From 2dffa0e75cfc3cb47ed5ba8c62cec800feefe23f Mon Sep 17 00:00:00 2001 From: Christopher Broglie Date: Sun, 19 Sep 2021 22:02:04 -0700 Subject: [PATCH] Update Golang and packages to latest versions --- .github/workflows/release.yml | 2 +- .github/workflows/testing.yml | 2 +- go.mod | 13 +- go.sum | 611 ++++++++++++-- vendor/github.com/spf13/cobra/.golangci.yml | 48 ++ vendor/github.com/spf13/cobra/.travis.yml | 29 - vendor/github.com/spf13/cobra/CHANGELOG.md | 51 ++ vendor/github.com/spf13/cobra/CONDUCT.md | 37 + vendor/github.com/spf13/cobra/CONTRIBUTING.md | 50 ++ vendor/github.com/spf13/cobra/Makefile | 18 +- vendor/github.com/spf13/cobra/README.md | 695 +--------------- .../spf13/cobra/bash_completions.go | 194 +++-- .../spf13/cobra/bash_completions.md | 306 +------ .../spf13/cobra/bash_completionsV2.go | 302 +++++++ vendor/github.com/spf13/cobra/cobra.go | 15 + vendor/github.com/spf13/cobra/command.go | 192 +++-- vendor/github.com/spf13/cobra/completions.go | 781 ++++++++++++++++++ .../spf13/cobra/custom_completions.go | 384 --------- .../spf13/cobra/fish_completions.go | 195 +++-- .../spf13/cobra/fish_completions.md | 7 +- vendor/github.com/spf13/cobra/go.mod | 12 - vendor/github.com/spf13/cobra/go.sum | 149 ---- .../spf13/cobra/powershell_completions.go | 323 ++++++-- .../spf13/cobra/powershell_completions.md | 13 +- .../spf13/cobra/projects_using_cobra.md | 38 + .../spf13/cobra/shell_completions.go | 53 +- .../spf13/cobra/shell_completions.md | 546 ++++++++++++ vendor/github.com/spf13/cobra/user_guide.md | 637 ++++++++++++++ .../github.com/spf13/cobra/zsh_completions.go | 520 +++++------- .../github.com/spf13/cobra/zsh_completions.md | 87 +- vendor/github.com/spf13/pflag/go.mod | 3 - vendor/github.com/spf13/pflag/go.sum | 0 vendor/gopkg.in/yaml.v2/.travis.yml | 1 + vendor/gopkg.in/yaml.v2/apic.go | 6 +- vendor/gopkg.in/yaml.v2/go.mod | 5 - vendor/gopkg.in/yaml.v2/yaml.go | 14 +- vendor/modules.txt | 17 +- 37 files changed, 4016 insertions(+), 2340 deletions(-) create mode 100644 vendor/github.com/spf13/cobra/.golangci.yml delete mode 100644 vendor/github.com/spf13/cobra/.travis.yml create mode 100644 vendor/github.com/spf13/cobra/CHANGELOG.md create mode 100644 vendor/github.com/spf13/cobra/CONDUCT.md create mode 100644 vendor/github.com/spf13/cobra/CONTRIBUTING.md create mode 100644 vendor/github.com/spf13/cobra/bash_completionsV2.go create mode 100644 vendor/github.com/spf13/cobra/completions.go delete mode 100644 vendor/github.com/spf13/cobra/custom_completions.go delete mode 100644 vendor/github.com/spf13/cobra/go.mod delete mode 100644 vendor/github.com/spf13/cobra/go.sum create mode 100644 vendor/github.com/spf13/cobra/projects_using_cobra.md create mode 100644 vendor/github.com/spf13/cobra/shell_completions.md create mode 100644 vendor/github.com/spf13/cobra/user_guide.md delete mode 100644 vendor/github.com/spf13/pflag/go.mod delete mode 100644 vendor/github.com/spf13/pflag/go.sum delete mode 100644 vendor/gopkg.in/yaml.v2/go.mod diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml index a1d07e3..ee4d905 100644 --- a/.github/workflows/release.yml +++ b/.github/workflows/release.yml @@ -17,7 +17,7 @@ jobs: - name: Set up Go uses: actions/setup-go@v2 with: - go-version: 1.14 + go-version: 1.17.1 - name: GoReleaser uses: goreleaser/goreleaser-action@v2.4.1 diff --git a/.github/workflows/testing.yml b/.github/workflows/testing.yml index 46e5223..7366928 100644 --- a/.github/workflows/testing.yml +++ b/.github/workflows/testing.yml @@ -22,7 +22,7 @@ jobs: - name: Set up Go uses: actions/setup-go@v2 with: - go-version: 1.14 + go-version: 1.17.1 - name: Test run: make test diff --git a/go.mod b/go.mod index 9612b00..d0e0553 100644 --- a/go.mod +++ b/go.mod @@ -1,12 +1,13 @@ module github.com/cbroglie/mustache -go 1.14 +go 1.17 require ( - github.com/kr/text v0.2.0 // indirect - github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e // indirect - github.com/spf13/cobra v1.0.0 + github.com/spf13/cobra v1.2.1 + gopkg.in/yaml.v2 v2.4.0 +) + +require ( + github.com/inconshreveable/mousetrap v1.0.0 // indirect github.com/spf13/pflag v1.0.5 // indirect - gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f // indirect - gopkg.in/yaml.v2 v2.3.0 ) diff --git a/go.sum b/go.sum index 75f4f3d..9294bed 100644 --- a/go.sum +++ b/go.sum @@ -1,137 +1,570 @@ cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU= +cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU= +cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY= +cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc= +cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0= 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file mode 100644 index 0000000..0d6e617 --- /dev/null +++ b/vendor/github.com/spf13/cobra/.golangci.yml @@ -0,0 +1,48 @@ +run: + deadline: 5m + +linters: + disable-all: true + enable: + #- bodyclose + - deadcode + #- depguard + #- dogsled + #- dupl + - errcheck + #- exhaustive + #- funlen + - gas + #- gochecknoinits + - goconst + #- gocritic + #- gocyclo + #- gofmt + - goimports + - golint + #- gomnd + #- goprintffuncname + #- gosec + #- gosimple + - govet + - ineffassign + - interfacer + #- lll + - maligned + - megacheck + #- misspell + #- nakedret + #- noctx + #- nolintlint + #- rowserrcheck + #- scopelint + #- staticcheck + - structcheck + #- stylecheck + #- typecheck + - unconvert + #- unparam + #- unused + - varcheck + #- whitespace + fast: false diff --git a/vendor/github.com/spf13/cobra/.travis.yml b/vendor/github.com/spf13/cobra/.travis.yml deleted file mode 100644 index a9bd4e5..0000000 --- a/vendor/github.com/spf13/cobra/.travis.yml +++ /dev/null @@ -1,29 +0,0 @@ -language: go - -stages: - - diff - - test - - build - -go: - - 1.12.x - - 1.13.x - - tip - -before_install: - - go get -u github.com/kyoh86/richgo - - go get -u github.com/mitchellh/gox - -matrix: - allow_failures: - - go: tip - include: - - stage: diff - go: 1.13.x - script: make fmt - - stage: build - go: 1.13.x - script: make cobra_generator - -script: - - make test diff --git a/vendor/github.com/spf13/cobra/CHANGELOG.md b/vendor/github.com/spf13/cobra/CHANGELOG.md new file mode 100644 index 0000000..8a23b4f --- /dev/null +++ b/vendor/github.com/spf13/cobra/CHANGELOG.md @@ -0,0 +1,51 @@ +# Cobra Changelog + +## v1.1.3 + +* **Fix:** release-branch.cobra1.1 only: Revert "Deprecate Go < 1.14" to maintain backward compatibility + +## v1.1.2 + +### Notable Changes + +* Bump license year to 2021 in golden files (#1309) @Bowbaq +* Enhance PowerShell completion with custom comp (#1208) @Luap99 +* Update gopkg.in/yaml.v2 to v2.4.0: The previous breaking change in yaml.v2 v2.3.0 has been reverted, see go-yaml/yaml#670 +* Documentation readability improvements (#1228 etc.) @zaataylor etc. +* Use golangci-lint: Repair warnings and errors resulting from linting (#1044) @umarcor + +## v1.1.1 + +* **Fix:** yaml.v2 2.3.0 contained a unintended breaking change. This release reverts to yaml.v2 v2.2.8 which has recent critical CVE fixes, but does not have the breaking changes. See https://github.com/spf13/cobra/pull/1259 for context. +* **Fix:** correct internal formatting for go-md2man v2 (which caused man page generation to be broken). See https://github.com/spf13/cobra/issues/1049 for context. + +## v1.1.0 + +### Notable Changes + +* Extend Go completions and revamp zsh comp (#1070) +* Fix man page doc generation - no auto generated tag when `cmd.DisableAutoGenTag = true` (#1104) @jpmcb +* Add completion for help command (#1136) +* Complete subcommands when TraverseChildren is set (#1171) +* Fix stderr printing functions (#894) +* fix: fish output redirection (#1247) + +## v1.0.0 + +Announcing v1.0.0 of Cobra. 🎉 + +### Notable Changes +* Fish completion (including support for Go custom completion) @marckhouzam +* API (urgent): Rename BashCompDirectives to ShellCompDirectives @marckhouzam +* Remove/replace SetOutput on Command - deprecated @jpmcb +* add support for autolabel stale PR @xchapter7x +* Add Labeler Actions @xchapter7x +* Custom completions coded in Go (instead of Bash) @marckhouzam +* Partial Revert of #922 @jharshman +* Add Makefile to project @jharshman +* Correct documentation for InOrStdin @desponda +* Apply formatting to templates @jharshman +* Revert change so help is printed on stdout again @marckhouzam +* Update md2man to v2.0.0 @pdf +* update viper to v1.4.0 @umarcor +* Update cmd/root.go example in README.md @jharshman diff --git a/vendor/github.com/spf13/cobra/CONDUCT.md b/vendor/github.com/spf13/cobra/CONDUCT.md new file mode 100644 index 0000000..9d16f88 --- /dev/null +++ b/vendor/github.com/spf13/cobra/CONDUCT.md @@ -0,0 +1,37 @@ +## Cobra User Contract + +### Versioning +Cobra will follow a steady release cadence. Non breaking changes will be released as minor versions quarterly. Patch bug releases are at the discretion of the maintainers. Users can expect security patch fixes to be released within relatively short order of a CVE becoming known. For more information on security patch fixes see the CVE section below. Releases will follow [Semantic Versioning](https://semver.org/). Users tracking the Master branch should expect unpredictable breaking changes as the project continues to move forward. For stability, it is highly recommended to use a release. + +### Backward Compatibility +We will maintain two major releases in a moving window. The N-1 release will only receive bug fixes and security updates and will be dropped once N+1 is released. + +### Deprecation +Deprecation of Go versions or dependent packages will only occur in major releases. To reduce the change of this taking users by surprise, any large deprecation will be preceded by an announcement in the [#cobra slack channel](https://gophers.slack.com/archives/CD3LP1199) and an Issue on Github. + +### CVE +Maintainers will make every effort to release security patches in the case of a medium to high severity CVE directly impacting the library. The speed in which these patches reach a release is up to the discretion of the maintainers. A low severity CVE may be a lower priority than a high severity one. + +### Communication +Cobra maintainers will use GitHub issues and the [#cobra slack channel](https://gophers.slack.com/archives/CD3LP1199) as the primary means of communication with the community. This is to foster open communication with all users and contributors. + +### Breaking Changes +Breaking changes are generally allowed in the master branch, as this is the branch used to develop the next release of Cobra. + +There may be times, however, when master is closed for breaking changes. This is likely to happen as we near the release of a new version. + +Breaking changes are not allowed in release branches, as these represent minor versions that have already been released. These version have consumers who expect the APIs, behaviors, etc, to remain stable during the lifetime of the patch stream for the minor release. + +Examples of breaking changes include: +- Removing or renaming exported constant, variable, type, or function. +- Updating the version of critical libraries such as `spf13/pflag`, `spf13/viper` etc... + - Some version updates may be acceptable for picking up bug fixes, but maintainers must exercise caution when reviewing. + +There may, at times, need to be exceptions where breaking changes are allowed in release branches. These are at the discretion of the project's maintainers, and must be carefully considered before merging. + +### CI Testing +Maintainers will ensure the Cobra test suite utilizes the current supported versions of Golang. + +### Disclaimer +Changes to this document and the contents therein are at the discretion of the maintainers. +None of the contents of this document are legally binding in any way to the maintainers or the users. diff --git a/vendor/github.com/spf13/cobra/CONTRIBUTING.md b/vendor/github.com/spf13/cobra/CONTRIBUTING.md new file mode 100644 index 0000000..6f356e6 --- /dev/null +++ b/vendor/github.com/spf13/cobra/CONTRIBUTING.md @@ -0,0 +1,50 @@ +# Contributing to Cobra + +Thank you so much for contributing to Cobra. We appreciate your time and help. +Here are some guidelines to help you get started. + +## Code of Conduct + +Be kind and respectful to the members of the community. Take time to educate +others who are seeking help. Harassment of any kind will not be tolerated. + +## Questions + +If you have questions regarding Cobra, feel free to ask it in the community +[#cobra Slack channel][cobra-slack] + +## Filing a bug or feature + +1. Before filing an issue, please check the existing issues to see if a + similar one was already opened. If there is one already opened, feel free + to comment on it. +1. If you believe you've found a bug, please provide detailed steps of + reproduction, the version of Cobra and anything else you believe will be + useful to help troubleshoot it (e.g. OS environment, environment variables, + etc...). Also state the current behavior vs. the expected behavior. +1. If you'd like to see a feature or an enhancement please open an issue with + a clear title and description of what the feature is and why it would be + beneficial to the project and its users. + +## Submitting changes + +1. CLA: Upon submitting a Pull Request (PR), contributors will be prompted to + sign a CLA. Please sign the CLA :slightly_smiling_face: +1. Tests: If you are submitting code, please ensure you have adequate tests + for the feature. Tests can be run via `go test ./...` or `make test`. +1. Since this is golang project, ensure the new code is properly formatted to + ensure code consistency. Run `make all`. + +### Quick steps to contribute + +1. Fork the project. +1. Download your fork to your PC (`git clone https://github.com/your_username/cobra && cd cobra`) +1. Create your feature branch (`git checkout -b my-new-feature`) +1. Make changes and run tests (`make test`) +1. Add them to staging (`git add .`) +1. Commit your changes (`git commit -m 'Add some feature'`) +1. Push to the branch (`git push origin my-new-feature`) +1. Create new pull request + + +[cobra-slack]: https://gophers.slack.com/archives/CD3LP1199 diff --git a/vendor/github.com/spf13/cobra/Makefile b/vendor/github.com/spf13/cobra/Makefile index e9740d1..472c73b 100644 --- a/vendor/github.com/spf13/cobra/Makefile +++ b/vendor/github.com/spf13/cobra/Makefile @@ -1,21 +1,29 @@ BIN="./bin" SRC=$(shell find . -name "*.go") +ifeq (, $(shell which golangci-lint)) +$(warning "could not find golangci-lint in $(PATH), run: curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | sh") +endif + ifeq (, $(shell which richgo)) $(warning "could not find richgo in $(PATH), run: go get github.com/kyoh86/richgo") endif -.PHONY: fmt vet test cobra_generator install_deps clean +.PHONY: fmt lint test cobra_generator install_deps clean default: all -all: fmt vet test cobra_generator +all: fmt test cobra_generator fmt: $(info ******************** checking formatting ********************) @test -z $(shell gofmt -l $(SRC)) || (gofmt -d $(SRC); exit 1) -test: install_deps vet +lint: + $(info ******************** running lint tools ********************) + golangci-lint run -v + +test: install_deps lint $(info ******************** running tests ********************) richgo test -v ./... @@ -28,9 +36,5 @@ install_deps: $(info ******************** downloading dependencies ********************) go get -v ./... -vet: - $(info ******************** vetting ********************) - go vet ./... - clean: rm -rf $(BIN) diff --git a/vendor/github.com/spf13/cobra/README.md b/vendor/github.com/spf13/cobra/README.md index 9d79934..074e397 100644 --- a/vendor/github.com/spf13/cobra/README.md +++ b/vendor/github.com/spf13/cobra/README.md @@ -2,35 +2,14 @@ Cobra is both a library for creating powerful modern CLI applications as well as a program to generate applications and command files. -Many of the most widely used Go projects are built using Cobra, such as: -[Kubernetes](http://kubernetes.io/), -[Hugo](http://gohugo.io), -[rkt](https://github.com/coreos/rkt), -[etcd](https://github.com/coreos/etcd), -[Moby (former Docker)](https://github.com/moby/moby), -[Docker (distribution)](https://github.com/docker/distribution), -[OpenShift](https://www.openshift.com/), -[Delve](https://github.com/derekparker/delve), -[GopherJS](http://www.gopherjs.org/), -[CockroachDB](http://www.cockroachlabs.com/), -[Bleve](http://www.blevesearch.com/), -[ProjectAtomic (enterprise)](http://www.projectatomic.io/), -[Giant Swarm's gsctl](https://github.com/giantswarm/gsctl), -[Nanobox](https://github.com/nanobox-io/nanobox)/[Nanopack](https://github.com/nanopack), -[rclone](http://rclone.org/), -[nehm](https://github.com/bogem/nehm), -[Pouch](https://github.com/alibaba/pouch), -[Istio](https://istio.io), -[Prototool](https://github.com/uber/prototool), -[mattermost-server](https://github.com/mattermost/mattermost-server), -[Gardener](https://github.com/gardener/gardenctl), -[Linkerd](https://linkerd.io/), -[Github CLI](https://github.com/cli/cli) -etc. - -[![Build Status](https://travis-ci.org/spf13/cobra.svg "Travis CI status")](https://travis-ci.org/spf13/cobra) +Cobra is used in many Go projects such as [Kubernetes](http://kubernetes.io/), +[Hugo](https://gohugo.io), and [Github CLI](https://github.com/cli/cli) to +name a few. [This list](./projects_using_cobra.md) contains a more extensive list of projects using Cobra. + +[![](https://img.shields.io/github/workflow/status/spf13/cobra/Test?longCache=tru&label=Test&logo=github%20actions&logoColor=fff)](https://github.com/spf13/cobra/actions?query=workflow%3ATest) [![GoDoc](https://godoc.org/github.com/spf13/cobra?status.svg)](https://godoc.org/github.com/spf13/cobra) [![Go Report Card](https://goreportcard.com/badge/github.com/spf13/cobra)](https://goreportcard.com/report/github.com/spf13/cobra) +[![Slack](https://img.shields.io/badge/Slack-cobra-brightgreen)](https://gophers.slack.com/archives/CD3LP1199) # Table of Contents @@ -39,20 +18,19 @@ etc. * [Commands](#commands) * [Flags](#flags) - [Installing](#installing) -- [Getting Started](#getting-started) - * [Using the Cobra Generator](#using-the-cobra-generator) - * [Using the Cobra Library](#using-the-cobra-library) - * [Working with Flags](#working-with-flags) - * [Positional and Custom Arguments](#positional-and-custom-arguments) - * [Example](#example) - * [Help Command](#help-command) - * [Usage Message](#usage-message) - * [PreRun and PostRun Hooks](#prerun-and-postrun-hooks) - * [Suggestions when "unknown command" happens](#suggestions-when-unknown-command-happens) - * [Generating documentation for your command](#generating-documentation-for-your-command) - * [Generating bash completions](#generating-bash-completions) - * [Generating zsh completions](#generating-zsh-completions) -- [Contributing](#contributing) +- [Usage](#usage) + * [Using the Cobra Generator](user_guide.md#using-the-cobra-generator) + * [Using the Cobra Library](user_guide.md#using-the-cobra-library) + * [Working with Flags](user_guide.md#working-with-flags) + * [Positional and Custom Arguments](user_guide.md#positional-and-custom-arguments) + * [Example](user_guide.md#example) + * [Help Command](user_guide.md#help-command) + * [Usage Message](user_guide.md#usage-message) + * [PreRun and PostRun Hooks](user_guide.md#prerun-and-postrun-hooks) + * [Suggestions when "unknown command" happens](user_guide.md#suggestions-when-unknown-command-happens) + * [Generating documentation for your command](user_guide.md#generating-documentation-for-your-command) + * [Generating shell completions](user_guide.md#generating-shell-completions) +- [Contributing](CONTRIBUTING.md) - [License](#license) # Overview @@ -72,7 +50,7 @@ Cobra provides: * Intelligent suggestions (`app srver`... did you mean `app server`?) * Automatic help generation for commands and flags * Automatic help flag recognition of `-h`, `--help`, etc. -* Automatically generated bash autocomplete for your application +* Automatically generated shell autocomplete for your application (bash, zsh, fish, powershell) * Automatically generated man pages for your application * Command aliases so you can change things without breaking them * The flexibility to define your own help, usage, etc. @@ -84,8 +62,8 @@ Cobra is built on a structure of commands, arguments & flags. **Commands** represent actions, **Args** are things and **Flags** are modifiers for those actions. -The best applications will read like sentences when used. Users will know how -to use the application because they will natively understand how to use it. +The best applications read like sentences when used, and as a result, users +intuitively know how to interact with them. The pattern to follow is `APPNAME VERB NOUN --ADJECTIVE.