[release-1.11] Bump to release version 1.11.3

This branch is utilized for RHEL releases and therefore should never
ever represent a `-dev` development release.  Bump the version
number to account for the change.

Resolves: RHEL-97092 RHEL-97090

Signed-off-by: Chris Evich <cevich@redhat.com>

.cirrus.yml

@@ -23,10 +23,10 @@ env:
     ####
     #### Cache-image names to test with (double-quotes around names are critical)
     ####
-    FEDORA_NAME: "fedora-36"
+    FEDORA_NAME: "fedora-37"
 
     # Google-cloud VM Images
-    IMAGE_SUFFIX: "c5495735033528320"
+    IMAGE_SUFFIX: "c6300530360713216"
     FEDORA_CACHE_IMAGE_NAME: "fedora-${IMAGE_SUFFIX}"
 
     # Container FQIN's
@@ -74,8 +74,38 @@ doccheck_task:
       "${SKOPEO_PATH}/${SCRIPT_BASE}/runner.sh" build
       "${SKOPEO_PATH}/${SCRIPT_BASE}/runner.sh" doccheck
 
+osx_task:
+    # Don't run for docs-only or multi-arch image builds.
+    # Also don't run on release-branches or their PRs,
+    # since base container-image is not version-constrained.
+    only_if: &not_docs_or_release_branch >-
+        ($CIRRUS_BASE_BRANCH == $CIRRUS_DEFAULT_BRANCH ||
+         $CIRRUS_BRANCH == $CIRRUS_DEFAULT_BRANCH ) &&
+        $CIRRUS_CHANGE_TITLE !=~ '.*CI:DOCS.*' &&
+        $CIRRUS_CRON != 'multiarch'
+    depends_on:
+        - validate
+    macos_instance:
+        image: ghcr.io/cirruslabs/macos-ventura-base:latest
+    setup_script: |
+        export PATH=$GOPATH/bin:$PATH
+        brew update
+        brew install gpgme go go-md2man
+        go install golang.org/x/lint/golint@latest
+    test_script: |
+        export PATH=$GOPATH/bin:$PATH
+        go version
+        go env
+        make validate-local test-unit-local bin/skopeo
+        sudo make install
+        /usr/local/bin/skopeo -v
+
+
 cross_task:
     alias: cross
+    only_if: >-
+        $CIRRUS_CHANGE_TITLE !=~ '.*CI:DOCS.*' &&
+        $CIRRUS_CRON != 'multiarch'
     depends_on:
         - validate
     gce_instance: &standardvm
@@ -95,6 +125,42 @@ cross_task:
         "${GOSRC}/${SCRIPT_BASE}/runner.sh" cross
 
 
+ostree-rs-ext_task:
+    alias: proxy_ostree_ext
+    only_if: *not_docs_or_release_branch
+    # WARNING: This task potentially performs a container image
+    # build (on change) with runtime package installs.  Therefore,
+    # its behavior can be unpredictable and potentially flake-prone.
+    # In case of emergency, uncomment the next statement to bypass.
+    #
+    # skip: $CI == "true"
+    #
+    depends_on:
+        - validate
+    # Ref: https://cirrus-ci.org/guide/docker-builder-vm/#dockerfile-as-a-ci-environment
+    container:
+        # The runtime image will be rebuilt on change
+        dockerfile: contrib/cirrus/ostree_ext.dockerfile
+        docker_arguments:  # required build-args
+            BASE_FQIN: quay.io/coreos-assembler/fcos-buildroot:testing-devel
+            CIRRUS_IMAGE_VERSION: 1
+    env:
+        EXT_REPO_NAME: ostree-rs-ext
+        EXT_REPO_HOME: $CIRRUS_WORKING_DIR/../$EXT_REPO_NAME
+        EXT_REPO: https://github.com/ostreedev/${EXT_REPO_NAME}.git
+    skopeo_build_script:
+        - dnf builddep -y skopeo
+        - make
+        - make install
+    proxy_ostree_ext_build_script:
+        - git clone --depth 1 $EXT_REPO $EXT_REPO_HOME
+        - cd $EXT_REPO_HOME
+        - cargo test --no-run
+    proxy_ostree_ext_test_script:
+        - cd $EXT_REPO_HOME
+        - cargo test -- --nocapture --quiet
+
+
 #####
 ##### NOTE: This task is subtantially duplicated in the containers/image
 ##### repository's `.cirrus.yml`.  Changes made here should be fully merged
@@ -216,7 +282,9 @@ success_task:
     depends_on:
         - validate
         - doccheck
+        - osx
         - cross
+        - proxy_ostree_ext
         - test_skopeo
         - image_build
         - meta

.github/renovate.json5

@@ -0,0 +1,74 @@
+/*
+   Renovate is a service similar to GitHub Dependabot, but with
+   (fantastically) more configuration options.  So many options
+   in fact, if you're new I recommend glossing over this cheat-sheet
+   prior to the official documentation:
+
+   https://www.augmentedmind.de/2021/07/25/renovate-bot-cheat-sheet
+
+   Configuration Update/Change Procedure:
+     1. Make changes
+     2. Manually validate changes (from repo-root):
+
+        podman run -it \
+            -v ./.github/renovate.json5:/usr/src/app/renovate.json5:z \
+            docker.io/renovate/renovate:latest \
+            renovate-config-validator
+     3. Commit.
+
+   Configuration Reference:
+   https://docs.renovatebot.com/configuration-options/
+
+   Monitoring Dashboard:
+   https://app.renovatebot.com/dashboard#github/containers
+
+   Note: The Renovate bot will create/manage it's business on
+         branches named 'renovate/*'.  Otherwise, and by
+         default, the only the copy of this file that matters
+         is the one on the `main` branch.  No other branches
+         will be monitored or touched in any way.
+*/
+
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+
+  /*************************************************
+   ****** Global/general configuration options *****
+   *************************************************/
+
+  // Re-use predefined sets of configuration options to DRY
+  "extends": [
+    // https://github.com/containers/automation/blob/main/renovate/defaults.json5
+    "github>containers/automation//renovate/defaults.json5"
+  ],
+
+  // Permit automatic rebasing when base-branch changes by more than
+  // one commit.
+  "rebaseWhen": "behind-base-branch",
+
+  /*************************************************
+   *** Repository-specific configuration options ***
+   *************************************************/
+
+  // Don't leave dep. update. PRs "hanging", assign them to people.
+  "assignees": ["containers/image-maintainers"],  // same for skopeo
+
+  /*************************************************
+   ***** Golang-specific configuration options *****
+   *************************************************/
+
+  "golang": {
+    // N/B: LAST MATCHING RULE WINS
+    // https://docs.renovatebot.com/configuration-options/#packagerules
+    "packageRules": [
+      // Package version retraction (https://go.dev/ref/mod#go-mod-file-retract)
+      // is broken in Renovate
+      // ref: https://github.com/renovatebot/renovate/issues/13012
+      {
+        "matchPackageNames": ["github.com/containers/common"],
+        // Both v1.0.0 and v1.0.1 should be ignored.
+        "allowedVersions": "!/v((1.0.0)|(1.0.1))$/"
+      },
+    ],
+  },
+}

.github/workflows/check_cirrus_cron.yml

@@ -3,103 +3,18 @@
 # See also:
 # https://github.com/containers/podman/blob/main/.github/workflows/check_cirrus_cron.yml
 
-# Format Ref: https://docs.github.com/en/free-pro-team@latest/actions/reference/workflow-syntax-for-github-actions
-
-# Required to un-FUBAR default ${{github.workflow}} value
-name: check_cirrus_cron
-
 on:
-    # Note: This only applies to the default branch.
-    schedule:
-        # N/B: This should correspond to a period slightly after
-        # the last job finishes running.  See job defs. at:
-        # https://cirrus-ci.com/settings/repository/6706677464432640
-        - cron:  '59 23 * * 1-5'
-    # Debug: Allow triggering job manually in github-actions WebUI
-    workflow_dispatch: {}
-
-permissions:
-    contents: read
-
-env:
-    # Debug-mode can reveal secrets, only enable by a secret value.
-    # Ref: https://help.github.com/en/actions/configuring-and-managing-workflows/managing-a-workflow-run#enabling-step-debug-logging
-    ACTIONS_STEP_DEBUG: '${{ secrets.ACTIONS_STEP_DEBUG }}'
-    # CSV listing of e-mail addresses for delivery failure or error notices
-    RCPTCSV: rh.container.bot@gmail.com,podman-monitor@lists.podman.io
-    # Filename for table of cron-name to build-id data
-    # (must be in $GITHUB_WORKSPACE/artifacts/)
-    NAME_ID_FILEPATH: './artifacts/name_id.txt'
+  # Note: This only applies to the default branch.
+  schedule:
+    # N/B: This should correspond to a period slightly after
+    # the last job finishes running.  See job defs. at:
+    # https://cirrus-ci.com/settings/repository/6706677464432640
+    - cron:  '03 03 * * 1-5'
+  # Debug: Allow triggering job manually in github-actions WebUI
+  workflow_dispatch: {}
 
 jobs:
-    cron_failures:
-        runs-on: ubuntu-latest
-        steps:
-            - uses: actions/checkout@629c2de402a417ea7690ca6ce3f33229e27606a5 # v2
-              with:
-                  persist-credentials: false
-
-            # Avoid duplicating cron_failures.sh in skopeo repo.
-            - uses: actions/checkout@629c2de402a417ea7690ca6ce3f33229e27606a5 # v2
-              with:
-                  repository: containers/podman
-                  path: '_podman'
-                  persist-credentials: false
-
-            - name: Get failed cron names and Build IDs
-              id: cron
-              run: './_podman/.github/actions/${{ github.workflow }}/${{ github.job }}.sh'
-
-            - if: steps.cron.outputs.failures > 0
-              shell: bash
-              # Must be inline, since context expressions are used.
-              # Ref: https://docs.github.com/en/free-pro-team@latest/actions/reference/context-and-expression-syntax-for-github-actions
-              run: |
-                set -eo pipefail
-                (
-                echo "Detected one or more Cirrus-CI cron-triggered jobs have failed recently:"
-                echo ""
-
-                while read -r NAME BID; do
-                    echo "Cron build '$NAME' Failed: https://cirrus-ci.com/build/$BID"
-                done < "$NAME_ID_FILEPATH"
-
-                echo ""
-                echo "# Source: ${{ github.workflow }} workflow on ${{ github.repository }}."
-                # Separate content from sendgrid.com automatic footer.
-                echo ""
-                echo ""
-                ) > ./artifacts/email_body.txt
-
-            - if: steps.cron.outputs.failures > 0
-              name: Send failure notification e-mail
-              # Ref: https://github.com/dawidd6/action-send-mail
-              uses: dawidd6/action-send-mail@a80d851dc950256421f1d1d735a2dc1ef314ac8f # v2.2.2
-              with:
-                server_address: ${{secrets.ACTION_MAIL_SERVER}}
-                server_port: 465
-                username: ${{secrets.ACTION_MAIL_USERNAME}}
-                password: ${{secrets.ACTION_MAIL_PASSWORD}}
-                subject: Cirrus-CI cron build failures on ${{github.repository}}
-                to: ${{env.RCPTCSV}}
-                from: ${{secrets.ACTION_MAIL_SENDER}}
-                body: file://./artifacts/email_body.txt
-
-            - if: always()
-              uses: actions/upload-artifact@82c141cc518b40d92cc801eee768e7aafc9c2fa2 # v2
-              with:
-                  name: ${{ github.job }}_artifacts
-                  path: artifacts/*
-
-            - if: failure()
-              name: Send error notification e-mail
-              uses: dawidd6/action-send-mail@a80d851dc950256421f1d1d735a2dc1ef314ac8f # v2.2.2
-              with:
-                server_address: ${{secrets.ACTION_MAIL_SERVER}}
-                server_port: 465
-                username: ${{secrets.ACTION_MAIL_USERNAME}}
-                password: ${{secrets.ACTION_MAIL_PASSWORD}}
-                subject: Github workflow error on ${{github.repository}}
-                to: ${{env.RCPTCSV}}
-                from: ${{secrets.ACTION_MAIL_SENDER}}
-                body: "Job failed: https://github.com/${{github.repository}}/actions/runs/${{github.run_id}}"
+  # Ref: https://docs.github.com/en/actions/using-workflows/reusing-workflows
+  call_cron_failures:
+    uses: containers/podman/.github/workflows/check_cirrus_cron.yml@main
+    secrets: inherit

.github/workflows/rerun_cirrus_cron.yml

@@ -0,0 +1,19 @@
+---
+
+# See also: https://github.com/containers/podman/blob/main/.github/workflows/rerun_cirrus_cron.yml
+
+on:
+  # Note: This only applies to the default branch.
+  schedule:
+    # N/B: This should correspond to a period slightly after
+    # the last job finishes running.  See job defs. at:
+    # https://cirrus-ci.com/settings/repository/6706677464432640
+    - cron:  '01 01 * * 1-5'
+  # Debug: Allow triggering job manually in github-actions WebUI
+  workflow_dispatch: {}
+
+jobs:
+  # Ref: https://docs.github.com/en/actions/using-workflows/reusing-workflows
+  call_cron_rerun:
+    uses: containers/podman/.github/workflows/rerun_cirrus_cron.yml@main
+    secrets: inherit

.github/workflows/stale.yml

@@ -17,7 +17,7 @@ jobs:
       pull-requests: write  # for actions/stale to close stale PRs
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/stale@98ed4cb500039dbcccf4bd9bedada4d0187f2757 # v3
+    - uses: actions/stale@v7
       with:
         repo-token: ${{ secrets.GITHUB_TOKEN }}
         stale-issue-message: 'A friendly reminder that this issue had no activity for 30 days.'

Makefile

@@ -28,10 +28,15 @@ ifeq ($(GOBIN),)
 GOBIN := $(GOPATH)/bin
 endif
 
-# Multiple scripts are sensitive to this value, make sure it's exported/available
-# N/B: Need to use 'command -v' here for compatibility with MacOS.
-export CONTAINER_RUNTIME ?= $(if $(shell command -v podman),podman,docker)
-GOMD2MAN ?= $(if $(shell command -v go-md2man),go-md2man,$(GOBIN)/go-md2man)
+# Scripts may also use CONTAINER_RUNTIME, so we need to export it.
+# Note possibly non-obvious aspects of this:
+# - We need to use 'command -v' here, not 'which', for compatibility with MacOS.
+# - GNU Make 4.2.1 (included in Ubuntu 20.04) incorrectly tries to avoid invoking
+#   a shell, and fails because there is no /usr/bin/command. The trailing ';' in
+#   $(shell … ;) defeats that heuristic (recommended in
+#   https://savannah.gnu.org/bugs/index.php?57625 ).
+export CONTAINER_RUNTIME ?= $(if $(shell command -v podman ;),podman,docker)
+GOMD2MAN ?= $(if $(shell command -v go-md2man ;),go-md2man,$(GOBIN)/go-md2man)
 
 # Go module support: set `-mod=vendor` to use the vendored sources.
 # See also hack/make.sh.
@@ -50,8 +55,6 @@ ifeq ($(GOOS), linux)
   endif
 endif
 
-GIT_BRANCH := $(shell git rev-parse --abbrev-ref HEAD 2>/dev/null)
-
 # If $TESTFLAGS is set, it is passed as extra arguments to 'go test'.
 # You can increase test output verbosity with the option '-test.vv'.
 # You can select certain tests to run, with `-test.run <regex>` for example:
@@ -87,7 +90,7 @@ endif
 CONTAINER_GOSRC = /src/github.com/containers/skopeo
 CONTAINER_RUN ?= $(CONTAINER_CMD) --security-opt label=disable -v $(CURDIR):$(CONTAINER_GOSRC) -w $(CONTAINER_GOSRC) $(SKOPEO_CIDEV_CONTAINER_FQIN)
 
-GIT_COMMIT := $(shell git rev-parse HEAD 2> /dev/null || true)
+GIT_COMMIT := $(shell GIT_CEILING_DIRECTORIES=$$(cd ..; pwd) git rev-parse HEAD 2> /dev/null || true)
 
 EXTRA_LDFLAGS ?=
 SKOPEO_LDFLAGS := -ldflags '-X main.gitCommit=${GIT_COMMIT} $(EXTRA_LDFLAGS)'
@@ -194,7 +197,11 @@ shell:
 check: validate test-unit test-integration test-system
 
 test-integration:
-	$(CONTAINER_RUN) $(MAKE) test-integration-local
+# This is intended to be equal to $(CONTAINER_RUN), but with --cap-add=cap_mknod.
+# --cap-add=cap_mknod is important to allow skopeo to use containers-storage: directly as it exists in the callers’ environment, without
+# creating a nested user namespace (which requires /etc/subuid and /etc/subgid to be set up)
+	$(CONTAINER_CMD) --security-opt label=disable --cap-add=cap_mknod -v $(CURDIR):$(CONTAINER_GOSRC) -w $(CONTAINER_GOSRC) $(SKOPEO_CIDEV_CONTAINER_FQIN) \
+		$(MAKE) test-integration-local
 
 
 # Intended for CI, assumed to be running in quay.io/libpod/skopeo_cidev container.
@@ -202,7 +209,6 @@ test-integration-local: bin/skopeo
 	hack/make.sh test-integration
 
 # complicated set of options needed to run podman-in-podman
-# TODO: The $(RM) command will likely fail w/o `podman unshare`
 test-system:
 	DTEMP=$(shell mktemp -d --tmpdir=/var/tmp podman-tmp.XXXXXX); \
 	$(CONTAINER_CMD) --privileged \
@@ -211,7 +217,7 @@ test-system:
 		"$(SKOPEO_CIDEV_CONTAINER_FQIN)" \
 			$(MAKE) test-system-local; \
 	rc=$$?; \
-	-$(RM) -rf $$DTEMP; \
+	$(CONTAINER_RUNTIME) unshare rm -rf $$DTEMP; # This probably doesn't work with Docker, oh well, better than nothing... \
 	exit $$rc
 
 # Intended for CI, assumed to already be running in quay.io/libpod/skopeo_cidev container.

README.md

@@ -1,7 +1,8 @@
-skopeo [![Build Status](https://travis-ci.org/containers/skopeo.svg?branch=master)](https://travis-ci.org/containers/skopeo)
+<!--- skopeo [![Build Status](https://travis-ci.org/containers/skopeo.svg?branch=main)](https://travis-ci.org/containers/skopeo)
 =
+--->
 
-<img src="https://cdn.rawgit.com/containers/skopeo/master/docs/skopeo.svg" width="250">
+<img src="https://cdn.rawgit.com/containers/skopeo/main/docs/skopeo.svg" width="250">
 
 ----
 
@@ -56,29 +57,37 @@ Examples:
 $ skopeo inspect docker://registry.fedoraproject.org/fedora:latest
 {
     "Name": "registry.fedoraproject.org/fedora",
-    "Digest": "sha256:655721ff613ee766a4126cb5e0d5ae81598e1b0c3bcf7017c36c4d72cb092fe9",
+    "Digest": "sha256:0f65bee641e821f8118acafb44c2f8fe30c2fc6b9a2b3729c0660376391aa117",
     "RepoTags": [
-        "24",
-        "25",
-        "26-modular",
-	...
+        "34-aarch64",
+        "34",
+        "latest",
+        ...
     ],
-    "Created": "2020-04-29T06:48:16Z",
+    "Created": "2022-11-24T13:54:18Z",
     "DockerVersion": "1.10.1",
     "Labels": {
         "license": "MIT",
         "name": "fedora",
         "vendor": "Fedora Project",
-        "version": "32"
+        "version": "37"
     },
     "Architecture": "amd64",
     "Os": "linux",
     "Layers": [
-        "sha256:3088721d7dbf674fc0be64cd3cf00c25aab921cacf35fa0e7b1578500a3e1653"
+        "sha256:2a0fc6bf62e155737f0ace6142ee686f3c471c1aab4241dc3128904db46288f0"
+    ],
+    "LayersData": [
+        {
+            "MIMEType": "application/vnd.docker.image.rootfs.diff.tar.gzip",
+            "Digest": "sha256:2a0fc6bf62e155737f0ace6142ee686f3c471c1aab4241dc3128904db46288f0",
+            "Size": 71355009,
+            "Annotations": null
+        }
     ],
     "Env": [
-        "DISTTAG=f32container",
-        "FGC=f32",
+        "DISTTAG=f37container",
+        "FGC=f37",
         "container=oci"
     ]
 }
@@ -200,6 +209,7 @@ Please read the [contribution guide](CONTRIBUTING.md) if you want to collaborate
 | -------------------------------------------------- | ---------------------------------------------------------------------------------------------|
 | [skopeo-copy(1)](/docs/skopeo-copy.1.md)           | Copy an image (manifest, filesystem layers, signatures) from one location to another.        |
 | [skopeo-delete(1)](/docs/skopeo-delete.1.md)       | Mark the image-name for later deletion by the registry's garbage collector.                                                                |
+| [skopeo-generate-sigstore-key(1)](/docs/skopeo-generate-sigstore-key.1.md)    | Generate a sigstore public/private key pair.  |
 | [skopeo-inspect(1)](/docs/skopeo-inspect.1.md)     | Return  low-level  information about image-name in a registry.                                |
 | [skopeo-list-tags(1)](/docs/skopeo-list-tags.1.md) | Return a list of tags for the transport-specific image repository.                               |
 | [skopeo-login(1)](/docs/skopeo-login.1.md)         | Login to a container registry.                                                               |
@@ -207,7 +217,7 @@ Please read the [contribution guide](CONTRIBUTING.md) if you want to collaborate
 | [skopeo-manifest-digest(1)](/docs/skopeo-manifest-digest.1.md)    | Compute a manifest digest for a manifest-file and write it to standard output.   |
 | [skopeo-standalone-sign(1)](/docs/skopeo-standalone-sign.1.md)    | Debugging tool - Publish and sign an image in one step.                                                         |
 | [skopeo-standalone-verify(1)](/docs/skopeo-standalone-verify.1.md)| Verify an image signature.                                                    |
-| [skopeo-sync(1)](/docs/skopeo-sync.1.md)           | Synchronize images between container registries and local directories.                       |
+| [skopeo-sync(1)](/docs/skopeo-sync.1.md)           | Synchronize images between registry repositories and local directories.                      |
 
 License
 -

cmd/skopeo/copy.go

@@ -13,6 +13,8 @@ import (
 	"github.com/containers/image/v5/docker/reference"
 	"github.com/containers/image/v5/manifest"
 	"github.com/containers/image/v5/pkg/cli"
+	"github.com/containers/image/v5/pkg/cli/sigstore"
+	"github.com/containers/image/v5/signature/signer"
 	"github.com/containers/image/v5/transports"
 	"github.com/containers/image/v5/transports/alltransports"
 	encconfig "github.com/containers/ocicrypt/config"
@@ -29,6 +31,7 @@ type copyOptions struct {
 	additionalTags           []string                  // For docker-archive: destinations, in addition to the name:tag specified as destination, also add these
 	removeSignatures         bool                      // Do not copy signatures from the source image
 	signByFingerprint        string                    // Sign the image using a GPG key with the specified fingerprint
+	signBySigstoreParamFile  string                    // Sign the image using a sigstore signature per configuration in a param file
 	signBySigstorePrivateKey string                    // Sign the image using a sigstore private key
 	signPassphraseFile       string                    // Path pointing to a passphrase file when signing (for either signature format, but only one of them)
 	signIdentity             string                    // Identity of the signed image, must be a fully specified docker reference
@@ -83,6 +86,7 @@ See skopeo(1) section "IMAGE NAMES" for the expected format
 	flags.BoolVar(&opts.preserveDigests, "preserve-digests", false, "Preserve digests of images and lists")
 	flags.BoolVar(&opts.removeSignatures, "remove-signatures", false, "Do not copy signatures from SOURCE-IMAGE")
 	flags.StringVar(&opts.signByFingerprint, "sign-by", "", "Sign the image using a GPG key with the specified `FINGERPRINT`")
+	flags.StringVar(&opts.signBySigstoreParamFile, "sign-by-sigstore", "", "Sign the image using a sigstore parameter file at `PATH`")
 	flags.StringVar(&opts.signBySigstorePrivateKey, "sign-by-sigstore-private-key", "", "Sign the image using a sigstore private key at `PATH`")
 	flags.StringVar(&opts.signPassphraseFile, "sign-passphrase-file", "", "Read a passphrase for signing an image from `PATH`")
 	flags.StringVar(&opts.signIdentity, "sign-identity", "", "Identity of signed image, must be a fully specified docker reference. Defaults to the target docker reference.")
@@ -252,6 +256,22 @@ func (opts *copyOptions) run(args []string, stdout io.Writer) (retErr error) {
 		passphrase = p
 	} // opts.signByFingerprint triggers a GPG-agent passphrase prompt, possibly using a more secure channel, so we usually shouldn’t prompt ourselves if no passphrase was explicitly provided.
 
+	var signers []*signer.Signer
+	if opts.signBySigstoreParamFile != "" {
+		signer, err := sigstore.NewSignerFromParameterFile(opts.signBySigstoreParamFile, &sigstore.Options{
+			PrivateKeyPassphrasePrompt: func(keyFile string) (string, error) {
+				return promptForPassphrase(keyFile, os.Stdin, os.Stdout)
+			},
+			Stdin:  os.Stdin,
+			Stdout: stdout,
+		})
+		if err != nil {
+			return fmt.Errorf("Error using --sign-by-sigstore: %w", err)
+		}
+		defer signer.Close()
+		signers = append(signers, signer)
+	}
+
 	var signIdentity reference.Named = nil
 	if opts.signIdentity != "" {
 		signIdentity, err = reference.ParseNamed(opts.signIdentity)
@@ -260,9 +280,12 @@ func (opts *copyOptions) run(args []string, stdout io.Writer) (retErr error) {
 		}
 	}
 
+	opts.destImage.warnAboutIneffectiveOptions(destRef.Transport())
+
 	return retry.IfNecessary(ctx, func() error {
 		manifestBytes, err := copy.Image(ctx, policyContext, destRef, srcRef, &copy.Options{
 			RemoveSignatures:                 opts.removeSignatures,
+			Signers:                          signers,
 			SignBy:                           opts.signByFingerprint,
 			SignPassphrase:                   passphrase,
 			SignBySigstorePrivateKeyFile:     opts.signBySigstorePrivateKey,

cmd/skopeo/generate_sigstore_key.go

@@ -0,0 +1,90 @@
+package main
+
+import (
+	"errors"
+	"fmt"
+	"io"
+	"io/fs"
+	"os"
+
+	"github.com/containers/image/v5/pkg/cli"
+	"github.com/containers/image/v5/signature/sigstore"
+	"github.com/spf13/cobra"
+)
+
+type generateSigstoreKeyOptions struct {
+	outputPrefix   string
+	passphraseFile string
+}
+
+func generateSigstoreKeyCmd() *cobra.Command {
+	var opts generateSigstoreKeyOptions
+	cmd := &cobra.Command{
+		Use:     "generate-sigstore-key [command options] --output-prefix PREFIX",
+		Short:   "Generate a sigstore public/private key pair",
+		RunE:    commandAction(opts.run),
+		Example: "skopeo generate-sigstore-key --output-prefix my-key",
+	}
+	adjustUsage(cmd)
+	flags := cmd.Flags()
+	flags.StringVar(&opts.outputPrefix, "output-prefix", "", "Write the keys to `PREFIX`.pub and `PREFIX`.private")
+	flags.StringVar(&opts.passphraseFile, "passphrase-file", "", "Read a passphrase for the private key from `PATH`")
+	return cmd
+}
+
+// ensurePathDoesNotExist verifies that path does not refer to an existing file,
+// and returns an error if so.
+func ensurePathDoesNotExist(path string) error {
+	switch _, err := os.Stat(path); {
+	case err == nil:
+		return fmt.Errorf("Refusing to overwrite existing %q", path)
+	case errors.Is(err, fs.ErrNotExist):
+		return nil
+	default:
+		return fmt.Errorf("Error checking existence of %q: %w", path, err)
+	}
+}
+
+func (opts *generateSigstoreKeyOptions) run(args []string, stdout io.Writer) error {
+	if len(args) != 0 || opts.outputPrefix == "" {
+		return errors.New("Usage: generate-sigstore-key --output-prefix PREFIX")
+	}
+
+	pubKeyPath := opts.outputPrefix + ".pub"
+	privateKeyPath := opts.outputPrefix + ".private"
+	if err := ensurePathDoesNotExist(pubKeyPath); err != nil {
+		return err
+	}
+	if err := ensurePathDoesNotExist(privateKeyPath); err != nil {
+		return err
+	}
+
+	var passphrase string
+	if opts.passphraseFile != "" {
+		p, err := cli.ReadPassphraseFile(opts.passphraseFile)
+		if err != nil {
+			return err
+		}
+		passphrase = p
+	} else {
+		p, err := promptForPassphrase(privateKeyPath, os.Stdin, os.Stdout)
+		if err != nil {
+			return err
+		}
+		passphrase = p
+	}
+
+	keys, err := sigstore.GenerateKeyPair([]byte(passphrase))
+	if err != nil {
+		return fmt.Errorf("Error generating key pair: %w", err)
+	}
+
+	if err := os.WriteFile(privateKeyPath, keys.PrivateKey, 0600); err != nil {
+		return fmt.Errorf("Error writing private key to %q: %w", privateKeyPath, err)
+	}
+	if err := os.WriteFile(pubKeyPath, keys.PublicKey, 0644); err != nil {
+		return fmt.Errorf("Error writing private key to %q: %w", pubKeyPath, err)
+	}
+	fmt.Fprintf(stdout, "Key written to %q and %q", privateKeyPath, pubKeyPath)
+	return nil
+}

cmd/skopeo/generate_sigstore_key_test.go

@@ -0,0 +1,79 @@
+package main
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestGenerateSigstoreKey(t *testing.T) {
+	// Invalid command-line arguments
+	for _, args := range [][]string{
+		{},
+		{"--output-prefix", "foo", "a1"},
+	} {
+		out, err := runSkopeo(append([]string{"generate-sigstore-key"}, args...)...)
+		assertTestFailed(t, out, err, "Usage")
+	}
+
+	// One of the destination files already exists
+	outputSuffixes := []string{".pub", ".private"}
+	for _, suffix := range outputSuffixes {
+		dir := t.TempDir()
+		prefix := filepath.Join(dir, "prefix")
+		err := os.WriteFile(prefix+suffix, []byte{}, 0600)
+		require.NoError(t, err)
+		out, err := runSkopeo("generate-sigstore-key",
+			"--output-prefix", prefix, "--passphrase-file", "/dev/null",
+		)
+		assertTestFailed(t, out, err, "Refusing to overwrite")
+	}
+
+	// One of the destinations is inaccessible (simulate by a symlink that tries to
+	// traverse a non-directory)
+	for _, suffix := range outputSuffixes {
+		dir := t.TempDir()
+		nonDirectory := filepath.Join(dir, "nondirectory")
+		err := os.WriteFile(nonDirectory, []byte{}, 0600)
+		require.NoError(t, err)
+		prefix := filepath.Join(dir, "prefix")
+		err = os.Symlink(filepath.Join(nonDirectory, "unaccessible"), prefix+suffix)
+		require.NoError(t, err)
+		out, err := runSkopeo("generate-sigstore-key",
+			"--output-prefix", prefix, "--passphrase-file", "/dev/null",
+		)
+		assertTestFailed(t, out, err, prefix+suffix) // + an OS-specific error message
+	}
+	destDir := t.TempDir()
+	// Error reading passphrase
+	out, err := runSkopeo("generate-sigstore-key",
+		"--output-prefix", filepath.Join(destDir, "prefix"),
+		"--passphrase-file", filepath.Join(destDir, "this-does-not-exist"),
+	)
+	assertTestFailed(t, out, err, "this-does-not-exist")
+
+	// (The interactive passphrase prompting is not yet tested)
+
+	// Error writing outputs is untested: when unit tests run as root, we can’t use permissions on a directory to cause write failures,
+	// with the --output-prefix mechanism, and refusing to even start writing to pre-exisiting files, directories are the only mechanism
+	// we have to trigger a write failure.
+
+	// Success
+	// Just a smoke-test, useability of the keys is tested in the generate implementation.
+	dir := t.TempDir()
+	prefix := filepath.Join(dir, "prefix")
+	passphraseFile := filepath.Join(dir, "passphrase")
+	err = os.WriteFile(passphraseFile, []byte("some passphrase"), 0600)
+	require.NoError(t, err)
+	out, err = runSkopeo("generate-sigstore-key",
+		"--output-prefix", prefix, "--passphrase-file", passphraseFile,
+	)
+	assert.NoError(t, err)
+	for _, suffix := range outputSuffixes {
+		assert.Contains(t, out, prefix+suffix)
+	}
+
+}

cmd/skopeo/inspect.go

@@ -5,7 +5,6 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"os"
 	"strings"
 	"text/tabwriter"
 	"text/template"
@@ -18,6 +17,7 @@ import (
 	"github.com/containers/image/v5/transports"
 	"github.com/containers/image/v5/types"
 	"github.com/containers/skopeo/cmd/skopeo/inspect"
+	"github.com/docker/distribution/registry/api/errcode"
 	v1 "github.com/opencontainers/image-spec/specs-go/v1"
 	"github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
@@ -160,7 +160,7 @@ func (opts *inspectOptions) run(args []string, stdout io.Writer) (retErr error)
 		} else {
 			row := "{{range . }}" + report.NormalizeFormat(opts.format) + "{{end}}"
 			data = append(data, config)
-			err = printTmpl(row, data)
+			err = printTmpl(stdout, row, data)
 		}
 		if err != nil {
 			return fmt.Errorf("Error writing OCI-formatted configuration data to standard output: %w", err)
@@ -186,6 +186,7 @@ func (opts *inspectOptions) run(args []string, stdout io.Writer) (retErr error)
 		Architecture:  imgInspect.Architecture,
 		Os:            imgInspect.Os,
 		Layers:        imgInspect.Layers,
+		LayersData:    imgInspect.LayersData,
 		Env:           imgInspect.Env,
 	}
 	outputData.Digest, err = manifest.Digest(rawManifest)
@@ -202,12 +203,26 @@ func (opts *inspectOptions) run(args []string, stdout io.Writer) (retErr error)
 		}
 		outputData.RepoTags, err = docker.GetRepositoryTags(ctx, sys, img.Reference())
 		if err != nil {
-			// 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.
-			// 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") {
+			// Some registries may decide to block the "list all tags" endpoint;
+			// gracefully allow the inspect to continue in this case:
+			fatalFailure := true
+			// - AWS ECR rejects it if the "ecr:ListImages" action is not allowed.
+			//   https://github.com/containers/skopeo/issues/726
+			var ec errcode.ErrorCoder
+			if ok := errors.As(err, &ec); ok && ec.ErrorCode() == errcode.ErrorCodeDenied {
+				fatalFailure = false
+			}
+			// - public.ecr.aws does not implement the endpoint at all, and fails with 404:
+			//   https://github.com/containers/skopeo/issues/1230
+			//   This is actually "code":"NOT_FOUND", and the parser doesn’t preserve that.
+			//   So, also check the error text.
+			if ok := errors.As(err, &ec); ok && ec.ErrorCode() == errcode.ErrorCodeUnknown {
+				var e errcode.Error
+				if ok := errors.As(err, &e); ok && e.Code == errcode.ErrorCodeUnknown && e.Message == "404 page not found" {
+					fatalFailure = false
+				}
+			}
+			if fatalFailure {
 				return fmt.Errorf("Error determining repository tags: %w", err)
 			}
 			logrus.Warnf("Registry disallows tag list retrieval; skipping")
@@ -222,14 +237,14 @@ func (opts *inspectOptions) run(args []string, stdout io.Writer) (retErr error)
 	}
 	row := "{{range . }}" + report.NormalizeFormat(opts.format) + "{{end}}"
 	data = append(data, outputData)
-	return printTmpl(row, data)
+	return printTmpl(stdout, row, data)
 }
 
-func printTmpl(row string, data []interface{}) error {
+func printTmpl(stdout io.Writer, row string, data []interface{}) error {
 	t, err := template.New("skopeo inspect").Parse(row)
 	if err != nil {
 		return err
 	}
-	w := tabwriter.NewWriter(os.Stdout, 8, 2, 2, ' ', 0)
+	w := tabwriter.NewWriter(stdout, 8, 2, 2, ' ', 0)
 	return t.Execute(w, data)
 }

cmd/skopeo/inspect/output.go

@@ -3,6 +3,7 @@ package inspect
 import (
 	"time"
 
+	"github.com/containers/image/v5/types"
 	digest "github.com/opencontainers/go-digest"
 )
 
@@ -19,5 +20,6 @@ type Output struct {
 	Architecture  string
 	Os            string
 	Layers        []string
+	LayersData    []types.ImageInspectLayer
 	Env           []string
 }

cmd/skopeo/main.go

@@ -98,6 +98,7 @@ func createApp() (*cobra.Command, *globalOptions) {
 	rootCommand.AddCommand(
 		copyCmd(&opts),
 		deleteCmd(&opts),
+		generateSigstoreKeyCmd(),
 		inspectCmd(&opts),
 		layersCmd(&opts),
 		loginCmd(&opts),

cmd/skopeo/proxy.go

@@ -73,11 +73,16 @@ import (
 
 	"github.com/containers/image/v5/image"
 	"github.com/containers/image/v5/manifest"
+	ocilayout "github.com/containers/image/v5/oci/layout"
 	"github.com/containers/image/v5/pkg/blobinfocache"
+	"github.com/containers/image/v5/transports"
 	"github.com/containers/image/v5/transports/alltransports"
 	"github.com/containers/image/v5/types"
+	dockerdistributionerrcode "github.com/docker/distribution/registry/api/errcode"
+	dockerdistributionapi "github.com/docker/distribution/registry/api/v2"
 	"github.com/opencontainers/go-digest"
 	imgspecv1 "github.com/opencontainers/image-spec/specs-go/v1"
+	"github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
 )
 
@@ -88,7 +93,9 @@ import (
 // 0.2.1: Initial version
 // 0.2.2: Added support for fetching image configuration as OCI
 // 0.2.3: Added GetFullConfig
-const protocolVersion = "0.2.3"
+// 0.2.4: Added OpenImageOptional
+// 0.2.5: Added LayerInfoJSON
+const protocolVersion = "0.2.5"
 
 // maxMsgSize is the current limit on a packet size.
 // Note that all non-metadata (i.e. payload data) is sent over a pipe.
@@ -100,6 +107,9 @@ const maxMsgSize = 32 * 1024
 // integers are above this.
 const maxJSONFloat = float64(uint64(1)<<53 - 1)
 
+// sentinelImageID represents "image not found" on the wire
+const sentinelImageID = 0
+
 // request is the JSON serialization of a function call
 type request struct {
 	// Method is the name of the function
@@ -166,6 +176,14 @@ type proxyHandler struct {
 	activePipes map[uint32]*activePipe
 }
 
+// convertedLayerInfo is the reduced form of the OCI type BlobInfo
+// Used in the return value of GetLayerInfo
+type convertedLayerInfo struct {
+	Digest    digest.Digest `json:"digest"`
+	Size      int64         `json:"size"`
+	MediaType string        `json:"media_type"`
+}
+
 // Initialize performs one-time initialization, and returns the protocol version
 func (h *proxyHandler) Initialize(args []interface{}) (replyBuf, error) {
 	h.lock.Lock()
@@ -197,6 +215,29 @@ func (h *proxyHandler) Initialize(args []interface{}) (replyBuf, error) {
 // OpenImage accepts a string image reference i.e. TRANSPORT:REF - like `skopeo copy`.
 // The return value is an opaque integer handle.
 func (h *proxyHandler) OpenImage(args []interface{}) (replyBuf, error) {
+	return h.openImageImpl(args, false)
+}
+
+// isDockerManifestUnknownError is a copy of code from containers/image,
+// please update there first.
+func isDockerManifestUnknownError(err error) bool {
+	var ec dockerdistributionerrcode.ErrorCoder
+	if !errors.As(err, &ec) {
+		return false
+	}
+	return ec.ErrorCode() == dockerdistributionapi.ErrorCodeManifestUnknown
+}
+
+// isNotFoundImageError heuristically attempts to determine whether an error
+// is saying the remote source couldn't find the image (as opposed to an
+// authentication error, an I/O error etc.)
+// TODO drive this into containers/image properly
+func isNotFoundImageError(err error) bool {
+	return isDockerManifestUnknownError(err) ||
+		errors.Is(err, ocilayout.ImageNotFoundError{})
+}
+
+func (h *proxyHandler) openImageImpl(args []interface{}, allowNotFound bool) (replyBuf, error) {
 	h.lock.Lock()
 	defer h.lock.Unlock()
 	var ret replyBuf
@@ -218,9 +259,15 @@ func (h *proxyHandler) OpenImage(args []interface{}) (replyBuf, error) {
 	}
 	imgsrc, err := imgRef.NewImageSource(context.Background(), h.sysctx)
 	if err != nil {
+		if allowNotFound && isNotFoundImageError(err) {
+			ret.value = sentinelImageID
+			return ret, nil
+		}
 		return ret, err
 	}
 
+	// Note that we never return zero as an imageid; this code doesn't yet
+	// handle overflow though.
 	h.imageSerial++
 	openimg := &openImage{
 		id:  h.imageSerial,
@@ -232,6 +279,13 @@ func (h *proxyHandler) OpenImage(args []interface{}) (replyBuf, error) {
 	return ret, nil
 }
 
+// OpenImage accepts a string image reference i.e. TRANSPORT:REF - like `skopeo copy`.
+// The return value is an opaque integer handle.  If the image does not exist, zero
+// is returned.
+func (h *proxyHandler) OpenImageOptional(args []interface{}) (replyBuf, error) {
+	return h.openImageImpl(args, true)
+}
+
 func (h *proxyHandler) CloseImage(args []interface{}) (replyBuf, error) {
 	h.lock.Lock()
 	defer h.lock.Unlock()
@@ -278,6 +332,9 @@ func (h *proxyHandler) parseImageFromID(v interface{}) (*openImage, error) {
 	if err != nil {
 		return nil, err
 	}
+	if imgid == sentinelImageID {
+		return nil, fmt.Errorf("Invalid imageid value of zero")
+	}
 	imgref, ok := h.images[imgid]
 	if !ok {
 		return nil, fmt.Errorf("no image %v", imgid)
@@ -542,10 +599,12 @@ func (h *proxyHandler) GetBlob(args []interface{}) (replyBuf, error) {
 
 	piper, f, err := h.allocPipe()
 	if err != nil {
+		blobr.Close()
 		return ret, err
 	}
 	go func() {
 		// Signal completion when we return
+		defer blobr.Close()
 		defer f.wg.Done()
 		verifier := d.Verifier()
 		tr := io.TeeReader(blobr, verifier)
@@ -568,6 +627,56 @@ func (h *proxyHandler) GetBlob(args []interface{}) (replyBuf, error) {
 	return ret, nil
 }
 
+// GetLayerInfo returns data about the layers of an image, useful for reading the layer contents.
+//
+// This needs to be called since the data returned by GetManifest() does not allow to correctly
+// calling GetBlob() for the containers-storage: transport (which doesn’t store the original compressed
+// representations referenced in the manifest).
+func (h *proxyHandler) GetLayerInfo(args []interface{}) (replyBuf, error) {
+	h.lock.Lock()
+	defer h.lock.Unlock()
+
+	var ret replyBuf
+
+	if h.sysctx == nil {
+		return ret, fmt.Errorf("client error: must invoke Initialize")
+	}
+
+	if len(args) != 1 {
+		return ret, fmt.Errorf("found %d args, expecting (imgid)", len(args))
+	}
+
+	imgref, err := h.parseImageFromID(args[0])
+	if err != nil {
+		return ret, err
+	}
+
+	ctx := context.TODO()
+
+	err = h.cacheTargetManifest(imgref)
+	if err != nil {
+		return ret, err
+	}
+	img := imgref.cachedimg
+
+	layerInfos, err := img.LayerInfosForCopy(ctx)
+	if err != nil {
+		return ret, err
+	}
+
+	if layerInfos == nil {
+		layerInfos = img.LayerInfos()
+	}
+
+	var layers []convertedLayerInfo
+	for _, layer := range layerInfos {
+		layers = append(layers, convertedLayerInfo{layer.Digest, layer.Size, layer.MediaType})
+	}
+
+	ret.value = layers
+	return ret, nil
+}
+
 // FinishPipe waits for the worker goroutine to finish, and closes the write side of the pipe.
 func (h *proxyHandler) FinishPipe(args []interface{}) (replyBuf, error) {
 	h.lock.Lock()
@@ -596,6 +705,17 @@ func (h *proxyHandler) FinishPipe(args []interface{}) (replyBuf, error) {
 	return ret, err
 }
 
+// close releases all resources associated with this proxy backend
+func (h *proxyHandler) close() {
+	for _, image := range h.images {
+		err := image.src.Close()
+		if err != nil {
+			// This shouldn't be fatal
+			logrus.Warnf("Failed to close image %s: %v", transports.ImageName(image.cachedimg.Reference()), err)
+		}
+	}
+}
+
 // send writes a reply buffer to the socket
 func (buf replyBuf) send(conn *net.UnixConn, err error) error {
 	replyToSerialize := reply{
@@ -678,6 +798,8 @@ func (h *proxyHandler) processRequest(readBytes []byte) (rb replyBuf, terminate
 		rb, err = h.Initialize(req.Args)
 	case "OpenImage":
 		rb, err = h.OpenImage(req.Args)
+	case "OpenImageOptional":
+		rb, err = h.OpenImageOptional(req.Args)
 	case "CloseImage":
 		rb, err = h.CloseImage(req.Args)
 	case "GetManifest":
@@ -688,10 +810,14 @@ func (h *proxyHandler) processRequest(readBytes []byte) (rb replyBuf, terminate
 		rb, err = h.GetFullConfig(req.Args)
 	case "GetBlob":
 		rb, err = h.GetBlob(req.Args)
+	case "GetLayerInfo":
+		rb, err = h.GetLayerInfo(req.Args)
 	case "FinishPipe":
 		rb, err = h.FinishPipe(req.Args)
 	case "Shutdown":
 		terminate = true
+	// NOTE: If you add a method here, you should very likely be bumping the
+	// const protocolVersion above.
 	default:
 		err = fmt.Errorf("unknown method: %s", req.Method)
 	}
@@ -705,6 +831,7 @@ func (opts *proxyOptions) run(args []string, stdout io.Writer) error {
 		images:      make(map[uint32]*openImage),
 		activePipes: make(map[uint32]*activePipe),
 	}
+	defer handler.close()
 
 	// Convert the socket FD passed by client into a net.FileConn
 	fd := os.NewFile(uintptr(opts.sockFd), "sock")

cmd/skopeo/sync.go

@@ -19,6 +19,8 @@ import (
 	"github.com/containers/image/v5/docker"
 	"github.com/containers/image/v5/docker/reference"
 	"github.com/containers/image/v5/pkg/cli"
+	"github.com/containers/image/v5/pkg/cli/sigstore"
+	"github.com/containers/image/v5/signature/signer"
 	"github.com/containers/image/v5/transports"
 	"github.com/containers/image/v5/types"
 	"github.com/opencontainers/go-digest"
@@ -36,6 +38,7 @@ type syncOptions struct {
 	retryOpts                *retry.Options
 	removeSignatures         bool                      // Do not copy signatures from the source image
 	signByFingerprint        string                    // Sign the image using a GPG key with the specified fingerprint
+	signBySigstoreParamFile  string                    // Sign the image using a sigstore signature per configuration in a param file
 	signBySigstorePrivateKey string                    // Sign the image using a sigstore private key
 	signPassphraseFile       string                    // Path pointing to a passphrase file when signing
 	format                   commonFlag.OptionalString // Force conversion of the image to a specified format
@@ -46,6 +49,7 @@ type syncOptions struct {
 	dryRun                   bool                      // Don't actually copy anything, just output what it would have done
 	preserveDigests          bool                      // Preserve digests during sync
 	keepGoing                bool                      // Whether or not to abort the sync if there are any errors during syncing the images
+	appendSuffix             string                    // Suffix to append to destination image tag
 }
 
