+install:
+	go install ./...
+
+test: install
+	go test -v
+	toml-test toml-test-decoder
+	toml-test -encoder toml-test-encoder
+
+fmt:
+	gofmt -w *.go */*.go
+	colcheck *.go */*.go
+
+tags:
+	find ./ -name '*.go' -print0 | xargs -0 gotags > TAGS
+
+push:
+	git push origin master
+	git push github master
+

vendor/github.com/BurntSushi/toml/README.md

@@ -1,17 +1,17 @@
 ## TOML parser and encoder for Go with reflection
 
 TOML stands for Tom's Obvious, Minimal Language. This Go package provides a
-reflection interface similar to Go's standard library `json` and `xml` 
+reflection interface similar to Go's standard library `json` and `xml`
 packages. This package also supports the `encoding.TextUnmarshaler` and
-`encoding.TextMarshaler` interfaces so that you can define custom data 
+`encoding.TextMarshaler` interfaces so that you can define custom data
 representations. (There is an example of this below.)
 
-Spec: https://github.com/mojombo/toml
+Spec: https://github.com/toml-lang/toml
 
 Compatible with TOML version
-[v0.2.0](https://github.com/toml-lang/toml/blob/master/versions/en/toml-v0.2.0.md)
+[v0.4.0](https://github.com/toml-lang/toml/blob/master/versions/en/toml-v0.4.0.md)
 
-Documentation: http://godoc.org/github.com/BurntSushi/toml
+Documentation: https://godoc.org/github.com/BurntSushi/toml
 
 Installation:
 
@@ -26,8 +26,7 @@ go get github.com/BurntSushi/toml/cmd/tomlv
 tomlv some-toml-file.toml
 ```
 
-[![Build status](https://api.travis-ci.org/BurntSushi/toml.png)](https://travis-ci.org/BurntSushi/toml)
-
+[![Build Status](https://travis-ci.org/BurntSushi/toml.svg?branch=master)](https://travis-ci.org/BurntSushi/toml) [![GoDoc](https://godoc.org/github.com/BurntSushi/toml?status.svg)](https://godoc.org/github.com/BurntSushi/toml)
 
 ### Testing
 
@@ -87,7 +86,7 @@ type TOML struct {
 
 ### Using the `encoding.TextUnmarshaler` interface
 
-Here's an example that automatically parses duration strings into 
+Here's an example that automatically parses duration strings into
 `time.Duration` values:
 
 ```toml
@@ -120,7 +119,7 @@ for _, s := range favorites.Song {
 }
 ```
 
-And you'll also need a `duration` type that satisfies the 
+And you'll also need a `duration` type that satisfies the
 `encoding.TextUnmarshaler` interface:
 
 ```go
@@ -217,4 +216,3 @@ Note that a case insensitive match will be tried if an exact match can't be
 found.
 
 A working example of the above can be found in `_examples/example.{go,toml}`.
-

vendor/github.com/BurntSushi/toml/decode.go

@@ -10,7 +10,9 @@ import (
 	"time"
 )
 
-var e = fmt.Errorf
+func e(format string, args ...interface{}) error {
+	return fmt.Errorf("toml: "+format, args...)
+}
 
 // Unmarshaler is the interface implemented by objects that can unmarshal a
 // TOML description of themselves.
@@ -103,6 +105,13 @@ func (md *MetaData) PrimitiveDecode(primValue Primitive, v interface{}) error {
 // This decoder will not handle cyclic types. If a cyclic type is passed,
 // `Decode` will not terminate.
 func Decode(data string, v interface{}) (MetaData, error) {
+	rv := reflect.ValueOf(v)
+	if rv.Kind() != reflect.Ptr {
+		return MetaData{}, e("Decode of non-pointer %s", reflect.TypeOf(v))
+	}
+	if rv.IsNil() {
+		return MetaData{}, e("Decode of nil %s", reflect.TypeOf(v))
+	}
 	p, err := parse(data)
 	if err != nil {
 		return MetaData{}, err
@@ -111,7 +120,7 @@ func Decode(data string, v interface{}) (MetaData, error) {
 		p.mapping, p.types, p.ordered,
 		make(map[string]bool, len(p.ordered)), nil,
 	}
-	return md, md.unify(p.mapping, rvalue(v))
+	return md, md.unify(p.mapping, indirect(rv))
 }
 
 // DecodeFile is just like Decode, except it will automatically read the
@@ -211,7 +220,7 @@ func (md *MetaData) unify(data interface{}, rv reflect.Value) error {
 	case reflect.Interface:
 		// we only support empty interfaces.
 		if rv.NumMethod() > 0 {
-			return e("Unsupported type '%s'.", rv.Kind())
+			return e("unsupported type %s", rv.Type())
 		}
 		return md.unifyAnything(data, rv)
 	case reflect.Float32:
@@ -219,7 +228,7 @@ func (md *MetaData) unify(data interface{}, rv reflect.Value) error {
 	case reflect.Float64:
 		return md.unifyFloat64(data, rv)
 	}
-	return e("Unsupported type '%s'.", rv.Kind())
+	return e("unsupported type %s", rv.Kind())
 }
 
 func (md *MetaData) unifyStruct(mapping interface{}, rv reflect.Value) error {
@@ -228,7 +237,8 @@ func (md *MetaData) unifyStruct(mapping interface{}, rv reflect.Value) error {
 		if mapping == nil {
 			return nil
 		}
-		return mismatch(rv, "map", mapping)
+		return e("type mismatch for %s: expected table but found %T",
+			rv.Type().String(), mapping)
 	}
 
 	for key, datum := range tmap {
@@ -253,14 +263,13 @@ func (md *MetaData) unifyStruct(mapping interface{}, rv reflect.Value) error {
 				md.decoded[md.context.add(key).String()] = true
 				md.context = append(md.context, key)
 				if err := md.unify(datum, subv); err != nil {
-					return e("Type mismatch for '%s.%s': %s",
-						rv.Type().String(), f.name, err)
+					return err
 				}
 				md.context = md.context[0 : len(md.context)-1]
 			} else if f.name != "" {
 				// Bad user! No soup for you!
-				return e("Field '%s.%s' is unexported, and therefore cannot "+
-					"be loaded with reflection.", rv.Type().String(), f.name)
+				return e("cannot write unexported field %s.%s",
+					rv.Type().String(), f.name)
 			}
 		}
 	}
@@ -378,15 +387,15 @@ func (md *MetaData) unifyInt(data interface{}, rv reflect.Value) error {
 				// No bounds checking necessary.
 			case reflect.Int8:
 				if num < math.MinInt8 || num > math.MaxInt8 {
-					return e("Value '%d' is out of range for int8.", num)
+					return e("value %d is out of range for int8", num)
 				}
 			case reflect.Int16:
 				if num < math.MinInt16 || num > math.MaxInt16 {
-					return e("Value '%d' is out of range for int16.", num)
+					return e("value %d is out of range for int16", num)
 				}
 			case reflect.Int32:
 				if num < math.MinInt32 || num > math.MaxInt32 {
-					return e("Value '%d' is out of range for int32.", num)
+					return e("value %d is out of range for int32", num)
 				}
 			}
 			rv.SetInt(num)
@@ -397,15 +406,15 @@ func (md *MetaData) unifyInt(data interface{}, rv reflect.Value) error {
 				// No bounds checking necessary.
 			case reflect.Uint8:
 				if num < 0 || unum > math.MaxUint8 {
-					return e("Value '%d' is out of range for uint8.", num)
+					return e("value %d is out of range for uint8", num)
 				}
 			case reflect.Uint16:
 				if num < 0 || unum > math.MaxUint16 {
-					return e("Value '%d' is out of range for uint16.", num)
+					return e("value %d is out of range for uint16", num)
 				}
 			case reflect.Uint32:
 				if num < 0 || unum > math.MaxUint32 {
-					return e("Value '%d' is out of range for uint32.", num)
+					return e("value %d is out of range for uint32", num)
 				}
 			}
 			rv.SetUint(unum)
@@ -471,7 +480,7 @@ func rvalue(v interface{}) reflect.Value {
 // interest to us (like encoding.TextUnmarshaler).
 func indirect(v reflect.Value) reflect.Value {
 	if v.Kind() != reflect.Ptr {
-		if v.CanAddr() {
+		if v.CanSet() {
 			pv := v.Addr()
 			if _, ok := pv.Interface().(TextUnmarshaler); ok {
 				return pv
@@ -496,10 +505,5 @@ func isUnifiable(rv reflect.Value) bool {
 }
 
 func badtype(expected string, data interface{}) error {
-	return e("Expected %s but found '%T'.", expected, data)
-}
-
-func mismatch(user reflect.Value, expected string, data interface{}) error {
-	return e("Type mismatch for %s. Expected %s but found '%T'.",
-		user.Type().String(), expected, data)
+	return e("cannot load TOML value of type %T into a Go %s", data, expected)
 }

vendor/github.com/BurntSushi/toml/decode_meta.go

@@ -77,9 +77,8 @@ func (k Key) maybeQuoted(i int) string {
 	}
 	if quote {
 		return "\"" + strings.Replace(k[i], "\"", "\\\"", -1) + "\""
-	} else {
-		return k[i]
 	}
+	return k[i]
 }
 
 func (k Key) add(piece string) Key {

vendor/github.com/BurntSushi/toml/doc.go

@@ -4,7 +4,7 @@ files via reflection. There is also support for delaying decoding with
 the Primitive type, and querying the set of keys in a TOML document with the
 MetaData type.
 
-The specification implemented: https://github.com/mojombo/toml
+The specification implemented: https://github.com/toml-lang/toml
 
 The sub-command github.com/BurntSushi/toml/cmd/tomlv can be used to verify
 whether a file is a valid TOML document. It can also be used to print the

vendor/github.com/BurntSushi/toml/encode.go

@@ -16,17 +16,17 @@ type tomlEncodeError struct{ error }
 
 var (
 	errArrayMixedElementTypes = errors.New(
-		"can't encode array with mixed element types")
+		"toml: cannot encode array with mixed element types")
 	errArrayNilElement = errors.New(
-		"can't encode array with nil element")
+		"toml: cannot encode array with nil element")
 	errNonString = errors.New(
-		"can't encode a map with non-string key type")
+		"toml: cannot encode a map with non-string key type")
 	errAnonNonStruct = errors.New(
-		"can't encode an anonymous field that is not a struct")
+		"toml: cannot encode an anonymous field that is not a struct")
 	errArrayNoTable = errors.New(
-		"TOML array element can't contain a table")
+		"toml: TOML array element cannot contain a table")
 	errNoKey = errors.New(
-		"top-level values must be a Go map or struct")
+		"toml: top-level values must be Go maps or structs")
 	errAnything = errors.New("") // used in testing
 )
 
@@ -148,7 +148,7 @@ func (enc *Encoder) encode(key Key, rv reflect.Value) {
 	case reflect.Struct:
 		enc.eTable(key, rv)
 	default:
-		panic(e("Unsupported type for key '%s': %s", key, k))
+		panic(e("unsupported type for key '%s': %s", key, k))
 	}
 }
 
@@ -160,7 +160,7 @@ func (enc *Encoder) eElement(rv reflect.Value) {
 		// Special case time.Time as a primitive. Has to come before
 		// TextMarshaler below because time.Time implements
 		// encoding.TextMarshaler, but we need to always use UTC.
-		enc.wf(v.In(time.FixedZone("UTC", 0)).Format("2006-01-02T15:04:05Z"))
+		enc.wf(v.UTC().Format("2006-01-02T15:04:05Z"))
 		return
 	case TextMarshaler:
 		// Special case. Use text marshaler if it's available for this value.
@@ -191,7 +191,7 @@ func (enc *Encoder) eElement(rv reflect.Value) {
 	case reflect.String:
 		enc.writeQuoted(rv.String())
 	default:
-		panic(e("Unexpected primitive type: %s", rv.Kind()))
+		panic(e("unexpected primitive type: %s", rv.Kind()))
 	}
 }
 
@@ -241,7 +241,7 @@ func (enc *Encoder) eArrayOfTables(key Key, rv reflect.Value) {
 func (enc *Encoder) eTable(key Key, rv reflect.Value) {
 	panicIfInvalidKey(key)
 	if len(key) == 1 {
-		// Output an extra new line between top-level tables.
+		// Output an extra newline between top-level tables.
 		// (The newline isn't written if nothing else has been written though.)
 		enc.newline()
 	}
@@ -315,10 +315,16 @@ func (enc *Encoder) eStruct(key Key, rv reflect.Value) {
 				t := f.Type
 				switch t.Kind() {
 				case reflect.Struct:
-					addFields(t, frv, f.Index)
-					continue
+					// Treat anonymous struct fields with
+					// tag names as though they are not
+					// anonymous, like encoding/json does.
+					if getOptions(f.Tag).name == "" {
+						addFields(t, frv, f.Index)
+						continue
+					}
 				case reflect.Ptr:
-					if t.Elem().Kind() == reflect.Struct {
+					if t.Elem().Kind() == reflect.Struct &&
+						getOptions(f.Tag).name == "" {
 						if !frv.IsNil() {
 							addFields(t.Elem(), frv.Elem(), f.Index)
 						}
@@ -347,17 +353,18 @@ func (enc *Encoder) eStruct(key Key, rv reflect.Value) {
 				continue
 			}
 
-			tag := sft.Tag.Get("toml")
-			if tag == "-" {
+			opts := getOptions(sft.Tag)
+			if opts.skip {
 				continue
 			}
-			keyName, opts := getOptions(tag)
-			if keyName == "" {
-				keyName = sft.Name
+			keyName := sft.Name
+			if opts.name != "" {
+				keyName = opts.name
 			}
-			if _, ok := opts["omitempty"]; ok && isEmpty(sf) {
+			if opts.omitempty && isEmpty(sf) {
 				continue
-			} else if _, ok := opts["omitzero"]; ok && isZero(sf) {
+			}
+			if opts.omitzero && isZero(sf) {
 				continue
 			}
 
@@ -392,9 +399,8 @@ func tomlTypeOfGo(rv reflect.Value) tomlType {
 	case reflect.Array, reflect.Slice:
 		if typeEqual(tomlHash, tomlArrayType(rv)) {
 			return tomlArrayHash
-		} else {
-			return tomlArray
 		}
+		return tomlArray
 	case reflect.Ptr, reflect.Interface:
 		return tomlTypeOfGo(rv.Elem())
 	case reflect.String:
@@ -451,17 +457,30 @@ func tomlArrayType(rv reflect.Value) tomlType {
 	return firstType
 }
 
-func getOptions(keyName string) (string, map[string]struct{}) {
-	opts := make(map[string]struct{})
-	ss := strings.Split(keyName, ",")
-	name := ss[0]
-	if len(ss) > 1 {
-		for _, opt := range ss {
-			opts[opt] = struct{}{}
+type tagOptions struct {
+	skip      bool // "-"
+	name      string
+	omitempty bool
+	omitzero  bool
+}
+
+func getOptions(tag reflect.StructTag) tagOptions {
+	t := tag.Get("toml")
+	if t == "-" {
+		return tagOptions{skip: true}
+	}
+	var opts tagOptions
+	parts := strings.Split(t, ",")
+	opts.name = parts[0]
+	for _, s := range parts[1:] {
+		switch s {
+		case "omitempty":
+			opts.omitempty = true
+		case "omitzero":
+			opts.omitzero = true
 		}
 	}
-
-	return name, opts
+	return opts
 }
 
 func isZero(rv reflect.Value) bool {

vendor/github.com/BurntSushi/toml/lex.go

@@ -3,6 +3,7 @@ package toml
 import (
 	"fmt"
 	"strings"
+	"unicode"
 	"unicode/utf8"
 )
 
@@ -29,24 +30,28 @@ const (
 	itemArrayTableEnd
 	itemKeyStart
 	itemCommentStart
+	itemInlineTableStart
+	itemInlineTableEnd
 )
 
 const (
-	eof             = 0
-	tableStart      = '['
-	tableEnd        = ']'
-	arrayTableStart = '['
-	arrayTableEnd   = ']'
-	tableSep        = '.'
-	keySep          = '='
-	arrayStart      = '['
-	arrayEnd        = ']'
-	arrayValTerm    = ','
-	commentStart    = '#'
-	stringStart     = '"'
-	stringEnd       = '"'
-	rawStringStart  = '\''
-	rawStringEnd    = '\''
+	eof              = 0
+	comma            = ','
+	tableStart       = '['
+	tableEnd         = ']'
+	arrayTableStart  = '['
+	arrayTableEnd    = ']'
+	tableSep         = '.'
+	keySep           = '='
+	arrayStart       = '['
+	arrayEnd         = ']'
+	commentStart     = '#'
+	stringStart      = '"'
+	stringEnd        = '"'
+	rawStringStart   = '\''
+	rawStringEnd     = '\''
+	inlineTableStart = '{'
+	inlineTableEnd   = '}'
 )
 
 type stateFn func(lx *lexer) stateFn
@@ -55,11 +60,18 @@ type lexer struct {
 	input string
 	start int
 	pos   int
-	width int
 	line  int
 	state stateFn
 	items chan item
 
+	// Allow for backing up up to three runes.
+	// This is necessary because TOML contains 3-rune tokens (""" and ''').
+	prevWidths [3]int
+	nprev      int // how many of prevWidths are in use
+	// If we emit an eof, we can still back up, but it is not OK to call
+	// next again.
+	atEOF bool
+
 	// A stack of state functions used to maintain context.
 	// The idea is to reuse parts of the state machine in various places.
 	// For example, values can appear at the top level or within arbitrarily
@@ -87,7 +99,7 @@ func (lx *lexer) nextItem() item {
 
 func lex(input string) *lexer {
 	lx := &lexer{
-		input: input + "\n",
+		input: input,
 		state: lexTop,
 		line:  1,
 		items: make(chan item, 10),
@@ -102,7 +114,7 @@ func (lx *lexer) push(state stateFn) {
 
 func (lx *lexer) pop() stateFn {
 	if len(lx.stack) == 0 {
-		return lx.errorf("BUG in lexer: no states to pop.")
+		return lx.errorf("BUG in lexer: no states to pop")
 	}
 	last := lx.stack[len(lx.stack)-1]
 	lx.stack = lx.stack[0 : len(lx.stack)-1]
@@ -124,16 +136,25 @@ func (lx *lexer) emitTrim(typ itemType) {
 }
 
 func (lx *lexer) next() (r rune) {
+	if lx.atEOF {
+		panic("next called after EOF")
+	}
 	if lx.pos >= len(lx.input) {
-		lx.width = 0
+		lx.atEOF = true
 		return eof
 	}
 
 	if lx.input[lx.pos] == '\n' {
 		lx.line++
 	}
-	r, lx.width = utf8.DecodeRuneInString(lx.input[lx.pos:])
-	lx.pos += lx.width
+	lx.prevWidths[2] = lx.prevWidths[1]
+	lx.prevWidths[1] = lx.prevWidths[0]
+	if lx.nprev < 3 {
+		lx.nprev++
+	}
+	r, w := utf8.DecodeRuneInString(lx.input[lx.pos:])
+	lx.prevWidths[0] = w
+	lx.pos += w
 	return r
 }
 
@@ -142,9 +163,20 @@ func (lx *lexer) ignore() {
 	lx.start = lx.pos
 }
 
-// backup steps back one rune. Can be called only once per call of next.
+// backup steps back one rune. Can be called only twice between calls to next.
 func (lx *lexer) backup() {
-	lx.pos -= lx.width
+	if lx.atEOF {
+		lx.atEOF = false
+		return
+	}
+	if lx.nprev < 1 {
+		panic("backed up too far")
+	}
+	w := lx.prevWidths[0]
+	lx.prevWidths[0] = lx.prevWidths[1]
+	lx.prevWidths[1] = lx.prevWidths[2]
+	lx.nprev--
+	lx.pos -= w
 	if lx.pos < len(lx.input) && lx.input[lx.pos] == '\n' {
 		lx.line--
 	}
@@ -166,9 +198,22 @@ func (lx *lexer) peek() rune {
 	return r
 }
 
+// skip ignores all input that matches the given predicate.
+func (lx *lexer) skip(pred func(rune) bool) {
+	for {
+		r := lx.next()
+		if pred(r) {
+			continue
+		}
+		lx.backup()
+		lx.ignore()
+		return
+	}
+}
+
 // errorf stops all lexing by emitting an error and returning `nil`.
 // Note that any value that is a character is escaped if it's a special
-// character (new lines, tabs, etc.).
+// character (newlines, tabs, etc.).
 func (lx *lexer) errorf(format string, values ...interface{}) stateFn {
 	lx.items <- item{
 		itemError,
@@ -184,7 +229,6 @@ func lexTop(lx *lexer) stateFn {
 	if isWhitespace(r) || isNL(r) {
 		return lexSkip(lx, lexTop)
 	}
-
 	switch r {
 	case commentStart:
 		lx.push(lexTop)
@@ -193,7 +237,7 @@ func lexTop(lx *lexer) stateFn {
 		return lexTableStart
 	case eof:
 		if lx.pos > lx.start {
-			return lx.errorf("Unexpected EOF.")
+			return lx.errorf("unexpected EOF")
 		}
 		lx.emit(itemEOF)
 		return nil
@@ -208,12 +252,12 @@ func lexTop(lx *lexer) stateFn {
 
 // lexTopEnd is entered whenever a top-level item has been consumed. (A value
 // or a table.) It must see only whitespace, and will turn back to lexTop
-// upon a new line. If it sees EOF, it will quit the lexer successfully.
+// upon a newline. If it sees EOF, it will quit the lexer successfully.
 func lexTopEnd(lx *lexer) stateFn {
 	r := lx.next()
 	switch {
 	case r == commentStart:
-		// a comment will read to a new line for us.
+		// a comment will read to a newline for us.
 		lx.push(lexTop)
 		return lexCommentStart
 	case isWhitespace(r):
@@ -222,11 +266,11 @@ func lexTopEnd(lx *lexer) stateFn {
 		lx.ignore()
 		return lexTop
 	case r == eof:
-		lx.ignore()
-		return lexTop
+		lx.emit(itemEOF)
+		return nil
 	}
-	return lx.errorf("Expected a top-level item to end with a new line, "+
-		"comment or EOF, but got %q instead.", r)
+	return lx.errorf("expected a top-level item to end with a newline, "+
+		"comment, or EOF, but got %q instead", r)
 }
 
 // lexTable lexes the beginning of a table. Namely, it makes sure that
@@ -253,21 +297,22 @@ func lexTableEnd(lx *lexer) stateFn {
 
 func lexArrayTableEnd(lx *lexer) stateFn {
 	if r := lx.next(); r != arrayTableEnd {
-		return lx.errorf("Expected end of table array name delimiter %q, "+
-			"but got %q instead.", arrayTableEnd, r)
+		return lx.errorf("expected end of table array name delimiter %q, "+
+			"but got %q instead", arrayTableEnd, r)
 	}
 	lx.emit(itemArrayTableEnd)
 	return lexTopEnd
 }
 
 func lexTableNameStart(lx *lexer) stateFn {
+	lx.skip(isWhitespace)
 	switch r := lx.peek(); {
 	case r == tableEnd || r == eof:
-		return lx.errorf("Unexpected end of table name. (Table names cannot " +
-			"be empty.)")
+		return lx.errorf("unexpected end of table name " +
+			"(table names cannot be empty)")
 	case r == tableSep:
-		return lx.errorf("Unexpected table separator. (Table names cannot " +
-			"be empty.)")
+		return lx.errorf("unexpected table separator " +
+			"(table names cannot be empty)")
 	case r == stringStart || r == rawStringStart:
 		lx.ignore()
 		lx.push(lexTableNameEnd)
@@ -277,24 +322,22 @@ func lexTableNameStart(lx *lexer) stateFn {
 	}
 }
 
-// lexTableName lexes the name of a table. It assumes that at least one
+// lexBareTableName lexes the name of a table. It assumes that at least one
 // valid character for the table has already been read.
 func lexBareTableName(lx *lexer) stateFn {
-	switch r := lx.next(); {
-	case isBareKeyChar(r):
+	r := lx.next()
+	if isBareKeyChar(r) {
 		return lexBareTableName
-	case r == tableSep || r == tableEnd:
-		lx.backup()
-		lx.emitTrim(itemText)
-		return lexTableNameEnd
-	default:
-		return lx.errorf("Bare keys cannot contain %q.", r)
 	}
+	lx.backup()
+	lx.emit(itemText)
+	return lexTableNameEnd
 }
 
 // lexTableNameEnd reads the end of a piece of a table name, optionally
 // consuming whitespace.
 func lexTableNameEnd(lx *lexer) stateFn {
+	lx.skip(isWhitespace)
 	switch r := lx.next(); {
 	case isWhitespace(r):
 		return lexTableNameEnd
@@ -304,8 +347,8 @@ func lexTableNameEnd(lx *lexer) stateFn {
 	case r == tableEnd:
 		return lx.pop()
 	default:
-		return lx.errorf("Expected '.' or ']' to end table name, but got %q "+
-			"instead.", r)
+		return lx.errorf("expected '.' or ']' to end table name, "+
+			"but got %q instead", r)
 	}
 }
 