` @@ -130,7 +108,7 @@ Using Cobra is easy. First, use `go get` to install the latest version of the library. This command will install the `cobra` generator executable along with the library and its dependencies: - go get -u github.com/spf13/cobra/cobra + go get -u github.com/spf13/cobra Next, include Cobra in your application: @@ -138,632 +116,9 @@ Next, include Cobra in your application: import "github.com/spf13/cobra" ``` -# Getting Started - -While you are welcome to provide your own organization, typically a Cobra-based -application will follow the following organizational structure: - -``` - ▾ appName/ - ▾ cmd/ - add.go - your.go - commands.go - here.go - main.go -``` - -In a Cobra app, typically the main.go file is very bare. It serves one purpose: initializing Cobra. - -```go -package main - -import ( - "{pathToYourApp}/cmd" -) - -func main() { - cmd.Execute() -} -``` - -## Using the Cobra Generator - -Cobra provides its own program that will create your application and add any -commands you want. It's the easiest way to incorporate Cobra into your application. - -[Here](https://github.com/spf13/cobra/blob/master/cobra/README.md) you can find more information about it. - -## Using the Cobra Library - -To manually implement Cobra you need to create a bare main.go file and a rootCmd file. -You will optionally provide additional commands as you see fit. - -### Create rootCmd - -Cobra doesn't require any special constructors. Simply create your commands. - -Ideally you place this in app/cmd/root.go: - -```go -var rootCmd = &cobra.Command{ - Use: "hugo", - Short: "Hugo is a very fast static site generator", - Long: `A Fast and Flexible Static Site Generator built with - love by spf13 and friends in Go. - Complete documentation is available at http://hugo.spf13.com`, - Run: func(cmd *cobra.Command, args []string) { - // Do Stuff Here - }, -} - -func Execute() { - if err := rootCmd.Execute(); err != nil { - fmt.Println(err) - os.Exit(1) - } -} -``` - -You will additionally define flags and handle configuration in your init() function. - -For example cmd/root.go: - -```go -package cmd - -import ( - "fmt" - "os" - - homedir "github.com/mitchellh/go-homedir" - "github.com/spf13/cobra" - "github.com/spf13/viper" -) - -var ( - // Used for flags. - cfgFile string - userLicense string - - rootCmd = &cobra.Command{ - Use: "cobra", - Short: "A generator for Cobra based Applications", - Long: `Cobra is a CLI library for Go that empowers applications. -This application is a tool to generate the needed files -to quickly create a Cobra application.`, - } -) - -// Execute executes the root command. -func Execute() error { - return rootCmd.Execute() -} - -func init() { - cobra.OnInitialize(initConfig) - - rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.cobra.yaml)") - rootCmd.PersistentFlags().StringP("author", "a", "YOUR NAME", "author name for copyright attribution") - rootCmd.PersistentFlags().StringVarP(&userLicense, "license", "l", "", "name of license for the project") - rootCmd.PersistentFlags().Bool("viper", true, "use Viper for configuration") - viper.BindPFlag("author", rootCmd.PersistentFlags().Lookup("author")) - viper.BindPFlag("useViper", rootCmd.PersistentFlags().Lookup("viper")) - viper.SetDefault("author", "NAME HERE ") - viper.SetDefault("license", "apache") - - rootCmd.AddCommand(addCmd) - rootCmd.AddCommand(initCmd) -} - -func er(msg interface{}) { - fmt.Println("Error:", msg) - os.Exit(1) -} - -func initConfig() { - if cfgFile != "" { - // Use config file from the flag. - viper.SetConfigFile(cfgFile) - } else { - // Find home directory. - home, err := homedir.Dir() - if err != nil { - er(err) - } - - // Search config in home directory with name ".cobra" (without extension). - viper.AddConfigPath(home) - viper.SetConfigName(".cobra") - } - - viper.AutomaticEnv() - - if err := viper.ReadInConfig(); err == nil { - fmt.Println("Using config file:", viper.ConfigFileUsed()) - } -} -``` - -### Create your main.go - -With the root command you need to have your main function execute it. -Execute should be run on the root for clarity, though it can be called on any command. - -In a Cobra app, typically the main.go file is very bare. It serves, one purpose, to initialize Cobra. - -```go -package main - -import ( - "{pathToYourApp}/cmd" -) - -func main() { - cmd.Execute() -} -``` - -### Create additional commands - -Additional commands can be defined and typically are each given their own file -inside of the cmd/ directory. - -If you wanted to create a version command you would create cmd/version.go and -populate it with the following: - -```go -package cmd - -import ( - "fmt" - - "github.com/spf13/cobra" -) - -func init() { - rootCmd.AddCommand(versionCmd) -} - -var versionCmd = &cobra.Command{ - Use: "version", - Short: "Print the version number of Hugo", - Long: `All software has versions. This is Hugo's`, - Run: func(cmd *cobra.Command, args []string) { - fmt.Println("Hugo Static Site Generator v0.9 -- HEAD") - }, -} -``` - -## Working with Flags - -Flags provide modifiers to control how the action command operates. - -### Assign flags to a command - -Since the flags are defined and used in different locations, we need to -define a variable outside with the correct scope to assign the flag to -work with. - -```go -var Verbose bool -var Source string -``` - -There are two different approaches to assign a flag. - -### Persistent Flags - -A flag can be 'persistent' meaning that this flag will be available to the -command it's assigned to as well as every command under that command. For -global flags, assign a flag as a persistent flag on the root. - -```go -rootCmd.PersistentFlags().BoolVarP(&Verbose, "verbose", "v", false, "verbose output") -``` - -### Local Flags - -A flag can also be assigned locally which will only apply to that specific command. - -```go -localCmd.Flags().StringVarP(&Source, "source", "s", "", "Source directory to read from") -``` - -### Local Flag on Parent Commands - -By default Cobra only parses local flags on the target command, any local flags on -parent commands are ignored. By enabling `Command.TraverseChildren` Cobra will -parse local flags on each command before executing the target command. - -```go -command := cobra.Command{ - Use: "print [OPTIONS] [COMMANDS]", - TraverseChildren: true, -} -``` - -### Bind Flags with Config - -You can also bind your flags with [viper](https://github.com/spf13/viper): -```go -var author string - -func init() { - rootCmd.PersistentFlags().StringVar(&author, "author", "YOUR NAME", "Author name for copyright attribution") - viper.BindPFlag("author", rootCmd.PersistentFlags().Lookup("author")) -} -``` - -In this example the persistent flag `author` is bound with `viper`. -**Note**, that the variable `author` will not be set to the value from config, -when the `--author` flag is not provided by user. - -More in [viper documentation](https://github.com/spf13/viper#working-with-flags). - -### Required flags - -Flags are optional by default. If instead you wish your command to report an error -when a flag has not been set, mark it as required: -```go -rootCmd.Flags().StringVarP(&Region, "region", "r", "", "AWS region (required)") -rootCmd.MarkFlagRequired("region") -``` - -## Positional and Custom Arguments - -Validation of positional arguments can be specified using the `Args` field -of `Command`. - -The following validators are built in: - -- `NoArgs` - the command will report an error if there are any positional args. -- `ArbitraryArgs` - the command will accept any args. -- `OnlyValidArgs` - the command will report an error if there are any positional args that are not in the `ValidArgs` field of `Command`. -- `MinimumNArgs(int)` - the command will report an error if there are not at least N positional args. -- `MaximumNArgs(int)` - the command will report an error if there are more than N positional args. -- `ExactArgs(int)` - the command will report an error if there are not exactly N positional args. -- `ExactValidArgs(int)` - the command will report an error if there are not exactly N positional args OR if there are any positional args that are not in the `ValidArgs` field of `Command` -- `RangeArgs(min, max)` - the command will report an error if the number of args is not between the minimum and maximum number of expected args. - -An example of setting the custom validator: - -```go -var cmd = &cobra.Command{ - Short: "hello", - Args: func(cmd *cobra.Command, args []string) error { - if len(args) < 1 { - return errors.New("requires a color argument") - } - if myapp.IsValidColor(args[0]) { - return nil - } - return fmt.Errorf("invalid color specified: %s", args[0]) - }, - Run: func(cmd *cobra.Command, args []string) { - fmt.Println("Hello, World!") - }, -} -``` - -## Example - -In the example below, we have defined three commands. Two are at the top level -and one (cmdTimes) is a child of one of the top commands. In this case the root -is not executable meaning that a subcommand is required. This is accomplished -by not providing a 'Run' for the 'rootCmd'. - -We have only defined one flag for a single command. - -More documentation about flags is available at https://github.com/spf13/pflag - -```go -package main - -import ( - "fmt" - "strings" - - "github.com/spf13/cobra" -) - -func main() { - var echoTimes int - - var cmdPrint = &cobra.Command{ - Use: "print [string to print]", - Short: "Print anything to the screen", - Long: `print is for printing anything back to the screen. -For many years people have printed back to the screen.`, - Args: cobra.MinimumNArgs(1), - Run: func(cmd *cobra.Command, args []string) { - fmt.Println("Print: " + strings.Join(args, " ")) - }, - } - - var cmdEcho = &cobra.Command{ - Use: "echo [string to echo]", - Short: "Echo anything to the screen", - Long: `echo is for echoing anything back. -Echo works a lot like print, except it has a child command.`, - Args: cobra.MinimumNArgs(1), - Run: func(cmd *cobra.Command, args []string) { - fmt.Println("Echo: " + strings.Join(args, " ")) - }, - } - - var cmdTimes = &cobra.Command{ - Use: "times [string to echo]", - Short: "Echo anything to the screen more times", - Long: `echo things multiple times back to the user by providing -a count and a string.`, - Args: cobra.MinimumNArgs(1), - Run: func(cmd *cobra.Command, args []string) { - for i := 0; i < echoTimes; i++ { - fmt.Println("Echo: " + strings.Join(args, " ")) - } - }, - } - - cmdTimes.Flags().IntVarP(&echoTimes, "times", "t", 1, "times to echo the input") - - var rootCmd = &cobra.Command{Use: "app"} - rootCmd.AddCommand(cmdPrint, cmdEcho) - cmdEcho.AddCommand(cmdTimes) - rootCmd.Execute() -} -``` - -For a more complete example of a larger application, please checkout [Hugo](http://gohugo.io/). - -## Help Command - -Cobra automatically adds a help command to your application when you have subcommands. -This will be called when a user runs 'app help'. Additionally, help will also -support all other commands as input. Say, for instance, you have a command called -'create' without any additional configuration; Cobra will work when 'app help -create' is called. Every command will automatically have the '--help' flag added. - -### Example - -The following output is automatically generated by Cobra. Nothing beyond the -command and flag definitions are needed. - - $ cobra help - - Cobra is a CLI library for Go that empowers applications. - This application is a tool to generate the needed files - to quickly create a Cobra application. - - Usage: - cobra [command] - - Available Commands: - add Add a command to a Cobra Application - help Help about any command - init Initialize a Cobra Application - - Flags: - -a, --author string author name for copyright attribution (default "YOUR NAME") - --config string config file (default is $HOME/.cobra.yaml) - -h, --help help for cobra - -l, --license string name of license for the project - --viper use Viper for configuration (default true) - - Use "cobra [command] --help" for more information about a command. - - -Help is just a command like any other. There is no special logic or behavior -around it. In fact, you can provide your own if you want. - -### Defining your own help - -You can provide your own Help command or your own template for the default command to use -with following functions: - -```go -cmd.SetHelpCommand(cmd *Command) -cmd.SetHelpFunc(f func(*Command, []string)) -cmd.SetHelpTemplate(s string) -``` - -The latter two will also apply to any children commands. - -## Usage Message - -When the user provides an invalid flag or invalid command, Cobra responds by -showing the user the 'usage'. - -### Example -You may recognize this from the help above. That's because the default help -embeds the usage as part of its output. - - $ cobra --invalid - Error: unknown flag: --invalid - Usage: - cobra [command] - - Available Commands: - add Add a command to a Cobra Application - help Help about any command - init Initialize a Cobra Application - - Flags: - -a, --author string author name for copyright attribution (default "YOUR NAME") - --config string config file (default is $HOME/.cobra.yaml) - -h, --help help for cobra - -l, --license string name of license for the project - --viper use Viper for configuration (default true) - - Use "cobra [command] --help" for more information about a command. - -### Defining your own usage -You can provide your own usage function or template for Cobra to use. -Like help, the function and template are overridable through public methods: - -```go -cmd.SetUsageFunc(f func(*Command) error) -cmd.SetUsageTemplate(s string) -``` - -## Version Flag - -Cobra adds a top-level '--version' flag if the Version field is set on the root command. -Running an application with the '--version' flag will print the version to stdout using -the version template. The template can be customized using the -`cmd.SetVersionTemplate(s string)` function. - -## PreRun and PostRun Hooks - -It is possible to run functions before or after the main `Run` function of your command. The `PersistentPreRun` and `PreRun` functions will be executed before `Run`. `PersistentPostRun` and `PostRun` will be executed after `Run`. The `Persistent*Run` functions will be inherited by children if they do not declare their own. These functions are run in the following order: - -- `PersistentPreRun` -- `PreRun` -- `Run` -- `PostRun` -- `PersistentPostRun` - -An example of two commands which use all of these features is below. When the subcommand is executed, it will run the root command's `PersistentPreRun` but not the root command's `PersistentPostRun`: - -```go -package main - -import ( - "fmt" - - "github.com/spf13/cobra" -) - -func main() { - - var rootCmd = &cobra.Command{ - Use: "root [sub]", - Short: "My root command", - PersistentPreRun: func(cmd *cobra.Command, args []string) { - fmt.Printf("Inside rootCmd PersistentPreRun with args: %v\n", args) - }, - PreRun: func(cmd *cobra.Command, args []string) { - fmt.Printf("Inside rootCmd PreRun with args: %v\n", args) - }, - Run: func(cmd *cobra.Command, args []string) { - fmt.Printf("Inside rootCmd Run with args: %v\n", args) - }, - PostRun: func(cmd *cobra.Command, args []string) { - fmt.Printf("Inside rootCmd PostRun with args: %v\n", args) - }, - PersistentPostRun: func(cmd *cobra.Command, args []string) { - fmt.Printf("Inside rootCmd PersistentPostRun with args: %v\n", args) - }, - } - - var subCmd = &cobra.Command{ - Use: "sub [no options!]", - Short: "My subcommand", - PreRun: func(cmd *cobra.Command, args []string) { - fmt.Printf("Inside subCmd PreRun with args: %v\n", args) - }, - Run: func(cmd *cobra.Command, args []string) { - fmt.Printf("Inside subCmd Run with args: %v\n", args) - }, - PostRun: func(cmd *cobra.Command, args []string) { - fmt.Printf("Inside subCmd PostRun with args: %v\n", args) - }, - PersistentPostRun: func(cmd *cobra.Command, args []string) { - fmt.Printf("Inside subCmd PersistentPostRun with args: %v\n", args) - }, - } - - rootCmd.AddCommand(subCmd) - - rootCmd.SetArgs([]string{""}) - rootCmd.Execute() - fmt.Println() - rootCmd.SetArgs([]string{"sub", "arg1", "arg2"}) - rootCmd.Execute() -} -``` - -Output: -``` -Inside rootCmd PersistentPreRun with args: [] -Inside rootCmd PreRun with args: [] -Inside rootCmd Run with args: [] -Inside rootCmd PostRun with args: [] -Inside rootCmd PersistentPostRun with args: [] - -Inside rootCmd PersistentPreRun with args: [arg1 arg2] -Inside subCmd PreRun with args: [arg1 arg2] -Inside subCmd Run with args: [arg1 arg2] -Inside subCmd PostRun with args: [arg1 arg2] -Inside subCmd PersistentPostRun with args: [arg1 arg2] -``` - -## Suggestions when "unknown command" happens - -Cobra will print automatic suggestions when "unknown command" errors happen. This allows Cobra to behave similarly to the `git` command when a typo happens. For example: - -``` -$ hugo srever -Error: unknown command "srever" for "hugo" - -Did you mean this? - server - -Run 'hugo --help' for usage. -``` - -Suggestions are automatic based on every subcommand registered and use an implementation of [Levenshtein distance](http://en.wikipedia.org/wiki/Levenshtein_distance). Every registered command that matches a minimum distance of 2 (ignoring case) will be displayed as a suggestion. - -If you need to disable suggestions or tweak the string distance in your command, use: - -```go -command.DisableSuggestions = true -``` - -or - -```go -command.SuggestionsMinimumDistance = 1 -``` - -You can also explicitly set names for which a given command will be suggested using the `SuggestFor` attribute. This allows suggestions for strings that are not close in terms of string distance, but makes sense in your set of commands and for some which you don't want aliases. Example: - -``` -$ kubectl remove -Error: unknown command "remove" for "kubectl" - -Did you mean this? - delete - -Run 'kubectl help' for usage. -``` - -## Generating documentation for your command - -Cobra can generate documentation based on subcommands, flags, etc. in the following formats: - -- [Markdown](doc/md_docs.md) -- [ReStructured Text](doc/rest_docs.md) -- [Man Page](doc/man_docs.md) - -## Generating bash completions - -Cobra can generate a bash-completion file. If you add more information to your command, these completions can be amazingly powerful and flexible. Read more about it in [Bash Completions](bash_completions.md). - -## Generating zsh completions - -Cobra can generate zsh-completion file. Read more about it in -[Zsh Completions](zsh_completions.md). - -# Contributing +# Usage -1. Fork it -2. Download your fork to your PC (`git clone https://github.com/your_username/cobra && cd cobra`) -3. Create your feature branch (`git checkout -b my-new-feature`) -4. Make changes and add them (`git add .`) -5. Commit your changes (`git commit -m 'Add some feature'`) -6. Push to the branch (`git push origin my-new-feature`) -7. Create new pull request +See [User Guide](user_guide.md). # License diff --git a/vendor/github.com/spf13/cobra/bash_completions.go b/vendor/github.com/spf13/cobra/bash_completions.go index 1e27188..733f4d1 100644 --- a/vendor/github.com/spf13/cobra/bash_completions.go +++ b/vendor/github.com/spf13/cobra/bash_completions.go @@ -19,9 +19,9 @@ const ( BashCompSubdirsInDir = "cobra_annotation_bash_completion_subdirs_in_dir" ) -func writePreamble(buf *bytes.Buffer, name string) { - buf.WriteString(fmt.Sprintf("# bash completion for %-36s -*- shell-script -*-\n", name)) - buf.WriteString(fmt.Sprintf(` +func writePreamble(buf io.StringWriter, name string) { + WriteStringAndCheck(buf, fmt.Sprintf("# bash completion for %-36s -*- shell-script -*-\n", name)) + WriteStringAndCheck(buf, fmt.Sprintf(` __%[1]s_debug() { if [[ -n ${BASH_COMP_DEBUG_FILE} ]]; then @@ -62,6 +62,12 @@ __%[1]s_handle_go_custom_completion() { __%[1]s_debug "${FUNCNAME[0]}: cur is ${cur}, words[*] is ${words[*]}, #words[@] is ${#words[@]}" + local shellCompDirectiveError=%[3]d + local shellCompDirectiveNoSpace=%[4]d + local shellCompDirectiveNoFileComp=%[5]d + local shellCompDirectiveFilterFileExt=%[6]d + local shellCompDirectiveFilterDirs=%[7]d + local out requestComp lastParam lastChar comp directive args # Prepare the command to request completions for the program. @@ -95,24 +101,50 @@ __%[1]s_handle_go_custom_completion() __%[1]s_debug "${FUNCNAME[0]}: the completion directive is: ${directive}" __%[1]s_debug "${FUNCNAME[0]}: the completions are: ${out[*]}" - if [ $((directive & %[3]d)) -ne 0 ]; then + if [ $((directive & shellCompDirectiveError)) -ne 0 ]; then # Error code. No completion. __%[1]s_debug "${FUNCNAME[0]}: received error from custom completion go code" return else - if [ $((directive & %[4]d)) -ne 0 ]; then + if [ $((directive & shellCompDirectiveNoSpace)) -ne 0 ]; then if [[ $(type -t compopt) = "builtin" ]]; then __%[1]s_debug "${FUNCNAME[0]}: activating no space" compopt -o nospace fi fi - if [ $((directive & %[5]d)) -ne 0 ]; then + if [ $((directive & shellCompDirectiveNoFileComp)) -ne 0 ]; then if [[ $(type -t compopt) = "builtin" ]]; then __%[1]s_debug "${FUNCNAME[0]}: activating no file completion" compopt +o default fi fi + fi + if [ $((directive & shellCompDirectiveFilterFileExt)) -ne 0 ]; then + # File extension filtering + local fullFilter filter filteringCmd + # Do not use quotes around the $out variable or else newline + # characters will be kept. + for filter in ${out[*]}; do + fullFilter+="$filter|" + done + + filteringCmd="_filedir $fullFilter" + __%[1]s_debug "File filtering command: $filteringCmd" + $filteringCmd + elif [ $((directive & shellCompDirectiveFilterDirs)) -ne 0 ]; then + # File completion for directories only + local subDir + # Use printf to strip any trailing newline + subdir=$(printf "%%s" "${out[0]}") + if [ -n "$subdir" ]; then + __%[1]s_debug "Listing directories in $subdir" + __%[1]s_handle_subdirs_in_dir_flag "$subdir" + else + __%[1]s_debug "Listing directories in ." + _filedir -d + fi + else while IFS='' read -r comp; do COMPREPLY+=("$comp") done < <(compgen -W "${out[*]}" -- "$cur") @@ -181,10 +213,9 @@ __%[1]s_handle_reply() local completions completions=("${commands[@]}") if [[ ${#must_have_one_noun[@]} -ne 0 ]]; then - completions=("${must_have_one_noun[@]}") + completions+=("${must_have_one_noun[@]}") elif [[ -n "${has_completion_function}" ]]; then # if a go completion function is provided, defer to that function - completions=() __%[1]s_handle_go_custom_completion fi if [[ ${#must_have_one_flag[@]} -ne 0 ]]; then @@ -344,14 +375,16 @@ __%[1]s_handle_word() __%[1]s_handle_word } -`, name, ShellCompNoDescRequestCmd, ShellCompDirectiveError, ShellCompDirectiveNoSpace, ShellCompDirectiveNoFileComp)) +`, name, ShellCompNoDescRequestCmd, + ShellCompDirectiveError, ShellCompDirectiveNoSpace, ShellCompDirectiveNoFileComp, + ShellCompDirectiveFilterFileExt, ShellCompDirectiveFilterDirs)) } -func writePostscript(buf *bytes.Buffer, name string) { +func writePostscript(buf io.StringWriter, name string) { name = strings.Replace(name, ":", "__", -1) - buf.WriteString(fmt.Sprintf("__start_%s()\n", name)) - buf.WriteString(fmt.Sprintf(`{ - local cur prev words cword + WriteStringAndCheck(buf, fmt.Sprintf("__start_%s()\n", name)) + WriteStringAndCheck(buf, fmt.Sprintf(`{ + local cur prev words cword split declare -A flaghash 2>/dev/null || : declare -A aliashash 2>/dev/null || : if declare -F _init_completion >/dev/null 2>&1; then @@ -367,43 +400,45 @@ func writePostscript(buf *bytes.Buffer, name string) { local flags_with_completion=() local flags_completion=() local commands=("%[1]s") + local command_aliases=() local must_have_one_flag=() local must_have_one_noun=() local has_completion_function local last_command local nouns=() + local noun_aliases=() __%[1]s_handle_word } `, name)) - buf.WriteString(fmt.Sprintf(`if [[ $(type -t compopt) = "builtin" ]]; then + WriteStringAndCheck(buf, fmt.Sprintf(`if [[ $(type -t compopt) = "builtin" ]]; then complete -o default -F __start_%s %s else complete -o default -o nospace -F __start_%s %s fi `, name, name, name, name)) - buf.WriteString("# ex: ts=4 sw=4 et filetype=sh\n") + WriteStringAndCheck(buf, "# ex: ts=4 sw=4 et filetype=sh\n") } -func writeCommands(buf *bytes.Buffer, cmd *Command) { - buf.WriteString(" commands=()\n") +func writeCommands(buf io.StringWriter, cmd *Command) { + WriteStringAndCheck(buf, " commands=()\n") for _, c := range cmd.Commands() { - if !c.IsAvailableCommand() || c == cmd.helpCommand { + if !c.IsAvailableCommand() && c != cmd.helpCommand { continue } - buf.WriteString(fmt.Sprintf(" commands+=(%q)\n", c.Name())) + WriteStringAndCheck(buf, fmt.Sprintf(" commands+=(%q)\n", c.Name())) writeCmdAliases(buf, c) } - buf.WriteString("\n") + WriteStringAndCheck(buf, "\n") } -func writeFlagHandler(buf *bytes.Buffer, name string, annotations map[string][]string, cmd *Command) { +func writeFlagHandler(buf io.StringWriter, name string, annotations map[string][]string, cmd *Command) { for key, value := range annotations { switch key { case BashCompFilenameExt: - buf.WriteString(fmt.Sprintf(" flags_with_completion+=(%q)\n", name)) + WriteStringAndCheck(buf, fmt.Sprintf(" flags_with_completion+=(%q)\n", name)) var ext string if len(value) > 0 { @@ -411,17 +446,18 @@ func writeFlagHandler(buf *bytes.Buffer, name string, annotations map[string][]s } else { ext = "_filedir" } - buf.WriteString(fmt.Sprintf(" flags_completion+=(%q)\n", ext)) + WriteStringAndCheck(buf, fmt.Sprintf(" flags_completion+=(%q)\n", ext)) case BashCompCustom: - buf.WriteString(fmt.Sprintf(" flags_with_completion+=(%q)\n", name)) + WriteStringAndCheck(buf, fmt.Sprintf(" flags_with_completion+=(%q)\n", name)) + if len(value) > 0 { handlers := strings.Join(value, "; ") - buf.WriteString(fmt.Sprintf(" flags_completion+=(%q)\n", handlers)) + WriteStringAndCheck(buf, fmt.Sprintf(" flags_completion+=(%q)\n", handlers)) } else { - buf.WriteString(" flags_completion+=(:)\n") + WriteStringAndCheck(buf, " flags_completion+=(:)\n") } case BashCompSubdirsInDir: - buf.WriteString(fmt.Sprintf(" flags_with_completion+=(%q)\n", name)) + WriteStringAndCheck(buf, fmt.Sprintf(" flags_with_completion+=(%q)\n", name)) var ext string if len(value) == 1 { @@ -429,49 +465,55 @@ func writeFlagHandler(buf *bytes.Buffer, name string, annotations map[string][]s } else { ext = "_filedir -d" } - buf.WriteString(fmt.Sprintf(" flags_completion+=(%q)\n", ext)) + WriteStringAndCheck(buf, fmt.Sprintf(" flags_completion+=(%q)\n", ext)) } } } -func writeShortFlag(buf *bytes.Buffer, flag *pflag.Flag, cmd *Command) { +const cbn = "\")\n" + +func writeShortFlag(buf io.StringWriter, flag *pflag.Flag, cmd *Command) { name := flag.Shorthand format := " " if len(flag.NoOptDefVal) == 0 { format += "two_word_" } - format += "flags+=(\"-%s\")\n" - buf.WriteString(fmt.Sprintf(format, name)) + format += "flags+=(\"-%s" + cbn + WriteStringAndCheck(buf, fmt.Sprintf(format, name)) writeFlagHandler(buf, "-"+name, flag.Annotations, cmd) } -func writeFlag(buf *bytes.Buffer, flag *pflag.Flag, cmd *Command) { +func writeFlag(buf io.StringWriter, flag *pflag.Flag, cmd *Command) { name := flag.Name format := " flags+=(\"--%s" if len(flag.NoOptDefVal) == 0 { format += "=" } - format += "\")\n" - buf.WriteString(fmt.Sprintf(format, name)) + format += cbn + WriteStringAndCheck(buf, fmt.Sprintf(format, name)) if len(flag.NoOptDefVal) == 0 { - format = " two_word_flags+=(\"--%s\")\n" - buf.WriteString(fmt.Sprintf(format, name)) + format = " two_word_flags+=(\"--%s" + cbn + WriteStringAndCheck(buf, fmt.Sprintf(format, name)) } writeFlagHandler(buf, "--"+name, flag.Annotations, cmd) } -func writeLocalNonPersistentFlag(buf *bytes.Buffer, flag *pflag.Flag) { +func writeLocalNonPersistentFlag(buf io.StringWriter, flag *pflag.Flag) { name := flag.Name - format := " local_nonpersistent_flags+=(\"--%s" + format := " local_nonpersistent_flags+=(\"--%[1]s" + cbn if len(flag.NoOptDefVal) == 0 { - format += "=" + format += " local_nonpersistent_flags+=(\"--%[1]s=" + cbn + } + WriteStringAndCheck(buf, fmt.Sprintf(format, name)) + if len(flag.Shorthand) > 0 { + WriteStringAndCheck(buf, fmt.Sprintf(" local_nonpersistent_flags+=(\"-%s\")\n", flag.Shorthand)) } - format += "\")\n" - buf.WriteString(fmt.Sprintf(format, name)) } // Setup annotations for go completions for registered flags func prepareCustomAnnotationsForFlags(cmd *Command) { + flagCompletionMutex.RLock() + defer flagCompletionMutex.RUnlock() for flag := range flagCompletionFunctions { // Make sure the completion script calls the __*_go_custom_completion function for // every registered flag. We need to do this here (and not when the flag was registered @@ -484,9 +526,9 @@ func prepareCustomAnnotationsForFlags(cmd *Command) { } } -func writeFlags(buf *bytes.Buffer, cmd *Command) { +func writeFlags(buf io.StringWriter, cmd *Command) { prepareCustomAnnotationsForFlags(cmd) - buf.WriteString(` flags=() + WriteStringAndCheck(buf, ` flags=() two_word_flags=() local_nonpersistent_flags=() flags_with_completion=() @@ -502,7 +544,9 @@ func writeFlags(buf *bytes.Buffer, cmd *Command) { if len(flag.Shorthand) > 0 { writeShortFlag(buf, flag, cmd) } - if localNonPersistentFlags.Lookup(flag.Name) != nil { + // localNonPersistentFlags are used to stop the completion of subcommands when one is set + // if TraverseChildren is true we should allow to complete subcommands + if localNonPersistentFlags.Lookup(flag.Name) != nil && !cmd.Root().TraverseChildren { writeLocalNonPersistentFlag(buf, flag) } }) @@ -516,11 +560,11 @@ func writeFlags(buf *bytes.Buffer, cmd *Command) { } }) - buf.WriteString("\n") + WriteStringAndCheck(buf, "\n") } -func writeRequiredFlag(buf *bytes.Buffer, cmd *Command) { - buf.WriteString(" must_have_one_flag=()\n") +func writeRequiredFlag(buf io.StringWriter, cmd *Command) { + WriteStringAndCheck(buf, " must_have_one_flag=()\n") flags := cmd.NonInheritedFlags() flags.VisitAll(func(flag *pflag.Flag) { if nonCompletableFlag(flag) { @@ -533,57 +577,57 @@ func writeRequiredFlag(buf *bytes.Buffer, cmd *Command) { if flag.Value.Type() != "bool" { format += "=" } - format += "\")\n" - buf.WriteString(fmt.Sprintf(format, flag.Name)) + format += cbn + WriteStringAndCheck(buf, fmt.Sprintf(format, flag.Name)) if len(flag.Shorthand) > 0 { - buf.WriteString(fmt.Sprintf(" must_have_one_flag+=(\"-%s\")\n", flag.Shorthand)) + WriteStringAndCheck(buf, fmt.Sprintf(" must_have_one_flag+=(\"-%s"+cbn, flag.Shorthand)) } } } }) } -func writeRequiredNouns(buf *bytes.Buffer, cmd *Command) { - buf.WriteString(" must_have_one_noun=()\n") - sort.Sort(sort.StringSlice(cmd.ValidArgs)) +func writeRequiredNouns(buf io.StringWriter, cmd *Command) { + WriteStringAndCheck(buf, " must_have_one_noun=()\n") + sort.Strings(cmd.ValidArgs) for _, value := range cmd.ValidArgs { // Remove any description that may be included following a tab character. // Descriptions are not supported by bash completion. value = strings.Split(value, "\t")[0] - buf.WriteString(fmt.Sprintf(" must_have_one_noun+=(%q)\n", value)) + WriteStringAndCheck(buf, fmt.Sprintf(" must_have_one_noun+=(%q)\n", value)) } if cmd.ValidArgsFunction != nil { - buf.WriteString(" has_completion_function=1\n") + WriteStringAndCheck(buf, " has_completion_function=1\n") } } -func writeCmdAliases(buf *bytes.Buffer, cmd *Command) { +func writeCmdAliases(buf io.StringWriter, cmd *Command) { if len(cmd.Aliases) == 0 { return } - sort.Sort(sort.StringSlice(cmd.Aliases)) + sort.Strings(cmd.Aliases) - buf.WriteString(fmt.Sprint(` if [[ -z "${BASH_VERSION}" || "${BASH_VERSINFO[0]}" -gt 3 ]]; then`, "\n")) + WriteStringAndCheck(buf, fmt.Sprint(` if [[ -z "${BASH_VERSION}" || "${BASH_VERSINFO[0]}" -gt 3 ]]; then`, "\n")) for _, value := range cmd.Aliases { - buf.WriteString(fmt.Sprintf(" command_aliases+=(%q)\n", value)) - buf.WriteString(fmt.Sprintf(" aliashash[%q]=%q\n", value, cmd.Name())) + WriteStringAndCheck(buf, fmt.Sprintf(" command_aliases+=(%q)\n", value)) + WriteStringAndCheck(buf, fmt.Sprintf(" aliashash[%q]=%q\n", value, cmd.Name())) } - buf.WriteString(` fi`) - buf.WriteString("\n") + WriteStringAndCheck(buf, ` fi`) + WriteStringAndCheck(buf, "\n") } -func writeArgAliases(buf *bytes.Buffer, cmd *Command) { - buf.WriteString(" noun_aliases=()\n") - sort.Sort(sort.StringSlice(cmd.ArgAliases)) +func writeArgAliases(buf io.StringWriter, cmd *Command) { + WriteStringAndCheck(buf, " noun_aliases=()\n") + sort.Strings(cmd.ArgAliases) for _, value := range cmd.ArgAliases { - buf.WriteString(fmt.Sprintf(" noun_aliases+=(%q)\n", value)) + WriteStringAndCheck(buf, fmt.Sprintf(" noun_aliases+=(%q)\n", value)) } } -func gen(buf *bytes.Buffer, cmd *Command) { +func gen(buf io.StringWriter, cmd *Command) { for _, c := range cmd.Commands() { - if !c.IsAvailableCommand() || c == cmd.helpCommand { + if !c.IsAvailableCommand() && c != cmd.helpCommand { continue } gen(buf, c) @@ -593,22 +637,22 @@ func gen(buf *bytes.Buffer, cmd *Command) { commandName = strings.Replace(commandName, ":", "__", -1) if cmd.Root() == cmd { - buf.WriteString(fmt.Sprintf("_%s_root_command()\n{\n", commandName)) + WriteStringAndCheck(buf, fmt.Sprintf("_%s_root_command()\n{\n", commandName)) } else { - buf.WriteString(fmt.Sprintf("_%s()\n{\n", commandName)) + WriteStringAndCheck(buf, fmt.Sprintf("_%s()\n{\n", commandName)) } - buf.WriteString(fmt.Sprintf(" last_command=%q\n", commandName)) - buf.WriteString("\n") - buf.WriteString(" command_aliases=()\n") - buf.WriteString("\n") + WriteStringAndCheck(buf, fmt.Sprintf(" last_command=%q\n", commandName)) + WriteStringAndCheck(buf, "\n") + WriteStringAndCheck(buf, " command_aliases=()\n") + WriteStringAndCheck(buf, "\n") writeCommands(buf, cmd) writeFlags(buf, cmd) writeRequiredFlag(buf, cmd) writeRequiredNouns(buf, cmd) writeArgAliases(buf, cmd) - buf.WriteString("}\n\n") + WriteStringAndCheck(buf, "}\n\n") } // GenBashCompletion generates bash completion file and writes to the passed writer. diff --git a/vendor/github.com/spf13/cobra/bash_completions.md b/vendor/github.com/spf13/cobra/bash_completions.md index e61a3a6..52919b2 100644 --- a/vendor/github.com/spf13/cobra/bash_completions.md +++ b/vendor/github.com/spf13/cobra/bash_completions.md @@ -1,206 +1,16 @@ -# Generating Bash Completions For Your Own cobra.Command +# Generating Bash Completions For Your cobra.Command -If you are using the generator you can create a completion command by running +Please refer to [Shell Completions](shell_completions.md) for details. -```bash -cobra add completion -``` - -Update the help text show how to install the bash_completion Linux show here [Kubectl docs show mac options](https://kubernetes.io/docs/tasks/tools/install-kubectl/#enabling-shell-autocompletion) - -Writing the shell script to stdout allows the most flexible use. - -```go -// completionCmd represents the completion command -var completionCmd = &cobra.Command{ - Use: "completion", - Short: "Generates bash completion scripts", - Long: `To load completion run - -. <(bitbucket completion) - -To configure your bash shell to load completions for each session add to your bashrc - -# ~/.bashrc or ~/.profile -. <(bitbucket completion) -`, - Run: func(cmd *cobra.Command, args []string) { - rootCmd.GenBashCompletion(os.Stdout); - }, -} -``` - -**Note:** The cobra generator may include messages printed to stdout for example if the config file is loaded, this will break the auto complete script - - -## Example from kubectl - -Generating bash completions from a cobra command is incredibly easy. An actual program which does so for the kubernetes kubectl binary is as follows: - -```go -package main - -import ( - "io/ioutil" - "os" - - "k8s.io/kubernetes/pkg/kubectl/cmd" - "k8s.io/kubernetes/pkg/kubectl/cmd/util" -) - -func main() { - kubectl := cmd.NewKubectlCommand(util.NewFactory(nil), os.Stdin, ioutil.Discard, ioutil.Discard) - kubectl.GenBashCompletionFile("out.sh") -} -``` - -`out.sh` will get you completions of subcommands and flags. Copy it to `/etc/bash_completion.d/` as described [here](https://debian-administration.org/article/316/An_introduction_to_bash_completion_part_1) and reset your terminal to use autocompletion. If you make additional annotations to your code, you can get even more intelligent and flexible behavior. - -## Have the completions code complete your 'nouns' - -### Static completion of nouns - -This method allows you to provide a pre-defined list of completion choices for your nouns using the `validArgs` field. -For example, if you want `kubectl get [tab][tab]` to show a list of valid "nouns" you have to set them. Simplified code from `kubectl get` looks like: - -```go -validArgs []string = { "pod", "node", "service", "replicationcontroller" } - -cmd := &cobra.Command{ - Use: "get [(-o|--output=)json|yaml|template|...] (RESOURCE [NAME] | RESOURCE/NAME ...)", - Short: "Display one or many resources", - Long: get_long, - Example: get_example, - Run: func(cmd *cobra.Command, args []string) { - err := RunGet(f, out, cmd, args) - util.CheckErr(err) - }, - ValidArgs: validArgs, -} -``` - -Notice we put the "ValidArgs" on the "get" subcommand. Doing so will give results like - -```bash -# kubectl get [tab][tab] -node pod replicationcontroller service -``` - -### Plural form and shortcuts for nouns - -If your nouns have a number of aliases, you can define them alongside `ValidArgs` using `ArgAliases`: - -```go -argAliases []string = { "pods", "nodes", "services", "svc", "replicationcontrollers", "rc" } - -cmd := &cobra.Command{ - ... - ValidArgs: validArgs, - ArgAliases: argAliases -} -``` - -The aliases are not shown to the user on tab completion, but they are accepted as valid nouns by -the completion algorithm if entered manually, e.g. in: - -```bash -# kubectl get rc [tab][tab] -backend frontend database -``` - -Note that without declaring `rc` as an alias, the completion algorithm would show the list of nouns -in this example again instead of the replication controllers. - -### Dynamic completion of nouns - -In some cases it is not possible to provide a list of possible completions in advance. Instead, the list of completions must be determined at execution-time. Cobra provides two ways of defining such dynamic completion of nouns. Note that both these methods can be used along-side each other as long as they are not both used for the same command. - -**Note**: *Custom Completions written in Go* will automatically work for other shell-completion scripts (e.g., Fish shell), while *Custom Completions written in Bash* will only work for Bash shell-completion. It is therefore recommended to use *Custom Completions written in Go*. - -#### 1. Custom completions of nouns written in Go - -In a similar fashion as for static completions, you can use the `ValidArgsFunction` field to provide a Go function that Cobra will execute when it needs the list of completion choices for the nouns of a command. Note that either `ValidArgs` or `ValidArgsFunction` can be used for a single cobra command, but not both. -Simplified code from `helm status` looks like: - -```go -cmd := &cobra.Command{ - Use: "status RELEASE_NAME", - Short: "Display the status of the named release", - Long: status_long, - RunE: func(cmd *cobra.Command, args []string) { - RunGet(args[0]) - }, - ValidArgsFunction: func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) { - if len(args) != 0 { - return nil, cobra.ShellCompDirectiveNoFileComp - } - return getReleasesFromCluster(toComplete), cobra.ShellCompDirectiveNoFileComp - }, -} -``` -Where `getReleasesFromCluster()` is a Go function that obtains the list of current Helm releases running on the Kubernetes cluster. -Notice we put the `ValidArgsFunction` on the `status` subcommand. Let's assume the Helm releases on the cluster are: `harbor`, `notary`, `rook` and `thanos` then this dynamic completion will give results like - -```bash -# helm status [tab][tab] -harbor notary rook thanos -``` -You may have noticed the use of `cobra.ShellCompDirective`. These directives are bit fields allowing to control some shell completion behaviors for your particular completion. You can combine them with the bit-or operator such as `cobra.ShellCompDirectiveNoSpace | cobra.ShellCompDirectiveNoFileComp` -```go -// Indicates an error occurred and completions should be ignored. -ShellCompDirectiveError -// Indicates that the shell should not add a space after the completion, -// even if there is a single completion provided. -ShellCompDirectiveNoSpace -// Indicates that the shell should not provide file completion even when -// no completion is provided. -// This currently does not work for zsh or bash < 4 -ShellCompDirectiveNoFileComp -// Indicates that the shell will perform its default behavior after completions -// have been provided (this implies !ShellCompDirectiveNoSpace && !ShellCompDirectiveNoFileComp). -ShellCompDirectiveDefault -``` +## Bash legacy dynamic completions -When using the `ValidArgsFunction`, Cobra will call your registered function after having parsed all flags and arguments provided in the command-line. You therefore don't need to do this parsing yourself. For example, when a user calls `helm status --namespace my-rook-ns [tab][tab]`, Cobra will call your registered `ValidArgsFunction` after having parsed the `--namespace` flag, as it would have done when calling the `RunE` function. +For backward compatibility, Cobra still supports its legacy dynamic completion solution (described below). Unlike the `ValidArgsFunction` solution, the legacy solution will only work for Bash shell-completion and not for other shells. This legacy solution can be used along-side `ValidArgsFunction` and `RegisterFlagCompletionFunc()`, as long as both solutions are not used for the same command. This provides a path to gradually migrate from the legacy solution to the new solution. -##### Debugging +**Note**: Cobra's default `completion` command uses bash completion V2. If you are currently using Cobra's legacy dynamic completion solution, you should not use the default `completion` command but continue using your own. -Cobra achieves dynamic completions written in Go through the use of a hidden command called by the completion script. To debug your Go completion code, you can call this hidden command directly: -```bash -# helm __complete status har -harbor -:4 -Completion ended with directive: ShellCompDirectiveNoFileComp # This is on stderr -``` -***Important:*** If the noun to complete is empty, you must pass an empty parameter to the `__complete` command: -```bash -# helm __complete status "" -harbor -notary -rook -thanos -:4 -Completion ended with directive: ShellCompDirectiveNoFileComp # This is on stderr -``` -Calling the `__complete` command directly allows you to run the Go debugger to troubleshoot your code. You can also add printouts to your code; Cobra provides the following functions to use for printouts in Go completion code: -```go -// Prints to the completion script debug file (if BASH_COMP_DEBUG_FILE -// is set to a file path) and optionally prints to stderr. -cobra.CompDebug(msg string, printToStdErr bool) { -cobra.CompDebugln(msg string, printToStdErr bool) +The legacy solution allows you to inject bash functions into the bash completion script. Those bash functions are responsible for providing the completion choices for your own completions. -// Prints to the completion script debug file (if BASH_COMP_DEBUG_FILE -// is set to a file path) and to stderr. -cobra.CompError(msg string) -cobra.CompErrorln(msg string) -``` -***Important:*** You should **not** leave traces that print to stdout in your completion code as they will be interpreted as completion choices by the completion script. Instead, use the cobra-provided debugging traces functions mentioned above. - -#### 2. Custom completions of nouns written in Bash - -This method allows you to inject bash functions into the completion script. Those bash functions are responsible for providing the completion choices for your own completions. - -Some more actual code that works in kubernetes: +Some code that works in kubernetes: ```bash const ( @@ -253,93 +63,7 @@ Find more information at https://github.com/GoogleCloudPlatform/kubernetes.