 // repoDescriptor contains information of a single repository used as a sync source.
@@ -106,12 +110,14 @@ See skopeo-sync(1) for details.
 	flags := cmd.Flags()
 	flags.BoolVar(&opts.removeSignatures, "remove-signatures", false, "Do not copy signatures from SOURCE images")
 	flags.StringVar(&opts.signByFingerprint, "sign-by", "", "Sign the image using a GPG key with the specified `FINGERPRINT`")
+	flags.StringVar(&opts.signBySigstoreParamFile, "sign-by-sigstore", "", "Sign the image using a sigstore parameter file at `PATH`")
 	flags.StringVar(&opts.signBySigstorePrivateKey, "sign-by-sigstore-private-key", "", "Sign the image using a sigstore private key at `PATH`")
 	flags.StringVar(&opts.signPassphraseFile, "sign-passphrase-file", "", "File that contains a passphrase for the --sign-by key")
 	flags.VarP(commonFlag.NewOptionalStringValue(&opts.format), "format", "f", `MANIFEST TYPE (oci, v2s1, or v2s2) to use when syncing image(s) to a destination (default is manifest type of source, with fallbacks)`)
 	flags.StringVarP(&opts.source, "src", "s", "", "SOURCE transport type")
 	flags.StringVarP(&opts.destination, "dest", "d", "", "DESTINATION transport type")
 	flags.BoolVar(&opts.scoped, "scoped", false, "Images at DESTINATION are prefix using the full source image path as scope")
+	flags.StringVar(&opts.appendSuffix, "append-suffix", "", "String to append to DESTINATION tags")
 	flags.BoolVarP(&opts.all, "all", "a", false, "Copy all images if SOURCE-IMAGE is a list")
 	flags.BoolVar(&opts.dryRun, "dry-run", false, "Run without actually copying data")
 	flags.BoolVar(&opts.preserveDigests, "preserve-digests", false, "Preserve digests of images and lists")
@@ -216,15 +222,7 @@ func getImageTags(ctx context.Context, sysCtx *types.SystemContext, repoRef refe
 	}
 	tags, err := docker.GetRepositoryTags(ctx, sysCtx, dockerRef)
 	if err != nil {
-		var unauthorizedForCredentials docker.ErrUnauthorizedForCredentials
-		if errors.As(err, &unauthorizedForCredentials) {
-			// 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)
-			tags = nil
-		} else {
-			return nil, fmt.Errorf("Error determining repository tags for image %s: %w", name, err)
-		}
+		return nil, fmt.Errorf("Error determining repository tags for repo %s: %w", name, err)
 	}
 
 	return tags, nil
@@ -244,7 +242,11 @@ func imagesToCopyFromRepo(sys *types.SystemContext, repoRef reference.Named) ([]
 	for _, tag := range tags {
 		taggedRef, err := reference.WithTag(repoRef, tag)
 		if err != nil {
-			return nil, fmt.Errorf("Error creating a reference for repository %s and tag %q: %w", repoRef.Name(), tag, err)
+			logrus.WithFields(logrus.Fields{
+				"repo": repoRef.Name(),
+				"tag":  tag,
+			}).Errorf("Error creating a tagged reference from registry tag list: %v", err)
+			continue
 		}
 		ref, err := docker.NewReference(taggedRef)
 		if err != nil {
@@ -548,6 +550,8 @@ func (opts *syncOptions) run(args []string, stdout io.Writer) (retErr error) {
 		return errors.New("sync from 'dir' to 'dir' not implemented, consider using rsync instead")
 	}
 
+	opts.destImage.warnAboutIneffectiveOptions(transports.Get(opts.destination))
+
 	imageListSelection := copy.CopySystemImage
 	if opts.all {
 		imageListSelection = copy.CopyAllImages
@@ -604,13 +608,31 @@ func (opts *syncOptions) run(args []string, stdout io.Writer) (retErr error) {
 		}
 		passphrase = p
 	}
+
+	var signers []*signer.Signer
+	if opts.signBySigstoreParamFile != "" {
+		signer, err := sigstore.NewSignerFromParameterFile(opts.signBySigstoreParamFile, &sigstore.Options{
+			PrivateKeyPassphrasePrompt: func(keyFile string) (string, error) {
+				return promptForPassphrase(keyFile, os.Stdin, os.Stdout)
+			},
+			Stdin:  os.Stdin,
+			Stdout: stdout,
+		})
+		if err != nil {
+			return fmt.Errorf("Error using --sign-by-sigstore: %w", err)
+		}
+		defer signer.Close()
+		signers = append(signers, signer)
+	}
+
 	options := copy.Options{
 		RemoveSignatures:                      opts.removeSignatures,
+		Signers:                               signers,
 		SignBy:                                opts.signByFingerprint,
 		SignPassphrase:                        passphrase,
 		SignBySigstorePrivateKeyFile:          opts.signBySigstorePrivateKey,
 		SignSigstorePrivateKeyPassphrase:      []byte(passphrase),
-		ReportWriter:                          os.Stdout,
+		ReportWriter:                          stdout,
 		DestinationCtx:                        destinationCtx,
 		ImageListSelection:                    imageListSelection,
 		PreserveDigests:                       opts.preserveDigests,
@@ -644,7 +666,7 @@ func (opts *syncOptions) run(args []string, stdout io.Writer) (retErr error) {
 				destSuffix = path.Base(destSuffix)
 			}
 
-			destRef, err := destinationReference(path.Join(destination, destSuffix), opts.destination)
+			destRef, err := destinationReference(path.Join(destination, destSuffix)+opts.appendSuffix, opts.destination)
 			if err != nil {
 				return err
 			}

cmd/skopeo/utils.go

@@ -10,6 +10,7 @@ import (
 
 	commonFlag "github.com/containers/common/pkg/flag"
 	"github.com/containers/common/pkg/retry"
+	"github.com/containers/image/v5/directory"
 	"github.com/containers/image/v5/manifest"
 	"github.com/containers/image/v5/pkg/compression"
 	"github.com/containers/image/v5/transports/alltransports"
@@ -30,11 +31,11 @@ type errorShouldDisplayUsage struct {
 // The error for closeErr is annotated with description (which is not a format string)
 // Typical usage:
 //
-// defer func() {
-//     if err := something.Close(); err != nil {
-//         returnedErr = noteCloseFailure(returnedErr, "closing something", err)
-//     }
-// }
+//	defer func() {
+//		if err := something.Close(); err != nil {
+//			returnedErr = noteCloseFailure(returnedErr, "closing something", err)
+//		}
+//	}
 func noteCloseFailure(err error, description string, closeErr error) error {
 	// We don’t accept a Closer() and close it ourselves because signature.PolicyContext has .Destroy(), not .Close().
 	// This also makes it harder for a caller to do
@@ -244,6 +245,7 @@ func (opts *imageOptions) newSystemContext() (*types.SystemContext, error) {
 }
 
 // imageDestOptions is a superset of imageOptions specialized for image destinations.
+// Every user should call imageDestOptions.warnAboutIneffectiveOptions() as part of handling the CLI
 type imageDestOptions struct {
 	*imageOptions
 	dirForceCompression         bool                   // Compress layers when saving to the dir: transport
@@ -252,12 +254,13 @@ type imageDestOptions struct {
 	compressionFormat           string                 // Format to use for the compression
 	compressionLevel            commonFlag.OptionalInt // Level to use for the compression
 	precomputeDigests           bool                   // Precompute digests to dedup layers when saving to the docker: transport
+	imageDestFlagPrefix         string
 }
 
 // imageDestFlags prepares a collection of CLI flags writing into imageDestOptions, and the managed imageDestOptions structure.
 func imageDestFlags(global *globalOptions, shared *sharedImageOptions, deprecatedTLSVerify *deprecatedTLSVerifyOption, flagPrefix, credsOptionAlias string) (pflag.FlagSet, *imageDestOptions) {
 	genericFlags, genericOptions := imageFlags(global, shared, deprecatedTLSVerify, flagPrefix, credsOptionAlias)
-	opts := imageDestOptions{imageOptions: genericOptions}
+	opts := imageDestOptions{imageOptions: genericOptions, imageDestFlagPrefix: flagPrefix}
 	fs := pflag.FlagSet{}
 	fs.AddFlagSet(&genericFlags)
 	fs.BoolVar(&opts.dirForceCompression, flagPrefix+"compress", false, "Compress tarball image layers when saving to directory using the 'dir' transport. (default is same compression type as source)")
@@ -295,6 +298,19 @@ func (opts *imageDestOptions) newSystemContext() (*types.SystemContext, error) {
 	return ctx, err
 }
 
+// warnAboutIneffectiveOptions warns if any ineffective option was set by the user
+// Every user should call this as part of handling the CLI
+func (opts *imageDestOptions) warnAboutIneffectiveOptions(destTransport types.ImageTransport) {
+	if destTransport.Name() != directory.Transport.Name() {
+		if opts.dirForceCompression {
+			logrus.Warnf("--%s can only be used if the destination transport is 'dir'", opts.imageDestFlagPrefix+"compress")
+		}
+		if opts.dirForceDecompression {
+			logrus.Warnf("--%s can only be used if the destination transport is 'dir'", opts.imageDestFlagPrefix+"decompress")
+		}
+	}
+}
+
 func parseCreds(creds string) (string, string, error) {
 	if creds == "" {
 		return "", "", errors.New("credentials can't be empty")

contrib/cirrus/ostree_ext.dockerfile

@@ -0,0 +1,15 @@
+ARG BASE_FQIN=quay.io/coreos-assembler/fcos-buildroot:testing-devel
+FROM $BASE_FQIN
+
+# See 'Danger of using COPY and ADD instructions'
+# at https://cirrus-ci.org/guide/docker-builder-vm/#dockerfile-as-a-ci-environment
+# Provide easy way to force-invalidate image cache by .cirrus.yml change
+ARG CIRRUS_IMAGE_VERSION
+ENV CIRRUS_IMAGE_VERSION=$CIRRUS_IMAGE_VERSION
+ADD https://sh.rustup.rs /var/tmp/rustup_installer.sh
+
+RUN dnf erase -y rust && \
+    chmod +x /var/tmp/rustup_installer.sh && \
+    /var/tmp/rustup_installer.sh -y --default-toolchain stable --profile minimal
+
+ENV PATH=/root/.cargo/bin:/root/.local/bin:/root/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

contrib/cirrus/runner.sh

@@ -6,6 +6,17 @@
 
 set -e
 
+_EOL=20270501
+if [[ $(date +%Y%m%d) -ge $_EOL ]]; then
+    die "As of $_EOL this branch is probably
+no longer supported in RHEL 9.2/8.8, please
+confirm this with RHEL Program Management.  If so:
+It should be removed from Cirrus-Cron,
+the .cirrus.yml file removed, and
+the VM images (manually) unmarked
+'permanent=true'"
+fi
+
 # BEGIN Global export of all variables
 set -a
 
@@ -55,9 +66,6 @@ _run_setup() {
     # VM's come with the distro. skopeo package pre-installed
     dnf erase -y skopeo
 
-    # Required for testing the SIF transport
-    dnf install -y fakeroot squashfs-tools
-
     msg "Removing systemd-resolved from nsswitch.conf"
     # /etc/resolv.conf is already set to bypass systemd-resolvd
     sed -i -r -e 's/^(hosts.+)resolve.+dns/\1dns/' /etc/nsswitch.conf
@@ -115,18 +123,19 @@ _run_unit() {
     make test-unit-local BUILDTAGS="$BUILDTAGS"
 }
 
-_run_integration() {
+_podman_reset() {
     # Ensure we start with a clean-slate
-    podman system reset --force
+    showrun podman system reset --force
+}
 
+_run_integration() {
+    _podman_reset
     make test-integration-local BUILDTAGS="$BUILDTAGS"
 }
 
 _run_system() {
-    # Ensure we start with a clean-slate
-    podman system reset --force
-
-    # Executes with containers required for testing.
+    _podman_reset
+    ##### Note: Test MODIFIES THE HOST SETUP #####
     make test-system-local BUILDTAGS="$BUILDTAGS"
 }
 

contrib/skopeoimage/README.md

@@ -1,4 +1,17 @@
-<img src="https://cdn.rawgit.com/containers/skopeo/master/docs/skopeo.svg" width="250">
+[comment]: <> (***ATTENTION*** ***WARNING*** ***ALERT*** ***CAUTION*** ***DANGER***)
+[comment]: <> ()
+[comment]: <> (ANY changes made to this file, once commited/merged must)
+[comment]: <> (be manually copy/pasted -in markdown- into the description)
+[comment]: <> (field on Quay at the following locations:)
+[comment]: <> ()
+[comment]: <> (https://quay.io/repository/containers/skopeo)
+[comment]: <> (https://quay.io/repository/skopeo/stable)
+[comment]: <> (https://quay.io/repository/skopeo/testing)
+[comment]: <> (https://quay.io/repository/skopeo/upstream)
+[comment]: <> ()
+[comment]: <> (***ATTENTION*** ***WARNING*** ***ALERT*** ***CAUTION*** ***DANGER***)
+
+<img src="https://cdn.rawgit.com/containers/skopeo/main/docs/skopeo.svg" width="250">
 
 ----
 

contrib/skopeoimage/upstream/Containerfile

@@ -16,27 +16,11 @@ FROM registry.fedoraproject.org/fedora:latest
 #       https://bugzilla.redhat.com/show_bug.cgi?id=1995337#c3
 RUN dnf -y update && \
     rpm --setcaps shadow-utils 2>/dev/null && \
-    dnf -y --enablerepo updates-testing --exclude container-selinux install \
-        make \
-        golang \
-        git \
-        go-md2man \
-        fuse-overlayfs \
-        fuse3 \
-        containers-common \
-        gpgme-devel \
-        libassuan-devel \
-        btrfs-progs-devel \
-        device-mapper-devel && \
-    mkdir /root/skopeo && \
-    git clone https://github.com/containers/skopeo \
-        /root/skopeo/src/github.com/containers/skopeo && \
-    export GOPATH=/root/skopeo && \
-    cd /root/skopeo/src/github.com/containers/skopeo && \
-    make bin/skopeo && \
-    make PREFIX=/usr install && \
-    rm -rf /root/skopeo/* && \
-    dnf -y remove git golang go-md2man make && \
+    dnf -y install 'dnf-command(copr)' --enablerepo=updates-testing && \
+    dnf -y copr enable rhcontainerbot/podman-next && \
+    dnf -y install skopeo \
+        --exclude container-selinux \
+        --enablerepo=updates-testing && \
     dnf clean all && \
     rm -rf /var/cache /var/log/dnf* /var/log/yum.*
 

default.yaml

@@ -1,8 +1,8 @@
 # This is a default registries.d configuration file.  You may
 # add to this file or create additional files in registries.d/.
 #
-# lookaside: indicates a location that is read and write
-# lookaside-staging: indicates a location that is only for write
+# lookaside: for reading/writing simple signing signatures
+# lookaside-staging: for writing simple signing signatures, preferred over lookaside
 #
 # lookaside and lookaside-staging take a value of the following:
 #   lookaside:  {schema}://location
@@ -10,10 +10,12 @@
 # For reading signatures, schema may be http, https, or file.
 # For writing signatures, schema may only be file.
 
-# This is the default signature write location for docker registries.
+# The default locations are built-in, for both reading and writing:
+# /var/lib/containers/sigstore for root, or
+# ~/.local/share/containers/sigstore for non-root users.
 default-docker:
-#  lookaside: file:///var/lib/containers/sigstore
-  lookaside-staging: file:///var/lib/containers/sigstore
+#  lookaside: https://…
+#  lookaside-staging: file:///…
 
 # The 'docker' indicator here is the start of the configuration
 # for docker registries.
@@ -21,6 +23,6 @@ default-docker:
 # docker:
 #
 #   privateregistry.com:
-#    lookaside: http://privateregistry.com/sigstore/
+#    lookaside: https://privateregistry.com/sigstore/
 #    lookaside-staging: /mnt/nfs/privateregistry/sigstore
 

docs/skopeo-copy.1.md

@@ -56,7 +56,7 @@ After copying the image, write the digest of the resulting image to the file.
 
 **--preserve-digests**
 
-Preserve the digests during copying. Fail if the digest cannot be preserved.
+Preserve the digests during copying. Fail if the digest cannot be preserved. Consider using `--all` at the same time.
 
 **--encrypt-layer** _ints_
 
@@ -93,6 +93,11 @@ Do not copy signatures, if any, from _source-image_. Necessary when copying a si
 
 Add a “simple signing” signature using that key ID for an image name corresponding to _destination-image_
 
+**--sign-by-sigstore** _param-file_
+
+Add a sigstore signature based on the options in the specified containers sigstore signing parameter file, _param-file_.
+See containers-sigstore-signing-params.yaml(5) for details about the file format.
+
 **--sign-by-sigstore-private-key** _path_
 
 Add a sigstore signature using a private key at _path_ for an image name corresponding to _destination-image_
@@ -214,12 +219,12 @@ The password to access the destination registry.
 ## EXAMPLES
 
 To just copy an image from one registry to another:
-```sh
+```console
 $ skopeo copy docker://quay.io/skopeo/stable:latest docker://registry.example.com/skopeo:latest
 ```
 
 To copy the layers of the docker.io busybox image to a local directory:
-```sh
+```console
 $ mkdir -p /var/lib/images/busybox
 $ skopeo copy docker://busybox:latest dir:/var/lib/images/busybox
 $ ls /var/lib/images/busybox/*
@@ -228,42 +233,46 @@ $ ls /var/lib/images/busybox/*
   /tmp/busybox/8ddc19f16526912237dd8af81971d5e4dd0587907234be2b83e249518d5b673f.tar
 ```
 
-To copy and sign an image:
+To create an archive consumable by `docker load` (but note that using a registry is almost always more efficient):
+```console
+$ skopeo copy docker://busybox:latest docker-archive:archive-file.tar:busybox:latest
+```
 
-```sh
-# skopeo copy --sign-by dev@example.com containers-storage:example/busybox:streaming docker://example/busybox:gold
+To copy and sign an image:
+```console
+$ skopeo copy --sign-by dev@example.com containers-storage:example/busybox:streaming docker://example/busybox:gold
 ```
 
 To encrypt an image:
-```sh
-skopeo copy docker://docker.io/library/nginx:1.17.8 oci:local_nginx:1.17.8
+```console
+$ skopeo copy docker://docker.io/library/nginx:1.17.8 oci:local_nginx:1.17.8
 
-openssl genrsa -out private.key 1024
-openssl rsa -in private.key -pubout > public.key
+$ openssl genrsa -out private.key 1024
+$ openssl rsa -in private.key -pubout > public.key
 
-skopeo  copy --encryption-key jwe:./public.key oci:local_nginx:1.17.8 oci:try-encrypt:encrypted
+$ skopeo copy --encryption-key jwe:./public.key oci:local_nginx:1.17.8 oci:try-encrypt:encrypted
 ```
 
 To decrypt an image:
-```sh
-skopeo copy --decryption-key ./private.key oci:try-encrypt:encrypted oci:try-decrypt:decrypted
+```console
+$ 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
+```console
+$ 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
+```console
+$ skopeo copy --decryption-key ./private1.key --decryption-key ./private2.key --decryption-key ./private3.key oci:try-encrypt:encrypted oci:try-decrypt:decrypted
 ```
 
 Container images can also be partially encrypted by specifying the index of the layer. Layers are 0-indexed indices, with support for negative indexing. i.e. 0 is the first layer, -1 is the last layer.
 
 Let's say out of 3 layers that the image `docker.io/library/nginx:1.17.8` is made up of, we only want to encrypt the 2nd layer,
-```sh
-skopeo  copy --encryption-key jwe:./public.key --encrypt-layer 1 oci:local_nginx:1.17.8 oci:try-encrypt:encrypted
+```console
+$ skopeo copy --encryption-key jwe:./public.key --encrypt-layer 1 oci:local_nginx:1.17.8 oci:try-encrypt:encrypted
 ```
 
 ## SEE ALSO

docs/skopeo-delete.1.md

@@ -85,7 +85,7 @@ The password to access the registry.
 ## EXAMPLES
 
 Mark image example/pause for deletion from the registry.example.com registry:
-```sh
+```console
 $ skopeo delete docker://registry.example.com/example/pause:latest
 ```
 See above for additional details on using the command **delete**.

docs/skopeo-generate-sigstore-key.1.md

@@ -0,0 +1,47 @@
+% skopeo-generate-sigstore-key(1)
+
+## NAME
+skopeo\-generate-sigstore-key - Generate a sigstore public/private key pair.
+
+## SYNOPSIS
+**skopeo generate-sigstore-key** [*options*] **--output-prefix** _prefix_
+
+## DESCRIPTION
+
+Generates a public/private key pair suitable for creating sigstore image signatures.
+The private key is encrypted with a passphrase;
+if one is not provided using an option, this command prompts for it interactively.
+
+The private key is written to _prefix_**.private** .
+The private key is written to _prefix_**.pub** .
+
+## OPTIONS
+
+**--help**, **-h**
+
+Print usage statement
+
+**--output-prefix** _prefix_
+
+Mandatory.
+Path prefix for the output keys (_prefix_**.private** and _prefix_**.pub**).
+
+**--passphrase-file** _path_
+
+The passphare to use to encrypt the private key.
+Only the first line will be read.
+A passphrase stored in a file is of questionable security if other users can read this file.
+Do not use this option if at all avoidable.
+
+## EXAMPLES
+
+```console
+$ skopeo generate-sigstore-key --output-prefix mykey
+```
+
+# SEE ALSO
+skopeo(1), skopeo-copy(1), containers-policy.json(5)
+
+## AUTHORS
+
+Miloslav Trmač <mitr@redhat.com>

docs/skopeo-inspect.1.md

@@ -87,74 +87,90 @@ Do not list the available tags from the repository in the output. When `true`, t
 ## EXAMPLES
 
 To review information for the image fedora from the docker.io registry:
-```sh
+```console
 $ skopeo inspect docker://docker.io/fedora
+
 {
     "Name": "docker.io/library/fedora",
-    "Digest": "sha256:a97914edb6ba15deb5c5acf87bd6bd5b6b0408c96f48a5cbd450b5b04509bb7d",
+    "Digest": "sha256:f99efcddc4dd6736d8a88cc1ab6722098ec1d77dbf7aed9a7a514fc997ca08e0",
     "RepoTags": [
-	"20",
-	"21",
-	"22",
-	"23",
-	"24",
-	"heisenbug",
-	"latest",
-	"rawhide"
+        "20",
+        "21",
+        "..."
     ],
-    "Created": "2016-06-20T19:33:43.220526898Z",
-    "DockerVersion": "1.10.3",
-    "Labels": {},
+    "Created": "2022-11-16T07:26:42.618327645Z",
+    "DockerVersion": "20.10.12",
+    "Labels": {
+        "maintainer": "Clement Verna \u003ccverna@fedoraproject.org\u003e"
+    },
     "Architecture": "amd64",
     "Os": "linux",
     "Layers": [
-	"sha256:7c91a140e7a1025c3bc3aace4c80c0d9933ac4ee24b8630a6b0b5d8b9ce6b9d4"
+        "sha256:cb8b1ed77979b894115a983f391465651aa7eb3edd036be4b508eea47271eb93"
+    ],
+    "LayersData": [
+        {
+            "MIMEType": "application/vnd.docker.image.rootfs.diff.tar.gzip",
+            "Digest": "sha256:cb8b1ed77979b894115a983f391465651aa7eb3edd036be4b508eea47271eb93",
+            "Size": 65990920,
+            "Annotations": null
+        }
+    ],
+    "Env": [
+        "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
+        "DISTTAG=f37container",
+        "FGC=f37",
+        "FBR=f37"
     ]
 }
 ```
 
 To inspect python from the docker.io registry and not show the available tags:
-```sh
+```console
 $ skopeo inspect --no-tags docker://docker.io/library/python
 {
     "Name": "docker.io/library/python",
-    "Digest": "sha256:5ca194a80ddff913ea49c8154f38da66a41d2b73028c5cf7e46bc3c1d6fda572",
+    "Digest": "sha256:10fc14aa6ae69f69e4c953cffd9b0964843d8c163950491d2138af891377bc1d",
     "RepoTags": [],
-    "Created": "2021-10-05T23:40:54.936108045Z",
-    "DockerVersion": "20.10.7",
+    "Created": "2022-11-16T06:55:28.566254104Z",
+    "DockerVersion": "20.10.12",
     "Labels": null,
     "Architecture": "amd64",
     "Os": "linux",
     "Layers": [
-        "sha256:df5590a8898bedd76f02205dc8caa5cc9863267dbcd8aac038bcd212688c1cc7",
-        "sha256:705bb4cb554eb7751fd21a994f6f32aee582fbe5ea43037db6c43d321763992b",
-        "sha256:519df5fceacdeaadeec563397b1d9f4d7c29c9f6eff879739cab6f0c144f49e1",
-        "sha256:ccc287cbeddc96a0772397ca00ec85482a7b7f9a9fac643bfddd87b932f743db",
-        "sha256:e3f8e6af58ed3a502f0c3c15dce636d9d362a742eb5b67770d0cfcb72f3a9884",
-        "sha256:aebed27b2d86a5a3a2cbe186247911047a7e432b9d17daad8f226597c0ea4276",
-        "sha256:54c32182bdcc3041bf64077428467109a70115888d03f7757dcf614ff6d95ebe",
-        "sha256:cc8b7caedab13af07adf4836e13af2d4e9e54d794129b0fd4c83ece6b1112e86",
-        "sha256:462c3718af1d5cdc050cfba102d06c26f78fe3b738ce2ca2eb248034b1738945"
+        "sha256:a8ca11554fce00d9177da2d76307bdc06df7faeb84529755c648ac4886192ed1",
+        "sha256:e4e46864aba2e62ba7c75965e4aa33ec856ee1b1074dda6b478101c577b63abd",
+        "..."
+    ],
+    "LayersData": [
+        {
+            "MIMEType": "application/vnd.docker.image.rootfs.diff.tar.gzip",
+            "Digest": "sha256:a8ca11554fce00d9177da2d76307bdc06df7faeb84529755c648ac4886192ed1",
+            "Size": 55038615,
+            "Annotations": null
+        },
+        {
+            "MIMEType": "application/vnd.docker.image.rootfs.diff.tar.gzip",
+            "Digest": "sha256:e4e46864aba2e62ba7c75965e4aa33ec856ee1b1074dda6b478101c577b63abd",
+            "Size": 5164893,
+            "Annotations": null
+        },
+        "..."
     ],
     "Env": [
         "PATH=/usr/local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
         "LANG=C.UTF-8",
-        "GPG_KEY=A035C8C19219BA821ECEA86B64E628F8D684696D",
-        "PYTHON_VERSION=3.10.0",
-        "PYTHON_PIP_VERSION=21.2.4",
-        "PYTHON_SETUPTOOLS_VERSION=57.5.0",
-        "PYTHON_GET_PIP_URL=https://github.com/pypa/get-pip/raw/d781367b97acf0ece7e9e304bf281e99b618bf10/public/get-pip.py",
-        "PYTHON_GET_PIP_SHA256=01249aa3e58ffb3e1686b7141b4e9aac4d398ef4ac3012ed9dff8dd9f685ffe0"
+        "...",
     ]
 }
 ```
 
-```
+```console
 $ /bin/skopeo inspect --config docker://registry.fedoraproject.org/fedora --format "{{ .Architecture }}"
 amd64
 ```
 
-```
+```console
 $ /bin/skopeo inspect --format '{{ .Env }}' docker://registry.access.redhat.com/ubi8
 [PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin container=oci]
 ```

docs/skopeo-list-tags.1.md

@@ -79,7 +79,7 @@ This commands refers to repositories using a _transport_`:`_details_ format. The
 
 ### Docker Transport
 To get the list of tags in the "fedora" repository from the docker.io registry (the repository name expands to "library/fedora" per docker transport canonical form):
-```sh
+```console
 $ skopeo list-tags docker://docker.io/fedora
 {
     "Repository": "docker.io/library/fedora",
@@ -110,7 +110,7 @@ $ skopeo list-tags docker://docker.io/fedora
 
 To list the tags in a local host docker/distribution registry on port 5000, in this case for the "fedora" repository:
 
-```sh
+```console
 $ skopeo list-tags docker://localhost:5000/fedora
 {
     "Repository": "localhost:5000/fedora",
@@ -127,7 +127,7 @@ $ skopeo list-tags docker://localhost:5000/fedora
 
 To list the tags in a local docker-archive file:
 
-```sh
+```console
 $ skopeo list-tags docker-archive:/tmp/busybox.tar.gz
 {
     "Tags": [
@@ -138,7 +138,7 @@ $ skopeo list-tags docker-archive:/tmp/busybox.tar.gz
 
 Also supports more than one tags in an archive:
 
-```sh
+```console
 $ skopeo list-tags docker-archive:/tmp/docker-two-images.tar.gz
 {
     "Tags": [
@@ -150,7 +150,7 @@ $ skopeo list-tags docker-archive:/tmp/docker-two-images.tar.gz
 
 Will include a source-index entry for each untagged image:
 
-```sh
+```console
 $ skopeo list-tags docker-archive:/tmp/four-tags-with-an-untag.tar
 {
     "Tags": [

docs/skopeo-login.1.md

@@ -57,41 +57,41 @@ Write more detailed information to stdout
 
 ## EXAMPLES
 
-```
+```console
 $ skopeo login docker.io
 Username: testuser
 Password:
 Login Succeeded!
 ```
 
-```
+```console
 $ skopeo login -u testuser -p testpassword localhost:5000
 Login Succeeded!
 ```
 
-```
+```console
 $ skopeo login --authfile authdir/myauths.json docker.io
 Username: testuser
 Password:
 Login Succeeded!
 ```
 
-```
+```console
 $ skopeo login --tls-verify=false -u test -p test localhost:5000
 Login Succeeded!
 ```
 
-```
+```console
 $ skopeo login --cert-dir /etc/containers/certs.d/ -u foo -p bar localhost:5000
 Login Succeeded!
 ```
 
-```
+```console
 $ skopeo login -u testuser  --password-stdin < testpassword.txt docker.io
 Login Succeeded!
 ```
 
-```
+```console
 $ echo $testpassword | skopeo login -u testuser --password-stdin docker.io
 Login Succeeded!
 ```

docs/skopeo-logout.1.md

@@ -35,17 +35,17 @@ Require HTTPS and verify certificates when talking to the container registry or
 
 ## EXAMPLES
 
-```
+```console
 $ skopeo logout docker.io
 Remove login credentials for docker.io
 ```
 
-```
+```console
 $ skopeo logout --authfile authdir/myauths.json docker.io
 Remove login credentials for docker.io
 ```
 
-```
+```console
 $ skopeo logout --all
 Remove login credentials for all registries
 ```

docs/skopeo-manifest-digest.1.md

@@ -18,7 +18,7 @@ Print usage statement
 
 ## EXAMPLES
 
-```sh
+```console
 $ skopeo manifest-digest manifest.json
 sha256:a59906e33509d14c036c8678d687bd4eec81ed7c4b8ce907b888c607f6a1e0e6
 ```

docs/skopeo-standalone-sign.1.md

@@ -31,7 +31,7 @@ The passphare to use when signing with the key ID from `--sign-by`. Only the fir
 
 ## EXAMPLES
 
-```sh
+```console
 $ skopeo standalone-sign busybox-manifest.json registry.example.com/example/busybox 1D8230F6CDB6A06716E414C1DB72F2188BB46CC8 --output busybox.signature
 $
 ```

docs/skopeo-standalone-verify.1.md

@@ -30,7 +30,7 @@ Print usage statement
 
 ## EXAMPLES
 
-```sh
+```console
 $ skopeo standalone-verify busybox-manifest.json registry.example.com/example/busybox 1D8230F6CDB6A06716E414C1DB72F2188BB46CC8  busybox.signature
 Signature verified, digest sha256:20bf21ed457b390829cdbeec8795a7bea1626991fda603e0d01b4e7f60427e55
 ```

docs/skopeo-sync.1.md

@@ -1,14 +1,14 @@
 % skopeo-sync(1)
 
 ## NAME
-skopeo\-sync - Synchronize images between container registries and local directories.
+skopeo\-sync - Synchronize images between registry repositories and local directories.
 
 
 ## SYNOPSIS
 **skopeo sync** [*options*] --src _transport_ --dest _transport_ _source_ _destination_
 
 ## DESCRIPTION
-Synchronize images between container registries and local directories.
+Synchronize images between registry repoositories 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.
@@ -66,7 +66,9 @@ Print usage statement.
 
 **--scoped** Prefix images with the source image path, so that multiple images with the same name can be stored at _destination_.
 
-**--preserve-digests** Preserve the digests during copying. Fail if the digest cannot be preserved.
+**--append-suffix** _tag-suffix_ String to append to destination tags.
+
+**--preserve-digests** Preserve the digests during copying. Fail if the digest cannot be preserved. Consider using `--all` at the same time.
 
 **--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.
 
@@ -74,6 +76,11 @@ Print usage statement.
 
 Add a “simple signing” signature using that key ID for an image name corresponding to _destination-image_
 
+**--sign-by-sigstore** _param-file_
+
+Add a sigstore signature based on the options in the specified containers sigstore signing parameter file, _param-file_.
+See containers-sigstore-signing-params.yaml(5) for details about the file format.
+
 **--sign-by-sigstore-private-key** _path_
 
 Add a sigstore signature using a private key at _path_ for an image name corresponding to _destination-image_
@@ -126,7 +133,7 @@ The password to access the destination registry.
 ## EXAMPLES
 
 ### Synchronizing to a local directory
-```
+```console
 $ skopeo sync --src docker --dest dir registry.example.com/busybox /media/usb
 ```
 Images are located at:
@@ -144,7 +151,7 @@ Images are located at:
 /media/usb/busybox:1-glibc
 ```
 Sync run
-```
+```console
 $ skopeo sync --src dir --dest docker /media/usb/busybox:1-glibc my-registry.local.lan/test/
 ```
 Destination registry content:
@@ -154,7 +161,7 @@ my-registry.local.lan/test/busybox   1-glibc
 ```
 
 ### Synchronizing to a local directory, scoped
-```
+```console
 $ skopeo sync --src docker --dest dir --scoped registry.example.com/busybox /media/usb
 ```
 Images are located at:
@@ -167,8 +174,8 @@ Images are located at:
 ```
 
 ### Synchronizing to a container registry
-```
-skopeo sync --src docker --dest docker registry.example.com/busybox my-registry.local.lan
+```console
+$ skopeo sync --src docker --dest docker registry.example.com/busybox my-registry.local.lan
 ```
 Destination registry content:
 ```
@@ -177,8 +184,8 @@ registry.local.lan/busybox   1-glibc, 1-musl, 1-ubuntu, ..., latest
 ```
 
 ### Synchronizing to a container registry keeping the repository
-```
-skopeo sync --src docker --dest docker registry.example.com/repo/busybox my-registry.local.lan/repo
+```console
+$ skopeo sync --src docker --dest docker registry.example.com/repo/busybox my-registry.local.lan/repo
 ```
 Destination registry content:
 ```
@@ -186,6 +193,16 @@ REPO                              TAGS
 registry.local.lan/repo/busybox   1-glibc, 1-musl, 1-ubuntu, ..., latest
 ```
 