@@ -315,7 +358,7 @@ func lexKeyStart(lx *lexer) stateFn {
 	r := lx.peek()
 	switch {
 	case r == keySep:
-		return lx.errorf("Unexpected key separator %q.", keySep)
+		return lx.errorf("unexpected key separator %q", keySep)
 	case isWhitespace(r) || isNL(r):
 		lx.next()
 		return lexSkip(lx, lexKeyStart)
@@ -338,14 +381,15 @@ func lexBareKey(lx *lexer) stateFn {
 	case isBareKeyChar(r):
 		return lexBareKey
 	case isWhitespace(r):
-		lx.emitTrim(itemText)
+		lx.backup()
+		lx.emit(itemText)
 		return lexKeyEnd
 	case r == keySep:
 		lx.backup()
-		lx.emitTrim(itemText)
+		lx.emit(itemText)
 		return lexKeyEnd
 	default:
-		return lx.errorf("Bare keys cannot contain %q.", r)
+		return lx.errorf("bare keys cannot contain %q", r)
 	}
 }
 
@@ -358,7 +402,7 @@ func lexKeyEnd(lx *lexer) stateFn {
 	case isWhitespace(r):
 		return lexSkip(lx, lexKeyEnd)
 	default:
-		return lx.errorf("Expected key separator %q, but got %q instead.",
+		return lx.errorf("expected key separator %q, but got %q instead",
 			keySep, r)
 	}
 }
@@ -367,20 +411,26 @@ func lexKeyEnd(lx *lexer) stateFn {
 // lexValue will ignore whitespace.
 // After a value is lexed, the last state on the next is popped and returned.
 func lexValue(lx *lexer) stateFn {
-	// We allow whitespace to precede a value, but NOT new lines.
-	// In array syntax, the array states are responsible for ignoring new
-	// lines.
+	// We allow whitespace to precede a value, but NOT newlines.
+	// In array syntax, the array states are responsible for ignoring newlines.
 	r := lx.next()
-	if isWhitespace(r) {
-		return lexSkip(lx, lexValue)
-	}
-
 	switch {
-	case r == arrayStart:
+	case isWhitespace(r):
+		return lexSkip(lx, lexValue)
+	case isDigit(r):
+		lx.backup() // avoid an extra state and use the same as above
+		return lexNumberOrDateStart
+	}
+	switch r {
+	case arrayStart:
 		lx.ignore()
 		lx.emit(itemArray)
 		return lexArrayValue
-	case r == stringStart:
+	case inlineTableStart:
+		lx.ignore()
+		lx.emit(itemInlineTableStart)
+		return lexInlineTableValue
+	case stringStart:
 		if lx.accept(stringStart) {
 			if lx.accept(stringStart) {
 				lx.ignore() // Ignore """
@@ -390,7 +440,7 @@ func lexValue(lx *lexer) stateFn {
 		}
 		lx.ignore() // ignore the '"'
 		return lexString
-	case r == rawStringStart:
+	case rawStringStart:
 		if lx.accept(rawStringStart) {
 			if lx.accept(rawStringStart) {
 				lx.ignore() // Ignore """
@@ -400,23 +450,24 @@ func lexValue(lx *lexer) stateFn {
 		}
 		lx.ignore() // ignore the "'"
 		return lexRawString
-	case r == 't':
-		return lexTrue
-	case r == 'f':
-		return lexFalse
-	case r == '-':
+	case '+', '-':
 		return lexNumberStart
-	case isDigit(r):
-		lx.backup() // avoid an extra state and use the same as above
-		return lexNumberOrDateStart
-	case r == '.': // special error case, be kind to users
-		return lx.errorf("Floats must start with a digit, not '.'.")
+	case '.': // special error case, be kind to users
+		return lx.errorf("floats must start with a digit, not '.'")
 	}
-	return lx.errorf("Expected value but found %q instead.", r)
+	if unicode.IsLetter(r) {
+		// Be permissive here; lexBool will give a nice error if the
+		// user wrote something like
+		//   x = foo
+		// (i.e. not 'true' or 'false' but is something else word-like.)
+		lx.backup()
+		return lexBool
+	}
+	return lx.errorf("expected value but found %q instead", r)
 }
 
 // lexArrayValue consumes one value in an array. It assumes that '[' or ','
-// have already been consumed. All whitespace and new lines are ignored.
+// have already been consumed. All whitespace and newlines are ignored.
 func lexArrayValue(lx *lexer) stateFn {
 	r := lx.next()
 	switch {
@@ -425,10 +476,11 @@ func lexArrayValue(lx *lexer) stateFn {
 	case r == commentStart:
 		lx.push(lexArrayValue)
 		return lexCommentStart
-	case r == arrayValTerm:
-		return lx.errorf("Unexpected array value terminator %q.",
-			arrayValTerm)
+	case r == comma:
+		return lx.errorf("unexpected comma")
 	case r == arrayEnd:
+		// NOTE(caleb): The spec isn't clear about whether you can have
+		// a trailing comma or not, so we'll allow it.
 		return lexArrayEnd
 	}
 
@@ -437,8 +489,9 @@ func lexArrayValue(lx *lexer) stateFn {
 	return lexValue
 }
 
-// lexArrayValueEnd consumes the cruft between values of an array. Namely,
-// it ignores whitespace and expects either a ',' or a ']'.
+// lexArrayValueEnd consumes everything between the end of an array value and
+// the next value (or the end of the array): it ignores whitespace and newlines
+// and expects either a ',' or a ']'.
 func lexArrayValueEnd(lx *lexer) stateFn {
 	r := lx.next()
 	switch {
@@ -447,31 +500,88 @@ func lexArrayValueEnd(lx *lexer) stateFn {
 	case r == commentStart:
 		lx.push(lexArrayValueEnd)
 		return lexCommentStart
-	case r == arrayValTerm:
+	case r == comma:
 		lx.ignore()
 		return lexArrayValue // move on to the next value
 	case r == arrayEnd:
 		return lexArrayEnd
 	}
-	return lx.errorf("Expected an array value terminator %q or an array "+
-		"terminator %q, but got %q instead.", arrayValTerm, arrayEnd, r)
+	return lx.errorf(
+		"expected a comma or array terminator %q, but got %q instead",
+		arrayEnd, r,
+	)
 }
 
-// lexArrayEnd finishes the lexing of an array. It assumes that a ']' has
-// just been consumed.
+// lexArrayEnd finishes the lexing of an array.
+// It assumes that a ']' has just been consumed.
 func lexArrayEnd(lx *lexer) stateFn {
 	lx.ignore()
 	lx.emit(itemArrayEnd)
 	return lx.pop()
 }
 
+// lexInlineTableValue consumes one key/value pair in an inline table.
+// It assumes that '{' or ',' have already been consumed. Whitespace is ignored.
+func lexInlineTableValue(lx *lexer) stateFn {
+	r := lx.next()
+	switch {
+	case isWhitespace(r):
+		return lexSkip(lx, lexInlineTableValue)
+	case isNL(r):
+		return lx.errorf("newlines not allowed within inline tables")
+	case r == commentStart:
+		lx.push(lexInlineTableValue)
+		return lexCommentStart
+	case r == comma:
+		return lx.errorf("unexpected comma")
+	case r == inlineTableEnd:
+		return lexInlineTableEnd
+	}
+	lx.backup()
+	lx.push(lexInlineTableValueEnd)
+	return lexKeyStart
+}
+
+// lexInlineTableValueEnd consumes everything between the end of an inline table
+// key/value pair and the next pair (or the end of the table):
+// it ignores whitespace and expects either a ',' or a '}'.
+func lexInlineTableValueEnd(lx *lexer) stateFn {
+	r := lx.next()
+	switch {
+	case isWhitespace(r):
+		return lexSkip(lx, lexInlineTableValueEnd)
+	case isNL(r):
+		return lx.errorf("newlines not allowed within inline tables")
+	case r == commentStart:
+		lx.push(lexInlineTableValueEnd)
+		return lexCommentStart
+	case r == comma:
+		lx.ignore()
+		return lexInlineTableValue
+	case r == inlineTableEnd:
+		return lexInlineTableEnd
+	}
+	return lx.errorf("expected a comma or an inline table terminator %q, "+
+		"but got %q instead", inlineTableEnd, r)
+}
+
+// lexInlineTableEnd finishes the lexing of an inline table.
+// It assumes that a '}' has just been consumed.
+func lexInlineTableEnd(lx *lexer) stateFn {
+	lx.ignore()
+	lx.emit(itemInlineTableEnd)
+	return lx.pop()
+}
+
 // lexString consumes the inner contents of a string. It assumes that the
 // beginning '"' has already been consumed and ignored.
 func lexString(lx *lexer) stateFn {
 	r := lx.next()
 	switch {
+	case r == eof:
+		return lx.errorf("unexpected EOF")
 	case isNL(r):
-		return lx.errorf("Strings cannot contain new lines.")
+		return lx.errorf("strings cannot contain newlines")
 	case r == '\\':
 		lx.push(lexString)
 		return lexStringEscape
@@ -488,11 +598,12 @@ func lexString(lx *lexer) stateFn {
 // lexMultilineString consumes the inner contents of a string. It assumes that
 // the beginning '"""' has already been consumed and ignored.
 func lexMultilineString(lx *lexer) stateFn {
-	r := lx.next()
-	switch {
-	case r == '\\':
+	switch lx.next() {
+	case eof:
+		return lx.errorf("unexpected EOF")
+	case '\\':
 		return lexMultilineStringEscape
-	case r == stringEnd:
+	case stringEnd:
 		if lx.accept(stringEnd) {
 			if lx.accept(stringEnd) {
 				lx.backup()
@@ -516,8 +627,10 @@ func lexMultilineString(lx *lexer) stateFn {
 func lexRawString(lx *lexer) stateFn {
 	r := lx.next()
 	switch {
+	case r == eof:
+		return lx.errorf("unexpected EOF")
 	case isNL(r):
-		return lx.errorf("Strings cannot contain new lines.")
+		return lx.errorf("strings cannot contain newlines")
 	case r == rawStringEnd:
 		lx.backup()
 		lx.emit(itemRawString)
@@ -529,12 +642,13 @@ func lexRawString(lx *lexer) stateFn {
 }
 
 // lexMultilineRawString consumes a raw string. Nothing can be escaped in such
-// a string. It assumes that the beginning "'" has already been consumed and
+// a string. It assumes that the beginning "'''" has already been consumed and
 // ignored.
 func lexMultilineRawString(lx *lexer) stateFn {
-	r := lx.next()
-	switch {
-	case r == rawStringEnd:
+	switch lx.next() {
+	case eof:
+		return lx.errorf("unexpected EOF")
+	case rawStringEnd:
 		if lx.accept(rawStringEnd) {
 			if lx.accept(rawStringEnd) {
 				lx.backup()
@@ -559,11 +673,10 @@ func lexMultilineStringEscape(lx *lexer) stateFn {
 	// Handle the special case first:
 	if isNL(lx.next()) {
 		return lexMultilineString
-	} else {
-		lx.backup()
-		lx.push(lexMultilineString)
-		return lexStringEscape(lx)
 	}
+	lx.backup()
+	lx.push(lexMultilineString)
+	return lexStringEscape(lx)
 }
 
 func lexStringEscape(lx *lexer) stateFn {
@@ -588,10 +701,9 @@ func lexStringEscape(lx *lexer) stateFn {
 	case 'U':
 		return lexLongUnicodeEscape
 	}
-	return lx.errorf("Invalid escape character %q. Only the following "+
+	return lx.errorf("invalid escape character %q; only the following "+
 		"escape characters are allowed: "+
-		"\\b, \\t, \\n, \\f, \\r, \\\", \\/, \\\\, "+
-		"\\uXXXX and \\UXXXXXXXX.", r)
+		`\b, \t, \n, \f, \r, \", \\, \uXXXX, and \UXXXXXXXX`, r)
 }
 
 func lexShortUnicodeEscape(lx *lexer) stateFn {
@@ -599,8 +711,8 @@ func lexShortUnicodeEscape(lx *lexer) stateFn {
 	for i := 0; i < 4; i++ {
 		r = lx.next()
 		if !isHexadecimal(r) {
-			return lx.errorf("Expected four hexadecimal digits after '\\u', "+
-				"but got '%s' instead.", lx.current())
+			return lx.errorf(`expected four hexadecimal digits after '\u', `+
+				"but got %q instead", lx.current())
 		}
 	}
 	return lx.pop()
@@ -611,40 +723,43 @@ func lexLongUnicodeEscape(lx *lexer) stateFn {
 	for i := 0; i < 8; i++ {
 		r = lx.next()
 		if !isHexadecimal(r) {
-			return lx.errorf("Expected eight hexadecimal digits after '\\U', "+
-				"but got '%s' instead.", lx.current())
+			return lx.errorf(`expected eight hexadecimal digits after '\U', `+
+				"but got %q instead", lx.current())
 		}
 	}
 	return lx.pop()
 }
 
-// lexNumberOrDateStart consumes either a (positive) integer, float or
-// datetime. It assumes that NO negative sign has been consumed.
+// lexNumberOrDateStart consumes either an integer, a float, or datetime.
 func lexNumberOrDateStart(lx *lexer) stateFn {
 	r := lx.next()
-	if !isDigit(r) {
-		if r == '.' {
-			return lx.errorf("Floats must start with a digit, not '.'.")
-		} else {
-			return lx.errorf("Expected a digit but got %q.", r)
-		}
+	if isDigit(r) {
+		return lexNumberOrDate
 	}
-	return lexNumberOrDate
+	switch r {
+	case '_':
+		return lexNumber
+	case 'e', 'E':
+		return lexFloat
+	case '.':
+		return lx.errorf("floats must start with a digit, not '.'")
+	}
+	return lx.errorf("expected a digit but got %q", r)
 }
 
-// lexNumberOrDate consumes either a (positive) integer, float or datetime.
+// lexNumberOrDate consumes either an integer, float or datetime.
 func lexNumberOrDate(lx *lexer) stateFn {
 	r := lx.next()
-	switch {
-	case r == '-':
-		if lx.pos-lx.start != 5 {
-			return lx.errorf("All ISO8601 dates must be in full Zulu form.")
-		}
-		return lexDateAfterYear
-	case isDigit(r):
+	if isDigit(r) {
 		return lexNumberOrDate
-	case r == '.':
-		return lexFloatStart
+	}
+	switch r {
+	case '-':
+		return lexDatetime
+	case '_':
+		return lexNumber
+	case '.', 'e', 'E':
+		return lexFloat
 	}
 
 	lx.backup()
@@ -652,46 +767,34 @@ func lexNumberOrDate(lx *lexer) stateFn {
 	return lx.pop()
 }
 
-// lexDateAfterYear consumes a full Zulu Datetime in ISO8601 format.
-// It assumes that "YYYY-" has already been consumed.
-func lexDateAfterYear(lx *lexer) stateFn {
-	formats := []rune{
-		// digits are '0'.
-		// everything else is direct equality.
-		'0', '0', '-', '0', '0',
-		'T',
-		'0', '0', ':', '0', '0', ':', '0', '0',
-		'Z',
+// lexDatetime consumes a Datetime, to a first approximation.
+// The parser validates that it matches one of the accepted formats.
+func lexDatetime(lx *lexer) stateFn {
+	r := lx.next()
+	if isDigit(r) {
+		return lexDatetime
 	}
-	for _, f := range formats {
-		r := lx.next()
-		if f == '0' {
-			if !isDigit(r) {
-				return lx.errorf("Expected digit in ISO8601 datetime, "+
-					"but found %q instead.", r)
-			}
-		} else if f != r {
-			return lx.errorf("Expected %q in ISO8601 datetime, "+
-				"but found %q instead.", f, r)
-		}
+	switch r {
+	case '-', 'T', ':', '.', 'Z', '+':
+		return lexDatetime
 	}
+
+	lx.backup()
 	lx.emit(itemDatetime)
 	return lx.pop()
 }
 
-// lexNumberStart consumes either an integer or a float. It assumes that
-// a negative sign has already been read, but that *no* digits have been
-// consumed. lexNumberStart will move to the appropriate integer or float
-// states.
+// lexNumberStart consumes either an integer or a float. It assumes that a sign
+// has already been read, but that *no* digits have been consumed.
+// lexNumberStart will move to the appropriate integer or float states.
 func lexNumberStart(lx *lexer) stateFn {
-	// we MUST see a digit. Even floats have to start with a digit.
+	// We MUST see a digit. Even floats have to start with a digit.
 	r := lx.next()
 	if !isDigit(r) {
 		if r == '.' {
-			return lx.errorf("Floats must start with a digit, not '.'.")
-		} else {
-			return lx.errorf("Expected a digit but got %q.", r)
+			return lx.errorf("floats must start with a digit, not '.'")
 		}
+		return lx.errorf("expected a digit but got %q", r)
 	}
 	return lexNumber
 }
@@ -699,11 +802,14 @@ func lexNumberStart(lx *lexer) stateFn {
 // lexNumber consumes an integer or a float after seeing the first digit.
 func lexNumber(lx *lexer) stateFn {
 	r := lx.next()
-	switch {
-	case isDigit(r):
+	if isDigit(r) {
 		return lexNumber
-	case r == '.':
-		return lexFloatStart
+	}
+	switch r {
+	case '_':
+		return lexNumber
+	case '.', 'e', 'E':
+		return lexFloat
 	}
 
 	lx.backup()
@@ -711,60 +817,42 @@ func lexNumber(lx *lexer) stateFn {
 	return lx.pop()
 }
 
-// lexFloatStart starts the consumption of digits of a float after a '.'.
-// Namely, at least one digit is required.
-func lexFloatStart(lx *lexer) stateFn {
-	r := lx.next()
-	if !isDigit(r) {
-		return lx.errorf("Floats must have a digit after the '.', but got "+
-			"%q instead.", r)
-	}
-	return lexFloat
-}
-
-// lexFloat consumes the digits of a float after a '.'.
-// Assumes that one digit has been consumed after a '.' already.
+// lexFloat consumes the elements of a float. It allows any sequence of
+// float-like characters, so floats emitted by the lexer are only a first
+// approximation and must be validated by the parser.
 func lexFloat(lx *lexer) stateFn {
 	r := lx.next()
 	if isDigit(r) {
 		return lexFloat
 	}
+	switch r {
+	case '_', '.', '-', '+', 'e', 'E':
+		return lexFloat
+	}
 
 	lx.backup()
 	lx.emit(itemFloat)
 	return lx.pop()
 }
 
-// lexConst consumes the s[1:] in s. It assumes that s[0] has already been
-// consumed.
-func lexConst(lx *lexer, s string) stateFn {
-	for i := range s[1:] {
-		if r := lx.next(); r != rune(s[i+1]) {
-			return lx.errorf("Expected %q, but found %q instead.", s[:i+1],
-				s[:i]+string(r))
+// lexBool consumes a bool string: 'true' or 'false.
+func lexBool(lx *lexer) stateFn {
+	var rs []rune
+	for {
+		r := lx.next()
+		if !unicode.IsLetter(r) {
+			lx.backup()
+			break
 		}
+		rs = append(rs, r)
 	}
-	return nil
-}
-
-// lexTrue consumes the "rue" in "true". It assumes that 't' has already
-// been consumed.
-func lexTrue(lx *lexer) stateFn {
-	if fn := lexConst(lx, "true"); fn != nil {
-		return fn
+	s := string(rs)
+	switch s {
+	case "true", "false":
+		lx.emit(itemBool)
+		return lx.pop()
 	}
-	lx.emit(itemBool)
-	return lx.pop()
-}
-
-// lexFalse consumes the "alse" in "false". It assumes that 'f' has already
-// been consumed.
-func lexFalse(lx *lexer) stateFn {
-	if fn := lexConst(lx, "false"); fn != nil {
-		return fn
-	}
-	lx.emit(itemBool)
-	return lx.pop()
+	return lx.errorf("expected value but found %q instead", s)
 }
 
 // lexCommentStart begins the lexing of a comment. It will emit
@@ -776,7 +864,7 @@ func lexCommentStart(lx *lexer) stateFn {
 }
 
 // lexComment lexes an entire comment. It assumes that '#' has been consumed.
-// It will consume *up to* the first new line character, and pass control
+// It will consume *up to* the first newline character, and pass control
 // back to the last state on the stack.
 func lexComment(lx *lexer) stateFn {
 	r := lx.peek()
@@ -834,13 +922,7 @@ func (itype itemType) String() string {
 		return "EOF"
 	case itemText:
 		return "Text"
-	case itemString:
-		return "String"
-	case itemRawString:
-		return "String"
-	case itemMultilineString:
-		return "String"
-	case itemRawMultilineString:
+	case itemString, itemRawString, itemMultilineString, itemRawMultilineString:
 		return "String"
 	case itemBool:
 		return "Bool"

vendor/github.com/BurntSushi/toml/parse.go

@@ -2,7 +2,6 @@ package toml
 
 import (
 	"fmt"
-	"log"
 	"strconv"
 	"strings"
 	"time"
@@ -81,7 +80,7 @@ func (p *parser) next() item {
 }
 
 func (p *parser) bug(format string, v ...interface{}) {
-	log.Panicf("BUG: %s\n\n", fmt.Sprintf(format, v...))
+	panic(fmt.Sprintf("BUG: "+format+"\n\n", v...))
 }
 
 func (p *parser) expect(typ itemType) item {
@@ -179,10 +178,18 @@ func (p *parser) value(it item) (interface{}, tomlType) {
 		}
 		p.bug("Expected boolean value, but got '%s'.", it.val)
 	case itemInteger:
-		num, err := strconv.ParseInt(it.val, 10, 64)
+		if !numUnderscoresOK(it.val) {
+			p.panicf("Invalid integer %q: underscores must be surrounded by digits",
+				it.val)
+		}
+		val := strings.Replace(it.val, "_", "", -1)
+		num, err := strconv.ParseInt(val, 10, 64)
 		if err != nil {
-			// See comment below for floats describing why we make a
-			// distinction between a bug and a user error.
+			// Distinguish integer values. Normally, it'd be a bug if the lexer
+			// provides an invalid integer, but it's possible that the number is
+			// out of range of valid values (which the lexer cannot determine).
+			// So mark the former as a bug but the latter as a legitimate user
+			// error.
 			if e, ok := err.(*strconv.NumError); ok &&
 				e.Err == strconv.ErrRange {
 
@@ -194,29 +201,57 @@ func (p *parser) value(it item) (interface{}, tomlType) {
 		}
 		return num, p.typeOfPrimitive(it)
 	case itemFloat:
-		num, err := strconv.ParseFloat(it.val, 64)
+		parts := strings.FieldsFunc(it.val, func(r rune) bool {
+			switch r {
+			case '.', 'e', 'E':
+				return true
+			}
+			return false
+		})
+		for _, part := range parts {
+			if !numUnderscoresOK(part) {
+				p.panicf("Invalid float %q: underscores must be "+
+					"surrounded by digits", it.val)
+			}
+		}
+		if !numPeriodsOK(it.val) {
+			// As a special case, numbers like '123.' or '1.e2',
+			// which are valid as far as Go/strconv are concerned,
+			// must be rejected because TOML says that a fractional
+			// part consists of '.' followed by 1+ digits.
+			p.panicf("Invalid float %q: '.' must be followed "+
+				"by one or more digits", it.val)
+		}
+		val := strings.Replace(it.val, "_", "", -1)
+		num, err := strconv.ParseFloat(val, 64)
 		if err != nil {
-			// Distinguish float values. Normally, it'd be a bug if the lexer
-			// provides an invalid float, but it's possible that the float is
-			// out of range of valid values (which the lexer cannot determine).
-			// So mark the former as a bug but the latter as a legitimate user
-			// error.
-			//
-			// This is also true for integers.
 			if e, ok := err.(*strconv.NumError); ok &&
 				e.Err == strconv.ErrRange {
 
 				p.panicf("Float '%s' is out of the range of 64-bit "+
 					"IEEE-754 floating-point numbers.", it.val)
 			} else {
-				p.bug("Expected float value, but got '%s'.", it.val)
+				p.panicf("Invalid float value: %q", it.val)
 			}
 		}
 		return num, p.typeOfPrimitive(it)
 	case itemDatetime:
-		t, err := time.Parse("2006-01-02T15:04:05Z", it.val)
-		if err != nil {
-			p.panicf("Invalid RFC3339 Zulu DateTime: '%s'.", it.val)
+		var t time.Time
+		var ok bool
+		var err error
+		for _, format := range []string{
+			"2006-01-02T15:04:05Z07:00",
+			"2006-01-02T15:04:05",
+			"2006-01-02",
+		} {
+			t, err = time.ParseInLocation(format, it.val, time.Local)
+			if err == nil {
+				ok = true
+				break
+			}
+		}
+		if !ok {
+			p.panicf("Invalid TOML Datetime: %q.", it.val)
 		}
 		return t, p.typeOfPrimitive(it)
 	case itemArray:
@@ -234,11 +269,75 @@ func (p *parser) value(it item) (interface{}, tomlType) {
 			types = append(types, typ)
 		}
 		return array, p.typeOfArray(types)
+	case itemInlineTableStart:
+		var (
+			hash         = make(map[string]interface{})
+			outerContext = p.context
+			outerKey     = p.currentKey
+		)
+
+		p.context = append(p.context, p.currentKey)
+		p.currentKey = ""
+		for it := p.next(); it.typ != itemInlineTableEnd; it = p.next() {
+			if it.typ != itemKeyStart {
+				p.bug("Expected key start but instead found %q, around line %d",
+					it.val, p.approxLine)
+			}
+			if it.typ == itemCommentStart {
+				p.expect(itemText)
+				continue
+			}
+
+			// retrieve key
+			k := p.next()
+			p.approxLine = k.line
+			kname := p.keyString(k)
+
+			// retrieve value
+			p.currentKey = kname
+			val, typ := p.value(p.next())
+			// make sure we keep metadata up to date
+			p.setType(kname, typ)
+			p.ordered = append(p.ordered, p.context.add(p.currentKey))
+			hash[kname] = val
+		}
+		p.context = outerContext
+		p.currentKey = outerKey
+		return hash, tomlHash
 	}
 	p.bug("Unexpected value type: %s", it.typ)
 	panic("unreachable")
 }
 
