commit 6623dd735260aa83418548ce9d18382f3d2d1cb4 Author: Darren Shepherd Date: Wed Oct 11 22:48:07 2017 -0700 Initial Commit diff --git a/.dockerignore b/.dockerignore new file mode 100644 index 00000000..6e43c2a9 --- /dev/null +++ b/.dockerignore @@ -0,0 +1,4 @@ +./bin +./.dapper +./dist +./.trash-cache diff --git a/.drone.yml b/.drone.yml new file mode 100644 index 00000000..8f5c37cd --- /dev/null +++ b/.drone.yml @@ -0,0 +1,9 @@ +--- +pipeline: + build: + privileged: true + image: rancher/dapper:1.11.2 + volumes: + - /var/run/docker.sock:/var/run/docker.sock + commands: + - dapper ci diff --git a/.gitignore b/.gitignore new file mode 100644 index 00000000..81d1b990 --- /dev/null +++ b/.gitignore @@ -0,0 +1,5 @@ +/.dapper +/bin +/dist +*.swp +/.trash-cache diff --git a/Dockerfile.dapper b/Dockerfile.dapper new file mode 100644 index 00000000..1e932df3 --- /dev/null +++ b/Dockerfile.dapper @@ -0,0 +1,31 @@ +FROM ubuntu:16.04 +# FROM arm=armhf/ubuntu:16.04 + +ARG DAPPER_HOST_ARCH +ENV HOST_ARCH=${DAPPER_HOST_ARCH} ARCH=${DAPPER_HOST_ARCH} + +RUN apt-get update && \ + apt-get install -y gcc ca-certificates git wget curl vim less file && \ + rm -f /bin/sh && ln -s /bin/bash /bin/sh + +ENV GOLANG_ARCH_amd64=amd64 GOLANG_ARCH_arm=armv6l GOLANG_ARCH=GOLANG_ARCH_${ARCH} \ + GOPATH=/go PATH=/go/bin:/usr/local/go/bin:${PATH} SHELL=/bin/bash + +RUN wget -O - https://storage.googleapis.com/golang/go1.8.3.linux-${!GOLANG_ARCH}.tar.gz | tar -xzf - -C /usr/local && \ + go get github.com/rancher/trash && go get github.com/golang/lint/golint + +ENV DOCKER_URL_amd64=https://get.docker.com/builds/Linux/x86_64/docker-1.10.3 \ + DOCKER_URL_arm=https://github.com/rancher/docker/releases/download/v1.10.3-ros1/docker-1.10.3_arm \ + DOCKER_URL=DOCKER_URL_${ARCH} + +RUN wget -O - ${!DOCKER_URL} > /usr/bin/docker && chmod +x /usr/bin/docker + +ENV DAPPER_SOURCE /go/src/github.com/rancher/norman/ +ENV DAPPER_OUTPUT ./bin ./dist +ENV DAPPER_DOCKER_SOCKET true +ENV TRASH_CACHE ${DAPPER_SOURCE}/.trash-cache +ENV HOME ${DAPPER_SOURCE} +WORKDIR ${DAPPER_SOURCE} + +ENTRYPOINT ["./scripts/entry"] +CMD ["ci"] diff --git a/LICENSE b/LICENSE new file mode 100644 index 00000000..f433b1a5 --- /dev/null +++ b/LICENSE @@ -0,0 +1,177 @@ + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. For the purposes of this definition, + "control" means (i) the power, direct or indirect, to cause the + direction or management of such entity, whether by contract or + otherwise, or (ii) ownership of fifty percent (50%) or more of the + outstanding shares, or (iii) beneficial ownership of such entity. + + "You" (or "Your") shall mean an individual or Legal Entity + exercising permissions granted by this License. + + "Source" form shall mean the preferred form for making modifications, + including but not limited to software source code, documentation + source, and configuration files. + + "Object" form shall mean any form resulting from mechanical + transformation or translation of a Source form, including but + not limited to compiled object code, generated documentation, + and conversions to other media types. + + "Work" shall mean the work of authorship, whether in Source or + Object form, made available under the License, as indicated by a + copyright notice that is included in or attached to the work + (an example is provided in the Appendix below). + + "Derivative Works" shall mean any work, whether in Source or Object + form, that is based on (or derived from) the Work and for which the + editorial revisions, annotations, elaborations, or other modifications + represent, as a whole, an original work of authorship. For the purposes + of this License, Derivative Works shall not include works that remain + separable from, or merely link (or bind by name) to the interfaces of, + the Work and Derivative Works thereof. + + "Contribution" shall mean any work of authorship, including + the original version of the Work and any modifications or additions + to that Work or Derivative Works thereof, that is intentionally + submitted to Licensor for inclusion in the Work by the copyright owner + or by an individual or Legal Entity authorized to submit on behalf of + the copyright owner. For the purposes of this definition, "submitted" + means any form of electronic, verbal, or written communication sent + to the Licensor or its representatives, including but not limited to + communication on electronic mailing lists, source code control systems, + and issue tracking systems that are managed by, or on behalf of, the + Licensor for the purpose of discussing and improving the Work, but + excluding communication that is conspicuously marked or otherwise + designated in writing by the copyright owner as "Not a Contribution." + + "Contributor" shall mean Licensor and any individual or Legal Entity + on behalf of whom a Contribution has been received by Licensor and + subsequently incorporated within the Work. + + 2. Grant of Copyright License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + copyright license to reproduce, prepare Derivative Works of, + publicly display, publicly perform, sublicense, and distribute the + Work and such Derivative Works in Source or Object form. + + 3. Grant of Patent License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + (except as stated in this section) patent license to make, have made, + use, offer to sell, sell, import, and otherwise transfer the Work, + where such license applies only to those patent claims licensable + by such Contributor that are necessarily infringed by their + Contribution(s) alone or by combination of their Contribution(s) + with the Work to which such Contribution(s) was submitted. If You + institute patent litigation against any entity (including a + cross-claim or counterclaim in a lawsuit) alleging that the Work + or a Contribution incorporated within the Work constitutes direct + or contributory patent infringement, then any patent licenses + granted to You under this License for that Work shall terminate + as of the date such litigation is filed. + + 4. Redistribution. You may reproduce and distribute copies of the + Work or Derivative Works thereof in any medium, with or without + modifications, and in Source or Object form, provided that You + meet the following conditions: + + (a) You must give any other recipients of the Work or + Derivative Works a copy of this License; and + + (b) You must cause any modified files to carry prominent notices + stating that You changed the files; and + + (c) You must retain, in the Source form of any Derivative Works + that You distribute, all copyright, patent, trademark, and + attribution notices from the Source form of the Work, + excluding those notices that do not pertain to any part of + the Derivative Works; and + + (d) If the Work includes a "NOTICE" text file as part of its + distribution, then any Derivative Works that You distribute must + include a readable copy of the attribution notices contained + within such NOTICE file, excluding those notices that do not + pertain to any part of the Derivative Works, in at least one + of the following places: within a NOTICE text file distributed + as part of the Derivative Works; within the Source form or + documentation, if provided along with the Derivative Works; or, + within a display generated by the Derivative Works, if and + wherever such third-party notices normally appear. The contents + of the NOTICE file are for informational purposes only and + do not modify the License. You may add Your own attribution + notices within Derivative Works that You distribute, alongside + or as an addendum to the NOTICE text from the Work, provided + that such additional attribution notices cannot be construed + as modifying the License. + + You may add Your own copyright statement to Your modifications and + may provide additional or different license terms and conditions + for use, reproduction, or distribution of Your modifications, or + for any such Derivative Works as a whole, provided Your use, + reproduction, and distribution of the Work otherwise complies with + the conditions stated in this License. + + 5. Submission of Contributions. Unless You explicitly state otherwise, + any Contribution intentionally submitted for inclusion in the Work + by You to the Licensor shall be under the terms and conditions of + this License, without any additional terms or conditions. + Notwithstanding the above, nothing herein shall supersede or modify + the terms of any separate license agreement you may have executed + with Licensor regarding such Contributions. + + 6. Trademarks. This License does not grant permission to use the trade + names, trademarks, service marks, or product names of the Licensor, + except as required for reasonable and customary use in describing the + origin of the Work and reproducing the content of the NOTICE file. + + 7. Disclaimer of Warranty. Unless required by applicable law or + agreed to in writing, Licensor provides the Work (and each + Contributor provides its Contributions) on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + implied, including, without limitation, any warranties or conditions + of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A + PARTICULAR PURPOSE. You are solely responsible for determining the + appropriateness of using or redistributing the Work and assume any + risks associated with Your exercise of permissions under this License. + + 8. Limitation of Liability. In no event and under no legal theory, + whether in tort (including negligence), contract, or otherwise, + unless required by applicable law (such as deliberate and grossly + negligent acts) or agreed to in writing, shall any Contributor be + liable to You for damages, including any direct, indirect, special, + incidental, or consequential damages of any character arising as a + result of this License or out of the use or inability to use the + Work (including but not limited to damages for loss of goodwill, + work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses), even if such Contributor + has been advised of the possibility of such damages. + + 9. Accepting Warranty or Additional Liability. While redistributing + the Work or Derivative Works thereof, You may choose to offer, + and charge a fee for, acceptance of support, warranty, indemnity, + or other liability obligations and/or rights consistent with this + License. However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + + END OF TERMS AND CONDITIONS diff --git a/Makefile b/Makefile new file mode 100644 index 00000000..d7d72a16 --- /dev/null +++ b/Makefile @@ -0,0 +1,23 @@ +TARGETS := $(shell ls scripts) + +.dapper: + @echo Downloading dapper + @curl -sL https://releases.rancher.com/dapper/latest/dapper-`uname -s`-`uname -m` > .dapper.tmp + @@chmod +x .dapper.tmp + @./.dapper.tmp -v + @mv .dapper.tmp .dapper + +$(TARGETS): .dapper + ./.dapper $@ + +trash: .dapper + ./.dapper -m bind trash + +trash-keep: .dapper + ./.dapper -m bind trash -k + +deps: trash + +.DEFAULT_GOAL := ci + +.PHONY: $(TARGETS) diff --git a/README.md b/README.md new file mode 100644 index 00000000..b5579bb8 --- /dev/null +++ b/README.md @@ -0,0 +1,28 @@ +norman +======== + +A microservice that does micro things. + +## Building + +`make` + + +## Running + +`./bin/norman` + +## License +Copyright (c) 2014-2016 [Rancher Labs, Inc.](http://rancher.com) + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + +[http://www.apache.org/licenses/LICENSE-2.0](http://www.apache.org/licenses/LICENSE-2.0) + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. diff --git a/main.go b/main.go new file mode 100644 index 00000000..adab4a91 --- /dev/null +++ b/main.go @@ -0,0 +1,23 @@ +package main + +import ( + "os" + + "github.com/Sirupsen/logrus" + "github.com/urfave/cli" +) + +var VERSION = "v0.0.0-dev" + +func main() { + app := cli.NewApp() + app.Name = "norman" + app.Version = VERSION + app.Usage = "You need help!" + app.Action = func(c *cli.Context) error { + logrus.Info("I'm a turkey") + return nil + } + + app.Run(os.Args) +} diff --git a/package/Dockerfile b/package/Dockerfile new file mode 100644 index 00000000..5986df0a --- /dev/null +++ b/package/Dockerfile @@ -0,0 +1,3 @@ +FROM ubuntu:16.04 +COPY norman /usr/bin/ +CMD ["norman"] diff --git a/scripts/build b/scripts/build new file mode 100755 index 00000000..105153b0 --- /dev/null +++ b/scripts/build @@ -0,0 +1,10 @@ +#!/bin/bash +set -e + +source $(dirname $0)/version + +cd $(dirname $0)/.. + +mkdir -p bin +[ "$(uname)" != "Darwin" ] && LINKFLAGS="-linkmode external -extldflags -static -s" +CGO_ENABLED=0 go build -ldflags "-X main.VERSION=$VERSION $LINKFLAGS" -o bin/norman diff --git a/scripts/ci b/scripts/ci new file mode 100755 index 00000000..e6fae796 --- /dev/null +++ b/scripts/ci @@ -0,0 +1,9 @@ +#!/bin/bash +set -e + +cd $(dirname $0) + +./build +./test +./validate +./package diff --git a/scripts/entry b/scripts/entry new file mode 100755 index 00000000..78fb5679 --- /dev/null +++ b/scripts/entry @@ -0,0 +1,11 @@ +#!/bin/bash +set -e + +mkdir -p bin dist +if [ -e ./scripts/$1 ]; then + ./scripts/"$@" +else + exec "$@" +fi + +chown -R $DAPPER_UID:$DAPPER_GID . diff --git a/scripts/package b/scripts/package new file mode 100755 index 00000000..5370ca7f --- /dev/null +++ b/scripts/package @@ -0,0 +1,24 @@ +#!/bin/bash +set -e + +source $(dirname $0)/version + +ARCH=${ARCH:-"amd64"} +SUFFIX="" +[ "${ARCH}" != "amd64" ] && SUFFIX="_${ARCH}" + +cd $(dirname $0)/../package + +TAG=${TAG:-${VERSION}${SUFFIX}} +REPO=${REPO:-rancher} + +if echo $TAG | grep -q dirty; then + TAG=dev +fi + +cp ../bin/norman . + +IMAGE=${REPO}/norman:${TAG} +docker build -t ${IMAGE} . +echo ${IMAGE} > ../dist/images +echo Built ${IMAGE} diff --git a/scripts/release b/scripts/release new file mode 100755 index 00000000..7af0df35 --- /dev/null +++ b/scripts/release @@ -0,0 +1,3 @@ +#!/bin/bash + +exec $(dirname $0)/ci diff --git a/scripts/test b/scripts/test new file mode 100755 index 00000000..78d0797a --- /dev/null +++ b/scripts/test @@ -0,0 +1,11 @@ +#!/bin/bash +set -e + +cd $(dirname $0)/.. + +echo Running tests + +PACKAGES=". $(find -name '*.go' | xargs -I{} dirname {} | cut -f2 -d/ | sort -u | grep -Ev '(^\.$|.git|.trash-cache|vendor|bin)' | sed -e 's!^!./!' -e 's!$!/...!')" + +[ "${ARCH}" == "amd64" ] && RACE=-race +go test ${RACE} -cover -tags=test ${PACKAGES} diff --git a/scripts/validate b/scripts/validate new file mode 100755 index 00000000..17f8372e --- /dev/null +++ b/scripts/validate @@ -0,0 +1,20 @@ +#!/bin/bash +set -e + +cd $(dirname $0)/.. + +echo Running validation + +PACKAGES=". $(find -name '*.go' | xargs -I{} dirname {} | cut -f2 -d/ | sort -u | grep -Ev '(^\.$|.git|.trash-cache|vendor|bin)' | sed -e 's!^!./!' -e 's!$!/...!')" + +echo Running: go vet +go vet ${PACKAGES} +echo Running: golint +for i in ${PACKAGES}; do + if [ -n "$(golint $i | grep -v 'should have comment.*or be unexported' | tee /dev/stderr)" ]; then + failed=true + fi +done +test -z "$failed" +echo Running: go fmt +test -z "$(go fmt ${PACKAGES} | tee /dev/stderr)" diff --git a/scripts/version b/scripts/version new file mode 100755 index 00000000..c52f0f7e --- /dev/null +++ b/scripts/version @@ -0,0 +1,18 @@ +#!/bin/bash + +if [ -n "$(git status --porcelain --untracked-files=no)" ]; then + DIRTY="-dirty" +fi + +COMMIT=$(git rev-parse --short HEAD) +GIT_TAG=$(git tag -l --contains HEAD | head -n 1) + +if [[ -z "$DIRTY" && -n "$GIT_TAG" ]]; then + VERSION=$GIT_TAG +else + VERSION="${COMMIT}${DIRTY}" +fi + +if [ -z "$ARCH" ]; then + ARCH=amd64 +fi diff --git a/vendor.conf b/vendor.conf new file mode 100644 index 00000000..9e7aff9e --- /dev/null +++ b/vendor.conf @@ -0,0 +1,5 @@ +# package +github.com/rancher/norman + +github.com/Sirupsen/logrus v0.10.0 +github.com/urfave/cli v1.18.0 diff --git a/vendor/github.com/Sirupsen/logrus/.gitignore b/vendor/github.com/Sirupsen/logrus/.gitignore new file mode 100644 index 00000000..66be63a0 --- /dev/null +++ b/vendor/github.com/Sirupsen/logrus/.gitignore @@ -0,0 +1 @@ +logrus diff --git a/vendor/github.com/Sirupsen/logrus/.travis.yml b/vendor/github.com/Sirupsen/logrus/.travis.yml new file mode 100644 index 00000000..ff23150d --- /dev/null +++ b/vendor/github.com/Sirupsen/logrus/.travis.yml @@ -0,0 +1,9 @@ +language: go +go: + - 1.3 + - 1.4 + - 1.5 + - tip +install: + - go get -t ./... +script: GOMAXPROCS=4 GORACE="halt_on_error=1" go test -race -v ./... diff --git a/vendor/github.com/Sirupsen/logrus/CHANGELOG.md b/vendor/github.com/Sirupsen/logrus/CHANGELOG.md new file mode 100644 index 00000000..f2c2bc21 --- /dev/null +++ b/vendor/github.com/Sirupsen/logrus/CHANGELOG.md @@ -0,0 +1,66 @@ +# 0.10.0 + +* feature: Add a test hook (#180) +* feature: `ParseLevel` is now case-insensitive (#326) +* feature: `FieldLogger` interface that generalizes `Logger` and `Entry` (#308) +* performance: avoid re-allocations on `WithFields` (#335) + +# 0.9.0 + +* logrus/text_formatter: don't emit empty msg +* logrus/hooks/airbrake: move out of main repository +* logrus/hooks/sentry: move out of main repository +* logrus/hooks/papertrail: move out of main repository +* logrus/hooks/bugsnag: move out of main repository +* logrus/core: run tests with `-race` +* logrus/core: detect TTY based on `stderr` +* logrus/core: support `WithError` on logger +* logrus/core: Solaris support + +# 0.8.7 + +* logrus/core: fix possible race (#216) +* logrus/doc: small typo fixes and doc improvements + + +# 0.8.6 + +* hooks/raven: allow passing an initialized client + +# 0.8.5 + +* logrus/core: revert #208 + +# 0.8.4 + +* formatter/text: fix data race (#218) + +# 0.8.3 + +* logrus/core: fix entry log level (#208) +* logrus/core: improve performance of text formatter by 40% +* logrus/core: expose `LevelHooks` type +* logrus/core: add support for DragonflyBSD and NetBSD +* formatter/text: print structs more verbosely + +# 0.8.2 + +* logrus: fix more Fatal family functions + +# 0.8.1 + +* logrus: fix not exiting on `Fatalf` and `Fatalln` + +# 0.8.0 + +* logrus: defaults to stderr instead of stdout +* hooks/sentry: add special field for `*http.Request` +* formatter/text: ignore Windows for colors + +# 0.7.3 + +* formatter/\*: allow configuration of timestamp layout + +# 0.7.2 + +* formatter/text: Add configuration option for time format (#158) diff --git a/vendor/github.com/Sirupsen/logrus/LICENSE b/vendor/github.com/Sirupsen/logrus/LICENSE new file mode 100644 index 00000000..f090cb42 --- /dev/null +++ b/vendor/github.com/Sirupsen/logrus/LICENSE @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) 2014 Simon Eskildsen + +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. diff --git a/vendor/github.com/Sirupsen/logrus/README.md b/vendor/github.com/Sirupsen/logrus/README.md new file mode 100644 index 00000000..6e1721a7 --- /dev/null +++ b/vendor/github.com/Sirupsen/logrus/README.md @@ -0,0 +1,388 @@ +# Logrus :walrus: [![Build Status](https://travis-ci.org/Sirupsen/logrus.svg?branch=master)](https://travis-ci.org/Sirupsen/logrus) [![GoDoc](https://godoc.org/github.com/Sirupsen/logrus?status.svg)](https://godoc.org/github.com/Sirupsen/logrus) + +Logrus is a structured logger for Go (golang), completely API compatible with +the standard library logger. [Godoc][godoc]. **Please note the Logrus API is not +yet stable (pre 1.0). Logrus itself is completely stable and has been used in +many large deployments. The core API is unlikely to change much but please +version control your Logrus to make sure you aren't fetching latest `master` on +every build.** + +Nicely color-coded in development (when a TTY is attached, otherwise just +plain text): + +![Colored](http://i.imgur.com/PY7qMwd.png) + +With `log.SetFormatter(&log.JSONFormatter{})`, for easy parsing by logstash +or Splunk: + +```json +{"animal":"walrus","level":"info","msg":"A group of walrus emerges from the +ocean","size":10,"time":"2014-03-10 19:57:38.562264131 -0400 EDT"} + +{"level":"warning","msg":"The group's number increased tremendously!", +"number":122,"omg":true,"time":"2014-03-10 19:57:38.562471297 -0400 EDT"} + +{"animal":"walrus","level":"info","msg":"A giant walrus appears!", +"size":10,"time":"2014-03-10 19:57:38.562500591 -0400 EDT"} + +{"animal":"walrus","level":"info","msg":"Tremendously sized cow enters the ocean.", +"size":9,"time":"2014-03-10 19:57:38.562527896 -0400 EDT"} + +{"level":"fatal","msg":"The ice breaks!","number":100,"omg":true, +"time":"2014-03-10 19:57:38.562543128 -0400 EDT"} +``` + +With the default `log.SetFormatter(&log.TextFormatter{})` when a TTY is not +attached, the output is compatible with the +[logfmt](http://godoc.org/github.com/kr/logfmt) format: + +```text +time="2015-03-26T01:27:38-04:00" level=debug msg="Started observing beach" animal=walrus number=8 +time="2015-03-26T01:27:38-04:00" level=info msg="A group of walrus emerges from the ocean" animal=walrus size=10 +time="2015-03-26T01:27:38-04:00" level=warning msg="The group's number increased tremendously!" number=122 omg=true +time="2015-03-26T01:27:38-04:00" level=debug msg="Temperature changes" temperature=-4 +time="2015-03-26T01:27:38-04:00" level=panic msg="It's over 9000!" animal=orca size=9009 +time="2015-03-26T01:27:38-04:00" level=fatal msg="The ice breaks!" err=&{0x2082280c0 map[animal:orca size:9009] 2015-03-26 01:27:38.441574009 -0400 EDT panic It's over 9000!