+### Synchronizing to a container registry with tag suffix
+```console
+$ skopeo sync --src docker --dest docker --append-suffix '-mirror' registry.example.com/busybox my-registry.local.lan
+```
+Destination registry content:
+```
+REPO                         TAGS
+registry.local.lan/busybox   1-glibc-mirror, 1-musl-mirror, 1-ubuntu-mirror, ..., latest-mirror
+```
+
 ### YAML file content (used _source_ for `**--src yaml**`)
 
 ```yaml
@@ -210,8 +227,8 @@ quay.io:
             - latest
 ```
 If the yaml filename is `sync.yml`, sync run:
-```
-skopeo sync --src yaml --dest docker sync.yml my-registry.local.lan/repo/
+```console
+$ skopeo sync --src yaml --dest docker sync.yml my-registry.local.lan/repo/
 ```
 This will copy the following images:
 - Repository `registry.example.com/busybox`: all images, as no tags are specified.

docs/skopeo.1.md

@@ -47,7 +47,7 @@ Most commands refer to container images, using a _transport_`:`_details_ format.
   **oci-archive:**_path_**:**_tag_
   An image _tag_ in a tar archive compliant with "Open Container Image Layout Specification" at _path_.
 
-See [containers-transports(5)](https://github.com/containers/image/blob/master/docs/containers-transports.5.md) for details.
+See [containers-transports(5)](https://github.com/containers/image/blob/main/docs/containers-transports.5.md) for details.
 
 ## OPTIONS
 
@@ -101,6 +101,7 @@ Print the version number
 | ----------------------------------------- | ------------------------------------------------------------------------------ |
 | [skopeo-copy(1)](skopeo-copy.1.md)        | Copy an image (manifest, filesystem layers, signatures) from one location to another. |
 | [skopeo-delete(1)](skopeo-delete.1.md)    | Mark the _image-name_ for later deletion by the registry's garbage collector.  |
+| [skopeo-generate-sigstore-key(1)](skopeo-generate-sigstore-key.1.md)    | Generate a sigstore public/private key pair.  |
 | [skopeo-inspect(1)](skopeo-inspect.1.md)  | Return low-level information about _image-name_ in a registry.                 |
 | [skopeo-list-tags(1)](skopeo-list-tags.1.md)  | List image names in a transport-specific collection of images.|
 | [skopeo-login(1)](skopeo-login.1.md)  | Login to a container registry. |
@@ -108,16 +109,16 @@ Print the version number
 | [skopeo-manifest-digest(1)](skopeo-manifest-digest.1.md)    | Compute a manifest digest for a manifest-file and write it to standard output. |
 | [skopeo-standalone-sign(1)](skopeo-standalone-sign.1.md)    | Debugging tool - Publish and sign an image in one step.      |
 | [skopeo-standalone-verify(1)](skopeo-standalone-verify.1.md)| Verify an image signature.                                   |
-| [skopeo-sync(1)](skopeo-sync.1.md)| Synchronize images between container registries and local directories.                 |
+| [skopeo-sync(1)](skopeo-sync.1.md)| Synchronize images between registry repositories and local directories.                |
 
 ## FILES
   **/etc/containers/policy.json**
   Default trust policy file, if **--policy** is not specified.
-  The policy format is documented in [containers-policy.json(5)](https://github.com/containers/image/blob/master/docs/containers-policy.json.5.md) .
+  The policy format is documented in [containers-policy.json(5)](https://github.com/containers/image/blob/main/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 [containers-policy.json(5)](https://github.com/containers/image/blob/master/docs/containers-policy.json.5.md).
+  The contents of this directory are documented in [containers-policy.json(5)](https://github.com/containers/image/blob/main/docs/containers-policy.json.5.md).
 
 ## SEE ALSO
 skopeo-login(1), docker-login(1), containers-auth.json(5), containers-storage.conf(5), containers-policy.json(5), containers-transports(5)

go.mod

@@ -3,16 +3,16 @@ module github.com/containers/skopeo
 go 1.17
 
 require (
-	github.com/containers/common v0.49.1
-	github.com/containers/image/v5 v5.22.1
-	github.com/containers/ocicrypt v1.1.8
-	github.com/containers/storage v1.42.0
-	github.com/docker/docker v20.10.20+incompatible
+	github.com/containers/common v0.51.4
+	github.com/containers/image/v5 v5.24.3
+	github.com/containers/ocicrypt v1.1.10
+	github.com/containers/storage v1.45.3
+	github.com/docker/distribution v2.8.1+incompatible
 	github.com/opencontainers/go-digest v1.0.0
 	github.com/opencontainers/image-spec v1.1.0-rc2
 	github.com/opencontainers/image-tools v1.0.0-rc3
 	github.com/sirupsen/logrus v1.9.0
-	github.com/spf13/cobra v1.6.0
+	github.com/spf13/cobra v1.6.1
 	github.com/spf13/pflag v1.0.5
 	github.com/stretchr/testify v1.8.1
 	github.com/syndtr/gocapability v0.0.0-20200815063812-42c35b437635
@@ -22,89 +22,115 @@ require (
 )
 
 require (
-	github.com/BurntSushi/toml v1.2.0 // indirect
+	github.com/BurntSushi/toml v1.2.1 // indirect
 	github.com/Microsoft/go-winio v0.6.0 // indirect
-	github.com/Microsoft/hcsshim v0.9.3 // indirect
+	github.com/Microsoft/hcsshim v0.9.6 // indirect
 	github.com/VividCortex/ewma v1.2.0 // indirect
 	github.com/acarl005/stripansi v0.0.0-20180116102854-5a71ef0e047d // indirect
-	github.com/beorn7/perks v1.0.1 // indirect
-	github.com/cespare/xxhash/v2 v2.2.0 // indirect
-	github.com/containerd/cgroups v1.0.3 // indirect
-	github.com/containerd/stargz-snapshotter/estargz v0.12.1 // indirect
-	github.com/containers/libtrust v0.0.0-20200511145503-9c3a6c22cd9a // indirect
+	github.com/asaskevich/govalidator v0.0.0-20210307081110-f21760c49a8d // indirect
+	github.com/containerd/cgroups v1.0.4 // indirect
+	github.com/containerd/stargz-snapshotter/estargz v0.13.0 // indirect
+	github.com/containers/libtrust v0.0.0-20230121012942-c1716e8a8d01 // indirect
+	github.com/coreos/go-oidc/v3 v3.5.0 // indirect
+	github.com/cyberphone/json-canonicalization v0.0.0-20220623050100-57a0ce2678a7 // indirect
 	github.com/cyphar/filepath-securejoin v0.2.3 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/docker/distribution v2.8.1+incompatible // indirect
+	github.com/docker/docker v20.10.23+incompatible // indirect
 	github.com/docker/docker-credential-helpers v0.7.0 // indirect
 	github.com/docker/go-connections v0.4.0 // indirect
-	github.com/docker/go-metrics v0.0.1 // indirect
 	github.com/docker/go-units v0.5.0 // indirect
 	github.com/dsnet/compress v0.0.2-0.20210315054119-f66993602bf5 // indirect
 	github.com/ghodss/yaml v1.0.0 // indirect
 	github.com/go-jose/go-jose/v3 v3.0.3 // indirect
+	github.com/go-openapi/analysis v0.21.4 // indirect
+	github.com/go-openapi/errors v0.20.3 // indirect
+	github.com/go-openapi/jsonpointer v0.19.5 // indirect
+	github.com/go-openapi/jsonreference v0.20.0 // indirect
+	github.com/go-openapi/loads v0.21.2 // indirect
+	github.com/go-openapi/runtime v0.24.1 // indirect
+	github.com/go-openapi/spec v0.20.7 // indirect
+	github.com/go-openapi/strfmt v0.21.3 // indirect
+	github.com/go-openapi/swag v0.22.3 // indirect
+	github.com/go-openapi/validate v0.22.0 // indirect
+	github.com/go-playground/locales v0.14.0 // indirect
+	github.com/go-playground/universal-translator v0.18.0 // indirect
+	github.com/go-playground/validator/v10 v10.11.1 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
-	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/golang/protobuf v1.5.3 // indirect
 	github.com/google/go-containerregistry v0.13.0 // indirect
 	github.com/google/go-intervals v0.0.2 // indirect
+	github.com/google/trillian v1.5.0 // indirect
 	github.com/google/uuid v1.3.0 // indirect
 	github.com/gorilla/mux v1.8.0 // indirect
 	github.com/hashicorp/errwrap v1.1.0 // indirect
+	github.com/hashicorp/go-cleanhttp v0.5.2 // indirect
 	github.com/hashicorp/go-multierror v1.1.1 // indirect
+	github.com/hashicorp/go-retryablehttp v0.7.2 // indirect
 	github.com/imdario/mergo v0.3.13 // indirect
 	github.com/inconshreveable/mousetrap v1.0.1 // indirect
+	github.com/josharian/intern v1.0.0 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
-	github.com/klauspost/compress v1.15.11 // indirect
-	github.com/klauspost/pgzip v1.2.5 // indirect
-	github.com/kr/pretty v0.2.1 // indirect
+	github.com/klauspost/compress v1.15.15 // indirect
+	github.com/klauspost/pgzip v1.2.6-0.20220930104621-17e8dac29df8 // indirect
+	github.com/kr/pretty v0.3.0 // indirect
 	github.com/kr/text v0.2.0 // indirect
+	github.com/leodido/go-urn v1.2.1 // indirect
 	github.com/letsencrypt/boulder v0.0.0-20230130200452-c091e64aa391 // indirect
-	github.com/mattn/go-runewidth v0.0.13 // indirect
+	github.com/mailru/easyjson v0.7.7 // indirect
+	github.com/mattn/go-runewidth v0.0.14 // indirect
 	github.com/mattn/go-shellwords v1.0.12 // indirect
-	github.com/matttproud/golang_protobuf_extensions v1.0.2-0.20181231171920-c182affec369 // indirect
+	github.com/matttproud/golang_protobuf_extensions v1.0.4 // indirect
 	github.com/miekg/pkcs11 v1.1.1 // indirect
-	github.com/mistifyio/go-zfs v2.1.2-0.20190413222219-f784269be439+incompatible // indirect
+	github.com/mistifyio/go-zfs/v3 v3.0.0 // indirect
+	github.com/mitchellh/mapstructure v1.5.0 // indirect
 	github.com/moby/sys/mountinfo v0.6.2 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
-	github.com/opencontainers/runc v1.1.3 // indirect
-	github.com/opencontainers/runtime-spec v1.0.3-0.20210326190908-1c3f411f0417 // indirect
-	github.com/opencontainers/selinux v1.10.1 // indirect
+	github.com/oklog/ulid v1.3.1 // indirect
+	github.com/opencontainers/runc v1.1.4 // indirect
+	github.com/opencontainers/runtime-spec v1.0.3-0.20220825212826-86290f6a00fb // indirect
+	github.com/opencontainers/selinux v1.10.2 // indirect
+	github.com/opentracing/opentracing-go v1.2.0 // indirect
 	github.com/ostreedev/ostree-go v0.0.0-20210805093236-719684c64e4f // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/proglottis/gpgme v0.1.3 // indirect
-	github.com/prometheus/client_golang v1.13.0 // indirect
-	github.com/prometheus/client_model v0.3.0 // indirect
-	github.com/prometheus/common v0.37.0 // indirect
-	github.com/prometheus/procfs v0.8.0 // indirect
-	github.com/rivo/uniseg v0.2.0 // indirect
+	github.com/rivo/uniseg v0.4.3 // indirect
+	github.com/rogpeppe/go-internal v1.8.0 // indirect
 	github.com/russross/blackfriday v2.0.0+incompatible // indirect
+	github.com/segmentio/ksuid v1.0.4 // indirect
+	github.com/sigstore/fulcio v1.0.0 // indirect
+	github.com/sigstore/rekor v1.0.1 // indirect
 	github.com/sigstore/sigstore v1.5.2 // indirect
+	github.com/skratchdot/open-golang v0.0.0-20200116055534-eef842397966 // indirect
 	github.com/stefanberger/go-pkcs11uri v0.0.0-20201008174630-78d3cae3a980 // indirect
-	github.com/sylabs/sif/v2 v2.7.1 // indirect
+	github.com/sylabs/sif/v2 v2.9.0 // indirect
 	github.com/tchap/go-patricia v2.3.0+incompatible // indirect
-	github.com/theupdateframework/go-tuf v0.5.2-0.20220930112810-3890c1e7ace4 // indirect
+	github.com/theupdateframework/go-tuf v0.5.2-0.20221207161717-9cb61d6e65f5 // indirect
 	github.com/titanous/rocacheck v0.0.0-20171023193734-afe73141d399 // indirect
-	github.com/ulikunitz/xz v0.5.10 // indirect
+	github.com/ulikunitz/xz v0.5.11 // indirect
 	github.com/vbatts/tar-split v0.11.2 // indirect
-	github.com/vbauerster/mpb/v7 v7.4.2 // indirect
+	github.com/vbauerster/mpb/v7 v7.5.3 // indirect
 	github.com/xeipuuv/gojsonpointer v0.0.0-20190905194746-02993c407bfb // indirect
 	github.com/xeipuuv/gojsonreference v0.0.0-20180127040603-bd5ef7bd5415 // indirect
 	github.com/xeipuuv/gojsonschema v1.2.0 // indirect
 	go.etcd.io/bbolt v1.3.6 // indirect
-	go.mozilla.org/pkcs7 v0.0.0-20200128120323-432b2356ecb1 // indirect
+	go.mongodb.org/mongo-driver v1.11.1 // indirect
+	go.mozilla.org/pkcs7 v0.0.0-20210826202110-33d05740a352 // indirect
 	go.opencensus.io v0.24.0 // indirect
 	golang.org/x/crypto v0.19.0 // indirect
 	golang.org/x/mod v0.8.0 // indirect
-	golang.org/x/net v0.10.0 // indirect
+	golang.org/x/net v0.17.0 // indirect
+	golang.org/x/oauth2 v0.7.0 // indirect
 	golang.org/x/sync v0.1.0 // indirect
 	golang.org/x/sys v0.17.0 // indirect
 	golang.org/x/text v0.14.0 // indirect
 	golang.org/x/tools v0.6.0 // indirect
-	google.golang.org/genproto v0.0.0-20230209215440-0dfe4f8abfcc // indirect
-	google.golang.org/grpc v1.53.0 // indirect
-	google.golang.org/protobuf v1.28.1 // indirect
+	google.golang.org/appengine v1.6.7 // indirect
+	google.golang.org/genproto v0.0.0-20230410155749-daa745c078e1 // indirect
+	google.golang.org/grpc v1.56.3 // indirect
+	google.golang.org/protobuf v1.30.0 // indirect
 	gopkg.in/go-jose/go-jose.v2 v2.6.3 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -10,27 +10,19 @@ cloud.google.com/go v0.50.0/go.mod h1:r9sluTvynVuxRIOHXQEHMFffphuXHOMZMycpNR5e6T
 cloud.google.com/go v0.52.0/go.mod h1:pXajvRH/6o3+F9jDHZWQ5PbGhn+o8w9qiu/CffaVdO4=
 cloud.google.com/go v0.53.0/go.mod h1:fp/UouUEsRkN6ryDKNW/Upv/JBKnv6WDthjR6+vze6M=
 cloud.google.com/go v0.54.0/go.mod h1:1rq2OEkV3YMf6n/9ZvGWI3GWw0VoqH/1x2nd8Is/bPc=
-cloud.google.com/go v0.56.0/go.mod h1:jr7tqZxxKOVYizybht9+26Z/gUq7tiRzu+ACVAMbKVk=
 cloud.google.com/go v0.57.0/go.mod h1:oXiQ6Rzq3RAkkY7N6t3TcE6jE+CIBBbA36lwQ1JyzZs=
-cloud.google.com/go v0.62.0/go.mod h1:jmCYTdRCQuc1PHIIJ/maLInMho30T/Y0M4hTdTShOYc=
-cloud.google.com/go v0.65.0/go.mod h1:O5N8zS7uWy9vkA9vayVHs65eM1ubvY4h553ofrNHObY=
 cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
 cloud.google.com/go/bigquery v1.3.0/go.mod h1:PjpwJnslEMmckchkHFfq+HTD2DmtT67aNFKH1/VBDHE=
 cloud.google.com/go/bigquery v1.4.0/go.mod h1:S8dzgnTigyfTmLBfrtrhyYhwRxG72rYxvftPBK2Dvzc=
-cloud.google.com/go/bigquery v1.5.0/go.mod h1:snEHRnqQbz117VIFhE8bmtwIDY80NLUZUMb4Nv6dBIg=
-cloud.google.com/go/bigquery v1.7.0/go.mod h1://okPTzCYNXSlb24MZs83e2Do+h+VXtc4gLoIoXIAPc=
-cloud.google.com/go/bigquery v1.8.0/go.mod h1:J5hqkt3O0uAFnINi6JXValWIb1v0goeZM77hZzJN/fQ=
+cloud.google.com/go/compute/metadata v0.2.0/go.mod h1:zFmK7XCadkQkj6TtorcaGlCW1hT1fIilQDwofLpJ20k=
 cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
 cloud.google.com/go/datastore v1.1.0/go.mod h1:umbIZjpQpHh4hmRpGhH4tLFup+FVzqBi1b3c64qFpCk=
 cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
 cloud.google.com/go/pubsub v1.1.0/go.mod h1:EwwdRX2sKPjnvnqCa270oGRyludottCI76h+R3AArQw=
 cloud.google.com/go/pubsub v1.2.0/go.mod h1:jhfEVHT8odbXTkndysNHCcx0awwzvfOlguIAii9o8iA=
-cloud.google.com/go/pubsub v1.3.1/go.mod h1:i+ucay31+CNRpDW4Lu78I4xXG+O1r/MAHgjpRVR+TSU=
 cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw=
 cloud.google.com/go/storage v1.5.0/go.mod h1:tpKbwo567HUNpVclU5sGELwQWBDZ8gh0ZeosJ0Rtdos=
 cloud.google.com/go/storage v1.6.0/go.mod h1:N7U0C8pVQ/+NIKOBQyamJIeKQKkZ+mxpohlUTyfDhBk=
-cloud.google.com/go/storage v1.8.0/go.mod h1:Wv1Oy7z6Yz3DshWRJFhqM/UCfaWIRTdp0RXyy7KQOVs=
-cloud.google.com/go/storage v1.10.0/go.mod h1:FLPqc6j+Ki4BU591ie1oL6qBQGu2Bl/tZ9ullr3+Kg0=
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
 github.com/14rcole/gopopulate v0.0.0-20180821133914-b175b219e774 h1:SCbEWT58NSt7d2mcFdvxC9uyrdcTfvBbPLThhkDmXzg=
 github.com/Azure/azure-sdk-for-go v16.2.1+incompatible/go.mod h1:9XXNKU+eRnpl9moKnB4QOLf1HestfXbmab5FXxiDBjc=
@@ -47,8 +39,8 @@ github.com/Azure/go-autorest/autorest/mocks v0.4.1/go.mod h1:LTp+uSrOhSkaKrUy935
 github.com/Azure/go-autorest/logger v0.2.0/go.mod h1:T9E3cAhj2VqvPOtCYAvby9aBXkZmbF5NWuPV8+WeEW8=
 github.com/Azure/go-autorest/tracing v0.6.0/go.mod h1:+vhtPC754Xsa23ID7GlGsrdKBpUA79WCAKPPZVC2DeU=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/BurntSushi/toml v1.2.0 h1:Rt8g24XnyGTyglgET/PRUNlrUeu9F5L+7FilkXfZgs0=
-github.com/BurntSushi/toml v1.2.0/go.mod h1:CxXYINrC8qIiEnFrOxCa7Jy5BFHlXnUU2pbicEuybxQ=
+github.com/BurntSushi/toml v1.2.1 h1:9F2/+DoOYIOksmaJFPw1tGFy1eDnIJXg+UHjuD8lTak=
+github.com/BurntSushi/toml v1.2.1/go.mod h1:CxXYINrC8qIiEnFrOxCa7Jy5BFHlXnUU2pbicEuybxQ=
 github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
 github.com/Microsoft/go-winio v0.4.11/go.mod h1:VhR8bwka0BXejwEJY73c50VrPtXAaKcyvVC4A4RozmA=
 github.com/Microsoft/go-winio v0.4.14/go.mod h1:qXqCSQ3Xa7+6tgxaGTIe4Kpcdsi+P8jBhyzoq1bpyYA=
@@ -58,7 +50,6 @@ github.com/Microsoft/go-winio v0.4.16/go.mod h1:XB6nPKklQyQ7GC9LdcBEcBl8PF76WugX
 github.com/Microsoft/go-winio v0.4.17-0.20210211115548-6eac466e5fa3/go.mod h1:JPGBdM1cNvN/6ISo+n8V5iA4v8pBzdOpzfwIujj1a84=
 github.com/Microsoft/go-winio v0.4.17-0.20210324224401-5516f17a5958/go.mod h1:JPGBdM1cNvN/6ISo+n8V5iA4v8pBzdOpzfwIujj1a84=
 github.com/Microsoft/go-winio v0.4.17/go.mod h1:JPGBdM1cNvN/6ISo+n8V5iA4v8pBzdOpzfwIujj1a84=
-github.com/Microsoft/go-winio v0.5.2/go.mod h1:WpS1mjBmmwHBEWmogvA2mj8546UReBk4v8QkMxJ6pZY=
 github.com/Microsoft/go-winio v0.6.0 h1:slsWYD/zyx7lCXoZVlvQrj0hPTM1HI4+v1sIda2yDvg=
 github.com/Microsoft/go-winio v0.6.0/go.mod h1:cTAf44im0RAYeL23bpB+fzCyDH2MJiz2BO69KH/soAE=
 github.com/Microsoft/hcsshim v0.8.6/go.mod h1:Op3hHsoHPAvb6lceZHDtd9OkTew38wNoXnJs8iY7rUg=
@@ -69,8 +60,8 @@ github.com/Microsoft/hcsshim v0.8.14/go.mod h1:NtVKoYxQuTLx6gEq0L96c9Ju4JbRJ4nY2
 github.com/Microsoft/hcsshim v0.8.15/go.mod h1:x38A4YbHbdxJtc0sF6oIz+RG0npwSCAvn69iY6URG00=
 github.com/Microsoft/hcsshim v0.8.16/go.mod h1:o5/SZqmR7x9JNKsW3pu+nqHm0MF8vbA+VxGOoXdC600=
 github.com/Microsoft/hcsshim v0.8.21/go.mod h1:+w2gRZ5ReXQhFOrvSQeNfhrYB/dg3oDwTOcER2fw4I4=
-github.com/Microsoft/hcsshim v0.9.3 h1:k371PzBuRrz2b+ebGuI2nVgVhgsVX60jMfSw80NECxo=
-github.com/Microsoft/hcsshim v0.9.3/go.mod h1:7pLA8lDk46WKDWlVsENo92gC0XFa8rbKfyFRBqxEbCc=
+github.com/Microsoft/hcsshim v0.9.6 h1:VwnDOgLeoi2du6dAznfmspNqTiwczvjv4K7NxuY9jsY=
+github.com/Microsoft/hcsshim v0.9.6/go.mod h1:7pLA8lDk46WKDWlVsENo92gC0XFa8rbKfyFRBqxEbCc=
 github.com/Microsoft/hcsshim/test v0.0.0-20201218223536-d3e5debf77da/go.mod h1:5hlzMzRKMLyo42nCZ9oml8AdTlq/0cvIaBv6tK1RehU=
 github.com/Microsoft/hcsshim/test v0.0.0-20210227013316-43a75bb4edd3/go.mod h1:mw7qgWloBUl75W/gVH3cQszUg1+gUITj7D6NY7ywVnY=
 github.com/NYTimes/gziphandler v0.0.0-20170623195520-56545f4a5d46/go.mod h1:3wb06e3pkSAbeQ52E9H9iFoQsEEwGN64994WTCIhntQ=
@@ -88,11 +79,13 @@ github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuy
 github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
 github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
-github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d/go.mod h1:rBZYJk541a8SKzHPHnH3zbiI+7dagKZ0cgpgrD7Fyho=
 github.com/alexflint/go-filemutex v0.0.0-20171022225611-72bdc8eae2ae/go.mod h1:CgnQgUtFrFz9mxFNtED3jI5tLDjKlOM+oUF/sTk6ps0=
 github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY=
 github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
 github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a/go.mod h1:lB+ZfQJz7igIIfQNfa7Ml4HSf2uFQQRzpGGRXenZAgY=
+github.com/asaskevich/govalidator v0.0.0-20200907205600-7a23bdc65eef/go.mod h1:WaHUgvxTVq04UNunO+XhnAqY/wQc+bxr74GqbsZ/Jqw=
+github.com/asaskevich/govalidator v0.0.0-20210307081110-f21760c49a8d h1:Byv0BzEl3/e6D5CLfI0j/7hiIEtvGVFPCZ7Ei2oq8iQ=
+github.com/asaskevich/govalidator v0.0.0-20210307081110-f21760c49a8d/go.mod h1:WaHUgvxTVq04UNunO+XhnAqY/wQc+bxr74GqbsZ/Jqw=
 github.com/aws/aws-sdk-go v1.15.11/go.mod h1:mFuSZ37Z9YOHbQEwBWztmVzqXrEkub65tZoCYDt7FT0=
 github.com/beorn7/perks v0.0.0-20160804104726-4c0e84591b9a/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
@@ -112,11 +105,10 @@ github.com/bugsnag/osext v0.0.0-20130617224835-0dd3f918b21b/go.mod h1:obH5gd0Bsq
 github.com/bugsnag/panicwrap v0.0.0-20151223152923-e2c28503fcd0/go.mod h1:D/8v3kj0zr8ZAKg1AQ6crr+5VwKN5eIywRkfhyM/+dE=
 github.com/cenkalti/backoff/v4 v4.1.1/go.mod h1:scbssz8iZGpm3xbr14ovlUdkxfGXNInqkPWOWmG2CLw=
 github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
+github.com/cespare/xxhash v1.1.0 h1:a6HrQnmkObjyL+Gs60czilIUGqrzKutQD6XZog3p+ko=
 github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
 github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
-github.com/cespare/xxhash/v2 v2.1.2/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=
-github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/checkpoint-restore/go-criu/v4 v4.1.0/go.mod h1:xUQBLp4RLc5zJtWY++yjOoMoB5lihDt7fai+75m+rGw=
 github.com/checkpoint-restore/go-criu/v5 v5.0.0/go.mod h1:cfwC0EG7HMUenopBsUf9d89JlCLQIfgVcNsNN0t6T2M=
 github.com/checkpoint-restore/go-criu/v5 v5.3.0/go.mod h1:E/eQpaFtUKGOOSEBZgmKAcn+zUUwWxqcaKZlF54wK8E=
@@ -148,8 +140,8 @@ github.com/containerd/cgroups v0.0.0-20200710171044-318312a37340/go.mod h1:s5q4S
 github.com/containerd/cgroups v0.0.0-20200824123100-0b889c03f102/go.mod h1:s5q4SojHctfxANBDvMeIaIovkq29IP48TKAxnhYRxvo=
 github.com/containerd/cgroups v0.0.0-20210114181951-8a68de567b68/go.mod h1:ZJeTFisyysqgcCdecO57Dj79RfL0LNeGiFUqLYQRYLE=
 github.com/containerd/cgroups v1.0.1/go.mod h1:0SJrPIenamHDcZhEcJMNBB85rHcUsw4f25ZfBiPYRkU=
-github.com/containerd/cgroups v1.0.3 h1:ADZftAkglvCiD44c77s5YmMqaP2pzVCFZvBmAlBdAP4=
-github.com/containerd/cgroups v1.0.3/go.mod h1:/ofk34relqNjSGyqPrmEULrO4Sc8LJhvJmWbUCUKqj8=
+github.com/containerd/cgroups v1.0.4 h1:jN/mbWBEaz+T1pi5OFtnkQ+8qnmEbAr1Oo1FRm5B0dA=
+github.com/containerd/cgroups v1.0.4/go.mod h1:nLNQtsF7Sl2HxNebu77i1R0oDlhiTG+kO4JTrUzo6IA=
 github.com/containerd/console v0.0.0-20180822173158-c12b1e7919c1/go.mod h1:Tj/on1eG8kiEhd0+fhSDzsPAFESxzBBvdyEgyryXffw=
 github.com/containerd/console v0.0.0-20181022165439-0650fd9eeb50/go.mod h1:Tj/on1eG8kiEhd0+fhSDzsPAFESxzBBvdyEgyryXffw=
 github.com/containerd/console v0.0.0-20191206165004-02ecf6a7291e/go.mod h1:8Pf4gM6VEbTNRIT26AyyU7hxdQU3MvAvxVI0sc00XBE=
@@ -198,9 +190,8 @@ github.com/containerd/nri v0.0.0-20201007170849-eb1350a75164/go.mod h1:+2wGSDGFY
 github.com/containerd/nri v0.0.0-20210316161719-dbaa18c31c14/go.mod h1:lmxnXF6oMkbqs39FiCt1s0R2HSMhcLel9vNL3m4AaeY=
 github.com/containerd/nri v0.1.0/go.mod h1:lmxnXF6oMkbqs39FiCt1s0R2HSMhcLel9vNL3m4AaeY=
 github.com/containerd/stargz-snapshotter/estargz v0.4.1/go.mod h1:x7Q9dg9QYb4+ELgxmo4gBUeJB0tl5dqH1Sdz0nJU1QM=
-github.com/containerd/stargz-snapshotter/estargz v0.12.0/go.mod h1:AIQ59TewBFJ4GOPEQXujcrJ/EKxh5xXZegW1rkR1P/M=
-github.com/containerd/stargz-snapshotter/estargz v0.12.1 h1:+7nYmHJb0tEkcRaAW+MHqoKaJYZmkikupxCqVtmPuY0=
-github.com/containerd/stargz-snapshotter/estargz v0.12.1/go.mod h1:12VUuCq3qPq4y8yUW+l5w3+oXV3cx2Po3KSe/SmPGqw=
+github.com/containerd/stargz-snapshotter/estargz v0.13.0 h1:fD7AwuVV+B40p0d9qVkH/Au1qhp8hn/HWJHIYjpEcfw=
+github.com/containerd/stargz-snapshotter/estargz v0.13.0/go.mod h1:m+9VaGJGlhCnrcEUod8mYumTmRgblwd3rC5UCEh2Yp0=
 github.com/containerd/ttrpc v0.0.0-20190828154514-0e0f228740de/go.mod h1:PvCDdDGpgqzQIzDW1TphrGLssLDZp2GuS+X5DkEJB8o=
 github.com/containerd/ttrpc v0.0.0-20190828172938-92c8520ef9f8/go.mod h1:PvCDdDGpgqzQIzDW1TphrGLssLDZp2GuS+X5DkEJB8o=
 github.com/containerd/ttrpc v0.0.0-20191028202541-4f1b8fe65a5c/go.mod h1:LPm1u0xBw8r8NOKoOdNMeVHSawSsltak+Ihv+etqsE8=
@@ -221,24 +212,26 @@ github.com/containernetworking/cni v0.8.0/go.mod h1:LGwApLUm2FpoOfxTDEeq8T9ipbpZ
 github.com/containernetworking/cni v0.8.1/go.mod h1:LGwApLUm2FpoOfxTDEeq8T9ipbpZ61X79hmU3w8FmsY=
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@@ -254,6 +247,8 @@ github.com/cpuguy83/go-md2man/v2 v2.0.0/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsr
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@@ -276,8 +271,8 @@ github.com/docker/distribution v2.7.1+incompatible/go.mod h1:J2gT2udsDAN96Uj4Kfc
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@@ -286,13 +281,11 @@ github.com/docker/go-connections v0.4.0/go.mod h1:Gbd7IOopHjR8Iph03tsViu4nIes5Xh
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@@ -314,6 +307,7 @@ github.com/facebookgo/clock v0.0.0-20150410010913-600d898af40a h1:yDWHCSQ40h88yi
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@@ -327,31 +321,97 @@ github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9
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@@ -368,6 +428,7 @@ github.com/gogo/protobuf v1.3.1/go.mod h1:SlYgWuQ5SjCEi6WLHjHCa1yvBfUnHcTbrrZtXP
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@@ -381,7 +442,6 @@ github.com/golang/mock v1.3.1/go.mod h1:sBzyDLLjw3U8JLTeZvSv8jJB+tU5PVekmnlKIyFU
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@@ -398,15 +458,16 @@ github.com/golang/protobuf v1.4.1/go.mod h1:U8fpvMrcmy5pZrNK1lt4xCsGvpyWQ/VVv6QD
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@@ -414,6 +475,7 @@ github.com/google/go-cmp v0.5.3/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/
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@@ -424,15 +486,15 @@ github.com/google/go-intervals v0.0.2/go.mod h1:MkaR3LNRfeKLPmqgJYs4E66z5InYjmCj
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@@ -462,10 +524,16 @@ github.com/hashicorp/errwrap v0.0.0-20141028054710-7554cd9344ce/go.mod h1:YH+1FK
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@@ -488,19 +556,21 @@ github.com/jmespath/go-jmespath v0.0.0-20160202185014-0b12d6b521d8/go.mod h1:Nht
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@@ -727,6 +825,8 @@ github.com/sirupsen/logrus v1.7.0/go.mod h1:yWOB1SBYBC5VeMP7gHvWumXLIWorT60ONWic
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@@ -737,8 +837,8 @@ github.com/spf13/cast v1.3.0/go.mod h1:Qx5cxh0v+4UWYiBimWS+eyWzqEqokIECu5etghLkU
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@@ -766,8 +866,8 @@ github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/
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@@ -775,16 +875,18 @@ github.com/syndtr/gocapability v0.0.0-20200815063812-42c35b437635/go.mod h1:hkRG
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@@ -792,8 +894,8 @@ github.com/urfave/cli v1.22.2/go.mod h1:Gos4lmkARVdJ6EkW0WaNv/tZAAMe9V7XWyB60NtX
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@@ -804,6 +906,11 @@ github.com/vmihailenco/msgpack/v5 v5.3.5 h1:5gO0H1iULLWGhs2H5tbAHIZTV8/cYafcFOr9
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@@ -814,9 +921,11 @@ github.com/xeipuuv/gojsonschema v1.2.0 h1:LhYJRs+L4fBtjZUfuSZIKGeVu0QRy8e5Xi7D17
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@@ -829,35 +938,46 @@ go.etcd.io/bbolt v1.3.5/go.mod h1:G5EMThwa9y8QZGBClrRx5EY+Yw9kAhnjy3bSjsnlVTQ=
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+go.mongodb.org/mongo-driver v1.7.3/go.mod h1:NqaYOwnXWr5Pm7AOpO5QFxKJ503nbMse/R79oO62zWg=
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@@ -924,10 +1044,6 @@ golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLL
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@@ -936,25 +1052,30 @@ golang.org/x/net v0.0.0-20201110031124-69a78807bb2b/go.mod h1:sp8m0HH+o8qH0wwXwY
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@@ -1063,8 +1185,10 @@ golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3
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@@ -1086,9 +1210,13 @@ golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3
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@@ -1112,24 +1240,14 @@ golang.org/x/tools v0.0.0-20200204074204-1cc6d1ef6c74/go.mod h1:TB2adYChydJhpapK
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@@ -1147,19 +1265,16 @@ google.golang.org/api v0.14.0/go.mod h1:iLdEw5Ide6rF15KTC1Kkl0iskquN2gFfn9o9XIsb
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@@ -1180,23 +1295,14 @@ google.golang.org/genproto v0.0.0-20200122232147-0452cf42e150/go.mod h1:n3cpQtvx
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@@ -1209,16 +1315,14 @@ google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQ
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+google.golang.org/grpc v1.56.3/go.mod h1:I9bI3vqKfayGqPUAwGdOSu7kt6oIJLixfffKrpXqQ9s=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
@@ -1232,8 +1336,9 @@ google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlba
 google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
 google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
 google.golang.org/protobuf v1.27.1/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
-google.golang.org/protobuf v1.28.1 h1:d0NfwRgPtno5B1Wa6L2DAG+KivqkdutMf1UhdNx175w=
-google.golang.org/protobuf v1.28.1/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
+google.golang.org/protobuf v1.28.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
+google.golang.org/protobuf v1.30.0 h1:kPPoIgf3TsEvrm0PFe15JQ+570QVxYzEvvHqChK+cng=
+google.golang.org/protobuf v1.30.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
 gopkg.in/airbrake/gobrake.v2 v2.0.9/go.mod h1:/h5ZAUhDkGaJfjzjKLSjv6zCL6O0LLBxU4K+aSYdM/U=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
 gopkg.in/alexcesaro/statsd.v2 v2.0.0 h1:FXkZSCZIH17vLCO5sO2UucTHsH9pc+17F6pl3JVCwMc=
@@ -1268,6 +1373,9 @@ gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20200605160147-a5ece683394c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.0/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
@@ -1282,7 +1390,6 @@ honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWh
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
 honnef.co/go/tools v0.0.1-2020.1.3/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
-honnef.co/go/tools v0.0.1-2020.1.4/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
 k8s.io/api v0.20.1/go.mod h1:KqwcCVogGxQY3nBlRpwt+wpAMF/KjaCc7RpywacvqUo=
 k8s.io/api v0.20.4/go.mod h1:++lNL1AJMkDymriNniQsWRkMDzRaX2Y/POTUi8yvqYQ=
 k8s.io/api v0.20.6/go.mod h1:X9e8Qag6JV/bL5G6bU8sdVRltWKmdHsFUGS3eVndqE8=

hack/make.sh

@@ -34,7 +34,7 @@ if [[ "$SKOPEO_CONTAINER_TESTS" == "0" ]] && [[ "$CI" != "true" ]]; then
     echo "         the Makefile targets WITHOUT the '-local' suffix."
     echo "***************************************************************"
     ) > /dev/stderr
-    sleep 5s
+    sleep 5
 fi
 
 echo

hack/make/test-system

@@ -5,16 +5,36 @@ set -e
 # not all storage drivers are supported in a container
 # environment.  Detect this and setup storage when
 # running in a container.
-if ((SKOPEO_CONTAINER_TESTS)) && [[ -r /etc/containers/storage.conf ]]; then
-    sed -i \
-        -e 's/^driver\s*=.*/driver = "vfs"/' \
-        -e 's/^mountopt/#mountopt/' \
-        /etc/containers/storage.conf
-elif ((SKOPEO_CONTAINER_TESTS)); then
-    cat >> /etc/containers/storage.conf << EOF
+#
+# Paradoxically (FIXME: clean this up), SKOPEO_CONTAINER_TESTS is set
+# both inside a container and without a container (in a CI VM); it actually means
+# "it is safe to desctructively modify the system for tests".
+#
+# On a CI VM, we can just use Podman as it is already configured; the changes below,
+# to use VFS, are necessary only inside a container, because overlay-inside-overlay
+# does not work. So, make these changes conditional on both
+# SKOPEO_CONTAINER_TESTS (for acceptability to do destructive modification) and !CI
+# (for necessity to adjust for in-container operation)
+if ((SKOPEO_CONTAINER_TESTS)) && [[ "$CI" != true ]]; then
+    if [[ -r /etc/containers/storage.conf ]]; then
+        echo "MODIFYING existing storage.conf"
+        sed -i \
+            -e 's/^driver\s*=.*/driver = "vfs"/' \
+            -e 's/^mountopt/#mountopt/' \
+            /etc/containers/storage.conf
+    else
+        echo "CREATING NEW storage.conf"
+        cat >> /etc/containers/storage.conf << EOF
 [storage]
 driver = "vfs"
+runroot = "/run/containers/storage"
+graphroot = "/var/lib/containers/storage"
 EOF
+    fi
+    # The logic of finding the relevant storage.conf file is convoluted
+    # and in effect differs between Skopeo and Podman, at least in some versions;
+    # explicitly point at the file we want to use to hopefully avoid that.
+    export CONTAINERS_STORAGE_CONF=/etc/containers/storage.conf
 fi
 
 # Build skopeo, install into /usr/bin

integration/check_test.go

@@ -49,25 +49,25 @@ func (s *SkopeoSuite) TearDownSuite(c *check.C) {
 //func skopeoCmd()
 
 func (s *SkopeoSuite) TestVersion(c *check.C) {
-	wanted := fmt.Sprintf(".*%s version %s.*", skopeoBinary, version.Version)
-	assertSkopeoSucceeds(c, wanted, "--version")
+	assertSkopeoSucceeds(c, fmt.Sprintf(".*%s version %s.*", skopeoBinary, version.Version),
+		"--version")
 }
 
 func (s *SkopeoSuite) TestCanAuthToPrivateRegistryV2WithoutDockerCfg(c *check.C) {
-	wanted := ".*manifest unknown: manifest unknown.*"
-	assertSkopeoFails(c, wanted, "--tls-verify=false", "inspect", "--creds="+s.regV2WithAuth.username+":"+s.regV2WithAuth.password, fmt.Sprintf("docker://%s/busybox:latest", s.regV2WithAuth.url))
+	assertSkopeoFails(c, ".*manifest unknown.*",
+		"--tls-verify=false", "inspect", "--creds="+s.regV2WithAuth.username+":"+s.regV2WithAuth.password, fmt.Sprintf("docker://%s/busybox:latest", s.regV2WithAuth.url))
 }
 
 func (s *SkopeoSuite) TestNeedAuthToPrivateRegistryV2WithoutDockerCfg(c *check.C) {
-	wanted := ".*unauthorized: authentication required.*"
-	assertSkopeoFails(c, wanted, "--tls-verify=false", "inspect", fmt.Sprintf("docker://%s/busybox:latest", s.regV2WithAuth.url))
+	assertSkopeoFails(c, ".*authentication required.*",
+		"--tls-verify=false", "inspect", fmt.Sprintf("docker://%s/busybox:latest", s.regV2WithAuth.url))
 }
 
 func (s *SkopeoSuite) TestCertDirInsteadOfCertPath(c *check.C) {
-	wanted := ".*unknown flag: --cert-path.*"
-	assertSkopeoFails(c, wanted, "--tls-verify=false", "inspect", fmt.Sprintf("docker://%s/busybox:latest", s.regV2WithAuth.url), "--cert-path=/")
-	wanted = ".*unauthorized: authentication required.*"
-	assertSkopeoFails(c, wanted, "--tls-verify=false", "inspect", fmt.Sprintf("docker://%s/busybox:latest", s.regV2WithAuth.url), "--cert-dir=/etc/docker/certs.d/")
+	assertSkopeoFails(c, ".*unknown flag: --cert-path.*",
+		"--tls-verify=false", "inspect", fmt.Sprintf("docker://%s/busybox:latest", s.regV2WithAuth.url), "--cert-path=/")
+	assertSkopeoFails(c, ".*authentication required.*",
+		"--tls-verify=false", "inspect", fmt.Sprintf("docker://%s/busybox:latest", s.regV2WithAuth.url), "--cert-dir=/etc/docker/certs.d/")
 }
 
 // TODO(runcom): as soon as we can push to registries ensure you can inspect here
@@ -75,10 +75,8 @@ func (s *SkopeoSuite) TestCertDirInsteadOfCertPath(c *check.C) {
 func (s *SkopeoSuite) TestNoNeedAuthToPrivateRegistryV2ImageNotFound(c *check.C) {
 	out, err := exec.Command(skopeoBinary, "--tls-verify=false", "inspect", fmt.Sprintf("docker://%s/busybox:latest", s.regV2.url)).CombinedOutput()
 	c.Assert(err, check.NotNil, check.Commentf(string(out)))
-	wanted := ".*manifest unknown.*"
-	c.Assert(string(out), check.Matches, "(?s)"+wanted) // (?s) : '.' will also match newlines
-	wanted = ".*unauthorized: authentication required.*"
-	c.Assert(string(out), check.Not(check.Matches), "(?s)"+wanted) // (?s) : '.' will also match newlines
+	c.Assert(string(out), check.Matches, "(?s).*manifest unknown.*")                                 // (?s) : '.' will also match newlines
+	c.Assert(string(out), check.Not(check.Matches), "(?s).*unauthorized: authentication required.*") // (?s) : '.' will also match newlines
 }
 
 func (s *SkopeoSuite) TestInspectFailsWhenReferenceIsInvalid(c *check.C) {
@@ -86,28 +84,28 @@ func (s *SkopeoSuite) TestInspectFailsWhenReferenceIsInvalid(c *check.C) {
 }
 
 func (s *SkopeoSuite) TestLoginLogout(c *check.C) {
-	wanted := "^Login Succeeded!\n$"
-	assertSkopeoSucceeds(c, wanted, "login", "--tls-verify=false", "--username="+s.regV2WithAuth.username, "--password="+s.regV2WithAuth.password, s.regV2WithAuth.url)
+	assertSkopeoSucceeds(c, "^Login Succeeded!\n$",
+		"login", "--tls-verify=false", "--username="+s.regV2WithAuth.username, "--password="+s.regV2WithAuth.password, s.regV2WithAuth.url)
 	// test --get-login returns username
-	wanted = fmt.Sprintf("^%s\n$", s.regV2WithAuth.username)
-	assertSkopeoSucceeds(c, wanted, "login", "--tls-verify=false", "--get-login", s.regV2WithAuth.url)
+	assertSkopeoSucceeds(c, fmt.Sprintf("^%s\n$", s.regV2WithAuth.username),
+		"login", "--tls-verify=false", "--get-login", s.regV2WithAuth.url)
 	// test logout
-	wanted = fmt.Sprintf("^Removed login credentials for %s\n$", s.regV2WithAuth.url)
-	assertSkopeoSucceeds(c, wanted, "logout", s.regV2WithAuth.url)
+	assertSkopeoSucceeds(c, fmt.Sprintf("^Removed login credentials for %s\n$", s.regV2WithAuth.url),
+		"logout", s.regV2WithAuth.url)
 }
 
 func (s *SkopeoSuite) TestCopyWithLocalAuth(c *check.C) {
-	wanted := "^Login Succeeded!\n$"
-	assertSkopeoSucceeds(c, wanted, "login", "--tls-verify=false", "--username="+s.regV2WithAuth.username, "--password="+s.regV2WithAuth.password, s.regV2WithAuth.url)
+	assertSkopeoSucceeds(c, "^Login Succeeded!\n$",
+		"login", "--tls-verify=false", "--username="+s.regV2WithAuth.username, "--password="+s.regV2WithAuth.password, s.regV2WithAuth.url)
 	// copy to private registry using local authentication
 	imageName := fmt.Sprintf("docker://%s/busybox:mine", s.regV2WithAuth.url)
 	assertSkopeoSucceeds(c, "", "copy", "--dest-tls-verify=false", testFQIN+":latest", imageName)
 	// inspect from private registry
 	assertSkopeoSucceeds(c, "", "inspect", "--tls-verify=false", imageName)
 	// logout from the registry
-	wanted = fmt.Sprintf("^Removed login credentials for %s\n$", s.regV2WithAuth.url)
-	assertSkopeoSucceeds(c, wanted, "logout", s.regV2WithAuth.url)
+	assertSkopeoSucceeds(c, fmt.Sprintf("^Removed login credentials for %s\n$", s.regV2WithAuth.url),
+		"logout", s.regV2WithAuth.url)
 	// inspect from private registry should fail after logout
-	wanted = ".*unauthorized: authentication required.*"
-	assertSkopeoFails(c, wanted, "inspect", "--tls-verify=false", imageName)
+	assertSkopeoFails(c, ".*authentication required.*",
+		"inspect", "--tls-verify=false", imageName)
 }

integration/copy_test.go

@@ -448,7 +448,7 @@ func (s *CopySuite) TestCopySimple(c *check.C) {
 
 	// FIXME: It would be nice to use one of the local Docker registries instead of needing an Internet connection.
 	// "pull": docker: → dir:
-	assertSkopeoSucceeds(c, "", "copy", "docker://k8s.gcr.io/pause", "dir:"+dir1)
+	assertSkopeoSucceeds(c, "", "copy", "docker://registry.k8s.io/pause", "dir:"+dir1)
 	// "push": dir: → docker(v2s2):
 	assertSkopeoSucceeds(c, "", "--tls-verify=false", "--debug", "copy", "dir:"+dir1, ourRegistry+"pause:unsigned")
 	// The result of pushing and pulling is an unmodified image.
@@ -462,14 +462,14 @@ func (s *CopySuite) TestCopySimple(c *check.C) {
 	ociDest := "pause-latest-image"
 	ociImgName := "pause"
 	defer os.RemoveAll(ociDest)
-	assertSkopeoSucceeds(c, "", "copy", "docker://k8s.gcr.io/pause:latest", "oci:"+ociDest+":"+ociImgName)
+	assertSkopeoSucceeds(c, "", "copy", "docker://registry.k8s.io/pause:latest", "oci:"+ociDest+":"+ociImgName)
 	_, err := os.Stat(ociDest)
 	c.Assert(err, check.IsNil)
 
 	// docker v2s2 -> OCI image layout without image name
 	ociDest = "pause-latest-noimage"
 	defer os.RemoveAll(ociDest)
-	assertSkopeoSucceeds(c, "", "copy", "docker://k8s.gcr.io/pause:latest", "oci:"+ociDest)
+	assertSkopeoSucceeds(c, "", "copy", "docker://registry.k8s.io/pause:latest", "oci:"+ociDest)
 	_, err = os.Stat(ociDest)
 	c.Assert(err, check.IsNil)
 }
@@ -1037,7 +1037,8 @@ func (s *CopySuite) TestCopyVerifyingMirroredSignatures(c *check.C) {
 	assertSkopeoSucceeds(c, "", "--policy", policy, "--registries.d", registriesDir, "--registries-conf", "fixtures/registries.conf", "copy", "--src-tls-verify=false", regPrefix+"remap:remapped", dirDest)
 	// To be extra clear about the semantics, verify that the signedPrefix (primary) location never exists
 	// and only the remapped prefix (mirror) is accessed.
-	assertSkopeoFails(c, ".*initializing source docker://localhost:5006/myns/mirroring-primary:remapped:.*manifest unknown: manifest unknown.*", "--policy", policy, "--registries.d", registriesDir, "--registries-conf", "fixtures/registries.conf", "copy", "--src-tls-verify=false", regPrefix+"primary:remapped", dirDest)
+	assertSkopeoFails(c, ".*initializing source docker://localhost:5006/myns/mirroring-primary:remapped:.*manifest unknown.*",
+		"--policy", policy, "--registries.d", registriesDir, "--registries-conf", "fixtures/registries.conf", "copy", "--src-tls-verify=false", regPrefix+"primary:remapped", dirDest)
 }
 
 func (s *SkopeoSuite) TestCopySrcWithAuth(c *check.C) {

integration/openshift.go

@@ -11,7 +11,7 @@ import (
 	"strings"
 	"time"
 
-	"github.com/docker/docker/pkg/homedir"
+	"github.com/containers/storage/pkg/homedir"
 	"gopkg.in/check.v1"
 )
 

integration/openshift_shell_test.go

@@ -15,11 +15,15 @@ TestRunShell is not really a test; it is a convenient way to use the registry se
 in openshift.go and CopySuite to get an interactive environment for experimentation.
 
 To use it, run:
+
 	sudo make shell
+
 to start a container, then within the container:
+
 	SKOPEO_CONTAINER_TESTS=1 PS1='nested> ' go test -tags openshift_shell -timeout=24h ./integration -v -check.v -check.vv -check.f='CopySuite.TestRunShell'
 
 An example of what can be done within the container:
+
 	cd ..; make bin/skopeo PREFIX=/usr install
 	./skopeo --tls-verify=false  copy --sign-by=personal@example.com docker://quay.io/libpod/busybox:latest atomic:localhost:5000/myns/personal:personal
 	oc get istag personal:personal -o json

integration/proxy_test.go

@@ -20,6 +20,9 @@ import (
 // This image is known to be x86_64 only right now
 const knownNotManifestListedImage_x8664 = "docker://quay.io/coreos/11bot"
 
+// knownNotExtantImage would be very surprising if it did exist
+const knownNotExtantImage = "docker://quay.io/centos/centos:opensusewindowsubuntu"
+
 const expectedProxySemverMajor = "0.2"
 
 // request is copied from proxy.go
@@ -240,6 +243,29 @@ func runTestGetManifestAndConfig(p *proxy, img string) error {
 		return fmt.Errorf("OpenImage return value is %T", v)
 	}
 	imgid := uint32(imgidv)
+	if imgid == 0 {
+		return fmt.Errorf("got zero from expected image")
+	}
+
+	// Also verify the optional path
+	v, err = p.callNoFd("OpenImageOptional", []interface{}{knownNotManifestListedImage_x8664})
+	if err != nil {
+		return err
+	}
+
+	imgidv, ok = v.(float64)
+	if !ok {
+		return fmt.Errorf("OpenImageOptional return value is %T", v)
+	}
+	imgid2 := uint32(imgidv)
+	if imgid2 == 0 {
+		return fmt.Errorf("got zero from expected image")
+	}
+
+	_, err = p.callNoFd("CloseImage", []interface{}{imgid2})
+	if err != nil {
+		return err
+	}
 
 	_, manifestBytes, err := p.callReadAllBytes("GetManifest", []interface{}{imgid})
 	if err != nil {
@@ -292,6 +318,23 @@ func runTestGetManifestAndConfig(p *proxy, img string) error {
 	return nil
 }
 
+func runTestOpenImageOptionalNotFound(p *proxy, img string) error {
+	v, err := p.callNoFd("OpenImageOptional", []interface{}{img})
+	if err != nil {
+		return err
+	}
+
+	imgidv, ok := v.(float64)
+	if !ok {
+		return fmt.Errorf("OpenImageOptional return value is %T", v)
+	}
+	imgid := uint32(imgidv)
+	if imgid != 0 {
+		return fmt.Errorf("Unexpected optional image id %v", imgid)
+	}
+	return nil
+}
+
 func (s *ProxySuite) TestProxy(c *check.C) {
 	p, err := newProxy()
 	c.Assert(err, check.IsNil)
@@ -307,4 +350,10 @@ func (s *ProxySuite) TestProxy(c *check.C) {
 		err = fmt.Errorf("Testing image %s: %v", knownListImage, err)
 	}
 	c.Assert(err, check.IsNil)
+
+	err = runTestOpenImageOptionalNotFound(p, knownNotExtantImage)
+	if err != nil {
+		err = fmt.Errorf("Testing optional image %s: %v", knownNotExtantImage, err)