+// numUnderscoresOK checks whether each underscore in s is surrounded by
+// characters that are not underscores.
+func numUnderscoresOK(s string) bool {
+	accept := false
+	for _, r := range s {
+		if r == '_' {
+			if !accept {
+				return false
+			}
+			accept = false
+			continue
+		}
+		accept = true
+	}
+	return accept
+}
+
+// numPeriodsOK checks whether every period in s is followed by a digit.
+func numPeriodsOK(s string) bool {
+	period := false
+	for _, r := range s {
+		if period && !isDigit(r) {
+			return false
+		}
+		period = r == '.'
+	}
+	return !period
+}
+
 // establishContext sets the current context of the parser,
 // where the context is either a hash or an array of hashes. Which one is
 // set depends on the value of the `array` parameter.

vendor/github.com/BurntSushi/toml/session.vim

@@ -0,0 +1 @@
+au BufWritePost *.go silent!make tags > /dev/null 2>&1

vendor/github.com/BurntSushi/toml/type_fields.go

@@ -95,8 +95,8 @@ func typeFields(t reflect.Type) []field {
 				if sf.PkgPath != "" && !sf.Anonymous { // unexported
 					continue
 				}
-				name, _ := getOptions(sf.Tag.Get("toml"))
-				if name == "-" {
+				opts := getOptions(sf.Tag)
+				if opts.skip {
 					continue
 				}
 				index := make([]int, len(f.index)+1)
@@ -110,8 +110,9 @@ func typeFields(t reflect.Type) []field {
 				}
 
 				// Record found field and index sequence.
-				if name != "" || !sf.Anonymous || ft.Kind() != reflect.Struct {
-					tagged := name != ""
+				if opts.name != "" || !sf.Anonymous || ft.Kind() != reflect.Struct {
+					tagged := opts.name != ""
+					name := opts.name
 					if name == "" {
 						name = sf.Name
 					}

vendor/github.com/Microsoft/go-winio/.gitignore

@@ -0,0 +1 @@
+*.exe

vendor/github.com/Microsoft/go-winio/LICENSE

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2015 Klaus Post
+Copyright (c) 2015 Microsoft
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

vendor/github.com/Microsoft/go-winio/README.md

@@ -0,0 +1,22 @@
+# go-winio
+
+This repository contains utilities for efficiently performing Win32 IO operations in
+Go. Currently, this is focused on accessing named pipes and other file handles, and
+for using named pipes as a net transport.
+
+This code relies on IO completion ports to avoid blocking IO on system threads, allowing Go
+to reuse the thread to schedule another goroutine. This limits support to Windows Vista and
+newer operating systems. This is similar to the implementation of network sockets in Go's net
+package.
+
+Please see the LICENSE file for licensing information.
+
+This project has adopted the [Microsoft Open Source Code of
+Conduct](https://opensource.microsoft.com/codeofconduct/). For more information
+see the [Code of Conduct
+FAQ](https://opensource.microsoft.com/codeofconduct/faq/) or contact
+[opencode@microsoft.com](mailto:opencode@microsoft.com) with any additional
+questions or comments.
+
+Thanks to natefinch for the inspiration for this library. See https://github.com/natefinch/npipe
+for another named pipe implementation.

vendor/github.com/Microsoft/go-winio/archive/tar/LICENSE

@@ -1,4 +1,4 @@
-Copyright (c) 2009,2014 Google Inc. All rights reserved.
+Copyright (c) 2012 The Go Authors. All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are

vendor/github.com/Microsoft/go-winio/archive/tar/common.go

@@ -0,0 +1,344 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package tar implements access to tar archives.
+// It aims to cover most of the variations, including those produced
+// by GNU and BSD tars.
+//
+// References:
+//   http://www.freebsd.org/cgi/man.cgi?query=tar&sektion=5
+//   http://www.gnu.org/software/tar/manual/html_node/Standard.html
+//   http://pubs.opengroup.org/onlinepubs/9699919799/utilities/pax.html
+package tar
+
+import (
+	"bytes"
+	"errors"
+	"fmt"
+	"os"
+	"path"
+	"time"
+)
+
+const (
+	blockSize = 512
+
+	// Types
+	TypeReg           = '0'    // regular file
+	TypeRegA          = '\x00' // regular file
+	TypeLink          = '1'    // hard link
+	TypeSymlink       = '2'    // symbolic link
+	TypeChar          = '3'    // character device node
+	TypeBlock         = '4'    // block device node
+	TypeDir           = '5'    // directory
+	TypeFifo          = '6'    // fifo node
+	TypeCont          = '7'    // reserved
+	TypeXHeader       = 'x'    // extended header
+	TypeXGlobalHeader = 'g'    // global extended header
+	TypeGNULongName   = 'L'    // Next file has a long name
+	TypeGNULongLink   = 'K'    // Next file symlinks to a file w/ a long name
+	TypeGNUSparse     = 'S'    // sparse file
+)
+
+// A Header represents a single header in a tar archive.
+// Some fields may not be populated.
+type Header struct {
+	Name         string    // name of header file entry
+	Mode         int64     // permission and mode bits
+	Uid          int       // user id of owner
+	Gid          int       // group id of owner
+	Size         int64     // length in bytes
+	ModTime      time.Time // modified time
+	Typeflag     byte      // type of header entry
+	Linkname     string    // target name of link
+	Uname        string    // user name of owner
+	Gname        string    // group name of owner
+	Devmajor     int64     // major number of character or block device
+	Devminor     int64     // minor number of character or block device
+	AccessTime   time.Time // access time
+	ChangeTime   time.Time // status change time
+	CreationTime time.Time // creation time
+	Xattrs       map[string]string
+	Winheaders   map[string]string
+}
+
+// File name constants from the tar spec.
+const (
+	fileNameSize       = 100 // Maximum number of bytes in a standard tar name.
+	fileNamePrefixSize = 155 // Maximum number of ustar extension bytes.
+)
+
+// FileInfo returns an os.FileInfo for the Header.
+func (h *Header) FileInfo() os.FileInfo {
+	return headerFileInfo{h}
+}
+
+// headerFileInfo implements os.FileInfo.
+type headerFileInfo struct {
+	h *Header
+}
+
+func (fi headerFileInfo) Size() int64        { return fi.h.Size }
+func (fi headerFileInfo) IsDir() bool        { return fi.Mode().IsDir() }
+func (fi headerFileInfo) ModTime() time.Time { return fi.h.ModTime }
+func (fi headerFileInfo) Sys() interface{}   { return fi.h }
+
+// Name returns the base name of the file.
+func (fi headerFileInfo) Name() string {
+	if fi.IsDir() {
+		return path.Base(path.Clean(fi.h.Name))
+	}
+	return path.Base(fi.h.Name)
+}
+
+// Mode returns the permission and mode bits for the headerFileInfo.
+func (fi headerFileInfo) Mode() (mode os.FileMode) {
+	// Set file permission bits.
+	mode = os.FileMode(fi.h.Mode).Perm()
+
+	// Set setuid, setgid and sticky bits.
+	if fi.h.Mode&c_ISUID != 0 {
+		// setuid
+		mode |= os.ModeSetuid
+	}
+	if fi.h.Mode&c_ISGID != 0 {
+		// setgid
+		mode |= os.ModeSetgid
+	}
+	if fi.h.Mode&c_ISVTX != 0 {
+		// sticky
+		mode |= os.ModeSticky
+	}
+
+	// Set file mode bits.
+	// clear perm, setuid, setgid and sticky bits.
+	m := os.FileMode(fi.h.Mode) &^ 07777
+	if m == c_ISDIR {
+		// directory
+		mode |= os.ModeDir
+	}
+	if m == c_ISFIFO {
+		// named pipe (FIFO)
+		mode |= os.ModeNamedPipe
+	}
+	if m == c_ISLNK {
+		// symbolic link
+		mode |= os.ModeSymlink
+	}
+	if m == c_ISBLK {
+		// device file
+		mode |= os.ModeDevice
+	}
+	if m == c_ISCHR {
+		// Unix character device
+		mode |= os.ModeDevice
+		mode |= os.ModeCharDevice
+	}
+	if m == c_ISSOCK {
+		// Unix domain socket
+		mode |= os.ModeSocket
+	}
+
+	switch fi.h.Typeflag {
+	case TypeSymlink:
+		// symbolic link
+		mode |= os.ModeSymlink
+	case TypeChar:
+		// character device node
+		mode |= os.ModeDevice
+		mode |= os.ModeCharDevice
+	case TypeBlock:
+		// block device node
+		mode |= os.ModeDevice
+	case TypeDir:
+		// directory
+		mode |= os.ModeDir
+	case TypeFifo:
+		// fifo node
+		mode |= os.ModeNamedPipe
+	}
+
+	return mode
+}
+
+// sysStat, if non-nil, populates h from system-dependent fields of fi.
+var sysStat func(fi os.FileInfo, h *Header) error
+
+// Mode constants from the tar spec.
+const (
+	c_ISUID  = 04000   // Set uid
+	c_ISGID  = 02000   // Set gid
+	c_ISVTX  = 01000   // Save text (sticky bit)
+	c_ISDIR  = 040000  // Directory
+	c_ISFIFO = 010000  // FIFO
+	c_ISREG  = 0100000 // Regular file
+	c_ISLNK  = 0120000 // Symbolic link
+	c_ISBLK  = 060000  // Block special file
+	c_ISCHR  = 020000  // Character special file
+	c_ISSOCK = 0140000 // Socket
+)
+
+// Keywords for the PAX Extended Header
+const (
+	paxAtime        = "atime"
+	paxCharset      = "charset"
+	paxComment      = "comment"
+	paxCtime        = "ctime" // please note that ctime is not a valid pax header.
+	paxCreationTime = "LIBARCHIVE.creationtime"
+	paxGid          = "gid"
+	paxGname        = "gname"
+	paxLinkpath     = "linkpath"
+	paxMtime        = "mtime"
+	paxPath         = "path"
+	paxSize         = "size"
+	paxUid          = "uid"
+	paxUname        = "uname"
+	paxXattr        = "SCHILY.xattr."
+	paxWindows      = "MSWINDOWS."
+	paxNone         = ""
+)
+
+// FileInfoHeader creates a partially-populated Header from fi.
+// If fi describes a symlink, FileInfoHeader records link as the link target.
+// If fi describes a directory, a slash is appended to the name.
+// Because os.FileInfo's Name method returns only the base name of
+// the file it describes, it may be necessary to modify the Name field
+// of the returned header to provide the full path name of the file.
+func FileInfoHeader(fi os.FileInfo, link string) (*Header, error) {
+	if fi == nil {
+		return nil, errors.New("tar: FileInfo is nil")
+	}
+	fm := fi.Mode()
+	h := &Header{
+		Name:    fi.Name(),
+		ModTime: fi.ModTime(),
+		Mode:    int64(fm.Perm()), // or'd with c_IS* constants later
+	}
+	switch {
+	case fm.IsRegular():
+		h.Mode |= c_ISREG
+		h.Typeflag = TypeReg
+		h.Size = fi.Size()
+	case fi.IsDir():
+		h.Typeflag = TypeDir
+		h.Mode |= c_ISDIR
+		h.Name += "/"
+	case fm&os.ModeSymlink != 0:
+		h.Typeflag = TypeSymlink
+		h.Mode |= c_ISLNK
+		h.Linkname = link
+	case fm&os.ModeDevice != 0:
+		if fm&os.ModeCharDevice != 0 {
+			h.Mode |= c_ISCHR
+			h.Typeflag = TypeChar
+		} else {
+			h.Mode |= c_ISBLK
+			h.Typeflag = TypeBlock
+		}
+	case fm&os.ModeNamedPipe != 0:
+		h.Typeflag = TypeFifo
+		h.Mode |= c_ISFIFO
+	case fm&os.ModeSocket != 0:
+		h.Mode |= c_ISSOCK
+	default:
+		return nil, fmt.Errorf("archive/tar: unknown file mode %v", fm)
+	}
+	if fm&os.ModeSetuid != 0 {
+		h.Mode |= c_ISUID
+	}
+	if fm&os.ModeSetgid != 0 {
+		h.Mode |= c_ISGID
+	}
+	if fm&os.ModeSticky != 0 {
+		h.Mode |= c_ISVTX
+	}
+	// If possible, populate additional fields from OS-specific
+	// FileInfo fields.
+	if sys, ok := fi.Sys().(*Header); ok {
+		// This FileInfo came from a Header (not the OS). Use the
+		// original Header to populate all remaining fields.
+		h.Uid = sys.Uid
+		h.Gid = sys.Gid
+		h.Uname = sys.Uname
+		h.Gname = sys.Gname
+		h.AccessTime = sys.AccessTime
+		h.ChangeTime = sys.ChangeTime
+		if sys.Xattrs != nil {
+			h.Xattrs = make(map[string]string)
+			for k, v := range sys.Xattrs {
+				h.Xattrs[k] = v
+			}
+		}
+		if sys.Typeflag == TypeLink {
+			// hard link
+			h.Typeflag = TypeLink
+			h.Size = 0
+			h.Linkname = sys.Linkname
+		}
+	}
+	if sysStat != nil {
+		return h, sysStat(fi, h)
+	}
+	return h, nil
+}
+
+var zeroBlock = make([]byte, blockSize)
+
+// POSIX specifies a sum of the unsigned byte values, but the Sun tar uses signed byte values.
+// We compute and return both.
+func checksum(header []byte) (unsigned int64, signed int64) {
+	for i := 0; i < len(header); i++ {
+		if i == 148 {
+			// The chksum field (header[148:156]) is special: it should be treated as space bytes.
+			unsigned += ' ' * 8
+			signed += ' ' * 8
+			i += 7
+			continue
+		}
+		unsigned += int64(header[i])
+		signed += int64(int8(header[i]))
+	}
+	return
+}
+
+type slicer []byte
+
+func (sp *slicer) next(n int) (b []byte) {
+	s := *sp
+	b, *sp = s[0:n], s[n:]
+	return
+}
+
+func isASCII(s string) bool {
+	for _, c := range s {
+		if c >= 0x80 {
+			return false
+		}
+	}
+	return true
+}
+
+func toASCII(s string) string {
+	if isASCII(s) {
+		return s
+	}
+	var buf bytes.Buffer
+	for _, c := range s {
+		if c < 0x80 {
+			buf.WriteByte(byte(c))
+		}
+	}
+	return buf.String()
+}
+
+// isHeaderOnlyType checks if the given type flag is of the type that has no
+// data section even if a size is specified.
+func isHeaderOnlyType(flag byte) bool {
+	switch flag {
+	case TypeLink, TypeSymlink, TypeChar, TypeBlock, TypeDir, TypeFifo:
+		return true
+	default:
+		return false
+	}
+}

vendor/github.com/Microsoft/go-winio/archive/tar/stat_unix.go

@@ -0,0 +1,32 @@
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build linux darwin dragonfly freebsd openbsd netbsd solaris
+
+package tar
+
+import (
+	"os"
+	"syscall"
+)
+
+func init() {
+	sysStat = statUnix
+}
+
+func statUnix(fi os.FileInfo, h *Header) error {
+	sys, ok := fi.Sys().(*syscall.Stat_t)
+	if !ok {
+		return nil
+	}
+	h.Uid = int(sys.Uid)
+	h.Gid = int(sys.Gid)
+	// TODO(bradfitz): populate username & group.  os/user
+	// doesn't cache LookupId lookups, and lacks group
+	// lookup functions.
+	h.AccessTime = statAtime(sys)
+	h.ChangeTime = statCtime(sys)
+	// TODO(bradfitz): major/minor device numbers?
+	return nil
+}

vendor/github.com/Microsoft/go-winio/archive/tar/writer.go

@@ -0,0 +1,444 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package tar
+
+// TODO(dsymonds):
+// - catch more errors (no first header, etc.)
+
+import (
+	"bytes"
+	"errors"
+	"fmt"
+	"io"
+	"path"
+	"sort"
+	"strconv"
+	"strings"
+	"time"
+)
+
+var (
+	ErrWriteTooLong    = errors.New("archive/tar: write too long")
+	ErrFieldTooLong    = errors.New("archive/tar: header field too long")
+	ErrWriteAfterClose = errors.New("archive/tar: write after close")
+	errInvalidHeader   = errors.New("archive/tar: header field too long or contains invalid values")
+)
+
+// A Writer provides sequential writing of a tar archive in POSIX.1 format.
+// A tar archive consists of a sequence of files.
+// Call WriteHeader to begin a new file, and then call Write to supply that file's data,
+// writing at most hdr.Size bytes in total.
+type Writer struct {
+	w          io.Writer
+	err        error
+	nb         int64 // number of unwritten bytes for current file entry
+	pad        int64 // amount of padding to write after current file entry
+	closed     bool
+	usedBinary bool            // whether the binary numeric field extension was used
+	preferPax  bool            // use pax header instead of binary numeric header
+	hdrBuff    [blockSize]byte // buffer to use in writeHeader when writing a regular header
+	paxHdrBuff [blockSize]byte // buffer to use in writeHeader when writing a pax header
+}
+
+type formatter struct {
+	err error // Last error seen
+}
+
+// NewWriter creates a new Writer writing to w.
+func NewWriter(w io.Writer) *Writer { return &Writer{w: w, preferPax: true} }
+
+// Flush finishes writing the current file (optional).
+func (tw *Writer) Flush() error {
+	if tw.nb > 0 {
+		tw.err = fmt.Errorf("archive/tar: missed writing %d bytes", tw.nb)
+		return tw.err
+	}
+
+	n := tw.nb + tw.pad
+	for n > 0 && tw.err == nil {
+		nr := n
+		if nr > blockSize {
+			nr = blockSize
+		}
+		var nw int
+		nw, tw.err = tw.w.Write(zeroBlock[0:nr])
+		n -= int64(nw)
+	}
+	tw.nb = 0
+	tw.pad = 0
+	return tw.err
+}
+
+// Write s into b, terminating it with a NUL if there is room.
+func (f *formatter) formatString(b []byte, s string) {
+	if len(s) > len(b) {
+		f.err = ErrFieldTooLong
+		return
+	}
+	ascii := toASCII(s)
+	copy(b, ascii)
+	if len(ascii) < len(b) {
+		b[len(ascii)] = 0
+	}
+}
+
+// Encode x as an octal ASCII string and write it into b with leading zeros.
+func (f *formatter) formatOctal(b []byte, x int64) {
+	s := strconv.FormatInt(x, 8)
+	// leading zeros, but leave room for a NUL.
+	for len(s)+1 < len(b) {
+		s = "0" + s
+	}
+	f.formatString(b, s)
+}
+
+// fitsInBase256 reports whether x can be encoded into n bytes using base-256
+// encoding. Unlike octal encoding, base-256 encoding does not require that the
+// string ends with a NUL character. Thus, all n bytes are available for output.
+//
+// If operating in binary mode, this assumes strict GNU binary mode; which means
+// that the first byte can only be either 0x80 or 0xff. Thus, the first byte is
+// equivalent to the sign bit in two's complement form.
+func fitsInBase256(n int, x int64) bool {
+	var binBits = uint(n-1) * 8
+	return n >= 9 || (x >= -1<<binBits && x < 1<<binBits)
+}
+
+// Write x into b, as binary (GNUtar/star extension).
+func (f *formatter) formatNumeric(b []byte, x int64) {
+	if fitsInBase256(len(b), x) {
+		for i := len(b) - 1; i >= 0; i-- {
+			b[i] = byte(x)
+			x >>= 8
+		}
+		b[0] |= 0x80 // Highest bit indicates binary format
+		return
+	}
+
+	f.formatOctal(b, 0) // Last resort, just write zero
+	f.err = ErrFieldTooLong
+}
+
+var (
+	minTime = time.Unix(0, 0)
+	// There is room for 11 octal digits (33 bits) of mtime.
+	maxTime = minTime.Add((1<<33 - 1) * time.Second)
+)
+
+// WriteHeader writes hdr and prepares to accept the file's contents.
+// WriteHeader calls Flush if it is not the first header.
+// Calling after a Close will return ErrWriteAfterClose.
+func (tw *Writer) WriteHeader(hdr *Header) error {
+	return tw.writeHeader(hdr, true)
+}
+
+// WriteHeader writes hdr and prepares to accept the file's contents.
+// WriteHeader calls Flush if it is not the first header.
+// Calling after a Close will return ErrWriteAfterClose.
+// As this method is called internally by writePax header to allow it to
+// suppress writing the pax header.
+func (tw *Writer) writeHeader(hdr *Header, allowPax bool) error {
+	if tw.closed {
+		return ErrWriteAfterClose
+	}
+	if tw.err == nil {
+		tw.Flush()
+	}
+	if tw.err != nil {
+		return tw.err
+	}
+
+	// a map to hold pax header records, if any are needed
+	paxHeaders := make(map[string]string)
+
+	// TODO(shanemhansen): we might want to use PAX headers for
+	// subsecond time resolution, but for now let's just capture
+	// too long fields or non ascii characters
+
+	var f formatter
+	var header []byte
+
+	// We need to select which scratch buffer to use carefully,
+	// since this method is called recursively to write PAX headers.
+	// If allowPax is true, this is the non-recursive call, and we will use hdrBuff.
+	// If allowPax is false, we are being called by writePAXHeader, and hdrBuff is
+	// already being used by the non-recursive call, so we must use paxHdrBuff.
+	header = tw.hdrBuff[:]
+	if !allowPax {
+		header = tw.paxHdrBuff[:]
+	}
+	copy(header, zeroBlock)
+	s := slicer(header)
+
+	// Wrappers around formatter that automatically sets paxHeaders if the
+	// argument extends beyond the capacity of the input byte slice.
+	var formatString = func(b []byte, s string, paxKeyword string) {
+		needsPaxHeader := paxKeyword != paxNone && len(s) > len(b) || !isASCII(s)
+		if needsPaxHeader {
+			paxHeaders[paxKeyword] = s
+			return
+		}
+		f.formatString(b, s)
+	}
+	var formatNumeric = func(b []byte, x int64, paxKeyword string) {
+		// Try octal first.
+		s := strconv.FormatInt(x, 8)
+		if len(s) < len(b) {
+			f.formatOctal(b, x)
+			return
+		}
+
+		// If it is too long for octal, and PAX is preferred, use a PAX header.
+		if paxKeyword != paxNone && tw.preferPax {
+			f.formatOctal(b, 0)
+			s := strconv.FormatInt(x, 10)
+			paxHeaders[paxKeyword] = s
+			return
+		}
+
+		tw.usedBinary = true
+		f.formatNumeric(b, x)
+	}
+	var formatTime = func(b []byte, t time.Time, paxKeyword string) {
+		var unixTime int64
+		if !t.Before(minTime) && !t.After(maxTime) {
+			unixTime = t.Unix()
+		}
+		formatNumeric(b, unixTime, paxNone)
+
+		// Write a PAX header if the time didn't fit precisely.
+		if paxKeyword != "" && tw.preferPax && allowPax && (t.Nanosecond() != 0 || !t.Before(minTime) || !t.After(maxTime)) {
+			paxHeaders[paxKeyword] = formatPAXTime(t)
+		}
+	}
+
+	// keep a reference to the filename to allow to overwrite it later if we detect that we can use ustar longnames instead of pax
+	pathHeaderBytes := s.next(fileNameSize)
+
+	formatString(pathHeaderBytes, hdr.Name, paxPath)
+
+	f.formatOctal(s.next(8), hdr.Mode)               // 100:108
+	formatNumeric(s.next(8), int64(hdr.Uid), paxUid) // 108:116
+	formatNumeric(s.next(8), int64(hdr.Gid), paxGid) // 116:124
+	formatNumeric(s.next(12), hdr.Size, paxSize)     // 124:136
+	formatTime(s.next(12), hdr.ModTime, paxMtime)    // 136:148
+	s.next(8)                                        // chksum (148:156)
+	s.next(1)[0] = hdr.Typeflag                      // 156:157
+
+	formatString(s.next(100), hdr.Linkname, paxLinkpath)
+
+	copy(s.next(8), []byte("ustar\x0000"))          // 257:265
+	formatString(s.next(32), hdr.Uname, paxUname)   // 265:297
+	formatString(s.next(32), hdr.Gname, paxGname)   // 297:329
+	formatNumeric(s.next(8), hdr.Devmajor, paxNone) // 329:337
+	formatNumeric(s.next(8), hdr.Devminor, paxNone) // 337:345
+
+	// keep a reference to the prefix to allow to overwrite it later if we detect that we can use ustar longnames instead of pax
+	prefixHeaderBytes := s.next(155)
+	formatString(prefixHeaderBytes, "", paxNone) // 345:500  prefix
+
+	// Use the GNU magic instead of POSIX magic if we used any GNU extensions.
+	if tw.usedBinary {
+		copy(header[257:265], []byte("ustar  \x00"))
+	}
+
+	_, paxPathUsed := paxHeaders[paxPath]
+	// try to use a ustar header when only the name is too long
+	if !tw.preferPax && len(paxHeaders) == 1 && paxPathUsed {
+		prefix, suffix, ok := splitUSTARPath(hdr.Name)
+		if ok {
+			// Since we can encode in USTAR format, disable PAX header.
+			delete(paxHeaders, paxPath)
+
+			// Update the path fields
+			formatString(pathHeaderBytes, suffix, paxNone)
+			formatString(prefixHeaderBytes, prefix, paxNone)
+		}
+	}
+
+	// The chksum field is terminated by a NUL and a space.
+	// This is different from the other octal fields.
+	chksum, _ := checksum(header)
+	f.formatOctal(header[148:155], chksum) // Never fails
+	header[155] = ' '
+
+	// Check if there were any formatting errors.
+	if f.err != nil {
+		tw.err = f.err
+		return tw.err
+	}
+
+	if allowPax {
+		if !hdr.AccessTime.IsZero() {
+			paxHeaders[paxAtime] = formatPAXTime(hdr.AccessTime)
+		}
+		if !hdr.ChangeTime.IsZero() {
+			paxHeaders[paxCtime] = formatPAXTime(hdr.ChangeTime)
+		}
+		if !hdr.CreationTime.IsZero() {
+			paxHeaders[paxCreationTime] = formatPAXTime(hdr.CreationTime)
+		}
+		for k, v := range hdr.Xattrs {
+			paxHeaders[paxXattr+k] = v
+		}
+		for k, v := range hdr.Winheaders {
+			paxHeaders[paxWindows+k] = v
+		}
+	}
+
+	if len(paxHeaders) > 0 {
+		if !allowPax {
+			return errInvalidHeader
+		}
+		if err := tw.writePAXHeader(hdr, paxHeaders); err != nil {
+			return err
+		}
+	}
+	tw.nb = int64(hdr.Size)
+	tw.pad = (blockSize - (tw.nb % blockSize)) % blockSize
+
+	_, tw.err = tw.w.Write(header)
+	return tw.err
+}
+
+func formatPAXTime(t time.Time) string {
+	sec := t.Unix()
+	usec := t.Nanosecond()
+	s := strconv.FormatInt(sec, 10)
+	if usec != 0 {
+		s = fmt.Sprintf("%s.%09d", s, usec)
+	}
+	return s
+}
+
+// splitUSTARPath splits a path according to USTAR prefix and suffix rules.
+// If the path is not splittable, then it will return ("", "", false).
+func splitUSTARPath(name string) (prefix, suffix string, ok bool) {
+	length := len(name)
+	if length <= fileNameSize || !isASCII(name) {
+		return "", "", false
+	} else if length > fileNamePrefixSize+1 {
+		length = fileNamePrefixSize + 1
+	} else if name[length-1] == '/' {
+		length--
+	}
+
+	i := strings.LastIndex(name[:length], "/")
+	nlen := len(name) - i - 1 // nlen is length of suffix
+	plen := i                 // plen is length of prefix
+	if i <= 0 || nlen > fileNameSize || nlen == 0 || plen > fileNamePrefixSize {
+		return "", "", false
+	}
+	return name[:i], name[i+1:], true
+}
+
+// writePaxHeader writes an extended pax header to the
+// archive.
+func (tw *Writer) writePAXHeader(hdr *Header, paxHeaders map[string]string) error {
+	// Prepare extended header
+	ext := new(Header)
+	ext.Typeflag = TypeXHeader
+	// Setting ModTime is required for reader parsing to
+	// succeed, and seems harmless enough.
+	ext.ModTime = hdr.ModTime
+	// The spec asks that we namespace our pseudo files
+	// with the current pid.  However, this results in differing outputs
+	// for identical inputs.  As such, the constant 0 is now used instead.
+	// golang.org/issue/12358
+	dir, file := path.Split(hdr.Name)
+	fullName := path.Join(dir, "PaxHeaders.0", file)
+
+	ascii := toASCII(fullName)
+	if len(ascii) > 100 {
+		ascii = ascii[:100]
+	}
+	ext.Name = ascii
+	// Construct the body
+	var buf bytes.Buffer
+
+	// Keys are sorted before writing to body to allow deterministic output.
+	var keys []string
+	for k := range paxHeaders {
+		keys = append(keys, k)
+	}
+	sort.Strings(keys)
+
+	for _, k := range keys {
+		fmt.Fprint(&buf, formatPAXRecord(k, paxHeaders[k]))
+	}
+
+	ext.Size = int64(len(buf.Bytes()))
+	if err := tw.writeHeader(ext, false); err != nil {
+		return err
+	}
+	if _, err := tw.Write(buf.Bytes()); err != nil {
+		return err
+	}
+	if err := tw.Flush(); err != nil {
+		return err
+	}
+	return nil
+}
+
+// formatPAXRecord formats a single PAX record, prefixing it with the
+// appropriate length.
+func formatPAXRecord(k, v string) string {
+	const padding = 3 // Extra padding for ' ', '=', and '\n'
+	size := len(k) + len(v) + padding
+	size += len(strconv.Itoa(size))
+	record := fmt.Sprintf("%d %s=%s\n", size, k, v)
+
+	// Final adjustment if adding size field increased the record size.
+	if len(record) != size {
+		size = len(record)
+		record = fmt.Sprintf("%d %s=%s\n", size, k, v)
+	}
+	return record
+}
+
+// Write writes to the current entry in the tar archive.
+// Write returns the error ErrWriteTooLong if more than
+// hdr.Size bytes are written after WriteHeader.
+func (tw *Writer) Write(b []byte) (n int, err error) {
+	if tw.closed {
+		err = ErrWriteAfterClose
+		return
+	}
+	overwrite := false
+	if int64(len(b)) > tw.nb {
+		b = b[0:tw.nb]
+		overwrite = true
+	}
+	n, err = tw.w.Write(b)
+	tw.nb -= int64(n)
+	if err == nil && overwrite {
+		err = ErrWriteTooLong
+		return
+	}
+	tw.err = err
+	return
+}
+
+// Close closes the tar archive, flushing any unwritten
+// data to the underlying writer.
+func (tw *Writer) Close() error {
+	if tw.err != nil || tw.closed {
+		return tw.err
+	}
+	tw.Flush()
+	tw.closed = true
+	if tw.err != nil {
+		return tw.err
+	}
+
+	// trailer: two zero blocks
+	for i := 0; i < 2; i++ {
+		_, tw.err = tw.w.Write(zeroBlock)
+		if tw.err != nil {
+			break
+		}
+	}
+	return tw.err
+}