`, The `BashCompletionFunction` option is really only valid/useful on the root command. Doing the above will cause `__kubectl_custom_func()` (`___custom_func()`) to be called when the built in processor was unable to find a solution. In the case of kubernetes a valid command might look something like `kubectl get pod [mypod]`. If you type `kubectl get pod [tab][tab]` the `__kubectl_customc_func()` will run because the cobra.Command only understood "kubectl" and "get." `__kubectl_custom_func()` will see that the cobra.Command is "kubectl_get" and will thus call another helper `__kubectl_get_resource()`. `__kubectl_get_resource` will look at the 'nouns' collected. In our example the only noun will be `pod`. So it will call `__kubectl_parse_get pod`. `__kubectl_parse_get` will actually call out to kubernetes and get any pods. It will then set `COMPREPLY` to valid pods! -## Mark flags as required - -Most of the time completions will only show subcommands. But if a flag is required to make a subcommand work, you probably want it to show up when the user types [tab][tab]. Marking a flag as 'Required' is incredibly easy. - -```go -cmd.MarkFlagRequired("pod") -cmd.MarkFlagRequired("container") -``` - -and you'll get something like - -```bash -# kubectl exec [tab][tab][tab] --c --container= -p --pod= -``` - -# Specify valid filename extensions for flags that take a filename - -In this example we use --filename= and expect to get a json or yaml file as the argument. To make this easier we annotate the --filename flag with valid filename extensions. - -```go - annotations := []string{"json", "yaml", "yml"} - annotation := make(map[string][]string) - annotation[cobra.BashCompFilenameExt] = annotations - - flag := &pflag.Flag{ - Name: "filename", - Shorthand: "f", - Usage: usage, - Value: value, - DefValue: value.String(), - Annotations: annotation, - } - cmd.Flags().AddFlag(flag) -``` - -Now when you run a command with this filename flag you'll get something like - -```bash -# kubectl create -f -test/ example/ rpmbuild/ -hello.yml test.json -``` - -So while there are many other files in the CWD it only shows me subdirs and those with valid extensions. - -# Specify custom flag completion - -As for nouns, Cobra provides two ways of defining dynamic completion of flags. Note that both these methods can be used along-side each other as long as they are not both used for the same flag. - -**Note**: *Custom Completions written in Go* will automatically work for other shell-completion scripts (e.g., Fish shell), while *Custom Completions written in Bash* will only work for Bash shell-completion. It is therefore recommended to use *Custom Completions written in Go*. - -## 1. Custom completions of flags written in Go - -To provide a Go function that Cobra will execute when it needs the list of completion choices for a flag, you must register the function in the following manner: - -```go -flagName := "output" -cmd.RegisterFlagCompletionFunc(flagName, func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) { - return []string{"json", "table", "yaml"}, cobra.ShellCompDirectiveDefault -}) -``` -Notice that calling `RegisterFlagCompletionFunc()` is done through the `command` with which the flag is associated. In our example this dynamic completion will give results like so: - -```bash -# helm status --output [tab][tab] -json table yaml -``` - -### Debugging - -You can also easily debug your Go completion code for flags: -```bash -# helm __complete status --output "" -json -table -yaml -:4 -Completion ended with directive: ShellCompDirectiveNoFileComp # This is on stderr -``` -***Important:*** You should **not** leave traces that print to stdout in your completion code as they will be interpreted as completion choices by the completion script. Instead, use the cobra-provided debugging traces functions mentioned in the above section. - -## 2. Custom completions of flags written in Bash - -Alternatively, you can use bash code for flag custom completion. Similar to the filename -completion and filtering using `cobra.BashCompFilenameExt`, you can specify -a custom flag completion bash function with `cobra.BashCompCustom`: +Similarly, for flags: ```go annotation := make(map[string][]string) @@ -367,17 +91,3 @@ __kubectl_get_namespaces() fi } ``` -# Using bash aliases for commands - -You can also configure the `bash aliases` for the commands and they will also support completions. - -```bash -alias aliasname=origcommand -complete -o default -F __start_origcommand aliasname - -# and now when you run `aliasname` completion will make -# suggestions as it did for `origcommand`. - -$) aliasname -completion firstcommand secondcommand -``` diff --git a/vendor/github.com/spf13/cobra/bash_completionsV2.go b/vendor/github.com/spf13/cobra/bash_completionsV2.go new file mode 100644 index 0000000..8859b57 --- /dev/null +++ b/vendor/github.com/spf13/cobra/bash_completionsV2.go @@ -0,0 +1,302 @@ +package cobra + +import ( + "bytes" + "fmt" + "io" + "os" +) + +func (c *Command) genBashCompletion(w io.Writer, includeDesc bool) error { + buf := new(bytes.Buffer) + genBashComp(buf, c.Name(), includeDesc) + _, err := buf.WriteTo(w) + return err +} + +func genBashComp(buf io.StringWriter, name string, includeDesc bool) { + compCmd := ShellCompRequestCmd + if !includeDesc { + compCmd = ShellCompNoDescRequestCmd + } + + WriteStringAndCheck(buf, fmt.Sprintf(`# bash completion V2 for %-36[1]s -*- shell-script -*- + +__%[1]s_debug() +{ + if [[ -n ${BASH_COMP_DEBUG_FILE:-} ]]; then + echo "$*" >> "${BASH_COMP_DEBUG_FILE}" + fi +} + +# Macs have bash3 for which the bash-completion package doesn't include +# _init_completion. This is a minimal version of that function. +__%[1]s_init_completion() +{ + COMPREPLY=() + _get_comp_words_by_ref "$@" cur prev words cword +} + +# This function calls the %[1]s program to obtain the completion +# results and the directive. It fills the 'out' and 'directive' vars. +__%[1]s_get_completion_results() { + local requestComp lastParam lastChar args + + # Prepare the command to request completions for the program. + # Calling ${words[0]} instead of directly %[1]s allows to handle aliases + args=("${words[@]:1}") + requestComp="${words[0]} %[2]s ${args[*]}" + + lastParam=${words[$((${#words[@]}-1))]} + lastChar=${lastParam:$((${#lastParam}-1)):1} + __%[1]s_debug "lastParam ${lastParam}, lastChar ${lastChar}" + + if [ -z "${cur}" ] && [ "${lastChar}" != "=" ]; then + # If the last parameter is complete (there is a space following it) + # We add an extra empty parameter so we can indicate this to the go method. + __%[1]s_debug "Adding extra empty parameter" + requestComp="${requestComp} ''" + fi + + # When completing a flag with an = (e.g., %[1]s -n=) + # bash focuses on the part after the =, so we need to remove + # the flag part from $cur + if [[ "${cur}" == -*=* ]]; then + cur="${cur#*=}" + fi + + __%[1]s_debug "Calling ${requestComp}" + # Use eval to handle any environment variables and such + out=$(eval "${requestComp}" 2>/dev/null) + + # Extract the directive integer at the very end of the output following a colon (:) + directive=${out##*:} + # Remove the directive + out=${out%%:*} + if [ "${directive}" = "${out}" ]; then + # There is not directive specified + directive=0 + fi + __%[1]s_debug "The completion directive is: ${directive}" + __%[1]s_debug "The completions are: ${out[*]}" +} + +__%[1]s_process_completion_results() { + local shellCompDirectiveError=%[3]d + local shellCompDirectiveNoSpace=%[4]d + local shellCompDirectiveNoFileComp=%[5]d + local shellCompDirectiveFilterFileExt=%[6]d + local shellCompDirectiveFilterDirs=%[7]d + + if [ $((directive & shellCompDirectiveError)) -ne 0 ]; then + # Error code. No completion. + __%[1]s_debug "Received error from custom completion go code" + return + else + if [ $((directive & shellCompDirectiveNoSpace)) -ne 0 ]; then + if [[ $(type -t compopt) = "builtin" ]]; then + __%[1]s_debug "Activating no space" + compopt -o nospace + else + __%[1]s_debug "No space directive not supported in this version of bash" + fi + fi + if [ $((directive & shellCompDirectiveNoFileComp)) -ne 0 ]; then + if [[ $(type -t compopt) = "builtin" ]]; then + __%[1]s_debug "Activating no file completion" + compopt +o default + else + __%[1]s_debug "No file completion directive not supported in this version of bash" + fi + fi + fi + + if [ $((directive & shellCompDirectiveFilterFileExt)) -ne 0 ]; then + # File extension filtering + local fullFilter filter filteringCmd + + # Do not use quotes around the $out variable or else newline + # characters will be kept. + for filter in ${out[*]}; do + fullFilter+="$filter|" + done + + filteringCmd="_filedir $fullFilter" + __%[1]s_debug "File filtering command: $filteringCmd" + $filteringCmd + elif [ $((directive & shellCompDirectiveFilterDirs)) -ne 0 ]; then + # File completion for directories only + + # Use printf to strip any trailing newline + local subdir + subdir=$(printf "%%s" "${out[0]}") + if [ -n "$subdir" ]; then + __%[1]s_debug "Listing directories in $subdir" + pushd "$subdir" >/dev/null 2>&1 && _filedir -d && popd >/dev/null 2>&1 || return + else + __%[1]s_debug "Listing directories in ." + _filedir -d + fi + else + __%[1]s_handle_standard_completion_case + fi + + __%[1]s_handle_special_char "$cur" : + __%[1]s_handle_special_char "$cur" = +} + +__%[1]s_handle_standard_completion_case() { + local tab comp + tab=$(printf '\t') + + local longest=0 + # Look for the longest completion so that we can format things nicely + while IFS='' read -r comp; do + # Strip any description before checking the length + comp=${comp%%%%$tab*} + # Only consider the completions that match + comp=$(compgen -W "$comp" -- "$cur") + if ((${#comp}>longest)); then + longest=${#comp} + fi + done < <(printf "%%s\n" "${out[@]}") + + local completions=() + while IFS='' read -r comp; do + if [ -z "$comp" ]; then + continue + fi + + __%[1]s_debug "Original comp: $comp" + comp="$(__%[1]s_format_comp_descriptions "$comp" "$longest")" + __%[1]s_debug "Final comp: $comp" + completions+=("$comp") + done < <(printf "%%s\n" "${out[@]}") + + while IFS='' read -r comp; do + COMPREPLY+=("$comp") + done < <(compgen -W "${completions[*]}" -- "$cur") + + # If there is a single completion left, remove the description text + if [ ${#COMPREPLY[*]} -eq 1 ]; then + __%[1]s_debug "COMPREPLY[0]: ${COMPREPLY[0]}" + comp="${COMPREPLY[0]%%%% *}" + __%[1]s_debug "Removed description from single completion, which is now: ${comp}" + COMPREPLY=() + COMPREPLY+=("$comp") + fi +} + +__%[1]s_handle_special_char() +{ + local comp="$1" + local char=$2 + if [[ "$comp" == *${char}* && "$COMP_WORDBREAKS" == *${char}* ]]; then + local word=${comp%%"${comp##*${char}}"} + local idx=${#COMPREPLY[*]} + while [[ $((--idx)) -ge 0 ]]; do + COMPREPLY[$idx]=${COMPREPLY[$idx]#"$word"} + done + fi +} + +__%[1]s_format_comp_descriptions() +{ + local tab + tab=$(printf '\t') + local comp="$1" + local longest=$2 + + # Properly format the description string which follows a tab character if there is one + if [[ "$comp" == *$tab* ]]; then + desc=${comp#*$tab} + comp=${comp%%%%$tab*} + + # $COLUMNS stores the current shell width. + # Remove an extra 4 because we add 2 spaces and 2 parentheses. + maxdesclength=$(( COLUMNS - longest - 4 )) + + # Make sure we can fit a description of at least 8 characters + # if we are to align the descriptions. + if [[ $maxdesclength -gt 8 ]]; then + # Add the proper number of spaces to align the descriptions + for ((i = ${#comp} ; i < longest ; i++)); do + comp+=" " + done + else + # Don't pad the descriptions so we can fit more text after the completion + maxdesclength=$(( COLUMNS - ${#comp} - 4 )) + fi + + # If there is enough space for any description text, + # truncate the descriptions that are too long for the shell width + if [ $maxdesclength -gt 0 ]; then + if [ ${#desc} -gt $maxdesclength ]; then + desc=${desc:0:$(( maxdesclength - 1 ))} + desc+="…" + fi + comp+=" ($desc)" + fi + fi + + # Must use printf to escape all special characters + printf "%%q" "${comp}" +} + +__start_%[1]s() +{ + local cur prev words cword split + + COMPREPLY=() + + # Call _init_completion from the bash-completion package + # to prepare the arguments properly + if declare -F _init_completion >/dev/null 2>&1; then + _init_completion -n "=:" || return + else + __%[1]s_init_completion -n "=:" || return + fi + + __%[1]s_debug + __%[1]s_debug "========= starting completion logic ==========" + __%[1]s_debug "cur is ${cur}, words[*] is ${words[*]}, #words[@] is ${#words[@]}, cword is $cword" + + # The user could have moved the cursor backwards on the command-line. + # We need to trigger completion from the $cword location, so we need + # to truncate the command-line ($words) up to the $cword location. + words=("${words[@]:0:$cword+1}") + __%[1]s_debug "Truncated words[*]: ${words[*]}," + + local out directive + __%[1]s_get_completion_results + __%[1]s_process_completion_results +} + +if [[ $(type -t compopt) = "builtin" ]]; then + complete -o default -F __start_%[1]s %[1]s +else + complete -o default -o nospace -F __start_%[1]s %[1]s +fi + +# ex: ts=4 sw=4 et filetype=sh +`, name, compCmd, + ShellCompDirectiveError, ShellCompDirectiveNoSpace, ShellCompDirectiveNoFileComp, + ShellCompDirectiveFilterFileExt, ShellCompDirectiveFilterDirs)) +} + +// GenBashCompletionFileV2 generates Bash completion version 2. +func (c *Command) GenBashCompletionFileV2(filename string, includeDesc bool) error { + outFile, err := os.Create(filename) + if err != nil { + return err + } + defer outFile.Close() + + return c.GenBashCompletionV2(outFile, includeDesc) +} + +// GenBashCompletionV2 generates Bash completion file version 2 +// and writes it to the passed writer. +func (c *Command) GenBashCompletionV2(w io.Writer, includeDesc bool) error { + return c.genBashCompletion(w, includeDesc) +} diff --git a/vendor/github.com/spf13/cobra/cobra.go b/vendor/github.com/spf13/cobra/cobra.go index d01becc..d6cbfd7 100644 --- a/vendor/github.com/spf13/cobra/cobra.go +++ b/vendor/github.com/spf13/cobra/cobra.go @@ -19,6 +19,7 @@ package cobra import ( "fmt" "io" + "os" "reflect" "strconv" "strings" @@ -205,3 +206,17 @@ func stringInSlice(a string, list []string) bool { } return false } + +// CheckErr prints the msg with the prefix 'Error:' and exits with error code 1. If the msg is nil, it does nothing. +func CheckErr(msg interface{}) { + if msg != nil { + fmt.Fprintln(os.Stderr, "Error:", msg) + os.Exit(1) + } +} + +// WriteStringAndCheck writes a string into a buffer, and checks if the error is not nil. +func WriteStringAndCheck(b io.StringWriter, s string) { + _, err := b.WriteString(s) + CheckErr(err) +} diff --git a/vendor/github.com/spf13/cobra/command.go b/vendor/github.com/spf13/cobra/command.go index 88e6ed7..2cc1889 100644 --- a/vendor/github.com/spf13/cobra/command.go +++ b/vendor/github.com/spf13/cobra/command.go @@ -37,6 +37,14 @@ type FParseErrWhitelist flag.ParseErrorsWhitelist // definition to ensure usability. type Command struct { // Use is the one-line usage message. + // Recommended syntax is as follow: + // [ ] identifies an optional argument. Arguments that are not enclosed in brackets are required. + // ... indicates that you can specify multiple values for the previous argument. + // | indicates mutually exclusive information. You can use the argument to the left of the separator or the + // argument to the right of the separator. You cannot use both arguments in a single use of the command. + // { } delimits a set of mutually exclusive arguments when one of the arguments is required. If the arguments are + // optional, they are enclosed in brackets ([ ]). + // Example: add [-F file | -D dir]... [-f format] profile Use string // Aliases is an array of aliases that can be used instead of the first word in Use. @@ -55,9 +63,9 @@ type Command struct { // Example is examples of how to use the command. Example string - // ValidArgs is list of all valid non-flag arguments that are accepted in bash completions + // ValidArgs is list of all valid non-flag arguments that are accepted in shell completions ValidArgs []string - // ValidArgsFunction is an optional function that provides valid non-flag arguments for bash completion. + // ValidArgsFunction is an optional function that provides valid non-flag arguments for shell completion. // It is a dynamic version of using ValidArgs. // Only one of ValidArgs and ValidArgsFunction can be used for a command. ValidArgsFunction func(cmd *Command, args []string, toComplete string) ([]string, ShellCompDirective) @@ -66,19 +74,17 @@ type Command struct { Args PositionalArgs // ArgAliases is List of aliases for ValidArgs. - // These are not suggested to the user in the bash completion, + // These are not suggested to the user in the shell completion, // but accepted if entered manually. ArgAliases []string - // BashCompletionFunction is custom functions used by the bash autocompletion generator. + // BashCompletionFunction is custom bash functions used by the legacy bash autocompletion generator. + // For portability with other shells, it is recommended to instead use ValidArgsFunction BashCompletionFunction string // Deprecated defines, if this command is deprecated and should print this string when used. Deprecated string - // Hidden defines, if this command is hidden and should NOT show up in the list of available commands. - Hidden bool - // Annotations are key/value pairs that can be used by applications to identify or // group commands. Annotations map[string]string @@ -118,55 +124,6 @@ type Command struct { // PersistentPostRunE: PersistentPostRun but returns an error. PersistentPostRunE func(cmd *Command, args []string) error - // SilenceErrors is an option to quiet errors down stream. - SilenceErrors bool - - // SilenceUsage is an option to silence usage when an error occurs. - SilenceUsage bool - - // DisableFlagParsing disables the flag parsing. - // If this is true all flags will be passed to the command as arguments. - DisableFlagParsing bool - - // DisableAutoGenTag defines, if gen tag ("Auto generated by spf13/cobra...") - // will be printed by generating docs for this command. - DisableAutoGenTag bool - - // DisableFlagsInUseLine will disable the addition of [flags] to the usage - // line of a command when printing help or generating docs - DisableFlagsInUseLine bool - - // DisableSuggestions disables the suggestions based on Levenshtein distance - // that go along with 'unknown command' messages. - DisableSuggestions bool - // SuggestionsMinimumDistance defines minimum levenshtein distance to display suggestions. - // Must be > 0. - SuggestionsMinimumDistance int - - // TraverseChildren parses flags on all parents before executing child command. - TraverseChildren bool - - // FParseErrWhitelist flag parse errors to be ignored - FParseErrWhitelist FParseErrWhitelist - - ctx context.Context - - // commands is the list of commands supported by this program. - commands []*Command - // parent is a parent command for this command. - parent *Command - // Max lengths of commands' string lengths for use in padding. - commandsMaxUseLen int - commandsMaxCommandPathLen int - commandsMaxNameLen int - // commandsAreSorted defines, if command slice are sorted or not. - commandsAreSorted bool - // commandCalledAs is the name or alias value used to call this command. - commandCalledAs struct { - name string - called bool - } - // args is actual args parsed from flags. args []string // flagErrorBuf contains all error messages from pflag. @@ -208,6 +165,63 @@ type Command struct { outWriter io.Writer // errWriter is a writer defined by the user that replaces stderr errWriter io.Writer + + //FParseErrWhitelist flag parse errors to be ignored + FParseErrWhitelist FParseErrWhitelist + + // CompletionOptions is a set of options to control the handling of shell completion + CompletionOptions CompletionOptions + + // commandsAreSorted defines, if command slice are sorted or not. + commandsAreSorted bool + // commandCalledAs is the name or alias value used to call this command. + commandCalledAs struct { + name string + called bool + } + + ctx context.Context + + // commands is the list of commands supported by this program. + commands []*Command + // parent is a parent command for this command. + parent *Command + // Max lengths of commands' string lengths for use in padding. + commandsMaxUseLen int + commandsMaxCommandPathLen int + commandsMaxNameLen int + + // TraverseChildren parses flags on all parents before executing child command. + TraverseChildren bool + + // Hidden defines, if this command is hidden and should NOT show up in the list of available commands. + Hidden bool + + // SilenceErrors is an option to quiet errors down stream. + SilenceErrors bool + + // SilenceUsage is an option to silence usage when an error occurs. + SilenceUsage bool + + // DisableFlagParsing disables the flag parsing. + // If this is true all flags will be passed to the command as arguments. + DisableFlagParsing bool + + // DisableAutoGenTag defines, if gen tag ("Auto generated by spf13/cobra...") + // will be printed by generating docs for this command. + DisableAutoGenTag bool + + // DisableFlagsInUseLine will disable the addition of [flags] to the usage + // line of a command when printing help or generating docs + DisableFlagsInUseLine bool + + // DisableSuggestions disables the suggestions based on Levenshtein distance + // that go along with 'unknown command' messages. + DisableSuggestions bool + + // SuggestionsMinimumDistance defines minimum levenshtein distance to display suggestions. + // Must be > 0. + SuggestionsMinimumDistance int } // Context returns underlying command context. If command wasn't @@ -359,7 +373,7 @@ func (c *Command) UsageFunc() (f func(*Command) error) { c.mergePersistentFlags() err := tmpl(c.OutOrStderr(), c.UsageTemplate(), c) if err != nil { - c.Println(err) + c.PrintErrln(err) } return err } @@ -387,7 +401,7 @@ func (c *Command) HelpFunc() func(*Command, []string) { // See https://github.com/spf13/cobra/issues/1002 err := tmpl(c.OutOrStdout(), c.HelpTemplate(), c) if err != nil { - c.Println(err) + c.PrintErrln(err) } } } @@ -410,7 +424,7 @@ func (c *Command) UsageString() string { c.outWriter = bb c.errWriter = bb - c.Usage() + CheckErr(c.Usage()) // Setting things back to normal c.outWriter = tmpOutput @@ -874,7 +888,8 @@ func (c *Command) preRun() { } // ExecuteContext is the same as Execute(), but sets the ctx on the command. -// Retrieve ctx by calling cmd.Context() inside your *Run lifecycle functions. +// Retrieve ctx by calling cmd.Context() inside your *Run lifecycle or ValidArgs +// functions. func (c *Command) ExecuteContext(ctx context.Context) error { c.ctx = ctx return c.Execute() @@ -888,6 +903,14 @@ func (c *Command) Execute() error { return err } +// ExecuteContextC is the same as ExecuteC(), but sets the ctx on the command. +// Retrieve ctx by calling cmd.Context() inside your *Run lifecycle or ValidArgs +// functions. +func (c *Command) ExecuteContextC(ctx context.Context) (*Command, error) { + c.ctx = ctx + return c.ExecuteC() +} + // ExecuteC executes the command. func (c *Command) ExecuteC() (cmd *Command, err error) { if c.ctx == nil { @@ -904,9 +927,10 @@ func (c *Command) ExecuteC() (cmd *Command, err error) { preExecHookFn(c) } - // initialize help as the last point possible to allow for user - // overriding + // initialize help at the last point to allow for user overriding c.InitDefaultHelpCmd() + // initialize completion at the last point to allow for user overriding + c.initDefaultCompletionCmd() args := c.args @@ -915,7 +939,7 @@ func (c *Command) ExecuteC() (cmd *Command, err error) { args = os.Args[1:] } - // initialize the hidden command to be used for bash completion + // initialize the hidden command to be used for shell completion c.initCompleteCmd(args) var flags []string @@ -930,8 +954,8 @@ func (c *Command) ExecuteC() (cmd *Command, err error) { c = cmd } if !c.SilenceErrors { - c.Println("Error:", err.Error()) - c.Printf("Run '%v --help' for usage.