+	}
+	c.Assert(err, check.IsNil)
 }

integration/registry.go

@@ -116,6 +116,7 @@ func (t *testRegistryV2) Ping() error {
 	if err != nil {
 		return err
 	}
+	defer resp.Body.Close()
 	if resp.StatusCode != http.StatusOK && resp.StatusCode != http.StatusUnauthorized {
 		return fmt.Errorf("registry ping replied with an unexpected status code %d", resp.StatusCode)
 	}

integration/sync_test.go

@@ -22,15 +22,15 @@ const (
 	// A repository with a path with multiple components in it which
 	// contains multiple tags, preferably with some tags pointing to
 	// manifest lists, and with some tags that don't.
-	pullableRepo = "k8s.gcr.io/coredns/coredns"
+	pullableRepo = "registry.k8s.io/coredns/coredns"
 	// A tagged image in the repository that we can inspect and copy.
-	pullableTaggedImage = "k8s.gcr.io/coredns/coredns:v1.6.6"
+	pullableTaggedImage = "registry.k8s.io/coredns/coredns:v1.6.6"
 	// A tagged manifest list in the repository that we can inspect and copy.
-	pullableTaggedManifestList = "k8s.gcr.io/coredns/coredns:v1.8.0"
+	pullableTaggedManifestList = "registry.k8s.io/coredns/coredns:v1.8.0"
 	// A repository containing multiple tags, some of which are for
 	// manifest lists, and which includes a "latest" tag.  We specify the
 	// name here without a tag.
-	pullableRepoWithLatestTag = "k8s.gcr.io/pause"
+	pullableRepoWithLatestTag = "registry.k8s.io/pause"
 )
 
 func init() {
@@ -305,7 +305,7 @@ func (s *SyncSuite) TestYamlRegex2Dir(c *check.C) {
 	dir1 := path.Join(tmpDir, "dir1")
 
 	yamlConfig := `
-k8s.gcr.io:
+registry.k8s.io:
   images-by-tag-regex:
     pause: ^[12]\.0$  # regex string test
 `
@@ -325,7 +325,7 @@ func (s *SyncSuite) TestYamlDigest2Dir(c *check.C) {
 	dir1 := path.Join(tmpDir, "dir1")
 
 	yamlConfig := `
-k8s.gcr.io:
+registry.k8s.io:
   images:
     pause:
     - sha256:59eec8837a4d942cc19a52b8c09ea75121acc38114a2c68b98983ce9356b8610
@@ -342,7 +342,7 @@ func (s *SyncSuite) TestYaml2Dir(c *check.C) {
 	dir1 := path.Join(tmpDir, "dir1")
 
 	yamlConfig := `
-k8s.gcr.io:
+registry.k8s.io:
   images:
     coredns/coredns:
       - v1.8.0
@@ -534,7 +534,7 @@ func (s *SyncSuite) TestFailsNoSourceImages(c *check.C) {
 	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 .*",
+	assertSkopeoFails(c, ".*Error determining repository tags for repo docker.io/library/hopefully_no_images_will_ever_be_called_like_this: fetching tags list: requested access to the resource is denied.*",
 		"sync", "--scoped", "--dest-tls-verify=false", "--src", "docker", "--dest", "docker", "hopefully_no_images_will_ever_be_called_like_this", v2DockerRegistryURL)
 }
 
@@ -544,11 +544,11 @@ func (s *SyncSuite) TestFailsWithDockerSourceNoRegistry(c *check.C) {
 	tmpDir := c.MkDir()
 
 	//untagged
-	assertSkopeoFails(c, ".*invalid status code from registry 404.*",
+	assertSkopeoFails(c, ".*StatusCode: 404.*",
 		"sync", "--scoped", "--src", "docker", "--dest", "dir", regURL, tmpDir)
 
 	//tagged
-	assertSkopeoFails(c, ".*invalid status code from registry 404.*",
+	assertSkopeoFails(c, ".*StatusCode: 404.*",
 		"sync", "--scoped", "--src", "docker", "--dest", "dir", regURL+":thetag", tmpDir)
 }
 
@@ -557,11 +557,11 @@ func (s *SyncSuite) TestFailsWithDockerSourceUnauthorized(c *check.C) {
 	tmpDir := c.MkDir()
 
 	//untagged
-	assertSkopeoFails(c, ".*Registry disallows tag list retrieval.*",
+	assertSkopeoFails(c, ".*requested access to the resource is denied.*",
 		"sync", "--scoped", "--src", "docker", "--dest", "dir", repo, tmpDir)
 
 	//tagged
-	assertSkopeoFails(c, ".*unauthorized: authentication required.*",
+	assertSkopeoFails(c, ".*requested access to the resource is denied.*",
 		"sync", "--scoped", "--src", "docker", "--dest", "dir", repo+":thetag", tmpDir)
 }
 
@@ -570,7 +570,7 @@ func (s *SyncSuite) TestFailsWithDockerSourceNotExisting(c *check.C) {
 	tmpDir := c.MkDir()
 
 	//untagged
-	assertSkopeoFails(c, ".*invalid status code from registry 404.*",
+	assertSkopeoFails(c, ".*repository name not known to registry.*",
 		"sync", "--scoped", "--src-tls-verify=false", "--src", "docker", "--dest", "dir", repo, tmpDir)
 
 	//tagged

integration/utils.go

@@ -19,7 +19,7 @@ const decompressDirsBinary = "./decompress-dirs.sh"
 
 const testFQIN = "docker://quay.io/libpod/busybox" // tag left off on purpose, some tests need to add a special one
 const testFQIN64 = "docker://quay.io/libpod/busybox:amd64"
-const testFQINMultiLayer = "docker://quay.io/libpod/alpine_nginx:master" // multi-layer
+const testFQINMultiLayer = "docker://quay.io/libpod/alpine_nginx:latest" // multi-layer
 
 // 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) {

systemtest/010-inspect.bats

@@ -95,10 +95,11 @@ END_EXPECT
     # is created by the make-noarch-manifest script in this directory.
     img=docker://quay.io/libpod/notmyarch:20210121
 
-    # Get our host arch (what we're running on). This assumes that skopeo
-    # arch matches podman; it also assumes running podman >= April 2020
-    # (prior to that, the format keys were lower-case).
-    arch=$(podman info --format '{{.Host.Arch}}')
+    # Get our host golang arch (what we're running on, according to golang).
+    # This assumes that skopeo arch matches host arch (which it always should).
+    # Buildah is used here because it depends less on the exact system config
+    # than podman - and all we're really after is the golang-flavored arch name.
+    arch=$(go env GOARCH)
 
     # By default, 'inspect' tries to match our host os+arch. This should fail.
     run_skopeo 1 inspect $img

systemtest/020-copy.bats

@@ -50,7 +50,7 @@ function setup() {
 
     local dir=$TESTDIR/dir
 
-    run_skopeo copy --dest-compress --dest-compress-format=zstd $remote_image oci:$dir:latest
+    run_skopeo copy --dest-compress-format=zstd $remote_image oci:$dir:latest
 
     # zstd magic number
     local magic=$(printf "\x28\xb5\x2f\xfd")

systemtest/040-local-registry-auth.bats

@@ -8,38 +8,40 @@ 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 --enable-delete=true reg
+
+    _cred_dir=$TESTDIR/credentials
+    # It is important to change XDG_RUNTIME_DIR only after we start the registry, otherwise it affects the path of $XDG_RUNTIME_DIR/netns maintained by Podman,
+    # making it imposible to clean up after ourselves.
+    export XDG_RUNTIME_DIR=$_cred_dir
+    mkdir -p $_cred_dir/containers
+    # Remove old/stale cred file
+    rm -f $_cred_dir/containers/auth.json
 }
 
 @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"
+    expect_output --substring "authentication required"
 
     # Wrong user
     run_skopeo 1 inspect --tls-verify=false --creds=baduser:badpassword \
                docker://localhost:5000/nonesuch
-    expect_output --substring "unauthorized: authentication required"
+    expect_output --substring "authentication required"
 
     # Wrong password
     run_skopeo 1 inspect --tls-verify=false --creds=$testuser:badpassword \
                docker://localhost:5000/nonesuch
-    expect_output --substring "unauthorized: authentication required"
+    expect_output --substring "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"
+    expect_output --substring "manifest unknown"
 
     # These should pass
     run_skopeo copy --dest-tls-verify=false --dcreds=$testuser:$testpassword \
@@ -64,7 +66,7 @@ function setup() {
     podman logout localhost:5000
 
     run_skopeo 1 inspect --tls-verify=false docker://localhost:5000/busybox:mine
-    expect_output --substring "unauthorized: authentication required"
+    expect_output --substring "authentication required"
 }
 
 @test "auth: copy with --src-creds and --dest-creds" {
@@ -94,7 +96,7 @@ function setup() {
 
     # inspect without authfile: should fail
     run_skopeo 1 inspect --tls-verify=false docker://localhost:5000/busybox:mine
-    expect_output --substring "unauthorized: authentication required"
+    expect_output --substring "authentication required"
 
     # inspect with authfile: should work
     run_skopeo inspect --tls-verify=false --authfile $TESTDIR/test.auth docker://localhost:5000/busybox:mine

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

@@ -21,7 +21,9 @@ type Unmarshaler interface {
 	UnmarshalTOML(interface{}) error
 }
 
-// Unmarshal decodes the contents of `data` in TOML format into a pointer `v`.
+// Unmarshal decodes the contents of data in TOML format into a pointer v.
+//
+// See [Decoder] for a description of the decoding process.
 func Unmarshal(data []byte, v interface{}) error {
 	_, err := NewDecoder(bytes.NewReader(data)).Decode(v)
 	return err
@@ -29,13 +31,12 @@ func Unmarshal(data []byte, v interface{}) error {
 
 // Decode the TOML data in to the pointer v.
 //
-// See the documentation on Decoder for a description of the decoding process.
+// See [Decoder] for a description of the decoding process.
 func Decode(data string, v interface{}) (MetaData, error) {
 	return NewDecoder(strings.NewReader(data)).Decode(v)
 }
 
-// DecodeFile is just like Decode, except it will automatically read the
-// contents of the file at path and decode it for you.
+// DecodeFile reads the contents of a file and decodes it with [Decode].
 func DecodeFile(path string, v interface{}) (MetaData, error) {
 	fp, err := os.Open(path)
 	if err != nil {
@@ -48,7 +49,7 @@ func DecodeFile(path string, v interface{}) (MetaData, error) {
 // Primitive is a TOML value that hasn't been decoded into a Go value.
 //
 // This type can be used for any value, which will cause decoding to be delayed.
-// You can use the PrimitiveDecode() function to "manually" decode these values.
+// You can use [PrimitiveDecode] to "manually" decode these values.
 //
 // NOTE: The underlying representation of a `Primitive` value is subject to
 // change. Do not rely on it.
@@ -70,15 +71,15 @@ const (
 
 // Decoder decodes TOML data.
 //
-// TOML tables correspond to Go structs or maps (dealer's choice – they can be
-// used interchangeably).
+// TOML tables correspond to Go structs or maps; they can be used
+// interchangeably, but structs offer better type safety.
 //
 // TOML table arrays correspond to either a slice of structs or a slice of maps.
 //
-// TOML datetimes correspond to Go time.Time values. Local datetimes are parsed
-// in the local timezone.
+// TOML datetimes correspond to [time.Time]. Local datetimes are parsed in the
+// local timezone.
 //
-// time.Duration types are treated as nanoseconds if the TOML value is an
+// [time.Duration] types are treated as nanoseconds if the TOML value is an
 // integer, or they're parsed with time.ParseDuration() if they're strings.
 //
 // All other TOML types (float, string, int, bool and array) correspond to the
@@ -90,7 +91,7 @@ const (
 // UnmarshalText method. See the Unmarshaler example for a demonstration with
 // email addresses.
 //
-// Key mapping
+// ### Key mapping
 //
 // TOML keys can map to either keys in a Go map or field names in a Go struct.
 // The special `toml` struct tag can be used to map TOML keys to struct fields
@@ -168,17 +169,16 @@ func (dec *Decoder) Decode(v interface{}) (MetaData, error) {
 	return md, md.unify(p.mapping, rv)
 }
 
-// PrimitiveDecode is just like the other `Decode*` functions, except it
-// decodes a TOML value that has already been parsed. Valid primitive values
-// can *only* be obtained from values filled by the decoder functions,
-// including this method. (i.e., `v` may contain more `Primitive`
-// values.)
+// PrimitiveDecode is just like the other Decode* functions, except it decodes a
+// TOML value that has already been parsed. Valid primitive values can *only* be
+// obtained from values filled by the decoder functions, including this method.
+// (i.e., v may contain more [Primitive] values.)
 //
-// Meta data for primitive values is included in the meta data returned by
-// the `Decode*` functions with one exception: keys returned by the Undecoded
-// method will only reflect keys that were decoded. Namely, any keys hidden
-// behind a Primitive will be considered undecoded. Executing this method will
-// update the undecoded keys in the meta data. (See the example.)
+// Meta data for primitive values is included in the meta data returned by the
+// Decode* functions with one exception: keys returned by the Undecoded method
+// will only reflect keys that were decoded. Namely, any keys hidden behind a
+// Primitive will be considered undecoded. Executing this method will update the
+// undecoded keys in the meta data. (See the example.)
 func (md *MetaData) PrimitiveDecode(primValue Primitive, v interface{}) error {
 	md.context = primValue.context
 	defer func() { md.context = nil }()

vendor/github.com/BurntSushi/toml/decode_go116.go

@@ -7,8 +7,8 @@ import (
 	"io/fs"
 )
 
-// DecodeFS is just like Decode, except it will automatically read the contents
-// of the file at `path` from a fs.FS instance.
+// DecodeFS reads the contents of a file from [fs.FS] and decodes it with
+// [Decode].
 func DecodeFS(fsys fs.FS, path string, v interface{}) (MetaData, error) {
 	fp, err := fsys.Open(path)
 	if err != nil {

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

@@ -1,13 +1,11 @@
-/*
-Package toml implements decoding and encoding of TOML files.
-
-This package supports TOML v1.0.0, as listed on https://toml.io
-
-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 github.com/BurntSushi/toml/cmd/tomlv package implements a TOML validator,
-and can be used to verify if TOML document is valid. It can also be used to
-print the type of each key.
-*/
+// Package toml implements decoding and encoding of TOML files.
+//
+// This package supports TOML v1.0.0, as specified at https://toml.io
+//
+// 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 github.com/BurntSushi/toml/cmd/tomlv package implements a TOML validator,
+// and can be used to verify if TOML document is valid. It can also be used to
+// print the type of each key.
 package toml

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

@@ -79,12 +79,12 @@ type Marshaler interface {
 // Encoder encodes a Go to a TOML document.
 //
 // The mapping between Go values and TOML values should be precisely the same as
-// for the Decode* functions.
+// for [Decode].
 //
 // time.Time is encoded as a RFC 3339 string, and time.Duration as its string
 // representation.
 //
-// The toml.Marshaler and encoder.TextMarshaler interfaces are supported to
+// The [Marshaler] and [encoding.TextMarshaler] interfaces are supported to
 // encoding the value as custom TOML.
 //
 // If you want to write arbitrary binary data then you will need to use
@@ -130,7 +130,7 @@ func NewEncoder(w io.Writer) *Encoder {
 	}
 }
 
-// Encode writes a TOML representation of the Go value to the Encoder's writer.
+// Encode writes a TOML representation of the Go value to the [Encoder]'s writer.
 //
 // An error is returned if the value given cannot be encoded to a valid TOML
 // document.
@@ -261,7 +261,7 @@ func (enc *Encoder) eElement(rv reflect.Value) {
 			enc.eElement(reflect.ValueOf(v))
 			return
 		}
-		encPanic(errors.New(fmt.Sprintf("Unable to convert \"%s\" to neither int64 nor float64", n)))
+		encPanic(fmt.Errorf("unable to convert %q to int64 or float64", n))
 	}
 
 	switch rv.Kind() {
@@ -504,7 +504,8 @@ func (enc *Encoder) eStruct(key Key, rv reflect.Value, inline bool) {
 			if opts.name != "" {
 				keyName = opts.name
 			}
-			if opts.omitempty && isEmpty(fieldVal) {
+
+			if opts.omitempty && enc.isEmpty(fieldVal) {
 				continue
 			}
 			if opts.omitzero && isZero(fieldVal) {
@@ -648,12 +649,26 @@ func isZero(rv reflect.Value) bool {
 	return false
 }
 
-func isEmpty(rv reflect.Value) bool {
+func (enc *Encoder) isEmpty(rv reflect.Value) bool {
 	switch rv.Kind() {
 	case reflect.Array, reflect.Slice, reflect.Map, reflect.String:
 		return rv.Len() == 0
 	case reflect.Struct:
-		return reflect.Zero(rv.Type()).Interface() == rv.Interface()
+		if rv.Type().Comparable() {
+			return reflect.Zero(rv.Type()).Interface() == rv.Interface()
+		}
+		// Need to also check if all the fields are empty, otherwise something
+		// like this with uncomparable types will always return true:
+		//
+		//   type a struct{ field b }
+		//   type b struct{ s []string }
+		//   s := a{field: b{s: []string{"AAA"}}}
+		for i := 0; i < rv.NumField(); i++ {
+			if !enc.isEmpty(rv.Field(i)) {
+				return false
+			}
+		}
+		return true
 	case reflect.Bool:
 		return !rv.Bool()
 	}
@@ -668,16 +683,15 @@ func (enc *Encoder) newline() {
 
 // Write a key/value pair:
 //
-//   key = <any value>
+//	key = <any value>
 //
 // This is also used for "k = v" in inline tables; so something like this will
 // be written in three calls:
 //
-//     ┌────────────────────┐
-//     │      ┌───┐  ┌─────┐│
-//     v      v   v  v     vv
-//     key = {k = v, k2 = v2}
-//
+//	┌───────────────────┐
+//	│      ┌───┐  ┌────┐│
+//	v      v   v  v    vv
+//	key = {k = 1, k2 = 2}
 func (enc *Encoder) writeKeyValue(key Key, val reflect.Value, inline bool) {
 	if len(key) == 0 {
 		encPanic(errNoKey)

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

@@ -5,57 +5,60 @@ import (
 	"strings"
 )
 
-// ParseError is returned when there is an error parsing the TOML syntax.
-//
-// For example invalid syntax, duplicate keys, etc.
+// ParseError is returned when there is an error parsing the TOML syntax such as
+// invalid syntax, duplicate keys, etc.
 //
 // In addition to the error message itself, you can also print detailed location
-// information with context by using ErrorWithPosition():
+// information with context by using [ErrorWithPosition]:
 //
-//     toml: error: Key 'fruit' was already created and cannot be used as an array.
+//	toml: error: Key 'fruit' was already created and cannot be used as an array.
 //
-//     At line 4, column 2-7:
+//	At line 4, column 2-7:
 //
-//           2 | fruit = []
-//           3 |
-//           4 | [[fruit]] # Not allowed
-//                 ^^^^^
+//	      2 | fruit = []
+//	      3 |
+//	      4 | [[fruit]] # Not allowed
+//	            ^^^^^
 //
-// Furthermore, the ErrorWithUsage() can be used to print the above with some
-// more detailed usage guidance:
+// [ErrorWithUsage] can be used to print the above with some more detailed usage
+// guidance:
 //
-//    toml: error: newlines not allowed within inline tables
+//	toml: error: newlines not allowed within inline tables
 //
-//    At line 1, column 18:
+//	At line 1, column 18:
 //
-//          1 | x = [{ key = 42 #
-//                               ^
+//	      1 | x = [{ key = 42 #
+//	                           ^
 //
-//    Error help:
+//	Error help:
 //
-//      Inline tables must always be on a single line:
+//	  Inline tables must always be on a single line:
 //
-//          table = {key = 42, second = 43}
+//	      table = {key = 42, second = 43}
 //
-//      It is invalid to split them over multiple lines like so:
+//	  It is invalid to split them over multiple lines like so:
 //
-//          # INVALID
-//          table = {
-//              key    = 42,
-//              second = 43
-//          }
+//	      # INVALID
+//	      table = {
+//	          key    = 42,
+//	          second = 43
+//	      }
 //
-//      Use regular for this:
+//	  Use regular for this:
 //
-//          [table]
-//          key    = 42
-//          second = 43
+//	      [table]
+//	      key    = 42
+//	      second = 43
 type ParseError struct {
 	Message  string   // Short technical message.
 	Usage    string   // Longer message with usage guidance; may be blank.
 	Position Position // Position of the error
 	LastKey  string   // Last parsed key, may be blank.
-	Line     int      // Line the error occurred. Deprecated: use Position.
+
+	// Line the error occurred.
+	//
+	// Deprecated: use [Position].
+	Line int
 
 	err   error
 	input string
@@ -83,7 +86,7 @@ func (pe ParseError) Error() string {
 
 // ErrorWithUsage() returns the error with detailed location context.
 //
-// See the documentation on ParseError.
+// See the documentation on [ParseError].
 func (pe ParseError) ErrorWithPosition() string {
 	if pe.input == "" { // Should never happen, but just in case.
 		return pe.Error()
@@ -124,7 +127,7 @@ func (pe ParseError) ErrorWithPosition() string {
 // ErrorWithUsage() returns the error with detailed location context and usage
 // guidance.
 //
-// See the documentation on ParseError.
+// See the documentation on [ParseError].
 func (pe ParseError) ErrorWithUsage() string {
 	m := pe.ErrorWithPosition()
 	if u, ok := pe.err.(interface{ Usage() string }); ok && u.Usage() != "" {

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

@@ -771,7 +771,7 @@ 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()

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

@@ -71,7 +71,7 @@ func (md *MetaData) Keys() []Key {
 // Undecoded returns all keys that have not been decoded in the order in which
 // they appear in the original TOML document.
 //
-// This includes keys that haven't been decoded because of a Primitive value.
+// This includes keys that haven't been decoded because of a [Primitive] value.
 // Once the Primitive value is decoded, the keys will be considered decoded.
 //
 // Also note that decoding into an empty interface will result in no decoding,
@@ -89,7 +89,7 @@ func (md *MetaData) Undecoded() []Key {
 	return undecoded
 }
 
-// Key represents any TOML key, including key groups. Use (MetaData).Keys to get
+// Key represents any TOML key, including key groups. Use [MetaData.Keys] to get
 // values of this type.
 type Key []string
 

vendor/github.com/Microsoft/hcsshim/internal/cow/cow.go

@@ -86,6 +86,12 @@ type Container interface {
 	// container to be terminated by some error condition (including calling
 	// Close).
 	Wait() error
+	// WaitChannel returns the wait channel of the container
+	WaitChannel() <-chan struct{}
+	// WaitError returns the container termination error.
+	// This function should only be called after the channel in WaitChannel()
+	// is closed. Otherwise it is not thread safe.
+	WaitError() error
 	// Modify sends a request to modify container resources
 	Modify(ctx context.Context, config interface{}) error
 }

vendor/github.com/Microsoft/hcsshim/internal/hcs/errors.go

@@ -154,7 +154,7 @@ func (e *HcsError) Error() string {
 
 func (e *HcsError) Temporary() bool {
 	err, ok := e.Err.(net.Error)
-	return ok && err.Temporary()
+	return ok && err.Temporary() //nolint:staticcheck
 }
 
 func (e *HcsError) Timeout() bool {
@@ -193,7 +193,7 @@ func (e *SystemError) Error() string {
 
 func (e *SystemError) Temporary() bool {
 	err, ok := e.Err.(net.Error)
-	return ok && err.Temporary()
+	return ok && err.Temporary() //nolint:staticcheck
 }
 
 func (e *SystemError) Timeout() bool {
@@ -224,7 +224,7 @@ func (e *ProcessError) Error() string {
 
 func (e *ProcessError) Temporary() bool {
 	err, ok := e.Err.(net.Error)
-	return ok && err.Temporary()
+	return ok && err.Temporary() //nolint:staticcheck
 }
 
 func (e *ProcessError) Timeout() bool {

vendor/github.com/Microsoft/hcsshim/internal/hcs/system.go

@@ -287,11 +287,19 @@ func (computeSystem *System) waitBackground() {
 	oc.SetSpanStatus(span, err)
 }
 
+func (computeSystem *System) WaitChannel() <-chan struct{} {
+	return computeSystem.waitBlock
+}
+
+func (computeSystem *System) WaitError() error {
+	return computeSystem.waitError
+}
+
 // Wait synchronously waits for the compute system to shutdown or terminate. If
 // the compute system has already exited returns the previous error (if any).
 func (computeSystem *System) Wait() error {
-	<-computeSystem.waitBlock
-	return computeSystem.waitError
+	<-computeSystem.WaitChannel()
+	return computeSystem.WaitError()
 }
 
 // ExitError returns an error describing the reason the compute system terminated.

vendor/github.com/Microsoft/hcsshim/internal/jobobject/iocp.go

@@ -57,7 +57,7 @@ func pollIOCP(ctx context.Context, iocpHandle windows.Handle) {
 				}).Warn("failed to parse job object message")
 				continue
 			}
-			if err := msq.Write(notification); err == queue.ErrQueueClosed {
+			if err := msq.Enqueue(notification); err == queue.ErrQueueClosed {
 				// Write will only return an error when the queue is closed.
 				// The only time a queue would ever be closed is when we call `Close` on
 				// the job it belongs to which also removes it from the jobMap, so something

vendor/github.com/Microsoft/hcsshim/internal/jobobject/jobobject.go

@@ -68,6 +68,9 @@ type Options struct {
 	// `UseNTVariant` specifies if we should use the `Nt` variant of Open/CreateJobObject.
 	// Defaults to false.
 	UseNTVariant bool
+	// `IOTracking` enables tracking I/O statistics on the job object. More specifically this
+	// calls SetInformationJobObject with the JobObjectIoAttribution class.
+	EnableIOTracking bool
 }
 
 // Create creates a job object.
@@ -134,6 +137,12 @@ func Create(ctx context.Context, options *Options) (_ *JobObject, err error) {
 		job.mq = mq
 	}
 
+	if options.EnableIOTracking {
+		if err := enableIOTracking(jobHandle); err != nil {
+			return nil, err
+		}
+	}
+
 	return job, nil
 }
 
@@ -235,7 +244,7 @@ func (job *JobObject) PollNotification() (interface{}, error) {
 	if job.mq == nil {
 		return nil, ErrNotRegistered
 	}
-	return job.mq.ReadOrWait()
+	return job.mq.Dequeue()
 }
 
 // UpdateProcThreadAttribute updates the passed in ProcThreadAttributeList to contain what is necessary to
@@ -330,7 +339,7 @@ func (job *JobObject) Pids() ([]uint32, error) {
 	err := winapi.QueryInformationJobObject(
 		job.handle,
 		winapi.JobObjectBasicProcessIdList,
-		uintptr(unsafe.Pointer(&info)),
+		unsafe.Pointer(&info),
 		uint32(unsafe.Sizeof(info)),
 		nil,
 	)
@@ -356,7 +365,7 @@ func (job *JobObject) Pids() ([]uint32, error) {
 	if err = winapi.QueryInformationJobObject(
 		job.handle,
 		winapi.JobObjectBasicProcessIdList,
-		uintptr(unsafe.Pointer(&buf[0])),
+		unsafe.Pointer(&buf[0]),
 		uint32(len(buf)),
 		nil,
 	); err != nil {
@@ -384,7 +393,7 @@ func (job *JobObject) QueryMemoryStats() (*winapi.JOBOBJECT_MEMORY_USAGE_INFORMA
 	if err := winapi.QueryInformationJobObject(
 		job.handle,
 		winapi.JobObjectMemoryUsageInformation,
-		uintptr(unsafe.Pointer(&info)),
+		unsafe.Pointer(&info),
 		uint32(unsafe.Sizeof(info)),
 		nil,
 	); err != nil {
@@ -406,7 +415,7 @@ func (job *JobObject) QueryProcessorStats() (*winapi.JOBOBJECT_BASIC_ACCOUNTING_
 	if err := winapi.QueryInformationJobObject(
 		job.handle,
 		winapi.JobObjectBasicAccountingInformation,
-		uintptr(unsafe.Pointer(&info)),
+		unsafe.Pointer(&info),
 		uint32(unsafe.Sizeof(info)),
 		nil,
 	); err != nil {
@@ -415,7 +424,9 @@ func (job *JobObject) QueryProcessorStats() (*winapi.JOBOBJECT_BASIC_ACCOUNTING_
 	return &info, nil
 }
 
-// QueryStorageStats gets the storage (I/O) stats for the job object.
+// QueryStorageStats gets the storage (I/O) stats for the job object. This call will error
+// if either `EnableIOTracking` wasn't set to true on creation of the job, or SetIOTracking()
+// hasn't been called since creation of the job.
 func (job *JobObject) QueryStorageStats() (*winapi.JOBOBJECT_IO_ATTRIBUTION_INFORMATION, error) {
 	job.handleLock.RLock()
 	defer job.handleLock.RUnlock()
@@ -430,7 +441,7 @@ func (job *JobObject) QueryStorageStats() (*winapi.JOBOBJECT_IO_ATTRIBUTION_INFO
 	if err := winapi.QueryInformationJobObject(
 		job.handle,
 		winapi.JobObjectIoAttribution,
-		uintptr(unsafe.Pointer(&info)),
+		unsafe.Pointer(&info),
 		uint32(unsafe.Sizeof(info)),
 		nil,
 	); err != nil {
@@ -476,7 +487,7 @@ func (job *JobObject) QueryPrivateWorkingSet() (uint64, error) {
 		status := winapi.NtQueryInformationProcess(
 			h,
 			winapi.ProcessVmCounters,
-			uintptr(unsafe.Pointer(&vmCounters)),
+			unsafe.Pointer(&vmCounters),
 			uint32(unsafe.Sizeof(vmCounters)),
 			nil,
 		)
@@ -497,3 +508,31 @@ func (job *JobObject) QueryPrivateWorkingSet() (uint64, error) {
 
 	return jobWorkingSetSize, nil
 }
+
+// SetIOTracking enables IO tracking for processes in the job object.
+// This enables use of the QueryStorageStats method.
+func (job *JobObject) SetIOTracking() error {
+	job.handleLock.RLock()
+	defer job.handleLock.RUnlock()
+
+	if job.handle == 0 {
+		return ErrAlreadyClosed
+	}
+
+	return enableIOTracking(job.handle)
+}
+
+func enableIOTracking(job windows.Handle) error {
+	info := winapi.JOBOBJECT_IO_ATTRIBUTION_INFORMATION{
+		ControlFlags: winapi.JOBOBJECT_IO_ATTRIBUTION_CONTROL_ENABLE,
+	}
+	if _, err := windows.SetInformationJobObject(
+		job,
+		winapi.JobObjectIoAttribution,
+		uintptr(unsafe.Pointer(&info)),
+		uint32(unsafe.Sizeof(info)),
+	); err != nil {
+		return fmt.Errorf("failed to enable IO tracking on job object: %w", err)
+	}
+	return nil
+}

vendor/github.com/Microsoft/hcsshim/internal/jobobject/limits.go

@@ -202,7 +202,7 @@ func (job *JobObject) getExtendedInformation() (*windows.JOBOBJECT_EXTENDED_LIMI
 	if err := winapi.QueryInformationJobObject(
 		job.handle,
 		windows.JobObjectExtendedLimitInformation,
-		uintptr(unsafe.Pointer(&info)),
+		unsafe.Pointer(&info),
 		uint32(unsafe.Sizeof(info)),
 		nil,
 	); err != nil {
@@ -224,7 +224,7 @@ func (job *JobObject) getCPURateControlInformation() (*winapi.JOBOBJECT_CPU_RATE
 	if err := winapi.QueryInformationJobObject(
 		job.handle,
 		windows.JobObjectCpuRateControlInformation,
-		uintptr(unsafe.Pointer(&info)),
+		unsafe.Pointer(&info),
 		uint32(unsafe.Sizeof(info)),
 		nil,
 	); err != nil {

vendor/github.com/Microsoft/hcsshim/internal/queue/mq.go

@@ -5,10 +5,7 @@ import (
 	"sync"
 )
 
-var (
-	ErrQueueClosed = errors.New("the queue is closed for reading and writing")
-	ErrQueueEmpty  = errors.New("the queue is empty")
-)
+var ErrQueueClosed = errors.New("the queue is closed for reading and writing")
 
 // MessageQueue represents a threadsafe message queue to be used to retrieve or
 // write messages to.
@@ -29,8 +26,8 @@ func NewMessageQueue() *MessageQueue {
 	}
 }
 
-// Write writes `msg` to the queue.
-func (mq *MessageQueue) Write(msg interface{}) error {
+// Enqueue writes `msg` to the queue.
+func (mq *MessageQueue) Enqueue(msg interface{}) error {
 	mq.m.Lock()
 	defer mq.m.Unlock()
 
@@ -43,55 +40,37 @@ func (mq *MessageQueue) Write(msg interface{}) error {
 	return nil
 }
 
-// Read will read a value from the queue if available, otherwise return an error.
-func (mq *MessageQueue) Read() (interface{}, error) {
+// Dequeue will read a value from the queue and remove it. If the queue
+// is empty, this will block until the queue is closed or a value gets enqueued.
+func (mq *MessageQueue) Dequeue() (interface{}, error) {
 	mq.m.Lock()
 	defer mq.m.Unlock()
+
+	for !mq.closed && mq.size() == 0 {
+		mq.c.Wait()
+	}
+
+	// We got woken up, check if it's because the queue got closed.
 	if mq.closed {
 		return nil, ErrQueueClosed
 	}
-	if mq.isEmpty() {
-		return nil, ErrQueueEmpty
-	}
+
 	val := mq.messages[0]
 	mq.messages[0] = nil
 	mq.messages = mq.messages[1:]
 	return val, nil
 }
 
-// ReadOrWait will read a value from the queue if available, else it will wait for a
-// value to become available. This will block forever if nothing gets written or until
-// the queue gets closed.
-func (mq *MessageQueue) ReadOrWait() (interface{}, error) {
-	mq.m.Lock()
-	if mq.closed {
-		mq.m.Unlock()
-		return nil, ErrQueueClosed
-	}
-	if mq.isEmpty() {
-		for !mq.closed && mq.isEmpty() {
-			mq.c.Wait()
-		}
-		mq.m.Unlock()
-		return mq.Read()
-	}
-	val := mq.messages[0]
-	mq.messages[0] = nil
-	mq.messages = mq.messages[1:]
-	mq.m.Unlock()
-	return val, nil
-}
-
-// IsEmpty returns if the queue is empty
-func (mq *MessageQueue) IsEmpty() bool {
+// Size returns the size of the queue.
+func (mq *MessageQueue) Size() int {
 	mq.m.RLock()
 	defer mq.m.RUnlock()
-	return len(mq.messages) == 0
+	return mq.size()
 }
 
-// Nonexported empty check that doesn't lock so we can call this in Read and Write.
-func (mq *MessageQueue) isEmpty() bool {
-	return len(mq.messages) == 0
+// Nonexported size check to check if the queue is empty inside already locked functions.
+func (mq *MessageQueue) size() int {
+	return len(mq.messages)
 }
 
 // Close closes the queue for future writes or reads. Any attempts to read or write from the
@@ -99,13 +78,15 @@ func (mq *MessageQueue) isEmpty() bool {
 func (mq *MessageQueue) Close() {
 	mq.m.Lock()
 	defer mq.m.Unlock()
-	// Already closed
+
+	// Already closed, noop
 	if mq.closed {
 		return
 	}
+
 	mq.messages = nil
 	mq.closed = true
-	// If there's anybody currently waiting on a value from ReadOrWait, we need to
+	// If there's anybody currently waiting on a value from Dequeue, we need to
 	// broadcast so the read(s) can return ErrQueueClosed.
 	mq.c.Broadcast()
 }

vendor/github.com/Microsoft/hcsshim/internal/winapi/jobobject.go

@@ -175,7 +175,7 @@ type JOBOBJECT_ASSOCIATE_COMPLETION_PORT struct {
 //		LPDWORD            lpReturnLength
 // );
 //
-//sys QueryInformationJobObject(jobHandle windows.Handle, infoClass uint32, jobObjectInfo uintptr, jobObjectInformationLength uint32, lpReturnLength *uint32) (err error) = kernel32.QueryInformationJobObject
+//sys QueryInformationJobObject(jobHandle windows.Handle, infoClass uint32, jobObjectInfo unsafe.Pointer, jobObjectInformationLength uint32, lpReturnLength *uint32) (err error) = kernel32.QueryInformationJobObject
 
 // HANDLE OpenJobObjectW(
 //		DWORD   dwDesiredAccess,

vendor/github.com/Microsoft/hcsshim/internal/winapi/process.go

@@ -18,7 +18,7 @@ const ProcessVmCounters = 3
 // 	[out, optional] PULONG           ReturnLength
 // );
 //
-//sys NtQueryInformationProcess(processHandle windows.Handle, processInfoClass uint32, processInfo uintptr, processInfoLength uint32, returnLength *uint32) (status uint32) = ntdll.NtQueryInformationProcess
+//sys NtQueryInformationProcess(processHandle windows.Handle, processInfoClass uint32, processInfo unsafe.Pointer, processInfoLength uint32, returnLength *uint32) (status uint32) = ntdll.NtQueryInformationProcess
 
 // typedef struct _VM_COUNTERS_EX
 // {

vendor/github.com/Microsoft/hcsshim/internal/winapi/system.go

@@ -12,7 +12,8 @@ const STATUS_INFO_LENGTH_MISMATCH = 0xC0000004
 // 	ULONG                    SystemInformationLength,
 // 	PULONG                   ReturnLength
 // );
-//sys NtQuerySystemInformation(systemInfoClass int, systemInformation uintptr, systemInfoLength uint32, returnLength *uint32) (status uint32) = ntdll.NtQuerySystemInformation
+//
+//sys NtQuerySystemInformation(systemInfoClass int, systemInformation unsafe.Pointer, systemInfoLength uint32, returnLength *uint32) (status uint32) = ntdll.NtQuerySystemInformation
 
 type SYSTEM_PROCESS_INFORMATION struct {
 	NextEntryOffset              uint32         // ULONG

vendor/github.com/Microsoft/hcsshim/internal/winapi/zsyscall_windows.go

@@ -100,7 +100,7 @@ func resizePseudoConsole(hPc windows.Handle, size uint32) (hr error) {
 	return
 }
 
-func NtQuerySystemInformation(systemInfoClass int, systemInformation uintptr, systemInfoLength uint32, returnLength *uint32) (status uint32) {
+func NtQuerySystemInformation(systemInfoClass int, systemInformation unsafe.Pointer, systemInfoLength uint32, returnLength *uint32) (status uint32) {
 	r0, _, _ := syscall.Syscall6(procNtQuerySystemInformation.Addr(), 4, uintptr(systemInfoClass), uintptr(systemInformation), uintptr(systemInfoLength), uintptr(unsafe.Pointer(returnLength)), 0, 0)
 	status = uint32(r0)
 	return
@@ -152,7 +152,7 @@ func IsProcessInJob(procHandle windows.Handle, jobHandle windows.Handle, result
 	return
 }
 
-func QueryInformationJobObject(jobHandle windows.Handle, infoClass uint32, jobObjectInfo uintptr, jobObjectInformationLength uint32, lpReturnLength *uint32) (err error) {
+func QueryInformationJobObject(jobHandle windows.Handle, infoClass uint32, jobObjectInfo unsafe.Pointer, jobObjectInformationLength uint32, lpReturnLength *uint32) (err error) {
 	r1, _, e1 := syscall.Syscall6(procQueryInformationJobObject.Addr(), 5, uintptr(jobHandle), uintptr(infoClass), uintptr(jobObjectInfo), uintptr(jobObjectInformationLength), uintptr(unsafe.Pointer(lpReturnLength)), 0)
 	if r1 == 0 {
 		if e1 != 0 {
@@ -244,7 +244,7 @@ func LocalFree(ptr uintptr) {
 	return
 }
 
-func NtQueryInformationProcess(processHandle windows.Handle, processInfoClass uint32, processInfo uintptr, processInfoLength uint32, returnLength *uint32) (status uint32) {
+func NtQueryInformationProcess(processHandle windows.Handle, processInfoClass uint32, processInfo unsafe.Pointer, processInfoLength uint32, returnLength *uint32) (status uint32) {
 	r0, _, _ := syscall.Syscall6(procNtQueryInformationProcess.Addr(), 5, uintptr(processHandle), uintptr(processInfoClass), uintptr(processInfo), uintptr(processInfoLength), uintptr(unsafe.Pointer(returnLength)), 0)
 	status = uint32(r0)
 	return

vendor/github.com/asaskevich/govalidator/.gitignore

@@ -0,0 +1,15 @@
+bin/
+.idea/
+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+
+# Test binary, built with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+

vendor/github.com/asaskevich/govalidator/.travis.yml

@@ -0,0 +1,12 @@
+language: go
+dist: xenial
+go:
+  - '1.10'
+  - '1.11'
+  - '1.12'
+  - '1.13'
+  - 'tip'
+
+script:
+     - go test -coverpkg=./... -coverprofile=coverage.info -timeout=5s
+     - bash <(curl -s https://codecov.io/bash)

vendor/github.com/asaskevich/govalidator/CODE_OF_CONDUCT.md

@@ -0,0 +1,43 @@
+# Contributor Code of Conduct
+
+This project adheres to [The Code Manifesto](http://codemanifesto.com)
+as its guidelines for contributor interactions.
+
+## The Code Manifesto
+
+We want to work in an ecosystem that empowers developers to reach their
+potential — one that encourages growth and effective collaboration. A space
+that is safe for all.
+
+A space such as this benefits everyone that participates in it. It encourages
+new developers to enter our field. It is through discussion and collaboration
+that we grow, and through growth that we improve.
+
+In the effort to create such a place, we hold to these values:
+
+1. **Discrimination limits us.** This includes discrimination on the basis of
+   race, gender, sexual orientation, gender identity, age, nationality,
+   technology and any other arbitrary exclusion of a group of people.
+2. **Boundaries honor us.** Your comfort levels are not everyone’s comfort
+   levels. Remember that, and if brought to your attention, heed it.
+3. **We are our biggest assets.** None of us were born masters of our trade.
+   Each of us has been helped along the way. Return that favor, when and where
+   you can.
+4. **We are resources for the future.** As an extension of #3, share what you
+   know. Make yourself a resource to help those that come after you.
+5. **Respect defines us.** Treat others as you wish to be treated. Make your
+   discussions, criticisms and debates from a position of respectfulness. Ask
+   yourself, is it true? Is it necessary? Is it constructive? Anything less is
+   unacceptable.
+6. **Reactions require grace.** Angry responses are valid, but abusive language
+   and vindictive actions are toxic. When something happens that offends you,
+   handle it assertively, but be respectful. Escalate reasonably, and try to
+   allow the offender an opportunity to explain themselves, and possibly
+   correct the issue.
+7. **Opinions are just that: opinions.** Each and every one of us, due to our
+   background and upbringing, have varying opinions. That is perfectly
+   acceptable. Remember this: if you respect your own opinions, you should
+   respect the opinions of others.
+8. **To err is human.** You might not intend it, but mistakes do happen and
+   contribute to build experience. Tolerate honest mistakes, and don't
+   hesitate to apologize if you make one yourself.

vendor/github.com/asaskevich/govalidator/CONTRIBUTING.md

@@ -0,0 +1,63 @@
+#### Support
+If you do have a contribution to the package, feel free to create a Pull Request or an Issue.
+
+#### What to contribute
+If you don't know what to do, there are some features and functions that need to be done
+
+- [ ] Refactor code
+- [ ] Edit docs and [README](https://github.com/asaskevich/govalidator/README.md): spellcheck, grammar and typo check
+- [ ] Create actual list of contributors and projects that currently using this package
+- [ ] Resolve [issues and bugs](https://github.com/asaskevich/govalidator/issues)
+- [ ] Update actual [list of functions](https://github.com/asaskevich/govalidator#list-of-functions)
+- [ ] Update [list of validators](https://github.com/asaskevich/govalidator#validatestruct-2) that available for `ValidateStruct` and add new
+- [ ] Implement new validators: `IsFQDN`, `IsIMEI`, `IsPostalCode`, `IsISIN`, `IsISRC` etc
+- [x] Implement [validation by maps](https://github.com/asaskevich/govalidator/issues/224)
+- [ ] Implement fuzzing testing
+- [ ] Implement some struct/map/array utilities
+- [ ] Implement map/array validation
+- [ ] Implement benchmarking
+- [ ] Implement batch of examples
+- [ ] Look at forks for new features and fixes
+
+#### Advice
+Feel free to create what you want, but keep in mind when you implement new features:
+- Code must be clear and readable, names of variables/constants clearly describes what they are doing
+- Public functions must be documented and described in source file and added to README.md to the list of available functions
+- There are must be unit-tests for any new functions and improvements
+
+## Financial contributions
+
+We also welcome financial contributions in full transparency on our [open collective](https://opencollective.com/govalidator).
+Anyone can file an expense. If the expense makes sense for the development of the community, it will be "merged" in the ledger of our open collective by the core contributors and the person who filed the expense will be reimbursed.
+
+
+## Credits
+
+
+### Contributors
+
+Thank you to all the people who have already contributed to govalidator!
+<a href="https://github.com/asaskevich/govalidator/graphs/contributors"><img src="https://opencollective.com/govalidator/contributors.svg?width=890" /></a>
+
+
+### Backers
+
+Thank you to all our backers! [[Become a backer](https://opencollective.com/govalidator#backer)]
+
+<a href="https://opencollective.com/govalidator#backers" target="_blank"><img src="https://opencollective.com/govalidator/backers.svg?width=890"></a>
+
+
+### Sponsors
+
+Thank you to all our sponsors! (please ask your company to also support this open source project by [becoming a sponsor](https://opencollective.com/govalidator#sponsor))
+
+<a href="https://opencollective.com/govalidator/sponsor/0/website" target="_blank"><img src="https://opencollective.com/govalidator/sponsor/0/avatar.svg"></a>
+<a href="https://opencollective.com/govalidator/sponsor/1/website" target="_blank"><img src="https://opencollective.com/govalidator/sponsor/1/avatar.svg"></a>
+<a href="https://opencollective.com/govalidator/sponsor/2/website" target="_blank"><img src="https://opencollective.com/govalidator/sponsor/2/avatar.svg"></a>