vendor/github.com/Microsoft/go-winio/backup.go

@@ -0,0 +1,280 @@
+// +build windows
+
+package winio
+
+import (
+	"encoding/binary"
+	"errors"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"os"
+	"runtime"
+	"syscall"
+	"unicode/utf16"
+)
+
+//sys backupRead(h syscall.Handle, b []byte, bytesRead *uint32, abort bool, processSecurity bool, context *uintptr) (err error) = BackupRead
+//sys backupWrite(h syscall.Handle, b []byte, bytesWritten *uint32, abort bool, processSecurity bool, context *uintptr) (err error) = BackupWrite
+
+const (
+	BackupData = uint32(iota + 1)
+	BackupEaData
+	BackupSecurity
+	BackupAlternateData
+	BackupLink
+	BackupPropertyData
+	BackupObjectId
+	BackupReparseData
+	BackupSparseBlock
+	BackupTxfsData
+)
+
+const (
+	StreamSparseAttributes = uint32(8)
+)
+
+const (
+	WRITE_DAC              = 0x40000
+	WRITE_OWNER            = 0x80000
+	ACCESS_SYSTEM_SECURITY = 0x1000000
+)
+
+// BackupHeader represents a backup stream of a file.
+type BackupHeader struct {
+	Id         uint32 // The backup stream ID
+	Attributes uint32 // Stream attributes
+	Size       int64  // The size of the stream in bytes
+	Name       string // The name of the stream (for BackupAlternateData only).
+	Offset     int64  // The offset of the stream in the file (for BackupSparseBlock only).
+}
+
+type win32StreamId struct {
+	StreamId   uint32
+	Attributes uint32
+	Size       uint64
+	NameSize   uint32
+}
+
+// BackupStreamReader reads from a stream produced by the BackupRead Win32 API and produces a series
+// of BackupHeader values.
+type BackupStreamReader struct {
+	r         io.Reader
+	bytesLeft int64
+}
+
+// NewBackupStreamReader produces a BackupStreamReader from any io.Reader.
+func NewBackupStreamReader(r io.Reader) *BackupStreamReader {
+	return &BackupStreamReader{r, 0}
+}
+
+// Next returns the next backup stream and prepares for calls to Read(). It skips the remainder of the current stream if
+// it was not completely read.
+func (r *BackupStreamReader) Next() (*BackupHeader, error) {
+	if r.bytesLeft > 0 {
+		if s, ok := r.r.(io.Seeker); ok {
+			// Make sure Seek on io.SeekCurrent sometimes succeeds
+			// before trying the actual seek.
+			if _, err := s.Seek(0, io.SeekCurrent); err == nil {
+				if _, err = s.Seek(r.bytesLeft, io.SeekCurrent); err != nil {
+					return nil, err
+				}
+				r.bytesLeft = 0
+			}
+		}
+		if _, err := io.Copy(ioutil.Discard, r); err != nil {
+			return nil, err
+		}
+	}
+	var wsi win32StreamId
+	if err := binary.Read(r.r, binary.LittleEndian, &wsi); err != nil {
+		return nil, err
+	}
+	hdr := &BackupHeader{
+		Id:         wsi.StreamId,
+		Attributes: wsi.Attributes,
+		Size:       int64(wsi.Size),
+	}
+	if wsi.NameSize != 0 {
+		name := make([]uint16, int(wsi.NameSize/2))
+		if err := binary.Read(r.r, binary.LittleEndian, name); err != nil {
+			return nil, err
+		}
+		hdr.Name = syscall.UTF16ToString(name)
+	}
+	if wsi.StreamId == BackupSparseBlock {
+		if err := binary.Read(r.r, binary.LittleEndian, &hdr.Offset); err != nil {
+			return nil, err
+		}
+		hdr.Size -= 8
+	}
+	r.bytesLeft = hdr.Size
+	return hdr, nil
+}
+
+// Read reads from the current backup stream.
+func (r *BackupStreamReader) Read(b []byte) (int, error) {
+	if r.bytesLeft == 0 {
+		return 0, io.EOF
+	}
+	if int64(len(b)) > r.bytesLeft {
+		b = b[:r.bytesLeft]
+	}
+	n, err := r.r.Read(b)
+	r.bytesLeft -= int64(n)
+	if err == io.EOF {
+		err = io.ErrUnexpectedEOF
+	} else if r.bytesLeft == 0 && err == nil {
+		err = io.EOF
+	}
+	return n, err
+}
+
+// BackupStreamWriter writes a stream compatible with the BackupWrite Win32 API.
+type BackupStreamWriter struct {
+	w         io.Writer
+	bytesLeft int64
+}
+
+// NewBackupStreamWriter produces a BackupStreamWriter on top of an io.Writer.
+func NewBackupStreamWriter(w io.Writer) *BackupStreamWriter {
+	return &BackupStreamWriter{w, 0}
+}
+
+// WriteHeader writes the next backup stream header and prepares for calls to Write().
+func (w *BackupStreamWriter) WriteHeader(hdr *BackupHeader) error {
+	if w.bytesLeft != 0 {
+		return fmt.Errorf("missing %d bytes", w.bytesLeft)
+	}
+	name := utf16.Encode([]rune(hdr.Name))
+	wsi := win32StreamId{
+		StreamId:   hdr.Id,
+		Attributes: hdr.Attributes,
+		Size:       uint64(hdr.Size),
+		NameSize:   uint32(len(name) * 2),
+	}
+	if hdr.Id == BackupSparseBlock {
+		// Include space for the int64 block offset
+		wsi.Size += 8
+	}
+	if err := binary.Write(w.w, binary.LittleEndian, &wsi); err != nil {
+		return err
+	}
+	if len(name) != 0 {
+		if err := binary.Write(w.w, binary.LittleEndian, name); err != nil {
+			return err
+		}
+	}
+	if hdr.Id == BackupSparseBlock {
+		if err := binary.Write(w.w, binary.LittleEndian, hdr.Offset); err != nil {
+			return err
+		}
+	}
+	w.bytesLeft = hdr.Size
+	return nil
+}
+
+// Write writes to the current backup stream.
+func (w *BackupStreamWriter) Write(b []byte) (int, error) {
+	if w.bytesLeft < int64(len(b)) {
+		return 0, fmt.Errorf("too many bytes by %d", int64(len(b))-w.bytesLeft)
+	}
+	n, err := w.w.Write(b)
+	w.bytesLeft -= int64(n)
+	return n, err
+}
+
+// BackupFileReader provides an io.ReadCloser interface on top of the BackupRead Win32 API.
+type BackupFileReader struct {
+	f               *os.File
+	includeSecurity bool
+	ctx             uintptr
+}
+
+// NewBackupFileReader returns a new BackupFileReader from a file handle. If includeSecurity is true,
+// Read will attempt to read the security descriptor of the file.
+func NewBackupFileReader(f *os.File, includeSecurity bool) *BackupFileReader {
+	r := &BackupFileReader{f, includeSecurity, 0}
+	return r
+}
+
+// Read reads a backup stream from the file by calling the Win32 API BackupRead().
+func (r *BackupFileReader) Read(b []byte) (int, error) {
+	var bytesRead uint32
+	err := backupRead(syscall.Handle(r.f.Fd()), b, &bytesRead, false, r.includeSecurity, &r.ctx)
+	if err != nil {
+		return 0, &os.PathError{"BackupRead", r.f.Name(), err}
+	}
+	runtime.KeepAlive(r.f)
+	if bytesRead == 0 {
+		return 0, io.EOF
+	}
+	return int(bytesRead), nil
+}
+
+// Close frees Win32 resources associated with the BackupFileReader. It does not close
+// the underlying file.
+func (r *BackupFileReader) Close() error {
+	if r.ctx != 0 {
+		backupRead(syscall.Handle(r.f.Fd()), nil, nil, true, false, &r.ctx)
+		runtime.KeepAlive(r.f)
+		r.ctx = 0
+	}
+	return nil
+}
+
+// BackupFileWriter provides an io.WriteCloser interface on top of the BackupWrite Win32 API.
+type BackupFileWriter struct {
+	f               *os.File
+	includeSecurity bool
+	ctx             uintptr
+}
+
+// NewBackupFileWriter returns a new BackupFileWriter from a file handle. If includeSecurity is true,
+// Write() will attempt to restore the security descriptor from the stream.
+func NewBackupFileWriter(f *os.File, includeSecurity bool) *BackupFileWriter {
+	w := &BackupFileWriter{f, includeSecurity, 0}
+	return w
+}
+
+// Write restores a portion of the file using the provided backup stream.
+func (w *BackupFileWriter) Write(b []byte) (int, error) {
+	var bytesWritten uint32
+	err := backupWrite(syscall.Handle(w.f.Fd()), b, &bytesWritten, false, w.includeSecurity, &w.ctx)
+	if err != nil {
+		return 0, &os.PathError{"BackupWrite", w.f.Name(), err}
+	}
+	runtime.KeepAlive(w.f)
+	if int(bytesWritten) != len(b) {
+		return int(bytesWritten), errors.New("not all bytes could be written")
+	}
+	return len(b), nil
+}
+
+// Close frees Win32 resources associated with the BackupFileWriter. It does not
+// close the underlying file.
+func (w *BackupFileWriter) Close() error {
+	if w.ctx != 0 {
+		backupWrite(syscall.Handle(w.f.Fd()), nil, nil, true, false, &w.ctx)
+		runtime.KeepAlive(w.f)
+		w.ctx = 0
+	}
+	return nil
+}
+
+// OpenForBackup opens a file or directory, potentially skipping access checks if the backup
+// or restore privileges have been acquired.
+//
+// If the file opened was a directory, it cannot be used with Readdir().
+func OpenForBackup(path string, access uint32, share uint32, createmode uint32) (*os.File, error) {
+	winPath, err := syscall.UTF16FromString(path)
+	if err != nil {
+		return nil, err
+	}
+	h, err := syscall.CreateFile(&winPath[0], access, share, nil, createmode, syscall.FILE_FLAG_BACKUP_SEMANTICS|syscall.FILE_FLAG_OPEN_REPARSE_POINT, 0)
+	if err != nil {
+		err = &os.PathError{Op: "open", Path: path, Err: err}
+		return nil, err
+	}
+	return os.NewFile(uintptr(h), path), nil
+}

vendor/github.com/Microsoft/go-winio/backuptar/noop.go

@@ -0,0 +1,4 @@
+// +build !windows
+// This file only exists to allow go get on non-Windows platforms.
+
+package backuptar

vendor/github.com/Microsoft/go-winio/backuptar/tar.go

@@ -0,0 +1,439 @@
+// +build windows
+
+package backuptar
+
+import (
+	"encoding/base64"
+	"errors"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"path/filepath"
+	"strconv"
+	"strings"
+	"syscall"
+	"time"
+
+	"github.com/Microsoft/go-winio"
+	"github.com/Microsoft/go-winio/archive/tar" // until archive/tar supports pax extensions in its interface
+)
+
+const (
+	c_ISUID  = 04000   // Set uid
+	c_ISGID  = 02000   // Set gid
+	c_ISVTX  = 01000   // Save text (sticky bit)
+	c_ISDIR  = 040000  // Directory
+	c_ISFIFO = 010000  // FIFO
+	c_ISREG  = 0100000 // Regular file
+	c_ISLNK  = 0120000 // Symbolic link
+	c_ISBLK  = 060000  // Block special file
+	c_ISCHR  = 020000  // Character special file
+	c_ISSOCK = 0140000 // Socket
+)
+
+const (
+	hdrFileAttributes        = "fileattr"
+	hdrSecurityDescriptor    = "sd"
+	hdrRawSecurityDescriptor = "rawsd"
+	hdrMountPoint            = "mountpoint"
+	hdrEaPrefix              = "xattr."
+)
+
+func writeZeroes(w io.Writer, count int64) error {
+	buf := make([]byte, 8192)
+	c := len(buf)
+	for i := int64(0); i < count; i += int64(c) {
+		if int64(c) > count-i {
+			c = int(count - i)
+		}
+		_, err := w.Write(buf[:c])
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func copySparse(t *tar.Writer, br *winio.BackupStreamReader) error {
+	curOffset := int64(0)
+	for {
+		bhdr, err := br.Next()
+		if err == io.EOF {
+			err = io.ErrUnexpectedEOF
+		}
+		if err != nil {
+			return err
+		}
+		if bhdr.Id != winio.BackupSparseBlock {
+			return fmt.Errorf("unexpected stream %d", bhdr.Id)
+		}
+
+		// archive/tar does not support writing sparse files
+		// so just write zeroes to catch up to the current offset.
+		err = writeZeroes(t, bhdr.Offset-curOffset)
+		if bhdr.Size == 0 {
+			break
+		}
+		n, err := io.Copy(t, br)
+		if err != nil {
+			return err
+		}
+		curOffset = bhdr.Offset + n
+	}
+	return nil
+}
+
+// BasicInfoHeader creates a tar header from basic file information.
+func BasicInfoHeader(name string, size int64, fileInfo *winio.FileBasicInfo) *tar.Header {
+	hdr := &tar.Header{
+		Name:         filepath.ToSlash(name),
+		Size:         size,
+		Typeflag:     tar.TypeReg,
+		ModTime:      time.Unix(0, fileInfo.LastWriteTime.Nanoseconds()),
+		ChangeTime:   time.Unix(0, fileInfo.ChangeTime.Nanoseconds()),
+		AccessTime:   time.Unix(0, fileInfo.LastAccessTime.Nanoseconds()),
+		CreationTime: time.Unix(0, fileInfo.CreationTime.Nanoseconds()),
+		Winheaders:   make(map[string]string),
+	}
+	hdr.Winheaders[hdrFileAttributes] = fmt.Sprintf("%d", fileInfo.FileAttributes)
+
+	if (fileInfo.FileAttributes & syscall.FILE_ATTRIBUTE_DIRECTORY) != 0 {
+		hdr.Mode |= c_ISDIR
+		hdr.Size = 0
+		hdr.Typeflag = tar.TypeDir
+	}
+	return hdr
+}
+
+// WriteTarFileFromBackupStream writes a file to a tar writer using data from a Win32 backup stream.
+//
+// This encodes Win32 metadata as tar pax vendor extensions starting with MSWINDOWS.
+//
+// The additional Win32 metadata is:
+//
+// MSWINDOWS.fileattr: The Win32 file attributes, as a decimal value
+//
+// MSWINDOWS.rawsd: The Win32 security descriptor, in raw binary format
+//
+// MSWINDOWS.mountpoint: If present, this is a mount point and not a symlink, even though the type is '2' (symlink)
+func WriteTarFileFromBackupStream(t *tar.Writer, r io.Reader, name string, size int64, fileInfo *winio.FileBasicInfo) error {
+	name = filepath.ToSlash(name)
+	hdr := BasicInfoHeader(name, size, fileInfo)
+
+	// If r can be seeked, then this function is two-pass: pass 1 collects the
+	// tar header data, and pass 2 copies the data stream. If r cannot be
+	// seeked, then some header data (in particular EAs) will be silently lost.
+	var (
+		restartPos int64
+		err        error
+	)
+	sr, readTwice := r.(io.Seeker)
+	if readTwice {
+		if restartPos, err = sr.Seek(0, io.SeekCurrent); err != nil {
+			readTwice = false
+		}
+	}
+
+	br := winio.NewBackupStreamReader(r)
+	var dataHdr *winio.BackupHeader
+	for dataHdr == nil {
+		bhdr, err := br.Next()
+		if err == io.EOF {
+			break
+		}
+		if err != nil {
+			return err
+		}
+		switch bhdr.Id {
+		case winio.BackupData:
+			hdr.Mode |= c_ISREG
+			if !readTwice {
+				dataHdr = bhdr
+			}
+		case winio.BackupSecurity:
+			sd, err := ioutil.ReadAll(br)
+			if err != nil {
+				return err
+			}
+			hdr.Winheaders[hdrRawSecurityDescriptor] = base64.StdEncoding.EncodeToString(sd)
+
+		case winio.BackupReparseData:
+			hdr.Mode |= c_ISLNK
+			hdr.Typeflag = tar.TypeSymlink
+			reparseBuffer, err := ioutil.ReadAll(br)
+			rp, err := winio.DecodeReparsePoint(reparseBuffer)
+			if err != nil {
+				return err
+			}
+			if rp.IsMountPoint {
+				hdr.Winheaders[hdrMountPoint] = "1"
+			}
+			hdr.Linkname = rp.Target
+
+		case winio.BackupEaData:
+			eab, err := ioutil.ReadAll(br)
+			if err != nil {
+				return err
+			}
+			eas, err := winio.DecodeExtendedAttributes(eab)
+			if err != nil {
+				return err
+			}
+			for _, ea := range eas {
+				// Use base64 encoding for the binary value. Note that there
+				// is no way to encode the EA's flags, since their use doesn't
+				// make any sense for persisted EAs.
+				hdr.Winheaders[hdrEaPrefix+ea.Name] = base64.StdEncoding.EncodeToString(ea.Value)
+			}
+
+		case winio.BackupAlternateData, winio.BackupLink, winio.BackupPropertyData, winio.BackupObjectId, winio.BackupTxfsData:
+			// ignore these streams
+		default:
+			return fmt.Errorf("%s: unknown stream ID %d", name, bhdr.Id)
+		}
+	}
+
+	err = t.WriteHeader(hdr)
+	if err != nil {
+		return err
+	}
+
+	if readTwice {
+		// Get back to the data stream.
+		if _, err = sr.Seek(restartPos, io.SeekStart); err != nil {
+			return err
+		}
+		for dataHdr == nil {
+			bhdr, err := br.Next()
+			if err == io.EOF {
+				break
+			}
+			if err != nil {
+				return err
+			}
+			if bhdr.Id == winio.BackupData {
+				dataHdr = bhdr
+			}
+		}
+	}
+
+	if dataHdr != nil {
+		// A data stream was found. Copy the data.
+		if (dataHdr.Attributes & winio.StreamSparseAttributes) == 0 {
+			if size != dataHdr.Size {
+				return fmt.Errorf("%s: mismatch between file size %d and header size %d", name, size, dataHdr.Size)
+			}
+			_, err = io.Copy(t, br)
+			if err != nil {
+				return err
+			}
+		} else {
+			err = copySparse(t, br)
+			if err != nil {
+				return err
+			}
+		}
+	}
+
+	// Look for streams after the data stream. The only ones we handle are alternate data streams.
+	// Other streams may have metadata that could be serialized, but the tar header has already
+	// been written. In practice, this means that we don't get EA or TXF metadata.
+	for {
+		bhdr, err := br.Next()
+		if err == io.EOF {
+			break
+		}
+		if err != nil {
+			return err
+		}
+		switch bhdr.Id {
+		case winio.BackupAlternateData:
+			altName := bhdr.Name
+			if strings.HasSuffix(altName, ":$DATA") {
+				altName = altName[:len(altName)-len(":$DATA")]
+			}
+			if (bhdr.Attributes & winio.StreamSparseAttributes) == 0 {
+				hdr = &tar.Header{
+					Name:       name + altName,
+					Mode:       hdr.Mode,
+					Typeflag:   tar.TypeReg,
+					Size:       bhdr.Size,
+					ModTime:    hdr.ModTime,
+					AccessTime: hdr.AccessTime,
+					ChangeTime: hdr.ChangeTime,
+				}
+				err = t.WriteHeader(hdr)
+				if err != nil {
+					return err
+				}
+				_, err = io.Copy(t, br)
+				if err != nil {
+					return err
+				}
+
+			} else {
+				// Unsupported for now, since the size of the alternate stream is not present
+				// in the backup stream until after the data has been read.
+				return errors.New("tar of sparse alternate data streams is unsupported")
+			}
+		case winio.BackupEaData, winio.BackupLink, winio.BackupPropertyData, winio.BackupObjectId, winio.BackupTxfsData:
+			// ignore these streams
+		default:
+			return fmt.Errorf("%s: unknown stream ID %d after data", name, bhdr.Id)
+		}
+	}
+	return nil
+}
+
+// FileInfoFromHeader retrieves basic Win32 file information from a tar header, using the additional metadata written by
+// WriteTarFileFromBackupStream.
+func FileInfoFromHeader(hdr *tar.Header) (name string, size int64, fileInfo *winio.FileBasicInfo, err error) {
+	name = hdr.Name
+	if hdr.Typeflag == tar.TypeReg || hdr.Typeflag == tar.TypeRegA {
+		size = hdr.Size
+	}
+	fileInfo = &winio.FileBasicInfo{
+		LastAccessTime: syscall.NsecToFiletime(hdr.AccessTime.UnixNano()),
+		LastWriteTime:  syscall.NsecToFiletime(hdr.ModTime.UnixNano()),
+		ChangeTime:     syscall.NsecToFiletime(hdr.ChangeTime.UnixNano()),
+		CreationTime:   syscall.NsecToFiletime(hdr.CreationTime.UnixNano()),
+	}
+	if attrStr, ok := hdr.Winheaders[hdrFileAttributes]; ok {
+		attr, err := strconv.ParseUint(attrStr, 10, 32)
+		if err != nil {
+			return "", 0, nil, err
+		}
+		fileInfo.FileAttributes = uint32(attr)
+	} else {
+		if hdr.Typeflag == tar.TypeDir {
+			fileInfo.FileAttributes |= syscall.FILE_ATTRIBUTE_DIRECTORY
+		}
+	}
+	return
+}
+
+// WriteBackupStreamFromTarFile writes a Win32 backup stream from the current tar file. Since this function may process multiple
+// tar file entries in order to collect all the alternate data streams for the file, it returns the next
+// tar file that was not processed, or io.EOF is there are no more.
+func WriteBackupStreamFromTarFile(w io.Writer, t *tar.Reader, hdr *tar.Header) (*tar.Header, error) {
+	bw := winio.NewBackupStreamWriter(w)
+	var sd []byte
+	var err error
+	// Maintaining old SDDL-based behavior for backward compatibility.  All new tar headers written
+	// by this library will have raw binary for the security descriptor.
+	if sddl, ok := hdr.Winheaders[hdrSecurityDescriptor]; ok {
+		sd, err = winio.SddlToSecurityDescriptor(sddl)
+		if err != nil {
+			return nil, err
+		}
+	}
+	if sdraw, ok := hdr.Winheaders[hdrRawSecurityDescriptor]; ok {
+		sd, err = base64.StdEncoding.DecodeString(sdraw)
+		if err != nil {
+			return nil, err
+		}
+	}
+	if len(sd) != 0 {
+		bhdr := winio.BackupHeader{
+			Id:   winio.BackupSecurity,
+			Size: int64(len(sd)),
+		}
+		err := bw.WriteHeader(&bhdr)
+		if err != nil {
+			return nil, err
+		}
+		_, err = bw.Write(sd)
+		if err != nil {
+			return nil, err
+		}
+	}
+	var eas []winio.ExtendedAttribute
+	for k, v := range hdr.Winheaders {
+		if !strings.HasPrefix(k, hdrEaPrefix) {
+			continue
+		}
+		data, err := base64.StdEncoding.DecodeString(v)
+		if err != nil {
+			return nil, err
+		}
+		eas = append(eas, winio.ExtendedAttribute{
+			Name:  k[len(hdrEaPrefix):],
+			Value: data,
+		})
+	}
+	if len(eas) != 0 {
+		eadata, err := winio.EncodeExtendedAttributes(eas)
+		if err != nil {
+			return nil, err
+		}
+		bhdr := winio.BackupHeader{
+			Id:   winio.BackupEaData,
+			Size: int64(len(eadata)),
+		}
+		err = bw.WriteHeader(&bhdr)
+		if err != nil {
+			return nil, err
+		}
+		_, err = bw.Write(eadata)
+		if err != nil {
+			return nil, err
+		}
+	}
+	if hdr.Typeflag == tar.TypeSymlink {
+		_, isMountPoint := hdr.Winheaders[hdrMountPoint]
+		rp := winio.ReparsePoint{
+			Target:       filepath.FromSlash(hdr.Linkname),
+			IsMountPoint: isMountPoint,
+		}
+		reparse := winio.EncodeReparsePoint(&rp)
+		bhdr := winio.BackupHeader{
+			Id:   winio.BackupReparseData,
+			Size: int64(len(reparse)),
+		}
+		err := bw.WriteHeader(&bhdr)
+		if err != nil {
+			return nil, err
+		}
+		_, err = bw.Write(reparse)
+		if err != nil {
+			return nil, err
+		}
+	}
+	if hdr.Typeflag == tar.TypeReg || hdr.Typeflag == tar.TypeRegA {
+		bhdr := winio.BackupHeader{
+			Id:   winio.BackupData,
+			Size: hdr.Size,
+		}
+		err := bw.WriteHeader(&bhdr)
+		if err != nil {
+			return nil, err
+		}
+		_, err = io.Copy(bw, t)
+		if err != nil {
+			return nil, err
+		}
+	}
+	// Copy all the alternate data streams and return the next non-ADS header.
+	for {
+		ahdr, err := t.Next()
+		if err != nil {
+			return nil, err
+		}
+		if ahdr.Typeflag != tar.TypeReg || !strings.HasPrefix(ahdr.Name, hdr.Name+":") {
+			return ahdr, nil
+		}
+		bhdr := winio.BackupHeader{
+			Id:   winio.BackupAlternateData,
+			Size: ahdr.Size,
+			Name: ahdr.Name[len(hdr.Name):] + ":$DATA",
+		}
+		err = bw.WriteHeader(&bhdr)
+		if err != nil {
+			return nil, err
+		}
+		_, err = io.Copy(bw, t)
+		if err != nil {
+			return nil, err
+		}
+	}
+}