} number=100 omg=true +exit status 1 +``` + +#### Example + +The simplest way to use Logrus is simply the package-level exported logger: + +```go +package main + +import ( + log "github.com/Sirupsen/logrus" +) + +func main() { + log.WithFields(log.Fields{ + "animal": "walrus", + }).Info("A walrus appears") +} +``` + +Note that it's completely api-compatible with the stdlib logger, so you can +replace your `log` imports everywhere with `log "github.com/Sirupsen/logrus"` +and you'll now have the flexibility of Logrus. You can customize it all you +want: + +```go +package main + +import ( + "os" + log "github.com/Sirupsen/logrus" +) + +func init() { + // Log as JSON instead of the default ASCII formatter. + log.SetFormatter(&log.JSONFormatter{}) + + // Output to stderr instead of stdout, could also be a file. + log.SetOutput(os.Stderr) + + // Only log the warning severity or above. + log.SetLevel(log.WarnLevel) +} + +func main() { + log.WithFields(log.Fields{ + "animal": "walrus", + "size": 10, + }).Info("A group of walrus emerges from the ocean") + + log.WithFields(log.Fields{ + "omg": true, + "number": 122, + }).Warn("The group's number increased tremendously!") + + log.WithFields(log.Fields{ + "omg": true, + "number": 100, + }).Fatal("The ice breaks!") + + // A common pattern is to re-use fields between logging statements by re-using + // the logrus.Entry returned from WithFields() + contextLogger := log.WithFields(log.Fields{ + "common": "this is a common field", + "other": "I also should be logged always", + }) + + contextLogger.Info("I'll be logged with common and other field") + contextLogger.Info("Me too") +} +``` + +For more advanced usage such as logging to multiple locations from the same +application, you can also create an instance of the `logrus` Logger: + +```go +package main + +import ( + "github.com/Sirupsen/logrus" +) + +// Create a new instance of the logger. You can have any number of instances. +var log = logrus.New() + +func main() { + // The API for setting attributes is a little different than the package level + // exported logger. See Godoc. + log.Out = os.Stderr + + log.WithFields(logrus.Fields{ + "animal": "walrus", + "size": 10, + }).Info("A group of walrus emerges from the ocean") +} +``` + +#### Fields + +Logrus encourages careful, structured logging though logging fields instead of +long, unparseable error messages. For example, instead of: `log.Fatalf("Failed +to send event %s to topic %s with key %d")`, you should log the much more +discoverable: + +```go +log.WithFields(log.Fields{ + "event": event, + "topic": topic, + "key": key, +}).Fatal("Failed to send event") +``` + +We've found this API forces you to think about logging in a way that produces +much more useful logging messages. We've been in countless situations where just +a single added field to a log statement that was already there would've saved us +hours. The `WithFields` call is optional. + +In general, with Logrus using any of the `printf`-family functions should be +seen as a hint you should add a field, however, you can still use the +`printf`-family functions with Logrus. + +#### Hooks + +You can add hooks for logging levels. For example to send errors to an exception +tracking service on `Error`, `Fatal` and `Panic`, info to StatsD or log to +multiple places simultaneously, e.g. syslog. + +Logrus comes with [built-in hooks](hooks/). Add those, or your custom hook, in +`init`: + +```go +import ( + log "github.com/Sirupsen/logrus" + "gopkg.in/gemnasium/logrus-airbrake-hook.v2" // the package is named "aibrake" + logrus_syslog "github.com/Sirupsen/logrus/hooks/syslog" + "log/syslog" +) + +func init() { + + // Use the Airbrake hook to report errors that have Error severity or above to + // an exception tracker. You can create custom hooks, see the Hooks section. + log.AddHook(airbrake.NewHook(123, "xyz", "production")) + + hook, err := logrus_syslog.NewSyslogHook("udp", "localhost:514", syslog.LOG_INFO, "") + if err != nil { + log.Error("Unable to connect to local syslog daemon") + } else { + log.AddHook(hook) + } +} +``` +Note: Syslog hook also support connecting to local syslog (Ex. "/dev/log" or "/var/run/syslog" or "/var/run/log"). For the detail, please check the [syslog hook README](hooks/syslog/README.md). + +| Hook | Description | +| ----- | ----------- | +| [Airbrake](https://github.com/gemnasium/logrus-airbrake-hook) | Send errors to the Airbrake API V3. Uses the official [`gobrake`](https://github.com/airbrake/gobrake) behind the scenes. | +| [Airbrake "legacy"](https://github.com/gemnasium/logrus-airbrake-legacy-hook) | Send errors to an exception tracking service compatible with the Airbrake API V2. Uses [`airbrake-go`](https://github.com/tobi/airbrake-go) behind the scenes. | +| [Papertrail](https://github.com/polds/logrus-papertrail-hook) | Send errors to the [Papertrail](https://papertrailapp.com) hosted logging service via UDP. | +| [Syslog](https://github.com/Sirupsen/logrus/blob/master/hooks/syslog/syslog.go) | Send errors to remote syslog server. Uses standard library `log/syslog` behind the scenes. | +| [Bugsnag](https://github.com/Shopify/logrus-bugsnag/blob/master/bugsnag.go) | Send errors to the Bugsnag exception tracking service. | +| [Sentry](https://github.com/evalphobia/logrus_sentry) | Send errors to the Sentry error logging and aggregation service. | +| [Hiprus](https://github.com/nubo/hiprus) | Send errors to a channel in hipchat. | +| [Logrusly](https://github.com/sebest/logrusly) | Send logs to [Loggly](https://www.loggly.com/) | +| [Slackrus](https://github.com/johntdyer/slackrus) | Hook for Slack chat. | +| [Journalhook](https://github.com/wercker/journalhook) | Hook for logging to `systemd-journald` | +| [Graylog](https://github.com/gemnasium/logrus-graylog-hook) | Hook for logging to [Graylog](http://graylog2.org/) | +| [Raygun](https://github.com/squirkle/logrus-raygun-hook) | Hook for logging to [Raygun.io](http://raygun.io/) | +| [LFShook](https://github.com/rifflock/lfshook) | Hook for logging to the local filesystem | +| [Honeybadger](https://github.com/agonzalezro/logrus_honeybadger) | Hook for sending exceptions to Honeybadger | +| [Mail](https://github.com/zbindenren/logrus_mail) | Hook for sending exceptions via mail | +| [Rollrus](https://github.com/heroku/rollrus) | Hook for sending errors to rollbar | +| [Fluentd](https://github.com/evalphobia/logrus_fluent) | Hook for logging to fluentd | +| [Mongodb](https://github.com/weekface/mgorus) | Hook for logging to mongodb | +| [InfluxDB](https://github.com/Abramovic/logrus_influxdb) | Hook for logging to influxdb | +| [Octokit](https://github.com/dorajistyle/logrus-octokit-hook) | Hook for logging to github via octokit | +| [DeferPanic](https://github.com/deferpanic/dp-logrus) | Hook for logging to DeferPanic | +| [Redis-Hook](https://github.com/rogierlommers/logrus-redis-hook) | Hook for logging to a ELK stack (through Redis) | +| [Amqp-Hook](https://github.com/vladoatanasov/logrus_amqp) | Hook for logging to Amqp broker (Like RabbitMQ) | +| [KafkaLogrus](https://github.com/goibibo/KafkaLogrus) | Hook for logging to kafka | +| [Typetalk](https://github.com/dragon3/logrus-typetalk-hook) | Hook for logging to [Typetalk](https://www.typetalk.in/) | +| [ElasticSearch](https://github.com/sohlich/elogrus) | Hook for logging to ElasticSearch| + + +#### Level logging + +Logrus has six logging levels: Debug, Info, Warning, Error, Fatal and Panic. + +```go +log.Debug("Useful debugging information.") +log.Info("Something noteworthy happened!") +log.Warn("You should probably take a look at this.") +log.Error("Something failed but I'm not quitting.") +// Calls os.Exit(1) after logging +log.Fatal("Bye.") +// Calls panic() after logging +log.Panic("I'm bailing.") +``` + +You can set the logging level on a `Logger`, then it will only log entries with +that severity or anything above it: + +```go +// Will log anything that is info or above (warn, error, fatal, panic). Default. +log.SetLevel(log.InfoLevel) +``` + +It may be useful to set `log.Level = logrus.DebugLevel` in a debug or verbose +environment if your application has that. + +#### Entries + +Besides the fields added with `WithField` or `WithFields` some fields are +automatically added to all logging events: + +1. `time`. The timestamp when the entry was created. +2. `msg`. The logging message passed to `{Info,Warn,Error,Fatal,Panic}` after + the `AddFields` call. E.g. `Failed to send event.` +3. `level`. The logging level. E.g. `info`. + +#### Environments + +Logrus has no notion of environment. + +If you wish for hooks and formatters to only be used in specific environments, +you should handle that yourself. For example, if your application has a global +variable `Environment`, which is a string representation of the environment you +could do: + +```go +import ( + log "github.com/Sirupsen/logrus" +) + +init() { + // do something here to set environment depending on an environment variable + // or command-line flag + if Environment == "production" { + log.SetFormatter(&log.JSONFormatter{}) + } else { + // The TextFormatter is default, you don't actually have to do this. + log.SetFormatter(&log.TextFormatter{}) + } +} +``` + +This configuration is how `logrus` was intended to be used, but JSON in +production is mostly only useful if you do log aggregation with tools like +Splunk or Logstash. + +#### Formatters + +The built-in logging formatters are: + +* `logrus.TextFormatter`. Logs the event in colors if stdout is a tty, otherwise + without colors. + * *Note:* to force colored output when there is no TTY, set the `ForceColors` + field to `true`. To force no colored output even if there is a TTY set the + `DisableColors` field to `true` +* `logrus.JSONFormatter`. Logs fields as JSON. +* `logrus/formatters/logstash.LogstashFormatter`. Logs fields as [Logstash](http://logstash.net) Events. + + ```go + logrus.SetFormatter(&logstash.LogstashFormatter{Type: "application_name"}) + ``` + +Third party logging formatters: + +* [`prefixed`](https://github.com/x-cray/logrus-prefixed-formatter). Displays log entry source along with alternative layout. +* [`zalgo`](https://github.com/aybabtme/logzalgo). Invoking the P͉̫o̳̼̊w̖͈̰͎e̬͔̭͂r͚̼̹̲ ̫͓͉̳͈ō̠͕͖̚f̝͍̠ ͕̲̞͖͑Z̖̫̤̫ͪa͉̬͈̗l͖͎g̳̥o̰̥̅!̣͔̲̻͊̄ ̙̘̦̹̦. + +You can define your formatter by implementing the `Formatter` interface, +requiring a `Format` method. `Format` takes an `*Entry`. `entry.Data` is a +`Fields` type (`map[string]interface{}`) with all your fields as well as the +default ones (see Entries section above): + +```go +type MyJSONFormatter struct { +} + +log.SetFormatter(new(MyJSONFormatter)) + +func (f *MyJSONFormatter) Format(entry *Entry) ([]byte, error) { + // Note this doesn't include Time, Level and Message which are available on + // the Entry. Consult `godoc` on information about those fields or read the + // source of the official loggers. + serialized, err := json.Marshal(entry.Data) + if err != nil { + return nil, fmt.Errorf("Failed to marshal fields to JSON, %v", err) + } + return append(serialized, '\n'), nil +} +``` + +#### Logger as an `io.Writer` + +Logrus can be transformed into an `io.Writer`. That writer is the end of an `io.Pipe` and it is your responsibility to close it. + +```go +w := logger.Writer() +defer w.Close() + +srv := http.Server{ + // create a stdlib log.Logger that writes to + // logrus.Logger. + ErrorLog: log.New(w, "", 0), +} +``` + +Each line written to that writer will be printed the usual way, using formatters +and hooks. The level for those entries is `info`. + +#### Rotation + +Log rotation is not provided with Logrus. Log rotation should be done by an +external program (like `logrotate(8)`) that can compress and delete old log +entries. It should not be a feature of the application-level logger. + +#### Tools + +| Tool | Description | +| ---- | ----------- | +|[Logrus Mate](https://github.com/gogap/logrus_mate)|Logrus mate is a tool for Logrus to manage loggers, you can initial logger's level, hook and formatter by config file, the logger will generated with different config at different environment.| + +#### Testing + +Logrus has a built in facility for asserting the presence of log messages. This is implemented through the `test` hook and provides: + +* decorators for existing logger (`test.NewLocal` and `test.NewGlobal`) which basically just add the `test` hook +* a test logger (`test.NewNullLogger`) that just records log messages (and does not output any): + +```go +logger, hook := NewNullLogger() +logger.Error("Hello error") + +assert.Equal(1, len(hook.Entries)) +assert.Equal(logrus.ErrorLevel, hook.LastEntry().Level) +assert.Equal("Hello error", hook.LastEntry().Message) + +hook.Reset() +assert.Nil(hook.LastEntry()) +``` diff --git a/vendor/github.com/Sirupsen/logrus/doc.go b/vendor/github.com/Sirupsen/logrus/doc.go new file mode 100644 index 00000000..dddd5f87 --- /dev/null +++ b/vendor/github.com/Sirupsen/logrus/doc.go @@ -0,0 +1,26 @@ +/* +Package logrus is a structured logger for Go, completely API compatible with the standard library logger. + + +The simplest way to use Logrus is simply the package-level exported logger: + + package main + + import ( + log "github.com/Sirupsen/logrus" + ) + + func main() { + log.WithFields(log.Fields{ + "animal": "walrus", + "number": 1, + "size": 10, + }).Info("A walrus appears") + } + +Output: + time="2015-09-07T08:48:33Z" level=info msg="A walrus appears" animal=walrus number=1 size=10 + +For a full guide visit https://github.com/Sirupsen/logrus +*/ +package logrus diff --git a/vendor/github.com/Sirupsen/logrus/entry.go b/vendor/github.com/Sirupsen/logrus/entry.go new file mode 100644 index 00000000..89e966e7 --- /dev/null +++ b/vendor/github.com/Sirupsen/logrus/entry.go @@ -0,0 +1,264 @@ +package logrus + +import ( + "bytes" + "fmt" + "io" + "os" + "time" +) + +// Defines the key when adding errors using WithError. +var ErrorKey = "error" + +// An entry is the final or intermediate Logrus logging entry. It contains all +// the fields passed with WithField{,s}. It's finally logged when Debug, Info, +// Warn, Error, Fatal or Panic is called on it. These objects can be reused and +// passed around as much as you wish to avoid field duplication. +type Entry struct { + Logger *Logger + + // Contains all the fields set by the user. + Data Fields + + // Time at which the log entry was created + Time time.Time + + // Level the log entry was logged at: Debug, Info, Warn, Error, Fatal or Panic + Level Level + + // Message passed to Debug, Info, Warn, Error, Fatal or Panic + Message string +} + +func NewEntry(logger *Logger) *Entry { + return &Entry{ + Logger: logger, + // Default is three fields, give a little extra room + Data: make(Fields, 5), + } +} + +// Returns a reader for the entry, which is a proxy to the formatter. +func (entry *Entry) Reader() (*bytes.Buffer, error) { + serialized, err := entry.Logger.Formatter.Format(entry) + return bytes.NewBuffer(serialized), err +} + +// Returns the string representation from the reader and ultimately the +// formatter. +func (entry *Entry) String() (string, error) { + reader, err := entry.Reader() + if err != nil { + return "", err + } + + return reader.String(), err +} + +// Add an error as single field (using the key defined in ErrorKey) to the Entry. +func (entry *Entry) WithError(err error) *Entry { + return entry.WithField(ErrorKey, err) +} + +// Add a single field to the Entry. +func (entry *Entry) WithField(key string, value interface{}) *Entry { + return entry.WithFields(Fields{key: value}) +} + +// Add a map of fields to the Entry. +func (entry *Entry) WithFields(fields Fields) *Entry { + data := make(Fields, len(entry.Data)+len(fields)) + for k, v := range entry.Data { + data[k] = v + } + for k, v := range fields { + data[k] = v + } + return &Entry{Logger: entry.Logger, Data: data} +} + +// This function is not declared with a pointer value because otherwise +// race conditions will occur when using multiple goroutines +func (entry Entry) log(level Level, msg string) { + entry.Time = time.Now() + entry.Level = level + entry.Message = msg + + if err := entry.Logger.Hooks.Fire(level, &entry); err != nil { + entry.Logger.mu.Lock() + fmt.Fprintf(os.Stderr, "Failed to fire hook: %v\n", err) + entry.Logger.mu.Unlock() + } + + reader, err := entry.Reader() + if err != nil { + entry.Logger.mu.Lock() + fmt.Fprintf(os.Stderr, "Failed to obtain reader, %v\n", err) + entry.Logger.mu.Unlock() + } + + entry.Logger.mu.Lock() + defer entry.Logger.mu.Unlock() + + _, err = io.Copy(entry.Logger.Out, reader) + if err != nil { + fmt.Fprintf(os.Stderr, "Failed to write to log, %v\n", err) + } + + // To avoid Entry#log() returning a value that only would make sense for + // panic() to use in Entry#Panic(), we avoid the allocation by checking + // directly here. + if level <= PanicLevel { + panic(&entry) + } +} + +func (entry *Entry) Debug(args ...interface{}) { + if entry.Logger.Level >= DebugLevel { + entry.log(DebugLevel, fmt.Sprint(args...)) + } +} + +func (entry *Entry) Print(args ...interface{}) { + entry.Info(args...) +} + +func (entry *Entry) Info(args ...interface{}) { + if entry.Logger.Level >= InfoLevel { + entry.log(InfoLevel, fmt.Sprint(args...)) + } +} + +func (entry *Entry) Warn(args ...interface{}) { + if entry.Logger.Level >= WarnLevel { + entry.log(WarnLevel, fmt.Sprint(args...)) + } +} + +func (entry *Entry) Warning(args ...interface{}) { + entry.Warn(args...) +} + +func (entry *Entry) Error(args ...interface{}) { + if entry.Logger.Level >= ErrorLevel { + entry.log(ErrorLevel, fmt.Sprint(args...)) + } +} + +func (entry *Entry) Fatal(args ...interface{}) { + if entry.Logger.Level >= FatalLevel { + entry.log(FatalLevel, fmt.Sprint(args...)) + } + os.Exit(1) +} + +func (entry *Entry) Panic(args ...interface{}) { + if entry.Logger.Level >= PanicLevel { + entry.log(PanicLevel, fmt.Sprint(args...)) + } + panic(fmt.Sprint(args...)) +} + +// Entry Printf family functions + +func (entry *Entry) Debugf(format string, args ...interface{}) { + if entry.Logger.Level >= DebugLevel { + entry.Debug(fmt.Sprintf(format, args...)) + } +} + +func (entry *Entry) Infof(format string, args ...interface{}) { + if entry.Logger.Level >= InfoLevel { + entry.Info(fmt.Sprintf(format, args...)) + } +} + +func (entry *Entry) Printf(format string, args ...interface{}) { + entry.Infof(format, args...) +} + +func (entry *Entry) Warnf(format string, args ...interface{}) { + if entry.Logger.Level >= WarnLevel { + entry.Warn(fmt.Sprintf(format, args...)) + } +} + +func (entry *Entry) Warningf(format string, args ...interface{}) { + entry.Warnf(format, args...) +} + +func (entry *Entry) Errorf(format string, args ...interface{}) { + if entry.Logger.Level >= ErrorLevel { + entry.Error(fmt.Sprintf(format, args...)) + } +} + +func (entry *Entry) Fatalf(format string, args ...interface{}) { + if entry.Logger.Level >= FatalLevel { + entry.Fatal(fmt.Sprintf(format, args...)) + } + os.Exit(1) +} + +func (entry *Entry) Panicf(format string, args ...interface{}) { + if entry.Logger.Level >= PanicLevel { + entry.Panic(fmt.Sprintf(format, args...)) + } +} + +// Entry Println family functions + +func (entry *Entry) Debugln(args ...interface{}) { + if entry.Logger.Level >= DebugLevel { + entry.Debug(entry.sprintlnn(args...)) + } +} + +func (entry *Entry) Infoln(args ...interface{}) { + if entry.Logger.Level >= InfoLevel { + entry.Info(entry.sprintlnn(args...)) + } +} + +func (entry *Entry) Println(args ...interface{}) { + entry.Infoln(args...) +} + +func (entry *Entry) Warnln(args ...interface{}) { + if entry.Logger.Level >= WarnLevel { + entry.Warn(entry.sprintlnn(args...)) + } +} + +func (entry *Entry) Warningln(args ...interface{}) { + entry.Warnln(args...) +} + +func (entry *Entry) Errorln(args ...interface{}) { + if entry.Logger.Level >= ErrorLevel { + entry.Error(entry.sprintlnn(args...)) + } +} + +func (entry *Entry) Fatalln(args ...interface{}) { + if entry.Logger.Level >= FatalLevel { + entry.Fatal(entry.sprintlnn(args...)) + } + os.Exit(1) +} + +func (entry *Entry) Panicln(args ...interface{}) { + if entry.Logger.Level >= PanicLevel { + entry.Panic(entry.sprintlnn(args...)) + } +} + +// Sprintlnn => Sprint no newline. This is to get the behavior of how +// fmt.Sprintln where spaces are always added between operands, regardless of +// their type. Instead of vendoring the Sprintln implementation to spare a +// string allocation, we do the simplest thing. +func (entry *Entry) sprintlnn(args ...interface{}) string { + msg := fmt.Sprintln(args...) + return msg[:len(msg)-1] +} diff --git a/vendor/github.com/Sirupsen/logrus/exported.go b/vendor/github.com/Sirupsen/logrus/exported.go new file mode 100644 index 00000000..9a0120ac --- /dev/null +++ b/vendor/github.com/Sirupsen/logrus/exported.go @@ -0,0 +1,193 @@ +package logrus + +import ( + "io" +) + +var ( + // std is the name of the standard logger in stdlib `log` + std = New() +) + +func StandardLogger() *Logger { + return std +} + +// SetOutput sets the standard logger output. +func SetOutput(out io.Writer) { + std.mu.Lock() + defer std.mu.Unlock() + std.Out = out +} + +// SetFormatter sets the standard logger formatter. +func SetFormatter(formatter Formatter) { + std.mu.Lock() + defer std.mu.Unlock() + std.Formatter = formatter +} + +// SetLevel sets the standard logger level. +func SetLevel(level Level) { + std.mu.Lock() + defer std.mu.Unlock() + std.Level = level +} + +// GetLevel returns the standard logger level. +func GetLevel() Level { + std.mu.Lock() + defer std.mu.Unlock() + return std.Level +} + +// AddHook adds a hook to the standard logger hooks. +func AddHook(hook Hook) { + std.mu.Lock() + defer std.mu.Unlock() + std.Hooks.Add(hook) +} + +// WithError creates an entry from the standard logger and adds an error to it, using the value defined in ErrorKey as key. +func WithError(err error) *Entry { + return std.WithField(ErrorKey, err) +} + +// WithField creates an entry from the standard logger and adds a field to +// it. If you want multiple fields, use `WithFields`. +// +// Note that it doesn't log until you call Debug, Print, Info, Warn, Fatal +// or Panic on the Entry it returns. +func WithField(key string, value interface{}) *Entry { + return std.WithField(key, value) +} + +// WithFields creates an entry from the standard logger and adds multiple +// fields to it. This is simply a helper for `WithField`, invoking it +// once for each field. +// +// Note that it doesn't log until you call Debug, Print, Info, Warn, Fatal +// or Panic on the Entry it returns. +func WithFields(fields Fields) *Entry { + return std.WithFields(fields) +} + +// Debug logs a message at level Debug on the standard logger. +func Debug(args ...interface{}) { + std.Debug(args...) +} + +// Print logs a message at level Info on the standard logger. +func Print(args ...interface{}) { + std.Print(args...) +} + +// Info logs a message at level Info on the standard logger. +func Info(args ...interface{}) { + std.Info(args...) +} + +// Warn logs a message at level Warn on the standard logger. +func Warn(args ...interface{}) { + std.Warn(args...) +} + +// Warning logs a message at level Warn on the standard logger. +func Warning(args ...interface{}) { + std.Warning(args...) +} + +// Error logs a message at level Error on the standard logger. +func Error(args ...interface{}) { + std.Error(args...) +} + +// Panic logs a message at level Panic on the standard logger. +func Panic(args ...interface{}) { + std.Panic(args...) +} + +// Fatal logs a message at level Fatal on the standard logger. +func Fatal(args ...interface{}) { + std.Fatal(args...) +} + +// Debugf logs a message at level Debug on the standard logger. +func Debugf(format string, args ...interface{}) { + std.Debugf(format, args...) +} + +// Printf logs a message at level Info on the standard logger. +func Printf(format string, args ...interface{}) { + std.Printf(format, args...) +} + +// Infof logs a message at level Info on the standard logger. +func Infof(format string, args ...interface{}) { + std.Infof(format, args...) +} + +// Warnf logs a message at level Warn on the standard logger. +func Warnf(format string, args ...interface{}) { + std.Warnf(format, args...) +} + +// Warningf logs a message at level Warn on the standard logger. +func Warningf(format string, args ...interface{}) { + std.Warningf(format, args...) +} + +// Errorf logs a message at level Error on the standard logger. +func Errorf(format string, args ...interface{}) { + std.Errorf(format, args...) +} + +// Panicf logs a message at level Panic on the standard logger. +func Panicf(format string, args ...interface{}) { + std.Panicf(format, args...) +} + +// Fatalf logs a message at level Fatal on the standard logger. +func Fatalf(format string, args ...interface{}) { + std.Fatalf(format, args...) +} + +// Debugln logs a message at level Debug on the standard logger. +func Debugln(args ...interface{}) { + std.Debugln(args...) +} + +// Println logs a message at level Info on the standard logger. +func Println(args ...interface{}) { + std.Println(args...) +} + +// Infoln logs a message at level Info on the standard logger. +func Infoln(args ...interface{}) { + std.Infoln(args...) +} + +// Warnln logs a message at level Warn on the standard logger. +func Warnln(args ...interface{}) { + std.Warnln(args...) +} + +// Warningln logs a message at level Warn on the standard logger. +func Warningln(args ...interface{}) { + std.Warningln(args...) +} + +// Errorln logs a message at level Error on the standard logger. +func Errorln(args ...interface{}) { + std.Errorln(args...) +} + +// Panicln logs a message at level Panic on the standard logger. +func Panicln(args ...interface{}) { + std.Panicln(args...) +} + +// Fatalln logs a message at level Fatal on the standard logger. +func Fatalln(args ...interface{}) { + std.Fatalln(args...) +} diff --git a/vendor/github.com/Sirupsen/logrus/formatter.go b/vendor/github.com/Sirupsen/logrus/formatter.go new file mode 100644 index 00000000..104d689f --- /dev/null +++ b/vendor/github.com/Sirupsen/logrus/formatter.go @@ -0,0 +1,48 @@ +package logrus + +import "time" + +const DefaultTimestampFormat = time.RFC3339 + +// The Formatter interface is used to implement a custom Formatter. It takes an +// `Entry`. It exposes all the fields, including the default ones: +// +// * `entry.Data["msg"]`. The message passed from Info, Warn, Error .. +// * `entry.Data["time"]`. The timestamp. +// * `entry.Data["level"]. The level the entry was logged at. +// +// Any additional fields added with `WithField` or `WithFields` are also in +// `entry.Data`. Format is expected to return an array of bytes which are then +// logged to `logger.Out`. +type Formatter interface { + Format(*Entry) ([]byte, error) +} + +// This is to not silently overwrite `time`, `msg` and `level` fields when +// dumping it. If this code wasn't there doing: +// +// logrus.WithField("level", 1).Info("hello") +// +// Would just silently drop the user provided level. Instead with this code +// it'll logged as: +// +// {"level": "info", "fields.level": 1, "msg": "hello", "time": "..."