+<a href="https://opencollective.com/govalidator/sponsor/3/website" target="_blank"><img src="https://opencollective.com/govalidator/sponsor/3/avatar.svg"></a>
+<a href="https://opencollective.com/govalidator/sponsor/4/website" target="_blank"><img src="https://opencollective.com/govalidator/sponsor/4/avatar.svg"></a>
+<a href="https://opencollective.com/govalidator/sponsor/5/website" target="_blank"><img src="https://opencollective.com/govalidator/sponsor/5/avatar.svg"></a>
+<a href="https://opencollective.com/govalidator/sponsor/6/website" target="_blank"><img src="https://opencollective.com/govalidator/sponsor/6/avatar.svg"></a>
+<a href="https://opencollective.com/govalidator/sponsor/7/website" target="_blank"><img src="https://opencollective.com/govalidator/sponsor/7/avatar.svg"></a>
+<a href="https://opencollective.com/govalidator/sponsor/8/website" target="_blank"><img src="https://opencollective.com/govalidator/sponsor/8/avatar.svg"></a>
+<a href="https://opencollective.com/govalidator/sponsor/9/website" target="_blank"><img src="https://opencollective.com/govalidator/sponsor/9/avatar.svg"></a>

vendor/github.com/asaskevich/govalidator/LICENSE

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2014-2020 Alex Saskevich
+
+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.

vendor/github.com/asaskevich/govalidator/README.md

@@ -0,0 +1,622 @@
+govalidator
+===========
+[![Gitter](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/asaskevich/govalidator?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge) [![GoDoc](https://godoc.org/github.com/asaskevich/govalidator?status.png)](https://godoc.org/github.com/asaskevich/govalidator)
+[![Build Status](https://travis-ci.org/asaskevich/govalidator.svg?branch=master)](https://travis-ci.org/asaskevich/govalidator)
+[![Coverage](https://codecov.io/gh/asaskevich/govalidator/branch/master/graph/badge.svg)](https://codecov.io/gh/asaskevich/govalidator) [![Go Report Card](https://goreportcard.com/badge/github.com/asaskevich/govalidator)](https://goreportcard.com/report/github.com/asaskevich/govalidator) [![GoSearch](http://go-search.org/badge?id=github.com%2Fasaskevich%2Fgovalidator)](http://go-search.org/view?id=github.com%2Fasaskevich%2Fgovalidator) [![Backers on Open Collective](https://opencollective.com/govalidator/backers/badge.svg)](#backers) [![Sponsors on Open Collective](https://opencollective.com/govalidator/sponsors/badge.svg)](#sponsors) [![FOSSA Status](https://app.fossa.io/api/projects/git%2Bgithub.com%2Fasaskevich%2Fgovalidator.svg?type=shield)](https://app.fossa.io/projects/git%2Bgithub.com%2Fasaskevich%2Fgovalidator?ref=badge_shield)
+
+A package of validators and sanitizers for strings, structs and collections. Based on [validator.js](https://github.com/chriso/validator.js).
+
+#### Installation
+Make sure that Go is installed on your computer.
+Type the following command in your terminal:
+
+	go get github.com/asaskevich/govalidator
+
+or you can get specified release of the package with `gopkg.in`:
+
+	go get gopkg.in/asaskevich/govalidator.v10
+
+After it the package is ready to use.
+
+
+#### Import package in your project
+Add following line in your `*.go` file:
+```go
+import "github.com/asaskevich/govalidator"
+```
+If you are unhappy to use long `govalidator`, you can do something like this:
+```go
+import (
+  valid "github.com/asaskevich/govalidator"
+)
+```
+
+#### Activate behavior to require all fields have a validation tag by default
+`SetFieldsRequiredByDefault` causes validation to fail when struct fields do not include validations or are not explicitly marked as exempt (using `valid:"-"` or `valid:"email,optional"`). A good place to activate this is a package init function or the main() function.
+
+`SetNilPtrAllowedByRequired` causes validation to pass when struct fields marked by `required` are set to nil. This is disabled by default for consistency, but some packages that need to be able to determine between `nil` and `zero value` state can use this. If disabled, both `nil` and `zero` values cause validation errors.
+
+```go
+import "github.com/asaskevich/govalidator"
+
+func init() {
+  govalidator.SetFieldsRequiredByDefault(true)
+}
+```
+
+Here's some code to explain it:
+```go
+// this struct definition will fail govalidator.ValidateStruct() (and the field values do not matter):
+type exampleStruct struct {
+  Name  string ``
+  Email string `valid:"email"`
+}
+
+// this, however, will only fail when Email is empty or an invalid email address:
+type exampleStruct2 struct {
+  Name  string `valid:"-"`
+  Email string `valid:"email"`
+}
+
+// lastly, this will only fail when Email is an invalid email address but not when it's empty:
+type exampleStruct2 struct {
+  Name  string `valid:"-"`
+  Email string `valid:"email,optional"`
+}
+```
+
+#### Recent breaking changes (see [#123](https://github.com/asaskevich/govalidator/pull/123))
+##### Custom validator function signature
+A context was added as the second parameter, for structs this is the object being validated – this makes dependent validation possible.
+```go
+import "github.com/asaskevich/govalidator"
+
+// old signature
+func(i interface{}) bool
+
+// new signature
+func(i interface{}, o interface{}) bool
+```
+
+##### Adding a custom validator
+This was changed to prevent data races when accessing custom validators.
+```go
+import "github.com/asaskevich/govalidator"
+
+// before
+govalidator.CustomTypeTagMap["customByteArrayValidator"] = func(i interface{}, o interface{}) bool {
+  // ...
+}
+
+// after
+govalidator.CustomTypeTagMap.Set("customByteArrayValidator", func(i interface{}, o interface{}) bool {
+  // ...
+})
+```
+
+#### List of functions:
+```go
+func Abs(value float64) float64
+func BlackList(str, chars string) string
+func ByteLength(str string, params ...string) bool
+func CamelCaseToUnderscore(str string) string
+func Contains(str, substring string) bool
+func Count(array []interface{}, iterator ConditionIterator) int
+func Each(array []interface{}, iterator Iterator)
+func ErrorByField(e error, field string) string
+func ErrorsByField(e error) map[string]string
+func Filter(array []interface{}, iterator ConditionIterator) []interface{}
+func Find(array []interface{}, iterator ConditionIterator) interface{}
+func GetLine(s string, index int) (string, error)
+func GetLines(s string) []string
+func HasLowerCase(str string) bool
+func HasUpperCase(str string) bool
+func HasWhitespace(str string) bool
+func HasWhitespaceOnly(str string) bool
+func InRange(value interface{}, left interface{}, right interface{}) bool
+func InRangeFloat32(value, left, right float32) bool
+func InRangeFloat64(value, left, right float64) bool
+func InRangeInt(value, left, right interface{}) bool
+func IsASCII(str string) bool
+func IsAlpha(str string) bool
+func IsAlphanumeric(str string) bool
+func IsBase64(str string) bool
+func IsByteLength(str string, min, max int) bool
+func IsCIDR(str string) bool
+func IsCRC32(str string) bool
+func IsCRC32b(str string) bool
+func IsCreditCard(str string) bool
+func IsDNSName(str string) bool
+func IsDataURI(str string) bool
+func IsDialString(str string) bool
+func IsDivisibleBy(str, num string) bool
+func IsEmail(str string) bool
+func IsExistingEmail(email string) bool
+func IsFilePath(str string) (bool, int)
+func IsFloat(str string) bool
+func IsFullWidth(str string) bool
+func IsHalfWidth(str string) bool
+func IsHash(str string, algorithm string) bool
+func IsHexadecimal(str string) bool
+func IsHexcolor(str string) bool
+func IsHost(str string) bool
+func IsIP(str string) bool
+func IsIPv4(str string) bool
+func IsIPv6(str string) bool
+func IsISBN(str string, version int) bool
+func IsISBN10(str string) bool
+func IsISBN13(str string) bool
+func IsISO3166Alpha2(str string) bool
+func IsISO3166Alpha3(str string) bool
+func IsISO4217(str string) bool
+func IsISO693Alpha2(str string) bool
+func IsISO693Alpha3b(str string) bool
+func IsIn(str string, params ...string) bool
+func IsInRaw(str string, params ...string) bool
+func IsInt(str string) bool
+func IsJSON(str string) bool
+func IsLatitude(str string) bool
+func IsLongitude(str string) bool
+func IsLowerCase(str string) bool
+func IsMAC(str string) bool
+func IsMD4(str string) bool
+func IsMD5(str string) bool
+func IsMagnetURI(str string) bool
+func IsMongoID(str string) bool
+func IsMultibyte(str string) bool
+func IsNatural(value float64) bool
+func IsNegative(value float64) bool
+func IsNonNegative(value float64) bool
+func IsNonPositive(value float64) bool
+func IsNotNull(str string) bool
+func IsNull(str string) bool
+func IsNumeric(str string) bool
+func IsPort(str string) bool
+func IsPositive(value float64) bool
+func IsPrintableASCII(str string) bool
+func IsRFC3339(str string) bool
+func IsRFC3339WithoutZone(str string) bool
+func IsRGBcolor(str string) bool
+func IsRegex(str string) bool
+func IsRequestURI(rawurl string) bool
+func IsRequestURL(rawurl string) bool
+func IsRipeMD128(str string) bool
+func IsRipeMD160(str string) bool
+func IsRsaPub(str string, params ...string) bool
+func IsRsaPublicKey(str string, keylen int) bool
+func IsSHA1(str string) bool
+func IsSHA256(str string) bool
+func IsSHA384(str string) bool
+func IsSHA512(str string) bool
+func IsSSN(str string) bool
+func IsSemver(str string) bool
+func IsTiger128(str string) bool
+func IsTiger160(str string) bool
+func IsTiger192(str string) bool
+func IsTime(str string, format string) bool
+func IsType(v interface{}, params ...string) bool
+func IsURL(str string) bool
+func IsUTFDigit(str string) bool
+func IsUTFLetter(str string) bool
+func IsUTFLetterNumeric(str string) bool
+func IsUTFNumeric(str string) bool
+func IsUUID(str string) bool
+func IsUUIDv3(str string) bool
+func IsUUIDv4(str string) bool
+func IsUUIDv5(str string) bool
+func IsULID(str string) bool
+func IsUnixTime(str string) bool
+func IsUpperCase(str string) bool
+func IsVariableWidth(str string) bool
+func IsWhole(value float64) bool
+func LeftTrim(str, chars string) string
+func Map(array []interface{}, iterator ResultIterator) []interface{}
+func Matches(str, pattern string) bool
+func MaxStringLength(str string, params ...string) bool
+func MinStringLength(str string, params ...string) bool
+func NormalizeEmail(str string) (string, error)
+func PadBoth(str string, padStr string, padLen int) string
+func PadLeft(str string, padStr string, padLen int) string
+func PadRight(str string, padStr string, padLen int) string
+func PrependPathToErrors(err error, path string) error
+func Range(str string, params ...string) bool
+func RemoveTags(s string) string
+func ReplacePattern(str, pattern, replace string) string
+func Reverse(s string) string
+func RightTrim(str, chars string) string
+func RuneLength(str string, params ...string) bool
+func SafeFileName(str string) string
+func SetFieldsRequiredByDefault(value bool)
+func SetNilPtrAllowedByRequired(value bool)
+func Sign(value float64) float64
+func StringLength(str string, params ...string) bool
+func StringMatches(s string, params ...string) bool
+func StripLow(str string, keepNewLines bool) string
+func ToBoolean(str string) (bool, error)
+func ToFloat(str string) (float64, error)
+func ToInt(value interface{}) (res int64, err error)
+func ToJSON(obj interface{}) (string, error)
+func ToString(obj interface{}) string
+func Trim(str, chars string) string
+func Truncate(str string, length int, ending string) string
+func TruncatingErrorf(str string, args ...interface{}) error
+func UnderscoreToCamelCase(s string) string
+func ValidateMap(inputMap map[string]interface{}, validationMap map[string]interface{}) (bool, error)
+func ValidateStruct(s interface{}) (bool, error)
+func WhiteList(str, chars string) string
+type ConditionIterator
+type CustomTypeValidator
+type Error
+func (e Error) Error() string
+type Errors
+func (es Errors) Error() string
+func (es Errors) Errors() []error
+type ISO3166Entry
+type ISO693Entry
+type InterfaceParamValidator
+type Iterator
+type ParamValidator
+type ResultIterator
+type UnsupportedTypeError
+func (e *UnsupportedTypeError) Error() string
+type Validator
+```
+
+#### Examples
+###### IsURL
+```go
+println(govalidator.IsURL(`http://user@pass:domain.com/path/page`))
+```
+###### IsType
+```go
+println(govalidator.IsType("Bob", "string"))
+println(govalidator.IsType(1, "int"))
+i := 1
+println(govalidator.IsType(&i, "*int"))
+```
+
+IsType can be used through the tag `type` which is essential for map validation:
+```go
+type User	struct {
+  Name string      `valid:"type(string)"`
+  Age  int         `valid:"type(int)"`
+  Meta interface{} `valid:"type(string)"`
+}
+result, err := govalidator.ValidateStruct(User{"Bob", 20, "meta"})
+if err != nil {
+	println("error: " + err.Error())
+}
+println(result)
+```
+###### ToString
+```go
+type User struct {
+	FirstName string
+	LastName string
+}
+
+str := govalidator.ToString(&User{"John", "Juan"})
+println(str)
+```
+###### Each, Map, Filter, Count for slices
+Each iterates over the slice/array and calls Iterator for every item
+```go
+data := []interface{}{1, 2, 3, 4, 5}
+var fn govalidator.Iterator = func(value interface{}, index int) {
+	println(value.(int))
+}
+govalidator.Each(data, fn)
+```
+```go
+data := []interface{}{1, 2, 3, 4, 5}
+var fn govalidator.ResultIterator = func(value interface{}, index int) interface{} {
+	return value.(int) * 3
+}
+_ = govalidator.Map(data, fn) // result = []interface{}{1, 6, 9, 12, 15}
+```
+```go
+data := []interface{}{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
+var fn govalidator.ConditionIterator = func(value interface{}, index int) bool {
+	return value.(int)%2 == 0
+}
+_ = govalidator.Filter(data, fn) // result = []interface{}{2, 4, 6, 8, 10}
+_ = govalidator.Count(data, fn) // result = 5
+```
+###### ValidateStruct [#2](https://github.com/asaskevich/govalidator/pull/2)
+If you want to validate structs, you can use tag `valid` for any field in your structure. All validators used with this field in one tag are separated by comma. If you want to skip validation, place `-` in your tag. If you need a validator that is not on the list below, you can add it like this:
+```go
+govalidator.TagMap["duck"] = govalidator.Validator(func(str string) bool {
+	return str == "duck"
+})
+```
+For completely custom validators (interface-based), see below.
+
+Here is a list of available validators for struct fields (validator - used function):
+```go
+"email":              IsEmail,
+"url":                IsURL,
+"dialstring":         IsDialString,
+"requrl":             IsRequestURL,
+"requri":             IsRequestURI,
+"alpha":              IsAlpha,
+"utfletter":          IsUTFLetter,
+"alphanum":           IsAlphanumeric,
+"utfletternum":       IsUTFLetterNumeric,
+"numeric":            IsNumeric,
+"utfnumeric":         IsUTFNumeric,
+"utfdigit":           IsUTFDigit,
+"hexadecimal":        IsHexadecimal,
+"hexcolor":           IsHexcolor,
+"rgbcolor":           IsRGBcolor,
+"lowercase":          IsLowerCase,
+"uppercase":          IsUpperCase,
+"int":                IsInt,
+"float":              IsFloat,
+"null":               IsNull,
+"uuid":               IsUUID,
+"uuidv3":             IsUUIDv3,
+"uuidv4":             IsUUIDv4,
+"uuidv5":             IsUUIDv5,
+"creditcard":         IsCreditCard,
+"isbn10":             IsISBN10,
+"isbn13":             IsISBN13,
+"json":               IsJSON,
+"multibyte":          IsMultibyte,
+"ascii":              IsASCII,
+"printableascii":     IsPrintableASCII,
+"fullwidth":          IsFullWidth,
+"halfwidth":          IsHalfWidth,
+"variablewidth":      IsVariableWidth,
+"base64":             IsBase64,
+"datauri":            IsDataURI,
+"ip":                 IsIP,
+"port":               IsPort,
+"ipv4":               IsIPv4,
+"ipv6":               IsIPv6,
+"dns":                IsDNSName,
+"host":               IsHost,
+"mac":                IsMAC,
+"latitude":           IsLatitude,
+"longitude":          IsLongitude,
+"ssn":                IsSSN,
+"semver":             IsSemver,
+"rfc3339":            IsRFC3339,
+"rfc3339WithoutZone": IsRFC3339WithoutZone,
+"ISO3166Alpha2":      IsISO3166Alpha2,
+"ISO3166Alpha3":      IsISO3166Alpha3,
+"ulid":               IsULID,
+```
+Validators with parameters
+
+```go
+"range(min|max)": Range,
+"length(min|max)": ByteLength,
+"runelength(min|max)": RuneLength,
+"stringlength(min|max)": StringLength,
+"matches(pattern)": StringMatches,
+"in(string1|string2|...|stringN)": IsIn,
+"rsapub(keylength)" : IsRsaPub,
+"minstringlength(int): MinStringLength,
+"maxstringlength(int): MaxStringLength,
+```
+Validators with parameters for any type
+
+```go
+"type(type)": IsType,
+```
+
+And here is small example of usage:
+```go
+type Post struct {
+	Title    string `valid:"alphanum,required"`
+	Message  string `valid:"duck,ascii"`
+	Message2 string `valid:"animal(dog)"`
+	AuthorIP string `valid:"ipv4"`
+	Date     string `valid:"-"`
+}
+post := &Post{
+	Title:   "My Example Post",
+	Message: "duck",
+	Message2: "dog",
+	AuthorIP: "123.234.54.3",
+}
+
+// Add your own struct validation tags
+govalidator.TagMap["duck"] = govalidator.Validator(func(str string) bool {
+	return str == "duck"
+})
+
+// Add your own struct validation tags with parameter
+govalidator.ParamTagMap["animal"] = govalidator.ParamValidator(func(str string, params ...string) bool {
+    species := params[0]
+    return str == species
+})
+govalidator.ParamTagRegexMap["animal"] = regexp.MustCompile("^animal\\((\\w+)\\)$")
+
+result, err := govalidator.ValidateStruct(post)
+if err != nil {
+	println("error: " + err.Error())
+}
+println(result)
+```
+###### ValidateMap [#2](https://github.com/asaskevich/govalidator/pull/338)
+If you want to validate maps, you can use the map to be validated and a validation map that contain the same tags used in ValidateStruct, both maps have to be in the form `map[string]interface{}`
+
+So here is small example of usage:
+```go
+var mapTemplate = map[string]interface{}{
+	"name":"required,alpha",
+	"family":"required,alpha",
+	"email":"required,email",
+	"cell-phone":"numeric",
+	"address":map[string]interface{}{
+		"line1":"required,alphanum",
+		"line2":"alphanum",
+		"postal-code":"numeric",
+	},
+}
+
+var inputMap = map[string]interface{}{
+	"name":"Bob",
+	"family":"Smith",
+	"email":"foo@bar.baz",
+	"address":map[string]interface{}{
+		"line1":"",
+		"line2":"",
+		"postal-code":"",
+	},
+}
+
+result, err := govalidator.ValidateMap(inputMap, mapTemplate)
+if err != nil {
+	println("error: " + err.Error())
+}
+println(result)
+```
+
+###### WhiteList
+```go
+// Remove all characters from string ignoring characters between "a" and "z"
+println(govalidator.WhiteList("a3a43a5a4a3a2a23a4a5a4a3a4", "a-z") == "aaaaaaaaaaaa")
+```
+
+###### Custom validation functions
+Custom validation using your own domain specific validators is also available - here's an example of how to use it:
+```go
+import "github.com/asaskevich/govalidator"
+
+type CustomByteArray [6]byte // custom types are supported and can be validated
+
+type StructWithCustomByteArray struct {
+  ID              CustomByteArray `valid:"customByteArrayValidator,customMinLengthValidator"` // multiple custom validators are possible as well and will be evaluated in sequence
+  Email           string          `valid:"email"`
+  CustomMinLength int             `valid:"-"`
+}
+
+govalidator.CustomTypeTagMap.Set("customByteArrayValidator", func(i interface{}, context interface{}) bool {
+  switch v := context.(type) { // you can type switch on the context interface being validated
+  case StructWithCustomByteArray:
+    // you can check and validate against some other field in the context,
+    // return early or not validate against the context at all – your choice
+  case SomeOtherType:
+    // ...
+  default:
+    // expecting some other type? Throw/panic here or continue
+  }
+
+  switch v := i.(type) { // type switch on the struct field being validated
+  case CustomByteArray:
+    for _, e := range v { // this validator checks that the byte array is not empty, i.e. not all zeroes
+      if e != 0 {
+        return true
+      }
+    }
+  }
+  return false
+})
+govalidator.CustomTypeTagMap.Set("customMinLengthValidator", func(i interface{}, context interface{}) bool {
+  switch v := context.(type) { // this validates a field against the value in another field, i.e. dependent validation
+  case StructWithCustomByteArray:
+    return len(v.ID) >= v.CustomMinLength
+  }
+  return false
+})
+```
+
+###### Loop over Error()
+By default .Error() returns all errors in a single String. To access each error you can do this:
+```go
+  if err != nil {
+    errs := err.(govalidator.Errors).Errors()
+    for _, e := range errs {
+      fmt.Println(e.Error())
+    }
+  }
+```
+
+###### Custom error messages
+Custom error messages are supported via annotations by adding the `~` separator - here's an example of how to use it:
+```go
+type Ticket struct {
+  Id        int64     `json:"id"`
+  FirstName string    `json:"firstname" valid:"required~First name is blank"`
+}
+```
+
+#### Notes
+Documentation is available here: [godoc.org](https://godoc.org/github.com/asaskevich/govalidator).
+Full information about code coverage is also available here: [govalidator on gocover.io](http://gocover.io/github.com/asaskevich/govalidator).
+
+#### Support
+If you do have a contribution to the package, feel free to create a Pull Request or an Issue.
+
+#### What to contribute
+If you don't know what to do, there are some features and functions that need to be done
+
+- [ ] Refactor code
+- [ ] Edit docs and [README](https://github.com/asaskevich/govalidator/README.md): spellcheck, grammar and typo check
+- [ ] Create actual list of contributors and projects that currently using this package
+- [ ] Resolve [issues and bugs](https://github.com/asaskevich/govalidator/issues)
+- [ ] Update actual [list of functions](https://github.com/asaskevich/govalidator#list-of-functions)
+- [ ] Update [list of validators](https://github.com/asaskevich/govalidator#validatestruct-2) that available for `ValidateStruct` and add new
+- [ ] Implement new validators: `IsFQDN`, `IsIMEI`, `IsPostalCode`, `IsISIN`, `IsISRC` etc
+- [x] Implement [validation by maps](https://github.com/asaskevich/govalidator/issues/224)
+- [ ] Implement fuzzing testing
+- [ ] Implement some struct/map/array utilities
+- [ ] Implement map/array validation
+- [ ] Implement benchmarking
+- [ ] Implement batch of examples
+- [ ] Look at forks for new features and fixes
+
+#### Advice
+Feel free to create what you want, but keep in mind when you implement new features:
+- Code must be clear and readable, names of variables/constants clearly describes what they are doing
+- Public functions must be documented and described in source file and added to README.md to the list of available functions
+- There are must be unit-tests for any new functions and improvements
+
+## Credits
+### Contributors
+
+This project exists thanks to all the people who contribute. [[Contribute](CONTRIBUTING.md)].
+
+#### Special thanks to [contributors](https://github.com/asaskevich/govalidator/graphs/contributors)
+* [Daniel Lohse](https://github.com/annismckenzie)
+* [Attila Oláh](https://github.com/attilaolah)
+* [Daniel Korner](https://github.com/Dadie)
+* [Steven Wilkin](https://github.com/stevenwilkin)
+* [Deiwin Sarjas](https://github.com/deiwin)
+* [Noah Shibley](https://github.com/slugmobile)
+* [Nathan Davies](https://github.com/nathj07)
+* [Matt Sanford](https://github.com/mzsanford)
+* [Simon ccl1115](https://github.com/ccl1115)
+
+<a href="https://github.com/asaskevich/govalidator/graphs/contributors"><img src="https://opencollective.com/govalidator/contributors.svg?width=890" /></a>
+
+
+### Backers
+
+Thank you to all our backers! 🙏 [[Become a backer](https://opencollective.com/govalidator#backer)]
+
+<a href="https://opencollective.com/govalidator#backers" target="_blank"><img src="https://opencollective.com/govalidator/backers.svg?width=890"></a>
+
+
+### Sponsors
+
+Support this project by becoming a sponsor. Your logo will show up here with a link to your website. [[Become a sponsor](https://opencollective.com/govalidator#sponsor)]
+
+<a href="https://opencollective.com/govalidator/sponsor/0/website" target="_blank"><img src="https://opencollective.com/govalidator/sponsor/0/avatar.svg"></a>
+<a href="https://opencollective.com/govalidator/sponsor/1/website" target="_blank"><img src="https://opencollective.com/govalidator/sponsor/1/avatar.svg"></a>
+<a href="https://opencollective.com/govalidator/sponsor/2/website" target="_blank"><img src="https://opencollective.com/govalidator/sponsor/2/avatar.svg"></a>
+<a href="https://opencollective.com/govalidator/sponsor/3/website" target="_blank"><img src="https://opencollective.com/govalidator/sponsor/3/avatar.svg"></a>
+<a href="https://opencollective.com/govalidator/sponsor/4/website" target="_blank"><img src="https://opencollective.com/govalidator/sponsor/4/avatar.svg"></a>
+<a href="https://opencollective.com/govalidator/sponsor/5/website" target="_blank"><img src="https://opencollective.com/govalidator/sponsor/5/avatar.svg"></a>
+<a href="https://opencollective.com/govalidator/sponsor/6/website" target="_blank"><img src="https://opencollective.com/govalidator/sponsor/6/avatar.svg"></a>
+<a href="https://opencollective.com/govalidator/sponsor/7/website" target="_blank"><img src="https://opencollective.com/govalidator/sponsor/7/avatar.svg"></a>
+<a href="https://opencollective.com/govalidator/sponsor/8/website" target="_blank"><img src="https://opencollective.com/govalidator/sponsor/8/avatar.svg"></a>
+<a href="https://opencollective.com/govalidator/sponsor/9/website" target="_blank"><img src="https://opencollective.com/govalidator/sponsor/9/avatar.svg"></a>
+
+
+
+
+## License
+[![FOSSA Status](https://app.fossa.io/api/projects/git%2Bgithub.com%2Fasaskevich%2Fgovalidator.svg?type=large)](https://app.fossa.io/projects/git%2Bgithub.com%2Fasaskevich%2Fgovalidator?ref=badge_large)

vendor/github.com/asaskevich/govalidator/arrays.go

@@ -0,0 +1,87 @@
+package govalidator
+
+// Iterator is the function that accepts element of slice/array and its index
+type Iterator func(interface{}, int)
+
+// ResultIterator is the function that accepts element of slice/array and its index and returns any result
+type ResultIterator func(interface{}, int) interface{}
+
+// ConditionIterator is the function that accepts element of slice/array and its index and returns boolean
+type ConditionIterator func(interface{}, int) bool
+
+// ReduceIterator is the function that accepts two element of slice/array and returns result of merging those values
+type ReduceIterator func(interface{}, interface{}) interface{}
+
+// Some validates that any item of array corresponds to ConditionIterator. Returns boolean.
+func Some(array []interface{}, iterator ConditionIterator) bool {
+	res := false
+	for index, data := range array {
+		res = res || iterator(data, index)
+	}
+	return res
+}
+
+// Every validates that every item of array corresponds to ConditionIterator. Returns boolean.
+func Every(array []interface{}, iterator ConditionIterator) bool {
+	res := true
+	for index, data := range array {
+		res = res && iterator(data, index)
+	}
+	return res
+}
+
+// Reduce boils down a list of values into a single value by ReduceIterator
+func Reduce(array []interface{}, iterator ReduceIterator, initialValue interface{}) interface{} {
+	for _, data := range array {
+		initialValue = iterator(initialValue, data)
+	}
+	return initialValue
+}
+
+// Each iterates over the slice and apply Iterator to every item
+func Each(array []interface{}, iterator Iterator) {
+	for index, data := range array {
+		iterator(data, index)
+	}
+}
+
+// Map iterates over the slice and apply ResultIterator to every item. Returns new slice as a result.
+func Map(array []interface{}, iterator ResultIterator) []interface{} {
+	var result = make([]interface{}, len(array))
+	for index, data := range array {
+		result[index] = iterator(data, index)
+	}
+	return result
+}
+
+// Find iterates over the slice and apply ConditionIterator to every item. Returns first item that meet ConditionIterator or nil otherwise.
+func Find(array []interface{}, iterator ConditionIterator) interface{} {
+	for index, data := range array {
+		if iterator(data, index) {
+			return data
+		}
+	}
+	return nil
+}
+
+// Filter iterates over the slice and apply ConditionIterator to every item. Returns new slice.
+func Filter(array []interface{}, iterator ConditionIterator) []interface{} {
+	var result = make([]interface{}, 0)
+	for index, data := range array {
+		if iterator(data, index) {
+			result = append(result, data)
+		}
+	}
+	return result
+}
+
+// Count iterates over the slice and apply ConditionIterator to every item. Returns count of items that meets ConditionIterator.
+func Count(array []interface{}, iterator ConditionIterator) int {
+	count := 0
+	for index, data := range array {
+		if iterator(data, index) {
+			count = count + 1
+		}
+	}
+	return count
+}

vendor/github.com/asaskevich/govalidator/converter.go

@@ -0,0 +1,81 @@
+package govalidator
+
+import (
+	"encoding/json"
+	"fmt"
+	"reflect"
+	"strconv"
+)
+
+// ToString convert the input to a string.
+func ToString(obj interface{}) string {
+	res := fmt.Sprintf("%v", obj)
+	return res
+}
+
+// ToJSON convert the input to a valid JSON string
+func ToJSON(obj interface{}) (string, error) {
+	res, err := json.Marshal(obj)
+	if err != nil {
+		res = []byte("")
+	}
+	return string(res), err
+}
+
+// ToFloat convert the input string to a float, or 0.0 if the input is not a float.
+func ToFloat(value interface{}) (res float64, err error) {
+	val := reflect.ValueOf(value)
+
+	switch value.(type) {
+	case int, int8, int16, int32, int64:
+		res = float64(val.Int())
+	case uint, uint8, uint16, uint32, uint64:
+		res = float64(val.Uint())
+	case float32, float64:
+		res = val.Float()
+	case string:
+		res, err = strconv.ParseFloat(val.String(), 64)
+		if err != nil {
+			res = 0
+		}
+	default:
+		err = fmt.Errorf("ToInt: unknown interface type %T", value)
+		res = 0
+	}
+
+	return
+}
+
+// ToInt convert the input string or any int type to an integer type 64, or 0 if the input is not an integer.
+func ToInt(value interface{}) (res int64, err error) {
+	val := reflect.ValueOf(value)
+
+	switch value.(type) {
+	case int, int8, int16, int32, int64:
+		res = val.Int()
+	case uint, uint8, uint16, uint32, uint64:
+		res = int64(val.Uint())
+	case float32, float64:
+		res = int64(val.Float())
+	case string:
+		if IsInt(val.String()) {
+			res, err = strconv.ParseInt(val.String(), 0, 64)
+			if err != nil {
+				res = 0
+			}
+		} else {
+			err = fmt.Errorf("ToInt: invalid numeric format %g", value)
+			res = 0
+		}
+	default:
+		err = fmt.Errorf("ToInt: unknown interface type %T", value)
+		res = 0
+	}
+
+	return
+}
+
+// ToBoolean convert the input string to a boolean.
+func ToBoolean(str string) (bool, error) {
+	return strconv.ParseBool(str)
+}

vendor/github.com/asaskevich/govalidator/doc.go

@@ -0,0 +1,3 @@
+package govalidator
+
+// A package of validators and sanitizers for strings, structures and collections.

vendor/github.com/asaskevich/govalidator/error.go

@@ -0,0 +1,47 @@
+package govalidator
+
+import (
+	"sort"
+	"strings"
+)
+
+// Errors is an array of multiple errors and conforms to the error interface.
+type Errors []error
+
+// Errors returns itself.
+func (es Errors) Errors() []error {
+	return es
+}
+
+func (es Errors) Error() string {
+	var errs []string
+	for _, e := range es {
+		errs = append(errs, e.Error())
+	}
+	sort.Strings(errs)
+	return strings.Join(errs, ";")
+}
+
+// Error encapsulates a name, an error and whether there's a custom error message or not.
+type Error struct {
+	Name                     string
+	Err                      error
+	CustomErrorMessageExists bool
+
+	// Validator indicates the name of the validator that failed
+	Validator string
+	Path      []string
+}
+
+func (e Error) Error() string {
+	if e.CustomErrorMessageExists {
+		return e.Err.Error()
+	}
+
+	errName := e.Name
+	if len(e.Path) > 0 {
+		errName = strings.Join(append(e.Path, e.Name), ".")
+	}
+
+	return errName + ": " + e.Err.Error()
+}

vendor/github.com/asaskevich/govalidator/numerics.go

@@ -0,0 +1,100 @@
+package govalidator
+
+import (
+	"math"
+)
+
+// Abs returns absolute value of number
+func Abs(value float64) float64 {
+	return math.Abs(value)
+}
+
+// Sign returns signum of number: 1 in case of value > 0, -1 in case of value < 0, 0 otherwise
+func Sign(value float64) float64 {
+	if value > 0 {
+		return 1
+	} else if value < 0 {
+		return -1
+	} else {
+		return 0
+	}
+}
+
+// IsNegative returns true if value < 0
+func IsNegative(value float64) bool {
+	return value < 0
+}
+
+// IsPositive returns true if value > 0
+func IsPositive(value float64) bool {
+	return value > 0
+}
+
+// IsNonNegative returns true if value >= 0
+func IsNonNegative(value float64) bool {
+	return value >= 0
+}
+
+// IsNonPositive returns true if value <= 0
+func IsNonPositive(value float64) bool {
+	return value <= 0
+}
+
+// InRangeInt returns true if value lies between left and right border
+func InRangeInt(value, left, right interface{}) bool {
+	value64, _ := ToInt(value)
+	left64, _ := ToInt(left)
+	right64, _ := ToInt(right)
+	if left64 > right64 {
+		left64, right64 = right64, left64
+	}
+	return value64 >= left64 && value64 <= right64
+}
+
+// InRangeFloat32 returns true if value lies between left and right border
+func InRangeFloat32(value, left, right float32) bool {
+	if left > right {
+		left, right = right, left
+	}
+	return value >= left && value <= right
+}
+
+// InRangeFloat64 returns true if value lies between left and right border
+func InRangeFloat64(value, left, right float64) bool {
+	if left > right {
+		left, right = right, left
+	}
+	return value >= left && value <= right
+}
+
+// InRange returns true if value lies between left and right border, generic type to handle int, float32, float64 and string.
+// All types must the same type.
+// False if value doesn't lie in range or if it incompatible or not comparable
+func InRange(value interface{}, left interface{}, right interface{}) bool {
+	switch value.(type) {
+	case int:
+		intValue, _ := ToInt(value)
+		intLeft, _ := ToInt(left)
+		intRight, _ := ToInt(right)
+		return InRangeInt(intValue, intLeft, intRight)
+	case float32, float64:
+		intValue, _ := ToFloat(value)
+		intLeft, _ := ToFloat(left)
+		intRight, _ := ToFloat(right)
+		return InRangeFloat64(intValue, intLeft, intRight)
+	case string:
+		return value.(string) >= left.(string) && value.(string) <= right.(string)
+	default:
+		return false
+	}
+}
+
+// IsWhole returns true if value is whole number
+func IsWhole(value float64) bool {
+	return math.Remainder(value, 1) == 0
+}
+
+// IsNatural returns true if value is natural number (positive and whole)
+func IsNatural(value float64) bool {
+	return IsWhole(value) && IsPositive(value)
+}

vendor/github.com/asaskevich/govalidator/patterns.go

@@ -0,0 +1,113 @@
+package govalidator
+
+import "regexp"
+
+// Basic regular expressions for validating strings
+const (
+	Email             string = "^(((([a-zA-Z]|\\d|[!#\\$%&'\\*\\+\\-\\/=\\?\\^_`{\\|}~]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])+(\\.([a-zA-Z]|\\d|[!#\\$%&'\\*\\+\\-\\/=\\?\\^_`{\\|}~]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])+)*)|((\\x22)((((\\x20|\\x09)*(\\x0d\\x0a))?(\\x20|\\x09)+)?(([\\x01-\\x08\\x0b\\x0c\\x0e-\\x1f\\x7f]|\\x21|[\\x23-\\x5b]|[\\x5d-\\x7e]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])|(\\([\\x01-\\x09\\x0b\\x0c\\x0d-\\x7f]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}]))))*(((\\x20|\\x09)*(\\x0d\\x0a))?(\\x20|\\x09)+)?(\\x22)))@((([a-zA-Z]|\\d|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])|(([a-zA-Z]|\\d|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])([a-zA-Z]|\\d|-|\\.|_|~|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])*([a-zA-Z]|\\d|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])))\\.)+(([a-zA-Z]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])|(([a-zA-Z]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])([a-zA-Z]|\\d|-|_|~|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])*([a-zA-Z]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])))\\.?$"
+	CreditCard        string = "^(?:4[0-9]{12}(?:[0-9]{3})?|5[1-5][0-9]{14}|(222[1-9]|22[3-9][0-9]|2[3-6][0-9]{2}|27[01][0-9]|2720)[0-9]{12}|6(?:011|5[0-9][0-9])[0-9]{12}|3[47][0-9]{13}|3(?:0[0-5]|[68][0-9])[0-9]{11}|(?:2131|1800|35\\d{3})\\d{11}|6[27][0-9]{14})$"
+	ISBN10            string = "^(?:[0-9]{9}X|[0-9]{10})$"
+	ISBN13            string = "^(?:[0-9]{13})$"
+	UUID3             string = "^[0-9a-f]{8}-[0-9a-f]{4}-3[0-9a-f]{3}-[0-9a-f]{4}-[0-9a-f]{12}$"
+	UUID4             string = "^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$"
+	UUID5             string = "^[0-9a-f]{8}-[0-9a-f]{4}-5[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$"
+	UUID              string = "^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$"
+	Alpha             string = "^[a-zA-Z]+$"
+	Alphanumeric      string = "^[a-zA-Z0-9]+$"
+	Numeric           string = "^[0-9]+$"
+	Int               string = "^(?:[-+]?(?:0|[1-9][0-9]*))$"
+	Float             string = "^(?:[-+]?(?:[0-9]+))?(?:\\.[0-9]*)?(?:[eE][\\+\\-]?(?:[0-9]+))?$"
+	Hexadecimal       string = "^[0-9a-fA-F]+$"
+	Hexcolor          string = "^#?([0-9a-fA-F]{3}|[0-9a-fA-F]{6})$"
+	RGBcolor          string = "^rgb\\(\\s*(0|[1-9]\\d?|1\\d\\d?|2[0-4]\\d|25[0-5])\\s*,\\s*(0|[1-9]\\d?|1\\d\\d?|2[0-4]\\d|25[0-5])\\s*,\\s*(0|[1-9]\\d?|1\\d\\d?|2[0-4]\\d|25[0-5])\\s*\\)$"
+	ASCII             string = "^[\x00-\x7F]+$"
+	Multibyte         string = "[^\x00-\x7F]"
+	FullWidth         string = "[^\u0020-\u007E\uFF61-\uFF9F\uFFA0-\uFFDC\uFFE8-\uFFEE0-9a-zA-Z]"
+	HalfWidth         string = "[\u0020-\u007E\uFF61-\uFF9F\uFFA0-\uFFDC\uFFE8-\uFFEE0-9a-zA-Z]"
+	Base64            string = "^(?:[A-Za-z0-9+\\/]{4})*(?:[A-Za-z0-9+\\/]{2}==|[A-Za-z0-9+\\/]{3}=|[A-Za-z0-9+\\/]{4})$"
+	PrintableASCII    string = "^[\x20-\x7E]+$"
+	DataURI           string = "^data:.+\\/(.+);base64$"
+	MagnetURI         string = "^magnet:\\?xt=urn:[a-zA-Z0-9]+:[a-zA-Z0-9]{32,40}&dn=.+&tr=.+$"
+	Latitude          string = "^[-+]?([1-8]?\\d(\\.\\d+)?|90(\\.0+)?)$"
+	Longitude         string = "^[-+]?(180(\\.0+)?|((1[0-7]\\d)|([1-9]?\\d))(\\.\\d+)?)$"
+	DNSName           string = `^([a-zA-Z0-9_]{1}[a-zA-Z0-9_-]{0,62}){1}(\.[a-zA-Z0-9_]{1}[a-zA-Z0-9_-]{0,62})*[\._]?$`
+	IP                string = `(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]{0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9]))`
+	URLSchema         string = `((ftp|tcp|udp|wss?|https?):\/\/)`
+	URLUsername       string = `(\S+(:\S*)?@)`
+	URLPath           string = `((\/|\?|#)[^\s]*)`
+	URLPort           string = `(:(\d{1,5}))`
+	URLIP             string = `([1-9]\d?|1\d\d|2[01]\d|22[0-3]|24\d|25[0-5])(\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])){2}(?:\.([0-9]\d?|1\d\d|2[0-4]\d|25[0-5]))`
+	URLSubdomain      string = `((www\.)|([a-zA-Z0-9]+([-_\.]?[a-zA-Z0-9])*[a-zA-Z0-9]\.[a-zA-Z0-9]+))`
+	URL                      = `^` + URLSchema + `?` + URLUsername + `?` + `((` + URLIP + `|(\[` + IP + `\])|(([a-zA-Z0-9]([a-zA-Z0-9-_]+)?[a-zA-Z0-9]([-\.][a-zA-Z0-9]+)*)|(` + URLSubdomain + `?))?(([a-zA-Z\x{00a1}-\x{ffff}0-9]+-?-?)*[a-zA-Z\x{00a1}-\x{ffff}0-9]+)(?:\.([a-zA-Z\x{00a1}-\x{ffff}]{1,}))?))\.?` + URLPort + `?` + URLPath + `?$`
+	SSN               string = `^\d{3}[- ]?\d{2}[- ]?\d{4}$`
+	WinPath           string = `^[a-zA-Z]:\\(?:[^\\/:*?"<>|\r\n]+\\)*[^\\/:*?"<>|\r\n]*$`
+	UnixPath          string = `^(/[^/\x00]*)+/?$`
+	WinARPath         string = `^(?:(?:[a-zA-Z]:|\\\\[a-z0-9_.$●-]+\\[a-z0-9_.$●-]+)\\|\\?[^\\/:*?"<>|\r\n]+\\?)(?:[^\\/:*?"<>|\r\n]+\\)*[^\\/:*?"<>|\r\n]*$`
+	UnixARPath        string = `^((\.{0,2}/)?([^/\x00]*))+/?$`
+	Semver            string = "^v?(?:0|[1-9]\\d*)\\.(?:0|[1-9]\\d*)\\.(?:0|[1-9]\\d*)(-(0|[1-9]\\d*|\\d*[a-zA-Z-][0-9a-zA-Z-]*)(\\.(0|[1-9]\\d*|\\d*[a-zA-Z-][0-9a-zA-Z-]*))*)?(\\+[0-9a-zA-Z-]+(\\.[0-9a-zA-Z-]+)*)?$"
+	tagName           string = "valid"
+	hasLowerCase      string = ".*[[:lower:]]"
+	hasUpperCase      string = ".*[[:upper:]]"
+	hasWhitespace     string = ".*[[:space:]]"
+	hasWhitespaceOnly string = "^[[:space:]]+$"
+	IMEI              string = "^[0-9a-f]{14}$|^\\d{15}$|^\\d{18}$"
+	IMSI              string = "^\\d{14,15}$"
+	E164              string = `^\+?[1-9]\d{1,14}$`
+)
+
+// Used by IsFilePath func
+const (
+	// Unknown is unresolved OS type
+	Unknown = iota
+	// Win is Windows type
+	Win
+	// Unix is *nix OS types
+	Unix
+)
+
+var (
+	userRegexp          = regexp.MustCompile("^[a-zA-Z0-9!#$%&'*+/=?^_`{|}~.-]+$")
+	hostRegexp          = regexp.MustCompile("^[^\\s]+\\.[^\\s]+$")
+	userDotRegexp       = regexp.MustCompile("(^[.]{1})|([.]{1}$)|([.]{2,})")
+	rxEmail             = regexp.MustCompile(Email)
+	rxCreditCard        = regexp.MustCompile(CreditCard)
+	rxISBN10            = regexp.MustCompile(ISBN10)
+	rxISBN13            = regexp.MustCompile(ISBN13)
+	rxUUID3             = regexp.MustCompile(UUID3)
+	rxUUID4             = regexp.MustCompile(UUID4)
+	rxUUID5             = regexp.MustCompile(UUID5)
+	rxUUID              = regexp.MustCompile(UUID)
+	rxAlpha             = regexp.MustCompile(Alpha)
+	rxAlphanumeric      = regexp.MustCompile(Alphanumeric)
+	rxNumeric           = regexp.MustCompile(Numeric)
+	rxInt               = regexp.MustCompile(Int)
+	rxFloat             = regexp.MustCompile(Float)
+	rxHexadecimal       = regexp.MustCompile(Hexadecimal)
+	rxHexcolor          = regexp.MustCompile(Hexcolor)
+	rxRGBcolor          = regexp.MustCompile(RGBcolor)
+	rxASCII             = regexp.MustCompile(ASCII)
+	rxPrintableASCII    = regexp.MustCompile(PrintableASCII)
+	rxMultibyte         = regexp.MustCompile(Multibyte)
+	rxFullWidth         = regexp.MustCompile(FullWidth)
+	rxHalfWidth         = regexp.MustCompile(HalfWidth)
+	rxBase64            = regexp.MustCompile(Base64)
+	rxDataURI           = regexp.MustCompile(DataURI)
+	rxMagnetURI         = regexp.MustCompile(MagnetURI)
+	rxLatitude          = regexp.MustCompile(Latitude)
+	rxLongitude         = regexp.MustCompile(Longitude)
+	rxDNSName           = regexp.MustCompile(DNSName)
+	rxURL               = regexp.MustCompile(URL)
+	rxSSN               = regexp.MustCompile(SSN)
+	rxWinPath           = regexp.MustCompile(WinPath)
+	rxUnixPath          = regexp.MustCompile(UnixPath)
+	rxARWinPath         = regexp.MustCompile(WinARPath)
+	rxARUnixPath        = regexp.MustCompile(UnixARPath)
+	rxSemver            = regexp.MustCompile(Semver)
+	rxHasLowerCase      = regexp.MustCompile(hasLowerCase)
+	rxHasUpperCase      = regexp.MustCompile(hasUpperCase)