vendor/github.com/Microsoft/go-winio/ea.go

@@ -0,0 +1,137 @@
+package winio
+
+import (
+	"bytes"
+	"encoding/binary"
+	"errors"
+)
+
+type fileFullEaInformation struct {
+	NextEntryOffset uint32
+	Flags           uint8
+	NameLength      uint8
+	ValueLength     uint16
+}
+
+var (
+	fileFullEaInformationSize = binary.Size(&fileFullEaInformation{})
+
+	errInvalidEaBuffer = errors.New("invalid extended attribute buffer")
+	errEaNameTooLarge  = errors.New("extended attribute name too large")
+	errEaValueTooLarge = errors.New("extended attribute value too large")
+)
+
+// ExtendedAttribute represents a single Windows EA.
+type ExtendedAttribute struct {
+	Name  string
+	Value []byte
+	Flags uint8
+}
+
+func parseEa(b []byte) (ea ExtendedAttribute, nb []byte, err error) {
+	var info fileFullEaInformation
+	err = binary.Read(bytes.NewReader(b), binary.LittleEndian, &info)
+	if err != nil {
+		err = errInvalidEaBuffer
+		return
+	}
+
+	nameOffset := fileFullEaInformationSize
+	nameLen := int(info.NameLength)
+	valueOffset := nameOffset + int(info.NameLength) + 1
+	valueLen := int(info.ValueLength)
+	nextOffset := int(info.NextEntryOffset)
+	if valueLen+valueOffset > len(b) || nextOffset < 0 || nextOffset > len(b) {
+		err = errInvalidEaBuffer
+		return
+	}
+
+	ea.Name = string(b[nameOffset : nameOffset+nameLen])
+	ea.Value = b[valueOffset : valueOffset+valueLen]
+	ea.Flags = info.Flags
+	if info.NextEntryOffset != 0 {
+		nb = b[info.NextEntryOffset:]
+	}
+	return
+}
+
+// DecodeExtendedAttributes decodes a list of EAs from a FILE_FULL_EA_INFORMATION
+// buffer retrieved from BackupRead, ZwQueryEaFile, etc.
+func DecodeExtendedAttributes(b []byte) (eas []ExtendedAttribute, err error) {
+	for len(b) != 0 {
+		ea, nb, err := parseEa(b)
+		if err != nil {
+			return nil, err
+		}
+
+		eas = append(eas, ea)
+		b = nb
+	}
+	return
+}
+
+func writeEa(buf *bytes.Buffer, ea *ExtendedAttribute, last bool) error {
+	if int(uint8(len(ea.Name))) != len(ea.Name) {
+		return errEaNameTooLarge
+	}
+	if int(uint16(len(ea.Value))) != len(ea.Value) {
+		return errEaValueTooLarge
+	}
+	entrySize := uint32(fileFullEaInformationSize + len(ea.Name) + 1 + len(ea.Value))
+	withPadding := (entrySize + 3) &^ 3
+	nextOffset := uint32(0)
+	if !last {
+		nextOffset = withPadding
+	}
+	info := fileFullEaInformation{
+		NextEntryOffset: nextOffset,
+		Flags:           ea.Flags,
+		NameLength:      uint8(len(ea.Name)),
+		ValueLength:     uint16(len(ea.Value)),
+	}
+
+	err := binary.Write(buf, binary.LittleEndian, &info)
+	if err != nil {
+		return err
+	}
+
+	_, err = buf.Write([]byte(ea.Name))
+	if err != nil {
+		return err
+	}
+
+	err = buf.WriteByte(0)
+	if err != nil {
+		return err
+	}
+
+	_, err = buf.Write(ea.Value)
+	if err != nil {
+		return err
+	}
+
+	_, err = buf.Write([]byte{0, 0, 0}[0 : withPadding-entrySize])
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// EncodeExtendedAttributes encodes a list of EAs into a FILE_FULL_EA_INFORMATION
+// buffer for use with BackupWrite, ZwSetEaFile, etc.
+func EncodeExtendedAttributes(eas []ExtendedAttribute) ([]byte, error) {
+	var buf bytes.Buffer
+	for i := range eas {
+		last := false
+		if i == len(eas)-1 {
+			last = true
+		}
+
+		err := writeEa(&buf, &eas[i], last)
+		if err != nil {
+			return nil, err
+		}
+	}
+	return buf.Bytes(), nil
+}

vendor/github.com/Microsoft/go-winio/file.go

@@ -0,0 +1,323 @@
+// +build windows
+
+package winio
+
+import (
+	"errors"
+	"io"
+	"runtime"
+	"sync"
+	"sync/atomic"
+	"syscall"
+	"time"
+)
+
+//sys cancelIoEx(file syscall.Handle, o *syscall.Overlapped) (err error) = CancelIoEx
+//sys createIoCompletionPort(file syscall.Handle, port syscall.Handle, key uintptr, threadCount uint32) (newport syscall.Handle, err error) = CreateIoCompletionPort
+//sys getQueuedCompletionStatus(port syscall.Handle, bytes *uint32, key *uintptr, o **ioOperation, timeout uint32) (err error) = GetQueuedCompletionStatus
+//sys setFileCompletionNotificationModes(h syscall.Handle, flags uint8) (err error) = SetFileCompletionNotificationModes
+//sys wsaGetOverlappedResult(h syscall.Handle, o *syscall.Overlapped, bytes *uint32, wait bool, flags *uint32) (err error) = ws2_32.WSAGetOverlappedResult
+
+type atomicBool int32
+
+func (b *atomicBool) isSet() bool { return atomic.LoadInt32((*int32)(b)) != 0 }
+func (b *atomicBool) setFalse()   { atomic.StoreInt32((*int32)(b), 0) }
+func (b *atomicBool) setTrue()    { atomic.StoreInt32((*int32)(b), 1) }
+func (b *atomicBool) swap(new bool) bool {
+	var newInt int32
+	if new {
+		newInt = 1
+	}
+	return atomic.SwapInt32((*int32)(b), newInt) == 1
+}
+
+const (
+	cFILE_SKIP_COMPLETION_PORT_ON_SUCCESS = 1
+	cFILE_SKIP_SET_EVENT_ON_HANDLE        = 2
+)
+
+var (
+	ErrFileClosed = errors.New("file has already been closed")
+	ErrTimeout    = &timeoutError{}
+)
+
+type timeoutError struct{}
+
+func (e *timeoutError) Error() string   { return "i/o timeout" }
+func (e *timeoutError) Timeout() bool   { return true }
+func (e *timeoutError) Temporary() bool { return true }
+
+type timeoutChan chan struct{}
+
+var ioInitOnce sync.Once
+var ioCompletionPort syscall.Handle
+
+// ioResult contains the result of an asynchronous IO operation
+type ioResult struct {
+	bytes uint32
+	err   error
+}
+
+// ioOperation represents an outstanding asynchronous Win32 IO
+type ioOperation struct {
+	o  syscall.Overlapped
+	ch chan ioResult
+}
+
+func initIo() {
+	h, err := createIoCompletionPort(syscall.InvalidHandle, 0, 0, 0xffffffff)
+	if err != nil {
+		panic(err)
+	}
+	ioCompletionPort = h
+	go ioCompletionProcessor(h)
+}
+
+// win32File implements Reader, Writer, and Closer on a Win32 handle without blocking in a syscall.
+// It takes ownership of this handle and will close it if it is garbage collected.
+type win32File struct {
+	handle        syscall.Handle
+	wg            sync.WaitGroup
+	wgLock        sync.RWMutex
+	closing       atomicBool
+	socket        bool
+	readDeadline  deadlineHandler
+	writeDeadline deadlineHandler
+}
+
+type deadlineHandler struct {
+	setLock     sync.Mutex
+	channel     timeoutChan
+	channelLock sync.RWMutex
+	timer       *time.Timer
+	timedout    atomicBool
+}
+
+// makeWin32File makes a new win32File from an existing file handle
+func makeWin32File(h syscall.Handle) (*win32File, error) {
+	f := &win32File{handle: h}
+	ioInitOnce.Do(initIo)
+	_, err := createIoCompletionPort(h, ioCompletionPort, 0, 0xffffffff)
+	if err != nil {
+		return nil, err
+	}
+	err = setFileCompletionNotificationModes(h, cFILE_SKIP_COMPLETION_PORT_ON_SUCCESS|cFILE_SKIP_SET_EVENT_ON_HANDLE)
+	if err != nil {
+		return nil, err
+	}
+	f.readDeadline.channel = make(timeoutChan)
+	f.writeDeadline.channel = make(timeoutChan)
+	return f, nil
+}
+
+func MakeOpenFile(h syscall.Handle) (io.ReadWriteCloser, error) {
+	// If we return the result of makeWin32File directly, it can result in an
+	// interface-wrapped nil, rather than a nil interface value.
+	f, err := makeWin32File(h)
+	if err != nil {
+		return nil, err
+	}
+	return f, nil
+}
+
+// closeHandle closes the resources associated with a Win32 handle
+func (f *win32File) closeHandle() {
+	f.wgLock.Lock()
+	// Atomically set that we are closing, releasing the resources only once.
+	if !f.closing.swap(true) {
+		f.wgLock.Unlock()
+		// cancel all IO and wait for it to complete
+		cancelIoEx(f.handle, nil)
+		f.wg.Wait()
+		// at this point, no new IO can start
+		syscall.Close(f.handle)
+		f.handle = 0
+	} else {
+		f.wgLock.Unlock()
+	}
+}
+
+// Close closes a win32File.
+func (f *win32File) Close() error {
+	f.closeHandle()
+	return nil
+}
+
+// prepareIo prepares for a new IO operation.
+// The caller must call f.wg.Done() when the IO is finished, prior to Close() returning.
+func (f *win32File) prepareIo() (*ioOperation, error) {
+	f.wgLock.RLock()
+	if f.closing.isSet() {
+		f.wgLock.RUnlock()
+		return nil, ErrFileClosed
+	}
+	f.wg.Add(1)
+	f.wgLock.RUnlock()
+	c := &ioOperation{}
+	c.ch = make(chan ioResult)
+	return c, nil
+}
+
+// ioCompletionProcessor processes completed async IOs forever
+func ioCompletionProcessor(h syscall.Handle) {
+	for {
+		var bytes uint32
+		var key uintptr
+		var op *ioOperation
+		err := getQueuedCompletionStatus(h, &bytes, &key, &op, syscall.INFINITE)
+		if op == nil {
+			panic(err)
+		}
+		op.ch <- ioResult{bytes, err}
+	}
+}
+
+// asyncIo processes the return value from ReadFile or WriteFile, blocking until
+// the operation has actually completed.
+func (f *win32File) asyncIo(c *ioOperation, d *deadlineHandler, bytes uint32, err error) (int, error) {
+	if err != syscall.ERROR_IO_PENDING {
+		return int(bytes), err
+	}
+
+	if f.closing.isSet() {
+		cancelIoEx(f.handle, &c.o)
+	}
+
+	var timeout timeoutChan
+	if d != nil {
+		d.channelLock.Lock()
+		timeout = d.channel
+		d.channelLock.Unlock()
+	}
+
+	var r ioResult
+	select {
+	case r = <-c.ch:
+		err = r.err
+		if err == syscall.ERROR_OPERATION_ABORTED {
+			if f.closing.isSet() {
+				err = ErrFileClosed
+			}
+		} else if err != nil && f.socket {
+			// err is from Win32. Query the overlapped structure to get the winsock error.
+			var bytes, flags uint32
+			err = wsaGetOverlappedResult(f.handle, &c.o, &bytes, false, &flags)
+		}
+	case <-timeout:
+		cancelIoEx(f.handle, &c.o)
+		r = <-c.ch
+		err = r.err
+		if err == syscall.ERROR_OPERATION_ABORTED {
+			err = ErrTimeout
+		}
+	}
+
+	// runtime.KeepAlive is needed, as c is passed via native
+	// code to ioCompletionProcessor, c must remain alive
+	// until the channel read is complete.
+	runtime.KeepAlive(c)
+	return int(r.bytes), err
+}
+
+// Read reads from a file handle.
+func (f *win32File) Read(b []byte) (int, error) {
+	c, err := f.prepareIo()
+	if err != nil {
+		return 0, err
+	}
+	defer f.wg.Done()
+
+	if f.readDeadline.timedout.isSet() {
+		return 0, ErrTimeout
+	}
+
+	var bytes uint32
+	err = syscall.ReadFile(f.handle, b, &bytes, &c.o)
+	n, err := f.asyncIo(c, &f.readDeadline, bytes, err)
+	runtime.KeepAlive(b)
+
+	// Handle EOF conditions.
+	if err == nil && n == 0 && len(b) != 0 {
+		return 0, io.EOF
+	} else if err == syscall.ERROR_BROKEN_PIPE {
+		return 0, io.EOF
+	} else {
+		return n, err
+	}
+}
+
+// Write writes to a file handle.
+func (f *win32File) Write(b []byte) (int, error) {
+	c, err := f.prepareIo()
+	if err != nil {
+		return 0, err
+	}
+	defer f.wg.Done()
+
+	if f.writeDeadline.timedout.isSet() {
+		return 0, ErrTimeout
+	}
+
+	var bytes uint32
+	err = syscall.WriteFile(f.handle, b, &bytes, &c.o)
+	n, err := f.asyncIo(c, &f.writeDeadline, bytes, err)
+	runtime.KeepAlive(b)
+	return n, err
+}
+
+func (f *win32File) SetReadDeadline(deadline time.Time) error {
+	return f.readDeadline.set(deadline)
+}
+
+func (f *win32File) SetWriteDeadline(deadline time.Time) error {
+	return f.writeDeadline.set(deadline)
+}
+
+func (f *win32File) Flush() error {
+	return syscall.FlushFileBuffers(f.handle)
+}
+
+func (f *win32File) Fd() uintptr {
+	return uintptr(f.handle)
+}
+
+func (d *deadlineHandler) set(deadline time.Time) error {
+	d.setLock.Lock()
+	defer d.setLock.Unlock()
+
+	if d.timer != nil {
+		if !d.timer.Stop() {
+			<-d.channel
+		}
+		d.timer = nil
+	}
+	d.timedout.setFalse()
+
+	select {
+	case <-d.channel:
+		d.channelLock.Lock()
+		d.channel = make(chan struct{})
+		d.channelLock.Unlock()
+	default:
+	}
+
+	if deadline.IsZero() {
+		return nil
+	}
+
+	timeoutIO := func() {
+		d.timedout.setTrue()
+		close(d.channel)
+	}
+
+	now := time.Now()
+	duration := deadline.Sub(now)
+	if deadline.After(now) {
+		// Deadline is in the future, set a timer to wait
+		d.timer = time.AfterFunc(duration, timeoutIO)
+	} else {
+		// Deadline is in the past. Cancel all pending IO now.
+		timeoutIO()
+	}
+	return nil
+}

vendor/github.com/Microsoft/go-winio/fileinfo.go

@@ -0,0 +1,61 @@
+// +build windows
+
+package winio
+
+import (
+	"os"
+	"runtime"
+	"syscall"
+	"unsafe"
+)
+
+//sys getFileInformationByHandleEx(h syscall.Handle, class uint32, buffer *byte, size uint32) (err error) = GetFileInformationByHandleEx
+//sys setFileInformationByHandle(h syscall.Handle, class uint32, buffer *byte, size uint32) (err error) = SetFileInformationByHandle
+
+const (
+	fileBasicInfo = 0
+	fileIDInfo    = 0x12
+)
+
+// FileBasicInfo contains file access time and file attributes information.
+type FileBasicInfo struct {
+	CreationTime, LastAccessTime, LastWriteTime, ChangeTime syscall.Filetime
+	FileAttributes                                          uint32
+	pad                                                     uint32 // padding
+}
+
+// GetFileBasicInfo retrieves times and attributes for a file.
+func GetFileBasicInfo(f *os.File) (*FileBasicInfo, error) {
+	bi := &FileBasicInfo{}
+	if err := getFileInformationByHandleEx(syscall.Handle(f.Fd()), fileBasicInfo, (*byte)(unsafe.Pointer(bi)), uint32(unsafe.Sizeof(*bi))); err != nil {
+		return nil, &os.PathError{Op: "GetFileInformationByHandleEx", Path: f.Name(), Err: err}
+	}
+	runtime.KeepAlive(f)
+	return bi, nil
+}
+
+// SetFileBasicInfo sets times and attributes for a file.
+func SetFileBasicInfo(f *os.File, bi *FileBasicInfo) error {
+	if err := setFileInformationByHandle(syscall.Handle(f.Fd()), fileBasicInfo, (*byte)(unsafe.Pointer(bi)), uint32(unsafe.Sizeof(*bi))); err != nil {
+		return &os.PathError{Op: "SetFileInformationByHandle", Path: f.Name(), Err: err}
+	}
+	runtime.KeepAlive(f)
+	return nil
+}
+
+// FileIDInfo contains the volume serial number and file ID for a file. This pair should be
+// unique on a system.
+type FileIDInfo struct {
+	VolumeSerialNumber uint64
+	FileID             [16]byte
+}
+
+// GetFileID retrieves the unique (volume, file ID) pair for a file.
+func GetFileID(f *os.File) (*FileIDInfo, error) {
+	fileID := &FileIDInfo{}
+	if err := getFileInformationByHandleEx(syscall.Handle(f.Fd()), fileIDInfo, (*byte)(unsafe.Pointer(fileID)), uint32(unsafe.Sizeof(*fileID))); err != nil {
+		return nil, &os.PathError{Op: "GetFileInformationByHandleEx", Path: f.Name(), Err: err}
+	}
+	runtime.KeepAlive(f)
+	return fileID, nil
+}

vendor/github.com/Microsoft/go-winio/go.mod

@@ -0,0 +1,9 @@
+module github.com/Microsoft/go-winio
+
+go 1.12
+
+require (
+	github.com/pkg/errors v0.8.1
+	github.com/sirupsen/logrus v1.4.1
+	golang.org/x/sys v0.0.0-20190916202348-b4ddaad3f8a3
+)