} +// +// It's not exported because it's still using Data in an opinionated way. It's to +// avoid code duplication between the two default formatters. +func prefixFieldClashes(data Fields) { + _, ok := data["time"] + if ok { + data["fields.time"] = data["time"] + } + + _, ok = data["msg"] + if ok { + data["fields.msg"] = data["msg"] + } + + _, ok = data["level"] + if ok { + data["fields.level"] = data["level"] + } +} diff --git a/vendor/github.com/Sirupsen/logrus/hooks.go b/vendor/github.com/Sirupsen/logrus/hooks.go new file mode 100644 index 00000000..3f151cdc --- /dev/null +++ b/vendor/github.com/Sirupsen/logrus/hooks.go @@ -0,0 +1,34 @@ +package logrus + +// A hook to be fired when logging on the logging levels returned from +// `Levels()` on your implementation of the interface. Note that this is not +// fired in a goroutine or a channel with workers, you should handle such +// functionality yourself if your call is non-blocking and you don't wish for +// the logging calls for levels returned from `Levels()` to block. +type Hook interface { + Levels() []Level + Fire(*Entry) error +} + +// Internal type for storing the hooks on a logger instance. +type LevelHooks map[Level][]Hook + +// Add a hook to an instance of logger. This is called with +// `log.Hooks.Add(new(MyHook))` where `MyHook` implements the `Hook` interface. +func (hooks LevelHooks) Add(hook Hook) { + for _, level := range hook.Levels() { + hooks[level] = append(hooks[level], hook) + } +} + +// Fire all the hooks for the passed level. Used by `entry.log` to fire +// appropriate hooks for a log entry. +func (hooks LevelHooks) Fire(level Level, entry *Entry) error { + for _, hook := range hooks[level] { + if err := hook.Fire(entry); err != nil { + return err + } + } + + return nil +} diff --git a/vendor/github.com/Sirupsen/logrus/json_formatter.go b/vendor/github.com/Sirupsen/logrus/json_formatter.go new file mode 100644 index 00000000..2ad6dc5c --- /dev/null +++ b/vendor/github.com/Sirupsen/logrus/json_formatter.go @@ -0,0 +1,41 @@ +package logrus + +import ( + "encoding/json" + "fmt" +) + +type JSONFormatter struct { + // TimestampFormat sets the format used for marshaling timestamps. + TimestampFormat string +} + +func (f *JSONFormatter) Format(entry *Entry) ([]byte, error) { + data := make(Fields, len(entry.Data)+3) + for k, v := range entry.Data { + switch v := v.(type) { + case error: + // Otherwise errors are ignored by `encoding/json` + // https://github.com/Sirupsen/logrus/issues/137 + data[k] = v.Error() + default: + data[k] = v + } + } + prefixFieldClashes(data) + + timestampFormat := f.TimestampFormat + if timestampFormat == "" { + timestampFormat = DefaultTimestampFormat + } + + data["time"] = entry.Time.Format(timestampFormat) + data["msg"] = entry.Message + data["level"] = entry.Level.String() + + serialized, err := json.Marshal(data) + if err != nil { + return nil, fmt.Errorf("Failed to marshal fields to JSON, %v", err) + } + return append(serialized, '\n'), nil +} diff --git a/vendor/github.com/Sirupsen/logrus/logger.go b/vendor/github.com/Sirupsen/logrus/logger.go new file mode 100644 index 00000000..2fdb2317 --- /dev/null +++ b/vendor/github.com/Sirupsen/logrus/logger.go @@ -0,0 +1,212 @@ +package logrus + +import ( + "io" + "os" + "sync" +) + +type Logger struct { + // The logs are `io.Copy`'d to this in a mutex. It's common to set this to a + // file, or leave it default which is `os.Stderr`. You can also set this to + // something more adventorous, such as logging to Kafka. + Out io.Writer + // Hooks for the logger instance. These allow firing events based on logging + // levels and log entries. For example, to send errors to an error tracking + // service, log to StatsD or dump the core on fatal errors. + Hooks LevelHooks + // All log entries pass through the formatter before logged to Out. The + // included formatters are `TextFormatter` and `JSONFormatter` for which + // TextFormatter is the default. In development (when a TTY is attached) it + // logs with colors, but to a file it wouldn't. You can easily implement your + // own that implements the `Formatter` interface, see the `README` or included + // formatters for examples. + Formatter Formatter + // The logging level the logger should log at. This is typically (and defaults + // to) `logrus.Info`, which allows Info(), Warn(), Error() and Fatal() to be + // logged. `logrus.Debug` is useful in + Level Level + // Used to sync writing to the log. + mu sync.Mutex +} + +// Creates a new logger. Configuration should be set by changing `Formatter`, +// `Out` and `Hooks` directly on the default logger instance. You can also just +// instantiate your own: +// +// var log = &Logger{ +// Out: os.Stderr, +// Formatter: new(JSONFormatter), +// Hooks: make(LevelHooks), +// Level: logrus.DebugLevel, +// } +// +// It's recommended to make this a global instance called `log`. +func New() *Logger { + return &Logger{ + Out: os.Stderr, + Formatter: new(TextFormatter), + Hooks: make(LevelHooks), + Level: InfoLevel, + } +} + +// Adds a field to the log entry, note that you it doesn't log until you call +// Debug, Print, Info, Warn, Fatal or Panic. It only creates a log entry. +// If you want multiple fields, use `WithFields`. +func (logger *Logger) WithField(key string, value interface{}) *Entry { + return NewEntry(logger).WithField(key, value) +} + +// Adds a struct of fields to the log entry. All it does is call `WithField` for +// each `Field`. +func (logger *Logger) WithFields(fields Fields) *Entry { + return NewEntry(logger).WithFields(fields) +} + +// Add an error as single field to the log entry. All it does is call +// `WithError` for the given `error`. +func (logger *Logger) WithError(err error) *Entry { + return NewEntry(logger).WithError(err) +} + +func (logger *Logger) Debugf(format string, args ...interface{}) { + if logger.Level >= DebugLevel { + NewEntry(logger).Debugf(format, args...) + } +} + +func (logger *Logger) Infof(format string, args ...interface{}) { + if logger.Level >= InfoLevel { + NewEntry(logger).Infof(format, args...) + } +} + +func (logger *Logger) Printf(format string, args ...interface{}) { + NewEntry(logger).Printf(format, args...) +} + +func (logger *Logger) Warnf(format string, args ...interface{}) { + if logger.Level >= WarnLevel { + NewEntry(logger).Warnf(format, args...) + } +} + +func (logger *Logger) Warningf(format string, args ...interface{}) { + if logger.Level >= WarnLevel { + NewEntry(logger).Warnf(format, args...) + } +} + +func (logger *Logger) Errorf(format string, args ...interface{}) { + if logger.Level >= ErrorLevel { + NewEntry(logger).Errorf(format, args...) + } +} + +func (logger *Logger) Fatalf(format string, args ...interface{}) { + if logger.Level >= FatalLevel { + NewEntry(logger).Fatalf(format, args...) + } + os.Exit(1) +} + +func (logger *Logger) Panicf(format string, args ...interface{}) { + if logger.Level >= PanicLevel { + NewEntry(logger).Panicf(format, args...) + } +} + +func (logger *Logger) Debug(args ...interface{}) { + if logger.Level >= DebugLevel { + NewEntry(logger).Debug(args...) + } +} + +func (logger *Logger) Info(args ...interface{}) { + if logger.Level >= InfoLevel { + NewEntry(logger).Info(args...) + } +} + +func (logger *Logger) Print(args ...interface{}) { + NewEntry(logger).Info(args...) +} + +func (logger *Logger) Warn(args ...interface{}) { + if logger.Level >= WarnLevel { + NewEntry(logger).Warn(args...) + } +} + +func (logger *Logger) Warning(args ...interface{}) { + if logger.Level >= WarnLevel { + NewEntry(logger).Warn(args...) + } +} + +func (logger *Logger) Error(args ...interface{}) { + if logger.Level >= ErrorLevel { + NewEntry(logger).Error(args...) + } +} + +func (logger *Logger) Fatal(args ...interface{}) { + if logger.Level >= FatalLevel { + NewEntry(logger).Fatal(args...) + } + os.Exit(1) +} + +func (logger *Logger) Panic(args ...interface{}) { + if logger.Level >= PanicLevel { + NewEntry(logger).Panic(args...) + } +} + +func (logger *Logger) Debugln(args ...interface{}) { + if logger.Level >= DebugLevel { + NewEntry(logger).Debugln(args...) + } +} + +func (logger *Logger) Infoln(args ...interface{}) { + if logger.Level >= InfoLevel { + NewEntry(logger).Infoln(args...) + } +} + +func (logger *Logger) Println(args ...interface{}) { + NewEntry(logger).Println(args...) +} + +func (logger *Logger) Warnln(args ...interface{}) { + if logger.Level >= WarnLevel { + NewEntry(logger).Warnln(args...) + } +} + +func (logger *Logger) Warningln(args ...interface{}) { + if logger.Level >= WarnLevel { + NewEntry(logger).Warnln(args...) + } +} + +func (logger *Logger) Errorln(args ...interface{}) { + if logger.Level >= ErrorLevel { + NewEntry(logger).Errorln(args...) + } +} + +func (logger *Logger) Fatalln(args ...interface{}) { + if logger.Level >= FatalLevel { + NewEntry(logger).Fatalln(args...) + } + os.Exit(1) +} + +func (logger *Logger) Panicln(args ...interface{}) { + if logger.Level >= PanicLevel { + NewEntry(logger).Panicln(args...) + } +} diff --git a/vendor/github.com/Sirupsen/logrus/logrus.go b/vendor/github.com/Sirupsen/logrus/logrus.go new file mode 100644 index 00000000..e5966911 --- /dev/null +++ b/vendor/github.com/Sirupsen/logrus/logrus.go @@ -0,0 +1,143 @@ +package logrus + +import ( + "fmt" + "log" + "strings" +) + +// Fields type, used to pass to `WithFields`. +type Fields map[string]interface{} + +// Level type +type Level uint8 + +// Convert the Level to a string. E.g. PanicLevel becomes "panic". +func (level Level) String() string { + switch level { + case DebugLevel: + return "debug" + case InfoLevel: + return "info" + case WarnLevel: + return "warning" + case ErrorLevel: + return "error" + case FatalLevel: + return "fatal" + case PanicLevel: + return "panic" + } + + return "unknown" +} + +// ParseLevel takes a string level and returns the Logrus log level constant. +func ParseLevel(lvl string) (Level, error) { + switch strings.ToLower(lvl) { + case "panic": + return PanicLevel, nil + case "fatal": + return FatalLevel, nil + case "error": + return ErrorLevel, nil + case "warn", "warning": + return WarnLevel, nil + case "info": + return InfoLevel, nil + case "debug": + return DebugLevel, nil + } + + var l Level + return l, fmt.Errorf("not a valid logrus Level: %q", lvl) +} + +// A constant exposing all logging levels +var AllLevels = []Level{ + PanicLevel, + FatalLevel, + ErrorLevel, + WarnLevel, + InfoLevel, + DebugLevel, +} + +// These are the different logging levels. You can set the logging level to log +// on your instance of logger, obtained with `logrus.New()`. +const ( + // PanicLevel level, highest level of severity. Logs and then calls panic with the + // message passed to Debug, Info, ... + PanicLevel Level = iota + // FatalLevel level. Logs and then calls `os.Exit(1)`. It will exit even if the + // logging level is set to Panic. + FatalLevel + // ErrorLevel level. Logs. Used for errors that should definitely be noted. + // Commonly used for hooks to send errors to an error tracking service. + ErrorLevel + // WarnLevel level. Non-critical entries that deserve eyes. + WarnLevel + // InfoLevel level. General operational entries about what's going on inside the + // application. + InfoLevel + // DebugLevel level. Usually only enabled when debugging. Very verbose logging. + DebugLevel +) + +// Won't compile if StdLogger can't be realized by a log.Logger +var ( + _ StdLogger = &log.Logger{} + _ StdLogger = &Entry{} + _ StdLogger = &Logger{} +) + +// StdLogger is what your logrus-enabled library should take, that way +// it'll accept a stdlib logger and a logrus logger. There's no standard +// interface, this is the closest we get, unfortunately. +type StdLogger interface { + Print(...interface{}) + Printf(string, ...interface{}) + Println(...interface{}) + + Fatal(...interface{}) + Fatalf(string, ...interface{}) + Fatalln(...interface{}) + + Panic(...interface{}) + Panicf(string, ...interface{}) + Panicln(...interface{}) +} + +// The FieldLogger interface generalizes the Entry and Logger types +type FieldLogger interface { + WithField(key string, value interface{}) *Entry + WithFields(fields Fields) *Entry + WithError(err error) *Entry + + Debugf(format string, args ...interface{}) + Infof(format string, args ...interface{}) + Printf(format string, args ...interface{}) + Warnf(format string, args ...interface{}) + Warningf(format string, args ...interface{}) + Errorf(format string, args ...interface{}) + Fatalf(format string, args ...interface{}) + Panicf(format string, args ...interface{}) + + Debug(args ...interface{}) + Info(args ...interface{}) + Print(args ...interface{}) + Warn(args ...interface{}) + Warning(args ...interface{}) + Error(args ...interface{}) + Fatal(args ...interface{}) + Panic(args ...interface{}) + + Debugln(args ...interface{}) + Infoln(args ...interface{}) + Println(args ...interface{}) + Warnln(args ...interface{}) + Warningln(args ...interface{}) + Errorln(args ...interface{}) + Fatalln(args ...interface{}) + Panicln(args ...interface{}) +} diff --git a/vendor/github.com/Sirupsen/logrus/terminal_bsd.go b/vendor/github.com/Sirupsen/logrus/terminal_bsd.go new file mode 100644 index 00000000..71f8d67a --- /dev/null +++ b/vendor/github.com/Sirupsen/logrus/terminal_bsd.go @@ -0,0 +1,9 @@ +// +build darwin freebsd openbsd netbsd dragonfly + +package logrus + +import "syscall" + +const ioctlReadTermios = syscall.TIOCGETA + +type Termios syscall.Termios diff --git a/vendor/github.com/Sirupsen/logrus/terminal_linux.go b/vendor/github.com/Sirupsen/logrus/terminal_linux.go new file mode 100644 index 00000000..a2c0b40d --- /dev/null +++ b/vendor/github.com/Sirupsen/logrus/terminal_linux.go @@ -0,0 +1,12 @@ +// Based on ssh/terminal: +// Copyright 2013 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package logrus + +import "syscall" + +const ioctlReadTermios = syscall.TCGETS + +type Termios syscall.Termios diff --git a/vendor/github.com/Sirupsen/logrus/terminal_notwindows.go b/vendor/github.com/Sirupsen/logrus/terminal_notwindows.go new file mode 100644 index 00000000..b343b3a3 --- /dev/null +++ b/vendor/github.com/Sirupsen/logrus/terminal_notwindows.go @@ -0,0 +1,21 @@ +// Based on ssh/terminal: +// Copyright 2011 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// +build linux darwin freebsd openbsd netbsd dragonfly + +package logrus + +import ( + "syscall" + "unsafe" +) + +// IsTerminal returns true if stderr's file descriptor is a terminal. +func IsTerminal() bool { + fd := syscall.Stderr + var termios Termios + _, _, err := syscall.Syscall6(syscall.SYS_IOCTL, uintptr(fd), ioctlReadTermios, uintptr(unsafe.Pointer(&termios)), 0, 0, 0) + return err == 0 +} diff --git a/vendor/github.com/Sirupsen/logrus/terminal_solaris.go b/vendor/github.com/Sirupsen/logrus/terminal_solaris.go new file mode 100644 index 00000000..3e70bf7b --- /dev/null +++ b/vendor/github.com/Sirupsen/logrus/terminal_solaris.go @@ -0,0 +1,15 @@ +// +build solaris + +package logrus + +import ( + "os" + + "golang.org/x/sys/unix" +) + +// IsTerminal returns true if the given file descriptor is a terminal. +func IsTerminal() bool { + _, err := unix.IoctlGetTermios(int(os.Stdout.Fd()), unix.TCGETA) + return err == nil +} diff --git a/vendor/github.com/Sirupsen/logrus/terminal_windows.go b/vendor/github.com/Sirupsen/logrus/terminal_windows.go new file mode 100644 index 00000000..0146845d --- /dev/null +++ b/vendor/github.com/Sirupsen/logrus/terminal_windows.go @@ -0,0 +1,27 @@ +// Based on ssh/terminal: +// Copyright 2011 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// +build windows + +package logrus + +import ( + "syscall" + "unsafe" +) + +var kernel32 = syscall.NewLazyDLL("kernel32.dll") + +var ( + procGetConsoleMode = kernel32.NewProc("GetConsoleMode") +) + +// IsTerminal returns true if stderr's file descriptor is a terminal. +func IsTerminal() bool { + fd := syscall.Stderr + var st uint32 + r, _, e := syscall.Syscall(procGetConsoleMode.Addr(), 2, uintptr(fd), uintptr(unsafe.Pointer(&st)), 0) + return r != 0 && e == 0 +} diff --git a/vendor/github.com/Sirupsen/logrus/text_formatter.go b/vendor/github.com/Sirupsen/logrus/text_formatter.go new file mode 100644 index 00000000..06ef2023 --- /dev/null +++ b/vendor/github.com/Sirupsen/logrus/text_formatter.go @@ -0,0 +1,161 @@ +package logrus + +import ( + "bytes" + "fmt" + "runtime" + "sort" + "strings" + "time" +) + +const ( + nocolor = 0 + red = 31 + green = 32 + yellow = 33 + blue = 34 + gray = 37 +) + +var ( + baseTimestamp time.Time + isTerminal bool +) + +func init() { + baseTimestamp = time.Now() + isTerminal = IsTerminal() +} + +func miniTS() int { + return int(time.Since(baseTimestamp) / time.Second) +} + +type TextFormatter struct { + // Set to true to bypass checking for a TTY before outputting colors. + ForceColors bool + + // Force disabling colors. + DisableColors bool + + // Disable timestamp logging. useful when output is redirected to logging + // system that already adds timestamps. + DisableTimestamp bool + + // Enable logging the full timestamp when a TTY is attached instead of just + // the time passed since beginning of execution. + FullTimestamp bool + + // TimestampFormat to use for display when a full timestamp is printed + TimestampFormat string + + // The fields are sorted by default for a consistent output. For applications + // that log extremely frequently and don't use the JSON formatter this may not + // be desired. + DisableSorting bool +} + +func (f *TextFormatter) Format(entry *Entry) ([]byte, error) { + var keys []string = make([]string, 0, len(entry.Data)) + for k := range entry.Data { + keys = append(keys, k) + } + + if !f.DisableSorting { + sort.Strings(keys) + } + + b := &bytes.Buffer{} + + prefixFieldClashes(entry.Data) + + isColorTerminal := isTerminal && (runtime.GOOS != "windows") + isColored := (f.ForceColors || isColorTerminal) && !f.DisableColors + + timestampFormat := f.TimestampFormat + if timestampFormat == "" { + timestampFormat = DefaultTimestampFormat + } + if isColored { + f.printColored(b, entry, keys, timestampFormat) + } else { + if !f.DisableTimestamp { + f.appendKeyValue(b, "time", entry.Time.Format(timestampFormat)) + } + f.appendKeyValue(b, "level", entry.Level.String()) + if entry.Message != "" { + f.appendKeyValue(b, "msg", entry.Message) + } + for _, key := range keys { + f.appendKeyValue(b, key, entry.Data[key]) + } + } + + b.WriteByte('\n') + return b.Bytes(), nil +} + +func (f *TextFormatter) printColored(b *bytes.Buffer, entry *Entry, keys []string, timestampFormat string) { + var levelColor int + switch entry.Level { + case DebugLevel: + levelColor = gray + case WarnLevel: + levelColor = yellow + case ErrorLevel, FatalLevel, PanicLevel: + levelColor = red + default: + levelColor = blue + } + + levelText := strings.ToUpper(entry.Level.String())[0:4] + + if !f.FullTimestamp { + fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%04d] %-44s ", levelColor, levelText, miniTS(), entry.Message) + } else { + fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%s] %-44s ", levelColor, levelText, entry.Time.Format(timestampFormat), entry.Message) + } + for _, k := range keys { + v := entry.Data[k] + fmt.Fprintf(b, " \x1b[%dm%s\x1b[0m=%+v", levelColor, k, v) + } +} + +func needsQuoting(text string) bool { + for _, ch := range text { + if !