+	rxHasWhitespace     = regexp.MustCompile(hasWhitespace)
+	rxHasWhitespaceOnly = regexp.MustCompile(hasWhitespaceOnly)
+	rxIMEI              = regexp.MustCompile(IMEI)
+	rxIMSI              = regexp.MustCompile(IMSI)
+	rxE164              = regexp.MustCompile(E164)
+)

vendor/github.com/asaskevich/govalidator/types.go

@@ -0,0 +1,656 @@
+package govalidator
+
+import (
+	"reflect"
+	"regexp"
+	"sort"
+	"sync"
+)
+
+// Validator is a wrapper for a validator function that returns bool and accepts string.
+type Validator func(str string) bool
+
+// CustomTypeValidator is a wrapper for validator functions that returns bool and accepts any type.
+// The second parameter should be the context (in the case of validating a struct: the whole object being validated).
+type CustomTypeValidator func(i interface{}, o interface{}) bool
+
+// ParamValidator is a wrapper for validator functions that accept additional parameters.
+type ParamValidator func(str string, params ...string) bool
+
+// InterfaceParamValidator is a wrapper for functions that accept variants parameters for an interface value
+type InterfaceParamValidator func(in interface{}, params ...string) bool
+type tagOptionsMap map[string]tagOption
+
+func (t tagOptionsMap) orderedKeys() []string {
+	var keys []string
+	for k := range t {
+		keys = append(keys, k)
+	}
+
+	sort.Slice(keys, func(a, b int) bool {
+		return t[keys[a]].order < t[keys[b]].order
+	})
+
+	return keys
+}
+
+type tagOption struct {
+	name               string
+	customErrorMessage string
+	order              int
+}
+
+// UnsupportedTypeError is a wrapper for reflect.Type
+type UnsupportedTypeError struct {
+	Type reflect.Type
+}
+
+// stringValues is a slice of reflect.Value holding *reflect.StringValue.
+// It implements the methods to sort by string.
+type stringValues []reflect.Value
+
+// InterfaceParamTagMap is a map of functions accept variants parameters for an interface value
+var InterfaceParamTagMap = map[string]InterfaceParamValidator{
+	"type": IsType,
+}
+
+// InterfaceParamTagRegexMap maps interface param tags to their respective regexes.
+var InterfaceParamTagRegexMap = map[string]*regexp.Regexp{
+	"type": regexp.MustCompile(`^type\((.*)\)$`),
+}
+
+// ParamTagMap is a map of functions accept variants parameters
+var ParamTagMap = map[string]ParamValidator{
+	"length":          ByteLength,
+	"range":           Range,
+	"runelength":      RuneLength,
+	"stringlength":    StringLength,
+	"matches":         StringMatches,
+	"in":              IsInRaw,
+	"rsapub":          IsRsaPub,
+	"minstringlength": MinStringLength,
+	"maxstringlength": MaxStringLength,
+}
+
+// ParamTagRegexMap maps param tags to their respective regexes.
+var ParamTagRegexMap = map[string]*regexp.Regexp{
+	"range":           regexp.MustCompile("^range\\((\\d+)\\|(\\d+)\\)$"),
+	"length":          regexp.MustCompile("^length\\((\\d+)\\|(\\d+)\\)$"),
+	"runelength":      regexp.MustCompile("^runelength\\((\\d+)\\|(\\d+)\\)$"),
+	"stringlength":    regexp.MustCompile("^stringlength\\((\\d+)\\|(\\d+)\\)$"),
+	"in":              regexp.MustCompile(`^in\((.*)\)`),
+	"matches":         regexp.MustCompile(`^matches\((.+)\)$`),
+	"rsapub":          regexp.MustCompile("^rsapub\\((\\d+)\\)$"),
+	"minstringlength": regexp.MustCompile("^minstringlength\\((\\d+)\\)$"),
+	"maxstringlength": regexp.MustCompile("^maxstringlength\\((\\d+)\\)$"),
+}
+
+type customTypeTagMap struct {
+	validators map[string]CustomTypeValidator
+
+	sync.RWMutex
+}
+
+func (tm *customTypeTagMap) Get(name string) (CustomTypeValidator, bool) {
+	tm.RLock()
+	defer tm.RUnlock()
+	v, ok := tm.validators[name]
+	return v, ok
+}
+
+func (tm *customTypeTagMap) Set(name string, ctv CustomTypeValidator) {
+	tm.Lock()
+	defer tm.Unlock()
+	tm.validators[name] = ctv
+}
+
+// CustomTypeTagMap is a map of functions that can be used as tags for ValidateStruct function.
+// Use this to validate compound or custom types that need to be handled as a whole, e.g.
+// `type UUID [16]byte` (this would be handled as an array of bytes).
+var CustomTypeTagMap = &customTypeTagMap{validators: make(map[string]CustomTypeValidator)}
+
+// TagMap is a map of functions, that can be used as tags for ValidateStruct function.
+var TagMap = map[string]Validator{
+	"email":              IsEmail,
+	"url":                IsURL,
+	"dialstring":         IsDialString,
+	"requrl":             IsRequestURL,
+	"requri":             IsRequestURI,
+	"alpha":              IsAlpha,
+	"utfletter":          IsUTFLetter,
+	"alphanum":           IsAlphanumeric,
+	"utfletternum":       IsUTFLetterNumeric,
+	"numeric":            IsNumeric,
+	"utfnumeric":         IsUTFNumeric,
+	"utfdigit":           IsUTFDigit,
+	"hexadecimal":        IsHexadecimal,
+	"hexcolor":           IsHexcolor,
+	"rgbcolor":           IsRGBcolor,
+	"lowercase":          IsLowerCase,
+	"uppercase":          IsUpperCase,
+	"int":                IsInt,
+	"float":              IsFloat,
+	"null":               IsNull,
+	"notnull":            IsNotNull,
+	"uuid":               IsUUID,
+	"uuidv3":             IsUUIDv3,
+	"uuidv4":             IsUUIDv4,
+	"uuidv5":             IsUUIDv5,
+	"creditcard":         IsCreditCard,
+	"isbn10":             IsISBN10,
+	"isbn13":             IsISBN13,
+	"json":               IsJSON,
+	"multibyte":          IsMultibyte,
+	"ascii":              IsASCII,
+	"printableascii":     IsPrintableASCII,
+	"fullwidth":          IsFullWidth,
+	"halfwidth":          IsHalfWidth,
+	"variablewidth":      IsVariableWidth,
+	"base64":             IsBase64,
+	"datauri":            IsDataURI,
+	"ip":                 IsIP,
+	"port":               IsPort,
+	"ipv4":               IsIPv4,
+	"ipv6":               IsIPv6,
+	"dns":                IsDNSName,
+	"host":               IsHost,
+	"mac":                IsMAC,
+	"latitude":           IsLatitude,
+	"longitude":          IsLongitude,
+	"ssn":                IsSSN,
+	"semver":             IsSemver,
+	"rfc3339":            IsRFC3339,
+	"rfc3339WithoutZone": IsRFC3339WithoutZone,
+	"ISO3166Alpha2":      IsISO3166Alpha2,
+	"ISO3166Alpha3":      IsISO3166Alpha3,
+	"ISO4217":            IsISO4217,
+	"IMEI":               IsIMEI,
+	"ulid":               IsULID,
+}
+
+// ISO3166Entry stores country codes
+type ISO3166Entry struct {
+	EnglishShortName string
+	FrenchShortName  string
+	Alpha2Code       string
+	Alpha3Code       string
+	Numeric          string
+}
+
+//ISO3166List based on https://www.iso.org/obp/ui/#search/code/ Code Type "Officially Assigned Codes"
+var ISO3166List = []ISO3166Entry{
+	{"Afghanistan", "Afghanistan (l')", "AF", "AFG", "004"},
+	{"Albania", "Albanie (l')", "AL", "ALB", "008"},
+	{"Antarctica", "Antarctique (l')", "AQ", "ATA", "010"},
+	{"Algeria", "Algérie (l')", "DZ", "DZA", "012"},
+	{"American Samoa", "Samoa américaines (les)", "AS", "ASM", "016"},
+	{"Andorra", "Andorre (l')", "AD", "AND", "020"},
+	{"Angola", "Angola (l')", "AO", "AGO", "024"},
+	{"Antigua and Barbuda", "Antigua-et-Barbuda", "AG", "ATG", "028"},
+	{"Azerbaijan", "Azerbaïdjan (l')", "AZ", "AZE", "031"},
+	{"Argentina", "Argentine (l')", "AR", "ARG", "032"},
+	{"Australia", "Australie (l')", "AU", "AUS", "036"},
+	{"Austria", "Autriche (l')", "AT", "AUT", "040"},
+	{"Bahamas (the)", "Bahamas (les)", "BS", "BHS", "044"},
+	{"Bahrain", "Bahreïn", "BH", "BHR", "048"},
+	{"Bangladesh", "Bangladesh (le)", "BD", "BGD", "050"},
+	{"Armenia", "Arménie (l')", "AM", "ARM", "051"},
+	{"Barbados", "Barbade (la)", "BB", "BRB", "052"},
+	{"Belgium", "Belgique (la)", "BE", "BEL", "056"},
+	{"Bermuda", "Bermudes (les)", "BM", "BMU", "060"},
+	{"Bhutan", "Bhoutan (le)", "BT", "BTN", "064"},
+	{"Bolivia (Plurinational State of)", "Bolivie (État plurinational de)", "BO", "BOL", "068"},
+	{"Bosnia and Herzegovina", "Bosnie-Herzégovine (la)", "BA", "BIH", "070"},
+	{"Botswana", "Botswana (le)", "BW", "BWA", "072"},
+	{"Bouvet Island", "Bouvet (l'Île)", "BV", "BVT", "074"},
+	{"Brazil", "Brésil (le)", "BR", "BRA", "076"},
+	{"Belize", "Belize (le)", "BZ", "BLZ", "084"},
+	{"British Indian Ocean Territory (the)", "Indien (le Territoire britannique de l'océan)", "IO", "IOT", "086"},
+	{"Solomon Islands", "Salomon (Îles)", "SB", "SLB", "090"},
+	{"Virgin Islands (British)", "Vierges britanniques (les Îles)", "VG", "VGB", "092"},
+	{"Brunei Darussalam", "Brunéi Darussalam (le)", "BN", "BRN", "096"},
+	{"Bulgaria", "Bulgarie (la)", "BG", "BGR", "100"},
+	{"Myanmar", "Myanmar (le)", "MM", "MMR", "104"},
+	{"Burundi", "Burundi (le)", "BI", "BDI", "108"},
+	{"Belarus", "Bélarus (le)", "BY", "BLR", "112"},
+	{"Cambodia", "Cambodge (le)", "KH", "KHM", "116"},
+	{"Cameroon", "Cameroun (le)", "CM", "CMR", "120"},
+	{"Canada", "Canada (le)", "CA", "CAN", "124"},
+	{"Cabo Verde", "Cabo Verde", "CV", "CPV", "132"},
+	{"Cayman Islands (the)", "Caïmans (les Îles)", "KY", "CYM", "136"},
+	{"Central African Republic (the)", "République centrafricaine (la)", "CF", "CAF", "140"},
+	{"Sri Lanka", "Sri Lanka", "LK", "LKA", "144"},
+	{"Chad", "Tchad (le)", "TD", "TCD", "148"},
+	{"Chile", "Chili (le)", "CL", "CHL", "152"},
+	{"China", "Chine (la)", "CN", "CHN", "156"},
+	{"Taiwan (Province of China)", "Taïwan (Province de Chine)", "TW", "TWN", "158"},
+	{"Christmas Island", "Christmas (l'Île)", "CX", "CXR", "162"},
+	{"Cocos (Keeling) Islands (the)", "Cocos (les Îles)/ Keeling (les Îles)", "CC", "CCK", "166"},
+	{"Colombia", "Colombie (la)", "CO", "COL", "170"},
+	{"Comoros (the)", "Comores (les)", "KM", "COM", "174"},
+	{"Mayotte", "Mayotte", "YT", "MYT", "175"},
+	{"Congo (the)", "Congo (le)", "CG", "COG", "178"},
+	{"Congo (the Democratic Republic of the)", "Congo (la République démocratique du)", "CD", "COD", "180"},
+	{"Cook Islands (the)", "Cook (les Îles)", "CK", "COK", "184"},
+	{"Costa Rica", "Costa Rica (le)", "CR", "CRI", "188"},
+	{"Croatia", "Croatie (la)", "HR", "HRV", "191"},
+	{"Cuba", "Cuba", "CU", "CUB", "192"},
+	{"Cyprus", "Chypre", "CY", "CYP", "196"},
+	{"Czech Republic (the)", "tchèque (la République)", "CZ", "CZE", "203"},
+	{"Benin", "Bénin (le)", "BJ", "BEN", "204"},
+	{"Denmark", "Danemark (le)", "DK", "DNK", "208"},
+	{"Dominica", "Dominique (la)", "DM", "DMA", "212"},
+	{"Dominican Republic (the)", "dominicaine (la République)", "DO", "DOM", "214"},
+	{"Ecuador", "Équateur (l')", "EC", "ECU", "218"},
+	{"El Salvador", "El Salvador", "SV", "SLV", "222"},
+	{"Equatorial Guinea", "Guinée équatoriale (la)", "GQ", "GNQ", "226"},
+	{"Ethiopia", "Éthiopie (l')", "ET", "ETH", "231"},
+	{"Eritrea", "Érythrée (l')", "ER", "ERI", "232"},
+	{"Estonia", "Estonie (l')", "EE", "EST", "233"},
+	{"Faroe Islands (the)", "Féroé (les Îles)", "FO", "FRO", "234"},
+	{"Falkland Islands (the) [Malvinas]", "Falkland (les Îles)/Malouines (les Îles)", "FK", "FLK", "238"},
+	{"South Georgia and the South Sandwich Islands", "Géorgie du Sud-et-les Îles Sandwich du Sud (la)", "GS", "SGS", "239"},
+	{"Fiji", "Fidji (les)", "FJ", "FJI", "242"},
+	{"Finland", "Finlande (la)", "FI", "FIN", "246"},
+	{"Åland Islands", "Åland(les Îles)", "AX", "ALA", "248"},
+	{"France", "France (la)", "FR", "FRA", "250"},
+	{"French Guiana", "Guyane française (la )", "GF", "GUF", "254"},
+	{"French Polynesia", "Polynésie française (la)", "PF", "PYF", "258"},
+	{"French Southern Territories (the)", "Terres australes françaises (les)", "TF", "ATF", "260"},
+	{"Djibouti", "Djibouti", "DJ", "DJI", "262"},
+	{"Gabon", "Gabon (le)", "GA", "GAB", "266"},
+	{"Georgia", "Géorgie (la)", "GE", "GEO", "268"},
+	{"Gambia (the)", "Gambie (la)", "GM", "GMB", "270"},
+	{"Palestine, State of", "Palestine, État de", "PS", "PSE", "275"},
+	{"Germany", "Allemagne (l')", "DE", "DEU", "276"},
+	{"Ghana", "Ghana (le)", "GH", "GHA", "288"},
+	{"Gibraltar", "Gibraltar", "GI", "GIB", "292"},
+	{"Kiribati", "Kiribati", "KI", "KIR", "296"},
+	{"Greece", "Grèce (la)", "GR", "GRC", "300"},
+	{"Greenland", "Groenland (le)", "GL", "GRL", "304"},
+	{"Grenada", "Grenade (la)", "GD", "GRD", "308"},
+	{"Guadeloupe", "Guadeloupe (la)", "GP", "GLP", "312"},
+	{"Guam", "Guam", "GU", "GUM", "316"},
+	{"Guatemala", "Guatemala (le)", "GT", "GTM", "320"},
+	{"Guinea", "Guinée (la)", "GN", "GIN", "324"},
+	{"Guyana", "Guyana (le)", "GY", "GUY", "328"},
+	{"Haiti", "Haïti", "HT", "HTI", "332"},
+	{"Heard Island and McDonald Islands", "Heard-et-Îles MacDonald (l'Île)", "HM", "HMD", "334"},
+	{"Holy See (the)", "Saint-Siège (le)", "VA", "VAT", "336"},
+	{"Honduras", "Honduras (le)", "HN", "HND", "340"},
+	{"Hong Kong", "Hong Kong", "HK", "HKG", "344"},
+	{"Hungary", "Hongrie (la)", "HU", "HUN", "348"},
+	{"Iceland", "Islande (l')", "IS", "ISL", "352"},
+	{"India", "Inde (l')", "IN", "IND", "356"},
+	{"Indonesia", "Indonésie (l')", "ID", "IDN", "360"},
+	{"Iran (Islamic Republic of)", "Iran (République Islamique d')", "IR", "IRN", "364"},
+	{"Iraq", "Iraq (l')", "IQ", "IRQ", "368"},
+	{"Ireland", "Irlande (l')", "IE", "IRL", "372"},
+	{"Israel", "Israël", "IL", "ISR", "376"},
+	{"Italy", "Italie (l')", "IT", "ITA", "380"},
+	{"Côte d'Ivoire", "Côte d'Ivoire (la)", "CI", "CIV", "384"},
+	{"Jamaica", "Jamaïque (la)", "JM", "JAM", "388"},
+	{"Japan", "Japon (le)", "JP", "JPN", "392"},
+	{"Kazakhstan", "Kazakhstan (le)", "KZ", "KAZ", "398"},
+	{"Jordan", "Jordanie (la)", "JO", "JOR", "400"},
+	{"Kenya", "Kenya (le)", "KE", "KEN", "404"},
+	{"Korea (the Democratic People's Republic of)", "Corée (la République populaire démocratique de)", "KP", "PRK", "408"},
+	{"Korea (the Republic of)", "Corée (la République de)", "KR", "KOR", "410"},
+	{"Kuwait", "Koweït (le)", "KW", "KWT", "414"},
+	{"Kyrgyzstan", "Kirghizistan (le)", "KG", "KGZ", "417"},
+	{"Lao People's Democratic Republic (the)", "Lao, République démocratique populaire", "LA", "LAO", "418"},
+	{"Lebanon", "Liban (le)", "LB", "LBN", "422"},
+	{"Lesotho", "Lesotho (le)", "LS", "LSO", "426"},
+	{"Latvia", "Lettonie (la)", "LV", "LVA", "428"},
+	{"Liberia", "Libéria (le)", "LR", "LBR", "430"},
+	{"Libya", "Libye (la)", "LY", "LBY", "434"},
+	{"Liechtenstein", "Liechtenstein (le)", "LI", "LIE", "438"},
+	{"Lithuania", "Lituanie (la)", "LT", "LTU", "440"},
+	{"Luxembourg", "Luxembourg (le)", "LU", "LUX", "442"},
+	{"Macao", "Macao", "MO", "MAC", "446"},
+	{"Madagascar", "Madagascar", "MG", "MDG", "450"},
+	{"Malawi", "Malawi (le)", "MW", "MWI", "454"},
+	{"Malaysia", "Malaisie (la)", "MY", "MYS", "458"},
+	{"Maldives", "Maldives (les)", "MV", "MDV", "462"},
+	{"Mali", "Mali (le)", "ML", "MLI", "466"},
+	{"Malta", "Malte", "MT", "MLT", "470"},
+	{"Martinique", "Martinique (la)", "MQ", "MTQ", "474"},
+	{"Mauritania", "Mauritanie (la)", "MR", "MRT", "478"},
+	{"Mauritius", "Maurice", "MU", "MUS", "480"},
+	{"Mexico", "Mexique (le)", "MX", "MEX", "484"},
+	{"Monaco", "Monaco", "MC", "MCO", "492"},
+	{"Mongolia", "Mongolie (la)", "MN", "MNG", "496"},
+	{"Moldova (the Republic of)", "Moldova , République de", "MD", "MDA", "498"},
+	{"Montenegro", "Monténégro (le)", "ME", "MNE", "499"},
+	{"Montserrat", "Montserrat", "MS", "MSR", "500"},
+	{"Morocco", "Maroc (le)", "MA", "MAR", "504"},
+	{"Mozambique", "Mozambique (le)", "MZ", "MOZ", "508"},
+	{"Oman", "Oman", "OM", "OMN", "512"},
+	{"Namibia", "Namibie (la)", "NA", "NAM", "516"},
+	{"Nauru", "Nauru", "NR", "NRU", "520"},
+	{"Nepal", "Népal (le)", "NP", "NPL", "524"},
+	{"Netherlands (the)", "Pays-Bas (les)", "NL", "NLD", "528"},
+	{"Curaçao", "Curaçao", "CW", "CUW", "531"},
+	{"Aruba", "Aruba", "AW", "ABW", "533"},
+	{"Sint Maarten (Dutch part)", "Saint-Martin (partie néerlandaise)", "SX", "SXM", "534"},
+	{"Bonaire, Sint Eustatius and Saba", "Bonaire, Saint-Eustache et Saba", "BQ", "BES", "535"},
+	{"New Caledonia", "Nouvelle-Calédonie (la)", "NC", "NCL", "540"},
+	{"Vanuatu", "Vanuatu (le)", "VU", "VUT", "548"},
+	{"New Zealand", "Nouvelle-Zélande (la)", "NZ", "NZL", "554"},
+	{"Nicaragua", "Nicaragua (le)", "NI", "NIC", "558"},
+	{"Niger (the)", "Niger (le)", "NE", "NER", "562"},
+	{"Nigeria", "Nigéria (le)", "NG", "NGA", "566"},
+	{"Niue", "Niue", "NU", "NIU", "570"},
+	{"Norfolk Island", "Norfolk (l'Île)", "NF", "NFK", "574"},
+	{"Norway", "Norvège (la)", "NO", "NOR", "578"},
+	{"Northern Mariana Islands (the)", "Mariannes du Nord (les Îles)", "MP", "MNP", "580"},
+	{"United States Minor Outlying Islands (the)", "Îles mineures éloignées des États-Unis (les)", "UM", "UMI", "581"},
+	{"Micronesia (Federated States of)", "Micronésie (États fédérés de)", "FM", "FSM", "583"},
+	{"Marshall Islands (the)", "Marshall (Îles)", "MH", "MHL", "584"},
+	{"Palau", "Palaos (les)", "PW", "PLW", "585"},
+	{"Pakistan", "Pakistan (le)", "PK", "PAK", "586"},
+	{"Panama", "Panama (le)", "PA", "PAN", "591"},
+	{"Papua New Guinea", "Papouasie-Nouvelle-Guinée (la)", "PG", "PNG", "598"},
+	{"Paraguay", "Paraguay (le)", "PY", "PRY", "600"},
+	{"Peru", "Pérou (le)", "PE", "PER", "604"},
+	{"Philippines (the)", "Philippines (les)", "PH", "PHL", "608"},
+	{"Pitcairn", "Pitcairn", "PN", "PCN", "612"},
+	{"Poland", "Pologne (la)", "PL", "POL", "616"},
+	{"Portugal", "Portugal (le)", "PT", "PRT", "620"},
+	{"Guinea-Bissau", "Guinée-Bissau (la)", "GW", "GNB", "624"},
+	{"Timor-Leste", "Timor-Leste (le)", "TL", "TLS", "626"},
+	{"Puerto Rico", "Porto Rico", "PR", "PRI", "630"},
+	{"Qatar", "Qatar (le)", "QA", "QAT", "634"},
+	{"Réunion", "Réunion (La)", "RE", "REU", "638"},
+	{"Romania", "Roumanie (la)", "RO", "ROU", "642"},
+	{"Russian Federation (the)", "Russie (la Fédération de)", "RU", "RUS", "643"},
+	{"Rwanda", "Rwanda (le)", "RW", "RWA", "646"},
+	{"Saint Barthélemy", "Saint-Barthélemy", "BL", "BLM", "652"},
+	{"Saint Helena, Ascension and Tristan da Cunha", "Sainte-Hélène, Ascension et Tristan da Cunha", "SH", "SHN", "654"},
+	{"Saint Kitts and Nevis", "Saint-Kitts-et-Nevis", "KN", "KNA", "659"},
+	{"Anguilla", "Anguilla", "AI", "AIA", "660"},
+	{"Saint Lucia", "Sainte-Lucie", "LC", "LCA", "662"},
+	{"Saint Martin (French part)", "Saint-Martin (partie française)", "MF", "MAF", "663"},
+	{"Saint Pierre and Miquelon", "Saint-Pierre-et-Miquelon", "PM", "SPM", "666"},
+	{"Saint Vincent and the Grenadines", "Saint-Vincent-et-les Grenadines", "VC", "VCT", "670"},
+	{"San Marino", "Saint-Marin", "SM", "SMR", "674"},
+	{"Sao Tome and Principe", "Sao Tomé-et-Principe", "ST", "STP", "678"},
+	{"Saudi Arabia", "Arabie saoudite (l')", "SA", "SAU", "682"},
+	{"Senegal", "Sénégal (le)", "SN", "SEN", "686"},
+	{"Serbia", "Serbie (la)", "RS", "SRB", "688"},
+	{"Seychelles", "Seychelles (les)", "SC", "SYC", "690"},
+	{"Sierra Leone", "Sierra Leone (la)", "SL", "SLE", "694"},
+	{"Singapore", "Singapour", "SG", "SGP", "702"},
+	{"Slovakia", "Slovaquie (la)", "SK", "SVK", "703"},
+	{"Viet Nam", "Viet Nam (le)", "VN", "VNM", "704"},
+	{"Slovenia", "Slovénie (la)", "SI", "SVN", "705"},
+	{"Somalia", "Somalie (la)", "SO", "SOM", "706"},
+	{"South Africa", "Afrique du Sud (l')", "ZA", "ZAF", "710"},
+	{"Zimbabwe", "Zimbabwe (le)", "ZW", "ZWE", "716"},
+	{"Spain", "Espagne (l')", "ES", "ESP", "724"},
+	{"South Sudan", "Soudan du Sud (le)", "SS", "SSD", "728"},
+	{"Sudan (the)", "Soudan (le)", "SD", "SDN", "729"},
+	{"Western Sahara*", "Sahara occidental (le)*", "EH", "ESH", "732"},
+	{"Suriname", "Suriname (le)", "SR", "SUR", "740"},
+	{"Svalbard and Jan Mayen", "Svalbard et l'Île Jan Mayen (le)", "SJ", "SJM", "744"},
+	{"Swaziland", "Swaziland (le)", "SZ", "SWZ", "748"},
+	{"Sweden", "Suède (la)", "SE", "SWE", "752"},
+	{"Switzerland", "Suisse (la)", "CH", "CHE", "756"},
+	{"Syrian Arab Republic", "République arabe syrienne (la)", "SY", "SYR", "760"},
+	{"Tajikistan", "Tadjikistan (le)", "TJ", "TJK", "762"},
+	{"Thailand", "Thaïlande (la)", "TH", "THA", "764"},
+	{"Togo", "Togo (le)", "TG", "TGO", "768"},
+	{"Tokelau", "Tokelau (les)", "TK", "TKL", "772"},
+	{"Tonga", "Tonga (les)", "TO", "TON", "776"},
+	{"Trinidad and Tobago", "Trinité-et-Tobago (la)", "TT", "TTO", "780"},
+	{"United Arab Emirates (the)", "Émirats arabes unis (les)", "AE", "ARE", "784"},
+	{"Tunisia", "Tunisie (la)", "TN", "TUN", "788"},
+	{"Turkey", "Turquie (la)", "TR", "TUR", "792"},
+	{"Turkmenistan", "Turkménistan (le)", "TM", "TKM", "795"},
+	{"Turks and Caicos Islands (the)", "Turks-et-Caïcos (les Îles)", "TC", "TCA", "796"},
+	{"Tuvalu", "Tuvalu (les)", "TV", "TUV", "798"},
+	{"Uganda", "Ouganda (l')", "UG", "UGA", "800"},
+	{"Ukraine", "Ukraine (l')", "UA", "UKR", "804"},
+	{"Macedonia (the former Yugoslav Republic of)", "Macédoine (l'ex‑République yougoslave de)", "MK", "MKD", "807"},
+	{"Egypt", "Égypte (l')", "EG", "EGY", "818"},
+	{"United Kingdom of Great Britain and Northern Ireland (the)", "Royaume-Uni de Grande-Bretagne et d'Irlande du Nord (le)", "GB", "GBR", "826"},
+	{"Guernsey", "Guernesey", "GG", "GGY", "831"},
+	{"Jersey", "Jersey", "JE", "JEY", "832"},
+	{"Isle of Man", "Île de Man", "IM", "IMN", "833"},
+	{"Tanzania, United Republic of", "Tanzanie, République-Unie de", "TZ", "TZA", "834"},
+	{"United States of America (the)", "États-Unis d'Amérique (les)", "US", "USA", "840"},
+	{"Virgin Islands (U.S.)", "Vierges des États-Unis (les Îles)", "VI", "VIR", "850"},
+	{"Burkina Faso", "Burkina Faso (le)", "BF", "BFA", "854"},
+	{"Uruguay", "Uruguay (l')", "UY", "URY", "858"},
+	{"Uzbekistan", "Ouzbékistan (l')", "UZ", "UZB", "860"},
+	{"Venezuela (Bolivarian Republic of)", "Venezuela (République bolivarienne du)", "VE", "VEN", "862"},
+	{"Wallis and Futuna", "Wallis-et-Futuna", "WF", "WLF", "876"},
+	{"Samoa", "Samoa (le)", "WS", "WSM", "882"},
+	{"Yemen", "Yémen (le)", "YE", "YEM", "887"},
+	{"Zambia", "Zambie (la)", "ZM", "ZMB", "894"},
+}
+
+// ISO4217List is the list of ISO currency codes
+var ISO4217List = []string{
+	"AED", "AFN", "ALL", "AMD", "ANG", "AOA", "ARS", "AUD", "AWG", "AZN",
+	"BAM", "BBD", "BDT", "BGN", "BHD", "BIF", "BMD", "BND", "BOB", "BOV", "BRL", "BSD", "BTN", "BWP", "BYN", "BZD",
+	"CAD", "CDF", "CHE", "CHF", "CHW", "CLF", "CLP", "CNY", "COP", "COU", "CRC", "CUC", "CUP", "CVE", "CZK",
+	"DJF", "DKK", "DOP", "DZD",
+	"EGP", "ERN", "ETB", "EUR",
+	"FJD", "FKP",
+	"GBP", "GEL", "GHS", "GIP", "GMD", "GNF", "GTQ", "GYD",
+	"HKD", "HNL", "HRK", "HTG", "HUF",
+	"IDR", "ILS", "INR", "IQD", "IRR", "ISK",
+	"JMD", "JOD", "JPY",
+	"KES", "KGS", "KHR", "KMF", "KPW", "KRW", "KWD", "KYD", "KZT",
+	"LAK", "LBP", "LKR", "LRD", "LSL", "LYD",
+	"MAD", "MDL", "MGA", "MKD", "MMK", "MNT", "MOP", "MRO", "MUR", "MVR", "MWK", "MXN", "MXV", "MYR", "MZN",
+	"NAD", "NGN", "NIO", "NOK", "NPR", "NZD",
+	"OMR",
+	"PAB", "PEN", "PGK", "PHP", "PKR", "PLN", "PYG",
+	"QAR",
+	"RON", "RSD", "RUB", "RWF",
+	"SAR", "SBD", "SCR", "SDG", "SEK", "SGD", "SHP", "SLL", "SOS", "SRD", "SSP", "STD", "STN", "SVC", "SYP", "SZL",
+	"THB", "TJS", "TMT", "TND", "TOP", "TRY", "TTD", "TWD", "TZS",
+	"UAH", "UGX", "USD", "USN", "UYI", "UYU", "UYW", "UZS",
+	"VEF", "VES", "VND", "VUV",
+	"WST",
+	"XAF", "XAG", "XAU", "XBA", "XBB", "XBC", "XBD", "XCD", "XDR", "XOF", "XPD", "XPF", "XPT", "XSU", "XTS", "XUA", "XXX",
+	"YER",
+	"ZAR", "ZMW", "ZWL",
+}
+
+// ISO693Entry stores ISO language codes
+type ISO693Entry struct {
+	Alpha3bCode string
+	Alpha2Code  string
+	English     string
+}
+
+//ISO693List based on http://data.okfn.org/data/core/language-codes/r/language-codes-3b2.json
+var ISO693List = []ISO693Entry{
+	{Alpha3bCode: "aar", Alpha2Code: "aa", English: "Afar"},
+	{Alpha3bCode: "abk", Alpha2Code: "ab", English: "Abkhazian"},
+	{Alpha3bCode: "afr", Alpha2Code: "af", English: "Afrikaans"},
+	{Alpha3bCode: "aka", Alpha2Code: "ak", English: "Akan"},
+	{Alpha3bCode: "alb", Alpha2Code: "sq", English: "Albanian"},
+	{Alpha3bCode: "amh", Alpha2Code: "am", English: "Amharic"},
+	{Alpha3bCode: "ara", Alpha2Code: "ar", English: "Arabic"},
+	{Alpha3bCode: "arg", Alpha2Code: "an", English: "Aragonese"},
+	{Alpha3bCode: "arm", Alpha2Code: "hy", English: "Armenian"},
+	{Alpha3bCode: "asm", Alpha2Code: "as", English: "Assamese"},
+	{Alpha3bCode: "ava", Alpha2Code: "av", English: "Avaric"},
+	{Alpha3bCode: "ave", Alpha2Code: "ae", English: "Avestan"},
+	{Alpha3bCode: "aym", Alpha2Code: "ay", English: "Aymara"},
+	{Alpha3bCode: "aze", Alpha2Code: "az", English: "Azerbaijani"},
+	{Alpha3bCode: "bak", Alpha2Code: "ba", English: "Bashkir"},
+	{Alpha3bCode: "bam", Alpha2Code: "bm", English: "Bambara"},
+	{Alpha3bCode: "baq", Alpha2Code: "eu", English: "Basque"},
+	{Alpha3bCode: "bel", Alpha2Code: "be", English: "Belarusian"},
+	{Alpha3bCode: "ben", Alpha2Code: "bn", English: "Bengali"},
+	{Alpha3bCode: "bih", Alpha2Code: "bh", English: "Bihari languages"},
+	{Alpha3bCode: "bis", Alpha2Code: "bi", English: "Bislama"},
+	{Alpha3bCode: "bos", Alpha2Code: "bs", English: "Bosnian"},
+	{Alpha3bCode: "bre", Alpha2Code: "br", English: "Breton"},
+	{Alpha3bCode: "bul", Alpha2Code: "bg", English: "Bulgarian"},
+	{Alpha3bCode: "bur", Alpha2Code: "my", English: "Burmese"},
+	{Alpha3bCode: "cat", Alpha2Code: "ca", English: "Catalan; Valencian"},
+	{Alpha3bCode: "cha", Alpha2Code: "ch", English: "Chamorro"},
+	{Alpha3bCode: "che", Alpha2Code: "ce", English: "Chechen"},
+	{Alpha3bCode: "chi", Alpha2Code: "zh", English: "Chinese"},
+	{Alpha3bCode: "chu", Alpha2Code: "cu", English: "Church Slavic; Old Slavonic; Church Slavonic; Old Bulgarian; Old Church Slavonic"},
+	{Alpha3bCode: "chv", Alpha2Code: "cv", English: "Chuvash"},
+	{Alpha3bCode: "cor", Alpha2Code: "kw", English: "Cornish"},
+	{Alpha3bCode: "cos", Alpha2Code: "co", English: "Corsican"},
+	{Alpha3bCode: "cre", Alpha2Code: "cr", English: "Cree"},
+	{Alpha3bCode: "cze", Alpha2Code: "cs", English: "Czech"},
+	{Alpha3bCode: "dan", Alpha2Code: "da", English: "Danish"},
+	{Alpha3bCode: "div", Alpha2Code: "dv", English: "Divehi; Dhivehi; Maldivian"},
+	{Alpha3bCode: "dut", Alpha2Code: "nl", English: "Dutch; Flemish"},
+	{Alpha3bCode: "dzo", Alpha2Code: "dz", English: "Dzongkha"},
+	{Alpha3bCode: "eng", Alpha2Code: "en", English: "English"},
+	{Alpha3bCode: "epo", Alpha2Code: "eo", English: "Esperanto"},
+	{Alpha3bCode: "est", Alpha2Code: "et", English: "Estonian"},
+	{Alpha3bCode: "ewe", Alpha2Code: "ee", English: "Ewe"},
+	{Alpha3bCode: "fao", Alpha2Code: "fo", English: "Faroese"},
+	{Alpha3bCode: "fij", Alpha2Code: "fj", English: "Fijian"},
+	{Alpha3bCode: "fin", Alpha2Code: "fi", English: "Finnish"},
+	{Alpha3bCode: "fre", Alpha2Code: "fr", English: "French"},
+	{Alpha3bCode: "fry", Alpha2Code: "fy", English: "Western Frisian"},
+	{Alpha3bCode: "ful", Alpha2Code: "ff", English: "Fulah"},
+	{Alpha3bCode: "geo", Alpha2Code: "ka", English: "Georgian"},
+	{Alpha3bCode: "ger", Alpha2Code: "de", English: "German"},
+	{Alpha3bCode: "gla", Alpha2Code: "gd", English: "Gaelic; Scottish Gaelic"},
+	{Alpha3bCode: "gle", Alpha2Code: "ga", English: "Irish"},
+	{Alpha3bCode: "glg", Alpha2Code: "gl", English: "Galician"},
+	{Alpha3bCode: "glv", Alpha2Code: "gv", English: "Manx"},
+	{Alpha3bCode: "gre", Alpha2Code: "el", English: "Greek, Modern (1453-)"},
+	{Alpha3bCode: "grn", Alpha2Code: "gn", English: "Guarani"},
+	{Alpha3bCode: "guj", Alpha2Code: "gu", English: "Gujarati"},
+	{Alpha3bCode: "hat", Alpha2Code: "ht", English: "Haitian; Haitian Creole"},
+	{Alpha3bCode: "hau", Alpha2Code: "ha", English: "Hausa"},
+	{Alpha3bCode: "heb", Alpha2Code: "he", English: "Hebrew"},
+	{Alpha3bCode: "her", Alpha2Code: "hz", English: "Herero"},
+	{Alpha3bCode: "hin", Alpha2Code: "hi", English: "Hindi"},
+	{Alpha3bCode: "hmo", Alpha2Code: "ho", English: "Hiri Motu"},
+	{Alpha3bCode: "hrv", Alpha2Code: "hr", English: "Croatian"},
+	{Alpha3bCode: "hun", Alpha2Code: "hu", English: "Hungarian"},
+	{Alpha3bCode: "ibo", Alpha2Code: "ig", English: "Igbo"},
+	{Alpha3bCode: "ice", Alpha2Code: "is", English: "Icelandic"},
+	{Alpha3bCode: "ido", Alpha2Code: "io", English: "Ido"},
+	{Alpha3bCode: "iii", Alpha2Code: "ii", English: "Sichuan Yi; Nuosu"},
+	{Alpha3bCode: "iku", Alpha2Code: "iu", English: "Inuktitut"},
+	{Alpha3bCode: "ile", Alpha2Code: "ie", English: "Interlingue; Occidental"},
+	{Alpha3bCode: "ina", Alpha2Code: "ia", English: "Interlingua (International Auxiliary Language Association)"},
+	{Alpha3bCode: "ind", Alpha2Code: "id", English: "Indonesian"},
+	{Alpha3bCode: "ipk", Alpha2Code: "ik", English: "Inupiaq"},
+	{Alpha3bCode: "ita", Alpha2Code: "it", English: "Italian"},
+	{Alpha3bCode: "jav", Alpha2Code: "jv", English: "Javanese"},
+	{Alpha3bCode: "jpn", Alpha2Code: "ja", English: "Japanese"},
+	{Alpha3bCode: "kal", Alpha2Code: "kl", English: "Kalaallisut; Greenlandic"},
+	{Alpha3bCode: "kan", Alpha2Code: "kn", English: "Kannada"},
+	{Alpha3bCode: "kas", Alpha2Code: "ks", English: "Kashmiri"},
+	{Alpha3bCode: "kau", Alpha2Code: "kr", English: "Kanuri"},
+	{Alpha3bCode: "kaz", Alpha2Code: "kk", English: "Kazakh"},
+	{Alpha3bCode: "khm", Alpha2Code: "km", English: "Central Khmer"},
+	{Alpha3bCode: "kik", Alpha2Code: "ki", English: "Kikuyu; Gikuyu"},
+	{Alpha3bCode: "kin", Alpha2Code: "rw", English: "Kinyarwanda"},
+	{Alpha3bCode: "kir", Alpha2Code: "ky", English: "Kirghiz; Kyrgyz"},
+	{Alpha3bCode: "kom", Alpha2Code: "kv", English: "Komi"},
+	{Alpha3bCode: "kon", Alpha2Code: "kg", English: "Kongo"},
+	{Alpha3bCode: "kor", Alpha2Code: "ko", English: "Korean"},
+	{Alpha3bCode: "kua", Alpha2Code: "kj", English: "Kuanyama; Kwanyama"},
+	{Alpha3bCode: "kur", Alpha2Code: "ku", English: "Kurdish"},
+	{Alpha3bCode: "lao", Alpha2Code: "lo", English: "Lao"},
+	{Alpha3bCode: "lat", Alpha2Code: "la", English: "Latin"},
+	{Alpha3bCode: "lav", Alpha2Code: "lv", English: "Latvian"},
+	{Alpha3bCode: "lim", Alpha2Code: "li", English: "Limburgan; Limburger; Limburgish"},
+	{Alpha3bCode: "lin", Alpha2Code: "ln", English: "Lingala"},
+	{Alpha3bCode: "lit", Alpha2Code: "lt", English: "Lithuanian"},
+	{Alpha3bCode: "ltz", Alpha2Code: "lb", English: "Luxembourgish; Letzeburgesch"},
+	{Alpha3bCode: "lub", Alpha2Code: "lu", English: "Luba-Katanga"},
+	{Alpha3bCode: "lug", Alpha2Code: "lg", English: "Ganda"},
+	{Alpha3bCode: "mac", Alpha2Code: "mk", English: "Macedonian"},
+	{Alpha3bCode: "mah", Alpha2Code: "mh", English: "Marshallese"},
+	{Alpha3bCode: "mal", Alpha2Code: "ml", English: "Malayalam"},
+	{Alpha3bCode: "mao", Alpha2Code: "mi", English: "Maori"},
+	{Alpha3bCode: "mar", Alpha2Code: "mr", English: "Marathi"},
+	{Alpha3bCode: "may", Alpha2Code: "ms", English: "Malay"},
+	{Alpha3bCode: "mlg", Alpha2Code: "mg", English: "Malagasy"},
+	{Alpha3bCode: "mlt", Alpha2Code: "mt", English: "Maltese"},
+	{Alpha3bCode: "mon", Alpha2Code: "mn", English: "Mongolian"},
+	{Alpha3bCode: "nau", Alpha2Code: "na", English: "Nauru"},
+	{Alpha3bCode: "nav", Alpha2Code: "nv", English: "Navajo; Navaho"},
+	{Alpha3bCode: "nbl", Alpha2Code: "nr", English: "Ndebele, South; South Ndebele"},
+	{Alpha3bCode: "nde", Alpha2Code: "nd", English: "Ndebele, North; North Ndebele"},
+	{Alpha3bCode: "ndo", Alpha2Code: "ng", English: "Ndonga"},
+	{Alpha3bCode: "nep", Alpha2Code: "ne", English: "Nepali"},
+	{Alpha3bCode: "nno", Alpha2Code: "nn", English: "Norwegian Nynorsk; Nynorsk, Norwegian"},
+	{Alpha3bCode: "nob", Alpha2Code: "nb", English: "Bokmål, Norwegian; Norwegian Bokmål"},
+	{Alpha3bCode: "nor", Alpha2Code: "no", English: "Norwegian"},
+	{Alpha3bCode: "nya", Alpha2Code: "ny", English: "Chichewa; Chewa; Nyanja"},
+	{Alpha3bCode: "oci", Alpha2Code: "oc", English: "Occitan (post 1500); Provençal"},
+	{Alpha3bCode: "oji", Alpha2Code: "oj", English: "Ojibwa"},
+	{Alpha3bCode: "ori", Alpha2Code: "or", English: "Oriya"},
+	{Alpha3bCode: "orm", Alpha2Code: "om", English: "Oromo"},
+	{Alpha3bCode: "oss", Alpha2Code: "os", English: "Ossetian; Ossetic"},
+	{Alpha3bCode: "pan", Alpha2Code: "pa", English: "Panjabi; Punjabi"},
+	{Alpha3bCode: "per", Alpha2Code: "fa", English: "Persian"},
+	{Alpha3bCode: "pli", Alpha2Code: "pi", English: "Pali"},
+	{Alpha3bCode: "pol", Alpha2Code: "pl", English: "Polish"},
+	{Alpha3bCode: "por", Alpha2Code: "pt", English: "Portuguese"},
+	{Alpha3bCode: "pus", Alpha2Code: "ps", English: "Pushto; Pashto"},
+	{Alpha3bCode: "que", Alpha2Code: "qu", English: "Quechua"},
+	{Alpha3bCode: "roh", Alpha2Code: "rm", English: "Romansh"},
+	{Alpha3bCode: "rum", Alpha2Code: "ro", English: "Romanian; Moldavian; Moldovan"},
+	{Alpha3bCode: "run", Alpha2Code: "rn", English: "Rundi"},
+	{Alpha3bCode: "rus", Alpha2Code: "ru", English: "Russian"},
+	{Alpha3bCode: "sag", Alpha2Code: "sg", English: "Sango"},
+	{Alpha3bCode: "san", Alpha2Code: "sa", English: "Sanskrit"},
+	{Alpha3bCode: "sin", Alpha2Code: "si", English: "Sinhala; Sinhalese"},
+	{Alpha3bCode: "slo", Alpha2Code: "sk", English: "Slovak"},
+	{Alpha3bCode: "slv", Alpha2Code: "sl", English: "Slovenian"},
+	{Alpha3bCode: "sme", Alpha2Code: "se", English: "Northern Sami"},
+	{Alpha3bCode: "smo", Alpha2Code: "sm", English: "Samoan"},
+	{Alpha3bCode: "sna", Alpha2Code: "sn", English: "Shona"},
+	{Alpha3bCode: "snd", Alpha2Code: "sd", English: "Sindhi"},
+	{Alpha3bCode: "som", Alpha2Code: "so", English: "Somali"},
+	{Alpha3bCode: "sot", Alpha2Code: "st", English: "Sotho, Southern"},
+	{Alpha3bCode: "spa", Alpha2Code: "es", English: "Spanish; Castilian"},
+	{Alpha3bCode: "srd", Alpha2Code: "sc", English: "Sardinian"},
+	{Alpha3bCode: "srp", Alpha2Code: "sr", English: "Serbian"},
+	{Alpha3bCode: "ssw", Alpha2Code: "ss", English: "Swati"},
+	{Alpha3bCode: "sun", Alpha2Code: "su", English: "Sundanese"},
+	{Alpha3bCode: "swa", Alpha2Code: "sw", English: "Swahili"},
+	{Alpha3bCode: "swe", Alpha2Code: "sv", English: "Swedish"},
+	{Alpha3bCode: "tah", Alpha2Code: "ty", English: "Tahitian"},
+	{Alpha3bCode: "tam", Alpha2Code: "ta", English: "Tamil"},
+	{Alpha3bCode: "tat", Alpha2Code: "tt", English: "Tatar"},
+	{Alpha3bCode: "tel", Alpha2Code: "te", English: "Telugu"},
+	{Alpha3bCode: "tgk", Alpha2Code: "tg", English: "Tajik"},
+	{Alpha3bCode: "tgl", Alpha2Code: "tl", English: "Tagalog"},
+	{Alpha3bCode: "tha", Alpha2Code: "th", English: "Thai"},
+	{Alpha3bCode: "tib", Alpha2Code: "bo", English: "Tibetan"},
+	{Alpha3bCode: "tir", Alpha2Code: "ti", English: "Tigrinya"},
+	{Alpha3bCode: "ton", Alpha2Code: "to", English: "Tonga (Tonga Islands)"},
+	{Alpha3bCode: "tsn", Alpha2Code: "tn", English: "Tswana"},
+	{Alpha3bCode: "tso", Alpha2Code: "ts", English: "Tsonga"},
+	{Alpha3bCode: "tuk", Alpha2Code: "tk", English: "Turkmen"},
+	{Alpha3bCode: "tur", Alpha2Code: "tr", English: "Turkish"},
+	{Alpha3bCode: "twi", Alpha2Code: "tw", English: "Twi"},
+	{Alpha3bCode: "uig", Alpha2Code: "ug", English: "Uighur; Uyghur"},
+	{Alpha3bCode: "ukr", Alpha2Code: "uk", English: "Ukrainian"},
+	{Alpha3bCode: "urd", Alpha2Code: "ur", English: "Urdu"},
+	{Alpha3bCode: "uzb", Alpha2Code: "uz", English: "Uzbek"},
+	{Alpha3bCode: "ven", Alpha2Code: "ve", English: "Venda"},
+	{Alpha3bCode: "vie", Alpha2Code: "vi", English: "Vietnamese"},
+	{Alpha3bCode: "vol", Alpha2Code: "vo", English: "Volapük"},
+	{Alpha3bCode: "wel", Alpha2Code: "cy", English: "Welsh"},
+	{Alpha3bCode: "wln", Alpha2Code: "wa", English: "Walloon"},
+	{Alpha3bCode: "wol", Alpha2Code: "wo", English: "Wolof"},
+	{Alpha3bCode: "xho", Alpha2Code: "xh", English: "Xhosa"},
+	{Alpha3bCode: "yid", Alpha2Code: "yi", English: "Yiddish"},
+	{Alpha3bCode: "yor", Alpha2Code: "yo", English: "Yoruba"},
+	{Alpha3bCode: "zha", Alpha2Code: "za", English: "Zhuang; Chuang"},
+	{Alpha3bCode: "zul", Alpha2Code: "zu", English: "Zulu"},
+}

vendor/github.com/asaskevich/govalidator/utils.go

@@ -0,0 +1,270 @@
+package govalidator
+
+import (
+	"errors"
+	"fmt"
+	"html"
+	"math"
+	"path"
+	"regexp"
+	"strings"
+	"unicode"
+	"unicode/utf8"
+)
+
+// Contains checks if the string contains the substring.
+func Contains(str, substring string) bool {
+	return strings.Contains(str, substring)
+}
+
+// Matches checks if string matches the pattern (pattern is regular expression)
+// In case of error return false
+func Matches(str, pattern string) bool {
+	match, _ := regexp.MatchString(pattern, str)
+	return match
+}
+
+// LeftTrim trims characters from the left side of the input.
+// If second argument is empty, it will remove leading spaces.
+func LeftTrim(str, chars string) string {
+	if chars == "" {
+		return strings.TrimLeftFunc(str, unicode.IsSpace)
+	}
+	r, _ := regexp.Compile("^[" + chars + "]+")
+	return r.ReplaceAllString(str, "")
+}
+
+// RightTrim trims characters from the right side of the input.
+// If second argument is empty, it will remove trailing spaces.
+func RightTrim(str, chars string) string {
+	if chars == "" {
+		return strings.TrimRightFunc(str, unicode.IsSpace)
+	}
+	r, _ := regexp.Compile("[" + chars + "]+$")
+	return r.ReplaceAllString(str, "")
+}
+
+// Trim trims characters from both sides of the input.
+// If second argument is empty, it will remove spaces.
+func Trim(str, chars string) string {
+	return LeftTrim(RightTrim(str, chars), chars)
+}
+
+// WhiteList removes characters that do not appear in the whitelist.
+func WhiteList(str, chars string) string {
+	pattern := "[^" + chars + "]+"
+	r, _ := regexp.Compile(pattern)
+	return r.ReplaceAllString(str, "")
+}
+
+// BlackList removes characters that appear in the blacklist.
+func BlackList(str, chars string) string {
+	pattern := "[" + chars + "]+"
+	r, _ := regexp.Compile(pattern)
+	return r.ReplaceAllString(str, "")
+}
+
+// StripLow removes characters with a numerical value < 32 and 127, mostly control characters.
+// If keep_new_lines is true, newline characters are preserved (\n and \r, hex 0xA and 0xD).
+func StripLow(str string, keepNewLines bool) string {
+	chars := ""
+	if keepNewLines {
+		chars = "\x00-\x09\x0B\x0C\x0E-\x1F\x7F"
+	} else {
+		chars = "\x00-\x1F\x7F"
+	}
+	return BlackList(str, chars)
+}
+
+// ReplacePattern replaces regular expression pattern in string
+func ReplacePattern(str, pattern, replace string) string {
+	r, _ := regexp.Compile(pattern)
+	return r.ReplaceAllString(str, replace)
+}
+
+// Escape replaces <, >, & and " with HTML entities.
+var Escape = html.EscapeString
+
+func addSegment(inrune, segment []rune) []rune {
+	if len(segment) == 0 {
+		return inrune
+	}
+	if len(inrune) != 0 {
+		inrune = append(inrune, '_')
+	}
+	inrune = append(inrune, segment...)
+	return inrune
+}
+
+// UnderscoreToCamelCase converts from underscore separated form to camel case form.
+// Ex.: my_func => MyFunc
+func UnderscoreToCamelCase(s string) string {
+	return strings.Replace(strings.Title(strings.Replace(strings.ToLower(s), "_", " ", -1)), " ", "", -1)
+}
+
+// CamelCaseToUnderscore converts from camel case form to underscore separated form.
+// Ex.: MyFunc => my_func
+func CamelCaseToUnderscore(str string) string {
+	var output []rune
+	var segment []rune
+	for _, r := range str {
+
+		// not treat number as separate segment
+		if !unicode.IsLower(r) && string(r) != "_" && !unicode.IsNumber(r) {
+			output = addSegment(output, segment)
+			segment = nil
+		}
+		segment = append(segment, unicode.ToLower(r))
+	}
+	output = addSegment(output, segment)
+	return string(output)
+}
+
+// Reverse returns reversed string
+func Reverse(s string) string {
+	r := []rune(s)
+	for i, j := 0, len(r)-1; i < j; i, j = i+1, j-1 {
+		r[i], r[j] = r[j], r[i]
+	}
+	return string(r)
+}
+
+// GetLines splits string by "\n" and return array of lines
+func GetLines(s string) []string {
+	return strings.Split(s, "\n")
+}
+
+// GetLine returns specified line of multiline string
+func GetLine(s string, index int) (string, error) {
+	lines := GetLines(s)
+	if index < 0 || index >= len(lines) {
+		return "", errors.New("line index out of bounds")
+	}
+	return lines[index], nil
+}
+
+// RemoveTags removes all tags from HTML string
+func RemoveTags(s string) string {
+	return ReplacePattern(s, "<[^>]*>", "")
+}
+
+// SafeFileName returns safe string that can be used in file names
+func SafeFileName(str string) string {
+	name := strings.ToLower(str)
+	name = path.Clean(path.Base(name))
+	name = strings.Trim(name, " ")
+	separators, err := regexp.Compile(`[ &_=+:]`)
+	if err == nil {
+		name = separators.ReplaceAllString(name, "-")
+	}
+	legal, err := regexp.Compile(`[^[:alnum:]-.]`)
+	if err == nil {
+		name = legal.ReplaceAllString(name, "")
+	}
+	for strings.Contains(name, "--") {
+		name = strings.Replace(name, "--", "-", -1)
+	}
+	return name
+}
+
+// NormalizeEmail canonicalize an email address.
+// The local part of the email address is lowercased for all domains; the hostname is always lowercased and
+// the local part of the email address is always lowercased for hosts that are known to be case-insensitive (currently only GMail).
+// Normalization follows special rules for known providers: currently, GMail addresses have dots removed in the local part and
+// are stripped of tags (e.g. some.one+tag@gmail.com becomes someone@gmail.com) and all @googlemail.com addresses are
+// normalized to @gmail.com.
+func NormalizeEmail(str string) (string, error) {
+	if !IsEmail(str) {
+		return "", fmt.Errorf("%s is not an email", str)
+	}
+	parts := strings.Split(str, "@")
+	parts[0] = strings.ToLower(parts[0])
+	parts[1] = strings.ToLower(parts[1])
+	if parts[1] == "gmail.com" || parts[1] == "googlemail.com" {
+		parts[1] = "gmail.com"
+		parts[0] = strings.Split(ReplacePattern(parts[0], `\.`, ""), "+")[0]
+	}
+	return strings.Join(parts, "@"), nil
+}
+
+// Truncate a string to the closest length without breaking words.
+func Truncate(str string, length int, ending string) string {
+	var aftstr, befstr string
+	if len(str) > length {
+		words := strings.Fields(str)
+		before, present := 0, 0
+		for i := range words {
+			befstr = aftstr
+			before = present
+			aftstr = aftstr + words[i] + " "
+			present = len(aftstr)
+			if present > length && i != 0 {
+				if (length - before) < (present - length) {
+					return Trim(befstr, " /\\.,\"'#!?&@+-") + ending
+				}
+				return Trim(aftstr, " /\\.,\"'#!?&@+-") + ending
+			}
+		}
+	}
+
+	return str
+}
+
+// PadLeft pads left side of a string if size of string is less then indicated pad length
+func PadLeft(str string, padStr string, padLen int) string {
+	return buildPadStr(str, padStr, padLen, true, false)
+}
+
+// PadRight pads right side of a string if size of string is less then indicated pad length
+func PadRight(str string, padStr string, padLen int) string {
+	return buildPadStr(str, padStr, padLen, false, true)
+}
+
+// PadBoth pads both sides of a string if size of string is less then indicated pad length
+func PadBoth(str string, padStr string, padLen int) string {
+	return buildPadStr(str, padStr, padLen, true, true)
+}
+
+// PadString either left, right or both sides.
+// Note that padding string can be unicode and more then one character
+func buildPadStr(str string, padStr string, padLen int, padLeft bool, padRight bool) string {
+
+	// When padded length is less then the current string size
+	if padLen < utf8.RuneCountInString(str) {
+		return str
+	}
+
+	padLen -= utf8.RuneCountInString(str)
+
+	targetLen := padLen
+
+	targetLenLeft := targetLen
+	targetLenRight := targetLen
+	if padLeft && padRight {
+		targetLenLeft = padLen / 2
+		targetLenRight = padLen - targetLenLeft
+	}
+
+	strToRepeatLen := utf8.RuneCountInString(padStr)
+
+	repeatTimes := int(math.Ceil(float64(targetLen) / float64(strToRepeatLen)))
+	repeatedString := strings.Repeat(padStr, repeatTimes)