vendor/github.com/Microsoft/go-winio/go.sum

@@ -0,0 +1,18 @@
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/konsorten/go-windows-terminal-sequences v1.0.1 h1:mweAR1A6xJ3oS2pRaGiHgQ4OO8tzTaLawm8vnODuwDk=
+github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
+github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
+github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/sirupsen/logrus v1.4.1 h1:GL2rEmy6nsikmW0r8opw9JIRScdMF5hA8cOYLH7In1k=
+github.com/sirupsen/logrus v1.4.1/go.mod h1:ni0Sbl8bgC9z8RoU9G6nDWqqs/fq4eDPysMBDgk/93Q=
+github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w=
+github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
+golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190507160741-ecd444e8653b h1:ag/x1USPSsqHud38I9BAC88qdNLDHHtQ4mlgQIZPPNA=
+golang.org/x/sys v0.0.0-20190507160741-ecd444e8653b/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190916202348-b4ddaad3f8a3 h1:7TYNF4UdlohbFwpNH04CoPMp1cHUZgO1Ebq5r2hIjfo=
+golang.org/x/sys v0.0.0-20190916202348-b4ddaad3f8a3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=

vendor/github.com/Microsoft/go-winio/hvsock.go

@@ -0,0 +1,305 @@
+package winio
+
+import (
+	"fmt"
+	"io"
+	"net"
+	"os"
+	"syscall"
+	"time"
+	"unsafe"
+
+	"github.com/Microsoft/go-winio/pkg/guid"
+)
+
+//sys bind(s syscall.Handle, name unsafe.Pointer, namelen int32) (err error) [failretval==socketError] = ws2_32.bind
+
+const (
+	afHvSock = 34 // AF_HYPERV
+
+	socketError = ^uintptr(0)
+)
+
+// An HvsockAddr is an address for a AF_HYPERV socket.
+type HvsockAddr struct {
+	VMID      guid.GUID
+	ServiceID guid.GUID
+}
+
+type rawHvsockAddr struct {
+	Family    uint16
+	_         uint16
+	VMID      guid.GUID
+	ServiceID guid.GUID
+}
+
+// Network returns the address's network name, "hvsock".
+func (addr *HvsockAddr) Network() string {
+	return "hvsock"
+}
+
+func (addr *HvsockAddr) String() string {
+	return fmt.Sprintf("%s:%s", &addr.VMID, &addr.ServiceID)
+}
+
+// VsockServiceID returns an hvsock service ID corresponding to the specified AF_VSOCK port.
+func VsockServiceID(port uint32) guid.GUID {
+	g, _ := guid.FromString("00000000-facb-11e6-bd58-64006a7986d3")
+	g.Data1 = port
+	return g
+}
+
+func (addr *HvsockAddr) raw() rawHvsockAddr {
+	return rawHvsockAddr{
+		Family:    afHvSock,
+		VMID:      addr.VMID,
+		ServiceID: addr.ServiceID,
+	}
+}
+
+func (addr *HvsockAddr) fromRaw(raw *rawHvsockAddr) {
+	addr.VMID = raw.VMID
+	addr.ServiceID = raw.ServiceID
+}
+
+// HvsockListener is a socket listener for the AF_HYPERV address family.
+type HvsockListener struct {
+	sock *win32File
+	addr HvsockAddr
+}
+
+// HvsockConn is a connected socket of the AF_HYPERV address family.
+type HvsockConn struct {
+	sock          *win32File
+	local, remote HvsockAddr
+}
+
+func newHvSocket() (*win32File, error) {
+	fd, err := syscall.Socket(afHvSock, syscall.SOCK_STREAM, 1)
+	if err != nil {
+		return nil, os.NewSyscallError("socket", err)
+	}
+	f, err := makeWin32File(fd)
+	if err != nil {
+		syscall.Close(fd)
+		return nil, err
+	}
+	f.socket = true
+	return f, nil
+}
+
+// ListenHvsock listens for connections on the specified hvsock address.
+func ListenHvsock(addr *HvsockAddr) (_ *HvsockListener, err error) {
+	l := &HvsockListener{addr: *addr}
+	sock, err := newHvSocket()
+	if err != nil {
+		return nil, l.opErr("listen", err)
+	}
+	sa := addr.raw()
+	err = bind(sock.handle, unsafe.Pointer(&sa), int32(unsafe.Sizeof(sa)))
+	if err != nil {
+		return nil, l.opErr("listen", os.NewSyscallError("socket", err))
+	}
+	err = syscall.Listen(sock.handle, 16)
+	if err != nil {
+		return nil, l.opErr("listen", os.NewSyscallError("listen", err))
+	}
+	return &HvsockListener{sock: sock, addr: *addr}, nil
+}
+
+func (l *HvsockListener) opErr(op string, err error) error {
+	return &net.OpError{Op: op, Net: "hvsock", Addr: &l.addr, Err: err}
+}
+
+// Addr returns the listener's network address.
+func (l *HvsockListener) Addr() net.Addr {
+	return &l.addr
+}
+
+// Accept waits for the next connection and returns it.
+func (l *HvsockListener) Accept() (_ net.Conn, err error) {
+	sock, err := newHvSocket()
+	if err != nil {
+		return nil, l.opErr("accept", err)
+	}
+	defer func() {
+		if sock != nil {
+			sock.Close()
+		}
+	}()
+	c, err := l.sock.prepareIo()
+	if err != nil {
+		return nil, l.opErr("accept", err)
+	}
+	defer l.sock.wg.Done()
+
+	// AcceptEx, per documentation, requires an extra 16 bytes per address.
+	const addrlen = uint32(16 + unsafe.Sizeof(rawHvsockAddr{}))
+	var addrbuf [addrlen * 2]byte
+
+	var bytes uint32
+	err = syscall.AcceptEx(l.sock.handle, sock.handle, &addrbuf[0], 0, addrlen, addrlen, &bytes, &c.o)
+	_, err = l.sock.asyncIo(c, nil, bytes, err)
+	if err != nil {
+		return nil, l.opErr("accept", os.NewSyscallError("acceptex", err))
+	}
+	conn := &HvsockConn{
+		sock: sock,
+	}
+	conn.local.fromRaw((*rawHvsockAddr)(unsafe.Pointer(&addrbuf[0])))
+	conn.remote.fromRaw((*rawHvsockAddr)(unsafe.Pointer(&addrbuf[addrlen])))
+	sock = nil
+	return conn, nil
+}
+
+// Close closes the listener, causing any pending Accept calls to fail.
+func (l *HvsockListener) Close() error {
+	return l.sock.Close()
+}
+
+/* Need to finish ConnectEx handling
+func DialHvsock(ctx context.Context, addr *HvsockAddr) (*HvsockConn, error) {
+	sock, err := newHvSocket()
+	if err != nil {
+		return nil, err
+	}
+	defer func() {
+		if sock != nil {
+			sock.Close()
+		}
+	}()
+	c, err := sock.prepareIo()
+	if err != nil {
+		return nil, err
+	}
+	defer sock.wg.Done()
+	var bytes uint32
+	err = windows.ConnectEx(windows.Handle(sock.handle), sa, nil, 0, &bytes, &c.o)
+	_, err = sock.asyncIo(ctx, c, nil, bytes, err)
+	if err != nil {
+		return nil, err
+	}
+	conn := &HvsockConn{
+		sock:   sock,
+		remote: *addr,
+	}
+	sock = nil
+	return conn, nil
+}
+*/
+
+func (conn *HvsockConn) opErr(op string, err error) error {
+	return &net.OpError{Op: op, Net: "hvsock", Source: &conn.local, Addr: &conn.remote, Err: err}
+}
+
+func (conn *HvsockConn) Read(b []byte) (int, error) {
+	c, err := conn.sock.prepareIo()
+	if err != nil {
+		return 0, conn.opErr("read", err)
+	}
+	defer conn.sock.wg.Done()
+	buf := syscall.WSABuf{Buf: &b[0], Len: uint32(len(b))}
+	var flags, bytes uint32
+	err = syscall.WSARecv(conn.sock.handle, &buf, 1, &bytes, &flags, &c.o, nil)
+	n, err := conn.sock.asyncIo(c, &conn.sock.readDeadline, bytes, err)
+	if err != nil {
+		if _, ok := err.(syscall.Errno); ok {
+			err = os.NewSyscallError("wsarecv", err)
+		}
+		return 0, conn.opErr("read", err)
+	} else if n == 0 {
+		err = io.EOF
+	}
+	return n, err
+}
+
+func (conn *HvsockConn) Write(b []byte) (int, error) {
+	t := 0
+	for len(b) != 0 {
+		n, err := conn.write(b)
+		if err != nil {
+			return t + n, err
+		}
+		t += n
+		b = b[n:]
+	}
+	return t, nil
+}
+
+func (conn *HvsockConn) write(b []byte) (int, error) {
+	c, err := conn.sock.prepareIo()
+	if err != nil {
+		return 0, conn.opErr("write", err)
+	}
+	defer conn.sock.wg.Done()
+	buf := syscall.WSABuf{Buf: &b[0], Len: uint32(len(b))}
+	var bytes uint32
+	err = syscall.WSASend(conn.sock.handle, &buf, 1, &bytes, 0, &c.o, nil)
+	n, err := conn.sock.asyncIo(c, &conn.sock.writeDeadline, bytes, err)
+	if err != nil {
+		if _, ok := err.(syscall.Errno); ok {
+			err = os.NewSyscallError("wsasend", err)
+		}
+		return 0, conn.opErr("write", err)
+	}
+	return n, err
+}
+
+// Close closes the socket connection, failing any pending read or write calls.
+func (conn *HvsockConn) Close() error {
+	return conn.sock.Close()
+}
+
+func (conn *HvsockConn) shutdown(how int) error {
+	err := syscall.Shutdown(conn.sock.handle, syscall.SHUT_RD)
+	if err != nil {
+		return os.NewSyscallError("shutdown", err)
+	}
+	return nil
+}
+
+// CloseRead shuts down the read end of the socket.
+func (conn *HvsockConn) CloseRead() error {
+	err := conn.shutdown(syscall.SHUT_RD)
+	if err != nil {
+		return conn.opErr("close", err)
+	}
+	return nil
+}
+
+// CloseWrite shuts down the write end of the socket, notifying the other endpoint that
+// no more data will be written.
+func (conn *HvsockConn) CloseWrite() error {
+	err := conn.shutdown(syscall.SHUT_WR)
+	if err != nil {
+		return conn.opErr("close", err)
+	}
+	return nil
+}
+
+// LocalAddr returns the local address of the connection.
+func (conn *HvsockConn) LocalAddr() net.Addr {
+	return &conn.local
+}
+
+// RemoteAddr returns the remote address of the connection.
+func (conn *HvsockConn) RemoteAddr() net.Addr {
+	return &conn.remote
+}
+
+// SetDeadline implements the net.Conn SetDeadline method.
+func (conn *HvsockConn) SetDeadline(t time.Time) error {
+	conn.SetReadDeadline(t)
+	conn.SetWriteDeadline(t)
+	return nil
+}
+
+// SetReadDeadline implements the net.Conn SetReadDeadline method.
+func (conn *HvsockConn) SetReadDeadline(t time.Time) error {
+	return conn.sock.SetReadDeadline(t)
+}
+
+// SetWriteDeadline implements the net.Conn SetWriteDeadline method.
+func (conn *HvsockConn) SetWriteDeadline(t time.Time) error {
+	return conn.sock.SetWriteDeadline(t)
+}

vendor/github.com/Microsoft/go-winio/pipe.go

@@ -0,0 +1,510 @@
+// +build windows
+
+package winio
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"io"
+	"net"
+	"os"
+	"runtime"
+	"syscall"
+	"time"
+	"unsafe"
+)
+
+//sys connectNamedPipe(pipe syscall.Handle, o *syscall.Overlapped) (err error) = ConnectNamedPipe
+//sys createNamedPipe(name string, flags uint32, pipeMode uint32, maxInstances uint32, outSize uint32, inSize uint32, defaultTimeout uint32, sa *syscall.SecurityAttributes) (handle syscall.Handle, err error)  [failretval==syscall.InvalidHandle] = CreateNamedPipeW
+//sys createFile(name string, access uint32, mode uint32, sa *syscall.SecurityAttributes, createmode uint32, attrs uint32, templatefile syscall.Handle) (handle syscall.Handle, err error) [failretval==syscall.InvalidHandle] = CreateFileW
+//sys getNamedPipeInfo(pipe syscall.Handle, flags *uint32, outSize *uint32, inSize *uint32, maxInstances *uint32) (err error) = GetNamedPipeInfo
+//sys getNamedPipeHandleState(pipe syscall.Handle, state *uint32, curInstances *uint32, maxCollectionCount *uint32, collectDataTimeout *uint32, userName *uint16, maxUserNameSize uint32) (err error) = GetNamedPipeHandleStateW
+//sys localAlloc(uFlags uint32, length uint32) (ptr uintptr) = LocalAlloc
+//sys ntCreateNamedPipeFile(pipe *syscall.Handle, access uint32, oa *objectAttributes, iosb *ioStatusBlock, share uint32, disposition uint32, options uint32, typ uint32, readMode uint32, completionMode uint32, maxInstances uint32, inboundQuota uint32, outputQuota uint32, timeout *int64) (status ntstatus) = ntdll.NtCreateNamedPipeFile
+//sys rtlNtStatusToDosError(status ntstatus) (winerr error) = ntdll.RtlNtStatusToDosErrorNoTeb
+//sys rtlDosPathNameToNtPathName(name *uint16, ntName *unicodeString, filePart uintptr, reserved uintptr) (status ntstatus) = ntdll.RtlDosPathNameToNtPathName_U
+//sys rtlDefaultNpAcl(dacl *uintptr) (status ntstatus) = ntdll.RtlDefaultNpAcl
+
+type ioStatusBlock struct {
+	Status, Information uintptr
+}
+
+type objectAttributes struct {
+	Length             uintptr
+	RootDirectory      uintptr
+	ObjectName         *unicodeString
+	Attributes         uintptr
+	SecurityDescriptor *securityDescriptor
+	SecurityQoS        uintptr
+}
+
+type unicodeString struct {
+	Length        uint16
+	MaximumLength uint16
+	Buffer        uintptr
+}
+
+type securityDescriptor struct {
+	Revision byte
+	Sbz1     byte
+	Control  uint16
+	Owner    uintptr
+	Group    uintptr
+	Sacl     uintptr
+	Dacl     uintptr
+}
+
+type ntstatus int32
+
+func (status ntstatus) Err() error {
+	if status >= 0 {
+		return nil
+	}
+	return rtlNtStatusToDosError(status)
+}
+
+const (
+	cERROR_PIPE_BUSY      = syscall.Errno(231)
+	cERROR_NO_DATA        = syscall.Errno(232)
+	cERROR_PIPE_CONNECTED = syscall.Errno(535)
+	cERROR_SEM_TIMEOUT    = syscall.Errno(121)
+
+	cSECURITY_SQOS_PRESENT = 0x100000
+	cSECURITY_ANONYMOUS    = 0
+
+	cPIPE_TYPE_MESSAGE = 4
+
+	cPIPE_READMODE_MESSAGE = 2
+
+	cFILE_OPEN   = 1
+	cFILE_CREATE = 2
+
+	cFILE_PIPE_MESSAGE_TYPE          = 1
+	cFILE_PIPE_REJECT_REMOTE_CLIENTS = 2
+
+	cSE_DACL_PRESENT = 4
+)
+
+var (
+	// ErrPipeListenerClosed is returned for pipe operations on listeners that have been closed.
+	// This error should match net.errClosing since docker takes a dependency on its text.
+	ErrPipeListenerClosed = errors.New("use of closed network connection")
+
+	errPipeWriteClosed = errors.New("pipe has been closed for write")
+)
+
+type win32Pipe struct {
+	*win32File
+	path string
+}
+
+type win32MessageBytePipe struct {
+	win32Pipe
+	writeClosed bool
+	readEOF     bool
+}
+
+type pipeAddress string
+
+func (f *win32Pipe) LocalAddr() net.Addr {
+	return pipeAddress(f.path)
+}
+
+func (f *win32Pipe) RemoteAddr() net.Addr {
+	return pipeAddress(f.path)
+}
+
+func (f *win32Pipe) SetDeadline(t time.Time) error {
+	f.SetReadDeadline(t)
+	f.SetWriteDeadline(t)
+	return nil
+}
+
+// CloseWrite closes the write side of a message pipe in byte mode.
+func (f *win32MessageBytePipe) CloseWrite() error {
+	if f.writeClosed {
+		return errPipeWriteClosed
+	}
+	err := f.win32File.Flush()
+	if err != nil {
+		return err
+	}
+	_, err = f.win32File.Write(nil)
+	if err != nil {
+		return err
+	}
+	f.writeClosed = true
+	return nil
+}
+
+// Write writes bytes to a message pipe in byte mode. Zero-byte writes are ignored, since
+// they are used to implement CloseWrite().
+func (f *win32MessageBytePipe) Write(b []byte) (int, error) {
+	if f.writeClosed {
+		return 0, errPipeWriteClosed
+	}
+	if len(b) == 0 {
+		return 0, nil
+	}
+	return f.win32File.Write(b)
+}
+
+// Read reads bytes from a message pipe in byte mode. A read of a zero-byte message on a message
+// mode pipe will return io.EOF, as will all subsequent reads.
+func (f *win32MessageBytePipe) Read(b []byte) (int, error) {
+	if f.readEOF {
+		return 0, io.EOF
+	}
+	n, err := f.win32File.Read(b)
+	if err == io.EOF {
+		// If this was the result of a zero-byte read, then
+		// it is possible that the read was due to a zero-size
+		// message. Since we are simulating CloseWrite with a
+		// zero-byte message, ensure that all future Read() calls
+		// also return EOF.
+		f.readEOF = true
+	} else if err == syscall.ERROR_MORE_DATA {
+		// ERROR_MORE_DATA indicates that the pipe's read mode is message mode
+		// and the message still has more bytes. Treat this as a success, since
+		// this package presents all named pipes as byte streams.
+		err = nil
+	}
+	return n, err
+}
+
+func (s pipeAddress) Network() string {
+	return "pipe"
+}
+
+func (s pipeAddress) String() string {
+	return string(s)
+}
+
+// tryDialPipe attempts to dial the pipe at `path` until `ctx` cancellation or timeout.
+func tryDialPipe(ctx context.Context, path *string) (syscall.Handle, error) {
+	for {
+		select {
+		case <-ctx.Done():
+			return syscall.Handle(0), ctx.Err()
+		default:
+			h, err := createFile(*path, syscall.GENERIC_READ|syscall.GENERIC_WRITE, 0, nil, syscall.OPEN_EXISTING, syscall.FILE_FLAG_OVERLAPPED|cSECURITY_SQOS_PRESENT|cSECURITY_ANONYMOUS, 0)
+			if err == nil {
+				return h, nil
+			}
+			if err != cERROR_PIPE_BUSY {
+				return h, &os.PathError{Err: err, Op: "open", Path: *path}
+			}
+			// Wait 10 msec and try again. This is a rather simplistic
+			// view, as we always try each 10 milliseconds.
+			time.Sleep(time.Millisecond * 10)
+		}
+	}
+}
+
+// DialPipe connects to a named pipe by path, timing out if the connection
+// takes longer than the specified duration. If timeout is nil, then we use
+// a default timeout of 2 seconds.  (We do not use WaitNamedPipe.)
+func DialPipe(path string, timeout *time.Duration) (net.Conn, error) {
+	var absTimeout time.Time
+	if timeout != nil {
+		absTimeout = time.Now().Add(*timeout)
+	} else {
+		absTimeout = time.Now().Add(time.Second * 2)
+	}
+	ctx, _ := context.WithDeadline(context.Background(), absTimeout)
+	conn, err := DialPipeContext(ctx, path)
+	if err == context.DeadlineExceeded {
+		return nil, ErrTimeout
+	}
+	return conn, err
+}
+
+// DialPipeContext attempts to connect to a named pipe by `path` until `ctx`
+// cancellation or timeout.
+func DialPipeContext(ctx context.Context, path string) (net.Conn, error) {
+	var err error
+	var h syscall.Handle
+	h, err = tryDialPipe(ctx, &path)
+	if err != nil {
+		return nil, err
+	}
+
+	var flags uint32
+	err = getNamedPipeInfo(h, &flags, nil, nil, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	f, err := makeWin32File(h)
+	if err != nil {
+		syscall.Close(h)
+		return nil, err
+	}
+
+	// If the pipe is in message mode, return a message byte pipe, which
+	// supports CloseWrite().
+	if flags&cPIPE_TYPE_MESSAGE != 0 {
+		return &win32MessageBytePipe{
+			win32Pipe: win32Pipe{win32File: f, path: path},
+		}, nil
+	}
+	return &win32Pipe{win32File: f, path: path}, nil
+}
+
+type acceptResponse struct {
+	f   *win32File
+	err error
+}
+
+type win32PipeListener struct {
+	firstHandle syscall.Handle
+	path        string
+	config      PipeConfig
+	acceptCh    chan (chan acceptResponse)
+	closeCh     chan int
+	doneCh      chan int
+}
+
+func makeServerPipeHandle(path string, sd []byte, c *PipeConfig, first bool) (syscall.Handle, error) {
+	path16, err := syscall.UTF16FromString(path)
+	if err != nil {
+		return 0, &os.PathError{Op: "open", Path: path, Err: err}
+	}
+
+	var oa objectAttributes
+	oa.Length = unsafe.Sizeof(oa)
+
+	var ntPath unicodeString
+	if err := rtlDosPathNameToNtPathName(&path16[0], &ntPath, 0, 0).Err(); err != nil {
+		return 0, &os.PathError{Op: "open", Path: path, Err: err}
+	}
+	defer localFree(ntPath.Buffer)
+	oa.ObjectName = &ntPath
+
+	// The security descriptor is only needed for the first pipe.
+	if first {
+		if sd != nil {
+			len := uint32(len(sd))
+			sdb := localAlloc(0, len)
+			defer localFree(sdb)
+			copy((*[0xffff]byte)(unsafe.Pointer(sdb))[:], sd)
+			oa.SecurityDescriptor = (*securityDescriptor)(unsafe.Pointer(sdb))
+		} else {
+			// Construct the default named pipe security descriptor.
+			var dacl uintptr
+			if err := rtlDefaultNpAcl(&dacl).Err(); err != nil {
+				return 0, fmt.Errorf("getting default named pipe ACL: %s", err)
+			}
+			defer localFree(dacl)
+
+			sdb := &securityDescriptor{
+				Revision: 1,
+				Control:  cSE_DACL_PRESENT,
+				Dacl:     dacl,
+			}
+			oa.SecurityDescriptor = sdb
+		}
+	}
+
+	typ := uint32(cFILE_PIPE_REJECT_REMOTE_CLIENTS)
+	if c.MessageMode {
+		typ |= cFILE_PIPE_MESSAGE_TYPE
+	}
+
+	disposition := uint32(cFILE_OPEN)
+	access := uint32(syscall.GENERIC_READ | syscall.GENERIC_WRITE | syscall.SYNCHRONIZE)
+	if first {
+		disposition = cFILE_CREATE
+		// By not asking for read or write access, the named pipe file system
+		// will put this pipe into an initially disconnected state, blocking
+		// client connections until the next call with first == false.
+		access = syscall.SYNCHRONIZE
+	}
+
+	timeout := int64(-50 * 10000) // 50ms
+
+	var (
+		h    syscall.Handle
+		iosb ioStatusBlock
+	)
+	err = ntCreateNamedPipeFile(&h, access, &oa, &iosb, syscall.FILE_SHARE_READ|syscall.FILE_SHARE_WRITE, disposition, 0, typ, 0, 0, 0xffffffff, uint32(c.InputBufferSize), uint32(c.OutputBufferSize), &timeout).Err()
+	if err != nil {
+		return 0, &os.PathError{Op: "open", Path: path, Err: err}
+	}
+
+	runtime.KeepAlive(ntPath)
+	return h, nil
+}
+
+func (l *win32PipeListener) makeServerPipe() (*win32File, error) {
+	h, err := makeServerPipeHandle(l.path, nil, &l.config, false)
+	if err != nil {
+		return nil, err
+	}
+	f, err := makeWin32File(h)
+	if err != nil {
+		syscall.Close(h)
+		return nil, err
+	}
+	return f, nil
+}
+
+func (l *win32PipeListener) makeConnectedServerPipe() (*win32File, error) {
+	p, err := l.makeServerPipe()
+	if err != nil {
+		return nil, err
+	}
+
+	// Wait for the client to connect.
+	ch := make(chan error)
+	go func(p *win32File) {
+		ch <- connectPipe(p)
+	}(p)
+
+	select {
+	case err = <-ch:
+		if err != nil {
+			p.Close()
+			p = nil
+		}
+	case <-l.closeCh:
+		// Abort the connect request by closing the handle.
+		p.Close()
+		p = nil
+		err = <-ch
+		if err == nil || err == ErrFileClosed {
+			err = ErrPipeListenerClosed
+		}
+	}
+	return p, err
+}
+
+func (l *win32PipeListener) listenerRoutine() {
+	closed := false
+	for !closed {
+		select {
+		case <-l.closeCh:
+			closed = true
+		case responseCh := <-l.acceptCh:
+			var (
+				p   *win32File
+				err error
+			)
+			for {
+				p, err = l.makeConnectedServerPipe()
+				// If the connection was immediately closed by the client, try
+				// again.
+				if err != cERROR_NO_DATA {
+					break
+				}
+			}
+			responseCh <- acceptResponse{p, err}
+			closed = err == ErrPipeListenerClosed
+		}
+	}
+	syscall.Close(l.firstHandle)
+	l.firstHandle = 0
+	// Notify Close() and Accept() callers that the handle has been closed.
+	close(l.doneCh)
+}
+
+// PipeConfig contain configuration for the pipe listener.
+type PipeConfig struct {
+	// SecurityDescriptor contains a Windows security descriptor in SDDL format.
+	SecurityDescriptor string
+
+	// MessageMode determines whether the pipe is in byte or message mode. In either
+	// case the pipe is read in byte mode by default. The only practical difference in
+	// this implementation is that CloseWrite() is only supported for message mode pipes;
+	// CloseWrite() is implemented as a zero-byte write, but zero-byte writes are only
+	// transferred to the reader (and returned as io.EOF in this implementation)
+	// when the pipe is in message mode.
+	MessageMode bool
+
+	// InputBufferSize specifies the size the input buffer, in bytes.
+	InputBufferSize int32
+
+	// OutputBufferSize specifies the size the input buffer, in bytes.
+	OutputBufferSize int32
+}
+
+// ListenPipe creates a listener on a Windows named pipe path, e.g. \\.\pipe\mypipe.
+// The pipe must not already exist.
+func ListenPipe(path string, c *PipeConfig) (net.Listener, error) {
+	var (
+		sd  []byte
+		err error
+	)
+	if c == nil {
+		c = &PipeConfig{}
+	}
+	if c.SecurityDescriptor != "" {
+		sd, err = SddlToSecurityDescriptor(c.SecurityDescriptor)
+		if err != nil {
+			return nil, err
+		}
+	}
+	h, err := makeServerPipeHandle(path, sd, c, true)
+	if err != nil {
+		return nil, err
+	}
+	l := &win32PipeListener{
+		firstHandle: h,
+		path:        path,
+		config:      *c,
+		acceptCh:    make(chan (chan acceptResponse)),
+		closeCh:     make(chan int),
+		doneCh:      make(chan int),
+	}
+	go l.listenerRoutine()
+	return l, nil
+}
+
+func connectPipe(p *win32File) error {
+	c, err := p.prepareIo()
+	if err != nil {
+		return err
+	}
+	defer p.wg.Done()
+
+	err = connectNamedPipe(p.handle, &c.o)
+	_, err = p.asyncIo(c, nil, 0, err)
+	if err != nil && err != cERROR_PIPE_CONNECTED {
+		return err
+	}
+	return nil
+}
+
+func (l *win32PipeListener) Accept() (net.Conn, error) {
+	ch := make(chan acceptResponse)
+	select {
+	case l.acceptCh <- ch:
+		response := <-ch
+		err := response.err
+		if err != nil {
+			return nil, err
+		}
+		if l.config.MessageMode {
+			return &win32MessageBytePipe{
+				win32Pipe: win32Pipe{win32File: response.f, path: l.path},
+			}, nil
+		}
+		return &win32Pipe{win32File: response.f, path: l.path}, nil
+	case <-l.doneCh:
+		return nil, ErrPipeListenerClosed
+	}
+}
+
+func (l *win32PipeListener) Close() error {
+	select {
+	case l.closeCh <- 1:
+		<-l.doneCh
+	case <-l.doneCh:
+	}
+	return nil
+}
+
+func (l *win32PipeListener) Addr() net.Addr {
+	return pipeAddress(l.path)
+}