\n", c.CommandPath()) + c.PrintErrln("Error:", err.Error()) + c.PrintErrf("Run '%v --help' for usage.\n", c.CommandPath()) } return c, err } @@ -956,13 +980,13 @@ func (c *Command) ExecuteC() (cmd *Command, err error) { return cmd, nil } - // If root command has SilentErrors flagged, + // If root command has SilenceErrors flagged, // all subcommands should respect it if !cmd.SilenceErrors && !c.SilenceErrors { - c.Println("Error:", err.Error()) + c.PrintErrln("Error:", err.Error()) } - // If root command has SilentUsage flagged, + // If root command has SilenceUsage flagged, // all subcommands should respect it if !cmd.SilenceUsage && !c.SilenceUsage { c.Println(cmd.UsageString()) @@ -979,6 +1003,10 @@ func (c *Command) ValidateArgs(args []string) error { } func (c *Command) validateRequiredFlags() error { + if c.DisableFlagParsing { + return nil + } + flags := c.Flags() missingFlagNames := []string{} flags.VisitAll(func(pflag *flag.Flag) { @@ -1052,15 +1080,33 @@ func (c *Command) InitDefaultHelpCmd() { Short: "Help about any command", Long: `Help provides help for any command in the application. Simply type ` + c.Name() + ` help [path to command] for full details.`, - + ValidArgsFunction: func(c *Command, args []string, toComplete string) ([]string, ShellCompDirective) { + var completions []string + cmd, _, e := c.Root().Find(args) + if e != nil { + return nil, ShellCompDirectiveNoFileComp + } + if cmd == nil { + // Root help command. + cmd = c.Root() + } + for _, subCmd := range cmd.Commands() { + if subCmd.IsAvailableCommand() || subCmd == cmd.helpCommand { + if strings.HasPrefix(subCmd.Name(), toComplete) { + completions = append(completions, fmt.Sprintf("%s\t%s", subCmd.Name(), subCmd.Short)) + } + } + } + return completions, ShellCompDirectiveNoFileComp + }, Run: func(c *Command, args []string) { cmd, _, e := c.Root().Find(args) if cmd == nil || e != nil { c.Printf("Unknown help topic %#q\n", args) - c.Root().Usage() + CheckErr(c.Root().Usage()) } else { cmd.InitDefaultHelpFlag() // make possible 'help' flag to be shown - cmd.Help() + CheckErr(cmd.Help()) } }, } @@ -1179,12 +1225,12 @@ func (c *Command) PrintErr(i ...interface{}) { // PrintErrln is a convenience method to Println to the defined Err output, fallback to Stderr if not set. func (c *Command) PrintErrln(i ...interface{}) { - c.Print(fmt.Sprintln(i...)) + c.PrintErr(fmt.Sprintln(i...)) } // PrintErrf is a convenience method to Printf to the defined Err output, fallback to Stderr if not set. func (c *Command) PrintErrf(format string, i ...interface{}) { - c.Print(fmt.Sprintf(format, i...)) + c.PrintErr(fmt.Sprintf(format, i...)) } // CommandPath returns the full path to this command. diff --git a/vendor/github.com/spf13/cobra/completions.go b/vendor/github.com/spf13/cobra/completions.go new file mode 100644 index 0000000..b849b9c --- /dev/null +++ b/vendor/github.com/spf13/cobra/completions.go @@ -0,0 +1,781 @@ +package cobra + +import ( + "fmt" + "os" + "strings" + "sync" + + "github.com/spf13/pflag" +) + +const ( + // ShellCompRequestCmd is the name of the hidden command that is used to request + // completion results from the program. It is used by the shell completion scripts. + ShellCompRequestCmd = "__complete" + // ShellCompNoDescRequestCmd is the name of the hidden command that is used to request + // completion results without their description. It is used by the shell completion scripts. + ShellCompNoDescRequestCmd = "__completeNoDesc" +) + +// Global map of flag completion functions. Make sure to use flagCompletionMutex before you try to read and write from it. +var flagCompletionFunctions = map[*pflag.Flag]func(cmd *Command, args []string, toComplete string) ([]string, ShellCompDirective){} + +// lock for reading and writing from flagCompletionFunctions +var flagCompletionMutex = &sync.RWMutex{} + +// ShellCompDirective is a bit map representing the different behaviors the shell +// can be instructed to have once completions have been provided. +type ShellCompDirective int + +type flagCompError struct { + subCommand string + flagName string +} + +func (e *flagCompError) Error() string { + return "Subcommand '" + e.subCommand + "' does not support flag '" + e.flagName + "'" +} + +const ( + // ShellCompDirectiveError indicates an error occurred and completions should be ignored. + ShellCompDirectiveError ShellCompDirective = 1 << iota + + // ShellCompDirectiveNoSpace indicates that the shell should not add a space + // after the completion even if there is a single completion provided. + ShellCompDirectiveNoSpace + + // ShellCompDirectiveNoFileComp indicates that the shell should not provide + // file completion even when no completion is provided. + ShellCompDirectiveNoFileComp + + // ShellCompDirectiveFilterFileExt indicates that the provided completions + // should be used as file extension filters. + // For flags, using Command.MarkFlagFilename() and Command.MarkPersistentFlagFilename() + // is a shortcut to using this directive explicitly. The BashCompFilenameExt + // annotation can also be used to obtain the same behavior for flags. + ShellCompDirectiveFilterFileExt + + // ShellCompDirectiveFilterDirs indicates that only directory names should + // be provided in file completion. To request directory names within another + // directory, the returned completions should specify the directory within + // which to search. The BashCompSubdirsInDir annotation can be used to + // obtain the same behavior but only for flags. + ShellCompDirectiveFilterDirs + + // =========================================================================== + + // All directives using iota should be above this one. + // For internal use. + shellCompDirectiveMaxValue + + // ShellCompDirectiveDefault indicates to let the shell perform its default + // behavior after completions have been provided. + // This one must be last to avoid messing up the iota count. + ShellCompDirectiveDefault ShellCompDirective = 0 +) + +const ( + // Constants for the completion command + compCmdName = "completion" + compCmdNoDescFlagName = "no-descriptions" + compCmdNoDescFlagDesc = "disable completion descriptions" + compCmdNoDescFlagDefault = false +) + +// CompletionOptions are the options to control shell completion +type CompletionOptions struct { + // DisableDefaultCmd prevents Cobra from creating a default 'completion' command + DisableDefaultCmd bool + // DisableNoDescFlag prevents Cobra from creating the '--no-descriptions' flag + // for shells that support completion descriptions + DisableNoDescFlag bool + // DisableDescriptions turns off all completion descriptions for shells + // that support them + DisableDescriptions bool +} + +// NoFileCompletions can be used to disable file completion for commands that should +// not trigger file completions. +func NoFileCompletions(cmd *Command, args []string, toComplete string) ([]string, ShellCompDirective) { + return nil, ShellCompDirectiveNoFileComp +} + +// RegisterFlagCompletionFunc should be called to register a function to provide completion for a flag. +func (c *Command) RegisterFlagCompletionFunc(flagName string, f func(cmd *Command, args []string, toComplete string) ([]string, ShellCompDirective)) error { + flag := c.Flag(flagName) + if flag == nil { + return fmt.Errorf("RegisterFlagCompletionFunc: flag '%s' does not exist", flagName) + } + flagCompletionMutex.Lock() + defer flagCompletionMutex.Unlock() + + if _, exists := flagCompletionFunctions[flag]; exists { + return fmt.Errorf("RegisterFlagCompletionFunc: flag '%s' already registered", flagName) + } + flagCompletionFunctions[flag] = f + return nil +} + +// Returns a string listing the different directive enabled in the specified parameter +func (d ShellCompDirective) string() string { + var directives []string + if d&ShellCompDirectiveError != 0 { + directives = append(directives, "ShellCompDirectiveError") + } + if d&ShellCompDirectiveNoSpace != 0 { + directives = append(directives, "ShellCompDirectiveNoSpace") + } + if d&ShellCompDirectiveNoFileComp != 0 { + directives = append(directives, "ShellCompDirectiveNoFileComp") + } + if d&ShellCompDirectiveFilterFileExt != 0 { + directives = append(directives, "ShellCompDirectiveFilterFileExt") + } + if d&ShellCompDirectiveFilterDirs != 0 { + directives = append(directives, "ShellCompDirectiveFilterDirs") + } + if len(directives) == 0 { + directives = append(directives, "ShellCompDirectiveDefault") + } + + if d >= shellCompDirectiveMaxValue { + return fmt.Sprintf("ERROR: unexpected ShellCompDirective value: %d", d) + } + return strings.Join(directives, ", ") +} + +// Adds a special hidden command that can be used to request custom completions. +func (c *Command) initCompleteCmd(args []string) { + completeCmd := &Command{ + Use: fmt.Sprintf("%s [command-line]", ShellCompRequestCmd), + Aliases: []string{ShellCompNoDescRequestCmd}, + DisableFlagsInUseLine: true, + Hidden: true, + DisableFlagParsing: true, + Args: MinimumNArgs(1), + Short: "Request shell completion choices for the specified command-line", + Long: fmt.Sprintf("%[2]s is a special command that is used by the shell completion logic\n%[1]s", + "to request completion choices for the specified command-line.", ShellCompRequestCmd), + Run: func(cmd *Command, args []string) { + finalCmd, completions, directive, err := cmd.getCompletions(args) + if err != nil { + CompErrorln(err.Error()) + // Keep going for multiple reasons: + // 1- There could be some valid completions even though there was an error + // 2- Even without completions, we need to print the directive + } + + noDescriptions := (cmd.CalledAs() == ShellCompNoDescRequestCmd) + for _, comp := range completions { + if noDescriptions { + // Remove any description that may be included following a tab character. + comp = strings.Split(comp, "\t")[0] + } + + // Make sure we only write the first line to the output. + // This is needed if a description contains a linebreak. + // Otherwise the shell scripts will interpret the other lines as new flags + // and could therefore provide a wrong completion. + comp = strings.Split(comp, "\n")[0] + + // Finally trim the completion. This is especially important to get rid + // of a trailing tab when there are no description following it. + // For example, a sub-command without a description should not be completed + // with a tab at the end (or else zsh will show a -- following it + // although there is no description). + comp = strings.TrimSpace(comp) + + // Print each possible completion to stdout for the completion script to consume. + fmt.Fprintln(finalCmd.OutOrStdout(), comp) + } + + // As the last printout, print the completion directive for the completion script to parse. + // The directive integer must be that last character following a single colon (:). + // The completion script expects : + fmt.Fprintf(finalCmd.OutOrStdout(), ":%d\n", directive) + + // Print some helpful info to stderr for the user to understand. + // Output from stderr must be ignored by the completion script. + fmt.Fprintf(finalCmd.ErrOrStderr(), "Completion ended with directive: %s\n", directive.string()) + }, + } + c.AddCommand(completeCmd) + subCmd, _, err := c.Find(args) + if err != nil || subCmd.Name() != ShellCompRequestCmd { + // Only create this special command if it is actually being called. + // This reduces possible side-effects of creating such a command; + // for example, having this command would cause problems to a + // cobra program that only consists of the root command, since this + // command would cause the root command to suddenly have a subcommand. + c.RemoveCommand(completeCmd) + } +} + +func (c *Command) getCompletions(args []string) (*Command, []string, ShellCompDirective, error) { + // The last argument, which is not completely typed by the user, + // should not be part of the list of arguments + toComplete := args[len(args)-1] + trimmedArgs := args[:len(args)-1] + + var finalCmd *Command + var finalArgs []string + var err error + // Find the real command for which completion must be performed + // check if we need to traverse here to parse local flags on parent commands + if c.Root().TraverseChildren { + finalCmd, finalArgs, err = c.Root().Traverse(trimmedArgs) + } else { + finalCmd, finalArgs, err = c.Root().Find(trimmedArgs) + } + if err != nil { + // Unable to find the real command. E.g., someInvalidCmd + return c, []string{}, ShellCompDirectiveDefault, fmt.Errorf("Unable to find a command for arguments: %v", trimmedArgs) + } + finalCmd.ctx = c.ctx + + // Check if we are doing flag value completion before parsing the flags. + // This is important because if we are completing a flag value, we need to also + // remove the flag name argument from the list of finalArgs or else the parsing + // could fail due to an invalid value (incomplete) for the flag. + flag, finalArgs, toComplete, flagErr := checkIfFlagCompletion(finalCmd, finalArgs, toComplete) + + // Check if interspersed is false or -- was set on a previous arg. + // This works by counting the arguments. Normally -- is not counted as arg but + // if -- was already set or interspersed is false and there is already one arg then + // the extra added -- is counted as arg. + flagCompletion := true + _ = finalCmd.ParseFlags(append(finalArgs, "--")) + newArgCount := finalCmd.Flags().NArg() + + // Parse the flags early so we can check if required flags are set + if err = finalCmd.ParseFlags(finalArgs); err != nil { + return finalCmd, []string{}, ShellCompDirectiveDefault, fmt.Errorf("Error while parsing flags from args %v: %s", finalArgs, err.Error()) + } + + realArgCount := finalCmd.Flags().NArg() + if newArgCount > realArgCount { + // don't do flag completion (see above) + flagCompletion = false + } + // Error while attempting to parse flags + if flagErr != nil { + // If error type is flagCompError and we don't want flagCompletion we should ignore the error + if _, ok := flagErr.(*flagCompError); !(ok && !flagCompletion) { + return finalCmd, []string{}, ShellCompDirectiveDefault, flagErr + } + } + + if flag != nil && flagCompletion { + // Check if we are completing a flag value subject to annotations + if validExts, present := flag.Annotations[BashCompFilenameExt]; present { + if len(validExts) != 0 { + // File completion filtered by extensions + return finalCmd, validExts, ShellCompDirectiveFilterFileExt, nil + } + + // The annotation requests simple file completion. There is no reason to do + // that since it is the default behavior anyway. Let's ignore this annotation + // in case the program also registered a completion function for this flag. + // Even though it is a mistake on the program's side, let's be nice when we can. + } + + if subDir, present := flag.Annotations[BashCompSubdirsInDir]; present { + if len(subDir) == 1 { + // Directory completion from within a directory + return finalCmd, subDir, ShellCompDirectiveFilterDirs, nil + } + // Directory completion + return finalCmd, []string{}, ShellCompDirectiveFilterDirs, nil + } + } + + // When doing completion of a flag name, as soon as an argument starts with + // a '-' we know it is a flag. We cannot use isFlagArg() here as it requires + // the flag name to be complete + if flag == nil && len(toComplete) > 0 && toComplete[0] == '-' && !strings.Contains(toComplete, "=") && flagCompletion { + var completions []string + + // First check for required flags + completions = completeRequireFlags(finalCmd, toComplete) + + // If we have not found any required flags, only then can we show regular flags + if len(completions) == 0 { + doCompleteFlags := func(flag *pflag.Flag) { + if !flag.Changed || + strings.Contains(flag.Value.Type(), "Slice") || + strings.Contains(flag.Value.Type(), "Array") { + // If the flag is not already present, or if it can be specified multiple times (Array or Slice) + // we suggest it as a completion + completions = append(completions, getFlagNameCompletions(flag, toComplete)...) + } + } + + // We cannot use finalCmd.Flags() because we may not have called ParsedFlags() for commands + // that have set DisableFlagParsing; it is ParseFlags() that merges the inherited and + // non-inherited flags. + finalCmd.InheritedFlags().VisitAll(func(flag *pflag.Flag) { + doCompleteFlags(flag) + }) + finalCmd.NonInheritedFlags().VisitAll(func(flag *pflag.Flag) { + doCompleteFlags(flag) + }) + } + + directive := ShellCompDirectiveNoFileComp + if len(completions) == 1 && strings.HasSuffix(completions[0], "=") { + // If there is a single completion, the shell usually adds a space + // after the completion. We don't want that if the flag ends with an = + directive = ShellCompDirectiveNoSpace + } + return finalCmd, completions, directive, nil + } + + // We only remove the flags from the arguments if DisableFlagParsing is not set. + // This is important for commands which have requested to do their own flag completion. + if !finalCmd.DisableFlagParsing { + finalArgs = finalCmd.Flags().Args() + } + + var completions []string + directive := ShellCompDirectiveDefault + if flag == nil { + foundLocalNonPersistentFlag := false + // If TraverseChildren is true on the root command we don't check for + // local flags because we can use a local flag on a parent command + if !finalCmd.Root().TraverseChildren { + // Check if there are any local, non-persistent flags on the command-line + localNonPersistentFlags := finalCmd.LocalNonPersistentFlags() + finalCmd.NonInheritedFlags().VisitAll(func(flag *pflag.Flag) { + if localNonPersistentFlags.Lookup(flag.Name) != nil && flag.Changed { + foundLocalNonPersistentFlag = true + } + }) + } + + // Complete subcommand names, including the help command + if len(finalArgs) == 0 && !foundLocalNonPersistentFlag { + // We only complete sub-commands if: + // - there are no arguments on the command-line and + // - there are no local, non-persistent flags on the command-line or TraverseChildren is true + for _, subCmd := range finalCmd.Commands() { + if subCmd.IsAvailableCommand() || subCmd == finalCmd.helpCommand { + if strings.HasPrefix(subCmd.Name(), toComplete) { + completions = append(completions, fmt.Sprintf("%s\t%s", subCmd.Name(), subCmd.Short)) + } + directive = ShellCompDirectiveNoFileComp + } + } + } + + // Complete required flags even without the '-' prefix + completions = append(completions, completeRequireFlags(finalCmd, toComplete)...) + + // Always complete ValidArgs, even if we are completing a subcommand name. + // This is for commands that have both subcommands and ValidArgs. + if len(finalCmd.ValidArgs) > 0 { + if len(finalArgs) == 0 { + // ValidArgs are only for the first argument + for _, validArg := range finalCmd.ValidArgs { + if strings.HasPrefix(validArg, toComplete) { + completions = append(completions, validArg) + } + } + directive = ShellCompDirectiveNoFileComp + + // If no completions were found within commands or ValidArgs, + // see if there are any ArgAliases that should be completed. + if len(completions) == 0 { + for _, argAlias := range finalCmd.ArgAliases { + if strings.HasPrefix(argAlias, toComplete) { + completions = append(completions, argAlias) + } + } + } + } + + // If there are ValidArgs specified (even if they don't match), we stop