+
+	leftSide := ""
+	if padLeft {
+		leftSide = repeatedString[0:targetLenLeft]
+	}
+
+	rightSide := ""
+	if padRight {
+		rightSide = repeatedString[0:targetLenRight]
+	}
+
+	return leftSide + str + rightSide
+}
+
+// TruncatingErrorf removes extra args from fmt.Errorf if not formatted in the str object
+func TruncatingErrorf(str string, args ...interface{}) error {
+	n := strings.Count(str, "%s")
+	return fmt.Errorf(str, args[:n]...)
+}

vendor/github.com/asaskevich/govalidator/wercker.yml

@@ -0,0 +1,15 @@
+box: golang
+build:
+  steps:
+    - setup-go-workspace
+
+    - script:
+        name: go get
+        code: |
+          go version
+          go get -t ./...
+
+    - script:
+        name: go test
+        code: |
+          go test -race -v ./...

vendor/github.com/beorn7/perks/LICENSE

@@ -1,20 +0,0 @@
-Copyright (C) 2013 Blake Mizerany
-
-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.

vendor/github.com/beorn7/perks/quantile/stream.go

@@ -1,316 +0,0 @@
-// Package quantile computes approximate quantiles over an unbounded data
-// stream within low memory and CPU bounds.
-//
-// A small amount of accuracy is traded to achieve the above properties.
-//
-// Multiple streams can be merged before calling Query to generate a single set
-// of results. This is meaningful when the streams represent the same type of
-// data. See Merge and Samples.
-//
-// For more detailed information about the algorithm used, see:
-//
-// Effective Computation of Biased Quantiles over Data Streams
-//
-// http://www.cs.rutgers.edu/~muthu/bquant.pdf
-package quantile
-
-import (
-	"math"
-	"sort"
-)
-
-// Sample holds an observed value and meta information for compression. JSON
-// tags have been added for convenience.
-type Sample struct {
-	Value float64 `json:",string"`
-	Width float64 `json:",string"`
-	Delta float64 `json:",string"`
-}
-
-// Samples represents a slice of samples. It implements sort.Interface.
-type Samples []Sample
-
-func (a Samples) Len() int           { return len(a) }
-func (a Samples) Less(i, j int) bool { return a[i].Value < a[j].Value }
-func (a Samples) Swap(i, j int)      { a[i], a[j] = a[j], a[i] }
-
-type invariant func(s *stream, r float64) float64
-
-// NewLowBiased returns an initialized Stream for low-biased quantiles
-// (e.g. 0.01, 0.1, 0.5) where the needed quantiles are not known a priori, but
-// error guarantees can still be given even for the lower ranks of the data
-// distribution.
-//
-// The provided epsilon is a relative error, i.e. the true quantile of a value
-// returned by a query is guaranteed to be within (1±Epsilon)*Quantile.
-//
-// See http://www.cs.rutgers.edu/~muthu/bquant.pdf for time, space, and error
-// properties.
-func NewLowBiased(epsilon float64) *Stream {
-	ƒ := func(s *stream, r float64) float64 {
-		return 2 * epsilon * r
-	}
-	return newStream(ƒ)
-}
-
-// NewHighBiased returns an initialized Stream for high-biased quantiles
-// (e.g. 0.01, 0.1, 0.5) where the needed quantiles are not known a priori, but
-// error guarantees can still be given even for the higher ranks of the data
-// distribution.
-//
-// The provided epsilon is a relative error, i.e. the true quantile of a value
-// returned by a query is guaranteed to be within 1-(1±Epsilon)*(1-Quantile).
-//
-// See http://www.cs.rutgers.edu/~muthu/bquant.pdf for time, space, and error
-// properties.
-func NewHighBiased(epsilon float64) *Stream {
-	ƒ := func(s *stream, r float64) float64 {
-		return 2 * epsilon * (s.n - r)
-	}
-	return newStream(ƒ)
-}
-
-// NewTargeted returns an initialized Stream concerned with a particular set of
-// quantile values that are supplied a priori. Knowing these a priori reduces
-// space and computation time. The targets map maps the desired quantiles to
-// their absolute errors, i.e. the true quantile of a value returned by a query
-// is guaranteed to be within (Quantile±Epsilon).
-//
-// See http://www.cs.rutgers.edu/~muthu/bquant.pdf for time, space, and error properties.
-func NewTargeted(targetMap map[float64]float64) *Stream {
-	// Convert map to slice to avoid slow iterations on a map.
-	// ƒ is called on the hot path, so converting the map to a slice
-	// beforehand results in significant CPU savings.
-	targets := targetMapToSlice(targetMap)
-
-	ƒ := func(s *stream, r float64) float64 {
-		var m = math.MaxFloat64
-		var f float64
-		for _, t := range targets {
-			if t.quantile*s.n <= r {
-				f = (2 * t.epsilon * r) / t.quantile
-			} else {
-				f = (2 * t.epsilon * (s.n - r)) / (1 - t.quantile)
-			}
-			if f < m {
-				m = f
-			}
-		}
-		return m
-	}
-	return newStream(ƒ)
-}
-
-type target struct {
-	quantile float64
-	epsilon  float64
-}
-
-func targetMapToSlice(targetMap map[float64]float64) []target {
-	targets := make([]target, 0, len(targetMap))
-
-	for quantile, epsilon := range targetMap {
-		t := target{
-			quantile: quantile,
-			epsilon:  epsilon,
-		}
-		targets = append(targets, t)
-	}
-
-	return targets
-}
-
-// Stream computes quantiles for a stream of float64s. It is not thread-safe by
-// design. Take care when using across multiple goroutines.
-type Stream struct {
-	*stream
-	b      Samples
-	sorted bool
-}
-
-func newStream(ƒ invariant) *Stream {
-	x := &stream{ƒ: ƒ}
-	return &Stream{x, make(Samples, 0, 500), true}
-}
-
-// Insert inserts v into the stream.
-func (s *Stream) Insert(v float64) {
-	s.insert(Sample{Value: v, Width: 1})
-}
-
-func (s *Stream) insert(sample Sample) {
-	s.b = append(s.b, sample)
-	s.sorted = false
-	if len(s.b) == cap(s.b) {
-		s.flush()
-	}
-}
-
-// Query returns the computed qth percentiles value. If s was created with
-// NewTargeted, and q is not in the set of quantiles provided a priori, Query
-// will return an unspecified result.
-func (s *Stream) Query(q float64) float64 {
-	if !s.flushed() {
-		// Fast path when there hasn't been enough data for a flush;
-		// this also yields better accuracy for small sets of data.
-		l := len(s.b)
-		if l == 0 {
-			return 0
-		}
-		i := int(math.Ceil(float64(l) * q))
-		if i > 0 {
-			i -= 1
-		}
-		s.maybeSort()
-		return s.b[i].Value
-	}
-	s.flush()
-	return s.stream.query(q)
-}
-
-// Merge merges samples into the underlying streams samples. This is handy when
-// merging multiple streams from separate threads, database shards, etc.
-//
-// ATTENTION: This method is broken and does not yield correct results. The
-// underlying algorithm is not capable of merging streams correctly.
-func (s *Stream) Merge(samples Samples) {
-	sort.Sort(samples)
-	s.stream.merge(samples)
-}
-
-// Reset reinitializes and clears the list reusing the samples buffer memory.
-func (s *Stream) Reset() {
-	s.stream.reset()
-	s.b = s.b[:0]
-}
-
-// Samples returns stream samples held by s.
-func (s *Stream) Samples() Samples {
-	if !s.flushed() {
-		return s.b
-	}
-	s.flush()
-	return s.stream.samples()
-}
-
-// Count returns the total number of samples observed in the stream
-// since initialization.
-func (s *Stream) Count() int {
-	return len(s.b) + s.stream.count()
-}
-
-func (s *Stream) flush() {
-	s.maybeSort()
-	s.stream.merge(s.b)
-	s.b = s.b[:0]
-}
-
-func (s *Stream) maybeSort() {
-	if !s.sorted {
-		s.sorted = true
-		sort.Sort(s.b)
-	}
-}
-
-func (s *Stream) flushed() bool {
-	return len(s.stream.l) > 0
-}
-
-type stream struct {
-	n float64
-	l []Sample
-	ƒ invariant
-}
-
-func (s *stream) reset() {
-	s.l = s.l[:0]
-	s.n = 0
-}
-
-func (s *stream) insert(v float64) {
-	s.merge(Samples{{v, 1, 0}})
-}
-
-func (s *stream) merge(samples Samples) {
-	// TODO(beorn7): This tries to merge not only individual samples, but
-	// whole summaries. The paper doesn't mention merging summaries at
-	// all. Unittests show that the merging is inaccurate. Find out how to
-	// do merges properly.
-	var r float64
-	i := 0
-	for _, sample := range samples {
-		for ; i < len(s.l); i++ {
-			c := s.l[i]
-			if c.Value > sample.Value {
-				// Insert at position i.
-				s.l = append(s.l, Sample{})
-				copy(s.l[i+1:], s.l[i:])
-				s.l[i] = Sample{
-					sample.Value,
-					sample.Width,
-					math.Max(sample.Delta, math.Floor(s.ƒ(s, r))-1),
-					// TODO(beorn7): How to calculate delta correctly?
-				}
-				i++
-				goto inserted
-			}
-			r += c.Width
-		}
-		s.l = append(s.l, Sample{sample.Value, sample.Width, 0})
-		i++
-	inserted:
-		s.n += sample.Width
-		r += sample.Width
-	}
-	s.compress()
-}
-
-func (s *stream) count() int {
-	return int(s.n)
-}
-
-func (s *stream) query(q float64) float64 {
-	t := math.Ceil(q * s.n)
-	t += math.Ceil(s.ƒ(s, t) / 2)
-	p := s.l[0]
-	var r float64
-	for _, c := range s.l[1:] {
-		r += p.Width
-		if r+c.Width+c.Delta > t {
-			return p.Value
-		}
-		p = c
-	}
-	return p.Value
-}
-
-func (s *stream) compress() {
-	if len(s.l) < 2 {
-		return
-	}
-	x := s.l[len(s.l)-1]
-	xi := len(s.l) - 1
-	r := s.n - 1 - x.Width
-
-	for i := len(s.l) - 2; i >= 0; i-- {
-		c := s.l[i]
-		if c.Width+x.Width+x.Delta <= s.ƒ(s, r) {
-			x.Width += c.Width
-			s.l[xi] = x
-			// Remove element at i.
-			copy(s.l[i:], s.l[i+1:])
-			s.l = s.l[:len(s.l)-1]
-			xi -= 1
-		} else {
-			x = c
-			xi = i
-		}
-		r -= c.Width
-	}
-}
-
-func (s *stream) samples() Samples {
-	samples := make(Samples, len(s.l))
-	copy(samples, s.l)
-	return samples
-}

vendor/github.com/cespare/xxhash/v2/LICENSE.txt

@@ -1,22 +0,0 @@
-Copyright (c) 2016 Caleb Spare
-
-MIT License
-
-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.

vendor/github.com/cespare/xxhash/v2/README.md

@@ -1,72 +0,0 @@
-# xxhash
-
-[![Go Reference](https://pkg.go.dev/badge/github.com/cespare/xxhash/v2.svg)](https://pkg.go.dev/github.com/cespare/xxhash/v2)
-[![Test](https://github.com/cespare/xxhash/actions/workflows/test.yml/badge.svg)](https://github.com/cespare/xxhash/actions/workflows/test.yml)
-
-xxhash is a Go implementation of the 64-bit [xxHash] algorithm, XXH64. This is a
-high-quality hashing algorithm that is much faster than anything in the Go
-standard library.
-
-This package provides a straightforward API:
-
-```
-func Sum64(b []byte) uint64
-func Sum64String(s string) uint64
-type Digest struct{ ... }
-    func New() *Digest
-```
-
-The `Digest` type implements hash.Hash64. Its key methods are:
-
-```
-func (*Digest) Write([]byte) (int, error)
-func (*Digest) WriteString(string) (int, error)
-func (*Digest) Sum64() uint64
-```
-
-The package is written with optimized pure Go and also contains even faster
-assembly implementations for amd64 and arm64. If desired, the `purego` build tag
-opts into using the Go code even on those architectures.
-
-[xxHash]: http://cyan4973.github.io/xxHash/
-
-## Compatibility
-
-This package is in a module and the latest code is in version 2 of the module.
-You need a version of Go with at least "minimal module compatibility" to use
-github.com/cespare/xxhash/v2:
-
-* 1.9.7+ for Go 1.9
-* 1.10.3+ for Go 1.10
-* Go 1.11 or later
-
-I recommend using the latest release of Go.
-
-## Benchmarks
-
-Here are some quick benchmarks comparing the pure-Go and assembly
-implementations of Sum64.
-
-| input size | purego    | asm       |
-| ---------- | --------- | --------- |
-| 4 B        |  1.3 GB/s |  1.2 GB/s |
-| 16 B       |  2.9 GB/s |  3.5 GB/s |
-| 100 B      |  6.9 GB/s |  8.1 GB/s |
-| 4 KB       | 11.7 GB/s | 16.7 GB/s |
-| 10 MB      | 12.0 GB/s | 17.3 GB/s |
-
-These numbers were generated on Ubuntu 20.04 with an Intel Xeon Platinum 8252C
-CPU using the following commands under Go 1.19.2:
-
-```
-benchstat <(go test -tags purego -benchtime 500ms -count 15 -bench 'Sum64$')
-benchstat <(go test -benchtime 500ms -count 15 -bench 'Sum64$')
-```
-
-## Projects using this package
-
-- [InfluxDB](https://github.com/influxdata/influxdb)
-- [Prometheus](https://github.com/prometheus/prometheus)
-- [VictoriaMetrics](https://github.com/VictoriaMetrics/VictoriaMetrics)
-- [FreeCache](https://github.com/coocood/freecache)
-- [FastCache](https://github.com/VictoriaMetrics/fastcache)

vendor/github.com/cespare/xxhash/v2/testall.sh

@@ -1,10 +0,0 @@
-#!/bin/bash
-set -eu -o pipefail
-
-# Small convenience script for running the tests with various combinations of
-# arch/tags. This assumes we're running on amd64 and have qemu available.
-
-go test ./...
-go test -tags purego ./...
-GOARCH=arm64 go test
-GOARCH=arm64 go test -tags purego

vendor/github.com/cespare/xxhash/v2/xxhash.go

@@ -1,228 +0,0 @@
-// Package xxhash implements the 64-bit variant of xxHash (XXH64) as described
-// at http://cyan4973.github.io/xxHash/.
-package xxhash
-
-import (
-	"encoding/binary"
-	"errors"
-	"math/bits"
-)
-
-const (
-	prime1 uint64 = 11400714785074694791
-	prime2 uint64 = 14029467366897019727
-	prime3 uint64 = 1609587929392839161
-	prime4 uint64 = 9650029242287828579
-	prime5 uint64 = 2870177450012600261
-)
-
-// Store the primes in an array as well.
-//
-// The consts are used when possible in Go code to avoid MOVs but we need a
-// contiguous array of the assembly code.
-var primes = [...]uint64{prime1, prime2, prime3, prime4, prime5}
-
-// Digest implements hash.Hash64.
-type Digest struct {
-	v1    uint64
-	v2    uint64
-	v3    uint64
-	v4    uint64
-	total uint64
-	mem   [32]byte
-	n     int // how much of mem is used
-}
-
-// New creates a new Digest that computes the 64-bit xxHash algorithm.
-func New() *Digest {
-	var d Digest
-	d.Reset()
-	return &d
-}
-
-// Reset clears the Digest's state so that it can be reused.
-func (d *Digest) Reset() {
-	d.v1 = primes[0] + prime2
-	d.v2 = prime2
-	d.v3 = 0
-	d.v4 = -primes[0]
-	d.total = 0
-	d.n = 0
-}
-
-// Size always returns 8 bytes.
-func (d *Digest) Size() int { return 8 }
-
-// BlockSize always returns 32 bytes.
-func (d *Digest) BlockSize() int { return 32 }
-
-// Write adds more data to d. It always returns len(b), nil.
-func (d *Digest) Write(b []byte) (n int, err error) {
-	n = len(b)
-	d.total += uint64(n)
-
-	memleft := d.mem[d.n&(len(d.mem)-1):]
-
-	if d.n+n < 32 {
-		// This new data doesn't even fill the current block.
-		copy(memleft, b)
-		d.n += n
-		return
-	}
-
-	if d.n > 0 {
-		// Finish off the partial block.
-		c := copy(memleft, b)
-		d.v1 = round(d.v1, u64(d.mem[0:8]))
-		d.v2 = round(d.v2, u64(d.mem[8:16]))
-		d.v3 = round(d.v3, u64(d.mem[16:24]))
-		d.v4 = round(d.v4, u64(d.mem[24:32]))
-		b = b[c:]
-		d.n = 0
-	}
-
-	if len(b) >= 32 {
-		// One or more full blocks left.
-		nw := writeBlocks(d, b)
-		b = b[nw:]
-	}
-
-	// Store any remaining partial block.
-	copy(d.mem[:], b)
-	d.n = len(b)
-
-	return
-}
-
-// Sum appends the current hash to b and returns the resulting slice.
-func (d *Digest) Sum(b []byte) []byte {
-	s := d.Sum64()
-	return append(
-		b,
-		byte(s>>56),
-		byte(s>>48),
-		byte(s>>40),
-		byte(s>>32),
-		byte(s>>24),
-		byte(s>>16),
-		byte(s>>8),
-		byte(s),
-	)
-}
-
-// Sum64 returns the current hash.
-func (d *Digest) Sum64() uint64 {
-	var h uint64
-
-	if d.total >= 32 {
-		v1, v2, v3, v4 := d.v1, d.v2, d.v3, d.v4
-		h = rol1(v1) + rol7(v2) + rol12(v3) + rol18(v4)
-		h = mergeRound(h, v1)
-		h = mergeRound(h, v2)
-		h = mergeRound(h, v3)
-		h = mergeRound(h, v4)
-	} else {
-		h = d.v3 + prime5
-	}
-
-	h += d.total
-
-	b := d.mem[:d.n&(len(d.mem)-1)]
-	for ; len(b) >= 8; b = b[8:] {
-		k1 := round(0, u64(b[:8]))
-		h ^= k1
-		h = rol27(h)*prime1 + prime4
-	}
-	if len(b) >= 4 {
-		h ^= uint64(u32(b[:4])) * prime1
-		h = rol23(h)*prime2 + prime3
-		b = b[4:]
-	}
-	for ; len(b) > 0; b = b[1:] {
-		h ^= uint64(b[0]) * prime5
-		h = rol11(h) * prime1
-	}
-
-	h ^= h >> 33
-	h *= prime2
-	h ^= h >> 29
-	h *= prime3
-	h ^= h >> 32
-
-	return h
-}
-
-const (
-	magic         = "xxh\x06"
-	marshaledSize = len(magic) + 8*5 + 32
-)
-
-// MarshalBinary implements the encoding.BinaryMarshaler interface.
-func (d *Digest) MarshalBinary() ([]byte, error) {
-	b := make([]byte, 0, marshaledSize)
-	b = append(b, magic...)
-	b = appendUint64(b, d.v1)
-	b = appendUint64(b, d.v2)
-	b = appendUint64(b, d.v3)
-	b = appendUint64(b, d.v4)
-	b = appendUint64(b, d.total)
-	b = append(b, d.mem[:d.n]...)
-	b = b[:len(b)+len(d.mem)-d.n]
-	return b, nil
-}
-
-// UnmarshalBinary implements the encoding.BinaryUnmarshaler interface.
-func (d *Digest) UnmarshalBinary(b []byte) error {
-	if len(b) < len(magic) || string(b[:len(magic)]) != magic {
-		return errors.New("xxhash: invalid hash state identifier")
-	}
-	if len(b) != marshaledSize {
-		return errors.New("xxhash: invalid hash state size")
-	}
-	b = b[len(magic):]
-	b, d.v1 = consumeUint64(b)
-	b, d.v2 = consumeUint64(b)
-	b, d.v3 = consumeUint64(b)
-	b, d.v4 = consumeUint64(b)
-	b, d.total = consumeUint64(b)
-	copy(d.mem[:], b)
-	d.n = int(d.total % uint64(len(d.mem)))
-	return nil
-}
-
-func appendUint64(b []byte, x uint64) []byte {
-	var a [8]byte
-	binary.LittleEndian.PutUint64(a[:], x)
-	return append(b, a[:]...)
-}
-
-func consumeUint64(b []byte) ([]byte, uint64) {
-	x := u64(b)
-	return b[8:], x
-}
-
-func u64(b []byte) uint64 { return binary.LittleEndian.Uint64(b) }
-func u32(b []byte) uint32 { return binary.LittleEndian.Uint32(b) }
-
-func round(acc, input uint64) uint64 {
-	acc += input * prime2
-	acc = rol31(acc)
-	acc *= prime1
-	return acc
-}
-
-func mergeRound(acc, val uint64) uint64 {
-	val = round(0, val)
-	acc ^= val
-	acc = acc*prime1 + prime4
-	return acc
-}
-
-func rol1(x uint64) uint64  { return bits.RotateLeft64(x, 1) }
-func rol7(x uint64) uint64  { return bits.RotateLeft64(x, 7) }
-func rol11(x uint64) uint64 { return bits.RotateLeft64(x, 11) }
-func rol12(x uint64) uint64 { return bits.RotateLeft64(x, 12) }
-func rol18(x uint64) uint64 { return bits.RotateLeft64(x, 18) }
-func rol23(x uint64) uint64 { return bits.RotateLeft64(x, 23) }
-func rol27(x uint64) uint64 { return bits.RotateLeft64(x, 27) }
-func rol31(x uint64) uint64 { return bits.RotateLeft64(x, 31) }

vendor/github.com/cespare/xxhash/v2/xxhash_amd64.s

@@ -1,209 +0,0 @@
-//go:build !appengine && gc && !purego
-// +build !appengine
-// +build gc
-// +build !purego
-
-#include "textflag.h"
-
-// Registers:
-#define h      AX
-#define d      AX
-#define p      SI // pointer to advance through b
-#define n      DX
-#define end    BX // loop end
-#define v1     R8
-#define v2     R9
-#define v3     R10
-#define v4     R11
-#define x      R12
-#define prime1 R13
-#define prime2 R14
-#define prime4 DI
-
-#define round(acc, x) \
-	IMULQ prime2, x   \
-	ADDQ  x, acc      \
-	ROLQ  $31, acc    \
-	IMULQ prime1, acc
-
-// round0 performs the operation x = round(0, x).
-#define round0(x) \
-	IMULQ prime2, x \
-	ROLQ  $31, x    \
-	IMULQ prime1, x
-
-// mergeRound applies a merge round on the two registers acc and x.
-// It assumes that prime1, prime2, and prime4 have been loaded.
-#define mergeRound(acc, x) \
-	round0(x)         \
-	XORQ  x, acc      \
-	IMULQ prime1, acc \
-	ADDQ  prime4, acc
-
-// blockLoop processes as many 32-byte blocks as possible,
-// updating v1, v2, v3, and v4. It assumes that there is at least one block
-// to process.
-#define blockLoop() \
-loop:  \
-	MOVQ +0(p), x  \
-	round(v1, x)   \
-	MOVQ +8(p), x  \
-	round(v2, x)   \
-	MOVQ +16(p), x \
-	round(v3, x)   \
-	MOVQ +24(p), x \
-	round(v4, x)   \
-	ADDQ $32, p    \
-	CMPQ p, end    \
-	JLE  loop
-
-// func Sum64(b []byte) uint64
-TEXT ·Sum64(SB), NOSPLIT|NOFRAME, $0-32
-	// Load fixed primes.
-	MOVQ ·primes+0(SB), prime1
-	MOVQ ·primes+8(SB), prime2
-	MOVQ ·primes+24(SB), prime4
-
-	// Load slice.
-	MOVQ b_base+0(FP), p
-	MOVQ b_len+8(FP), n
-	LEAQ (p)(n*1), end
-
-	// The first loop limit will be len(b)-32.
-	SUBQ $32, end
-
-	// Check whether we have at least one block.
-	CMPQ n, $32
-	JLT  noBlocks
-
-	// Set up initial state (v1, v2, v3, v4).
-	MOVQ prime1, v1
-	ADDQ prime2, v1
-	MOVQ prime2, v2
-	XORQ v3, v3
-	XORQ v4, v4
-	SUBQ prime1, v4
-
-	blockLoop()
-
-	MOVQ v1, h
-	ROLQ $1, h
-	MOVQ v2, x
-	ROLQ $7, x
-	ADDQ x, h
-	MOVQ v3, x
-	ROLQ $12, x
-	ADDQ x, h
-	MOVQ v4, x
-	ROLQ $18, x
-	ADDQ x, h
-
-	mergeRound(h, v1)
-	mergeRound(h, v2)
-	mergeRound(h, v3)
-	mergeRound(h, v4)
-
-	JMP afterBlocks
-
-noBlocks:
-	MOVQ ·primes+32(SB), h
-
-afterBlocks:
-	ADDQ n, h
-
-	ADDQ $24, end
-	CMPQ p, end
-	JG   try4
-
-loop8:
-	MOVQ  (p), x
-	ADDQ  $8, p
-	round0(x)
-	XORQ  x, h
-	ROLQ  $27, h
-	IMULQ prime1, h
-	ADDQ  prime4, h
-
-	CMPQ p, end
-	JLE  loop8
-
-try4:
-	ADDQ $4, end
-	CMPQ p, end
-	JG   try1
-
-	MOVL  (p), x
-	ADDQ  $4, p
-	IMULQ prime1, x
-	XORQ  x, h
-
-	ROLQ  $23, h
-	IMULQ prime2, h
-	ADDQ  ·primes+16(SB), h
-
-try1:
-	ADDQ $4, end
-	CMPQ p, end
-	JGE  finalize
-
-loop1:
-	MOVBQZX (p), x
-	ADDQ    $1, p
-	IMULQ   ·primes+32(SB), x
-	XORQ    x, h
-	ROLQ    $11, h
-	IMULQ   prime1, h
-
-	CMPQ p, end
-	JL   loop1
-
-finalize:
-	MOVQ  h, x
-	SHRQ  $33, x
-	XORQ  x, h
-	IMULQ prime2, h
-	MOVQ  h, x
-	SHRQ  $29, x
-	XORQ  x, h
-	IMULQ ·primes+16(SB), h
-	MOVQ  h, x
-	SHRQ  $32, x
-	XORQ  x, h
-
-	MOVQ h, ret+24(FP)
-	RET
-
-// func writeBlocks(d *Digest, b []byte) int
-TEXT ·writeBlocks(SB), NOSPLIT|NOFRAME, $0-40
-	// Load fixed primes needed for round.
-	MOVQ ·primes+0(SB), prime1
-	MOVQ ·primes+8(SB), prime2
-
-	// Load slice.
-	MOVQ b_base+8(FP), p
-	MOVQ b_len+16(FP), n
-	LEAQ (p)(n*1), end
-	SUBQ $32, end
-
-	// Load vN from d.
-	MOVQ s+0(FP), d
-	MOVQ 0(d), v1
-	MOVQ 8(d), v2
-	MOVQ 16(d), v3
-	MOVQ 24(d), v4
-
-	// We don't need to check the loop condition here; this function is
-	// always called with at least one block of data to process.
-	blockLoop()
-
-	// Copy vN back to d.
-	MOVQ v1, 0(d)
-	MOVQ v2, 8(d)
-	MOVQ v3, 16(d)
-	MOVQ v4, 24(d)
-
-	// The number of bytes written is p minus the old base pointer.
-	SUBQ b_base+8(FP), p
-	MOVQ p, ret+32(FP)
-
-	RET

vendor/github.com/cespare/xxhash/v2/xxhash_arm64.s

@@ -1,183 +0,0 @@
-//go:build !appengine && gc && !purego
-// +build !appengine
-// +build gc
-// +build !purego
-
-#include "textflag.h"
-
-// Registers:
-#define digest	R1
-#define h	R2 // return value
-#define p	R3 // input pointer
-#define n	R4 // input length
-#define nblocks	R5 // n / 32
-#define prime1	R7
-#define prime2	R8
-#define prime3	R9
-#define prime4	R10
-#define prime5	R11
-#define v1	R12
-#define v2	R13
-#define v3	R14
-#define v4	R15
-#define x1	R20
-#define x2	R21
-#define x3	R22
-#define x4	R23
-
-#define round(acc, x) \
-	MADD prime2, acc, x, acc \
-	ROR  $64-31, acc         \
-	MUL  prime1, acc
-
-// round0 performs the operation x = round(0, x).
-#define round0(x) \
-	MUL prime2, x \
-	ROR $64-31, x \
-	MUL prime1, x
-
-#define mergeRound(acc, x) \
-	round0(x)                     \
-	EOR  x, acc                   \
-	MADD acc, prime4, prime1, acc
-
-// blockLoop processes as many 32-byte blocks as possible,
-// updating v1, v2, v3, and v4. It assumes that n >= 32.
-#define blockLoop() \
-	LSR     $5, n, nblocks  \
-	PCALIGN $16             \
-	loop:                   \
-	LDP.P   16(p), (x1, x2) \
-	LDP.P   16(p), (x3, x4) \
-	round(v1, x1)           \
-	round(v2, x2)           \
-	round(v3, x3)           \
-	round(v4, x4)           \
-	SUB     $1, nblocks     \
-	CBNZ    nblocks, loop
-
-// func Sum64(b []byte) uint64
-TEXT ·Sum64(SB), NOSPLIT|NOFRAME, $0-32
-	LDP b_base+0(FP), (p, n)
-
-	LDP  ·primes+0(SB), (prime1, prime2)
-	LDP  ·primes+16(SB), (prime3, prime4)
-	MOVD ·primes+32(SB), prime5
-
-	CMP  $32, n
-	CSEL LT, prime5, ZR, h // if n < 32 { h = prime5 } else { h = 0 }
-	BLT  afterLoop
-
-	ADD  prime1, prime2, v1
-	MOVD prime2, v2
-	MOVD $0, v3
-	NEG  prime1, v4
-
-	blockLoop()
-
-	ROR $64-1, v1, x1
-	ROR $64-7, v2, x2
-	ADD x1, x2
-	ROR $64-12, v3, x3
-	ROR $64-18, v4, x4
-	ADD x3, x4
-	ADD x2, x4, h
-
-	mergeRound(h, v1)
-	mergeRound(h, v2)
-	mergeRound(h, v3)
-	mergeRound(h, v4)
-
-afterLoop:
-	ADD n, h
-
-	TBZ   $4, n, try8
-	LDP.P 16(p), (x1, x2)
-
-	round0(x1)
-
-	// NOTE: here and below, sequencing the EOR after the ROR (using a
-	// rotated register) is worth a small but measurable speedup for small
-	// inputs.
-	ROR  $64-27, h
-	EOR  x1 @> 64-27, h, h
-	MADD h, prime4, prime1, h
-
-	round0(x2)
-	ROR  $64-27, h
-	EOR  x2 @> 64-27, h, h
-	MADD h, prime4, prime1, h
-
-try8:
-	TBZ    $3, n, try4
-	MOVD.P 8(p), x1
-
-	round0(x1)
-	ROR  $64-27, h
-	EOR  x1 @> 64-27, h, h
-	MADD h, prime4, prime1, h
-
-try4:
-	TBZ     $2, n, try2
-	MOVWU.P 4(p), x2
-
-	MUL  prime1, x2
-	ROR  $64-23, h
-	EOR  x2 @> 64-23, h, h
-	MADD h, prime3, prime2, h
-
-try2:
-	TBZ     $1, n, try1
-	MOVHU.P 2(p), x3
-	AND     $255, x3, x1
-	LSR     $8, x3, x2
-
-	MUL prime5, x1
-	ROR $64-11, h
-	EOR x1 @> 64-11, h, h
-	MUL prime1, h
-
-	MUL prime5, x2
-	ROR $64-11, h
-	EOR x2 @> 64-11, h, h
-	MUL prime1, h
-
-try1:
-	TBZ   $0, n, finalize
-	MOVBU (p), x4
-
-	MUL prime5, x4
-	ROR $64-11, h
-	EOR x4 @> 64-11, h, h
-	MUL prime1, h
-
-finalize:
-	EOR h >> 33, h
-	MUL prime2, h
-	EOR h >> 29, h
-	MUL prime3, h
-	EOR h >> 32, h
-
-	MOVD h, ret+24(FP)
-	RET
-
-// func writeBlocks(d *Digest, b []byte) int
-TEXT ·writeBlocks(SB), NOSPLIT|NOFRAME, $0-40
-	LDP ·primes+0(SB), (prime1, prime2)
-
-	// Load state. Assume v[1-4] are stored contiguously.
-	MOVD d+0(FP), digest
-	LDP  0(digest), (v1, v2)
-	LDP  16(digest), (v3, v4)
-
-	LDP b_base+8(FP), (p, n)
-
-	blockLoop()
-
-	// Store updated state.
-	STP (v1, v2), 0(digest)
-	STP (v3, v4), 16(digest)
-
-	BIC  $31, n
-	MOVD n, ret+32(FP)
-	RET

vendor/github.com/cespare/xxhash/v2/xxhash_asm.go

@@ -1,15 +0,0 @@
-//go:build (amd64 || arm64) && !appengine && gc && !purego
-// +build amd64 arm64
-// +build !appengine
-// +build gc
-// +build !purego
-
-package xxhash
-
-// Sum64 computes the 64-bit xxHash digest of b.
-//
-//go:noescape
-func Sum64(b []byte) uint64
-
-//go:noescape
-func writeBlocks(d *Digest, b []byte) int

vendor/github.com/cespare/xxhash/v2/xxhash_other.go

@@ -1,76 +0,0 @@
-//go:build (!amd64 && !arm64) || appengine || !gc || purego
-// +build !amd64,!arm64 appengine !gc purego
-
-package xxhash
-
-// Sum64 computes the 64-bit xxHash digest of b.
-func Sum64(b []byte) uint64 {
-	// A simpler version would be
-	//   d := New()
-	//   d.Write(b)
-	//   return d.Sum64()
-	// but this is faster, particularly for small inputs.
-
-	n := len(b)
-	var h uint64
-
-	if n >= 32 {
-		v1 := primes[0] + prime2
-		v2 := prime2
-		v3 := uint64(0)
-		v4 := -primes[0]
-		for len(b) >= 32 {
-			v1 = round(v1, u64(b[0:8:len(b)]))
-			v2 = round(v2, u64(b[8:16:len(b)]))
-			v3 = round(v3, u64(b[16:24:len(b)]))
-			v4 = round(v4, u64(b[24:32:len(b)]))
-			b = b[32:len(b):len(b)]
-		}
-		h = rol1(v1) + rol7(v2) + rol12(v3) + rol18(v4)
-		h = mergeRound(h, v1)
-		h = mergeRound(h, v2)
-		h = mergeRound(h, v3)
-		h = mergeRound(h, v4)
-	} else {
-		h = prime5
-	}
-
-	h += uint64(n)
-
-	for ; len(b) >= 8; b = b[8:] {
-		k1 := round(0, u64(b[:8]))
-		h ^= k1
-		h = rol27(h)*prime1 + prime4
-	}
-	if len(b) >= 4 {
-		h ^= uint64(u32(b[:4])) * prime1
-		h = rol23(h)*prime2 + prime3
-		b = b[4:]
-	}
-	for ; len(b) > 0; b = b[1:] {
-		h ^= uint64(b[0]) * prime5
-		h = rol11(h) * prime1
-	}
-
-	h ^= h >> 33
-	h *= prime2
-	h ^= h >> 29
-	h *= prime3
-	h ^= h >> 32
-
-	return h
-}
-
-func writeBlocks(d *Digest, b []byte) int {
-	v1, v2, v3, v4 := d.v1, d.v2, d.v3, d.v4
-	n := len(b)
-	for len(b) >= 32 {
-		v1 = round(v1, u64(b[0:8:len(b)]))
-		v2 = round(v2, u64(b[8:16:len(b)]))
-		v3 = round(v3, u64(b[16:24:len(b)]))
-		v4 = round(v4, u64(b[24:32:len(b)]))
-		b = b[32:len(b):len(b)]
-	}
-	d.v1, d.v2, d.v3, d.v4 = v1, v2, v3, v4
-	return n - len(b)
-}

vendor/github.com/cespare/xxhash/v2/xxhash_safe.go

@@ -1,16 +0,0 @@
-//go:build appengine
-// +build appengine
-
-// This file contains the safe implementations of otherwise unsafe-using code.
-
-package xxhash
-
-// Sum64String computes the 64-bit xxHash digest of s.
-func Sum64String(s string) uint64 {
-	return Sum64([]byte(s))
-}
-
-// WriteString adds more data to d. It always returns len(s), nil.
-func (d *Digest) WriteString(s string) (n int, err error) {
-	return d.Write([]byte(s))
-}

vendor/github.com/cespare/xxhash/v2/xxhash_unsafe.go

@@ -1,58 +0,0 @@
-//go:build !appengine
-// +build !appengine
-
-// This file encapsulates usage of unsafe.
-// xxhash_safe.go contains the safe implementations.
-
-package xxhash
-
-import (
-	"unsafe"
-)
-
-// In the future it's possible that compiler optimizations will make these
-// XxxString functions unnecessary by realizing that calls such as
-// Sum64([]byte(s)) don't need to copy s. See https://go.dev/issue/2205.
-// If that happens, even if we keep these functions they can be replaced with
-// the trivial safe code.
-
-// NOTE: The usual way of doing an unsafe string-to-[]byte conversion is:
-//
-//   var b []byte
-//   bh := (*reflect.SliceHeader)(unsafe.Pointer(&b))
-//   bh.Data = (*reflect.StringHeader)(unsafe.Pointer(&s)).Data
-//   bh.Len = len(s)
-//   bh.Cap = len(s)
-//
-// Unfortunately, as of Go 1.15.3 the inliner's cost model assigns a high enough
-// weight to this sequence of expressions that any function that uses it will
-// not be inlined. Instead, the functions below use a different unsafe
-// conversion designed to minimize the inliner weight and allow both to be
-// inlined. There is also a test (TestInlining) which verifies that these are
-// inlined.
-//
-// See https://github.com/golang/go/issues/42739 for discussion.
-
-// Sum64String computes the 64-bit xxHash digest of s.
-// It may be faster than Sum64([]byte(s)) by avoiding a copy.
-func Sum64String(s string) uint64 {
-	b := *(*[]byte)(unsafe.Pointer(&sliceHeader{s, len(s)}))
-	return Sum64(b)
-}
-
-// WriteString adds more data to d. It always returns len(s), nil.
-// It may be faster than Write([]byte(s)) by avoiding a copy.
-func (d *Digest) WriteString(s string) (n int, err error) {
-	d.Write(*(*[]byte)(unsafe.Pointer(&sliceHeader{s, len(s)})))
-	// d.Write always returns len(s), nil.
-	// Ignoring the return output and returning these fixed values buys a
-	// savings of 6 in the inliner's cost model.
-	return len(s), nil
-}
-
-// sliceHeader is similar to reflect.SliceHeader, but it assumes that the layout
-// of the first two words is the same as the layout of a string.
-type sliceHeader struct {
-	s   string
-	cap int
-}

vendor/github.com/containerd/stargz-snapshotter/estargz/build.go

@@ -49,6 +49,7 @@ type options struct {
 	missedPrioritizedFiles *[]string
 	compression            Compression
 	ctx                    context.Context
+	minChunkSize           int
 }
 
 type Option func(o *options) error
@@ -63,6 +64,7 @@ func WithChunkSize(chunkSize int) Option {
 
 // WithCompressionLevel option specifies the gzip compression level.
 // The default is gzip.BestCompression.
+// This option will be ignored if WithCompression option is used.
 // See also: https://godoc.org/compress/gzip#pkg-constants
 func WithCompressionLevel(level int) Option {
 	return func(o *options) error {
@@ -113,6 +115,18 @@ func WithContext(ctx context.Context) Option {
 	}
 }
 
+// WithMinChunkSize option specifies the minimal number of bytes of data
+// must be written in one gzip stream.
+// By increasing this number, one gzip stream can contain multiple files
+// and it hopefully leads to smaller result blob.
+// NOTE: This adds a TOC property that old reader doesn't understand.
+func WithMinChunkSize(minChunkSize int) Option {
+	return func(o *options) error {
+		o.minChunkSize = minChunkSize
+		return nil
+	}
+}
+
 // Blob is an eStargz blob.
 type Blob struct {
 	io.ReadCloser
@@ -180,7 +194,14 @@ func Build(tarBlob *io.SectionReader, opt ...Option) (_ *Blob, rErr error) {
 	if err != nil {
 		return nil, err
 	}
-	tarParts := divideEntries(entries, runtime.GOMAXPROCS(0))
+	var tarParts [][]*entry
+	if opts.minChunkSize > 0 {
+		// Each entry needs to know the size of the current gzip stream so they
+		// cannot be processed in parallel.
+		tarParts = [][]*entry{entries}
+	} else {
+		tarParts = divideEntries(entries, runtime.GOMAXPROCS(0))
+	}
 	writers := make([]*Writer, len(tarParts))
 	payloads := make([]*os.File, len(tarParts))
 	var mu sync.Mutex
@@ -195,6 +216,13 @@ func Build(tarBlob *io.SectionReader, opt ...Option) (_ *Blob, rErr error) {
 			}
 			sw := NewWriterWithCompressor(esgzFile, opts.compression)
 			sw.ChunkSize = opts.chunkSize
+			sw.MinChunkSize = opts.minChunkSize
+			if sw.needsOpenGzEntries == nil {
+				sw.needsOpenGzEntries = make(map[string]struct{})
+			}
+			for _, f := range []string{PrefetchLandmark, NoPrefetchLandmark} {
+				sw.needsOpenGzEntries[f] = struct{}{}
+			}
 			if err := sw.AppendTar(readerFromEntries(parts...)); err != nil {
 				return err
 			}
@@ -209,7 +237,7 @@ func Build(tarBlob *io.SectionReader, opt ...Option) (_ *Blob, rErr error) {
 		rErr = err
 		return nil, err
 	}
-	tocAndFooter, tocDgst, err := closeWithCombine(opts.compressionLevel, writers...)
+	tocAndFooter, tocDgst, err := closeWithCombine(writers...)
 	if err != nil {
 		rErr = err
 		return nil, err
@@ -252,7 +280,7 @@ func Build(tarBlob *io.SectionReader, opt ...Option) (_ *Blob, rErr error) {
 // Writers doesn't write TOC and footer to the underlying writers so they can be
 // combined into a single eStargz and tocAndFooter returned by this function can
 // be appended at the tail of that combined blob.
-func closeWithCombine(compressionLevel int, ws ...*Writer) (tocAndFooterR io.Reader, tocDgst digest.Digest, err error) {
+func closeWithCombine(ws ...*Writer) (tocAndFooterR io.Reader, tocDgst digest.Digest, err error) {
 	if len(ws) == 0 {
 		return nil, "", fmt.Errorf("at least one writer must be passed")
 	}
@@ -395,7 +423,7 @@ func readerFromEntries(entries ...*entry) io.Reader {
 
 func importTar(in io.ReaderAt) (*tarFile, error) {
 	tf := &tarFile{}
-	pw, err := newCountReader(in)
+	pw, err := newCountReadSeeker(in)
 	if err != nil {
 		return nil, fmt.Errorf("failed to make position watcher: %w", err)
 	}
@@ -571,19 +599,19 @@ func (tf *tempFiles) cleanupAll() error {
 	return errorutil.Aggregate(allErr)
 }
 
-func newCountReader(r io.ReaderAt) (*countReader, error) {
+func newCountReadSeeker(r io.ReaderAt) (*countReadSeeker, error) {
 	pos := int64(0)
-	return &countReader{r: r, cPos: &pos}, nil
+	return &countReadSeeker{r: r, cPos: &pos}, nil
 }
 
-type countReader struct {
+type countReadSeeker struct {
 	r    io.ReaderAt
 	cPos *int64
 
 	mu sync.Mutex
 }
 
-func (cr *countReader) Read(p []byte) (int, error) {
+func (cr *countReadSeeker) Read(p []byte) (int, error) {
 	cr.mu.Lock()
 	defer cr.mu.Unlock()
 
@@ -594,7 +622,7 @@ func (cr *countReader) Read(p []byte) (int, error) {
 	return n, err
 }
 
-func (cr *countReader) Seek(offset int64, whence int) (int64, error) {
+func (cr *countReadSeeker) Seek(offset int64, whence int) (int64, error) {
 	cr.mu.Lock()
 	defer cr.mu.Unlock()
 
@@ -615,7 +643,7 @@ func (cr *countReader) Seek(offset int64, whence int) (int64, error) {
 	return offset, nil
 }
 
-func (cr *countReader) currentPos() int64 {
+func (cr *countReadSeeker) currentPos() int64 {
 	cr.mu.Lock()
 	defer cr.mu.Unlock()
 

vendor/github.com/containerd/stargz-snapshotter/estargz/estargz.go

@@ -150,10 +150,10 @@ func Open(sr *io.SectionReader, opt ...OpenOption) (*Reader, error) {
 			allErr = append(allErr, err)
 			continue
 		}
-		if tocSize <= 0 {
+		if tocOffset >= 0 && tocSize <= 0 {
 			tocSize = sr.Size() - tocOffset - fSize
 		}
-		if tocSize < int64(len(maybeTocBytes)) {
+		if tocOffset >= 0 && tocSize < int64(len(maybeTocBytes)) {
 			maybeTocBytes = maybeTocBytes[:tocSize]
 		}
 		r, err = parseTOC(d, sr, tocOffset, tocSize, maybeTocBytes, opts)
@@ -207,8 +207,16 @@ func (r *Reader) initFields() error {
 	uname := map[int]string{}
 	gname := map[int]string{}
 	var lastRegEnt *TOCEntry
-	for _, ent := range r.toc.Entries {
+	var chunkTopIndex int
+	for i, ent := range r.toc.Entries {
 		ent.Name = cleanEntryName(ent.Name)
+		switch ent.Type {
+		case "reg", "chunk":
+			if ent.Offset != r.toc.Entries[chunkTopIndex].Offset {
+				chunkTopIndex = i
+			}
+			ent.chunkTopIndex = chunkTopIndex
+		}
 		if ent.Type == "reg" {
 			lastRegEnt = ent
 		}
@@ -294,7 +302,7 @@ func (r *Reader) initFields() error {
 		if e.isDataType() {
 			e.nextOffset = lastOffset
 		}
-		if e.Offset != 0 {
+		if e.Offset != 0 && e.InnerOffset == 0 {
 			lastOffset = e.Offset
 		}
 	}
@@ -488,6 +496,14 @@ func (r *Reader) Lookup(path string) (e *TOCEntry, ok bool) {
 //
 // Name must be absolute path or one that is relative to root.
 func (r *Reader) OpenFile(name string) (*io.SectionReader, error) {
+	fr, err := r.newFileReader(name)
+	if err != nil {
+		return nil, err
+	}
+	return io.NewSectionReader(fr, 0, fr.size), nil
+}
+
+func (r *Reader) newFileReader(name string) (*fileReader, error) {
 	name = cleanEntryName(name)
 	ent, ok := r.Lookup(name)
 	if !ok {
@@ -505,11 +521,19 @@ func (r *Reader) OpenFile(name string) (*io.SectionReader, error) {
 			Err:  errors.New("not a regular file"),
 		}
 	}
-	fr := &fileReader{
+	return &fileReader{
 		r:    r,
 		size: ent.Size,
 		ents: r.getChunks(ent),
+	}, nil
+}
+
+func (r *Reader) OpenFileWithPreReader(name string, preRead func(*TOCEntry, io.Reader) error) (*io.SectionReader, error) {
+	fr, err := r.newFileReader(name)
+	if err != nil {
+		return nil, err
 	}
+	fr.preRead = preRead
 	return io.NewSectionReader(fr, 0, fr.size), nil
 }
 
@@ -521,9 +545,10 @@ func (r *Reader) getChunks(ent *TOCEntry) []*TOCEntry {
 }
 
 type fileReader struct {
-	r    *Reader
-	size int64
-	ents []*TOCEntry // 1 or more reg/chunk entries
+	r       *Reader
+	size    int64
+	ents    []*TOCEntry // 1 or more reg/chunk entries
+	preRead func(*TOCEntry, io.Reader) error
 }
 
 func (fr *fileReader) ReadAt(p []byte, off int64) (n int, err error) {
@@ -578,10 +603,48 @@ func (fr *fileReader) ReadAt(p []byte, off int64) (n int, err error) {
 		return 0, fmt.Errorf("fileReader.ReadAt.decompressor.Reader: %v", err)
 	}
 	defer dr.Close()
-	if n, err := io.CopyN(io.Discard, dr, off); n != off || err != nil {
-		return 0, fmt.Errorf("discard of %d bytes = %v, %v", off, n, err)
+
+	if fr.preRead == nil {
+		if n, err := io.CopyN(io.Discard, dr, ent.InnerOffset+off); n != ent.InnerOffset+off || err != nil {
+			return 0, fmt.Errorf("discard of %d bytes != %v, %v", ent.InnerOffset+off, n, err)
+		}
+		return io.ReadFull(dr, p)
 	}
-	return io.ReadFull(dr, p)
+
+	var retN int
+	var retErr error
+	var found bool
+	var nr int64
+	for _, e := range fr.r.toc.Entries[ent.chunkTopIndex:] {
+		if !e.isDataType() {
+			continue
+		}
+		if e.Offset != fr.r.toc.Entries[ent.chunkTopIndex].Offset {
+			break
+		}
+		if in, err := io.CopyN(io.Discard, dr, e.InnerOffset-nr); err != nil || in != e.InnerOffset-nr {
+			return 0, fmt.Errorf("discard of remaining %d bytes != %v, %v", e.InnerOffset-nr, in, err)
+		}
+		nr = e.InnerOffset
+		if e == ent {
+			found = true
+			if n, err := io.CopyN(io.Discard, dr, off); n != off || err != nil {
+				return 0, fmt.Errorf("discard of offset %d bytes != %v, %v", off, n, err)
+			}
+			retN, retErr = io.ReadFull(dr, p)
+			nr += off + int64(retN)
+			continue
+		}
+		cr := &countReader{r: io.LimitReader(dr, e.ChunkSize)}
+		if err := fr.preRead(e, cr); err != nil {
+			return 0, fmt.Errorf("failed to pre read: %w", err)
+		}
+		nr += cr.n
+	}
+	if !found {
+		return 0, fmt.Errorf("fileReader.ReadAt: target entry not found")
+	}
+	return retN, retErr
 }
 
 // A Writer writes stargz files.
@@ -599,11 +662,20 @@ type Writer struct {
 	lastGroupname map[int]string
 	compressor    Compressor
 
+	uncompressedCounter *countWriteFlusher
+
 	// ChunkSize optionally controls the maximum number of bytes
 	// of data of a regular file that can be written in one gzip
 	// stream before a new gzip stream is started.
 	// Zero means to use a default, currently 4 MiB.
 	ChunkSize int
+
+	// MinChunkSize optionally controls the minimum number of bytes
+	// of data must be written in one gzip stream before a new gzip
+	// NOTE: This adds a TOC property that stargz snapshotter < v0.13.0 doesn't understand.
+	MinChunkSize int
+
+	needsOpenGzEntries map[string]struct{}
 }
 
 // currentCompressionWriter writes to the current w.gz field, which can
@@ -646,6 +718,9 @@ func Unpack(sr *io.SectionReader, c Decompressor) (io.ReadCloser, error) {
 	if err != nil {
 		return nil, fmt.Errorf("failed to parse footer: %w", err)
 	}
+	if blobPayloadSize < 0 {
+		blobPayloadSize = sr.Size()
+	}
 	return c.Reader(io.LimitReader(sr, blobPayloadSize))
 }
 
@@ -672,11 +747,12 @@ func NewWriterWithCompressor(w io.Writer, c Compressor) *Writer {
 	bw := bufio.NewWriter(w)
 	cw := &countWriter{w: bw}
 	return &Writer{
-		bw:         bw,
-		cw:         cw,
-		toc:        &JTOC{Version: 1},
-		diffHash:   sha256.New(),
-		compressor: c,
+		bw:                  bw,
+		cw:                  cw,
+		toc:                 &JTOC{Version: 1},
+		diffHash:            sha256.New(),
+		compressor:          c,
+		uncompressedCounter: &countWriteFlusher{},
 	}
 }
 
@@ -717,6 +793,20 @@ func (w *Writer) closeGz() error {
 	return nil
 }
 
+func (w *Writer) flushGz() error {
+	if w.closed {
+		return errors.New("flush on closed Writer")
+	}
+	if w.gz != nil {
+		if f, ok := w.gz.(interface {
+			Flush() error
+		}); ok {
+			return f.Flush()
+		}
+	}
+	return nil
+}
+
 // nameIfChanged returns name, unless it was the already the value of (*mp)[id],
 // in which case it returns the empty string.
 func (w *Writer) nameIfChanged(mp *map[int]string, id int, name string) string {
@@ -736,6 +826,9 @@ func (w *Writer) nameIfChanged(mp *map[int]string, id int, name string) string {
 func (w *Writer) condOpenGz() (err error) {
 	if w.gz == nil {
 		w.gz, err = w.compressor.Writer(w.cw)
+		if w.gz != nil {
+			w.gz = w.uncompressedCounter.register(w.gz)
+		}
 	}
 	return
 }
@@ -784,6 +877,8 @@ func (w *Writer) appendTar(r io.Reader, lossless bool) error {
 	if lossless {
 		tr.RawAccounting = true
 	}
+	prevOffset := w.cw.n
+	var prevOffsetUncompressed int64
 	for {
 		h, err := tr.Next()
 		if err == io.EOF {
@@ -883,10 +978,6 @@ func (w *Writer) appendTar(r io.Reader, lossless bool) error {
 			totalSize := ent.Size // save it before we destroy ent
 			tee := io.TeeReader(tr, payloadDigest.Hash())
 			for written < totalSize {
-				if err := w.closeGz(); err != nil {
-					return err
-				}
-
 				chunkSize := int64(w.chunkSize())
 				remain := totalSize - written
 				if remain < chunkSize {
@@ -894,7 +985,23 @@ func (w *Writer) appendTar(r io.Reader, lossless bool) error {
 				} else {
 					ent.ChunkSize = chunkSize
 				}
-				ent.Offset = w.cw.n
+
+				// We flush the underlying compression writer here to correctly calculate "w.cw.n".
+				if err := w.flushGz(); err != nil {
+					return err
+				}
+				if w.needsOpenGz(ent) || w.cw.n-prevOffset >= int64(w.MinChunkSize) {
+					if err := w.closeGz(); err != nil {
+						return err
+					}
+					ent.Offset = w.cw.n
+					prevOffset = ent.Offset
+					prevOffsetUncompressed = w.uncompressedCounter.n
+				} else {
+					ent.Offset = prevOffset
+					ent.InnerOffset = w.uncompressedCounter.n - prevOffsetUncompressed
+				}
+
 				ent.ChunkOffset = written
 				chunkDigest := digest.Canonical.Digester()
 