((ch >= 'a' && ch <= 'z') || + (ch >= 'A' && ch <= 'Z') || + (ch >= '0' && ch <= '9') || + ch == '-' || ch == '.') { + return false + } + } + return true +} + +func (f *TextFormatter) appendKeyValue(b *bytes.Buffer, key string, value interface{}) { + + b.WriteString(key) + b.WriteByte('=') + + switch value := value.(type) { + case string: + if needsQuoting(value) { + b.WriteString(value) + } else { + fmt.Fprintf(b, "%q", value) + } + case error: + errmsg := value.Error() + if needsQuoting(errmsg) { + b.WriteString(errmsg) + } else { + fmt.Fprintf(b, "%q", value) + } + default: + fmt.Fprint(b, value) + } + + b.WriteByte(' ') +} diff --git a/vendor/github.com/Sirupsen/logrus/writer.go b/vendor/github.com/Sirupsen/logrus/writer.go new file mode 100644 index 00000000..1e30b1c7 --- /dev/null +++ b/vendor/github.com/Sirupsen/logrus/writer.go @@ -0,0 +1,31 @@ +package logrus + +import ( + "bufio" + "io" + "runtime" +) + +func (logger *Logger) Writer() *io.PipeWriter { + reader, writer := io.Pipe() + + go logger.writerScanner(reader) + runtime.SetFinalizer(writer, writerFinalizer) + + return writer +} + +func (logger *Logger) writerScanner(reader *io.PipeReader) { + scanner := bufio.NewScanner(reader) + for scanner.Scan() { + logger.Print(scanner.Text()) + } + if err := scanner.Err(); err != nil { + logger.Errorf("Error while reading from Writer: %s", err) + } + reader.Close() +} + +func writerFinalizer(writer *io.PipeWriter) { + writer.Close() +} diff --git a/vendor/github.com/urfave/cli/.gitignore b/vendor/github.com/urfave/cli/.gitignore new file mode 100644 index 00000000..faf70c4c --- /dev/null +++ b/vendor/github.com/urfave/cli/.gitignore @@ -0,0 +1,2 @@ +*.coverprofile +node_modules/ diff --git a/vendor/github.com/urfave/cli/.travis.yml b/vendor/github.com/urfave/cli/.travis.yml new file mode 100644 index 00000000..273d017b --- /dev/null +++ b/vendor/github.com/urfave/cli/.travis.yml @@ -0,0 +1,40 @@ +language: go + +sudo: false + +cache: + directories: + - node_modules + +go: +- 1.2.2 +- 1.3.3 +- 1.4 +- 1.5.4 +- 1.6.2 +- master + +matrix: + allow_failures: + - go: master + include: + - go: 1.6.2 + os: osx + - go: 1.1.2 + install: go get -v . + before_script: echo skipping gfmxr on $TRAVIS_GO_VERSION + script: + - ./runtests vet + - ./runtests test + +before_script: +- go get github.com/urfave/gfmxr/... +- if [ ! -f node_modules/.bin/markdown-toc ] ; then + npm install markdown-toc ; + fi + +script: +- ./runtests vet +- ./runtests test +- ./runtests gfmxr +- ./runtests toc diff --git a/vendor/github.com/urfave/cli/CHANGELOG.md b/vendor/github.com/urfave/cli/CHANGELOG.md new file mode 100644 index 00000000..d1904fe0 --- /dev/null +++ b/vendor/github.com/urfave/cli/CHANGELOG.md @@ -0,0 +1,329 @@ +# Change Log + +**ATTN**: This project uses [semantic versioning](http://semver.org/). + +## [Unreleased] + +## [1.18.0] - 2016-06-27 +### Added +- `./runtests` test runner with coverage tracking by default +- testing on OS X +- testing on Windows +- `UintFlag`, `Uint64Flag`, and `Int64Flag` types and supporting code + +### Changed +- Use spaces for alignment in help/usage output instead of tabs, making the + output alignment consistent regardless of tab width + +### Fixed +- Printing of command aliases in help text +- Printing of visible flags for both struct and struct pointer flags +- Display the `help` subcommand when using `CommandCategories` +- No longer swallows `panic`s that occur within the `Action`s themselves when + detecting the signature of the `Action` field + +## [1.17.0] - 2016-05-09 +### Added +- Pluggable flag-level help text rendering via `cli.DefaultFlagStringFunc` +- `context.GlobalBoolT` was added as an analogue to `context.GlobalBool` +- Support for hiding commands by setting `Hidden: true` -- this will hide the + commands in help output + +### Changed +- `Float64Flag`, `IntFlag`, and `DurationFlag` default values are no longer + quoted in help text output. +- All flag types now include `(default: {value})` strings following usage when a + default value can be (reasonably) detected. +- `IntSliceFlag` and `StringSliceFlag` usage strings are now more consistent + with non-slice flag types +- Apps now exit with a code of 3 if an unknown subcommand is specified + (previously they printed "No help topic for...", but still exited 0. This + makes it easier to script around apps built using `cli` since they can trust + that a 0 exit code indicated a successful execution. +- cleanups based on [Go Report Card + feedback](https://goreportcard.com/report/github.com/urfave/cli) + +## [1.16.0] - 2016-05-02 +### Added +- `Hidden` field on all flag struct types to omit from generated help text + +### Changed +- `BashCompletionFlag` (`--enable-bash-completion`) is now omitted from +generated help text via the `Hidden` field + +### Fixed +- handling of error values in `HandleAction` and `HandleExitCoder` + +## [1.15.0] - 2016-04-30 +### Added +- This file! +- Support for placeholders in flag usage strings +- `App.Metadata` map for arbitrary data/state management +- `Set` and `GlobalSet` methods on `*cli.Context` for altering values after +parsing. +- Support for nested lookup of dot-delimited keys in structures loaded from +YAML. + +### Changed +- The `App.Action` and `Command.Action` now prefer a return signature of +`func(*cli.Context) error`, as defined by `cli.ActionFunc`. If a non-nil +`error` is returned, there may be two outcomes: + - If the error fulfills `cli.ExitCoder`, then `os.Exit` will be called + automatically + - Else the error is bubbled up and returned from `App.Run` +- Specifying an `Action` with the legacy return signature of +`func(*cli.Context)` will produce a deprecation message to stderr +- Specifying an `Action` that is not a `func` type will produce a non-zero exit +from `App.Run` +- Specifying an `Action` func that has an invalid (input) signature will +produce a non-zero exit from `App.Run` + +### Deprecated +- +`cli.App.RunAndExitOnError`, which should now be done by returning an error +that fulfills `cli.ExitCoder` to `cli.App.Run`. +- the legacy signature for +`cli.App.Action` of `func(*cli.Context)`, which should now have a return +signature of `func(*cli.Context) error`, as defined by `cli.ActionFunc`. + +### Fixed +- Added missing `*cli.Context.GlobalFloat64` method + +## [1.14.0] - 2016-04-03 (backfilled 2016-04-25) +### Added +- Codebeat badge +- Support for categorization via `CategorizedHelp` and `Categories` on app. + +### Changed +- Use `filepath.Base` instead of `path.Base` in `Name` and `HelpName`. + +### Fixed +- Ensure version is not shown in help text when `HideVersion` set. + +## [1.13.0] - 2016-03-06 (backfilled 2016-04-25) +### Added +- YAML file input support. +- `NArg` method on context. + +## [1.12.0] - 2016-02-17 (backfilled 2016-04-25) +### Added +- Custom usage error handling. +- Custom text support in `USAGE` section of help output. +- Improved help messages for empty strings. +- AppVeyor CI configuration. + +### Changed +- Removed `panic` from default help printer func. +- De-duping and optimizations. + +### Fixed +- Correctly handle `Before`/`After` at command level when no subcommands. +- Case of literal `-` argument causing flag reordering. +- Environment variable hints on Windows. +- Docs updates. + +## [1.11.1] - 2015-12-21 (backfilled 2016-04-25) +### Changed +- Use `path.Base` in `Name` and `HelpName` +- Export `GetName` on flag types. + +### Fixed +- Flag parsing when skipping is enabled. +- Test output cleanup. +- Move completion check to account for empty input case. + +## [1.11.0] - 2015-11-15 (backfilled 2016-04-25) +### Added +- Destination scan support for flags. +- Testing against `tip` in Travis CI config. + +### Changed +- Go version in Travis CI config. + +### Fixed +- Removed redundant tests. +- Use correct example naming in tests. + +## [1.10.2] - 2015-10-29 (backfilled 2016-04-25) +### Fixed +- Remove unused var in bash completion. + +## [1.10.1] - 2015-10-21 (backfilled 2016-04-25) +### Added +- Coverage and reference logos in README. + +### Fixed +- Use specified values in help and version parsing. +- Only display app version and help message once. + +## [1.10.0] - 2015-10-06 (backfilled 2016-04-25) +### Added +- More tests for existing functionality. +- `ArgsUsage` at app and command level for help text flexibility. + +### Fixed +- Honor `HideHelp` and `HideVersion` in `App.Run`. +- Remove juvenile word from README. + +## [1.9.0] - 2015-09-08 (backfilled 2016-04-25) +### Added +- `FullName` on command with accompanying help output update. +- Set default `$PROG` in bash completion. + +### Changed +- Docs formatting. + +### Fixed +- Removed self-referential imports in tests. + +## [1.8.0] - 2015-06-30 (backfilled 2016-04-25) +### Added +- Support for `Copyright` at app level. +- `Parent` func at context level to walk up context lineage. + +### Fixed +- Global flag processing at top level. + +## [1.7.1] - 2015-06-11 (backfilled 2016-04-25) +### Added +- Aggregate errors from `Before`/`After` funcs. +- Doc comments on flag structs. +- Include non-global flags when checking version and help. +- Travis CI config updates. + +### Fixed +- Ensure slice type flags have non-nil values. +- Collect global flags from the full command hierarchy. +- Docs prose. + +## [1.7.0] - 2015-05-03 (backfilled 2016-04-25) +### Changed +- `HelpPrinter` signature includes output writer. + +### Fixed +- Specify go 1.1+ in docs. +- Set `Writer` when running command as app. + +## [1.6.0] - 2015-03-23 (backfilled 2016-04-25) +### Added +- Multiple author support. +- `NumFlags` at context level. +- `Aliases` at command level. + +### Deprecated +- `ShortName` at command level. + +### Fixed +- Subcommand help output. +- Backward compatible support for deprecated `Author` and `Email` fields. +- Docs regarding `Names`/`Aliases`. + +## [1.5.0] - 2015-02-20 (backfilled 2016-04-25) +### Added +- `After` hook func support at app and command level. + +### Fixed +- Use parsed context when running command as subcommand. +- Docs prose. + +## [1.4.1] - 2015-01-09 (backfilled 2016-04-25) +### Added +- Support for hiding `-h / --help` flags, but not `help` subcommand. +- Stop flag parsing after `--`. + +### Fixed +- Help text for generic flags to specify single value. +- Use double quotes in output for defaults. +- Use `ParseInt` instead of `ParseUint` for int environment var values. +- Use `0` as base when parsing int environment var values. + +## [1.4.0] - 2014-12-12 (backfilled 2016-04-25) +### Added +- Support for environment variable lookup "cascade". +- Support for `Stdout` on app for output redirection. + +### Fixed +- Print command help instead of app help in `ShowCommandHelp`. + +## [1.3.1] - 2014-11-13 (backfilled 2016-04-25) +### Added +- Docs and example code updates. + +### Changed +- Default `-v / --version` flag made optional. + +## [1.3.0] - 2014-08-10 (backfilled 2016-04-25) +### Added +- `FlagNames` at context level. +- Exposed `VersionPrinter` var for more control over version output. +- Zsh completion hook. +- `AUTHOR` section in default app help template. +- Contribution guidelines. +- `DurationFlag` type. + +## [1.2.0] - 2014-08-02 +### Added +- Support for environment variable defaults on flags plus tests. + +## [1.1.0] - 2014-07-15 +### Added +- Bash completion. +- Optional hiding of built-in help command. +- Optional skipping of flag parsing at command level. +- `Author`, `Email`, and `Compiled` metadata on app. +- `Before` hook func support at app and command level. +- `CommandNotFound` func support at app level. +- Command reference available on context. +- `GenericFlag` type. +- `Float64Flag` type. +- `BoolTFlag` type. +- `IsSet` flag helper on context. +- More flag lookup funcs at context level. +- More tests & docs. + +### Changed +- Help template updates to account for presence/absence of flags. +- Separated subcommand help template. +- Exposed `HelpPrinter` var for more control over help output. + +## [1.0.0] - 2013-11-01 +### Added +- `help` flag in default app flag set and each command flag set. +- Custom handling of argument parsing errors. +- Command lookup by name at app level. +- `StringSliceFlag` type and supporting `StringSlice` type. +- `IntSliceFlag` type and supporting `IntSlice` type. +- Slice type flag lookups by name at context level. +- Export of app and command help functions. +- More tests & docs. + +## 0.1.0 - 2013-07-22 +### Added +- Initial implementation. + +[Unreleased]: https://github.com/urfave/cli/compare/v1.18.0...HEAD +[1.18.0]: https://github.com/urfave/cli/compare/v1.17.0...v1.18.0 +[1.17.0]: https://github.com/urfave/cli/compare/v1.16.0...v1.17.0 +[1.16.0]: https://github.com/urfave/cli/compare/v1.15.0...v1.16.0 +[1.15.0]: https://github.com/urfave/cli/compare/v1.14.0...v1.15.0 +[1.14.0]: https://github.com/urfave/cli/compare/v1.13.0...v1.14.0 +[1.13.0]: https://github.com/urfave/cli/compare/v1.12.0...v1.13.0 +[1.12.0]: https://github.com/urfave/cli/compare/v1.11.1...v1.12.0 +[1.11.1]: https://github.com/urfave/cli/compare/v1.11.0...v1.11.1 +[1.11.0]: https://github.com/urfave/cli/compare/v1.10.2...v1.11.0 +[1.10.2]: https://github.com/urfave/cli/compare/v1.10.1...v1.10.2 +[1.10.1]: https://github.com/urfave/cli/compare/v1.10.0...v1.10.1 +[1.10.0]: https://github.com/urfave/cli/compare/v1.9.0...v1.10.0 +[1.9.0]: https://github.com/urfave/cli/compare/v1.8.0...v1.9.0 +[1.8.0]: https://github.com/urfave/cli/compare/v1.7.1...v1.8.0 +[1.7.1]: https://github.com/urfave/cli/compare/v1.7.0...v1.7.1 +[1.7.0]: https://github.com/urfave/cli/compare/v1.6.0...v1.7.0 +[1.6.0]: https://github.com/urfave/cli/compare/v1.5.0...v1.6.0 +[1.5.0]: https://github.com/urfave/cli/compare/v1.4.1...v1.5.0 +[1.4.1]: https://github.com/urfave/cli/compare/v1.4.0...v1.4.1 +[1.4.0]: https://github.com/urfave/cli/compare/v1.3.1...v1.4.0 +[1.3.1]: https://github.com/urfave/cli/compare/v1.3.0...v1.3.1 +[1.3.0]: https://github.com/urfave/cli/compare/v1.2.0...v1.3.0 +[1.2.0]: https://github.com/urfave/cli/compare/v1.1.0...v1.2.0 +[1.1.0]: https://github.com/urfave/cli/compare/v1.0.0...v1.1.0 +[1.0.0]: https://github.com/urfave/cli/compare/v0.1.0...v1.0.0 diff --git a/vendor/github.com/urfave/cli/LICENSE b/vendor/github.com/urfave/cli/LICENSE new file mode 100644 index 00000000..42a597e2 --- /dev/null +++ b/vendor/github.com/urfave/cli/LICENSE @@ -0,0 +1,21 @@ +MIT License + +Copyright (c) 2016 Jeremy Saenz & Contributors + +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. diff --git a/vendor/github.com/urfave/cli/README.md b/vendor/github.com/urfave/cli/README.md new file mode 100644 index 00000000..ebb1d741 --- /dev/null +++ b/vendor/github.com/urfave/cli/README.md @@ -0,0 +1,1309 @@ +cli +=== + +[![Build Status](https://travis-ci.org/urfave/cli.svg?branch=master)](https://travis-ci.org/urfave/cli) +[![Windows Build Status](https://ci.appveyor.com/api/projects/status/rtgk5xufi932pb2v?svg=true)](https://ci.appveyor.com/project/urfave/cli) +[![GoDoc](https://godoc.org/github.com/urfave/cli?status.svg)](https://godoc.org/github.com/urfave/cli) +[![codebeat](https://codebeat.co/badges/0a8f30aa-f975-404b-b878-5fab3ae1cc5f)](https://codebeat.co/projects/github-com-urfave-cli) +[![Go Report Card](https://goreportcard.com/badge/urfave/cli)](https://goreportcard.com/report/urfave/cli) +[![top level coverage](https://gocover.io/_badge/github.com/urfave/cli?0 "top level coverage")](http://gocover.io/github.com/urfave/cli) / +[![altsrc coverage](https://gocover.io/_badge/github.com/urfave/cli/altsrc?0 "altsrc coverage")](http://gocover.io/github.com/urfave/cli/altsrc) + +**Notice:** This is the library formerly known as +`github.com/codegangsta/cli` -- Github will automatically redirect requests +to this repository, but we recommend updating your references for clarity. + +cli is a simple, fast, and fun package for building command line apps in Go. The +goal is to enable developers to write fast and distributable command line +applications in an expressive way. + + + +- [Overview](#overview) +- [Installation](#installation) + * [Supported platforms](#supported-platforms) + * [Using the `v2` branch](#using-the-v2-branch) + * [Pinning to the `v1` branch](#pinning-to-the-v1-branch) +- [Getting Started](#getting-started) +- [Examples](#examples) + * [Arguments](#arguments) + * [Flags](#flags) + + [Placeholder Values](#placeholder-values) + + [Alternate Names](#alternate-names) + + [Values from the Environment](#values-from-the-environment) + + [Values from alternate input sources (YAML and others)](#values-from-alternate-input-sources-yaml-and-others) + * [Subcommands](#subcommands) + * [Subcommands categories](#subcommands-categories) + * [Exit code](#exit-code) + * [Bash Completion](#bash-completion) + + [Enabling](#enabling) + + [Distribution](#distribution) + + [Customization](#customization) + * [Generated Help Text](#generated-help-text) + + [Customization](#customization-1) + * [Version Flag](#version-flag) + + [Customization](#customization-2) + + [Full API Example](#full-api-example) +- [Contribution Guidelines](#contribution-guidelines) + + + +## Overview + +Command line apps are usually so tiny that there is absolutely no reason why +your code should *not* be self-documenting. Things like generating help text and +parsing command flags/options should not hinder productivity when writing a +command line app. + +**This is where cli comes into play.** cli makes command line programming fun, +organized, and expressive! + +## Installation + +Make sure you have a working Go environment. Go version 1.1+ is required for +core cli, whereas use of the [`./altsrc`](./altsrc) input extensions requires Go +version 1.2+. [See the install +instructions](http://golang.org/doc/install.html). + +To install cli, simply run: +``` +$ go get github.com/urfave/cli +``` + +Make sure your `PATH` includes to the `$GOPATH/bin` directory so your commands +can be easily used: +``` +export PATH=$PATH:$GOPATH/bin +``` + +### Supported platforms + +cli is tested against multiple versions of Go on Linux, and against the latest +released version of Go on OS X and Windows. For full details, see +[`./.travis.yml`](./.travis.yml) and [`./appveyor.yml`](./appveyor.yml). + +### Using the `v2` branch + +**Warning**: The `v2` branch is currently unreleased and considered unstable. + +There is currently a long-lived branch named `v2` that is intended to land as +the new `master` branch once development there has settled down. The current +`master` branch (mirrored as `v1`) is being manually merged into `v2` on +an irregular human-based schedule, but generally if one wants to "upgrade" to +`v2` *now* and accept the volatility (read: "awesomeness") that comes along with +that, please use whatever version pinning of your preference, such as via +`gopkg.in`: + +``` +$ go get gopkg.in/urfave/cli.v2 +``` + +``` go +... +import ( + "gopkg.in/urfave/cli.v2" // imports as package "cli" +) +... +``` + +### Pinning to the `v1` branch + +Similarly to the section above describing use of the `v2` branch, if one wants +to avoid any unexpected compatibility pains once `v2` becomes `master`, then +pinning to the `v1` branch is an acceptable option, e.g.: + +``` +$ go get gopkg.in/urfave/cli.v1 +``` + +``` go +... +import ( + "gopkg.in/urfave/cli.v1" // imports as package "cli" +) +... +``` + +## Getting Started + +One of the philosophies behind cli is that an API should be playful and full of +discovery. So a cli app can be as little as one line of code in `main()`. + + +``` go +package main + +import ( + "os" + + "github.com/urfave/cli" +) + +func main() { + cli.NewApp().Run(os.Args) +} +``` + +This app will run and show help text, but is not very useful. Let's give an +action to execute and some help documentation: + + +``` go +package main + +import ( + "fmt" + "os" + + "github.com/urfave/cli" +) + +func main() { + app := cli.NewApp() + app.Name = "boom" + app.Usage = "make an explosive entrance" + app.Action = func(c *cli.Context) error { + fmt.Println("boom! I say!") + return nil + } + + app.Run(os.Args) +} +``` + +Running this already gives you a ton of functionality, plus support for things +like subcommands and flags, which are covered below. + +## Examples + +Being a programmer can be a lonely job. Thankfully by the power of automation +that is not the case! Let's create a greeter app to fend off our demons of +loneliness! + +Start by creating a directory named `greet`, and within it, add a file, +`greet.go` with the following code in it: + + +``` go +package main + +import ( + "fmt" + "os" + + "github.com/urfave/cli" +) + +func main() { + app := cli.NewApp() + app.Name = "greet" + app.Usage = "fight the loneliness!" + app.Action = func(c *cli.Context) error { + fmt.Println("Hello friend!") + return nil + } + + app.Run(os.Args) +} +``` + +Install our command to the `$GOPATH/bin` directory: + +``` +$ go install +``` + +Finally run our new command: + +``` +$ greet +Hello friend! +``` + +cli also generates neat help text: + +``` +$ greet help +NAME: + greet - fight the loneliness! + +USAGE: + greet [global options] command [command options] [arguments...] + +VERSION: + 0.0.0 + +COMMANDS: + help, h Shows a list of commands or help for one command + +GLOBAL OPTIONS + --version Shows version information +``` + +### Arguments + +You can lookup arguments by calling the `Args` function on `cli.Context`, e.g.: + + +``` go +package main + +import ( + "fmt" + "os" + + "github.com/urfave/cli" +) + +func main() { + app := cli.NewApp() + + app.Action = func(c *cli.Context) error { + fmt.Printf("Hello %q", c.Args().Get(0)) + return nil + } + + app.Run(os.Args) +} +``` + +### Flags + +Setting and querying flags is simple. + + +``` go +package main + +import ( + "fmt" + "os" + + "github.com/urfave/cli" +) + +func main() { + app := cli.NewApp() + + app.Flags = []cli.Flag { + cli.StringFlag{ + Name: "lang", + Value: "english", + Usage: "language for the greeting", + }, + } + + app.Action = func(c *cli.Context) error { + name := "Nefertiti" + if c.NArg() > 0 { + name = c.Args().Get(0) + } + if c.String("lang") == "spanish" { + fmt.Println("Hola", name) + } else { + fmt.Println("Hello", name) + } + return nil + } + + app.Run(os.Args) +} +``` + +You can also set a destination variable for a flag, to which the content will be +scanned. + + +``` go +package main + +import ( + "os" + "fmt" + + "github.com/urfave/cli" +) + +func main() { + var language string + + app := cli.NewApp() + + app.Flags = []cli.Flag { + cli.StringFlag{ + Name: "lang", + Value: "english", + Usage: "language for the greeting", + Destination: &language, + }, + } + + app.Action = func(c *cli.Context) error { + name := "someone" + if c.NArg() > 0 { + name = c.Args()[0] + } + if language == "spanish" { + fmt.Println("Hola", name) + } else { + fmt.Println("Hello", name) + } + return nil + } + + app.Run(os.Args) +} +``` + +See full list of flags at http://godoc.org/github.com/urfave/cli + +#### Placeholder Values + +Sometimes it's useful to specify a flag's value within the usage string itself. +Such placeholders are indicated with back quotes. + +For example this: + + +```go +package main + +import ( + "os" + + "github.com/urfave/cli" +) + +func main() { + app := cli.NewApp() + + app.Flags = []cli.Flag{ + cli.StringFlag{ + Name: "config, c", + Usage: "Load configuration from `FILE`", + }, + } + + app.Run(os.Args) +} +``` + +Will result in help output like: + +``` +--config FILE, -c FILE Load configuration from FILE +``` + +Note that only the first placeholder is used. Subsequent back-quoted words will +be left as-is. + +#### Alternate Names + +You can set alternate (or short) names for flags by providing a comma-delimited +list for the `Name`. e.g. + + +``` go +package main + +import ( + "os" + + "github.com/urfave/cli" +) + +func main() { + app := cli.NewApp() + + app.Flags = []cli.Flag { + cli.StringFlag{ + Name: "lang, l", + Value: "english", + Usage: "language for the greeting", + }, + } + + app.Run(os.Args) +} +``` + +That flag can then be set with `--lang spanish` or `-l spanish`. Note that +giving two different forms of the same flag in the same command invocation is an +error. + +#### Values from the Environment + +You can also have the default value set from the environment via `EnvVar`. e.g. + + +``` go +package main + +import ( + "os" + + "github.com/urfave/cli" +) + +func main() { + app := cli.NewApp() + + app.Flags = []cli.Flag { + cli.StringFlag{ + Name: "lang, l", + Value: "english", + Usage: "language for the greeting", + EnvVar: "APP_LANG", + }, + } + + app.Run(os.Args) +} +``` + +The `EnvVar` may also be given as a comma-delimited "cascade", where the first +environment variable that resolves is used as the default. + + +``` go +package main + +import ( + "os" + + "github.com/urfave/cli" +) + +func main() { + app := cli.NewApp() + + app.Flags = []cli.Flag { + cli.StringFlag{ + Name: "lang, l", + Value: "english", + Usage: "language for the greeting", + EnvVar: "LEGACY_COMPAT_LANG,APP_LANG,LANG", + }, + } + + app.Run(os.Args) +} +``` + +#### Values from alternate input sources (YAML and others) + +There is a separate package altsrc that adds support for getting flag values +from other input sources like YAML. + +In order to get values for a flag from an alternate input source the following +code would be added to wrap an existing cli.Flag like below: + +``` go + altsrc.NewIntFlag(cli.IntFlag{Name: "test"}) +``` + +Initialization must also occur for these flags. Below is an example initializing +getting data from a yaml file below. + +``` go + command.Before = altsrc.InitInputSourceWithContext(command.Flags, NewYamlSourceFromFlagFunc("load")) +``` + +The code above will use the "load" string as a flag name to get the file name of +a yaml file from the cli.Context. It will then use that file name to initialize +the yaml input source for any flags that are defined on that command. As a note +the "load" flag used would also have to be defined on the command flags in order +for this code snipped to work. + +Currently only YAML files are supported but developers can add support for other +input sources by implementing the altsrc.InputSourceContext for their given +sources. + +Here is a more complete sample of a command using YAML support: + + +``` go +package notmain + +import ( + "fmt" + "os" + + "github.com/urfave/cli" + "github.com/urfave/cli/altsrc" +) + +func main() { + app := cli.NewApp() + + flags := []cli.Flag{ + altsrc.NewIntFlag(cli.IntFlag{Name: "test"}), + cli.StringFlag{Name: "load"}, + } + + app.Action = func(c *cli.Context) error { + fmt.Println("yaml ist rad") + return nil + } + + app.Before = altsrc.InitInputSourceWithContext(flags, altsrc.NewYamlSourceFromFlagFunc("load")) + app.Flags = flags + + app.Run(os.Args) +} +``` + +### Subcommands + +Subcommands can be defined for a more git-like command line app. + + +```go +package main + +import ( + "fmt" + "os" + + "github.com/urfave/cli" +) + +func main() { + app := cli.NewApp() + + app.Commands = []cli.Command{ + { + Name: "add", + Aliases: []string{"a"}, + Usage: "add a task to the list", + Action: func(c *cli.Context) error { + fmt.Println("added task: ", c.Args().First()) + return nil + }, + }, + { + Name: "complete", + Aliases: []string{"c"}, + Usage: "complete a task on the list", + Action: func(c *cli.Context) error { + fmt.Println("completed task: ", c.Args().First()) + return nil + }, + }, + { + Name: "template", + Aliases: []string{"t"}, + Usage: "options for task templates", + Subcommands: []cli.Command{ + { + Name: "add", + Usage: "add a new template", + Action: func(c *cli.Context) error { + fmt.Println("new task template: ", c.Args().First()) + return nil + }, + }, + { + Name: "remove", + Usage: "remove an existing template", + Action: func(c *cli.Context) error { + fmt.Println("removed task template: ", c.Args().First()) + return nil + }, + }, + }, + }, + } + + app.Run(os.Args) +} +``` + +### Subcommands categories + +For additional organization in apps that have many subcommands, you can +associate a category for each command to group them together in the help +output. + +E.g. + +```go +package main + +import ( + "os" + + "github.com/urfave/cli" +) + +func main() { + app := cli.NewApp() + + app.Commands = []cli.Command{ + { + Name: "noop", + }, + { + Name: "add", + Category: "template", + }, + { + Name: "remove", + Category: "template", + }, + } + + app.Run(os.Args) +} +``` + +Will include: + +``` +COMMANDS: + noop + + Template actions: + add + remove +``` + +### Exit code + +Calling `App.Run` will not automatically call `os.Exit`, which means that by +default the exit code will "fall through" to being `0`. An explicit exit code +may be set by returning a non-nil error that fulfills `cli.ExitCoder`, *or* a +`cli.MultiError` that includes an error that fulfills `cli.ExitCoder`, e.g.: + +``` go +package main + +import ( + "os" + + "github.com/urfave/cli" +) + +func main() { + app := cli.NewApp() + app.Flags = []cli.Flag{ + cli.BoolTFlag{ + Name: "ginger-crouton", + Usage: "is it in the soup?", + }, + } + app.Action = func(ctx *cli.Context) error { + if !ctx.Bool("ginger-crouton") { + return cli.NewExitError("it is not in the soup", 86) + } + return nil + } + + app.Run(os.Args) +} +``` + +### Bash Completion + +You can enable completion commands by setting the `EnableBashCompletion` +flag on the `App` object. By default, this setting will only auto-complete to +show an app's subcommands, but you can write your own completion methods for +the App or its subcommands. + + +``` go +package main + +import ( + "fmt" + "os" + + "github.com/urfave/cli" +) + +func main() { + tasks := []string{"cook", "clean", "laundry", "eat", "sleep", "code"} + + app := cli.NewApp() + app.EnableBashCompletion = true + app.Commands = []cli.Command{ + { + Name: "complete", + Aliases: []string{"c"}, + Usage: "complete a task on the list", + Action: func(c *cli.Context) error { + fmt.Println("completed task: ", c.Args().First()) + return nil + }, + BashComplete: func(c *cli.Context) { + // This will complete if no args are passed + if c.NArg() > 0 { + return + } + for _, t := range tasks { + fmt.Println(t) + } + }, + }, + } + + app.Run(os.Args) +} +``` + +#### Enabling + +Source the `autocomplete/bash_autocomplete` file in your `.bashrc` file while +setting the `PROG` variable to the name of your program: + +`PROG=myprogram source /.../cli/autocomplete/bash_autocomplete` + +#### Distribution + +Copy `autocomplete/bash_autocomplete` into `/etc/bash_completion.d/` and rename +it to the name of the program you wish to add autocomplete support for (or +automatically install it there if you are distributing a package). Don't forget +to source the file to make it active in the current shell. + +``` +sudo cp src/bash_autocomplete /etc/bash_completion.d/ +source /etc/bash_completion.d/ +``` + +Alternatively, you can just document that users should source the generic +`autocomplete/bash_autocomplete` in their bash configuration with `$PROG` set +to the name of their program (as above). + +#### Customization + +The default bash completion flag (`--generate-bash-completion`) is defined as +`cli.BashCompletionFlag`, and may be redefined if desired, e.g.: + + +``` go +package main + +import ( + "os" + + "github.com/urfave/cli" +) + +func main() { + cli.BashCompletionFlag = cli.BoolFlag{ + Name: "compgen", + Hidden: true, + } + + app := cli.NewApp() + app.EnableBashCompletion = true + app.Commands = []cli.Command{ + { + Name: "wat", + }, + } + app.Run(os.Args) +} +``` + +### Generated Help Text + +The default help flag (`-h/--help`) is defined as `cli.HelpFlag` and is checked +by the cli internals in order to print generated help text for the app, command, +or subcommand, and break execution. + +#### Customization + +All of the help text generation may be customized, and at multiple levels. The +templates are exposed as variables `AppHelpTemplate`, `CommandHelpTemplate`, and +`SubcommandHelpTemplate` which may be reassigned or augmented, and full override +is possible by assigning a compatible func to the `cli.HelpPrinter` variable, +e.g.: + + +``` go +package main + +import ( + "fmt" + "io" + "os" + + "github.com/urfave/cli" +) + +func main() { + // EXAMPLE: Append to an existing template + cli.AppHelpTemplate = fmt.Sprintf(`%s + +WEBSITE: http://awesometown.example.com + +SUPPORT: support@awesometown.example.com + +`, cli.AppHelpTemplate) + + // EXAMPLE: Override a template + cli.AppHelpTemplate = `NAME: + {{.Name}} - {{.Usage}} +USAGE: + {{.HelpName}} {{if .VisibleFlags}}[global options]{{end}}{{if .Commands}} command +[command options]{{end}} {{if +.ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}} + {{if len .Authors}} +AUTHOR(S): + {{range .Authors}}{{ . }}{{end}} + {{end}}{{if .Commands}} +COMMANDS: +{{range .Commands}}{{if not .HideHelp}} {{join .Names ", "}}{{ "\t" +}}{{.Usage}}{{ "\n" }}{{end}}{{end}}{{end}}{{if .VisibleFlags}} +GLOBAL OPTIONS: + {{range .VisibleFlags}}{{.}} + {{end}}{{end}}{{if .Copyright }} +COPYRIGHT: + {{.Copyright}} + {{end}}{{if .Version}} +VERSION: + {{.Version}} + {{end}} +` + + // EXAMPLE: Replace the `HelpPrinter` func + cli.HelpPrinter = func(w io.Writer, templ string, data interface{}) { + fmt.Println("Ha HA. I pwnd the help!!1") + } + + cli.NewApp().Run(os.Args) +} +``` + +The default flag may be customized to something other than `-h/--help` by +setting `cli.HelpFlag`, e.g.: + + +``` go +package main + +import ( + "os" + + "github.com/urfave/cli" +) + +func main() { + cli.HelpFlag = cli.BoolFlag{ + Name: "halp, haaaaalp", + Usage: "HALP", + EnvVar: "SHOW_HALP,HALPPLZ", + } + + cli.NewApp().Run(os.Args) +} +``` + +### Version Flag + +The default version flag (`-v/--version`) is defined as `cli.VersionFlag`, which +is checked by the cli internals in order to print the `App.Version` via +`cli.VersionPrinter` and break execution. + +#### Customization + +The default flag may be cusomized to something other than `-v/--version` by +setting `cli.VersionFlag`, e.g.: + + +``` go +package main + +import ( + "os" + + "github.com/urfave/cli" +) + +func main() { + cli.VersionFlag = cli.BoolFlag{ + Name: "print-version, V", + Usage: "print only the version", + } + + app := cli.NewApp() + app.Name = "partay" + app.Version = "v19.99.0" + app.Run(os.Args) +} +``` + +Alternatively, the version printer at `cli.VersionPrinter` may be overridden, e.g.: + + +``` go +package main + +import ( + "fmt" + "os" + + "github.com/urfave/cli" +) + +var ( + Revision = "fafafaf" +) + +func main() { + cli.VersionPrinter = func(c *cli.Context) { + fmt.Printf("version=%s revision=%s\n", c.App.Version, Revision) + } + + app := cli.NewApp() + app.Name = "partay" + app.Version = "v19.99.0" + app.Run(os.Args) +} +``` + +#### Full API Example + +**Notice**: This is a contrived (functioning) example meant strictly for API +demonstration purposes. Use of one's imagination is encouraged. + + +``` go +package main + +import ( + "errors" + "flag" + "fmt" + "io" + "io/ioutil" + "os" + "time" + + "github.com/urfave/cli" +) + +func init() { + cli.AppHelpTemplate += "\nCUSTOMIZED: you bet ur muffins\n" + cli.CommandHelpTemplate += "\nYMMV\n" + cli.SubcommandHelpTemplate += "\nor something\n" + + cli.HelpFlag = cli.BoolFlag{Name: "halp"} + cli.BashCompletionFlag = cli.BoolFlag{Name: "compgen", Hidden: true} + cli.VersionFlag = cli.BoolFlag{Name: "print-version, V"} + + cli.HelpPrinter = func(w io.Writer, templ string, data interface{}) { + fmt.Fprintf(w, "best of luck to you\n") + } + cli.VersionPrinter = func(c *cli.Context) { + fmt.Fprintf(c.App.Writer, "version=%s\n", c.App.Version) + } + cli.OsExiter = func(c int) { + fmt.Fprintf(cli.ErrWriter, "refusing to exit %d\n", c) + } + cli.ErrWriter = ioutil.Discard + cli.FlagStringer = func(fl cli.Flag) string { + return fmt.Sprintf("\t\t%s", fl.GetName()) + } +} + +type hexWriter struct{} + +func (w *hexWriter) Write(p []byte) (int, error) { + for _, b := range p { + fmt.Printf("%x", b) + } + fmt.Printf("\n") + + return len(p), nil +} + +type genericType struct{ + s string +} + +func (g *genericType) Set(value string) error { + g.s = value + return nil +} + +func (g *genericType) String() string { + return g.s +} + +func main() { + app := cli.NewApp() + app.Name = "kənˈtrīv" + app.Version = "v19.99.0" + app.Compiled = time.Now() + app.Authors = []cli.Author{ + cli.Author{ + Name: "Example Human", + Email: "human@example.com", + }, + } + app.Copyright = "(c) 1999 Serious Enterprise" + app.HelpName = "contrive" + app.Usage = "demonstrate available API" + app.UsageText = "contrive - demonstrating the available API" + app.ArgsUsage = "[args and such]" + app.Commands = []cli.Command{ + cli.Command{ + Name: "doo", + Aliases: []string{"do"}, + Category: "motion", + Usage: "do the doo", + UsageText: "doo - does the dooing", + Description: "no really, there is a lot of dooing to be done", + ArgsUsage: "[arrgh]", + Flags: []cli.Flag{ + cli.BoolFlag{Name: "forever, forevvarr"}, + }, + Subcommands: cli.Commands{ + cli.Command{ + Name: "wop", + Action: wopAction, + }, + }, + SkipFlagParsing: false, + HideHelp: false, + Hidden: false, + HelpName: "doo!", + BashComplete: func(c *cli.Context) { + fmt.Fprintf(c.App.Writer, "--better\n") + }, + Before: func(c *cli.Context) error { + fmt.Fprintf(c.App.Writer, "brace for impact\n") + return nil + }, + After: func(c *cli.Context) error { + fmt.Fprintf(c.App.Writer, "did we lose anyone?\n") + return nil + }, + Action: func(c *cli.Context) error { + c.Command.FullName() + c.Command.HasName("wop") + c.Command.Names() + c.Command.VisibleFlags() + fmt.Fprintf(c.App.Writer, "dodododododoodododddooooododododooo\n") + if c.Bool("forever") { + c.Command.Run(c) + } + return nil + }, + OnUsageError: func(c *cli.Context, err error, isSubcommand bool) error { + fmt.Fprintf(c.App.Writer, "for shame\n") + return err + }, + }, + } + app.Flags = []cli.Flag{ + cli.BoolFlag{Name: "fancy"}, + cli.BoolTFlag{Name: "fancier"}, + cli.DurationFlag{Name: "howlong, H", Value: time.Second * 3}, + cli.Float64Flag{Name: "howmuch"}, + cli.GenericFlag{Name: "wat", Value: &genericType{}}, + cli.Int64Flag{Name: "longdistance"}, + cli.Int64SliceFlag{Name: "intervals"}, + cli.IntFlag{Name: "distance"}, + cli.IntSliceFlag{Name: "times"}, + cli.StringFlag{Name: "dance-move, d"}, + cli.StringSliceFlag{Name: "names, N"}, + cli.UintFlag{Name: "age"}, + cli.Uint64Flag{Name: "bigage"}, + } + app.EnableBashCompletion = true + app.HideHelp = false + app.HideVersion = false + app.BashComplete = func(c *cli.Context) { + fmt.Fprintf(c.App.Writer, "lipstick\nkiss\nme\nlipstick\nringo\n") + } + app.Before = func(c *cli.Context) error { + fmt.Fprintf(c.App.Writer, "HEEEERE GOES\n") + return nil + } + app.After = func(c *cli.Context) error { + fmt.Fprintf(c.App.Writer, "Phew!\n") + return nil + } + app.CommandNotFound = func(c *cli.Context, command string) { + fmt.Fprintf(c.App.Writer, "Thar be no %q here.\n", command) + } + app.OnUsageError = func(c *cli.Context, err error, isSubcommand bool) error { + if isSubcommand { + return err + } + + fmt.Fprintf(c.App.Writer, "WRONG: %#v\n", err) + return nil + } + app.Action = func(c *cli.Context) error { + cli.DefaultAppComplete(c) + cli.HandleExitCoder(errors.New("not an exit coder, though")) + cli.ShowAppHelp(c) + cli.ShowCommandCompletions(c, "nope") + cli.ShowCommandHelp(c, "also-nope") + cli.ShowCompletions(c) + cli.ShowSubcommandHelp(c) + cli.ShowVersion(c) + + categories := c.App.Categories() + categories.AddCommand("sounds", cli.Command{ + Name: "bloop", + }) + + for _, category := range c.App.Categories() { + fmt.Fprintf(c.App.Writer, "%s\n", category.Name) + fmt.Fprintf(c.App.Writer, "%#v\n", category.Commands) + fmt.Fprintf(c.App.Writer, "%#v\n", category.VisibleCommands()) + } + + fmt.Printf("%#v\n", c.App.Command("doo")) + if c.Bool("infinite") { + c.App.Run([]string{"app", "doo", "wop"}) + } + + if c.Bool("forevar") { + c.App.RunAsSubcommand(c) + } + c.App.Setup() + fmt.Printf("%#v\n", c.App.VisibleCategories()) + fmt.Printf("%#v\n", c.App.VisibleCommands()) + fmt.Printf("%#v\n", c.App.VisibleFlags()) + + fmt.Printf("%#v\n", c.Args().First()) + if len(c.Args()) > 0 { + fmt.Printf("%#v\n", c.Args()[1]) + } + fmt.Printf("%#v\n", c.Args().Present()) + fmt.Printf("%#v\n", c.Args().Tail()) + + set := flag.NewFlagSet("contrive", 0) + nc := cli.NewContext(c.App, set, c) + + fmt.Printf("%#v\n", nc.Args()) + fmt.Printf("%#v\n", nc.Bool("nope")) + fmt.Printf("%#v\n", nc.BoolT("nerp")) + fmt.Printf("%#v\n", nc.Duration("howlong")) + fmt.Printf("%#v\n", nc.Float64("hay")) + fmt.Printf("%#v\n", nc.Generic("bloop")) + fmt.Printf("%#v\n", nc.Int64("bonk")) + fmt.Printf("%#v\n", nc.Int64Slice("burnks")) + fmt.Printf("%#v\n", nc.Int("bips")) + fmt.Printf("%#v\n", nc.IntSlice("blups")) + fmt.Printf("%#v\n", nc.String("snurt")) + fmt.Printf("%#v\n", nc.StringSlice("snurkles")) + fmt.Printf("%#v\n", nc.Uint("flub")) + fmt.Printf("%#v\n", nc.Uint64("florb")) + fmt.Printf("%#v\n", nc.GlobalBool("global-nope")) + fmt.Printf("%#v\n", nc.GlobalBoolT("global-nerp")) + fmt.Printf("%#v\n", nc.GlobalDuration("global-howlong")) + fmt.Printf("%#v\n", nc.GlobalFloat64("global-hay")) + fmt.Printf("%#v\n", nc.GlobalGeneric("global-bloop")) + fmt.Printf("%#v\n", nc.GlobalInt("global-bips")) + fmt.Printf("%#v\n", nc.GlobalIntSlice("global-blups")) + fmt.Printf("%#v\n", nc.GlobalString("global-snurt")) + fmt.Printf("%#v\n", nc.GlobalStringSlice("global-snurkles")) + + fmt.Printf("%#v\n", nc.FlagNames()) + fmt.Printf("%#v\n", nc.GlobalFlagNames()) + fmt.Printf("%#v\n", nc.GlobalIsSet("wat")) + fmt.Printf("%#v\n", nc.GlobalSet("wat", "nope")) + fmt.Printf("%#v\n", nc.NArg()) + fmt.Printf("%#v\n", nc.NumFlags()) + fmt.Printf("%#v\n", nc.Parent()) + + nc.Set("wat", "also-nope") + + ec := cli.NewExitError("ohwell", 86) + fmt.Fprintf(c.App.Writer, "%d", ec.ExitCode()) + fmt.Printf("made it!\n") + return ec + } + + if os.Getenv("HEXY") != "" { + app.Writer = &hexWriter{} + app.ErrWriter = &hexWriter{} + } + + app.Metadata = map[string]interface{}{ + "layers": "many", + "explicable": false, + "whatever-values": 19.99, + } + + app.Run(os.Args) +} + +func wopAction(c *cli.Context) error { + fmt.Fprintf(c.App.Writer, ":wave: over here, eh\n") + return nil +} +``` + +## Contribution Guidelines + +Feel free to put up a pull request to fix a bug or maybe add a feature. I will +give it a code review and make sure that it does not break backwards +compatibility. If I or any other collaborators agree that it is in line with +the vision of the project, we will work with you to get the code into +a mergeable state and merge it into the master branch. + +If you have contributed something significant to the project, we will most +likely add you as a collaborator. As a collaborator you are given the ability +to merge others pull requests. It is very important that new code does not +break existing code, so be careful about what code you do choose to merge. + +If you feel like you have contributed to the project but have not yet been +added as a collaborator, we probably forgot to add you, please open an issue. diff --git a/vendor/github.com/urfave/cli/app.go b/vendor/github.com/urfave/cli/app.go new file mode 100644 index 00000000..a046c012 --- /dev/null +++ b/vendor/github.com/urfave/cli/app.go @@ -0,0 +1,499 @@ +package cli + +import ( + "fmt" + "io" + "io/ioutil" + "os" + "path/filepath" + "reflect" + "sort" + "strings" + "time" +) + +var ( + changeLogURL = "https://github.com/urfave/cli/blob/master/CHANGELOG.md" + appActionDeprecationURL = fmt.Sprintf("%s#deprecated-cli-app-action-signature", changeLogURL) + runAndExitOnErrorDeprecationURL = fmt.Sprintf("%s#deprecated-cli-app-runandexitonerror", changeLogURL) + + contactSysadmin = "This is an error in the application. Please contact the distributor of this application if this is not you." + + errNonFuncAction = NewExitError("ERROR invalid Action type. "+ + fmt.Sprintf("Must be a func of type `cli.ActionFunc`. %s", contactSysadmin)+ + fmt.Sprintf("See %s", appActionDeprecationURL), 2) + errInvalidActionSignature = NewExitError("ERROR invalid Action signature. "+ + fmt.Sprintf("Must be `cli.ActionFunc`. %s", contactSysadmin)+ + fmt.Sprintf("See %s", appActionDeprecationURL), 2) +) + +// App is the main structure of a cli application. It is recommended that +// an app be created with the cli.NewApp() function +type App struct { + // The name of the program. Defaults to path.Base(os.Args[0]) + Name string + // Full name of command for help, defaults to Name + HelpName string + // Description of the program. + Usage string + // Text to override the USAGE section of help + UsageText string + // Description of the program argument format. + ArgsUsage string + // Version of the program + Version string + // List of commands to execute + Commands []Command + // List of flags to parse + Flags []Flag + // Boolean to enable bash completion commands + EnableBashCompletion bool + // Boolean to hide built-in help command + HideHelp bool + // Boolean to hide built-in version flag and the VERSION section of help + HideVersion bool + // Populate on app startup, only gettable through method Categories() + categories CommandCategories + // An action to execute when the bash-completion flag is set + BashComplete BashCompleteFunc + // An action to execute before any subcommands are run, but after the context is ready + // If a non-nil error is returned, no subcommands are run + Before BeforeFunc + // An action to execute after any subcommands are run, but after the subcommand has finished + // It is run even if Action() panics + After AfterFunc + // The action to execute when no subcommands are specified + Action interface{} + // TODO: replace `Action: interface{}` with `Action: ActionFunc` once some kind + // of deprecation period has passed, maybe? + + // Execute this function if the proper command cannot be found + CommandNotFound CommandNotFoundFunc + // Execute this function if an usage error occurs + OnUsageError OnUsageErrorFunc + // Compilation date + Compiled time.Time + // List of all authors who contributed + Authors []Author + // Copyright of the binary if any + Copyright string + // Name of Author (Note: Use App.Authors, this is deprecated) + Author string + // Email of Author (Note: Use App.Authors, this is deprecated) + Email string + // Writer writer to write output to + Writer io.Writer + // ErrWriter writes error output + ErrWriter io.Writer + // Other custom info + Metadata map[string]interface{} + + didSetup bool +} + +// Tries to find out when this binary was compiled. +// Returns the current time if it fails to find it. +func compileTime() time.Time { + info, err := os.Stat(os.Args[0]) + if err != nil { + return time.Now() + } + return info.ModTime() +} + +// NewApp creates a new cli Application with some reasonable defaults for Name, +// Usage, Version and Action. +func NewApp() *App { + return &App{ + Name: filepath.Base(os.Args[0]), + HelpName: filepath.Base(os.Args[0]), + Usage: "A new cli application", + UsageText: "", + Version: "0.0.0", + BashComplete: DefaultAppComplete, + Action: helpCommand.Action, + Compiled: compileTime(), + Writer: os.Stdout, + } +} + +// Setup runs initialization code to ensure all data structures are ready for +// `Run` or inspection prior to `Run`. It is internally called by `Run`, but +// will return early if setup has already happened. +func (a *App) Setup() { + if a.didSetup { + return + } + + a.didSetup = true + + if a.Author != "" || a.Email != "" { + a.Authors = append(a.Authors, Author{Name: a.Author, Email: a.Email}) + } + + newCmds := []Command{} + for _, c := range a.Commands { + if c.HelpName == "" { + c.HelpName = fmt.Sprintf("%s %s", a.HelpName, c.Name) + } + newCmds = append(newCmds, c) + } + a.Commands = newCmds + + if a.Command(helpCommand.Name) == nil && !a.HideHelp { + a.Commands = append(a.Commands, helpCommand) + if (HelpFlag != BoolFlag{}) { + a.appendFlag(HelpFlag) + } + } + + if a.EnableBashCompletion { + a.appendFlag(BashCompletionFlag) + } + + if !a.HideVersion { + a.appendFlag(VersionFlag) + } + + a.categories = CommandCategories{} + for _, command := range a.Commands { + a.categories = a.categories.AddCommand(command.Category, command) + } + sort.Sort(a.categories) +} + +// Run is the entry point to the cli app. Parses the arguments slice and routes +// to the proper flag/args combination +func (a *App) Run(arguments []string) (err error) { + a.Setup() + + // parse flags + set := flagSet(a.Name, a.Flags) + set.SetOutput(ioutil.Discard) + err = set.Parse(arguments[1:]) + nerr := normalizeFlags(a.Flags, set) + context := NewContext(a, set, nil) + if nerr != nil { + fmt.Fprintln(a.Writer, nerr) + ShowAppHelp(context) + return nerr + } + + if checkCompletions(context) { + return nil + } + + if err != nil { + if a.OnUsageError != nil { + err := a.OnUsageError(context, err, false) + HandleExitCoder(err) + return err + } + fmt.Fprintf(a.Writer, "%s\n\n", "Incorrect Usage.") + ShowAppHelp(context) + return err + } + + if !a.HideHelp && checkHelp(context) { + ShowAppHelp(context) + return nil + } + + if !a.HideVersion && checkVersion(context) { + ShowVersion(context) + return nil + } + + if a.After != nil { + defer func() { + if afterErr := a.After(context); afterErr != nil { + if err != nil { + err = NewMultiError(err, afterErr) + } else { + err = afterErr + } + } + }() + } + + if a.Before != nil { + beforeErr := a.Before(context) + if beforeErr != nil { + fmt.Fprintf(a.Writer, "%v\n\n", beforeErr) + ShowAppHelp(context) + HandleExitCoder(beforeErr) + err = beforeErr + return err + } + } + + args := context.Args() + if args.Present() { + name := args.First() + c := a.Command(name) + if c != nil { + return c.Run(context) + } + } + + // Run default Action + err = HandleAction(a.Action, context) + + HandleExitCoder(err) + return err +} + +// DEPRECATED: Another entry point to the cli app, takes care of passing arguments and error handling +func (a *App) RunAndExitOnError() { + fmt.Fprintf(a.errWriter(), + "DEPRECATED cli.App.RunAndExitOnError. %s See %s\n", + contactSysadmin, runAndExitOnErrorDeprecationURL) + if err := a.Run(os.Args); err != nil { + fmt.Fprintln(a.errWriter(), err) + OsExiter(1) + } +} + +// RunAsSubcommand invokes the subcommand given the context, parses ctx.Args() to +// generate command-specific flags +func (a *App) RunAsSubcommand(ctx *Context) (err error) { + // append help to commands + if len(a.Commands) > 0 { + if a.Command(helpCommand.Name) == nil && !a.HideHelp { + a.Commands = append(a.Commands, helpCommand) + if (HelpFlag != BoolFlag{}) { + a.appendFlag(HelpFlag) + } + } + } + + newCmds := []Command{} + for _, c := range a.Commands { + if c.HelpName == "" { + c.HelpName = fmt.Sprintf("%s %s", a.HelpName, c.Name) + } + newCmds = append(newCmds, c) + } + a.Commands = newCmds + + // append flags + if a.EnableBashCompletion { + a.appendFlag(BashCompletionFlag) + } + + // parse flags + set := flagSet(a.Name, a.Flags) + set.SetOutput(ioutil.Discard) + err = set.Parse(ctx.Args().Tail()) + nerr := normalizeFlags(a.Flags, set) + context := NewContext(a, set, ctx) + + if nerr != nil { + fmt.Fprintln(a.Writer, nerr) + fmt.Fprintln(a.Writer) + if len(a.Commands) > 0 { + ShowSubcommandHelp(context) + } else { + ShowCommandHelp(ctx, context.Args().First()) + } + return nerr + } + + if checkCompletions(context) { + return nil + } + + if err != nil { + if a.OnUsageError != nil { + err = a.OnUsageError(context, err, true) + HandleExitCoder(err) + return err + } + fmt.Fprintf(a.Writer, "%s\n\n", "Incorrect Usage.") + ShowSubcommandHelp(context) + return err + } + + if len(a.Commands) > 0 { + if checkSubcommandHelp(context) { + return nil + } + } else { + if checkCommandHelp(ctx, context.Args().First()) { + return nil + } + } + + if a.After != nil { + defer func() { + afterErr := a.After(context) + if afterErr != nil { + HandleExitCoder(err) + if err != nil { + err = NewMultiError(err, afterErr) + } else { + err = afterErr + } + } + }() + } + + if a.Before != nil { + beforeErr := a.Before(context) + if beforeErr != nil { + HandleExitCoder(beforeErr) + err = beforeErr + return err + } + } + + args := context.Args() + if args.Present() { + name := args.First() + c := a.Command(name) + if c != nil { + return c.Run(context) + } + } + + // Run default Action + err = HandleAction(a.Action, context) + + HandleExitCoder(err) + return err +} + +// Command returns the named command on App. Returns nil if the command does not exist +func (a *App) Command(name string) *Command { + for _, c := range a.Commands { + if c.HasName(name) { + return &c + } + } + + return nil +} + +// Categories returns a slice containing all the categories with the commands they contain +func (a *App) Categories() CommandCategories { + return a.categories +} + +// VisibleCategories returns a slice of categories and commands that are +// Hidden=false +func (a *App) VisibleCategories() []*CommandCategory { + ret := []*CommandCategory{} + for _, category := range a.categories { + if visible := func() *CommandCategory { + for _, command := range category.Commands { + if !command.Hidden { + return category + } + } + return nil + }(); visible != nil { + ret = append(ret, visible) + } + } + return ret +} + +// VisibleCommands returns a slice of the Commands with Hidden=false +func (a *App) VisibleCommands() []Command { + ret := []Command{} + for _, command := range a.Commands { + if !command.Hidden { + ret = append(ret, command) + } + } + return ret +} + +// VisibleFlags returns a slice of the Flags with Hidden=false +func (a *App) VisibleFlags() []Flag { + return visibleFlags(a.Flags) +} + +func (a *App) hasFlag(flag Flag) bool { + for _, f := range a.Flags { + if flag == f { + return true + } + } + + return false +} + +func (a *App) errWriter() io.Writer { + + // When the app ErrWriter is nil use the package level one. + if a.ErrWriter == nil { + return ErrWriter + } + + return a.ErrWriter +} + +func (a *App) appendFlag(flag Flag) { + if !a.hasFlag(flag) { + a.Flags = append(a.Flags, flag) + } +} + +// Author represents someone who has contributed to a cli project. +type Author struct { + Name string // The Authors name + Email string // The Authors email +} + +// String makes Author comply to the Stringer interface, to allow an easy print in the templating process +func (a Author) String() string { + e := "" + if a.Email != "" { + e = "<" + a.Email + "> " + } + + return fmt.Sprintf("%v %v", a.Name, e) +} + +// HandleAction uses ✧✧✧reflection✧✧✧ to figure out if the given Action is an +// ActionFunc, a func with the legacy signature for Action, or some other +// invalid thing. If it's an ActionFunc or a func with the legacy signature for +// Action, the func is run! +func HandleAction(action interface{}, context *Context) (err error) { + defer func() { + if r := recover(); r != nil { + // Try to detect a known reflection error from *this scope*, rather than + // swallowing all panics that may happen when calling an Action func. + s := fmt.Sprintf("%v", r) + if strings.HasPrefix(s, "reflect: ") && strings.Contains(s, "too many input arguments") { + err = NewExitError(fmt.Sprintf("ERROR unknown Action error: %v. See %s", r, appActionDeprecationURL), 2) + } else { + panic(r) + } + } + }() + + if reflect.TypeOf(action).Kind() != reflect.Func { + return errNonFuncAction + } + + vals := reflect.ValueOf(action).Call([]reflect.Value{reflect.ValueOf(context)}) + + if len(vals) == 0 { + fmt.Fprintf(ErrWriter, + "DEPRECATED Action signature. Must be `cli.ActionFunc`. %s See %s\n", + contactSysadmin, appActionDeprecationURL) + return nil + } + + if len(vals) > 1 { + return errInvalidActionSignature + } + + if retErr, ok := vals[0].Interface().(error); vals[0].IsValid() && ok { + return retErr + } + + return err +} diff --git a/vendor/github.com/urfave/cli/appveyor.yml b/vendor/github.com/urfave/cli/appveyor.yml new file mode 100644 index 00000000..173086e5 --- /dev/null +++ b/vendor/github.com/urfave/cli/appveyor.yml @@ -0,0 +1,25 @@ +version: "{build}" + +os: Windows Server 2012 R2 + +clone_folder: c:\gopath\src\github.com\urfave\cli + +environment: + GOPATH: C:\gopath + GOVERSION: 1.6 + PYTHON: C:\Python27-x64 + PYTHON_VERSION: 2.7.x + PYTHON_ARCH: 64 + GFMXR_DEBUG: 1 + +install: +- set PATH=%GOPATH%\bin;C:\go\bin;%PATH% +- go version +- go env +- go get github.com/urfave/gfmxr/... +- go get -v -t ./... + +build_script: +- python runtests vet +- python runtests test +- python runtests gfmxr diff --git a/vendor/github.com/urfave/cli/category.go b/vendor/github.com/urfave/cli/category.go new file mode 100644 index 00000000..1a605502 --- /dev/null +++ b/vendor/github.com/urfave/cli/category.go @@ -0,0 +1,44 @@ +package cli + +// CommandCategories is a slice of *CommandCategory. +type CommandCategories []*CommandCategory + +// CommandCategory is a category containing commands. +type CommandCategory struct { + Name string + Commands Commands +} + +func (c CommandCategories) Less(i, j int) bool { + return c[i].Name < c[j].Name +} + +func (c CommandCategories) Len() int { + return len(c) +} + +func (c CommandCategories) Swap(i, j int) { + c[i], c[j] = c[j], c[i] +} + +// AddCommand adds a command to a category. +func (c CommandCategories) AddCommand(category string, command Command) CommandCategories { + for _, commandCategory := range c { + if commandCategory.Name == category { + commandCategory.Commands = append(commandCategory.Commands, command) + return c + } + } + return append(c, &CommandCategory{Name: category, Commands: []Command{command}}) +} + +// VisibleCommands returns a slice of the Commands with Hidden=false +func (c *CommandCategory) VisibleCommands() []Command { + ret := []Command{} + for _, command := range c.Commands { + if !command.Hidden { + ret = append(ret, command) + } + } + return ret +} diff --git a/vendor/github.com/urfave/cli/cli.go b/vendor/github.com/urfave/cli/cli.go new file mode 100644 index 00000000..f0440c56 --- /dev/null +++ b/vendor/github.com/urfave/cli/cli.go @@ -0,0 +1,19 @@ +// Package cli provides a minimal framework for creating and organizing command line +// Go applications. cli is designed to be easy to understand and write, the most simple +// cli application can be written as follows: +// func main() { +// cli.NewApp().Run(os.Args) +// } +// +// Of course this application does not do much, so let's make this an actual application: +// func main() { +// app := cli.NewApp() +// app.Name = "greet" +// app.Usage = "say a greeting" +// app.Action = func(c *cli.Context) error { +// println("Greetings") +// } +// +// app.Run(os.Args) +// } +package cli diff --git a/vendor/github.com/urfave/cli/command.go b/vendor/github.com/urfave/cli/command.go new file mode 100644 index 00000000..8950ccae --- /dev/null +++ b/vendor/github.com/urfave/cli/command.go @@ -0,0 +1,279 @@ +package cli + +import ( + "fmt" + "io/ioutil" + "sort" + "strings" +) + +// Command is a subcommand for a cli.App. +type Command struct { + // The name of the command + Name string + // short name of the command. Typically one character (deprecated, use `Aliases`) + ShortName string + // A list of aliases for the command + Aliases []string + // A short description of the usage of this command + Usage string + // Custom text to show on USAGE section of help + UsageText string + // A longer explanation of how the command works + Description string + // A short description of the arguments of this command + ArgsUsage string + // The category the command is part of + Category string + // The function to call when checking for bash command completions + BashComplete BashCompleteFunc + // An action to execute before any sub-subcommands are run, but after the context is ready + // If a non-nil error is returned, no sub-subcommands are run + Before BeforeFunc + // An action to execute after any subcommands are run, but after the subcommand has finished + // It is run even if Action() panics + After AfterFunc + // The function to call when this command is invoked + Action interface{} + // TODO: replace `Action: interface{}` with `Action: ActionFunc` once some kind + // of deprecation period has passed, maybe? + + // Execute this function if a usage error occurs. + OnUsageError OnUsageErrorFunc + // List of child commands + Subcommands Commands + // List of flags to parse + Flags []Flag + // Treat all flags as normal arguments if true + SkipFlagParsing bool + // Boolean to hide built-in help command + HideHelp bool + // Boolean to hide this command from help or completion + Hidden bool + + // Full name of command for help, defaults to full command name, including parent commands. + HelpName string + commandNamePath []string +} + +// FullName returns the full name of the command. +// For subcommands this ensures that parent commands are part of the command path +func (c Command) FullName() string { + if c.commandNamePath == nil { + return c.Name + } + return strings.Join(c.commandNamePath, " ") +} + +// Commands is a slice of Command +type Commands []Command + +// Run invokes the command given the context, parses ctx.Args() to generate command-specific flags +func (c Command) Run(ctx *Context) (err error) { + if len(c.Subcommands) > 0 { + return c.startApp(ctx) + } + + if !c.HideHelp && (HelpFlag != BoolFlag{}) { + // append help to flags + c.Flags = append( + c.Flags, + HelpFlag, + ) + } + + if ctx.App.EnableBashCompletion { + c.Flags = append(c.Flags, BashCompletionFlag) + } + + set := flagSet(c.Name, c.Flags) + set.SetOutput(ioutil.Discard) + + if !c.SkipFlagParsing { + firstFlagIndex := -1 + terminatorIndex := -1 + for index, arg := range ctx.Args() { + if arg == "--" { + terminatorIndex = index + break + } else if arg == "-" { + // Do nothing. A dash alone is not really a flag. + continue + } else if strings.HasPrefix(arg, "-") && firstFlagIndex == -1 { + firstFlagIndex = index + } + } + + if firstFlagIndex > -1 { + args := ctx.Args() + regularArgs := make([]string, len(args[1:firstFlagIndex])) + copy(regularArgs, args[1:firstFlagIndex]) + + var flagArgs []string + if terminatorIndex > -1 { + flagArgs = args[firstFlagIndex:terminatorIndex] + regularArgs = append(regularArgs, args[terminatorIndex:]...) + } else { + flagArgs = args[firstFlagIndex:] + } + + err = set.Parse(append(flagArgs, regularArgs...)) + } else { + err = set.Parse(ctx.Args().Tail()) + } + } else { + if c.SkipFlagParsing { + err = set.Parse(append([]string{"--"}, ctx.Args().Tail()...)) + } + } + + if err != nil { + if c.OnUsageError != nil { + err := c.OnUsageError(ctx, err, false) + HandleExitCoder(err) + return err + } + fmt.Fprintln(ctx.App.Writer, "Incorrect Usage.") + fmt.Fprintln(ctx.App.Writer) + ShowCommandHelp(ctx, c.Name) + return err + } + + nerr := normalizeFlags(c.Flags, set) + if nerr != nil { + fmt.Fprintln(ctx.App.Writer, nerr) + fmt.Fprintln(ctx.App.Writer) + ShowCommandHelp(ctx, c.Name) + return nerr + } + + context := NewContext(ctx.App, set, ctx) + + if checkCommandCompletions(context, c.Name) { + return nil + } + + if checkCommandHelp(context, c.Name) { + return nil + } + + if c.After != nil { + defer func() { + afterErr := c.After(context) + if afterErr != nil { + HandleExitCoder(err) + if err != nil { + err = NewMultiError(err, afterErr) + } else { + err = afterErr + } + } + }() + } + + if c.Before != nil { + err = c.Before(context) + if err != nil { + fmt.Fprintln(ctx.App.Writer, err) + fmt.Fprintln(ctx.App.Writer) + ShowCommandHelp(ctx, c.Name) + HandleExitCoder(err) + return err + } + } + + context.Command = c + err = HandleAction(c.Action, context) + + if err != nil { + HandleExitCoder(err) + } + return err +} + +// Names returns the names including short names and aliases. +func (c Command) Names() []string { + names := []string{c.Name} + + if c.ShortName != "" { + names = append(names, c.ShortName) + } + + return append(names, c.Aliases...) +} + +// HasName returns true if Command.Name or Command.ShortName matches given name +func (c Command) HasName(name string) bool { + for _, n := range c.Names() { + if n == name { + return true + } + } + return false +} + +func (c Command) startApp(ctx *Context) error { + app := NewApp() + app.Metadata = ctx.App.Metadata + // set the name and usage + app.Name = fmt.Sprintf("%s %s", ctx.App.Name, c.Name) + if c.HelpName == "" { + app.HelpName = c.HelpName + } else { + app.HelpName = app.Name + } + + if c.Description != "" { + app.Usage = c.Description + } else { + app.Usage = c.Usage + } + + // set CommandNotFound + app.CommandNotFound = ctx.App.CommandNotFound + + // set the flags and commands + app.Commands = c.Subcommands + app.Flags = c.Flags + app.HideHelp = c.HideHelp + + app.Version = ctx.App.Version + app.HideVersion = ctx.App.HideVersion + app.Compiled = ctx.App.Compiled + app.Author = ctx.App.Author + app.Email = ctx.App.Email + app.Writer = ctx.App.Writer + + app.categories = CommandCategories{} + for _, command := range c.Subcommands { + app.categories = app.categories.AddCommand(command.Category, command) + } + + sort.Sort(app.categories) + + // bash completion + app.EnableBashCompletion = ctx.App.EnableBashCompletion + if c.BashComplete != nil { + app.BashComplete = c.BashComplete + } + + // set the actions + app.Before = c.Before + app.After = c.After + if c.Action != nil { + app.Action = c.Action + } else { + app.Action = helpSubcommand.Action + } + + for index, cc := range app.Commands { + app.Commands[index].commandNamePath = []string{c.Name, cc.Name} + } + + return app.RunAsSubcommand(ctx) +} + +// VisibleFlags returns a slice of the Flags with Hidden=false +func (c Command) VisibleFlags() []Flag { + return visibleFlags(c.Flags) +} diff --git a/vendor/github.com/urfave/cli/context.go b/vendor/github.com/urfave/cli/context.go new file mode 100644 index 00000000..879bae5e --- /dev/null +++ b/vendor/github.com/urfave/cli/context.go @@ -0,0 +1,549 @@ +package cli + +import ( + "errors" + "flag" + "strconv" + "strings" + "time" +) + +// Context is a type that is passed through to +// each Handler action in a cli application. Context +// can be used to retrieve context-specific Args and +// parsed command-line options. +type Context struct { + App *App + Command Command + flagSet *flag.FlagSet + setFlags map[string]bool + globalSetFlags map[string]bool + parentContext *Context +} + +// NewContext creates a new context. For use in when invoking an App or Command action. +func NewContext(app *App, set *flag.FlagSet, parentCtx *Context) *Context { + return &Context{App: app, flagSet: set, parentContext: parentCtx} +} + +// Int looks up the value of a local int flag, returns 0 if no int flag exists +func (c *Context) Int(name string) int { + return lookupInt(name, c.flagSet) +} + +// Int64 looks up the value of a local int flag, returns 0 if no int flag exists +func (c *Context) Int64(name string) int64 { + return lookupInt64(name, c.flagSet) +} + +// Uint looks up the value of a local int flag, returns 0 if no int flag exists +func (c *Context) Uint(name string) uint { + return lookupUint(name, c.flagSet) +} + +// Uint64 looks up the value of a local int flag, returns 0 if no int flag exists +func (c *Context) Uint64(name string) uint64 { + return lookupUint64(name, c.flagSet) +} + +// Duration looks up the value of a local time.Duration flag, returns 0 if no +// time.Duration flag exists +func (c *Context) Duration(name string) time.Duration { + return lookupDuration(name, c.flagSet) +} + +// Float64 looks up the value of a local float64 flag, returns 0 if no float64 +// flag exists +func (c *Context) Float64(name string) float64 { + return lookupFloat64(name, c.flagSet) +} + +// Bool looks up the value of a local bool flag, returns false if no bool flag exists +func (c *Context) Bool(name string) bool { + return lookupBool(name, c.flagSet) +} + +// BoolT looks up the value of a local boolT flag, returns false if no bool flag exists +func (c *Context) BoolT(name string) bool { + return lookupBoolT(name, c.flagSet) +} + +// String looks up the value of a local string flag, returns "" if no string flag exists +func (c *Context) String(name string) string { + return