completion. + // Only one of ValidArgs or ValidArgsFunction can be used for a single command. + return finalCmd, completions, directive, nil + } + + // Let the logic continue so as to add any ValidArgsFunction completions, + // even if we already found sub-commands. + // This is for commands that have subcommands but also specify a ValidArgsFunction. + } + + // Find the completion function for the flag or command + var completionFn func(cmd *Command, args []string, toComplete string) ([]string, ShellCompDirective) + if flag != nil && flagCompletion { + flagCompletionMutex.RLock() + completionFn = flagCompletionFunctions[flag] + flagCompletionMutex.RUnlock() + } else { + completionFn = finalCmd.ValidArgsFunction + } + if completionFn != nil { + // Go custom completion defined for this flag or command. + // Call the registered completion function to get the completions. + var comps []string + comps, directive = completionFn(finalCmd, finalArgs, toComplete) + completions = append(completions, comps...) + } + + return finalCmd, completions, directive, nil +} + +func getFlagNameCompletions(flag *pflag.Flag, toComplete string) []string { + if nonCompletableFlag(flag) { + return []string{} + } + + var completions []string + flagName := "--" + flag.Name + if strings.HasPrefix(flagName, toComplete) { + // Flag without the = + completions = append(completions, fmt.Sprintf("%s\t%s", flagName, flag.Usage)) + + // Why suggest both long forms: --flag and --flag= ? + // This forces the user to *always* have to type either an = or a space after the flag name. + // Let's be nice and avoid making users have to do that. + // Since boolean flags and shortname flags don't show the = form, let's go that route and never show it. + // The = form will still work, we just won't suggest it. + // This also makes the list of suggested flags shorter as we avoid all the = forms. + // + // if len(flag.NoOptDefVal) == 0 { + // // Flag requires a value, so it can be suffixed with = + // flagName += "=" + // completions = append(completions, fmt.Sprintf("%s\t%s", flagName, flag.Usage)) + // } + } + + flagName = "-" + flag.Shorthand + if len(flag.Shorthand) > 0 && strings.HasPrefix(flagName, toComplete) { + completions = append(completions, fmt.Sprintf("%s\t%s", flagName, flag.Usage)) + } + + return completions +} + +func completeRequireFlags(finalCmd *Command, toComplete string) []string { + var completions []string + + doCompleteRequiredFlags := func(flag *pflag.Flag) { + if _, present := flag.Annotations[BashCompOneRequiredFlag]; present { + if !flag.Changed { + // If the flag is not already present, we suggest it as a completion + completions = append(completions, getFlagNameCompletions(flag, toComplete)...) + } + } + } + + // We cannot use finalCmd.Flags() because we may not have called ParsedFlags() for commands + // that have set DisableFlagParsing; it is ParseFlags() that merges the inherited and + // non-inherited flags. + finalCmd.InheritedFlags().VisitAll(func(flag *pflag.Flag) { + doCompleteRequiredFlags(flag) + }) + finalCmd.NonInheritedFlags().VisitAll(func(flag *pflag.Flag) { + doCompleteRequiredFlags(flag) + }) + + return completions +} + +func checkIfFlagCompletion(finalCmd *Command, args []string, lastArg string) (*pflag.Flag, []string, string, error) { + if finalCmd.DisableFlagParsing { + // We only do flag completion if we are allowed to parse flags + // This is important for commands which have requested to do their own flag completion. + return nil, args, lastArg, nil + } + + var flagName string + trimmedArgs := args + flagWithEqual := false + orgLastArg := lastArg + + // When doing completion of a flag name, as soon as an argument starts with + // a '-' we know it is a flag. We cannot use isFlagArg() here as that function + // requires the flag name to be complete + if len(lastArg) > 0 && lastArg[0] == '-' { + if index := strings.Index(lastArg, "="); index >= 0 { + // Flag with an = + if strings.HasPrefix(lastArg[:index], "--") { + // Flag has full name + flagName = lastArg[2:index] + } else { + // Flag is shorthand + // We have to get the last shorthand flag name + // e.g. `-asd` => d to provide the correct completion + // https://github.com/spf13/cobra/issues/1257 + flagName = lastArg[index-1 : index] + } + lastArg = lastArg[index+1:] + flagWithEqual = true + } else { + // Normal flag completion + return nil, args, lastArg, nil + } + } + + if len(flagName) == 0 { + if len(args) > 0 { + prevArg := args[len(args)-1] + if isFlagArg(prevArg) { + // Only consider the case where the flag does not contain an =. + // If the flag contains an = it means it has already been fully processed, + // so we don't need to deal with it here. + if index := strings.Index(prevArg, "="); index < 0 { + if strings.HasPrefix(prevArg, "--") { + // Flag has full name + flagName = prevArg[2:] + } else { + // Flag is shorthand + // We have to get the last shorthand flag name + // e.g. `-asd` => d to provide the correct completion + // https://github.com/spf13/cobra/issues/1257 + flagName = prevArg[len(prevArg)-1:] + } + // Remove the uncompleted flag or else there could be an error created + // for an invalid value for that flag + trimmedArgs = args[:len(args)-1] + } + } + } + } + + if len(flagName) == 0 { + // Not doing flag completion + return nil, trimmedArgs, lastArg, nil + } + + flag := findFlag(finalCmd, flagName) + if flag == nil { + // Flag not supported by this command, the interspersed option might be set so return the original args + return nil, args, orgLastArg, &flagCompError{subCommand: finalCmd.Name(), flagName: flagName} + } + + if !flagWithEqual { + if len(flag.NoOptDefVal) != 0 { + // We had assumed dealing with a two-word flag but the flag is a boolean flag. + // In that case, there is no value following it, so we are not really doing flag completion. + // Reset everything to do noun completion. + trimmedArgs = args + flag = nil + } + } + + return flag, trimmedArgs, lastArg, nil +} + +// initDefaultCompletionCmd adds a default 'completion' command to c. +// This function will do nothing if any of the following is true: +// 1- the feature has been explicitly disabled by the program, +// 2- c has no subcommands (to avoid creating one), +// 3- c already has a 'completion' command provided by the program. +func (c *Command) initDefaultCompletionCmd() { + if c.CompletionOptions.DisableDefaultCmd || !c.HasSubCommands() { + return + } + + for _, cmd := range c.commands { + if cmd.Name() == compCmdName || cmd.HasAlias(compCmdName) { + // A completion command is already available + return + } + } + + haveNoDescFlag := !c.CompletionOptions.DisableNoDescFlag && !c.CompletionOptions.DisableDescriptions + + completionCmd := &Command{ + Use: compCmdName, + Short: "generate the autocompletion script for the specified shell", + Long: fmt.Sprintf(` +Generate the autocompletion script for %[1]s for the specified shell. +See each sub-command's help for details on how to use the generated script. +`, c.Root().Name()), + Args: NoArgs, + ValidArgsFunction: NoFileCompletions, + } + c.AddCommand(completionCmd) + + out := c.OutOrStdout() + noDesc := c.CompletionOptions.DisableDescriptions + shortDesc := "generate the autocompletion script for %s" + bash := &Command{ + Use: "bash", + Short: fmt.Sprintf(shortDesc, "bash"), + Long: fmt.Sprintf(` +Generate the autocompletion script for the bash shell. + +This script depends on the 'bash-completion' package. +If it is not installed already, you can install it via your OS's package manager. + +To load completions in your current shell session: +$ source <(%[1]s completion bash) + +To load completions for every new session, execute once: +Linux: + $ %[1]s completion bash > /etc/bash_completion.d/%[1]s +MacOS: + $ %[1]s completion bash > /usr/local/etc/bash_completion.d/%[1]s + +You will need to start a new shell for this setup to take effect. + `, c.Root().Name()), + Args: NoArgs, + DisableFlagsInUseLine: true, + ValidArgsFunction: NoFileCompletions, + RunE: func(cmd *Command, args []string) error { + return cmd.Root().GenBashCompletionV2(out, !noDesc) + }, + } + if haveNoDescFlag { + bash.Flags().BoolVar(&noDesc, compCmdNoDescFlagName, compCmdNoDescFlagDefault, compCmdNoDescFlagDesc) + } + + zsh := &Command{ + Use: "zsh", + Short: fmt.Sprintf(shortDesc, "zsh"), + Long: fmt.Sprintf(` +Generate the autocompletion script for the zsh shell. + +If shell completion is not already enabled in your environment you will need +to enable it. You can execute the following once: + +$ echo "autoload -U compinit; compinit" >> ~/.zshrc + +To load completions for every new session, execute once: +# Linux: +$ %[1]s completion zsh > "${fpath[1]}/_%[1]s" +# macOS: +$ %[1]s completion zsh > /usr/local/share/zsh/site-functions/_%[1]s + +You will need to start a new shell for this setup to take effect. +`, c.Root().Name()), + Args: NoArgs, + ValidArgsFunction: NoFileCompletions, + RunE: func(cmd *Command, args []string) error { + if noDesc { + return cmd.Root().GenZshCompletionNoDesc(out) + } + return cmd.Root().GenZshCompletion(out) + }, + } + if haveNoDescFlag { + zsh.Flags().BoolVar(&noDesc, compCmdNoDescFlagName, compCmdNoDescFlagDefault, compCmdNoDescFlagDesc) + } + + fish := &Command{ + Use: "fish", + Short: fmt.Sprintf(shortDesc, "fish"), + Long: fmt.Sprintf(` +Generate the autocompletion script for the fish shell. + +To load completions in your current shell session: +$ %[1]s completion fish | source + +To load completions for every new session, execute once: +$ %[1]s completion fish > ~/.config/fish/completions/%[1]s.fish + +You will need to start a new shell for this setup to take effect. +`, c.Root().Name()), + Args: NoArgs, + ValidArgsFunction: NoFileCompletions, + RunE: func(cmd *Command, args []string) error { + return cmd.Root().GenFishCompletion(out, !noDesc) + }, + } + if haveNoDescFlag { + fish.Flags().BoolVar(&noDesc, compCmdNoDescFlagName, compCmdNoDescFlagDefault, compCmdNoDescFlagDesc) + } + + powershell := &Command{ + Use: "powershell", + Short: fmt.Sprintf(shortDesc, "powershell"), + Long: fmt.Sprintf(` +Generate the autocompletion script for powershell. + +To load completions in your current shell session: +PS C:\> %[1]s completion powershell | Out-String | Invoke-Expression + +To load completions for every new session, add the output of the above command +to your powershell profile. +`, c.Root().Name()), + Args: NoArgs, + ValidArgsFunction: NoFileCompletions, + RunE: func(cmd *Command, args []string) error { + if noDesc { + return cmd.Root().GenPowerShellCompletion(out) + } + return cmd.Root().GenPowerShellCompletionWithDesc(out) + + }, + } + if haveNoDescFlag { + powershell.Flags().BoolVar(&noDesc, compCmdNoDescFlagName, compCmdNoDescFlagDefault, compCmdNoDescFlagDesc) + } + + completionCmd.AddCommand(bash, zsh, fish, powershell) +} + +func findFlag(cmd *Command, name string) *pflag.Flag { + flagSet := cmd.Flags() + if len(name) == 1 { + // First convert the short flag into a long flag + // as the cmd.Flag() search only accepts long flags + if short := flagSet.ShorthandLookup(name); short != nil { + name = short.Name + } else { + set := cmd.InheritedFlags() + if short = set.ShorthandLookup(name); short != nil { + name = short.Name + } else { + return nil + } + } + } + return cmd.Flag(name) +} + +// CompDebug prints the specified string to the same file as where the +// completion script prints its logs. +// Note that completion printouts should never be on stdout as they would +// be wrongly interpreted as actual completion choices by the completion script. +func CompDebug(msg string, printToStdErr bool) { + msg = fmt.Sprintf("[Debug] %s", msg) + + // Such logs are only printed when the user has set the environment + // variable BASH_COMP_DEBUG_FILE to the path of some file to be used. + if path := os.Getenv("BASH_COMP_DEBUG_FILE"); path != "" { + f, err := os.OpenFile(path, + os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644) + if err == nil { + defer f.Close() + WriteStringAndCheck(f, msg) + } + } + + if printToStdErr { + // Must print to stderr for this not to be read by the completion script. + fmt.Fprint(os.Stderr, msg) + } +} + +// CompDebugln prints the specified string with a newline at the end +// to the same file as where the completion script prints its logs. +// Such logs are only printed when the user has set the environment +// variable BASH_COMP_DEBUG_FILE to the path of some file to be used. +func CompDebugln(msg string, printToStdErr bool) { + CompDebug(fmt.Sprintf("%s\n", msg), printToStdErr) +} + +// CompError prints the specified completion message to stderr. +func CompError(msg string) { + msg = fmt.Sprintf("[Error] %s", msg) + CompDebug(msg, true) +} + +// CompErrorln prints the specified completion message to stderr with a newline at the end. +func CompErrorln(msg string) { + CompError(fmt.Sprintf("%s\n", msg)) +} diff --git a/vendor/github.com/spf13/cobra/custom_completions.go b/vendor/github.com/spf13/cobra/custom_completions.go deleted file mode 100644 index ba57327..0000000 --- a/vendor/github.com/spf13/cobra/custom_completions.go +++ /dev/null @@ -1,384 +0,0 @@ -package cobra - -import ( - "errors" - "fmt" - "os" - "strings" - - "github.com/spf13/pflag" -) - -const ( - // ShellCompRequestCmd is the name of the hidden command that is used to request - // completion results from the program. It is used by the shell completion scripts. - ShellCompRequestCmd = "__complete" - // ShellCompNoDescRequestCmd is the name of the hidden command that is used to request - // completion results without their description. It is used by the shell completion scripts. - ShellCompNoDescRequestCmd = "__completeNoDesc" -) - -// Global map of flag completion functions. -var flagCompletionFunctions = map[*pflag.Flag]func(cmd *Command, args []string, toComplete string) ([]string, ShellCompDirective){} - -// ShellCompDirective is a bit map representing the different behaviors the shell -// can be instructed to have once completions have been provided. -type ShellCompDirective int - -const ( - // ShellCompDirectiveError indicates an error occurred and completions should be ignored. - ShellCompDirectiveError ShellCompDirective = 1 << iota - - // ShellCompDirectiveNoSpace indicates that the shell should not add a space - // after the completion even if there is a single completion provided. - ShellCompDirectiveNoSpace - - // ShellCompDirectiveNoFileComp indicates that the shell should not provide - // file completion even when no completion is provided. - // This currently does not work for zsh or bash < 4 - ShellCompDirectiveNoFileComp - - // ShellCompDirectiveDefault indicates to let the shell perform its default - // behavior after completions have been provided. - ShellCompDirectiveDefault ShellCompDirective = 0 -) - -// RegisterFlagCompletionFunc should be called to register a function to provide completion for a flag. -func (c *Command) RegisterFlagCompletionFunc(flagName string, f func(cmd *Command, args []string, toComplete string) ([]string, ShellCompDirective)) error { - flag := c.Flag(flagName) - if flag == nil { - return fmt.Errorf("RegisterFlagCompletionFunc: flag '%s' does not exist", flagName) - } - if _, exists := flagCompletionFunctions[flag]; exists { - return fmt.Errorf("RegisterFlagCompletionFunc: flag '%s' already registered", flagName) - } - flagCompletionFunctions[flag] = f - return nil -} - -// Returns a string listing the different directive enabled in the specified parameter -func (d ShellCompDirective) string() string { - var directives []string - if d&ShellCompDirectiveError != 0 { - directives = append(directives, "ShellCompDirectiveError") - } - if d&ShellCompDirectiveNoSpace != 0 { - directives = append(directives, "ShellCompDirectiveNoSpace") - } - if d&ShellCompDirectiveNoFileComp != 0 { - directives = append(directives, "ShellCompDirectiveNoFileComp") - } - if len(directives) == 0 { - directives = append(directives, "ShellCompDirectiveDefault") - } - - if d > ShellCompDirectiveError+ShellCompDirectiveNoSpace+ShellCompDirectiveNoFileComp { - return fmt.Sprintf("ERROR: unexpected ShellCompDirective value: %d", d) - } - return strings.Join(directives, ", ") -} - -// Adds a special hidden command that can be used to request custom completions. -func (c *Command) initCompleteCmd(args []string) { - completeCmd := &Command{ - Use: fmt.Sprintf("%s [command-line]", ShellCompRequestCmd), - Aliases: []string{ShellCompNoDescRequestCmd}, - DisableFlagsInUseLine: true, - Hidden: true, - DisableFlagParsing: true, - Args: MinimumNArgs(1), - Short: "Request shell completion choices for the specified command-line", - Long: fmt.Sprintf("%[2]s is a special command that is used by the shell completion logic\n%[1]s", - "to request completion choices for the specified command-line.", ShellCompRequestCmd), - Run: func(cmd *Command, args []string) { - finalCmd, completions, directive, err := cmd.getCompletions(args) - if err != nil { - CompErrorln(err.Error()) - // Keep going for multiple reasons: - // 1- There could be some valid completions even though there was an error - // 2- Even without completions, we need to print the directive - } - - noDescriptions := (cmd.CalledAs() == ShellCompNoDescRequestCmd) - for _, comp := range completions { - if noDescriptions { - // Remove any description that may be included following a tab character. - comp = strings.Split(comp, "\t")[0] - } - // Print each possible completion to stdout for the completion script to consume. - fmt.Fprintln(finalCmd.OutOrStdout(), comp) - } - - if directive > ShellCompDirectiveError+ShellCompDirectiveNoSpace+ShellCompDirectiveNoFileComp { - directive = ShellCompDirectiveDefault - } - - // As the last printout, print the completion directive for the completion script to parse. - // The directive integer must be that last character following a single colon (:). - // The completion script expects : - fmt.Fprintf(finalCmd.OutOrStdout(), ":%d\n", directive) - - // Print some helpful info to stderr for the user to understand. - // Output from stderr must be ignored by the completion script. - fmt.Fprintf(finalCmd.ErrOrStderr(), "Completion ended with directive: %s\n", directive.string()) - }, - } - c.AddCommand(completeCmd) - subCmd, _, err := c.Find(args) - if err != nil || subCmd.Name() != ShellCompRequestCmd { - // Only create this special command if it is actually being called. - // This reduces possible side-effects of creating such a command; - // for example, having this command would cause problems to a - // cobra program that only consists of the root command, since this - // command would cause the root command to suddenly have a subcommand. - c.RemoveCommand(completeCmd) - } -} - -func (c *Command) getCompletions(args []string) (*Command, []string, ShellCompDirective, error) { - var completions []string - - // The last argument, which is not completely typed by the user, - // should not be part of the list of arguments - toComplete := args[len(args)-1] - trimmedArgs := args[:len(args)-1] - - // Find the real command for which completion must be performed - finalCmd, finalArgs, err := c.Root().Find(trimmedArgs) - if err != nil { - // Unable to find the real command. E.g., someInvalidCmd - return c, completions, ShellCompDirectiveDefault, fmt.Errorf("Unable to find a command for arguments: %v", trimmedArgs) - } - - // When doing completion of a flag name, as soon as an argument starts with - // a '-' we know it is a flag. We cannot use isFlagArg() here as it requires - // the flag to be complete - if len(toComplete) > 0 && toComplete[0] == '-' && !strings.Contains(toComplete, "=") { - // We are completing a flag name - finalCmd.NonInheritedFlags().VisitAll(func(flag *pflag.Flag) { - completions = append(completions, getFlagNameCompletions(flag, toComplete)...) - }) - finalCmd.InheritedFlags().VisitAll(func(flag *pflag.Flag) { - completions = append(completions, getFlagNameCompletions(flag, toComplete)...) - }) - - directive := ShellCompDirectiveDefault - if len(completions) > 0 { - if strings.HasSuffix(completions[0], "=") { - directive = ShellCompDirectiveNoSpace - } - } - return finalCmd, completions, directive, nil - } - - var flag *pflag.Flag - if !finalCmd.DisableFlagParsing { - // We only do flag completion if we are allowed to parse flags - // This is important for commands which have requested to do their own flag completion. - flag, finalArgs, toComplete, err = checkIfFlagCompletion(finalCmd, finalArgs, toComplete) - if err != nil { - // Error while attempting to parse flags - return finalCmd, completions, ShellCompDirectiveDefault, err - } - } - - if flag == nil { - // Complete subcommand names - for _, subCmd := range finalCmd.Commands() { - if subCmd.IsAvailableCommand() && strings.HasPrefix(subCmd.Name(), toComplete) { - completions = append(completions, fmt.Sprintf("%s\t%s", subCmd.Name(), subCmd.Short)) - } - } - - if len(finalCmd.ValidArgs) > 0 { - // Always complete ValidArgs, even if we are completing a subcommand name. - // This is for commands that have both subcommands and ValidArgs. - for _, validArg := range finalCmd.ValidArgs { - if strings.HasPrefix(validArg, toComplete) { - completions = append(completions, validArg) - } - } - - // If there are ValidArgs specified (even if they don't match), we stop completion. - // Only one of ValidArgs or ValidArgsFunction can be used for a single command. - return finalCmd, completions, ShellCompDirectiveNoFileComp, nil - } - - // Always let the logic continue so as to add any ValidArgsFunction completions, - // even if we already found sub-commands. - // This is for commands that have subcommands but also specify a