vendor/github.com/Microsoft/go-winio/pkg/guid/guid.go

@@ -0,0 +1,235 @@
+// Package guid provides a GUID type. The backing structure for a GUID is
+// identical to that used by the golang.org/x/sys/windows GUID type.
+// There are two main binary encodings used for a GUID, the big-endian encoding,
+// and the Windows (mixed-endian) encoding. See here for details:
+// https://en.wikipedia.org/wiki/Universally_unique_identifier#Encoding
+package guid
+
+import (
+	"crypto/rand"
+	"crypto/sha1"
+	"encoding"
+	"encoding/binary"
+	"fmt"
+	"strconv"
+
+	"golang.org/x/sys/windows"
+)
+
+// Variant specifies which GUID variant (or "type") of the GUID. It determines
+// how the entirety of the rest of the GUID is interpreted.
+type Variant uint8
+
+// The variants specified by RFC 4122.
+const (
+	// VariantUnknown specifies a GUID variant which does not conform to one of
+	// the variant encodings specified in RFC 4122.
+	VariantUnknown Variant = iota
+	VariantNCS
+	VariantRFC4122
+	VariantMicrosoft
+	VariantFuture
+)
+
+// Version specifies how the bits in the GUID were generated. For instance, a
+// version 4 GUID is randomly generated, and a version 5 is generated from the
+// hash of an input string.
+type Version uint8
+
+var _ = (encoding.TextMarshaler)(GUID{})
+var _ = (encoding.TextUnmarshaler)(&GUID{})
+
+// GUID represents a GUID/UUID. It has the same structure as
+// golang.org/x/sys/windows.GUID so that it can be used with functions expecting
+// that type. It is defined as its own type so that stringification and
+// marshaling can be supported. The representation matches that used by native
+// Windows code.
+type GUID windows.GUID
+
+// NewV4 returns a new version 4 (pseudorandom) GUID, as defined by RFC 4122.
+func NewV4() (GUID, error) {
+	var b [16]byte
+	if _, err := rand.Read(b[:]); err != nil {
+		return GUID{}, err
+	}
+
+	g := FromArray(b)
+	g.setVersion(4) // Version 4 means randomly generated.
+	g.setVariant(VariantRFC4122)
+
+	return g, nil
+}
+
+// NewV5 returns a new version 5 (generated from a string via SHA-1 hashing)
+// GUID, as defined by RFC 4122. The RFC is unclear on the encoding of the name,
+// and the sample code treats it as a series of bytes, so we do the same here.
+//
+// Some implementations, such as those found on Windows, treat the name as a
+// big-endian UTF16 stream of bytes. If that is desired, the string can be
+// encoded as such before being passed to this function.
+func NewV5(namespace GUID, name []byte) (GUID, error) {
+	b := sha1.New()
+	namespaceBytes := namespace.ToArray()
+	b.Write(namespaceBytes[:])
+	b.Write(name)
+
+	a := [16]byte{}
+	copy(a[:], b.Sum(nil))
+
+	g := FromArray(a)
+	g.setVersion(5) // Version 5 means generated from a string.
+	g.setVariant(VariantRFC4122)
+
+	return g, nil
+}
+
+func fromArray(b [16]byte, order binary.ByteOrder) GUID {
+	var g GUID
+	g.Data1 = order.Uint32(b[0:4])
+	g.Data2 = order.Uint16(b[4:6])
+	g.Data3 = order.Uint16(b[6:8])
+	copy(g.Data4[:], b[8:16])
+	return g
+}
+
+func (g GUID) toArray(order binary.ByteOrder) [16]byte {
+	b := [16]byte{}
+	order.PutUint32(b[0:4], g.Data1)
+	order.PutUint16(b[4:6], g.Data2)
+	order.PutUint16(b[6:8], g.Data3)
+	copy(b[8:16], g.Data4[:])
+	return b
+}
+
+// FromArray constructs a GUID from a big-endian encoding array of 16 bytes.
+func FromArray(b [16]byte) GUID {
+	return fromArray(b, binary.BigEndian)
+}
+
+// ToArray returns an array of 16 bytes representing the GUID in big-endian
+// encoding.
+func (g GUID) ToArray() [16]byte {
+	return g.toArray(binary.BigEndian)
+}
+
+// FromWindowsArray constructs a GUID from a Windows encoding array of bytes.
+func FromWindowsArray(b [16]byte) GUID {
+	return fromArray(b, binary.LittleEndian)
+}
+
+// ToWindowsArray returns an array of 16 bytes representing the GUID in Windows
+// encoding.
+func (g GUID) ToWindowsArray() [16]byte {
+	return g.toArray(binary.LittleEndian)
+}
+
+func (g GUID) String() string {
+	return fmt.Sprintf(
+		"%08x-%04x-%04x-%04x-%012x",
+		g.Data1,
+		g.Data2,
+		g.Data3,
+		g.Data4[:2],
+		g.Data4[2:])
+}
+
+// FromString parses a string containing a GUID and returns the GUID. The only
+// format currently supported is the `xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx`
+// format.
+func FromString(s string) (GUID, error) {
+	if len(s) != 36 {
+		return GUID{}, fmt.Errorf("invalid GUID %q", s)
+	}
+	if s[8] != '-' || s[13] != '-' || s[18] != '-' || s[23] != '-' {
+		return GUID{}, fmt.Errorf("invalid GUID %q", s)
+	}
+
+	var g GUID
+
+	data1, err := strconv.ParseUint(s[0:8], 16, 32)
+	if err != nil {
+		return GUID{}, fmt.Errorf("invalid GUID %q", s)
+	}
+	g.Data1 = uint32(data1)
+
+	data2, err := strconv.ParseUint(s[9:13], 16, 16)
+	if err != nil {
+		return GUID{}, fmt.Errorf("invalid GUID %q", s)
+	}
+	g.Data2 = uint16(data2)
+
+	data3, err := strconv.ParseUint(s[14:18], 16, 16)
+	if err != nil {
+		return GUID{}, fmt.Errorf("invalid GUID %q", s)
+	}
+	g.Data3 = uint16(data3)
+
+	for i, x := range []int{19, 21, 24, 26, 28, 30, 32, 34} {
+		v, err := strconv.ParseUint(s[x:x+2], 16, 8)
+		if err != nil {
+			return GUID{}, fmt.Errorf("invalid GUID %q", s)
+		}
+		g.Data4[i] = uint8(v)
+	}
+
+	return g, nil
+}
+
+func (g *GUID) setVariant(v Variant) {
+	d := g.Data4[0]
+	switch v {
+	case VariantNCS:
+		d = (d & 0x7f)
+	case VariantRFC4122:
+		d = (d & 0x3f) | 0x80
+	case VariantMicrosoft:
+		d = (d & 0x1f) | 0xc0
+	case VariantFuture:
+		d = (d & 0x0f) | 0xe0
+	case VariantUnknown:
+		fallthrough
+	default:
+		panic(fmt.Sprintf("invalid variant: %d", v))
+	}
+	g.Data4[0] = d
+}
+
+// Variant returns the GUID variant, as defined in RFC 4122.
+func (g GUID) Variant() Variant {
+	b := g.Data4[0]
+	if b&0x80 == 0 {
+		return VariantNCS
+	} else if b&0xc0 == 0x80 {
+		return VariantRFC4122
+	} else if b&0xe0 == 0xc0 {
+		return VariantMicrosoft
+	} else if b&0xe0 == 0xe0 {
+		return VariantFuture
+	}
+	return VariantUnknown
+}
+
+func (g *GUID) setVersion(v Version) {
+	g.Data3 = (g.Data3 & 0x0fff) | (uint16(v) << 12)
+}
+
+// Version returns the GUID version, as defined in RFC 4122.
+func (g GUID) Version() Version {
+	return Version((g.Data3 & 0xF000) >> 12)
+}
+
+// MarshalText returns the textual representation of the GUID.
+func (g GUID) MarshalText() ([]byte, error) {
+	return []byte(g.String()), nil
+}
+
+// UnmarshalText takes the textual representation of a GUID, and unmarhals it
+// into this GUID.
+func (g *GUID) UnmarshalText(text []byte) error {
+	g2, err := FromString(string(text))
+	if err != nil {
+		return err
+	}
+	*g = g2
+	return nil
+}

vendor/github.com/Microsoft/go-winio/privilege.go

@@ -0,0 +1,202 @@
+// +build windows
+
+package winio
+
+import (
+	"bytes"
+	"encoding/binary"
+	"fmt"
+	"runtime"
+	"sync"
+	"syscall"
+	"unicode/utf16"
+
+	"golang.org/x/sys/windows"
+)
+
+//sys adjustTokenPrivileges(token windows.Token, releaseAll bool, input *byte, outputSize uint32, output *byte, requiredSize *uint32) (success bool, err error) [true] = advapi32.AdjustTokenPrivileges
+//sys impersonateSelf(level uint32) (err error) = advapi32.ImpersonateSelf
+//sys revertToSelf() (err error) = advapi32.RevertToSelf
+//sys openThreadToken(thread syscall.Handle, accessMask uint32, openAsSelf bool, token *windows.Token) (err error) = advapi32.OpenThreadToken
+//sys getCurrentThread() (h syscall.Handle) = GetCurrentThread
+//sys lookupPrivilegeValue(systemName string, name string, luid *uint64) (err error) = advapi32.LookupPrivilegeValueW
+//sys lookupPrivilegeName(systemName string, luid *uint64, buffer *uint16, size *uint32) (err error) = advapi32.LookupPrivilegeNameW
+//sys lookupPrivilegeDisplayName(systemName string, name *uint16, buffer *uint16, size *uint32, languageId *uint32) (err error) = advapi32.LookupPrivilegeDisplayNameW
+
+const (
+	SE_PRIVILEGE_ENABLED = 2
+
+	ERROR_NOT_ALL_ASSIGNED syscall.Errno = 1300
+
+	SeBackupPrivilege  = "SeBackupPrivilege"
+	SeRestorePrivilege = "SeRestorePrivilege"
+)
+
+const (
+	securityAnonymous = iota
+	securityIdentification
+	securityImpersonation
+	securityDelegation
+)
+
+var (
+	privNames     = make(map[string]uint64)
+	privNameMutex sync.Mutex
+)
+
+// PrivilegeError represents an error enabling privileges.
+type PrivilegeError struct {
+	privileges []uint64
+}
+
+func (e *PrivilegeError) Error() string {
+	s := ""
+	if len(e.privileges) > 1 {
+		s = "Could not enable privileges "
+	} else {
+		s = "Could not enable privilege "
+	}
+	for i, p := range e.privileges {
+		if i != 0 {
+			s += ", "
+		}
+		s += `"`
+		s += getPrivilegeName(p)
+		s += `"`
+	}
+	return s
+}
+
+// RunWithPrivilege enables a single privilege for a function call.
+func RunWithPrivilege(name string, fn func() error) error {
+	return RunWithPrivileges([]string{name}, fn)
+}
+
+// RunWithPrivileges enables privileges for a function call.
+func RunWithPrivileges(names []string, fn func() error) error {
+	privileges, err := mapPrivileges(names)
+	if err != nil {
+		return err
+	}
+	runtime.LockOSThread()
+	defer runtime.UnlockOSThread()
+	token, err := newThreadToken()
+	if err != nil {
+		return err
+	}
+	defer releaseThreadToken(token)
+	err = adjustPrivileges(token, privileges, SE_PRIVILEGE_ENABLED)
+	if err != nil {
+		return err
+	}
+	return fn()
+}
+
+func mapPrivileges(names []string) ([]uint64, error) {
+	var privileges []uint64
+	privNameMutex.Lock()
+	defer privNameMutex.Unlock()
+	for _, name := range names {
+		p, ok := privNames[name]
+		if !ok {
+			err := lookupPrivilegeValue("", name, &p)
+			if err != nil {
+				return nil, err
+			}
+			privNames[name] = p
+		}
+		privileges = append(privileges, p)
+	}
+	return privileges, nil
+}
+
+// EnableProcessPrivileges enables privileges globally for the process.
+func EnableProcessPrivileges(names []string) error {
+	return enableDisableProcessPrivilege(names, SE_PRIVILEGE_ENABLED)
+}
+
+// DisableProcessPrivileges disables privileges globally for the process.
+func DisableProcessPrivileges(names []string) error {
+	return enableDisableProcessPrivilege(names, 0)
+}
+
+func enableDisableProcessPrivilege(names []string, action uint32) error {
+	privileges, err := mapPrivileges(names)
+	if err != nil {
+		return err
+	}
+
+	p, _ := windows.GetCurrentProcess()
+	var token windows.Token
+	err = windows.OpenProcessToken(p, windows.TOKEN_ADJUST_PRIVILEGES|windows.TOKEN_QUERY, &token)
+	if err != nil {
+		return err
+	}
+
+	defer token.Close()
+	return adjustPrivileges(token, privileges, action)
+}
+
+func adjustPrivileges(token windows.Token, privileges []uint64, action uint32) error {
+	var b bytes.Buffer
+	binary.Write(&b, binary.LittleEndian, uint32(len(privileges)))
+	for _, p := range privileges {
+		binary.Write(&b, binary.LittleEndian, p)
+		binary.Write(&b, binary.LittleEndian, action)
+	}
+	prevState := make([]byte, b.Len())
+	reqSize := uint32(0)
+	success, err := adjustTokenPrivileges(token, false, &b.Bytes()[0], uint32(len(prevState)), &prevState[0], &reqSize)
+	if !success {
+		return err
+	}
+	if err == ERROR_NOT_ALL_ASSIGNED {
+		return &PrivilegeError{privileges}
+	}
+	return nil
+}
+
+func getPrivilegeName(luid uint64) string {
+	var nameBuffer [256]uint16
+	bufSize := uint32(len(nameBuffer))
+	err := lookupPrivilegeName("", &luid, &nameBuffer[0], &bufSize)
+	if err != nil {
+		return fmt.Sprintf("<unknown privilege %d>", luid)
+	}
+
+	var displayNameBuffer [256]uint16
+	displayBufSize := uint32(len(displayNameBuffer))
+	var langID uint32
+	err = lookupPrivilegeDisplayName("", &nameBuffer[0], &displayNameBuffer[0], &displayBufSize, &langID)
+	if err != nil {
+		return fmt.Sprintf("<unknown privilege %s>", string(utf16.Decode(nameBuffer[:bufSize])))
+	}
+
+	return string(utf16.Decode(displayNameBuffer[:displayBufSize]))
+}
+
+func newThreadToken() (windows.Token, error) {
+	err := impersonateSelf(securityImpersonation)
+	if err != nil {
+		return 0, err
+	}
+
+	var token windows.Token
+	err = openThreadToken(getCurrentThread(), syscall.TOKEN_ADJUST_PRIVILEGES|syscall.TOKEN_QUERY, false, &token)
+	if err != nil {
+		rerr := revertToSelf()
+		if rerr != nil {
+			panic(rerr)
+		}
+		return 0, err
+	}
+	return token, nil
+}
+
+func releaseThreadToken(h windows.Token) {
+	err := revertToSelf()
+	if err != nil {
+		panic(err)
+	}
+	h.Close()
+}

vendor/github.com/Microsoft/go-winio/reparse.go

@@ -0,0 +1,128 @@
+package winio
+
+import (
+	"bytes"
+	"encoding/binary"
+	"fmt"
+	"strings"
+	"unicode/utf16"
+	"unsafe"
+)
+
+const (
+	reparseTagMountPoint = 0xA0000003
+	reparseTagSymlink    = 0xA000000C
+)
+
+type reparseDataBuffer struct {
+	ReparseTag           uint32
+	ReparseDataLength    uint16
+	Reserved             uint16
+	SubstituteNameOffset uint16
+	SubstituteNameLength uint16
+	PrintNameOffset      uint16
+	PrintNameLength      uint16
+}
+
+// ReparsePoint describes a Win32 symlink or mount point.
+type ReparsePoint struct {
+	Target       string
+	IsMountPoint bool
+}
+
+// UnsupportedReparsePointError is returned when trying to decode a non-symlink or
+// mount point reparse point.
+type UnsupportedReparsePointError struct {
+	Tag uint32
+}
+
+func (e *UnsupportedReparsePointError) Error() string {
+	return fmt.Sprintf("unsupported reparse point %x", e.Tag)
+}
+
+// DecodeReparsePoint decodes a Win32 REPARSE_DATA_BUFFER structure containing either a symlink
+// or a mount point.
+func DecodeReparsePoint(b []byte) (*ReparsePoint, error) {
+	tag := binary.LittleEndian.Uint32(b[0:4])
+	return DecodeReparsePointData(tag, b[8:])
+}
+
+func DecodeReparsePointData(tag uint32, b []byte) (*ReparsePoint, error) {
+	isMountPoint := false
+	switch tag {
+	case reparseTagMountPoint:
+		isMountPoint = true
+	case reparseTagSymlink:
+	default:
+		return nil, &UnsupportedReparsePointError{tag}
+	}
+	nameOffset := 8 + binary.LittleEndian.Uint16(b[4:6])
+	if !isMountPoint {
+		nameOffset += 4
+	}
+	nameLength := binary.LittleEndian.Uint16(b[6:8])
+	name := make([]uint16, nameLength/2)
+	err := binary.Read(bytes.NewReader(b[nameOffset:nameOffset+nameLength]), binary.LittleEndian, &name)
+	if err != nil {
+		return nil, err
+	}
+	return &ReparsePoint{string(utf16.Decode(name)), isMountPoint}, nil
+}
+
+func isDriveLetter(c byte) bool {
+	return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')
+}
+
+// EncodeReparsePoint encodes a Win32 REPARSE_DATA_BUFFER structure describing a symlink or
+// mount point.
+func EncodeReparsePoint(rp *ReparsePoint) []byte {
+	// Generate an NT path and determine if this is a relative path.
+	var ntTarget string
+	relative := false
+	if strings.HasPrefix(rp.Target, `\\?\`) {
+		ntTarget = `\??\` + rp.Target[4:]
+	} else if strings.HasPrefix(rp.Target, `\\`) {
+		ntTarget = `\??\UNC\` + rp.Target[2:]
+	} else if len(rp.Target) >= 2 && isDriveLetter(rp.Target[0]) && rp.Target[1] == ':' {
+		ntTarget = `\??\` + rp.Target
+	} else {
+		ntTarget = rp.Target
+		relative = true
+	}
+
+	// The paths must be NUL-terminated even though they are counted strings.
+	target16 := utf16.Encode([]rune(rp.Target + "\x00"))
+	ntTarget16 := utf16.Encode([]rune(ntTarget + "\x00"))
+
+	size := int(unsafe.Sizeof(reparseDataBuffer{})) - 8
+	size += len(ntTarget16)*2 + len(target16)*2
+
+	tag := uint32(reparseTagMountPoint)
+	if !rp.IsMountPoint {
+		tag = reparseTagSymlink
+		size += 4 // Add room for symlink flags
+	}
+
+	data := reparseDataBuffer{
+		ReparseTag:           tag,
+		ReparseDataLength:    uint16(size),
+		SubstituteNameOffset: 0,
+		SubstituteNameLength: uint16((len(ntTarget16) - 1) * 2),
+		PrintNameOffset:      uint16(len(ntTarget16) * 2),
+		PrintNameLength:      uint16((len(target16) - 1) * 2),
+	}
+
+	var b bytes.Buffer
+	binary.Write(&b, binary.LittleEndian, &data)
+	if !rp.IsMountPoint {
+		flags := uint32(0)
+		if relative {
+			flags |= 1
+		}
+		binary.Write(&b, binary.LittleEndian, flags)
+	}
+
+	binary.Write(&b, binary.LittleEndian, ntTarget16)
+	binary.Write(&b, binary.LittleEndian, target16)
+	return b.Bytes()
+}

vendor/github.com/Microsoft/go-winio/sd.go

@@ -0,0 +1,98 @@
+// +build windows
+
+package winio
+
+import (
+	"syscall"
+	"unsafe"
+)
+
+//sys lookupAccountName(systemName *uint16, accountName string, sid *byte, sidSize *uint32, refDomain *uint16, refDomainSize *uint32, sidNameUse *uint32) (err error) = advapi32.LookupAccountNameW
+//sys convertSidToStringSid(sid *byte, str **uint16) (err error) = advapi32.ConvertSidToStringSidW
+//sys convertStringSecurityDescriptorToSecurityDescriptor(str string, revision uint32, sd *uintptr, size *uint32) (err error) = advapi32.ConvertStringSecurityDescriptorToSecurityDescriptorW
+//sys convertSecurityDescriptorToStringSecurityDescriptor(sd *byte, revision uint32, secInfo uint32, sddl **uint16, sddlSize *uint32) (err error) = advapi32.ConvertSecurityDescriptorToStringSecurityDescriptorW
+//sys localFree(mem uintptr) = LocalFree
+//sys getSecurityDescriptorLength(sd uintptr) (len uint32) = advapi32.GetSecurityDescriptorLength
+
+const (
+	cERROR_NONE_MAPPED = syscall.Errno(1332)
+)
+
+type AccountLookupError struct {
+	Name string
+	Err  error
+}
+
+func (e *AccountLookupError) Error() string {
+	if e.Name == "" {
+		return "lookup account: empty account name specified"
+	}
+	var s string
+	switch e.Err {
+	case cERROR_NONE_MAPPED:
+		s = "not found"
+	default:
+		s = e.Err.Error()
+	}
+	return "lookup account " + e.Name + ": " + s
+}
+
+type SddlConversionError struct {
+	Sddl string
+	Err  error
+}
+
+func (e *SddlConversionError) Error() string {
+	return "convert " + e.Sddl + ": " + e.Err.Error()
+}
+
+// LookupSidByName looks up the SID of an account by name
+func LookupSidByName(name string) (sid string, err error) {
+	if name == "" {
+		return "", &AccountLookupError{name, cERROR_NONE_MAPPED}
+	}
+
+	var sidSize, sidNameUse, refDomainSize uint32
+	err = lookupAccountName(nil, name, nil, &sidSize, nil, &refDomainSize, &sidNameUse)
+	if err != nil && err != syscall.ERROR_INSUFFICIENT_BUFFER {
+		return "", &AccountLookupError{name, err}
+	}
+	sidBuffer := make([]byte, sidSize)
+	refDomainBuffer := make([]uint16, refDomainSize)
+	err = lookupAccountName(nil, name, &sidBuffer[0], &sidSize, &refDomainBuffer[0], &refDomainSize, &sidNameUse)
+	if err != nil {
+		return "", &AccountLookupError{name, err}
+	}
+	var strBuffer *uint16
+	err = convertSidToStringSid(&sidBuffer[0], &strBuffer)
+	if err != nil {
+		return "", &AccountLookupError{name, err}
+	}
+	sid = syscall.UTF16ToString((*[0xffff]uint16)(unsafe.Pointer(strBuffer))[:])
+	localFree(uintptr(unsafe.Pointer(strBuffer)))
+	return sid, nil
+}
+
+func SddlToSecurityDescriptor(sddl string) ([]byte, error) {
+	var sdBuffer uintptr
+	err := convertStringSecurityDescriptorToSecurityDescriptor(sddl, 1, &sdBuffer, nil)
+	if err != nil {
+		return nil, &SddlConversionError{sddl, err}
+	}
+	defer localFree(sdBuffer)
+	sd := make([]byte, getSecurityDescriptorLength(sdBuffer))
+	copy(sd, (*[0xffff]byte)(unsafe.Pointer(sdBuffer))[:len(sd)])
+	return sd, nil
+}
+
+func SecurityDescriptorToSddl(sd []byte) (string, error) {
+	var sddl *uint16
+	// The returned string length seems to including an aribtrary number of terminating NULs.
+	// Don't use it.
+	err := convertSecurityDescriptorToStringSecurityDescriptor(&sd[0], 1, 0xff, &sddl, nil)
+	if err != nil {
+		return "", err
+	}
+	defer localFree(uintptr(unsafe.Pointer(sddl)))
+	return syscall.UTF16ToString((*[0xffff]uint16)(unsafe.Pointer(sddl))[:]), nil
+}