lookupString(name, c.flagSet) +} + +// StringSlice looks up the value of a local string slice flag, returns nil if no +// string slice flag exists +func (c *Context) StringSlice(name string) []string { + return lookupStringSlice(name, c.flagSet) +} + +// IntSlice looks up the value of a local int slice flag, returns nil if no int +// slice flag exists +func (c *Context) IntSlice(name string) []int { + return lookupIntSlice(name, c.flagSet) +} + +// Int64Slice looks up the value of a local int slice flag, returns nil if no int +// slice flag exists +func (c *Context) Int64Slice(name string) []int64 { + return lookupInt64Slice(name, c.flagSet) +} + +// Generic looks up the value of a local generic flag, returns nil if no generic +// flag exists +func (c *Context) Generic(name string) interface{} { + return lookupGeneric(name, c.flagSet) +} + +// GlobalInt looks up the value of a global int flag, returns 0 if no int flag exists +func (c *Context) GlobalInt(name string) int { + if fs := lookupGlobalFlagSet(name, c); fs != nil { + return lookupInt(name, fs) + } + return 0 +} + +// GlobalInt64 looks up the value of a global int flag, returns 0 if no int flag exists +func (c *Context) GlobalInt64(name string) int64 { + if fs := lookupGlobalFlagSet(name, c); fs != nil { + return lookupInt64(name, fs) + } + return 0 +} + +// GlobalUint looks up the value of a global int flag, returns 0 if no int flag exists +func (c *Context) GlobalUint(name string) uint { + if fs := lookupGlobalFlagSet(name, c); fs != nil { + return lookupUint(name, fs) + } + return 0 +} + +// GlobalUint64 looks up the value of a global int flag, returns 0 if no int flag exists +func (c *Context) GlobalUint64(name string) uint64 { + if fs := lookupGlobalFlagSet(name, c); fs != nil { + return lookupUint64(name, fs) + } + return 0 +} + +// GlobalFloat64 looks up the value of a global float64 flag, returns float64(0) +// if no float64 flag exists +func (c *Context) GlobalFloat64(name string) float64 { + if fs := lookupGlobalFlagSet(name, c); fs != nil { + return lookupFloat64(name, fs) + } + return float64(0) +} + +// GlobalDuration looks up the value of a global time.Duration flag, returns 0 +// if no time.Duration flag exists +func (c *Context) GlobalDuration(name string) time.Duration { + if fs := lookupGlobalFlagSet(name, c); fs != nil { + return lookupDuration(name, fs) + } + return 0 +} + +// GlobalBool looks up the value of a global bool flag, returns false if no bool +// flag exists +func (c *Context) GlobalBool(name string) bool { + if fs := lookupGlobalFlagSet(name, c); fs != nil { + return lookupBool(name, fs) + } + return false +} + +// GlobalBoolT looks up the value of a global bool flag, returns true if no bool +// flag exists +func (c *Context) GlobalBoolT(name string) bool { + if fs := lookupGlobalFlagSet(name, c); fs != nil { + return lookupBoolT(name, fs) + } + return false +} + +// GlobalString looks up the value of a global string flag, returns "" if no +// string flag exists +func (c *Context) GlobalString(name string) string { + if fs := lookupGlobalFlagSet(name, c); fs != nil { + return lookupString(name, fs) + } + return "" +} + +// GlobalStringSlice looks up the value of a global string slice flag, returns +// nil if no string slice flag exists +func (c *Context) GlobalStringSlice(name string) []string { + if fs := lookupGlobalFlagSet(name, c); fs != nil { + return lookupStringSlice(name, fs) + } + return nil +} + +// GlobalIntSlice looks up the value of a global int slice flag, returns nil if +// no int slice flag exists +func (c *Context) GlobalIntSlice(name string) []int { + if fs := lookupGlobalFlagSet(name, c); fs != nil { + return lookupIntSlice(name, fs) + } + return nil +} + +// GlobalInt64Slice looks up the value of a global int slice flag, returns nil if +// no int slice flag exists +func (c *Context) GlobalInt64Slice(name string) []int64 { + if fs := lookupGlobalFlagSet(name, c); fs != nil { + return lookupInt64Slice(name, fs) + } + return nil +} + +// GlobalGeneric looks up the value of a global generic flag, returns nil if no +// generic flag exists +func (c *Context) GlobalGeneric(name string) interface{} { + if fs := lookupGlobalFlagSet(name, c); fs != nil { + return lookupGeneric(name, fs) + } + return nil +} + +// NumFlags returns the number of flags set +func (c *Context) NumFlags() int { + return c.flagSet.NFlag() +} + +// Set sets a context flag to a value. +func (c *Context) Set(name, value string) error { + return c.flagSet.Set(name, value) +} + +// GlobalSet sets a context flag to a value on the global flagset +func (c *Context) GlobalSet(name, value string) error { + return globalContext(c).flagSet.Set(name, value) +} + +// IsSet determines if the flag was actually set +func (c *Context) IsSet(name string) bool { + if c.setFlags == nil { + c.setFlags = make(map[string]bool) + c.flagSet.Visit(func(f *flag.Flag) { + c.setFlags[f.Name] = true + }) + } + return c.setFlags[name] == true +} + +// GlobalIsSet determines if the global flag was actually set +func (c *Context) GlobalIsSet(name string) bool { + if c.globalSetFlags == nil { + c.globalSetFlags = make(map[string]bool) + ctx := c + if ctx.parentContext != nil { + ctx = ctx.parentContext + } + for ; ctx != nil && c.globalSetFlags[name] == false; ctx = ctx.parentContext { + ctx.flagSet.Visit(func(f *flag.Flag) { + c.globalSetFlags[f.Name] = true + }) + } + } + return c.globalSetFlags[name] +} + +// FlagNames returns a slice of flag names used in this context. +func (c *Context) FlagNames() (names []string) { + for _, flag := range c.Command.Flags { + name := strings.Split(flag.GetName(), ",")[0] + if name == "help" { + continue + } + names = append(names, name) + } + return +} + +// GlobalFlagNames returns a slice of global flag names used by the app. +func (c *Context) GlobalFlagNames() (names []string) { + for _, flag := range c.App.Flags { + name := strings.Split(flag.GetName(), ",")[0] + if name == "help" || name == "version" { + continue + } + names = append(names, name) + } + return +} + +// Parent returns the parent context, if any +func (c *Context) Parent() *Context { + return c.parentContext +} + +// Args contains apps console arguments +type Args []string + +// Args returns the command line arguments associated with the context. +func (c *Context) Args() Args { + args := Args(c.flagSet.Args()) + return args +} + +// NArg returns the number of the command line arguments. +func (c *Context) NArg() int { + return len(c.Args()) +} + +// Get returns the nth argument, or else a blank string +func (a Args) Get(n int) string { + if len(a) > n { + return a[n] + } + return "" +} + +// First returns the first argument, or else a blank string +func (a Args) First() string { + return a.Get(0) +} + +// Tail returns the rest of the arguments (not the first one) +// or else an empty string slice +func (a Args) Tail() []string { + if len(a) >= 2 { + return []string(a)[1:] + } + return []string{} +} + +// Present checks if there are any arguments present +func (a Args) Present() bool { + return len(a) != 0 +} + +// Swap swaps arguments at the given indexes +func (a Args) Swap(from, to int) error { + if from >= len(a) || to >= len(a) { + return errors.New("index out of range") + } + a[from], a[to] = a[to], a[from] + return nil +} + +func globalContext(ctx *Context) *Context { + if ctx == nil { + return nil + } + + for { + if ctx.parentContext == nil { + return ctx + } + ctx = ctx.parentContext + } +} + +func lookupGlobalFlagSet(name string, ctx *Context) *flag.FlagSet { + if ctx.parentContext != nil { + ctx = ctx.parentContext + } + for ; ctx != nil; ctx = ctx.parentContext { + if f := ctx.flagSet.Lookup(name); f != nil { + return ctx.flagSet + } + } + return nil +} + +func lookupInt(name string, set *flag.FlagSet) int { + f := set.Lookup(name) + if f != nil { + val, err := strconv.ParseInt(f.Value.String(), 0, 64) + if err != nil { + return 0 + } + return int(val) + } + + return 0 +} + +func lookupInt64(name string, set *flag.FlagSet) int64 { + f := set.Lookup(name) + if f != nil { + val, err := strconv.ParseInt(f.Value.String(), 0, 64) + if err != nil { + return 0 + } + return val + } + + return 0 +} + +func lookupUint(name string, set *flag.FlagSet) uint { + f := set.Lookup(name) + if f != nil { + val, err := strconv.ParseUint(f.Value.String(), 0, 64) + if err != nil { + return 0 + } + return uint(val) + } + + return 0 +} + +func lookupUint64(name string, set *flag.FlagSet) uint64 { + f := set.Lookup(name) + if f != nil { + val, err := strconv.ParseUint(f.Value.String(), 0, 64) + if err != nil { + return 0 + } + return val + } + + return 0 +} + +func lookupDuration(name string, set *flag.FlagSet) time.Duration { + f := set.Lookup(name) + if f != nil { + val, err := time.ParseDuration(f.Value.String()) + if err == nil { + return val + } + } + + return 0 +} + +func lookupFloat64(name string, set *flag.FlagSet) float64 { + f := set.Lookup(name) + if f != nil { + val, err := strconv.ParseFloat(f.Value.String(), 64) + if err != nil { + return 0 + } + return val + } + + return 0 +} + +func lookupString(name string, set *flag.FlagSet) string { + f := set.Lookup(name) + if f != nil { + return f.Value.String() + } + + return "" +} + +func lookupStringSlice(name string, set *flag.FlagSet) []string { + f := set.Lookup(name) + if f != nil { + return (f.Value.(*StringSlice)).Value() + + } + + return nil +} + +func lookupIntSlice(name string, set *flag.FlagSet) []int { + f := set.Lookup(name) + if f != nil { + return (f.Value.(*IntSlice)).Value() + + } + + return nil +} + +func lookupInt64Slice(name string, set *flag.FlagSet) []int64 { + f := set.Lookup(name) + if f != nil { + return (f.Value.(*Int64Slice)).Value() + + } + + return nil +} + +func lookupGeneric(name string, set *flag.FlagSet) interface{} { + f := set.Lookup(name) + if f != nil { + return f.Value + } + return nil +} + +func lookupBool(name string, set *flag.FlagSet) bool { + f := set.Lookup(name) + if f != nil { + val, err := strconv.ParseBool(f.Value.String()) + if err != nil { + return false + } + return val + } + + return false +} + +func lookupBoolT(name string, set *flag.FlagSet) bool { + f := set.Lookup(name) + if f != nil { + val, err := strconv.ParseBool(f.Value.String()) + if err != nil { + return true + } + return val + } + + return false +} + +func copyFlag(name string, ff *flag.Flag, set *flag.FlagSet) { + switch ff.Value.(type) { + case *StringSlice: + default: + set.Set(name, ff.Value.String()) + } +} + +func normalizeFlags(flags []Flag, set *flag.FlagSet) error { + visited := make(map[string]bool) + set.Visit(func(f *flag.Flag) { + visited[f.Name] = true + }) + for _, f := range flags { + parts := strings.Split(f.GetName(), ",") + if len(parts) == 1 { + continue + } + var ff *flag.Flag + for _, name := range parts { + name = strings.Trim(name, " ") + if visited[name] { + if ff != nil { + return errors.New("Cannot use two forms of the same flag: " + name + " " + ff.Name) + } + ff = set.Lookup(name) + } + } + if ff == nil { + continue + } + for _, name := range parts { + name = strings.Trim(name, " ") + if !visited[name] { + copyFlag(name, ff, set) + } + } + } + return nil +} diff --git a/vendor/github.com/urfave/cli/errors.go b/vendor/github.com/urfave/cli/errors.go new file mode 100644 index 00000000..ea551be1 --- /dev/null +++ b/vendor/github.com/urfave/cli/errors.go @@ -0,0 +1,92 @@ +package cli + +import ( + "fmt" + "io" + "os" + "strings" +) + +// OsExiter is the function used when the app exits. If not set defaults to os.Exit. +var OsExiter = os.Exit + +// ErrWriter is used to write errors to the user. This can be anything +// implementing the io.Writer interface and defaults to os.Stderr. +var ErrWriter io.Writer = os.Stderr + +// MultiError is an error that wraps multiple errors. +type MultiError struct { + Errors []error +} + +// NewMultiError creates a new MultiError. Pass in one or more errors. +func NewMultiError(err ...error) MultiError { + return MultiError{Errors: err} +} + +// Error implents the error interface. +func (m MultiError) Error() string { + errs := make([]string, len(m.Errors)) + for i, err := range m.Errors { + errs[i] = err.Error() + } + + return strings.Join(errs, "\n") +} + +// ExitCoder is the interface checked by `App` and `Command` for a custom exit +// code +type ExitCoder interface { + error + ExitCode() int +} + +// ExitError fulfills both the builtin `error` interface and `ExitCoder` +type ExitError struct { + exitCode int + message string +} + +// NewExitError makes a new *ExitError +func NewExitError(message string, exitCode int) *ExitError { + return &ExitError{ + exitCode: exitCode, + message: message, + } +} + +// Error returns the string message, fulfilling the interface required by +// `error` +func (ee *ExitError) Error() string { + return ee.message +} + +// ExitCode returns the exit code, fulfilling the interface required by +// `ExitCoder` +func (ee *ExitError) ExitCode() int { + return ee.exitCode +} + +// HandleExitCoder checks if the error fulfills the ExitCoder interface, and if +// so prints the error to stderr (if it is non-empty) and calls OsExiter with the +// given exit code. If the given error is a MultiError, then this func is +// called on all members of the Errors slice. +func HandleExitCoder(err error) { + if err == nil { + return + } + + if exitErr, ok := err.(ExitCoder); ok { + if err.Error() != "" { + fmt.Fprintln(ErrWriter, err) + } + OsExiter(exitErr.ExitCode()) + return + } + + if multiErr, ok := err.(MultiError); ok { + for _, merr := range multiErr.Errors { + HandleExitCoder(merr) + } + } +} diff --git a/vendor/github.com/urfave/cli/flag.go b/vendor/github.com/urfave/cli/flag.go new file mode 100644 index 00000000..f8a28d11 --- /dev/null +++ b/vendor/github.com/urfave/cli/flag.go @@ -0,0 +1,882 @@ +package cli + +import ( + "flag" + "fmt" + "os" + "reflect" + "runtime" + "strconv" + "strings" + "time" +) + +const defaultPlaceholder = "value" + +// BashCompletionFlag enables bash-completion for all commands and subcommands +var BashCompletionFlag = BoolFlag{ + Name: "generate-bash-completion", + Hidden: true, +} + +// VersionFlag prints the version for the application +var VersionFlag = BoolFlag{ + Name: "version, v", + Usage: "print the version", +} + +// HelpFlag prints the help for all commands and subcommands +// Set to the zero value (BoolFlag{}) to disable flag -- keeps subcommand +// unless HideHelp is set to true) +var HelpFlag = BoolFlag{ + Name: "help, h", + Usage: "show help", +} + +// FlagStringer converts a flag definition to a string. This is used by help +// to display a flag. +var FlagStringer FlagStringFunc = stringifyFlag + +// Flag is a common interface related to parsing flags in cli. +// For more advanced flag parsing techniques, it is recommended that +// this interface be implemented. +type Flag interface { + fmt.Stringer + // Apply Flag settings to the given flag set + Apply(*flag.FlagSet) + GetName() string +} + +func flagSet(name string, flags []Flag) *flag.FlagSet { + set := flag.NewFlagSet(name, flag.ContinueOnError) + + for _, f := range flags { + f.Apply(set) + } + return set +} + +func eachName(longName string, fn func(string)) { + parts := strings.Split(longName, ",") + for _, name := range parts { + name = strings.Trim(name, " ") + fn(name) + } +} + +// Generic is a generic parseable type identified by a specific flag +type Generic interface { + Set(value string) error + String() string +} + +// GenericFlag is the flag type for types implementing Generic +type GenericFlag struct { + Name string + Value Generic + Usage string + EnvVar string + Hidden bool +} + +// String returns the string representation of the generic flag to display the +// help text to the user (uses the String() method of the generic flag to show +// the value) +func (f GenericFlag) String() string { + return FlagStringer(f) +} + +// Apply takes the flagset and calls Set on the generic flag with the value +// provided by the user for parsing by the flag +func (f GenericFlag) Apply(set *flag.FlagSet) { + val := f.Value + if f.EnvVar != "" { + for _, envVar := range strings.Split(f.EnvVar, ",") { + envVar = strings.TrimSpace(envVar) + if envVal := os.Getenv(envVar); envVal != "" { + val.Set(envVal) + break + } + } + } + + eachName(f.Name, func(name string) { + set.Var(f.Value, name, f.Usage) + }) +} + +// GetName returns the name of a flag. +func (f GenericFlag) GetName() string { + return f.Name +} + +// StringSlice is an opaque type for []string to satisfy flag.Value +type StringSlice []string + +// Set appends the string value to the list of values +func (f *StringSlice) Set(value string) error { + *f = append(*f, value) + return nil +} + +// String returns a readable representation of this value (for usage defaults) +func (f *StringSlice) String() string { + return fmt.Sprintf("%s", *f) +} + +// Value returns the slice of strings set by this flag +func (f *StringSlice) Value() []string { + return *f +} + +// StringSliceFlag is a string flag that can be specified multiple times on the +// command-line +type StringSliceFlag struct { + Name string + Value *StringSlice + Usage string + EnvVar string + Hidden bool +} + +// String returns the usage +func (f StringSliceFlag) String() string { + return FlagStringer(f) +} + +// Apply populates the flag given the flag set and environment +func (f StringSliceFlag) Apply(set *flag.FlagSet) { + if f.EnvVar != "" { + for _, envVar := range strings.Split(f.EnvVar, ",") { + envVar = strings.TrimSpace(envVar) + if envVal := os.Getenv(envVar); envVal != "" { + newVal := &StringSlice{} + for _, s := range strings.Split(envVal, ",") { + s = strings.TrimSpace(s) + newVal.Set(s) + } + f.Value = newVal + break + } + } + } + + eachName(f.Name, func(name string) { + if f.Value == nil { + f.Value = &StringSlice{} + } + set.Var(f.Value, name, f.Usage) + }) +} + +// GetName returns the name of a flag. +func (f StringSliceFlag) GetName() string { + return f.Name +} + +// IntSlice is an opaque type for []int to satisfy flag.Value +type IntSlice []int + +// Set parses the value into an integer and appends it to the list of values +func (f *IntSlice) Set(value string) error { + tmp, err := strconv.Atoi(value) + if err != nil { + return err + } + *f = append(*f, tmp) + return nil +} + +// String returns a readable representation of this value (for usage defaults) +func (f *IntSlice) String() string { + return fmt.Sprintf("%#v", *f) +} + +// Value returns the slice of ints set by this flag +func (f *IntSlice) Value() []int { + return *f +} + +// IntSliceFlag is an int flag that can be specified multiple times on the +// command-line +type IntSliceFlag struct { + Name string + Value *IntSlice + Usage string + EnvVar string + Hidden bool +} + +// String returns the usage +func (f IntSliceFlag) String() string { + return FlagStringer(f) +} + +// Apply populates the flag given the flag set and environment +func (f IntSliceFlag) Apply(set *flag.FlagSet) { + if f.EnvVar != "" { + for _, envVar := range strings.Split(f.EnvVar, ",") { + envVar = strings.TrimSpace(envVar) + if envVal := os.Getenv(envVar); envVal != "" { + newVal := &IntSlice{} + for _, s := range strings.Split(envVal, ",") { + s = strings.TrimSpace(s) + err := newVal.Set(s) + if err != nil { + fmt.Fprintf(ErrWriter, err.Error()) + } + } + f.Value = newVal + break + } + } + } + + eachName(f.Name, func(name string) { + if f.Value == nil { + f.Value = &IntSlice{} + } + set.Var(f.Value, name, f.Usage) + }) +} + +// GetName returns the name of the flag. +func (f IntSliceFlag) GetName() string { + return f.Name +} + +// Int64Slice is an opaque type for []int to satisfy flag.Value +type Int64Slice []int64 + +// Set parses the value into an integer and appends it to the list of values +func (f *Int64Slice) Set(value string) error { + tmp, err := strconv.ParseInt(value, 10, 64) + if err != nil { + return err + } + *f = append(*f, tmp) + return nil +} + +// String returns a readable representation of this value (for usage defaults) +func (f *Int64Slice) String() string { + return fmt.Sprintf("%#v", *f) +} + +// Value returns the slice of ints set by this flag +func (f *Int64Slice) Value() []int64 { + return *f +} + +// Int64SliceFlag is an int flag that can be specified multiple times on the +// command-line +type Int64SliceFlag struct { + Name string + Value *Int64Slice + Usage string + EnvVar string + Hidden bool +} + +// String returns the usage +func (f Int64SliceFlag) String() string { + return FlagStringer(f) +} + +// Apply populates the flag given the flag set and environment +func (f Int64SliceFlag) Apply(set *flag.FlagSet) { + if f.EnvVar != "" { + for _, envVar := range strings.Split(f.EnvVar, ",") { + envVar = strings.TrimSpace(envVar) + if envVal := os.Getenv(envVar); envVal != "" { + newVal := &Int64Slice{} + for _, s := range strings.Split(envVal, ",") { + s = strings.TrimSpace(s) + err := newVal.Set(s) + if err != nil { + fmt.Fprintf(ErrWriter, err.Error()) + } + } + f.Value = newVal + break + } + } + } + + eachName(f.Name, func(name string) { + if f.Value == nil { + f.Value = &Int64Slice{} + } + set.Var(f.Value, name, f.Usage) + }) +} + +// GetName returns the name of the flag. +func (f Int64SliceFlag) GetName() string { + return f.Name +} + +// BoolFlag is a switch that defaults to false +type BoolFlag struct { + Name string + Usage string + EnvVar string + Destination *bool + Hidden bool +} + +// String returns a readable representation of this value (for usage defaults) +func (f BoolFlag) String() string { + return FlagStringer(f) +} + +// Apply populates the flag given the flag set and environment +func (f BoolFlag) Apply(set *flag.FlagSet) { + val := false + if f.EnvVar != "" { + for _, envVar := range strings.Split(f.EnvVar, ",") { + envVar = strings.TrimSpace(envVar) + if envVal := os.Getenv(envVar); envVal != "" { + envValBool, err := strconv.ParseBool(envVal) + if err == nil { + val = envValBool + } + break + } + } + } + + eachName(f.Name, func(name string) { + if f.Destination != nil { + set.BoolVar(f.Destination, name, val, f.Usage) + return + } + set.Bool(name, val, f.Usage) + }) +} + +// GetName returns the name of the flag. +func (f BoolFlag) GetName() string { + return f.Name +} + +// BoolTFlag this represents a boolean flag that is true by default, but can +// still be set to false by --some-flag=false +type BoolTFlag struct { + Name string + Usage string + EnvVar string + Destination *bool + Hidden bool +} + +// String returns a readable representation of this value (for usage defaults) +func (f BoolTFlag) String() string { + return FlagStringer(f) +} + +// Apply