@@ -940,6 +1047,17 @@ func (w *Writer) appendTar(r io.Reader, lossless bool) error {
 	return err
 }
 
+func (w *Writer) needsOpenGz(ent *TOCEntry) bool {
+	if ent.Type != "reg" {
+		return false
+	}
+	if w.needsOpenGzEntries == nil {
+		return false
+	}
+	_, ok := w.needsOpenGzEntries[ent.Name]
+	return ok
+}
+
 // DiffID returns the SHA-256 of the uncompressed tar bytes.
 // It is only valid to call DiffID after Close.
 func (w *Writer) DiffID() string {
@@ -956,6 +1074,28 @@ func maxFooterSize(blobSize int64, decompressors ...Decompressor) (res int64) {
 }
 
 func parseTOC(d Decompressor, sr *io.SectionReader, tocOff, tocSize int64, tocBytes []byte, opts openOpts) (*Reader, error) {
+	if tocOff < 0 {
+		// This means that TOC isn't contained in the blob.
+		// We pass nil reader to ParseTOC and expect that ParseTOC acquire TOC from
+		// the external location.
+		start := time.Now()
+		toc, tocDgst, err := d.ParseTOC(nil)
+		if err != nil {
+			return nil, err
+		}
+		if opts.telemetry != nil && opts.telemetry.GetTocLatency != nil {
+			opts.telemetry.GetTocLatency(start)
+		}
+		if opts.telemetry != nil && opts.telemetry.DeserializeTocLatency != nil {
+			opts.telemetry.DeserializeTocLatency(start)
+		}
+		return &Reader{
+			sr:           sr,
+			toc:          toc,
+			tocDigest:    tocDgst,
+			decompressor: d,
+		}, nil
+	}
 	if len(tocBytes) > 0 {
 		start := time.Now()
 		toc, tocDgst, err := d.ParseTOC(bytes.NewReader(tocBytes))
@@ -1021,6 +1161,37 @@ func (cw *countWriter) Write(p []byte) (n int, err error) {
 	return
 }
 
+type countWriteFlusher struct {
+	io.WriteCloser
+	n int64
+}
+
+func (wc *countWriteFlusher) register(w io.WriteCloser) io.WriteCloser {
+	wc.WriteCloser = w
+	return wc
+}
+
+func (wc *countWriteFlusher) Write(p []byte) (n int, err error) {
+	n, err = wc.WriteCloser.Write(p)
+	wc.n += int64(n)
+	return
+}
+
+func (wc *countWriteFlusher) Flush() error {
+	if f, ok := wc.WriteCloser.(interface {
+		Flush() error
+	}); ok {
+		return f.Flush()
+	}
+	return nil
+}
+
+func (wc *countWriteFlusher) Close() error {
+	err := wc.WriteCloser.Close()
+	wc.WriteCloser = nil
+	return err
+}
+
 // isGzip reports whether br is positioned right before an upcoming gzip stream.
 // It does not consume any bytes from br.
 func isGzip(br *bufio.Reader) bool {
@@ -1039,3 +1210,14 @@ func positive(n int64) int64 {
 	}
 	return n
 }
+
+type countReader struct {
+	r io.Reader
+	n int64
+}
+
+func (cr *countReader) Read(p []byte) (n int, err error) {
+	n, err = cr.r.Read(p)
+	cr.n += int64(n)
+	return
+}

vendor/github.com/containerd/stargz-snapshotter/estargz/gzip.go

@@ -60,7 +60,7 @@ type GzipCompressor struct {
 	compressionLevel int
 }
 
-func (gc *GzipCompressor) Writer(w io.Writer) (io.WriteCloser, error) {
+func (gc *GzipCompressor) Writer(w io.Writer) (WriteFlushCloser, error) {
 	return gzip.NewWriterLevel(w, gc.compressionLevel)
 }
 

vendor/github.com/containerd/stargz-snapshotter/estargz/testutil.go

@@ -31,6 +31,7 @@ import (
 	"errors"
 	"fmt"
 	"io"
+	"math/rand"
 	"os"
 	"path/filepath"
 	"reflect"
@@ -44,21 +45,27 @@ import (
 	digest "github.com/opencontainers/go-digest"
 )
 
+func init() {
+	rand.Seed(time.Now().UnixNano())
+}
+
 // TestingController is Compression with some helper methods necessary for testing.
 type TestingController interface {
 	Compression
-	CountStreams(*testing.T, []byte) int
+	TestStreams(t *testing.T, b []byte, streams []int64)
 	DiffIDOf(*testing.T, []byte) string
 	String() string
 }
 
 // CompressionTestSuite tests this pkg with controllers can build valid eStargz blobs and parse them.
-func CompressionTestSuite(t *testing.T, controllers ...TestingController) {
+func CompressionTestSuite(t *testing.T, controllers ...TestingControllerFactory) {
 	t.Run("testBuild", func(t *testing.T) { t.Parallel(); testBuild(t, controllers...) })
 	t.Run("testDigestAndVerify", func(t *testing.T) { t.Parallel(); testDigestAndVerify(t, controllers...) })
 	t.Run("testWriteAndOpen", func(t *testing.T) { t.Parallel(); testWriteAndOpen(t, controllers...) })
 }
 
+type TestingControllerFactory func() TestingController
+
 const (
 	uncompressedType int = iota
 	gzipType
@@ -75,11 +82,12 @@ var allowedPrefix = [4]string{"", "./", "/", "../"}
 
 // testBuild tests the resulting stargz blob built by this pkg has the same
 // contents as the normal stargz blob.
-func testBuild(t *testing.T, controllers ...TestingController) {
+func testBuild(t *testing.T, controllers ...TestingControllerFactory) {
 	tests := []struct {
-		name      string
-		chunkSize int
-		in        []tarEntry
+		name         string
+		chunkSize    int
+		minChunkSize []int
+		in           []tarEntry
 	}{
 		{
 			name:      "regfiles and directories",
@@ -108,11 +116,14 @@ func testBuild(t *testing.T, controllers ...TestingController) {
 			),
 		},
 		{
-			name:      "various files",
-			chunkSize: 4,
+			name:         "various files",
+			chunkSize:    4,
+			minChunkSize: []int{0, 64000},
 			in: tarOf(
 				file("baz.txt", "bazbazbazbazbazbazbaz"),
-				file("foo.txt", "a"),
+				file("foo1.txt", "a"),
+				file("bar/foo2.txt", "b"),
+				file("foo3.txt", "c"),
 				symlink("barlink", "test/bar.txt"),
 				dir("test/"),
 				dir("dev/"),
@@ -144,99 +155,112 @@ func testBuild(t *testing.T, controllers ...TestingController) {
 		},
 	}
 	for _, tt := range tests {
+		if len(tt.minChunkSize) == 0 {
+			tt.minChunkSize = []int{0}
+		}
 		for _, srcCompression := range srcCompressions {
 			srcCompression := srcCompression
-			for _, cl := range controllers {
-				cl := cl
+			for _, newCL := range controllers {
+				newCL := newCL
 				for _, srcTarFormat := range []tar.Format{tar.FormatUSTAR, tar.FormatPAX, tar.FormatGNU} {
 					srcTarFormat := srcTarFormat
 					for _, prefix := range allowedPrefix {
 						prefix := prefix
-						t.Run(tt.name+"-"+fmt.Sprintf("compression=%v,prefix=%q,src=%d,format=%s", cl, prefix, srcCompression, srcTarFormat), func(t *testing.T) {
-							tarBlob := buildTar(t, tt.in, prefix, srcTarFormat)
-							// Test divideEntries()
-							entries, err := sortEntries(tarBlob, nil, nil) // identical order
-							if err != nil {
-								t.Fatalf("failed to parse tar: %v", err)
-							}
-							var merged []*entry
-							for _, part := range divideEntries(entries, 4) {
-								merged = append(merged, part...)
-							}
-							if !reflect.DeepEqual(entries, merged) {
-								for _, e := range entries {
-									t.Logf("Original: %v", e.header)
+						for _, minChunkSize := range tt.minChunkSize {
+							minChunkSize := minChunkSize
+							t.Run(tt.name+"-"+fmt.Sprintf("compression=%v,prefix=%q,src=%d,format=%s,minChunkSize=%d", newCL(), prefix, srcCompression, srcTarFormat, minChunkSize), func(t *testing.T) {
+								tarBlob := buildTar(t, tt.in, prefix, srcTarFormat)
+								// Test divideEntries()
+								entries, err := sortEntries(tarBlob, nil, nil) // identical order
+								if err != nil {
+									t.Fatalf("failed to parse tar: %v", err)
 								}
-								for _, e := range merged {
-									t.Logf("Merged: %v", e.header)
+								var merged []*entry
+								for _, part := range divideEntries(entries, 4) {
+									merged = append(merged, part...)
+								}
+								if !reflect.DeepEqual(entries, merged) {
+									for _, e := range entries {
+										t.Logf("Original: %v", e.header)
+									}
+									for _, e := range merged {
+										t.Logf("Merged: %v", e.header)
+									}
+									t.Errorf("divided entries couldn't be merged")
+									return
 								}
-								t.Errorf("divided entries couldn't be merged")
-								return
-							}
 
-							// Prepare sample data
-							wantBuf := new(bytes.Buffer)
-							sw := NewWriterWithCompressor(wantBuf, cl)
-							sw.ChunkSize = tt.chunkSize
-							if err := sw.AppendTar(tarBlob); err != nil {
-								t.Fatalf("failed to append tar to want stargz: %v", err)
-							}
-							if _, err := sw.Close(); err != nil {
-								t.Fatalf("failed to prepare want stargz: %v", err)
-							}
-							wantData := wantBuf.Bytes()
-							want, err := Open(io.NewSectionReader(
-								bytes.NewReader(wantData), 0, int64(len(wantData))),
-								WithDecompressors(cl),
-							)
-							if err != nil {
-								t.Fatalf("failed to parse the want stargz: %v", err)
-							}
+								// Prepare sample data
+								cl1 := newCL()
+								wantBuf := new(bytes.Buffer)
+								sw := NewWriterWithCompressor(wantBuf, cl1)
+								sw.MinChunkSize = minChunkSize
+								sw.ChunkSize = tt.chunkSize
+								if err := sw.AppendTar(tarBlob); err != nil {
+									t.Fatalf("failed to append tar to want stargz: %v", err)
+								}
+								if _, err := sw.Close(); err != nil {
+									t.Fatalf("failed to prepare want stargz: %v", err)
+								}
+								wantData := wantBuf.Bytes()
+								want, err := Open(io.NewSectionReader(
+									bytes.NewReader(wantData), 0, int64(len(wantData))),
+									WithDecompressors(cl1),
+								)
+								if err != nil {
+									t.Fatalf("failed to parse the want stargz: %v", err)
+								}
 
-							// Prepare testing data
-							rc, err := Build(compressBlob(t, tarBlob, srcCompression),
-								WithChunkSize(tt.chunkSize), WithCompression(cl))
-							if err != nil {
-								t.Fatalf("failed to build stargz: %v", err)
-							}
-							defer rc.Close()
-							gotBuf := new(bytes.Buffer)
-							if _, err := io.Copy(gotBuf, rc); err != nil {
-								t.Fatalf("failed to copy built stargz blob: %v", err)
-							}
-							gotData := gotBuf.Bytes()
-							got, err := Open(io.NewSectionReader(
-								bytes.NewReader(gotBuf.Bytes()), 0, int64(len(gotData))),
-								WithDecompressors(cl),
-							)
-							if err != nil {
-								t.Fatalf("failed to parse the got stargz: %v", err)
-							}
+								// Prepare testing data
+								var opts []Option
+								if minChunkSize > 0 {
+									opts = append(opts, WithMinChunkSize(minChunkSize))
+								}
+								cl2 := newCL()
+								rc, err := Build(compressBlob(t, tarBlob, srcCompression),
+									append(opts, WithChunkSize(tt.chunkSize), WithCompression(cl2))...)
+								if err != nil {
+									t.Fatalf("failed to build stargz: %v", err)
+								}
+								defer rc.Close()
+								gotBuf := new(bytes.Buffer)
+								if _, err := io.Copy(gotBuf, rc); err != nil {
+									t.Fatalf("failed to copy built stargz blob: %v", err)
+								}
+								gotData := gotBuf.Bytes()
+								got, err := Open(io.NewSectionReader(
+									bytes.NewReader(gotBuf.Bytes()), 0, int64(len(gotData))),
+									WithDecompressors(cl2),
+								)
+								if err != nil {
+									t.Fatalf("failed to parse the got stargz: %v", err)
+								}
 
-							// Check DiffID is properly calculated
-							rc.Close()
-							diffID := rc.DiffID()
-							wantDiffID := cl.DiffIDOf(t, gotData)
-							if diffID.String() != wantDiffID {
-								t.Errorf("DiffID = %q; want %q", diffID, wantDiffID)
-							}
+								// Check DiffID is properly calculated
+								rc.Close()
+								diffID := rc.DiffID()
+								wantDiffID := cl2.DiffIDOf(t, gotData)
+								if diffID.String() != wantDiffID {
+									t.Errorf("DiffID = %q; want %q", diffID, wantDiffID)
+								}
 
-							// Compare as stargz
-							if !isSameVersion(t, cl, wantData, gotData) {
-								t.Errorf("built stargz hasn't same json")
-								return
-							}
-							if !isSameEntries(t, want, got) {
-								t.Errorf("built stargz isn't same as the original")
-								return
-							}
+								// Compare as stargz
+								if !isSameVersion(t, cl1, wantData, cl2, gotData) {
+									t.Errorf("built stargz hasn't same json")
+									return
+								}
+								if !isSameEntries(t, want, got) {
+									t.Errorf("built stargz isn't same as the original")
+									return
+								}
 
-							// Compare as tar.gz
-							if !isSameTarGz(t, cl, wantData, gotData) {
-								t.Errorf("built stargz isn't same tar.gz")
-								return
-							}
-						})
+								// Compare as tar.gz
+								if !isSameTarGz(t, cl1, wantData, cl2, gotData) {
+									t.Errorf("built stargz isn't same tar.gz")
+									return
+								}
+							})
+						}
 					}
 				}
 			}
@@ -244,13 +268,13 @@ func testBuild(t *testing.T, controllers ...TestingController) {
 	}
 }
 
-func isSameTarGz(t *testing.T, controller TestingController, a, b []byte) bool {
-	aGz, err := controller.Reader(bytes.NewReader(a))
+func isSameTarGz(t *testing.T, cla TestingController, a []byte, clb TestingController, b []byte) bool {
+	aGz, err := cla.Reader(bytes.NewReader(a))
 	if err != nil {
 		t.Fatalf("failed to read A")
 	}
 	defer aGz.Close()
-	bGz, err := controller.Reader(bytes.NewReader(b))
+	bGz, err := clb.Reader(bytes.NewReader(b))
 	if err != nil {
 		t.Fatalf("failed to read B")
 	}
@@ -304,12 +328,12 @@ func isSameTarGz(t *testing.T, controller TestingController, a, b []byte) bool {
 	return true
 }
 
-func isSameVersion(t *testing.T, controller TestingController, a, b []byte) bool {
-	aJTOC, _, err := parseStargz(io.NewSectionReader(bytes.NewReader(a), 0, int64(len(a))), controller)
+func isSameVersion(t *testing.T, cla TestingController, a []byte, clb TestingController, b []byte) bool {
+	aJTOC, _, err := parseStargz(io.NewSectionReader(bytes.NewReader(a), 0, int64(len(a))), cla)
 	if err != nil {
 		t.Fatalf("failed to parse A: %v", err)
 	}
-	bJTOC, _, err := parseStargz(io.NewSectionReader(bytes.NewReader(b), 0, int64(len(b))), controller)
+	bJTOC, _, err := parseStargz(io.NewSectionReader(bytes.NewReader(b), 0, int64(len(b))), clb)
 	if err != nil {
 		t.Fatalf("failed to parse B: %v", err)
 	}
@@ -463,7 +487,7 @@ func equalEntry(a, b *TOCEntry) bool {
 		a.GID == b.GID &&
 		a.Uname == b.Uname &&
 		a.Gname == b.Gname &&
-		(a.Offset > 0) == (b.Offset > 0) &&
+		(a.Offset >= 0) == (b.Offset >= 0) &&
 		(a.NextOffset() > 0) == (b.NextOffset() > 0) &&
 		a.DevMajor == b.DevMajor &&
 		a.DevMinor == b.DevMinor &&
@@ -510,14 +534,15 @@ func dumpTOCJSON(t *testing.T, tocJSON *JTOC) string {
 const chunkSize = 3
 
 // type check func(t *testing.T, sgzData []byte, tocDigest digest.Digest, dgstMap map[string]digest.Digest, compressionLevel int)
-type check func(t *testing.T, sgzData []byte, tocDigest digest.Digest, dgstMap map[string]digest.Digest, controller TestingController)
+type check func(t *testing.T, sgzData []byte, tocDigest digest.Digest, dgstMap map[string]digest.Digest, controller TestingController, newController TestingControllerFactory)
 
 // testDigestAndVerify runs specified checks against sample stargz blobs.
-func testDigestAndVerify(t *testing.T, controllers ...TestingController) {
+func testDigestAndVerify(t *testing.T, controllers ...TestingControllerFactory) {
 	tests := []struct {
-		name    string
-		tarInit func(t *testing.T, dgstMap map[string]digest.Digest) (blob []tarEntry)
-		checks  []check
+		name         string
+		tarInit      func(t *testing.T, dgstMap map[string]digest.Digest) (blob []tarEntry)
+		checks       []check
+		minChunkSize []int
 	}{
 		{
 			name: "no-regfile",
@@ -544,6 +569,7 @@ func testDigestAndVerify(t *testing.T, controllers ...TestingController) {
 					regDigest(t, "test/bar.txt", "bbb", dgstMap),
 				)
 			},
+			minChunkSize: []int{0, 64000},
 			checks: []check{
 				checkStargzTOC,
 				checkVerifyTOC,
@@ -581,11 +607,14 @@ func testDigestAndVerify(t *testing.T, controllers ...TestingController) {
 			},
 		},
 		{
-			name: "with-non-regfiles",
+			name:         "with-non-regfiles",
+			minChunkSize: []int{0, 64000},
 			tarInit: func(t *testing.T, dgstMap map[string]digest.Digest) (blob []tarEntry) {
 				return tarOf(
 					regDigest(t, "baz.txt", "bazbazbazbazbazbazbaz", dgstMap),
 					regDigest(t, "foo.txt", "a", dgstMap),
+					regDigest(t, "bar/foo2.txt", "b", dgstMap),
+					regDigest(t, "foo3.txt", "c", dgstMap),
 					symlink("barlink", "test/bar.txt"),
 					dir("test/"),
 					regDigest(t, "test/bar.txt", "testbartestbar", dgstMap),
@@ -599,6 +628,8 @@ func testDigestAndVerify(t *testing.T, controllers ...TestingController) {
 				checkVerifyInvalidStargzFail(buildTar(t, tarOf(
 					file("baz.txt", "bazbazbazbazbazbazbaz"),
 					file("foo.txt", "a"),
+					file("bar/foo2.txt", "b"),
+					file("foo3.txt", "c"),
 					symlink("barlink", "test/bar.txt"),
 					dir("test/"),
 					file("test/bar.txt", "testbartestbar"),
@@ -612,38 +643,45 @@ func testDigestAndVerify(t *testing.T, controllers ...TestingController) {
 	}
 
 	for _, tt := range tests {
+		if len(tt.minChunkSize) == 0 {
+			tt.minChunkSize = []int{0}
+		}
 		for _, srcCompression := range srcCompressions {
 			srcCompression := srcCompression
-			for _, cl := range controllers {
-				cl := cl
+			for _, newCL := range controllers {
+				newCL := newCL
 				for _, prefix := range allowedPrefix {
 					prefix := prefix
 					for _, srcTarFormat := range []tar.Format{tar.FormatUSTAR, tar.FormatPAX, tar.FormatGNU} {
 						srcTarFormat := srcTarFormat
-						t.Run(tt.name+"-"+fmt.Sprintf("compression=%v,prefix=%q,format=%s", cl, prefix, srcTarFormat), func(t *testing.T) {
-							// Get original tar file and chunk digests
-							dgstMap := make(map[string]digest.Digest)
-							tarBlob := buildTar(t, tt.tarInit(t, dgstMap), prefix, srcTarFormat)
+						for _, minChunkSize := range tt.minChunkSize {
+							minChunkSize := minChunkSize
+							t.Run(tt.name+"-"+fmt.Sprintf("compression=%v,prefix=%q,format=%s,minChunkSize=%d", newCL(), prefix, srcTarFormat, minChunkSize), func(t *testing.T) {
+								// Get original tar file and chunk digests
+								dgstMap := make(map[string]digest.Digest)
+								tarBlob := buildTar(t, tt.tarInit(t, dgstMap), prefix, srcTarFormat)
 
-							rc, err := Build(compressBlob(t, tarBlob, srcCompression),
-								WithChunkSize(chunkSize), WithCompression(cl))
-							if err != nil {
-								t.Fatalf("failed to convert stargz: %v", err)
-							}
-							tocDigest := rc.TOCDigest()
-							defer rc.Close()
-							buf := new(bytes.Buffer)
-							if _, err := io.Copy(buf, rc); err != nil {
-								t.Fatalf("failed to copy built stargz blob: %v", err)
-							}
-							newStargz := buf.Bytes()
-							// NoPrefetchLandmark is added during `Bulid`, which is expected behaviour.
-							dgstMap[chunkID(NoPrefetchLandmark, 0, int64(len([]byte{landmarkContents})))] = digest.FromBytes([]byte{landmarkContents})
+								cl := newCL()
+								rc, err := Build(compressBlob(t, tarBlob, srcCompression),
+									WithChunkSize(chunkSize), WithCompression(cl))
+								if err != nil {
+									t.Fatalf("failed to convert stargz: %v", err)
+								}
+								tocDigest := rc.TOCDigest()
+								defer rc.Close()
+								buf := new(bytes.Buffer)
+								if _, err := io.Copy(buf, rc); err != nil {
+									t.Fatalf("failed to copy built stargz blob: %v", err)
+								}
+								newStargz := buf.Bytes()
+								// NoPrefetchLandmark is added during `Bulid`, which is expected behaviour.
+								dgstMap[chunkID(NoPrefetchLandmark, 0, int64(len([]byte{landmarkContents})))] = digest.FromBytes([]byte{landmarkContents})
 
-							for _, check := range tt.checks {
-								check(t, newStargz, tocDigest, dgstMap, cl)
-							}
-						})
+								for _, check := range tt.checks {
+									check(t, newStargz, tocDigest, dgstMap, cl, newCL)
+								}
+							})
+						}
 					}
 				}
 			}
@@ -654,7 +692,7 @@ func testDigestAndVerify(t *testing.T, controllers ...TestingController) {
 // checkStargzTOC checks the TOC JSON of the passed stargz has the expected
 // digest and contains valid chunks. It walks all entries in the stargz and
 // checks all chunk digests stored to the TOC JSON match the actual contents.
-func checkStargzTOC(t *testing.T, sgzData []byte, tocDigest digest.Digest, dgstMap map[string]digest.Digest, controller TestingController) {
+func checkStargzTOC(t *testing.T, sgzData []byte, tocDigest digest.Digest, dgstMap map[string]digest.Digest, controller TestingController, newController TestingControllerFactory) {
 	sgz, err := Open(
 		io.NewSectionReader(bytes.NewReader(sgzData), 0, int64(len(sgzData))),
 		WithDecompressors(controller),
@@ -765,7 +803,7 @@ func checkStargzTOC(t *testing.T, sgzData []byte, tocDigest digest.Digest, dgstM
 // checkVerifyTOC checks the verification works for the TOC JSON of the passed
 // stargz. It walks all entries in the stargz and checks the verifications for
 // all chunks work.
-func checkVerifyTOC(t *testing.T, sgzData []byte, tocDigest digest.Digest, dgstMap map[string]digest.Digest, controller TestingController) {
+func checkVerifyTOC(t *testing.T, sgzData []byte, tocDigest digest.Digest, dgstMap map[string]digest.Digest, controller TestingController, newController TestingControllerFactory) {
 	sgz, err := Open(
 		io.NewSectionReader(bytes.NewReader(sgzData), 0, int64(len(sgzData))),
 		WithDecompressors(controller),
@@ -846,7 +884,7 @@ func checkVerifyTOC(t *testing.T, sgzData []byte, tocDigest digest.Digest, dgstM
 // checkVerifyInvalidTOCEntryFail checks if misconfigured TOC JSON can be
 // detected during the verification and the verification returns an error.
 func checkVerifyInvalidTOCEntryFail(filename string) check {
-	return func(t *testing.T, sgzData []byte, tocDigest digest.Digest, dgstMap map[string]digest.Digest, controller TestingController) {
+	return func(t *testing.T, sgzData []byte, tocDigest digest.Digest, dgstMap map[string]digest.Digest, controller TestingController, newController TestingControllerFactory) {
 		funcs := map[string]rewriteFunc{
 			"lost digest in a entry": func(t *testing.T, toc *JTOC, sgz *io.SectionReader) {
 				var found bool
@@ -920,8 +958,9 @@ func checkVerifyInvalidTOCEntryFail(filename string) check {
 // checkVerifyInvalidStargzFail checks if the verification detects that the
 // given stargz file doesn't match to the expected digest and returns error.
 func checkVerifyInvalidStargzFail(invalid *io.SectionReader) check {
-	return func(t *testing.T, sgzData []byte, tocDigest digest.Digest, dgstMap map[string]digest.Digest, controller TestingController) {
-		rc, err := Build(invalid, WithChunkSize(chunkSize), WithCompression(controller))
+	return func(t *testing.T, sgzData []byte, tocDigest digest.Digest, dgstMap map[string]digest.Digest, controller TestingController, newController TestingControllerFactory) {
+		cl := newController()
+		rc, err := Build(invalid, WithChunkSize(chunkSize), WithCompression(cl))
 		if err != nil {
 			t.Fatalf("failed to convert stargz: %v", err)
 		}
@@ -934,7 +973,7 @@ func checkVerifyInvalidStargzFail(invalid *io.SectionReader) check {
 
 		sgz, err := Open(
 			io.NewSectionReader(bytes.NewReader(mStargz), 0, int64(len(mStargz))),
-			WithDecompressors(controller),
+			WithDecompressors(cl),
 		)
 		if err != nil {
 			t.Fatalf("failed to parse converted stargz: %v", err)
@@ -951,7 +990,7 @@ func checkVerifyInvalidStargzFail(invalid *io.SectionReader) check {
 // checkVerifyBrokenContentFail checks if the verifier detects broken contents
 // that doesn't match to the expected digest and returns error.
 func checkVerifyBrokenContentFail(filename string) check {
-	return func(t *testing.T, sgzData []byte, tocDigest digest.Digest, dgstMap map[string]digest.Digest, controller TestingController) {
+	return func(t *testing.T, sgzData []byte, tocDigest digest.Digest, dgstMap map[string]digest.Digest, controller TestingController, newController TestingControllerFactory) {
 		// Parse stargz file
 		sgz, err := Open(
 			io.NewSectionReader(bytes.NewReader(sgzData), 0, int64(len(sgzData))),
@@ -1070,7 +1109,10 @@ func parseStargz(sgz *io.SectionReader, controller TestingController) (decodedJT
 	}
 
 	// Decode the TOC JSON
-	tocReader := io.NewSectionReader(sgz, tocOffset, sgz.Size()-tocOffset-fSize)
+	var tocReader io.Reader
+	if tocOffset >= 0 {
+		tocReader = io.NewSectionReader(sgz, tocOffset, sgz.Size()-tocOffset-fSize)
+	}
 	decodedJTOC, _, err = controller.ParseTOC(tocReader)
 	if err != nil {
 		return nil, 0, fmt.Errorf("failed to parse TOC: %w", err)
@@ -1078,28 +1120,31 @@ func parseStargz(sgz *io.SectionReader, controller TestingController) (decodedJT
 	return decodedJTOC, tocOffset, nil
 }
 
-func testWriteAndOpen(t *testing.T, controllers ...TestingController) {
+func testWriteAndOpen(t *testing.T, controllers ...TestingControllerFactory) {
 	const content = "Some contents"
 	invalidUtf8 := "\xff\xfe\xfd"
 
 	xAttrFile := xAttr{"foo": "bar", "invalid-utf8": invalidUtf8}
 	sampleOwner := owner{uid: 50, gid: 100}
 
+	data64KB := randomContents(64000)
+
 	tests := []struct {
-		name      string
-		chunkSize int
-		in        []tarEntry
-		want      []stargzCheck
-		wantNumGz int // expected number of streams
+		name         string
+		chunkSize    int
+		minChunkSize int
+		in           []tarEntry
+		want         []stargzCheck
+		wantNumGz    int // expected number of streams
 
 		wantNumGzLossLess  int // expected number of streams (> 0) in lossless mode if it's different from wantNumGz
 		wantFailOnLossLess bool
+		wantTOCVersion     int // default = 1
 	}{
 		{
-			name:              "empty",
-			in:                tarOf(),
-			wantNumGz:         2, // empty tar + TOC + footer
-			wantNumGzLossLess: 3, // empty tar + TOC + footer
+			name:      "empty",
+			in:        tarOf(),
+			wantNumGz: 2, // (empty tar) + TOC + footer
 			want: checks(
 				numTOCEntries(0),
 			),
@@ -1195,7 +1240,7 @@ func testWriteAndOpen(t *testing.T, controllers ...TestingController) {
 				dir("foo/"),
 				file("foo/big.txt", "This "+"is s"+"uch "+"a bi"+"g fi"+"le"),
 			),
-			wantNumGz: 9,
+			wantNumGz: 9, // dir + big.txt(6 chunks) + TOC + footer
 			want: checks(
 				numTOCEntries(7), // 1 for foo dir, 6 for the foo/big.txt file
 				hasDir("foo/"),
@@ -1326,23 +1371,108 @@ func testWriteAndOpen(t *testing.T, controllers ...TestingController) {
 				mustSameEntry("foo/foo1", "foolink"),
 			),
 		},
+		{
+			name:         "several_files_in_chunk",
+			minChunkSize: 8000,
+			in: tarOf(
+				dir("foo/"),
+				file("foo/foo1", data64KB),
+				file("foo2", "bb"),
+				file("foo22", "ccc"),
+				dir("bar/"),
+				file("bar/bar.txt", "aaa"),
+				file("foo3", data64KB),
+			),
+			// NOTE: we assume that the compressed "data64KB" is still larger than 8KB
+			wantNumGz: 4, // dir+foo1, foo2+foo22+dir+bar.txt+foo3, TOC, footer
+			want: checks(
+				numTOCEntries(7), // dir, foo1, foo2, foo22, dir, bar.txt, foo3
+				hasDir("foo/"),
+				hasDir("bar/"),
+				hasFileLen("foo/foo1", len(data64KB)),
+				hasFileLen("foo2", len("bb")),
+				hasFileLen("foo22", len("ccc")),
+				hasFileLen("bar/bar.txt", len("aaa")),
+				hasFileLen("foo3", len(data64KB)),
+				hasFileDigest("foo/foo1", digestFor(data64KB)),
+				hasFileDigest("foo2", digestFor("bb")),
+				hasFileDigest("foo22", digestFor("ccc")),
+				hasFileDigest("bar/bar.txt", digestFor("aaa")),
+				hasFileDigest("foo3", digestFor(data64KB)),
+				hasFileContentsWithPreRead("foo22", 0, "ccc", chunkInfo{"foo2", "bb"}, chunkInfo{"bar/bar.txt", "aaa"}, chunkInfo{"foo3", data64KB}),
+				hasFileContentsRange("foo/foo1", 0, data64KB),
+				hasFileContentsRange("foo2", 0, "bb"),
+				hasFileContentsRange("foo2", 1, "b"),
+				hasFileContentsRange("foo22", 0, "ccc"),
+				hasFileContentsRange("foo22", 1, "cc"),
+				hasFileContentsRange("foo22", 2, "c"),
+				hasFileContentsRange("bar/bar.txt", 0, "aaa"),
+				hasFileContentsRange("bar/bar.txt", 1, "aa"),
+				hasFileContentsRange("bar/bar.txt", 2, "a"),
+				hasFileContentsRange("foo3", 0, data64KB),
+				hasFileContentsRange("foo3", 1, data64KB[1:]),
+				hasFileContentsRange("foo3", 2, data64KB[2:]),
+				hasFileContentsRange("foo3", len(data64KB)/2, data64KB[len(data64KB)/2:]),
+				hasFileContentsRange("foo3", len(data64KB)-1, data64KB[len(data64KB)-1:]),
+			),
+		},
+		{
+			name:         "several_files_in_chunk_chunked",
+			minChunkSize: 8000,
+			chunkSize:    32000,
+			in: tarOf(
+				dir("foo/"),
+				file("foo/foo1", data64KB),
+				file("foo2", "bb"),
+				dir("bar/"),
+				file("foo3", data64KB),
+			),
+			// NOTE: we assume that the compressed chunk of "data64KB" is still larger than 8KB
+			wantNumGz: 6, // dir+foo1(1), foo1(2), foo2+dir+foo3(1), foo3(2), TOC, footer
+			want: checks(
+				numTOCEntries(7), // dir, foo1(2 chunks), foo2, dir, foo3(2 chunks)
+				hasDir("foo/"),
+				hasDir("bar/"),
+				hasFileLen("foo/foo1", len(data64KB)),
+				hasFileLen("foo2", len("bb")),
+				hasFileLen("foo3", len(data64KB)),
+				hasFileDigest("foo/foo1", digestFor(data64KB)),
+				hasFileDigest("foo2", digestFor("bb")),
+				hasFileDigest("foo3", digestFor(data64KB)),
+				hasFileContentsWithPreRead("foo2", 0, "bb", chunkInfo{"foo3", data64KB[:32000]}),
+				hasFileContentsRange("foo/foo1", 0, data64KB),
+				hasFileContentsRange("foo/foo1", 1, data64KB[1:]),
+				hasFileContentsRange("foo/foo1", 2, data64KB[2:]),
+				hasFileContentsRange("foo/foo1", len(data64KB)/2, data64KB[len(data64KB)/2:]),
+				hasFileContentsRange("foo/foo1", len(data64KB)-1, data64KB[len(data64KB)-1:]),
+				hasFileContentsRange("foo2", 0, "bb"),
+				hasFileContentsRange("foo2", 1, "b"),
+				hasFileContentsRange("foo3", 0, data64KB),
+				hasFileContentsRange("foo3", 1, data64KB[1:]),
+				hasFileContentsRange("foo3", 2, data64KB[2:]),
+				hasFileContentsRange("foo3", len(data64KB)/2, data64KB[len(data64KB)/2:]),
+				hasFileContentsRange("foo3", len(data64KB)-1, data64KB[len(data64KB)-1:]),
+			),
+		},
 	}
 
 	for _, tt := range tests {
-		for _, cl := range controllers {
-			cl := cl
+		for _, newCL := range controllers {
+			newCL := newCL
 			for _, prefix := range allowedPrefix {
 				prefix := prefix
 				for _, srcTarFormat := range []tar.Format{tar.FormatUSTAR, tar.FormatPAX, tar.FormatGNU} {
 					srcTarFormat := srcTarFormat
 					for _, lossless := range []bool{true, false} {
-						t.Run(tt.name+"-"+fmt.Sprintf("compression=%v,prefix=%q,lossless=%v,format=%s", cl, prefix, lossless, srcTarFormat), func(t *testing.T) {
+						t.Run(tt.name+"-"+fmt.Sprintf("compression=%v,prefix=%q,lossless=%v,format=%s", newCL(), prefix, lossless, srcTarFormat), func(t *testing.T) {
 							var tr io.Reader = buildTar(t, tt.in, prefix, srcTarFormat)
 							origTarDgstr := digest.Canonical.Digester()
 							tr = io.TeeReader(tr, origTarDgstr.Hash())
 							var stargzBuf bytes.Buffer
-							w := NewWriterWithCompressor(&stargzBuf, cl)
+							cl1 := newCL()
+							w := NewWriterWithCompressor(&stargzBuf, cl1)
 							w.ChunkSize = tt.chunkSize
+							w.MinChunkSize = tt.minChunkSize
 							if lossless {
 								err := w.AppendTarLossLess(tr)
 								if tt.wantFailOnLossLess {
@@ -1366,7 +1496,7 @@ func testWriteAndOpen(t *testing.T, controllers ...TestingController) {
 
 							if lossless {
 								// Check if the result blob reserves original tar metadata
-								rc, err := Unpack(io.NewSectionReader(bytes.NewReader(b), 0, int64(len(b))), cl)
+								rc, err := Unpack(io.NewSectionReader(bytes.NewReader(b), 0, int64(len(b))), cl1)
 								if err != nil {
 									t.Errorf("failed to decompress blob: %v", err)
 									return
@@ -1385,32 +1515,71 @@ func testWriteAndOpen(t *testing.T, controllers ...TestingController) {
 							}
 
 							diffID := w.DiffID()
-							wantDiffID := cl.DiffIDOf(t, b)
+							wantDiffID := cl1.DiffIDOf(t, b)
 							if diffID != wantDiffID {
 								t.Errorf("DiffID = %q; want %q", diffID, wantDiffID)
 							}
 
-							got := cl.CountStreams(t, b)
-							wantNumGz := tt.wantNumGz
-							if lossless && tt.wantNumGzLossLess > 0 {
-								wantNumGz = tt.wantNumGzLossLess
-							}
-							if got != wantNumGz {
-								t.Errorf("number of streams = %d; want %d", got, wantNumGz)
-							}
-
 							telemetry, checkCalled := newCalledTelemetry()
+							sr := io.NewSectionReader(bytes.NewReader(b), 0, int64(len(b)))
 							r, err := Open(
-								io.NewSectionReader(bytes.NewReader(b), 0, int64(len(b))),
-								WithDecompressors(cl),
+								sr,
+								WithDecompressors(cl1),
 								WithTelemetry(telemetry),
 							)
 							if err != nil {
 								t.Fatalf("stargz.Open: %v", err)
 							}
-							if err := checkCalled(); err != nil {
+							wantTOCVersion := 1
+							if tt.wantTOCVersion > 0 {
+								wantTOCVersion = tt.wantTOCVersion
+							}
+							if r.toc.Version != wantTOCVersion {
+								t.Fatalf("invalid TOC Version %d; wanted %d", r.toc.Version, wantTOCVersion)
+							}
+
+							footerSize := cl1.FooterSize()
+							footerOffset := sr.Size() - footerSize
+							footer := make([]byte, footerSize)
+							if _, err := sr.ReadAt(footer, footerOffset); err != nil {
+								t.Errorf("failed to read footer: %v", err)
+							}
+							_, tocOffset, _, err := cl1.ParseFooter(footer)
+							if err != nil {
+								t.Errorf("failed to parse footer: %v", err)
+							}
+							if err := checkCalled(tocOffset >= 0); err != nil {
 								t.Errorf("telemetry failure: %v", err)
 							}
+
+							wantNumGz := tt.wantNumGz
+							if lossless && tt.wantNumGzLossLess > 0 {
+								wantNumGz = tt.wantNumGzLossLess
+							}
+							streamOffsets := []int64{0}
+							prevOffset := int64(-1)
+							streams := 0
+							for _, e := range r.toc.Entries {
+								if e.Offset > prevOffset {
+									streamOffsets = append(streamOffsets, e.Offset)
+									prevOffset = e.Offset
+									streams++
+								}
+							}
+							streams++ // TOC
+							if tocOffset >= 0 {
+								// toc is in the blob
+								streamOffsets = append(streamOffsets, tocOffset)
+							}
+							streams++ // footer
+							streamOffsets = append(streamOffsets, footerOffset)
+							if streams != wantNumGz {
+								t.Errorf("number of streams in TOC = %d; want %d", streams, wantNumGz)
+							}
+
+							t.Logf("testing streams: %+v", streamOffsets)
+							cl1.TestStreams(t, b, streamOffsets)
+
 							for _, want := range tt.want {
 								want.check(t, r)
 							}
@@ -1422,7 +1591,12 @@ func testWriteAndOpen(t *testing.T, controllers ...TestingController) {
 	}
 }
 
-func newCalledTelemetry() (telemetry *Telemetry, check func() error) {
+type chunkInfo struct {
+	name string
+	data string
+}
+
+func newCalledTelemetry() (telemetry *Telemetry, check func(needsGetTOC bool) error) {
 	var getFooterLatencyCalled bool
 	var getTocLatencyCalled bool
 	var deserializeTocLatencyCalled bool
@@ -1430,13 +1604,15 @@ func newCalledTelemetry() (telemetry *Telemetry, check func() error) {
 			func(time.Time) { getFooterLatencyCalled = true },
 			func(time.Time) { getTocLatencyCalled = true },
 			func(time.Time) { deserializeTocLatencyCalled = true },
-		}, func() error {
+		}, func(needsGetTOC bool) error {
 			var allErr []error
 			if !getFooterLatencyCalled {
 				allErr = append(allErr, fmt.Errorf("metrics GetFooterLatency isn't called"))
 			}
-			if !getTocLatencyCalled {
-				allErr = append(allErr, fmt.Errorf("metrics GetTocLatency isn't called"))
+			if needsGetTOC {
+				if !getTocLatencyCalled {
+					allErr = append(allErr, fmt.Errorf("metrics GetTocLatency isn't called"))
+				}
 			}
 			if !deserializeTocLatencyCalled {
 				allErr = append(allErr, fmt.Errorf("metrics DeserializeTocLatency isn't called"))
@@ -1573,6 +1749,53 @@ func hasFileDigest(file string, digest string) stargzCheck {
 	})
 }
 
+func hasFileContentsWithPreRead(file string, offset int, want string, extra ...chunkInfo) stargzCheck {
+	return stargzCheckFn(func(t *testing.T, r *Reader) {
+		extraMap := make(map[string]chunkInfo)
+		for _, e := range extra {
+			extraMap[e.name] = e
+		}
+		var extraNames []string
+		for n := range extraMap {
+			extraNames = append(extraNames, n)
+		}
+		f, err := r.OpenFileWithPreReader(file, func(e *TOCEntry, cr io.Reader) error {
+			t.Logf("On %q: got preread of %q", file, e.Name)
+			ex, ok := extraMap[e.Name]
+			if !ok {
+				t.Fatalf("fail on %q: unexpected entry %q: %+v, %+v", file, e.Name, e, extraNames)
+			}
+			got, err := io.ReadAll(cr)
+			if err != nil {
+				t.Fatalf("fail on %q: failed to read %q: %v", file, e.Name, err)
+			}
+			if ex.data != string(got) {
+				t.Fatalf("fail on %q: unexpected contents of %q: len=%d; want=%d", file, e.Name, len(got), len(ex.data))
+			}
+			delete(extraMap, e.Name)
+			return nil
+		})
+		if err != nil {
+			t.Fatal(err)
+		}
+		got := make([]byte, len(want))
+		n, err := f.ReadAt(got, int64(offset))
+		if err != nil {
+			t.Fatalf("ReadAt(len %d, offset %d, size %d) = %v, %v", len(got), offset, f.Size(), n, err)
+		}
+		if string(got) != want {
+			t.Fatalf("ReadAt(len %d, offset %d) = %q, want %q", len(got), offset, viewContent(got), viewContent([]byte(want)))
+		}
+		if len(extraMap) != 0 {
+			var exNames []string
+			for _, ex := range extraMap {
+				exNames = append(exNames, ex.name)
+			}
+			t.Fatalf("fail on %q: some entries aren't read: %+v", file, exNames)
+		}
+	})
+}
+
 func hasFileContentsRange(file string, offset int, want string) stargzCheck {
 	return stargzCheckFn(func(t *testing.T, r *Reader) {
 		f, err := r.OpenFile(file)
@@ -1585,7 +1808,7 @@ func hasFileContentsRange(file string, offset int, want string) stargzCheck {
 			t.Fatalf("ReadAt(len %d, offset %d) = %v, %v", len(got), offset, n, err)
 		}
 		if string(got) != want {
-			t.Fatalf("ReadAt(len %d, offset %d) = %q, want %q", len(got), offset, got, want)
+			t.Fatalf("ReadAt(len %d, offset %d) = %q, want %q", len(got), offset, viewContent(got), viewContent([]byte(want)))
 		}
 	})
 }
@@ -1797,6 +2020,13 @@ func mustSameEntry(files ...string) stargzCheck {
 	})
 }
 
+func viewContent(c []byte) string {
+	if len(c) < 100 {
+		return string(c)
+	}
+	return string(c[:50]) + "...(omit)..." + string(c[50:100])
+}
+
 func tarOf(s ...tarEntry) []tarEntry { return s }
 
 type tarEntry interface {
@@ -2056,6 +2286,16 @@ func regDigest(t *testing.T, name string, contentStr string, digestMap map[strin
 	})
 }
 
+var runes = []rune("1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ")
+
+func randomContents(n int) string {
+	b := make([]rune, n)
+	for i := range b {
+		b[i] = runes[rand.Intn(len(runes))]
+	}
+	return string(b)
+}
+
 func fileModeToTarMode(mode os.FileMode) (int64, error) {
 	h, err := tar.FileInfoHeader(fileInfoOnlyMode(mode), "")
 	if err != nil {
@@ -2073,3 +2313,54 @@ func (f fileInfoOnlyMode) Mode() os.FileMode  { return os.FileMode(f) }
 func (f fileInfoOnlyMode) ModTime() time.Time { return time.Now() }
 func (f fileInfoOnlyMode) IsDir() bool        { return os.FileMode(f).IsDir() }
 func (f fileInfoOnlyMode) Sys() interface{}   { return nil }
+
+func CheckGzipHasStreams(t *testing.T, b []byte, streams []int64) {
+	if len(streams) == 0 {
+		return // nop
+	}
+
+	wants := map[int64]struct{}{}
+	for _, s := range streams {
+		wants[s] = struct{}{}
+	}
+
+	len0 := len(b)
+	br := bytes.NewReader(b)
+	zr := new(gzip.Reader)
+	t.Logf("got gzip streams:")
+	numStreams := 0
+	for {
+		zoff := len0 - br.Len()
+		if err := zr.Reset(br); err != nil {
+			if err == io.EOF {
+				return
+			}
+			t.Fatalf("countStreams(gzip), Reset: %v", err)
+		}
+		zr.Multistream(false)
+		n, err := io.Copy(io.Discard, zr)
+		if err != nil {
+			t.Fatalf("countStreams(gzip), Copy: %v", err)
+		}
+		var extra string
+		if len(zr.Header.Extra) > 0 {
+			extra = fmt.Sprintf("; extra=%q", zr.Header.Extra)
+		}
+		t.Logf("  [%d] at %d in stargz, uncompressed length %d%s", numStreams, zoff, n, extra)
+		delete(wants, int64(zoff))
+		numStreams++
+	}
+}
+
+func GzipDiffIDOf(t *testing.T, b []byte) string {
+	h := sha256.New()
+	zr, err := gzip.NewReader(bytes.NewReader(b))
+	if err != nil {
+		t.Fatalf("diffIDOf(gzip): %v", err)
+	}
+	defer zr.Close()
+	if _, err := io.Copy(h, zr); err != nil {
+		t.Fatalf("diffIDOf(gzip).Copy: %v", err)
+	}
+	return fmt.Sprintf("sha256:%x", h.Sum(nil))
+}

vendor/github.com/containerd/stargz-snapshotter/estargz/types.go

@@ -149,6 +149,12 @@ type TOCEntry struct {
 	// ChunkSize.
 	Offset int64 `json:"offset,omitempty"`
 
+	// InnerOffset is an optional field indicates uncompressed offset
+	// of this "reg" or "chunk" payload in a stream starts from Offset.
+	// This field enables to put multiple "reg" or "chunk" payloads
+	// in one chunk with having the same Offset but different InnerOffset.
+	InnerOffset int64 `json:"innerOffset,omitempty"`
+
 	nextOffset int64 // the Offset of the next entry with a non-zero Offset
 
 	// DevMajor is the major device number for "char" and "block" types.
@@ -186,6 +192,9 @@ type TOCEntry struct {
 	ChunkDigest string `json:"chunkDigest,omitempty"`
 
 	children map[string]*TOCEntry
+
+	// chunkTopIndex is index of the entry where Offset starts in the blob.
+	chunkTopIndex int
 }
 
 // ModTime returns the entry's modification time.
@@ -279,7 +288,10 @@ type Compressor interface {
 	// Writer returns WriteCloser to be used for writing a chunk to eStargz.
 	// Everytime a chunk is written, the WriteCloser is closed and Writer is
 	// called again for writing the next chunk.
-	Writer(w io.Writer) (io.WriteCloser, error)
+	//
+	// The returned writer should implement "Flush() error" function that flushes
+	// any pending compressed data to the underlying writer.
+	Writer(w io.Writer) (WriteFlushCloser, error)
 
 	// WriteTOCAndFooter is called to write JTOC to the passed Writer.
 	// diffHash calculates the DiffID (uncompressed sha256 hash) of the blob
@@ -303,8 +315,12 @@ type Decompressor interface {
 	// payloadBlobSize is the (compressed) size of the blob payload (i.e. the size between
 	// the top until the TOC JSON).
 	//
-	// Here, tocSize is optional. If tocSize <= 0, it's by default the size of the range
-	// from tocOffset until the beginning of the footer (blob size - tocOff - FooterSize).
+	// If tocOffset < 0, we assume that TOC isn't contained in the blob and pass nil reader
+	// to ParseTOC. We expect that ParseTOC acquire TOC from the external location and return it.
+	//
+	// tocSize is optional. If tocSize <= 0, it's by default the size of the range from tocOffset until the beginning of the
+	// footer (blob size - tocOff - FooterSize).
+	// If blobPayloadSize < 0, blobPayloadSize become the blob size.
 	ParseFooter(p []byte) (blobPayloadSize, tocOffset, tocSize int64, err error)
 
 	// ParseTOC parses TOC from the passed reader. The reader provides the partial contents
@@ -313,5 +329,14 @@ type Decompressor interface {
 	// This function returns tocDgst that represents the digest of TOC that will be used
 	// to verify this blob. This must match to the value returned from
 	// Compressor.WriteTOCAndFooter that is used when creating this blob.
+	//
+	// If tocOffset returned by ParseFooter is < 0, we assume that TOC isn't contained in the blob.
+	// Pass nil reader to ParseTOC then we expect that ParseTOC acquire TOC from the external location
+	// and return it.
 	ParseTOC(r io.Reader) (toc *JTOC, tocDgst digest.Digest, err error)
 }
+
+type WriteFlushCloser interface {
+	io.WriteCloser
+	Flush() error
+}