vendor/github.com/Microsoft/go-winio/syscall.go

@@ -0,0 +1,3 @@
+package winio
+
+//go:generate go run $GOROOT/src/syscall/mksyscall_windows.go -output zsyscall_windows.go file.go pipe.go sd.go fileinfo.go privilege.go backup.go hvsock.go

vendor/github.com/Microsoft/go-winio/zsyscall_windows.go

@@ -0,0 +1,562 @@
+// Code generated by 'go generate'; DO NOT EDIT.
+
+package winio
+
+import (
+	"syscall"
+	"unsafe"
+
+	"golang.org/x/sys/windows"
+)
+
+var _ unsafe.Pointer
+
+// Do the interface allocations only once for common
+// Errno values.
+const (
+	errnoERROR_IO_PENDING = 997
+)
+
+var (
+	errERROR_IO_PENDING error = syscall.Errno(errnoERROR_IO_PENDING)
+)
+
+// errnoErr returns common boxed Errno values, to prevent
+// allocations at runtime.
+func errnoErr(e syscall.Errno) error {
+	switch e {
+	case 0:
+		return nil
+	case errnoERROR_IO_PENDING:
+		return errERROR_IO_PENDING
+	}
+	// TODO: add more here, after collecting data on the common
+	// error values see on Windows. (perhaps when running
+	// all.bat?)
+	return e
+}
+
+var (
+	modkernel32 = windows.NewLazySystemDLL("kernel32.dll")
+	modws2_32   = windows.NewLazySystemDLL("ws2_32.dll")
+	modntdll    = windows.NewLazySystemDLL("ntdll.dll")
+	modadvapi32 = windows.NewLazySystemDLL("advapi32.dll")
+
+	procCancelIoEx                                           = modkernel32.NewProc("CancelIoEx")
+	procCreateIoCompletionPort                               = modkernel32.NewProc("CreateIoCompletionPort")
+	procGetQueuedCompletionStatus                            = modkernel32.NewProc("GetQueuedCompletionStatus")
+	procSetFileCompletionNotificationModes                   = modkernel32.NewProc("SetFileCompletionNotificationModes")
+	procWSAGetOverlappedResult                               = modws2_32.NewProc("WSAGetOverlappedResult")
+	procConnectNamedPipe                                     = modkernel32.NewProc("ConnectNamedPipe")
+	procCreateNamedPipeW                                     = modkernel32.NewProc("CreateNamedPipeW")
+	procCreateFileW                                          = modkernel32.NewProc("CreateFileW")
+	procGetNamedPipeInfo                                     = modkernel32.NewProc("GetNamedPipeInfo")
+	procGetNamedPipeHandleStateW                             = modkernel32.NewProc("GetNamedPipeHandleStateW")
+	procLocalAlloc                                           = modkernel32.NewProc("LocalAlloc")
+	procNtCreateNamedPipeFile                                = modntdll.NewProc("NtCreateNamedPipeFile")
+	procRtlNtStatusToDosErrorNoTeb                           = modntdll.NewProc("RtlNtStatusToDosErrorNoTeb")
+	procRtlDosPathNameToNtPathName_U                         = modntdll.NewProc("RtlDosPathNameToNtPathName_U")
+	procRtlDefaultNpAcl                                      = modntdll.NewProc("RtlDefaultNpAcl")
+	procLookupAccountNameW                                   = modadvapi32.NewProc("LookupAccountNameW")
+	procConvertSidToStringSidW                               = modadvapi32.NewProc("ConvertSidToStringSidW")
+	procConvertStringSecurityDescriptorToSecurityDescriptorW = modadvapi32.NewProc("ConvertStringSecurityDescriptorToSecurityDescriptorW")
+	procConvertSecurityDescriptorToStringSecurityDescriptorW = modadvapi32.NewProc("ConvertSecurityDescriptorToStringSecurityDescriptorW")
+	procLocalFree                                            = modkernel32.NewProc("LocalFree")
+	procGetSecurityDescriptorLength                          = modadvapi32.NewProc("GetSecurityDescriptorLength")
+	procGetFileInformationByHandleEx                         = modkernel32.NewProc("GetFileInformationByHandleEx")
+	procSetFileInformationByHandle                           = modkernel32.NewProc("SetFileInformationByHandle")
+	procAdjustTokenPrivileges                                = modadvapi32.NewProc("AdjustTokenPrivileges")
+	procImpersonateSelf                                      = modadvapi32.NewProc("ImpersonateSelf")
+	procRevertToSelf                                         = modadvapi32.NewProc("RevertToSelf")
+	procOpenThreadToken                                      = modadvapi32.NewProc("OpenThreadToken")
+	procGetCurrentThread                                     = modkernel32.NewProc("GetCurrentThread")
+	procLookupPrivilegeValueW                                = modadvapi32.NewProc("LookupPrivilegeValueW")
+	procLookupPrivilegeNameW                                 = modadvapi32.NewProc("LookupPrivilegeNameW")
+	procLookupPrivilegeDisplayNameW                          = modadvapi32.NewProc("LookupPrivilegeDisplayNameW")
+	procBackupRead                                           = modkernel32.NewProc("BackupRead")
+	procBackupWrite                                          = modkernel32.NewProc("BackupWrite")
+	procbind                                                 = modws2_32.NewProc("bind")
+)
+
+func cancelIoEx(file syscall.Handle, o *syscall.Overlapped) (err error) {
+	r1, _, e1 := syscall.Syscall(procCancelIoEx.Addr(), 2, uintptr(file), uintptr(unsafe.Pointer(o)), 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func createIoCompletionPort(file syscall.Handle, port syscall.Handle, key uintptr, threadCount uint32) (newport syscall.Handle, err error) {
+	r0, _, e1 := syscall.Syscall6(procCreateIoCompletionPort.Addr(), 4, uintptr(file), uintptr(port), uintptr(key), uintptr(threadCount), 0, 0)
+	newport = syscall.Handle(r0)
+	if newport == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func getQueuedCompletionStatus(port syscall.Handle, bytes *uint32, key *uintptr, o **ioOperation, timeout uint32) (err error) {
+	r1, _, e1 := syscall.Syscall6(procGetQueuedCompletionStatus.Addr(), 5, uintptr(port), uintptr(unsafe.Pointer(bytes)), uintptr(unsafe.Pointer(key)), uintptr(unsafe.Pointer(o)), uintptr(timeout), 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func setFileCompletionNotificationModes(h syscall.Handle, flags uint8) (err error) {
+	r1, _, e1 := syscall.Syscall(procSetFileCompletionNotificationModes.Addr(), 2, uintptr(h), uintptr(flags), 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func wsaGetOverlappedResult(h syscall.Handle, o *syscall.Overlapped, bytes *uint32, wait bool, flags *uint32) (err error) {
+	var _p0 uint32
+	if wait {
+		_p0 = 1
+	} else {
+		_p0 = 0
+	}
+	r1, _, e1 := syscall.Syscall6(procWSAGetOverlappedResult.Addr(), 5, uintptr(h), uintptr(unsafe.Pointer(o)), uintptr(unsafe.Pointer(bytes)), uintptr(_p0), uintptr(unsafe.Pointer(flags)), 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func connectNamedPipe(pipe syscall.Handle, o *syscall.Overlapped) (err error) {
+	r1, _, e1 := syscall.Syscall(procConnectNamedPipe.Addr(), 2, uintptr(pipe), uintptr(unsafe.Pointer(o)), 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func createNamedPipe(name string, flags uint32, pipeMode uint32, maxInstances uint32, outSize uint32, inSize uint32, defaultTimeout uint32, sa *syscall.SecurityAttributes) (handle syscall.Handle, err error) {
+	var _p0 *uint16
+	_p0, err = syscall.UTF16PtrFromString(name)
+	if err != nil {
+		return
+	}
+	return _createNamedPipe(_p0, flags, pipeMode, maxInstances, outSize, inSize, defaultTimeout, sa)
+}
+
+func _createNamedPipe(name *uint16, flags uint32, pipeMode uint32, maxInstances uint32, outSize uint32, inSize uint32, defaultTimeout uint32, sa *syscall.SecurityAttributes) (handle syscall.Handle, err error) {
+	r0, _, e1 := syscall.Syscall9(procCreateNamedPipeW.Addr(), 8, uintptr(unsafe.Pointer(name)), uintptr(flags), uintptr(pipeMode), uintptr(maxInstances), uintptr(outSize), uintptr(inSize), uintptr(defaultTimeout), uintptr(unsafe.Pointer(sa)), 0)
+	handle = syscall.Handle(r0)
+	if handle == syscall.InvalidHandle {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func createFile(name string, access uint32, mode uint32, sa *syscall.SecurityAttributes, createmode uint32, attrs uint32, templatefile syscall.Handle) (handle syscall.Handle, err error) {
+	var _p0 *uint16
+	_p0, err = syscall.UTF16PtrFromString(name)
+	if err != nil {
+		return
+	}
+	return _createFile(_p0, access, mode, sa, createmode, attrs, templatefile)
+}
+
+func _createFile(name *uint16, access uint32, mode uint32, sa *syscall.SecurityAttributes, createmode uint32, attrs uint32, templatefile syscall.Handle) (handle syscall.Handle, err error) {
+	r0, _, e1 := syscall.Syscall9(procCreateFileW.Addr(), 7, uintptr(unsafe.Pointer(name)), uintptr(access), uintptr(mode), uintptr(unsafe.Pointer(sa)), uintptr(createmode), uintptr(attrs), uintptr(templatefile), 0, 0)
+	handle = syscall.Handle(r0)
+	if handle == syscall.InvalidHandle {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func getNamedPipeInfo(pipe syscall.Handle, flags *uint32, outSize *uint32, inSize *uint32, maxInstances *uint32) (err error) {
+	r1, _, e1 := syscall.Syscall6(procGetNamedPipeInfo.Addr(), 5, uintptr(pipe), uintptr(unsafe.Pointer(flags)), uintptr(unsafe.Pointer(outSize)), uintptr(unsafe.Pointer(inSize)), uintptr(unsafe.Pointer(maxInstances)), 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func getNamedPipeHandleState(pipe syscall.Handle, state *uint32, curInstances *uint32, maxCollectionCount *uint32, collectDataTimeout *uint32, userName *uint16, maxUserNameSize uint32) (err error) {
+	r1, _, e1 := syscall.Syscall9(procGetNamedPipeHandleStateW.Addr(), 7, uintptr(pipe), uintptr(unsafe.Pointer(state)), uintptr(unsafe.Pointer(curInstances)), uintptr(unsafe.Pointer(maxCollectionCount)), uintptr(unsafe.Pointer(collectDataTimeout)), uintptr(unsafe.Pointer(userName)), uintptr(maxUserNameSize), 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func localAlloc(uFlags uint32, length uint32) (ptr uintptr) {
+	r0, _, _ := syscall.Syscall(procLocalAlloc.Addr(), 2, uintptr(uFlags), uintptr(length), 0)
+	ptr = uintptr(r0)
+	return
+}
+
+func ntCreateNamedPipeFile(pipe *syscall.Handle, access uint32, oa *objectAttributes, iosb *ioStatusBlock, share uint32, disposition uint32, options uint32, typ uint32, readMode uint32, completionMode uint32, maxInstances uint32, inboundQuota uint32, outputQuota uint32, timeout *int64) (status ntstatus) {
+	r0, _, _ := syscall.Syscall15(procNtCreateNamedPipeFile.Addr(), 14, uintptr(unsafe.Pointer(pipe)), uintptr(access), uintptr(unsafe.Pointer(oa)), uintptr(unsafe.Pointer(iosb)), uintptr(share), uintptr(disposition), uintptr(options), uintptr(typ), uintptr(readMode), uintptr(completionMode), uintptr(maxInstances), uintptr(inboundQuota), uintptr(outputQuota), uintptr(unsafe.Pointer(timeout)), 0)
+	status = ntstatus(r0)
+	return
+}
+
+func rtlNtStatusToDosError(status ntstatus) (winerr error) {
+	r0, _, _ := syscall.Syscall(procRtlNtStatusToDosErrorNoTeb.Addr(), 1, uintptr(status), 0, 0)
+	if r0 != 0 {
+		winerr = syscall.Errno(r0)
+	}
+	return
+}
+
+func rtlDosPathNameToNtPathName(name *uint16, ntName *unicodeString, filePart uintptr, reserved uintptr) (status ntstatus) {
+	r0, _, _ := syscall.Syscall6(procRtlDosPathNameToNtPathName_U.Addr(), 4, uintptr(unsafe.Pointer(name)), uintptr(unsafe.Pointer(ntName)), uintptr(filePart), uintptr(reserved), 0, 0)
+	status = ntstatus(r0)
+	return
+}
+
+func rtlDefaultNpAcl(dacl *uintptr) (status ntstatus) {
+	r0, _, _ := syscall.Syscall(procRtlDefaultNpAcl.Addr(), 1, uintptr(unsafe.Pointer(dacl)), 0, 0)
+	status = ntstatus(r0)
+	return
+}
+
+func lookupAccountName(systemName *uint16, accountName string, sid *byte, sidSize *uint32, refDomain *uint16, refDomainSize *uint32, sidNameUse *uint32) (err error) {
+	var _p0 *uint16
+	_p0, err = syscall.UTF16PtrFromString(accountName)
+	if err != nil {
+		return
+	}
+	return _lookupAccountName(systemName, _p0, sid, sidSize, refDomain, refDomainSize, sidNameUse)
+}
+
+func _lookupAccountName(systemName *uint16, accountName *uint16, sid *byte, sidSize *uint32, refDomain *uint16, refDomainSize *uint32, sidNameUse *uint32) (err error) {
+	r1, _, e1 := syscall.Syscall9(procLookupAccountNameW.Addr(), 7, uintptr(unsafe.Pointer(systemName)), uintptr(unsafe.Pointer(accountName)), uintptr(unsafe.Pointer(sid)), uintptr(unsafe.Pointer(sidSize)), uintptr(unsafe.Pointer(refDomain)), uintptr(unsafe.Pointer(refDomainSize)), uintptr(unsafe.Pointer(sidNameUse)), 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func convertSidToStringSid(sid *byte, str **uint16) (err error) {
+	r1, _, e1 := syscall.Syscall(procConvertSidToStringSidW.Addr(), 2, uintptr(unsafe.Pointer(sid)), uintptr(unsafe.Pointer(str)), 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func convertStringSecurityDescriptorToSecurityDescriptor(str string, revision uint32, sd *uintptr, size *uint32) (err error) {
+	var _p0 *uint16
+	_p0, err = syscall.UTF16PtrFromString(str)
+	if err != nil {
+		return
+	}
+	return _convertStringSecurityDescriptorToSecurityDescriptor(_p0, revision, sd, size)
+}
+
+func _convertStringSecurityDescriptorToSecurityDescriptor(str *uint16, revision uint32, sd *uintptr, size *uint32) (err error) {
+	r1, _, e1 := syscall.Syscall6(procConvertStringSecurityDescriptorToSecurityDescriptorW.Addr(), 4, uintptr(unsafe.Pointer(str)), uintptr(revision), uintptr(unsafe.Pointer(sd)), uintptr(unsafe.Pointer(size)), 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func convertSecurityDescriptorToStringSecurityDescriptor(sd *byte, revision uint32, secInfo uint32, sddl **uint16, sddlSize *uint32) (err error) {
+	r1, _, e1 := syscall.Syscall6(procConvertSecurityDescriptorToStringSecurityDescriptorW.Addr(), 5, uintptr(unsafe.Pointer(sd)), uintptr(revision), uintptr(secInfo), uintptr(unsafe.Pointer(sddl)), uintptr(unsafe.Pointer(sddlSize)), 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func localFree(mem uintptr) {
+	syscall.Syscall(procLocalFree.Addr(), 1, uintptr(mem), 0, 0)
+	return
+}
+
+func getSecurityDescriptorLength(sd uintptr) (len uint32) {
+	r0, _, _ := syscall.Syscall(procGetSecurityDescriptorLength.Addr(), 1, uintptr(sd), 0, 0)
+	len = uint32(r0)
+	return
+}
+
+func getFileInformationByHandleEx(h syscall.Handle, class uint32, buffer *byte, size uint32) (err error) {
+	r1, _, e1 := syscall.Syscall6(procGetFileInformationByHandleEx.Addr(), 4, uintptr(h), uintptr(class), uintptr(unsafe.Pointer(buffer)), uintptr(size), 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func setFileInformationByHandle(h syscall.Handle, class uint32, buffer *byte, size uint32) (err error) {
+	r1, _, e1 := syscall.Syscall6(procSetFileInformationByHandle.Addr(), 4, uintptr(h), uintptr(class), uintptr(unsafe.Pointer(buffer)), uintptr(size), 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func adjustTokenPrivileges(token windows.Token, releaseAll bool, input *byte, outputSize uint32, output *byte, requiredSize *uint32) (success bool, err error) {
+	var _p0 uint32
+	if releaseAll {
+		_p0 = 1
+	} else {
+		_p0 = 0
+	}
+	r0, _, e1 := syscall.Syscall6(procAdjustTokenPrivileges.Addr(), 6, uintptr(token), uintptr(_p0), uintptr(unsafe.Pointer(input)), uintptr(outputSize), uintptr(unsafe.Pointer(output)), uintptr(unsafe.Pointer(requiredSize)))
+	success = r0 != 0
+	if true {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func impersonateSelf(level uint32) (err error) {
+	r1, _, e1 := syscall.Syscall(procImpersonateSelf.Addr(), 1, uintptr(level), 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func revertToSelf() (err error) {
+	r1, _, e1 := syscall.Syscall(procRevertToSelf.Addr(), 0, 0, 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func openThreadToken(thread syscall.Handle, accessMask uint32, openAsSelf bool, token *windows.Token) (err error) {
+	var _p0 uint32
+	if openAsSelf {
+		_p0 = 1
+	} else {
+		_p0 = 0
+	}
+	r1, _, e1 := syscall.Syscall6(procOpenThreadToken.Addr(), 4, uintptr(thread), uintptr(accessMask), uintptr(_p0), uintptr(unsafe.Pointer(token)), 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func getCurrentThread() (h syscall.Handle) {
+	r0, _, _ := syscall.Syscall(procGetCurrentThread.Addr(), 0, 0, 0, 0)
+	h = syscall.Handle(r0)
+	return
+}
+
+func lookupPrivilegeValue(systemName string, name string, luid *uint64) (err error) {
+	var _p0 *uint16
+	_p0, err = syscall.UTF16PtrFromString(systemName)
+	if err != nil {
+		return
+	}
+	var _p1 *uint16
+	_p1, err = syscall.UTF16PtrFromString(name)
+	if err != nil {
+		return
+	}
+	return _lookupPrivilegeValue(_p0, _p1, luid)
+}
+
+func _lookupPrivilegeValue(systemName *uint16, name *uint16, luid *uint64) (err error) {
+	r1, _, e1 := syscall.Syscall(procLookupPrivilegeValueW.Addr(), 3, uintptr(unsafe.Pointer(systemName)), uintptr(unsafe.Pointer(name)), uintptr(unsafe.Pointer(luid)))
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func lookupPrivilegeName(systemName string, luid *uint64, buffer *uint16, size *uint32) (err error) {
+	var _p0 *uint16
+	_p0, err = syscall.UTF16PtrFromString(systemName)
+	if err != nil {
+		return
+	}
+	return _lookupPrivilegeName(_p0, luid, buffer, size)
+}
+
+func _lookupPrivilegeName(systemName *uint16, luid *uint64, buffer *uint16, size *uint32) (err error) {
+	r1, _, e1 := syscall.Syscall6(procLookupPrivilegeNameW.Addr(), 4, uintptr(unsafe.Pointer(systemName)), uintptr(unsafe.Pointer(luid)), uintptr(unsafe.Pointer(buffer)), uintptr(unsafe.Pointer(size)), 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func lookupPrivilegeDisplayName(systemName string, name *uint16, buffer *uint16, size *uint32, languageId *uint32) (err error) {
+	var _p0 *uint16
+	_p0, err = syscall.UTF16PtrFromString(systemName)
+	if err != nil {
+		return
+	}
+	return _lookupPrivilegeDisplayName(_p0, name, buffer, size, languageId)
+}
+
+func _lookupPrivilegeDisplayName(systemName *uint16, name *uint16, buffer *uint16, size *uint32, languageId *uint32) (err error) {
+	r1, _, e1 := syscall.Syscall6(procLookupPrivilegeDisplayNameW.Addr(), 5, uintptr(unsafe.Pointer(systemName)), uintptr(unsafe.Pointer(name)), uintptr(unsafe.Pointer(buffer)), uintptr(unsafe.Pointer(size)), uintptr(unsafe.Pointer(languageId)), 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func backupRead(h syscall.Handle, b []byte, bytesRead *uint32, abort bool, processSecurity bool, context *uintptr) (err error) {
+	var _p0 *byte
+	if len(b) > 0 {
+		_p0 = &b[0]
+	}
+	var _p1 uint32
+	if abort {
+		_p1 = 1
+	} else {
+		_p1 = 0
+	}
+	var _p2 uint32
+	if processSecurity {
+		_p2 = 1
+	} else {
+		_p2 = 0
+	}
+	r1, _, e1 := syscall.Syscall9(procBackupRead.Addr(), 7, uintptr(h), uintptr(unsafe.Pointer(_p0)), uintptr(len(b)), uintptr(unsafe.Pointer(bytesRead)), uintptr(_p1), uintptr(_p2), uintptr(unsafe.Pointer(context)), 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func backupWrite(h syscall.Handle, b []byte, bytesWritten *uint32, abort bool, processSecurity bool, context *uintptr) (err error) {
+	var _p0 *byte
+	if len(b) > 0 {
+		_p0 = &b[0]
+	}
+	var _p1 uint32
+	if abort {
+		_p1 = 1
+	} else {
+		_p1 = 0
+	}
+	var _p2 uint32
+	if processSecurity {
+		_p2 = 1
+	} else {
+		_p2 = 0
+	}
+	r1, _, e1 := syscall.Syscall9(procBackupWrite.Addr(), 7, uintptr(h), uintptr(unsafe.Pointer(_p0)), uintptr(len(b)), uintptr(unsafe.Pointer(bytesWritten)), uintptr(_p1), uintptr(_p2), uintptr(unsafe.Pointer(context)), 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func bind(s syscall.Handle, name unsafe.Pointer, namelen int32) (err error) {
+	r1, _, e1 := syscall.Syscall(procbind.Addr(), 3, uintptr(s), uintptr(name), uintptr(namelen))
+	if r1 == socketError {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}

vendor/github.com/Microsoft/hcsshim/.gitignore

@@ -0,0 +1 @@
+*.exe

vendor/github.com/Microsoft/hcsshim/.gometalinter.json

@@ -0,0 +1,17 @@
+{
+    "Vendor": true,
+    "Deadline": "2m",
+    "Sort": [
+        "linter",
+        "severity",
+        "path",
+        "line"
+    ],
+    "Skip": [
+        "internal\\schema2"
+    ],
+    "EnableGC": true,
+    "Enable": [
+        "gofmt"
+    ]
+}

vendor/github.com/Microsoft/hcsshim/LICENSE

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2015 Microsoft
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.