populates the flag given the flag set and environment +func (f BoolTFlag) Apply(set *flag.FlagSet) { + val := true + if f.EnvVar != "" { + for _, envVar := range strings.Split(f.EnvVar, ",") { + envVar = strings.TrimSpace(envVar) + if envVal := os.Getenv(envVar); envVal != "" { + envValBool, err := strconv.ParseBool(envVal) + if err == nil { + val = envValBool + break + } + } + } + } + + eachName(f.Name, func(name string) { + if f.Destination != nil { + set.BoolVar(f.Destination, name, val, f.Usage) + return + } + set.Bool(name, val, f.Usage) + }) +} + +// GetName returns the name of the flag. +func (f BoolTFlag) GetName() string { + return f.Name +} + +// StringFlag represents a flag that takes as string value +type StringFlag struct { + Name string + Value string + Usage string + EnvVar string + Destination *string + Hidden bool +} + +// String returns the usage +func (f StringFlag) String() string { + return FlagStringer(f) +} + +// Apply populates the flag given the flag set and environment +func (f StringFlag) Apply(set *flag.FlagSet) { + if f.EnvVar != "" { + for _, envVar := range strings.Split(f.EnvVar, ",") { + envVar = strings.TrimSpace(envVar) + if envVal := os.Getenv(envVar); envVal != "" { + f.Value = envVal + break + } + } + } + + eachName(f.Name, func(name string) { + if f.Destination != nil { + set.StringVar(f.Destination, name, f.Value, f.Usage) + return + } + set.String(name, f.Value, f.Usage) + }) +} + +// GetName returns the name of the flag. +func (f StringFlag) GetName() string { + return f.Name +} + +// IntFlag is a flag that takes an integer +type IntFlag struct { + Name string + Value int + Usage string + EnvVar string + Destination *int + Hidden bool +} + +// String returns the usage +func (f IntFlag) String() string { + return FlagStringer(f) +} + +// Apply populates the flag given the flag set and environment +func (f IntFlag) Apply(set *flag.FlagSet) { + if f.EnvVar != "" { + for _, envVar := range strings.Split(f.EnvVar, ",") { + envVar = strings.TrimSpace(envVar) + if envVal := os.Getenv(envVar); envVal != "" { + envValInt, err := strconv.ParseInt(envVal, 0, 64) + if err == nil { + f.Value = int(envValInt) + break + } + } + } + } + + eachName(f.Name, func(name string) { + if f.Destination != nil { + set.IntVar(f.Destination, name, f.Value, f.Usage) + return + } + set.Int(name, f.Value, f.Usage) + }) +} + +// GetName returns the name of the flag. +func (f IntFlag) GetName() string { + return f.Name +} + +// Int64Flag is a flag that takes a 64-bit integer +type Int64Flag struct { + Name string + Value int64 + Usage string + EnvVar string + Destination *int64 + Hidden bool +} + +// String returns the usage +func (f Int64Flag) String() string { + return FlagStringer(f) +} + +// Apply populates the flag given the flag set and environment +func (f Int64Flag) Apply(set *flag.FlagSet) { + if f.EnvVar != "" { + for _, envVar := range strings.Split(f.EnvVar, ",") { + envVar = strings.TrimSpace(envVar) + if envVal := os.Getenv(envVar); envVal != "" { + envValInt, err := strconv.ParseInt(envVal, 0, 64) + if err == nil { + f.Value = envValInt + break + } + } + } + } + + eachName(f.Name, func(name string) { + if f.Destination != nil { + set.Int64Var(f.Destination, name, f.Value, f.Usage) + return + } + set.Int64(name, f.Value, f.Usage) + }) +} + +// GetName returns the name of the flag. +func (f Int64Flag) GetName() string { + return f.Name +} + +// UintFlag is a flag that takes an unsigned integer +type UintFlag struct { + Name string + Value uint + Usage string + EnvVar string + Destination *uint + Hidden bool +} + +// String returns the usage +func (f UintFlag) String() string { + return FlagStringer(f) +} + +// Apply populates the flag given the flag set and environment +func (f UintFlag) Apply(set *flag.FlagSet) { + if f.EnvVar != "" { + for _, envVar := range strings.Split(f.EnvVar, ",") { + envVar = strings.TrimSpace(envVar) + if envVal := os.Getenv(envVar); envVal != "" { + envValInt, err := strconv.ParseUint(envVal, 0, 64) + if err == nil { + f.Value = uint(envValInt) + break + } + } + } + } + + eachName(f.Name, func(name string) { + if f.Destination != nil { + set.UintVar(f.Destination, name, f.Value, f.Usage) + return + } + set.Uint(name, f.Value, f.Usage) + }) +} + +// GetName returns the name of the flag. +func (f UintFlag) GetName() string { + return f.Name +} + +// Uint64Flag is a flag that takes an unsigned 64-bit integer +type Uint64Flag struct { + Name string + Value uint64 + Usage string + EnvVar string + Destination *uint64 + Hidden bool +} + +// String returns the usage +func (f Uint64Flag) String() string { + return FlagStringer(f) +} + +// Apply populates the flag given the flag set and environment +func (f Uint64Flag) Apply(set *flag.FlagSet) { + if f.EnvVar != "" { + for _, envVar := range strings.Split(f.EnvVar, ",") { + envVar = strings.TrimSpace(envVar) + if envVal := os.Getenv(envVar); envVal != "" { + envValInt, err := strconv.ParseUint(envVal, 0, 64) + if err == nil { + f.Value = uint64(envValInt) + break + } + } + } + } + + eachName(f.Name, func(name string) { + if f.Destination != nil { + set.Uint64Var(f.Destination, name, f.Value, f.Usage) + return + } + set.Uint64(name, f.Value, f.Usage) + }) +} + +// GetName returns the name of the flag. +func (f Uint64Flag) GetName() string { + return f.Name +} + +// DurationFlag is a flag that takes a duration specified in Go's duration +// format: https://golang.org/pkg/time/#ParseDuration +type DurationFlag struct { + Name string + Value time.Duration + Usage string + EnvVar string + Destination *time.Duration + Hidden bool +} + +// String returns a readable representation of this value (for usage defaults) +func (f DurationFlag) String() string { + return FlagStringer(f) +} + +// Apply populates the flag given the flag set and environment +func (f DurationFlag) Apply(set *flag.FlagSet) { + if f.EnvVar != "" { + for _, envVar := range strings.Split(f.EnvVar, ",") { + envVar = strings.TrimSpace(envVar) + if envVal := os.Getenv(envVar); envVal != "" { + envValDuration, err := time.ParseDuration(envVal) + if err == nil { + f.Value = envValDuration + break + } + } + } + } + + eachName(f.Name, func(name string) { + if f.Destination != nil { + set.DurationVar(f.Destination, name, f.Value, f.Usage) + return + } + set.Duration(name, f.Value, f.Usage) + }) +} + +// GetName returns the name of the flag. +func (f DurationFlag) GetName() string { + return f.Name +} + +// Float64Flag is a flag that takes an float value +type Float64Flag struct { + Name string + Value float64 + Usage string + EnvVar string + Destination *float64 + Hidden bool +} + +// String returns the usage +func (f Float64Flag) String() string { + return FlagStringer(f) +} + +// Apply populates the flag given the flag set and environment +func (f Float64Flag) Apply(set *flag.FlagSet) { + if f.EnvVar != "" { + for _, envVar := range strings.Split(f.EnvVar, ",") { + envVar = strings.TrimSpace(envVar) + if envVal := os.Getenv(envVar); envVal != "" { + envValFloat, err := strconv.ParseFloat(envVal, 10) + if err == nil { + f.Value = float64(envValFloat) + } + } + } + } + + eachName(f.Name, func(name string) { + if f.Destination != nil { + set.Float64Var(f.Destination, name, f.Value, f.Usage) + return + } + set.Float64(name, f.Value, f.Usage) + }) +} + +// GetName returns the name of the flag. +func (f Float64Flag) GetName() string { + return f.Name +} + +func visibleFlags(fl []Flag) []Flag { + visible := []Flag{} + for _, flag := range fl { + if !flagValue(flag).FieldByName("Hidden").Bool() { + visible = append(visible, flag) + } + } + return visible +} + +func prefixFor(name string) (prefix string) { + if len(name) == 1 { + prefix = "-" + } else { + prefix = "--" + } + + return +} + +// Returns the placeholder, if any, and the unquoted usage string. +func unquoteUsage(usage string) (string, string) { + for i := 0; i < len(usage); i++ { + if usage[i] == '`' { + for j := i + 1; j < len(usage); j++ { + if usage[j] == '`' { + name := usage[i+1 : j] + usage = usage[:i] + name + usage[j+1:] + return name, usage + } + } + break + } + } + return "", usage +} + +func prefixedNames(fullName, placeholder string) string { + var prefixed string + parts := strings.Split(fullName, ",") + for i, name := range parts { + name = strings.Trim(name, " ") + prefixed += prefixFor(name) + name + if placeholder != "" { + prefixed += " " + placeholder + } + if i < len(parts)-1 { + prefixed += ", " + } + } + return prefixed +} + +func withEnvHint(envVar, str string) string { + envText := "" + if envVar != "" { + prefix := "$" + suffix := "" + sep := ", $" + if runtime.GOOS == "windows" { + prefix = "%" + suffix = "%" + sep = "%, %" + } + envText = fmt.Sprintf(" [%s%s%s]", prefix, strings.Join(strings.Split(envVar, ","), sep), suffix) + } + return str + envText +} + +func flagValue(f Flag) reflect.Value { + fv := reflect.ValueOf(f) + for fv.Kind() == reflect.Ptr { + fv = reflect.Indirect(fv) + } + return fv +} + +func stringifyFlag(f Flag) string { + fv := flagValue(f) + + switch f.(type) { + case IntSliceFlag: + return withEnvHint(fv.FieldByName("EnvVar").String(), + stringifyIntSliceFlag(f.(IntSliceFlag))) + case Int64SliceFlag: + return withEnvHint(fv.FieldByName("EnvVar").String(), + stringifyInt64SliceFlag(f.(Int64SliceFlag))) + case StringSliceFlag: + return withEnvHint(fv.FieldByName("EnvVar").String(), + stringifyStringSliceFlag(f.(StringSliceFlag))) + } + + placeholder, usage := unquoteUsage(fv.FieldByName("Usage").String()) + + needsPlaceholder := false + defaultValueString := "" + val := fv.FieldByName("Value") + + if val.IsValid() { + needsPlaceholder = true + defaultValueString = fmt.Sprintf(" (default: %v)", val.Interface()) + + if val.Kind() == reflect.String && val.String() != "" { + defaultValueString = fmt.Sprintf(" (default: %q)", val.String()) + } + } + + if defaultValueString == " (default: )" { + defaultValueString = "" + } + + if needsPlaceholder && placeholder == "" { + placeholder = defaultPlaceholder + } + + usageWithDefault := strings.TrimSpace(fmt.Sprintf("%s%s", usage, defaultValueString)) + + return withEnvHint(fv.FieldByName("EnvVar").String(), + fmt.Sprintf("%s\t%s", prefixedNames(fv.FieldByName("Name").String(), placeholder), usageWithDefault)) +} + +func stringifyIntSliceFlag(f IntSliceFlag) string { + defaultVals := []string{} + if f.Value != nil && len(f.Value.Value()) > 0 { + for _, i := range f.Value.Value() { + defaultVals = append(defaultVals, fmt.Sprintf("%d", i)) + } + } + + return stringifySliceFlag(f.Usage, f.Name, defaultVals) +} + +func stringifyInt64SliceFlag(f Int64SliceFlag) string { + defaultVals := []string{} + if f.Value != nil && len(f.Value.Value()) > 0 { + for _, i := range f.Value.Value() { + defaultVals = append(defaultVals, fmt.Sprintf("%d", i)) + } + } + + return stringifySliceFlag(f.Usage, f.Name, defaultVals) +} + +func stringifyStringSliceFlag(f StringSliceFlag) string { + defaultVals := []string{} + if f.Value != nil && len(f.Value.Value()) > 0 { + for _, s := range f.Value.Value() { + if len(s) > 0 { + defaultVals = append(defaultVals, fmt.Sprintf("%q", s)) + } + } + } + + return stringifySliceFlag(f.Usage, f.Name, defaultVals) +} + +func stringifySliceFlag(usage, name string, defaultVals []string) string { + placeholder, usage := unquoteUsage(usage) + if placeholder == "" { + placeholder = defaultPlaceholder + } + + defaultVal := "" + if len(defaultVals) > 0 { + defaultVal = fmt.Sprintf(" (default: %s)", strings.Join(defaultVals, ", ")) + } + + usageWithDefault := strings.TrimSpace(fmt.Sprintf("%s%s", usage, defaultVal)) + return fmt.Sprintf("%s\t%s", prefixedNames(name, placeholder), usageWithDefault) +} diff --git a/vendor/github.com/urfave/cli/funcs.go b/vendor/github.com/urfave/cli/funcs.go new file mode 100644 index 00000000..cba5e6cb --- /dev/null +++ b/vendor/github.com/urfave/cli/funcs.go @@ -0,0 +1,28 @@ +package cli + +// BashCompleteFunc is an action to execute when the bash-completion flag is set +type BashCompleteFunc func(*Context) + +// BeforeFunc is an action to execute before any subcommands are run, but after +// the context is ready if a non-nil error is returned, no subcommands are run +type BeforeFunc func(*Context) error + +// AfterFunc is an action to execute after any subcommands are run, but after the +// subcommand has finished it is run even if Action() panics +type AfterFunc func(*Context) error + +// ActionFunc is the action to execute when no subcommands are specified +type ActionFunc func(*Context) error + +// CommandNotFoundFunc is executed if the proper command cannot be found +type CommandNotFoundFunc func(*Context, string) + +// OnUsageErrorFunc is executed if an usage error occurs. This is useful for displaying +// customized usage error messages. This function is able to replace the +// original error messages. If this function is not set, the "Incorrect usage" +// is displayed and the execution is interrupted. +type OnUsageErrorFunc func(context *Context, err error, isSubcommand bool) error + +// FlagStringFunc is used by the help generation to display a flag, which is +// expected to be a single line. +type FlagStringFunc func(Flag) string diff --git a/vendor/github.com/urfave/cli/help.go b/vendor/github.com/urfave/cli/help.go new file mode 100644 index 00000000..0f4cf14c --- /dev/null +++ b/vendor/github.com/urfave/cli/help.go @@ -0,0 +1,267 @@ +package cli + +import ( + "fmt" + "io" + "os" + "strings" + "text/tabwriter" + "text/template" +) + +// AppHelpTemplate is the text template for the Default help topic. +// cli.go uses text/template to render templates. You can +// render custom help text by setting this variable. +var AppHelpTemplate = `NAME: + {{.Name}} - {{.Usage}} + +USAGE: + {{if .UsageText}}{{.UsageText}}{{else}}{{.HelpName}} {{if .VisibleFlags}}[global options]{{end}}{{if .Commands}} command [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}{{end}} + {{if .Version}}{{if not .HideVersion}} +VERSION: + {{.Version}} + {{end}}{{end}}{{if len .Authors}} +AUTHOR(S): + {{range .Authors}}{{.}}{{end}} + {{end}}{{if .VisibleCommands}} +COMMANDS:{{range .VisibleCategories}}{{if .Name}} + {{.Name}}:{{end}}{{range .VisibleCommands}} + {{join .Names ", "}}{{"\t"}}{{.Usage}}{{end}} +{{end}}{{end}}{{if .VisibleFlags}} +GLOBAL OPTIONS: + {{range .VisibleFlags}}{{.}} + {{end}}{{end}}{{if .Copyright}} +COPYRIGHT: + {{.Copyright}} + {{end}} +` + +// CommandHelpTemplate is the text template for the command help topic. +// cli.go uses text/template to render templates. You can +// render custom help text by setting this variable. +var CommandHelpTemplate = `NAME: + {{.HelpName}} - {{.Usage}} + +USAGE: + {{.HelpName}}{{if .VisibleFlags}} [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}{{if .Category}} + +CATEGORY: + {{.Category}}{{end}}{{if .Description}} + +DESCRIPTION: + {{.Description}}{{end}}{{if .VisibleFlags}} + +OPTIONS: + {{range .VisibleFlags}}{{.}} + {{end}}{{end}} +` + +// SubcommandHelpTemplate is the text template for the subcommand help topic. +// cli.go uses text/template to render templates. You can +// render custom help text by setting this variable. +var SubcommandHelpTemplate = `NAME: + {{.HelpName}} - {{.Usage}} + +USAGE: + {{.HelpName}} command{{if .VisibleFlags}} [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}} + +COMMANDS:{{range .VisibleCategories}}{{if .Name}} + {{.Name}}:{{end}}{{range .VisibleCommands}} + {{join .Names ", "}}{{"\t"}}{{.Usage}}{{end}} +{{end}}{{if .VisibleFlags}} +OPTIONS: + {{range .VisibleFlags}}{{.}} + {{end}}{{end}} +` + +var helpCommand = Command{ + Name: "help", + Aliases: []string{"h"}, + Usage: "Shows a list of commands or help for one command", + ArgsUsage: "[command]", + Action: func(c *Context) error { + args := c.Args() + if args.Present() { + return ShowCommandHelp(c, args.First()) + } + + ShowAppHelp(c) + return nil + }, +} + +var helpSubcommand = Command{ + Name: "help", + Aliases: []string{"h"}, + Usage: "Shows a list of commands or help for one command", + ArgsUsage: "[command]", + Action: func(c *Context) error { + args := c.Args() + if args.Present() { + return ShowCommandHelp(c, args.First()) + } + + return ShowSubcommandHelp(c) + }, +} + +// Prints help for the App or Command +type helpPrinter func(w io.Writer, templ string, data interface{}) + +// HelpPrinter is a function that writes the help output. If not set a default +// is used. The function signature is: +// func(w io.Writer, templ string, data interface{}) +var HelpPrinter helpPrinter = printHelp + +// VersionPrinter prints the version for the App +var VersionPrinter = printVersion + +// ShowAppHelp is an action that displays the help. +func ShowAppHelp(c *Context) error { + HelpPrinter(c.App.Writer, AppHelpTemplate, c.App) + return nil +} + +// DefaultAppComplete prints the list of subcommands as the default app completion method +func DefaultAppComplete(c *Context) { + for _, command := range c.App.Commands { + if command.Hidden { + continue + } + for _, name := range command.Names() { + fmt.Fprintln(c.App.Writer, name) + } + } +} + +// ShowCommandHelp prints help for the given command +func ShowCommandHelp(ctx *Context, command string) error { + // show the subcommand help for a command with subcommands + if command == "" { + HelpPrinter(ctx.App.Writer, SubcommandHelpTemplate, ctx.App) + return nil + } + + for _, c := range ctx.App.Commands { + if c.HasName(command) { + HelpPrinter(ctx.App.Writer, CommandHelpTemplate, c) + return nil + } + } + + if ctx.App.CommandNotFound == nil { + return NewExitError(fmt.Sprintf("No help topic for '%v'", command), 3) + } + + ctx.App.CommandNotFound(ctx, command) + return nil +} + +// ShowSubcommandHelp prints help for the given subcommand +func ShowSubcommandHelp(c *Context) error { + return ShowCommandHelp(c, c.Command.Name) +} + +// ShowVersion prints the version number of the App +func ShowVersion(c *Context) { + VersionPrinter(c) +} + +func printVersion(c *Context) { + fmt.Fprintf(c.App.Writer, "%v version %v\n", c.App.Name, c.App.Version) +} + +// ShowCompletions prints the lists of commands within a given context +func ShowCompletions(c *Context) { + a := c.App + if a != nil && a.BashComplete != nil { + a.BashComplete(c) + } +} + +// ShowCommandCompletions prints the custom completions for a given command +func ShowCommandCompletions(ctx *Context, command string) { + c := ctx.App.Command(command) + if c != nil && c.BashComplete != nil { + c.BashComplete(ctx) + } +} + +func printHelp(out io.Writer, templ string, data interface{}) { + funcMap := template.FuncMap{ + "join": strings.Join, + } + + w := tabwriter.NewWriter(out, 1, 8, 2, ' ', 0) + t := template.Must(template.New("help").Funcs(funcMap).Parse(templ)) + err := t.Execute(w, data) + if err != nil { + // If the writer is closed, t.Execute will fail, and there's nothing + // we can do to recover. + if os.Getenv("CLI_TEMPLATE_ERROR_DEBUG") != "" { + fmt.Fprintf(ErrWriter, "CLI TEMPLATE ERROR: %#v\n", err) + } + return + } + w.Flush() +} + +func checkVersion(c *Context) bool { + found := false + if VersionFlag.Name != "" { + eachName(VersionFlag.Name, func(name string) { + if c.GlobalBool(name) || c.Bool(name) { + found = true + } + }) + } + return found +} + +func checkHelp(c *Context) bool { + found := false + if HelpFlag.Name != "" { + eachName(HelpFlag.Name, func(name string) { + if c.GlobalBool(name) || c.Bool(name) { + found = true + } + }) + } + return found +} + +func checkCommandHelp(c *Context, name string) bool { + if c.Bool("h") || c.Bool("help") { + ShowCommandHelp(c, name) + return true + } + + return false +} + +func checkSubcommandHelp(c *Context) bool { + if c.GlobalBool("h") || c.GlobalBool("help") { + ShowSubcommandHelp(c) + return true + } + + return false +} + +func checkCompletions(c *Context) bool { + if (c.GlobalBool(BashCompletionFlag.Name) || c.Bool(BashCompletionFlag.Name)) && c.App.EnableBashCompletion { + ShowCompletions(c) + return true + } + + return false +} + +func checkCommandCompletions(c *Context, name string) bool { + if c.Bool(BashCompletionFlag.Name) && c.App.EnableBashCompletion { + ShowCommandCompletions(c, name) + return true + } + + return false +} diff --git a/vendor/github.com/urfave/cli/runtests b/vendor/github.com/urfave/cli/runtests new file mode 100755 index 00000000..0a7b483e --- /dev/null +++ b/vendor/github.com/urfave/cli/runtests @@ -0,0 +1,105 @@ +#!/usr/bin/env python +from __future__ import print_function + +import argparse +import os +import sys +import tempfile + +from subprocess import check_call, check_output + + +PACKAGE_NAME = os.environ.get( + 'CLI_PACKAGE_NAME', 'github.com/urfave/cli' +) + + +def main(sysargs=sys.argv[:]): + targets = { + 'vet': _vet, + 'test': _test, + 'gfmxr': _gfmxr, + 'toc': _toc, + } + + parser = argparse.ArgumentParser() + parser.add_argument( + 'target', nargs='?', choices=tuple(targets.keys()), default='test' + ) + args = parser.parse_args(sysargs[1:]) + + targets[args.target]() + return 0 + + +def _test(): + if check_output('go version'.split()).split()[2] < 'go1.2': + _run('go test -v .'.split()) + return + + coverprofiles = [] + for subpackage in ['', 'altsrc']: + coverprofile = 'cli.coverprofile' + if subpackage != '': + coverprofile = '{}.coverprofile'.format(subpackage) + + coverprofiles.append(coverprofile) + + _run('go test -v'.split() + [ + '-coverprofile={}'.format(coverprofile), + ('{}/{}'.format(PACKAGE_NAME, subpackage)).rstrip('/') + ]) + + combined_name = _combine_coverprofiles(coverprofiles) + _run('go tool cover -func={}'.format(combined_name).split()) + os.remove(combined_name) + + +def _gfmxr(): + _run(['gfmxr', '-c', str(_gfmxr_count()), '-s', 'README.md']) + + +def _vet(): + _run('go vet ./...'.split()) + + +def _toc(): + _run(['node_modules/.bin/markdown-toc', '-i', 'README.md']) + _run(['git', 'diff', '--quiet']) + + +def _run(command): + print('runtests: {}'.format(' '.join(command)), file=sys.stderr) + check_call(command) + + +def _gfmxr_count(): + with open('README.md') as infile: + lines = infile.read().splitlines() + return len(filter(_is_go_runnable, lines)) + + +def _is_go_runnable(line): + return line.startswith('package main') + + +def _combine_coverprofiles(coverprofiles): + combined = tempfile.NamedTemporaryFile( + suffix='.coverprofile', delete=False + ) + combined.write('mode: set\n') + + for coverprofile in coverprofiles: + with open(coverprofile, 'r') as infile: + for line in infile.readlines(): + if not line.startswith('mode: '): + combined.write(line) + + combined.flush() + name = combined.name + combined.close() + return name + + +if __name__ == '__main__': + sys.exit(main())