ValidArgsFunction. - } - - // Parse the flags and extract the arguments to prepare for calling the completion function - if err = finalCmd.ParseFlags(finalArgs); err != nil { - return finalCmd, completions, ShellCompDirectiveDefault, fmt.Errorf("Error while parsing flags from args %v: %s", finalArgs, err.Error()) - } - - // We only remove the flags from the arguments if DisableFlagParsing is not set. - // This is important for commands which have requested to do their own flag completion. - if !finalCmd.DisableFlagParsing { - finalArgs = finalCmd.Flags().Args() - } - - // Find the completion function for the flag or command - var completionFn func(cmd *Command, args []string, toComplete string) ([]string, ShellCompDirective) - if flag != nil { - completionFn = flagCompletionFunctions[flag] - } else { - completionFn = finalCmd.ValidArgsFunction - } - if completionFn == nil { - // Go custom completion not supported/needed for this flag or command - return finalCmd, completions, ShellCompDirectiveDefault, nil - } - - // Call the registered completion function to get the completions - comps, directive := completionFn(finalCmd, finalArgs, toComplete) - completions = append(completions, comps...) - return finalCmd, completions, directive, nil -} - -func getFlagNameCompletions(flag *pflag.Flag, toComplete string) []string { - if nonCompletableFlag(flag) { - return []string{} - } - - var completions []string - flagName := "--" + flag.Name - if strings.HasPrefix(flagName, toComplete) { - // Flag without the = - completions = append(completions, fmt.Sprintf("%s\t%s", flagName, flag.Usage)) - - if len(flag.NoOptDefVal) == 0 { - // Flag requires a value, so it can be suffixed with = - flagName += "=" - completions = append(completions, fmt.Sprintf("%s\t%s", flagName, flag.Usage)) - } - } - - flagName = "-" + flag.Shorthand - if len(flag.Shorthand) > 0 && strings.HasPrefix(flagName, toComplete) { - completions = append(completions, fmt.Sprintf("%s\t%s", flagName, flag.Usage)) - } - - return completions -} - -func checkIfFlagCompletion(finalCmd *Command, args []string, lastArg string) (*pflag.Flag, []string, string, error) { - var flagName string - trimmedArgs := args - flagWithEqual := false - if isFlagArg(lastArg) { - if index := strings.Index(lastArg, "="); index >= 0 { - flagName = strings.TrimLeft(lastArg[:index], "-") - lastArg = lastArg[index+1:] - flagWithEqual = true - } else { - return nil, nil, "", errors.New("Unexpected completion request for flag") - } - } - - if len(flagName) == 0 { - if len(args) > 0 { - prevArg := args[len(args)-1] - if isFlagArg(prevArg) { - // Only consider the case where the flag does not contain an =. - // If the flag contains an = it means it has already been fully processed, - // so we don't need to deal with it here. - if index := strings.Index(prevArg, "="); index < 0 { - flagName = strings.TrimLeft(prevArg, "-") - - // Remove the uncompleted flag or else there could be an error created - // for an invalid value for that flag - trimmedArgs = args[:len(args)-1] - } - } - } - } - - if len(flagName) == 0 { - // Not doing flag completion - return nil, trimmedArgs, lastArg, nil - } - - flag := findFlag(finalCmd, flagName) - if flag == nil { - // Flag not supported by this command, nothing to complete - err := fmt.Errorf("Subcommand '%s' does not support flag '%s'", finalCmd.Name(), flagName) - return nil, nil, "", err - } - - if !flagWithEqual { - if len(flag.NoOptDefVal) != 0 { - // We had assumed dealing with a two-word flag but the flag is a boolean flag. - // In that case, there is no value following it, so we are not really doing flag completion. - // Reset everything to do noun completion. - trimmedArgs = args - flag = nil - } - } - - return flag, trimmedArgs, lastArg, nil -} - -func findFlag(cmd *Command, name string) *pflag.Flag { - flagSet := cmd.Flags() - if len(name) == 1 { - // First convert the short flag into a long flag - // as the cmd.Flag() search only accepts long flags - if short := flagSet.ShorthandLookup(name); short != nil { - name = short.Name - } else { - set := cmd.InheritedFlags() - if short = set.ShorthandLookup(name); short != nil { - name = short.Name - } else { - return nil - } - } - } - return cmd.Flag(name) -} - -// CompDebug prints the specified string to the same file as where the -// completion script prints its logs. -// Note that completion printouts should never be on stdout as they would -// be wrongly interpreted as actual completion choices by the completion script. -func CompDebug(msg string, printToStdErr bool) { - msg = fmt.Sprintf("[Debug] %s", msg) - - // Such logs are only printed when the user has set the environment - // variable BASH_COMP_DEBUG_FILE to the path of some file to be used. - if path := os.Getenv("BASH_COMP_DEBUG_FILE"); path != "" { - f, err := os.OpenFile(path, - os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644) - if err == nil { - defer f.Close() - f.WriteString(msg) - } - } - - if printToStdErr { - // Must print to stderr for this not to be read by the completion script. - fmt.Fprintf(os.Stderr, msg) - } -} - -// CompDebugln prints the specified string with a newline at the end -// to the same file as where the completion script prints its logs. -// Such logs are only printed when the user has set the environment -// variable BASH_COMP_DEBUG_FILE to the path of some file to be used. -func CompDebugln(msg string, printToStdErr bool) { - CompDebug(fmt.Sprintf("%s\n", msg), printToStdErr) -} - -// CompError prints the specified completion message to stderr. -func CompError(msg string) { - msg = fmt.Sprintf("[Error] %s", msg) - CompDebug(msg, true) -} - -// CompErrorln prints the specified completion message to stderr with a newline at the end. -func CompErrorln(msg string) { - CompError(fmt.Sprintf("%s\n", msg)) -} diff --git a/vendor/github.com/spf13/cobra/fish_completions.go b/vendor/github.com/spf13/cobra/fish_completions.go index c83609c..bb57fd5 100644 --- a/vendor/github.com/spf13/cobra/fish_completions.go +++ b/vendor/github.com/spf13/cobra/fish_completions.go @@ -5,48 +5,63 @@ import ( "fmt" "io" "os" + "strings" ) -func genFishComp(buf *bytes.Buffer, name string, includeDesc bool) { +func genFishComp(buf io.StringWriter, name string, includeDesc bool) { + // Variables should not contain a '-' or ':' character + nameForVar := name + nameForVar = strings.Replace(nameForVar, "-", "_", -1) + nameForVar = strings.Replace(nameForVar, ":", "_", -1) + compCmd := ShellCompRequestCmd if !includeDesc { compCmd = ShellCompNoDescRequestCmd } - buf.WriteString(fmt.Sprintf("# fish completion for %-36s -*- shell-script -*-\n", name)) - buf.WriteString(fmt.Sprintf(` + WriteStringAndCheck(buf, fmt.Sprintf("# fish completion for %-36s -*- shell-script -*-\n", name)) + WriteStringAndCheck(buf, fmt.Sprintf(` function __%[1]s_debug - set file "$BASH_COMP_DEBUG_FILE" + set -l file "$BASH_COMP_DEBUG_FILE" if test -n "$file" echo "$argv" >> $file end end function __%[1]s_perform_completion - __%[1]s_debug "Starting __%[1]s_perform_completion with: $argv" + __%[1]s_debug "Starting __%[1]s_perform_completion" - set args (string split -- " " "$argv") - set lastArg "$args[-1]" + # Extract all args except the last one + set -l args (commandline -opc) + # Extract the last arg and escape it in case it is a space + set -l lastArg (string escape -- (commandline -ct)) __%[1]s_debug "args: $args" __%[1]s_debug "last arg: $lastArg" - set emptyArg "" - if test -z "$lastArg" - __%[1]s_debug "Setting emptyArg" - set emptyArg \"\" - end - __%[1]s_debug "emptyArg: $emptyArg" + set -l requestComp "$args[1] %[3]s $args[2..-1] $lastArg" - set requestComp "$args[1] %[2]s $args[2..-1] $emptyArg" __%[1]s_debug "Calling $requestComp" + set -l results (eval $requestComp 2> /dev/null) + + # Some programs may output extra empty lines after the directive. + # Let's ignore them or else it will break completion. + # Ref: https://github.com/spf13/cobra/issues/1279 + for line in $results[-1..1] + if test (string trim -- $line) = "" + # Found an empty line, remove it + set results $results[1..-2] + else + # Found non-empty line, we have our proper output + break + end + end - set results (eval $requestComp 2> /dev/null) - set comps $results[1..-2] - set directiveLine $results[-1] + set -l comps $results[1..-2] + set -l directiveLine $results[-1] # For Fish, when completing a flag with an = (e.g., -n=) # completions must be prefixed with the flag - set flagPrefix (string match -r -- '-.*=' "$lastArg") + set -l flagPrefix (string match -r -- '-.*=' "$lastArg") __%[1]s_debug "Comps: $comps" __%[1]s_debug "DirectiveLine: $directiveLine" @@ -59,97 +74,129 @@ function __%[1]s_perform_completion printf "%%s\n" "$directiveLine" end -# This function does three things: -# 1- Obtain the completions and store them in the global __%[1]s_comp_results -# 2- Set the __%[1]s_comp_do_file_comp flag if file completion should be performed -# and unset it otherwise -# 3- Return true if the completion results are not empty +# This function does two things: +# - Obtain the completions and store them in the global __%[1]s_comp_results +# - Return false if file completion should be performed function __%[1]s_prepare_completions + __%[1]s_debug "" + __%[1]s_debug "========= starting completion logic ==========" + # Start fresh - set --erase __%[1]s_comp_do_file_comp set --erase __%[1]s_comp_results - # Check if the command-line is already provided. This is useful for testing. - if not set --query __%[1]s_comp_commandLine - set __%[1]s_comp_commandLine (commandline) - end - __%[1]s_debug "commandLine is: $__%[1]s_comp_commandLine" - - set results (__%[1]s_perform_completion "$__%[1]s_comp_commandLine") - set --erase __%[1]s_comp_commandLine + set -l results (__%[1]s_perform_completion) __%[1]s_debug "Completion results: $results" if test -z "$results" __%[1]s_debug "No completion, probably due to a failure" # Might as well do file completion, in case it helps - set --global __%[1]s_comp_do_file_comp 1 - return 0 + return 1 end - set directive (string sub --start 2 $results[-1]) + set -l directive (string sub --start 2 $results[-1]) set --global __%[1]s_comp_results $results[1..-2] __%[1]s_debug "Completions are: $__%[1]s_comp_results" __%[1]s_debug "Directive is: $directive" + set -l shellCompDirectiveError %[4]d + set -l shellCompDirectiveNoSpace %[5]d + set -l shellCompDirectiveNoFileComp %[6]d + set -l shellCompDirectiveFilterFileExt %[7]d + set -l shellCompDirectiveFilterDirs %[8]d + if test -z "$directive" set directive 0 end - set compErr (math (math --scale 0 $directive / %[3]d) %% 2) + set -l compErr (math (math --scale 0 $directive / $shellCompDirectiveError) %% 2) if test $compErr -eq 1 __%[1]s_debug "Received error directive: aborting." # Might as well do file completion, in case it helps - set --global __%[1]s_comp_do_file_comp 1 - return 0 + return 1 end - set nospace (math (math --scale 0 $directive / %[4]d) %% 2) - set nofiles (math (math --scale 0 $directive / %[5]d) %% 2) - - __%[1]s_debug "nospace: $nospace, nofiles: $nofiles" + set -l filefilter (math (math --scale 0 $directive / $shellCompDirectiveFilterFileExt) %% 2) + set -l dirfilter (math (math --scale 0 $directive / $shellCompDirectiveFilterDirs) %% 2) + if test $filefilter -eq 1; or test $dirfilter -eq 1 + __%[1]s_debug "File extension filtering or directory filtering not supported" + # Do full file completion instead + return 1 + end - # Important not to quote the variable for count to work - set numComps (count $__%[1]s_comp_results) - __%[1]s_debug "numComps: $numComps" + set -l nospace (math (math --scale 0 $directive / $shellCompDirectiveNoSpace) %% 2) + set -l nofiles (math (math --scale 0 $directive / $shellCompDirectiveNoFileComp) %% 2) - if test $numComps -eq 1; and test $nospace -ne 0 - # To support the "nospace" directive we trick the shell - # by outputting an extra, longer completion. - __%[1]s_debug "Adding second completion to perform nospace directive" - set --append __%[1]s_comp_results $__%[1]s_comp_results[1]. - end + __%[1]s_debug "nospace: $nospace, nofiles: $nofiles" - if test $numComps -eq 0; and test $nofiles -eq 0 - __%[1]s_debug "Requesting file completion" - set --global __%[1]s_comp_do_file_comp 1 + # If we want to prevent a space, or if file completion is NOT disabled, + # we need to count the number of valid completions. + # To do so, we will filter on prefix as the completions we have received + # may not already be filtered so as to allow fish to match on different + # criteria than the prefix. + if test $nospace -ne 0; or test $nofiles -eq 0 + set -l prefix (commandline -t | string escape --style=regex) + __%[1]s_debug "prefix: $prefix" + + set -l completions (string match -r -- "^$prefix.*" $__%[1]s_comp_results) + set --global __%[1]s_comp_results $completions + __%[1]s_debug "Filtered completions are: $__%[1]s_comp_results" + + # Important not to quote the variable for count to work + set -l numComps (count $__%[1]s_comp_results) + __%[1]s_debug "numComps: $numComps" + + if test $numComps -eq 1; and test $nospace -ne 0 + # We must first split on \t to get rid of the descriptions to be + # able to check what the actual completion will be. + # We don't need descriptions anyway since there is only a single + # real completion which the shell will expand immediately. + set -l split (string split --max 1 \t $__%[1]s_comp_results[1]) + + # Fish won't add a space if the completion ends with any + # of the following characters: @=/:., + set -l lastChar (string sub -s -1 -- $split) + if not string match -r -q "[@=/:.,]" -- "$lastChar" + # In other cases, to support the "nospace" directive we trick the shell + # by outputting an extra, longer completion. + __%[1]s_debug "Adding second completion to perform nospace directive" + set --global __%[1]s_comp_results $split[1] $split[1]. + __%[1]s_debug "Completions are now: $__%[1]s_comp_results" + end + end + + if test $numComps -eq 0; and test $nofiles -eq 0 + # To be consistent with bash and zsh, we only trigger file + # completion when there are no other completions + __%[1]s_debug "Requesting file completion" + return 1 + end end - # If we don't want file completion, we must return true even if there - # are no completions found. This is because fish will perform the last - # completion command, even if its condition is false, if no other - # completion command was triggered - return (not set --query __%[1]s_comp_do_file_comp) + return 0 end -# Remove any pre-existing completions for the program since we will be handling all of them -# TODO this cleanup is not sufficient. Fish completions are only loaded once the user triggers -# them, so the below deletion will not work as it is run too early. What else can we do? -complete -c %[1]s -e +# Since Fish completions are only loaded once the user triggers them, we trigger them ourselves +# so we can properly delete any completions provided by another script. +# Only do this if the program can be found, or else fish may print some errors; besides, +# the existing completions will only be loaded if the program can be found. +if type -q "%[2]s" + # The space after the program name is essential to trigger completion for the program + # and not completion of the program name itself. + # Also, we use '> /dev/null 2>&1' since '&>' is not supported in older versions of fish. + complete --do-complete "%[2]s " > /dev/null 2>&1 +end -# The order in which the below two lines are defined is very important so that __%[1]s_prepare_completions -# is called first. It is __%[1]s_prepare_completions that sets up the __%[1]s_comp_do_file_comp variable. -# -# This completion will be run second as complete commands are added FILO. -# It triggers file completion choices when __%[1]s_comp_do_file_comp is set. -complete -c %[1]s -n 'set --query __%[1]s_comp_do_file_comp' +# Remove any pre-existing completions for the program since we will be handling all of them. +complete -c %[2]s -e -# This completion will be run first as complete commands are added FILO. -# The call to __%[1]s_prepare_completions will setup both __%[1]s_comp_results abd __%[1]s_comp_do_file_comp. -# It provides the program's completion choices. -complete -c %[1]s -n '__%[1]s_prepare_completions' -f -a '$__%[1]s_comp_results' +# The call to __%[1]s_prepare_completions will setup __%[1]s_comp_results +# which provides the program's completion choices. +complete -c %[2]s -n '__%[1]s_prepare_completions' -f -a '$__%[1]s_comp_results' -`, name, compCmd, ShellCompDirectiveError, ShellCompDirectiveNoSpace, ShellCompDirectiveNoFileComp)) +`, nameForVar, name, compCmd, + ShellCompDirectiveError, ShellCompDirectiveNoSpace, ShellCompDirectiveNoFileComp, + ShellCompDirectiveFilterFileExt, ShellCompDirectiveFilterDirs)) } // GenFishCompletion generates fish completion file and writes to the passed writer. diff --git a/vendor/github.com/spf13/cobra/fish_completions.md b/vendor/github.com/spf13/cobra/fish_completions.md index 6bfe5f8..19b2ed1 100644 --- a/vendor/github.com/spf13/cobra/fish_completions.md +++ b/vendor/github.com/spf13/cobra/fish_completions.md @@ -1,7 +1,4 @@ -## Generating Fish Completions for your own cobra.Command +## Generating Fish Completions For Your cobra.Command -Cobra supports native Fish completions generated from the root `cobra.Command`. You can use the `command.GenFishCompletion()` or `command.GenFishCompletionFile()` functions. You must provide these functions with a parameter indicating if the completions should be annotated with a description; Cobra will provide the description automatically based on usage information. You can choose to make this option configurable by your users. +Please refer to [Shell Completions](shell_completions.md) for details. -### Limitations - -* Custom completions implemented using the `ValidArgsFunction` and `RegisterFlagCompletionFunc()` are supported automatically but the ones implemented in Bash scripting are not. diff --git a/vendor/github.com/spf13/cobra/go.mod b/vendor/github.com/spf13/cobra/go.mod deleted file mode 100644 index dea1030..0000000 --- a/vendor/github.com/spf13/cobra/go.mod +++ /dev/null @@ -1,12 +0,0 @@ -module github.com/spf13/cobra - -go 1.12 - -require ( - github.com/cpuguy83/go-md2man/v2 v2.0.0 - github.com/inconshreveable/mousetrap v1.0.0 - github.com/mitchellh/go-homedir v1.1.0 - github.com/spf13/pflag v1.0.3 - github.com/spf13/viper v1.4.0 - gopkg.in/yaml.v2 v2.2.2 -) diff --git a/vendor/github.com/spf13/cobra/go.sum b/vendor/github.com/spf13/cobra/go.sum deleted file mode 100644 index 3aaa2ac..0000000 --- a/vendor/github.com/spf13/cobra/go.sum +++ /dev/null @@ -1,149 +0,0 @@ -cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= -github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ= -github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= -github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU= -github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc= -github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0= -github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8= -github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q= -github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8= -github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc= -github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw= -github.com/coreos/bbolt v1.3.2/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk= -github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE= -github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk= -github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4= -github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f/go.mod h1:E3G3o1h8I7cfcXa63jLwjI0eiQQMgzzUDFVpN/nH/eA= -github.com/cpuguy83/go-md2man/v2 v2.0.0 h1:EoUDS0afbrsXAZ9YQ9jdu/mZ2sXgT1/2yyNng4PGlyM= -github.com/cpuguy83/go-md2man/v2 v2.0.0/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU= -github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= -github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= -github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ= -github.com/dgryski/go-sip13 v0.0.0-20181026042036-e10d5fee7954/go.mod h1:vAd38F8PWV+bWy6jNmig1y/TA+kYO4g3RSRF0IAv0no= -github.com/fsnotify/fsnotify v1.4.7 h1:IXs+QLmnXW2CcXuY+8Mzv/fWEsPGWxqefPtCP5CnV9I= -github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo= -github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04= -github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as= -github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE= -github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk= -github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY= -github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ= 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a/vendor/github.com/spf13/cobra/powershell_completions.go +++ b/vendor/github.com/spf13/cobra/powershell_completions.go @@ -1,6 +1,3 @@ -// PowerShell completions are based on the amazing work from clap: -// https://github.com/clap-rs/clap/blob/3294d18efe5f264d12c9035f404c7d189d4824e1/src/completions/powershell.rs -// // The generated scripts require PowerShell v5.0+ (which comes Windows 10, but // can be downloaded separately for windows 7 or 8.1). @@ -11,90 +8,278 @@ import ( "fmt" "io" "os" - "strings" - - "github.com/spf13/pflag" ) -var powerShellCompletionTemplate = `using namespace System.Management.Automation -using namespace System.Management.Automation.Language -Register-ArgumentCompleter -Native -CommandName '%s' -ScriptBlock { - param($wordToComplete, $commandAst, $cursorPosition) - $commandElements = $commandAst.CommandElements - $command = @( - '%s' - for ($i = 1; $i -lt $commandElements.Count; $i++) { - $element = $commandElements[$i] - if ($element -isnot [StringConstantExpressionAst] -or - $element.StringConstantType -ne [StringConstantType]::BareWord -or - $element.Value.StartsWith('-')) { - break - } - $element.Value - } - ) -join ';' - $completions = @(switch ($command) {%s - }) - $completions.Where{ $_.CompletionText -like "$wordToComplete*" } | - Sort-Object -Property ListItemText -}` - -func generatePowerShellSubcommandCases(out io.Writer, cmd *Command, previousCommandName string) { - var cmdName string - if previousCommandName == "" { - cmdName = cmd.Name() - } else { - cmdName = fmt.Sprintf("%s;%s", previousCommandName, cmd.Name()) - } - - fmt.Fprintf(out, "\n '%s' {", cmdName) - - cmd.Flags().VisitAll(func(flag *pflag.Flag) { - if nonCompletableFlag(flag) { - return - } - usage := escapeStringForPowerShell(flag.Usage) - if len(flag.Shorthand) > 0 { - fmt.Fprintf(out, "\n [CompletionResult]::new('-%s', '%s', [CompletionResultType]::ParameterName, '%s')", flag.Shorthand, flag.Shorthand, usage) - } - fmt.Fprintf(out, "\n [CompletionResult]::new('--%s', '%s', [CompletionResultType]::ParameterName, '%s')", flag.Name, flag.Name, usage) - }) - - for _, subCmd := range cmd.Commands() { - usage := escapeStringForPowerShell(subCmd.Short) - fmt.Fprintf(out, "\n [CompletionResult]::new('%s', '%s', [CompletionResultType]::ParameterValue, '%s')", subCmd.Name(), subCmd.Name(), usage) +func genPowerShellComp(buf io.StringWriter, name string, includeDesc bool) { + compCmd := ShellCompRequestCmd + if !includeDesc { + compCmd = ShellCompNoDescRequestCmd } + WriteStringAndCheck(buf, fmt.Sprintf(`# powershell completion for %-36[1]s -*- shell-script -*- - fmt.Fprint(out, "\n break\n }") - - for _, subCmd := range cmd.Commands() { - generatePowerShellSubcommandCases(out, subCmd, cmdName) - } +function __%[1]s_debug { + if ($env:BASH_COMP_DEBUG_FILE) { + "$args" | Out-File -Append -FilePath "$env:BASH_COMP_DEBUG_FILE" + } } -func escapeStringForPowerShell(s string) string { - return strings.Replace(s, "'", "''", -1) +filter __%[1]s_escapeStringWithSpecialChars { +`+" $_ -replace '\\s|#|@|\\$|;|,|''|\\{|\\}|\\(|\\)|\"|`|\\||<|>|&','`$&'"+` } -// GenPowerShellCompletion generates PowerShell completion file and writes to the passed writer. -func (c *Command) GenPowerShellCompletion(w io.Writer) error { - buf := new(bytes.Buffer) +Register-ArgumentCompleter -CommandName '%[1]s' -ScriptBlock { + param( + $WordToComplete, + $CommandAst, + $CursorPosition + ) + + # Get the current command line and convert into a string + $Command = $CommandAst.CommandElements + $Command = "$Command" + + __%[1]s_debug "" + __%[1]s_debug "========= starting completion logic ==========" + __%[1]s_debug "WordToComplete: $WordToComplete Command: $Command CursorPosition: $CursorPosition" + + # The user could have moved the cursor backwards on the command-line. + # We need to trigger completion from the $CursorPosition location, so we need + # to truncate the command-line ($Command) up to the $CursorPosition location. + # Make sure the $Command is longer then the $CursorPosition before we truncate. + # This happens because the $Command does not include the last space. + if ($Command.Length -gt $CursorPosition) { + $Command=$Command.Substring(0,$CursorPosition) + } + __%[1]s_debug "Truncated command: $Command" + + $ShellCompDirectiveError=%[3]d + $ShellCompDirectiveNoSpace=%[4]d + $ShellCompDirectiveNoFileComp=%[5]d + $ShellCompDirectiveFilterFileExt=%[6]d + $ShellCompDirectiveFilterDirs=%[7]d + + # Prepare the command to request completions for the program. + # Split the command at the first space to separate the program and arguments. + $Program,$Arguments = $Command.Split(" ",2) + $RequestComp="$Program %[2]s $Arguments" + __%[1]s_debug "RequestComp: $RequestComp" + + # we cannot use $WordToComplete because it + # has the wrong values if the cursor was moved + # so use the last argument + if ($WordToComplete -ne "" ) { + $WordToComplete = $Arguments.Split(" ")[-1] + } + __%[1]s_debug "New WordToComplete: $WordToComplete" + + + # Check for flag with equal sign + $IsEqualFlag = ($WordToComplete -Like "--*=*" ) + if ( $IsEqualFlag ) { + __%[1]s_debug "Completing equal sign flag" + # Remove the flag part + $Flag,$WordToComplete = $WordToComplete.Split("=",2) + } + + if ( $WordToComplete -eq "" -And ( -Not $IsEqualFlag )) { + # If the last parameter is complete (there is a space following it) + # We add an extra empty parameter so we can indicate this to the go method. + __%[1]s_debug "Adding extra empty parameter" +`+" # We need to use `\"`\" to pass an empty argument a \"\" or '' does not work!!!"+` +`+" $RequestComp=\"$RequestComp\" + ' `\"`\"'"+` + } + + __%[1]s_debug "Calling $RequestComp" + #call the command store the output in $out and redirect stderr and stdout to null + # $Out is an array contains each line per element + Invoke-Expression -OutVariable out "$RequestComp" 2>&1 | Out-Null + + + # get directive from last line + [int]$Directive = $Out[-1].TrimStart(':') + if ($Directive -eq "") { + # There is no directive specified + $Directive = 0 + } + __%[1]s_debug "The completion directive is: $Directive" + + # remove directive (last element) from out + $Out = $Out | Where-Object { $_ -ne $Out[-1] } + __%[1]s_debug "The completions are: $Out" + + if (($Directive -band $ShellCompDirectiveError) -ne 0 ) { + # Error code. No completion. + __%[1]s_debug "Received error from custom completion go code" + return + } + + $Longest = 0 + $Values = $Out | ForEach-Object { + #Split the output in name and description +`+" $Name, $Description = $_.Split(\"`t\",2)"+` + __%[1]s_debug "Name: $Name Description: $Description" + + # Look for the longest completion so that we can format things nicely + if ($Longest -lt $Name.Length) { + $Longest = $Name.Length + } + + # Set the description to a one space string if there is none set. + # This is needed because the CompletionResult does not accept an empty string as argument + if (-Not $Description) { + $Description = " " + } + @{Name="$Name";Description="$Description"} + } + + + $Space = " " + if (($Directive -band $ShellCompDirectiveNoSpace) -ne 0 ) { + # remove the space here + __%[1]s_debug "ShellCompDirectiveNoSpace is called" + $Space = "" + } + + if ((($Directive -band $ShellCompDirectiveFilterFileExt) -ne 0 ) -or + (($Directive -band $ShellCompDirectiveFilterDirs) -ne 0 )) { + __%[1]s_debug "ShellCompDirectiveFilterFileExt ShellCompDirectiveFilterDirs are not supported" + + # return here to prevent the completion of the extensions + return + } + + $Values = $Values | Where-Object { + # filter the result + $_.Name -like "$WordToComplete*" + + # Join the flag back if we have an equal sign flag + if ( $IsEqualFlag ) { + __%[1]s_debug "Join the equal sign flag back to the completion value" + $_.Name = $Flag + "=" + $_.Name + } + } - var subCommandCases bytes.Buffer - generatePowerShellSubcommandCases(&subCommandCases, c, "") - fmt.Fprintf(buf, powerShellCompletionTemplate, c.Name(), c.Name(), subCommandCases.String()) + if (($Directive -band $ShellCompDirectiveNoFileComp) -ne 0 ) { + __%[1]s_debug "ShellCompDirectiveNoFileComp is called" + if ($Values.Length -eq 0) { + # Just print an empty string here so the + # shell does not start to complete paths. + # We cannot use CompletionResult here because + # it does not accept an empty string as argument. + "" + return + } + } + + # Get the current mode + $Mode = (Get-PSReadLineKeyHandler | Where-Object {$_.Key -eq "Tab" }).Function + __%[1]s_debug "Mode: $Mode" + + $Values | ForEach-Object { + + # store temporary because switch will overwrite $_ + $comp = $_ + + # PowerShell supports three different completion modes + # - TabCompleteNext (default windows style - on each key press the next option is displayed) + # - Complete (works like bash) + # - MenuComplete (works like zsh) + # You set the mode with Set-PSReadLineKeyHandler -Key Tab -Function + + # CompletionResult Arguments: + # 1) CompletionText text to be used as the auto completion result + # 2) ListItemText text to be displayed in the suggestion list + # 3) ResultType type of completion result + # 4) ToolTip text for the tooltip with details about the object + + switch ($Mode) { + + # bash like + "Complete" { + + if ($Values.Length -eq 1) { + __%[1]s_debug "Only one completion left" + + # insert space after value + [System.Management.Automation.CompletionResult]::new($($comp.Name | __%[1]s_escapeStringWithSpecialChars) + $Space, "$($comp.Name)", 'ParameterValue', "$($comp.Description)") + + } else { + # Add the proper number of spaces to align the descriptions + while($comp.Name.Length -lt $Longest) { + $comp.Name = $comp.Name + " " + } + + # Check for empty description and only add parentheses if needed + if ($($comp.Description) -eq " " ) { + $Description = "" + } else { + $Description = " ($($comp.Description))" + } + + [System.Management.Automation.CompletionResult]::new("$($comp.Name)$Description", "$($comp.Name)$Description", 'ParameterValue', "$($comp.Description)") + } + } + + # zsh like + "MenuComplete" { + # insert space after value + # MenuComplete will automatically show the ToolTip of + # the highlighted value at the bottom of the suggestions. + [System.Management.Automation.CompletionResult]::new($($comp.Name | __%[1]s_escapeStringWithSpecialChars) + $Space, "$($comp.Name)", 'ParameterValue', "$($comp.Description)") + } + + # TabCompleteNext and in case we get something unknown + Default { + # Like MenuComplete but we don't want to add a space here because + # the user need to press space anyway to get the completion. + # Description will not be shown because thats not possible with TabCompleteNext + [System.Management.Automation.CompletionResult]::new($($comp.Name | __%[1]s_escapeStringWithSpecialChars), "$($comp.Name)", 'ParameterValue', "$($comp.Description)") + } + } + + } +} +`, name, compCmd, + ShellCompDirectiveError, ShellCompDirectiveNoSpace, ShellCompDirectiveNoFileComp, + ShellCompDirectiveFilterFileExt, ShellCompDirectiveFilterDirs)) +} + +func (c *Command) genPowerShellCompletion(w io.Writer, includeDesc bool) error { + buf := new(bytes.Buffer) + genPowerShellComp(buf, c.Name(), includeDesc) _, err := buf.WriteTo(w) return err } -// GenPowerShellCompletionFile generates PowerShell completion file. -func (c *Command) GenPowerShellCompletionFile(filename string) error { +func (c *Command) genPowerShellCompletionFile(filename string, includeDesc bool) error { outFile, err := os.Create(filename) if err != nil { return err } defer outFile.Close() - return c.GenPowerShellCompletion(outFile) + return c.genPowerShellCompletion(outFile, includeDesc) +} + +// GenPowerShellCompletionFile generates powershell completion file without descriptions. +func (c *Command) GenPowerShellCompletionFile(filename string) error { + return c.genPowerShellCompletionFile(filename, false) +} + +// GenPowerShellCompletion generates powershell completion file without descriptions +// and writes it to the passed writer. +func (c *Command) GenPowerShellCompletion(w io.Writer) error { + return c.genPowerShellCompletion(w, false) +} + +// GenPowerShellCompletionFileWithDesc generates powershell completion file with descriptions. +func (c *Command) GenPowerShellCompletionFileWithDesc(filename string) error { + return c.genPowerShellCompletionFile(filename, true) +} + +// GenPowerShellCompletionWithDesc generates powershell completion file with descriptions +// and writes it to the passed writer. +func (c *Command) GenPowerShellCompletionWithDesc(w io.Writer) error { + return c.genPowerShellCompletion(w, true) } diff --git a/vendor/github.com/spf13/cobra/powershell_completions.md b/vendor/github.com/spf13/cobra/powershell_completions.md index afed802..c449f1e 100644 --- a/vendor/github.com/spf13/cobra/powershell_completions.md +++ b/vendor/github.com/spf13/cobra/powershell_completions.md @@ -1,14 +1,3 @@ # Generating PowerShell Completions For Your Own cobra.Command -Cobra can generate PowerShell completion scripts. Users need PowerShell version 5.0 or above, which comes with Windows 10 and can be downloaded separately for Windows 7 or 8.1. They can then write the completions to a file and source this file from their PowerShell profile, which is referenced by the `$Profile` environment variable. See `Get-Help about_Profiles` for more info about PowerShell profiles. - -# What's supported - -- Completion for subcommands using their `.Short` description -- Completion for non-hidden flags using their `.Name` and `.Shorthand` - -# What's not yet supported - -- Command aliases -- Required, filename or custom flags (they will work like normal flags) -- Custom completion scripts +Please refer to [Shell Completions](shell_completions.md#powershell-completions) for details. diff --git a/vendor/github.com/spf13/cobra/projects_using_cobra.md b/vendor/github.com/spf13/cobra/projects_using_cobra.md new file mode 100644 index 0000000..d98a71e --- /dev/null +++ b/vendor/github.com/spf13/cobra/projects_using_cobra.md @@ -0,0 +1,38 @@ +## Projects using Cobra + +- [Arduino CLI](https://github.com/arduino/arduino-cli) +- [Bleve](http://www.blevesearch.com/) +- [CockroachDB](http://www.cockroachlabs.com/) +- [Cosmos SDK](https://github.com/cosmos/cosmos-sdk) +- [Delve](https://github.com/derekparker/delve) +- [Docker (distribution)](https://github.com/docker/distribution) +- [Etcd](https://etcd.io/) +- [Gardener](https://github.com/gardener/gardenctl) +- [Giant Swarm's gsctl](https://github.com/giantswarm/gsctl) +- [Git Bump](https://github.com/erdaltsksn/git-bump) +- [Github CLI](https://github.com/cli/cli) +- [GitHub Labeler](https://github.com/erdaltsksn/gh-label) +- [Golangci-lint](https://golangci-lint.run) +- [GopherJS](http://www.gopherjs.org/) +- [Helm](https://helm.sh) +- [Hugo](https://gohugo.io) +- [Istio](https://istio.io) +- [Kool](https://github.com/kool-dev/kool) +- [Kubernetes](http://kubernetes.io/) +- [Linkerd](https://linkerd.io/) +- [Mattermost-server](https://github.com/mattermost/mattermost-server) +- [Metal Stack CLI](https://github.com/metal-stack/metalctl) +- [Moby (former Docker)](https://github.com/moby/moby) +- [Nanobox](https://github.com/nanobox-io/nanobox)/[Nanopack](https://github.com/nanopack) +- [OpenShift](https://www.openshift.com/) +- [Ory Hydra](https://github.com/ory/hydra) +- [Ory Kratos](https://github.com/ory/kratos) +- [Pouch](https://github.com/alibaba/pouch) +- [ProjectAtomic (enterprise)](http://www.projectatomic.io/) +- [Prototool](https://github.com/uber/prototool) +- [Random](https://github.com/erdaltsksn/random) +- [Rclone](https://rclone.org/) +- [Skaffold](https://skaffold.dev/) +- [Tendermint](https://github.com/tendermint/tendermint) +- [Twitch CLI](https://github.com/twitchdev/twitch-cli) +- [Werf](https://werf.io/) diff --git a/vendor/github.com/spf13/cobra/shell_completions.go b/vendor/github.com/spf13/cobra/shell_completions.go index ba0af9c..d99bf91 100644 --- a/vendor/github.com/spf13/cobra/shell_completions.go +++ b/vendor/github.com/spf13/cobra/shell_completions.go @@ -4,82 +4,81 @@ import ( "github.com/spf13/pflag" ) -// MarkFlagRequired adds the BashCompOneRequiredFlag annotation to the named flag if it exists, +// MarkFlagRequired instructs the various shell completion implementations to +// prioritize the named flag when performing completion, // and causes your command to report an error if invoked without the flag. func (c *Command) MarkFlagRequired(name string) error { return MarkFlagRequired(c.Flags(), name) } -// MarkPersistentFlagRequired adds the BashCompOneRequiredFlag annotation to the named persistent flag if it exists, +// MarkPersistentFlagRequired instructs the various shell completion implementations to +// prioritize the named persistent flag when performing completion, // and causes your command to report an error if invoked without the flag. func (c *Command) MarkPersistentFlagRequired(name string) error { return MarkFlagRequired(c.PersistentFlags(), name) } -// MarkFlagRequired adds the BashCompOneRequiredFlag annotation to the named flag if it exists, +// MarkFlagRequired instructs the various shell completion implementations to +// prioritize the named flag when performing completion, // and causes your command to report an error if invoked without the flag. func MarkFlagRequired(flags *pflag.FlagSet, name string) error { return flags.SetAnnotation(name, BashCompOneRequiredFlag, []string{"true"}) } -// MarkFlagFilename adds the BashCompFilenameExt annotation to the named flag, if it exists. -// Generated bash autocompletion will select filenames for the flag, limiting to named extensions if provided. +// MarkFlagFilename instructs the various shell completion implementations to +// limit completions for the named flag to the specified file extensions. func (c *Command) MarkFlagFilename(name string, extensions ...string) error { return MarkFlagFilename(c.Flags(), name, extensions...) } // MarkFlagCustom adds the BashCompCustom annotation to the named flag, if it exists. -// Generated bash autocompletion will call the bash function f for the flag. +// The bash completion script will call the bash function f for the flag. +// +// This will only work for bash completion. +// It is recommended to instead use c.RegisterFlagCompletionFunc(...) which allows +// to register a Go function which will work across all shells. func (c *Command) MarkFlagCustom(name string, f string) error { return MarkFlagCustom(c.Flags(), name, f) } // MarkPersistentFlagFilename instructs the various shell completion -// implementations to limit completions for this persistent flag to the -// specified extensions (patterns). -// -// Shell Completion compatibility matrix: bash, zsh +// implementations to limit completions for the named persistent flag to the +// specified file extensions. func (c *Command) MarkPersistentFlagFilename(name string, extensions ...string) error { return MarkFlagFilename(c.PersistentFlags(), name, extensions...) } // MarkFlagFilename instructs the various shell completion implementations to -// limit completions for this flag to the specified extensions (patterns). -// -// Shell Completion compatibility matrix: bash, zsh +// limit completions for the named flag to the specified file extensions. func MarkFlagFilename(flags *pflag.FlagSet, name string, extensions ...string) error { return flags.SetAnnotation(name, BashCompFilenameExt, extensions) } -// MarkFlagCustom instructs the various shell completion implementations to -// limit completions for this flag to the specified extensions (patterns). +// MarkFlagCustom adds the BashCompCustom annotation to the named flag, if it exists. +// The bash completion script will call the bash function f for the flag. // -// Shell Completion compatibility matrix: bash, zsh +// This will only work for bash completion. +// It is recommended to instead use c.RegisterFlagCompletionFunc(...) which allows +// to register a Go function which will work across all shells. func MarkFlagCustom(flags *pflag.FlagSet, name string, f string) error { return flags.SetAnnotation(name, BashCompCustom, []string{f}) } // MarkFlagDirname instructs the various shell completion implementations to -// complete only directories with this named flag. -// -// Shell Completion compatibility matrix: zsh +// limit completions for the named flag to directory names. func (c *Command) MarkFlagDirname(name string) error { return MarkFlagDirname(c.Flags(), name) } // MarkPersistentFlagDirname instructs the various shell completion -// implementations to complete only directories with this persistent named flag. -// -// Shell Completion compatibility matrix: zsh +// implementations to limit completions for the named persistent flag to +// directory names. func (c *Command) MarkPersistentFlagDirname(name string) error { return MarkFlagDirname(c.PersistentFlags(), name) } // MarkFlagDirname instructs the various shell completion implementations to -// complete only directories with this specified flag. -// -// Shell Completion compatibility matrix: zsh +// limit completions for the named flag to directory names. func MarkFlagDirname(flags *pflag.FlagSet, name string) error { - zshPattern := "-(/)" - return flags.SetAnnotation(name, zshCompDirname, []string{zshPattern}) + return flags.SetAnnotation(name, BashCompSubdirsInDir, []string{}) } diff --git a/vendor/github.com/spf13/cobra/shell_completions.md b/vendor/github.com/spf13/cobra/shell_completions.md new file mode 100644 index 0000000..4ba06a1 --- /dev/null +++ b/vendor/github.com/spf13/cobra/shell_completions.md @@ -0,0 +1,546 @@ +# Generating shell completions + +Cobra can generate shell completions for multiple shells. +The currently supported shells are: +- Bash +- Zsh +- fish +- PowerShell + +Cobra will automatically provide your program with a fully functional `completion` command, +similarly to how it provides the `help` command. + +## Creating your own completion command + +If you do not wish to use the default `completion` command, you can choose to +provide your own, which will take precedence over the default one. (This also provides +backwards-compatibility with programs that already have their own `completion` command.) + +If you are using the generator, you can create a completion command by running + +```bash +cobra add completion +``` +and then modifying the generated `cmd/completion.go` file to look something like this +(writing the shell script to stdout allows the most flexible use): + +```go +var completionCmd = &cobra.Command{ + Use: "completion [bash|zsh|fish|powershell]", + Short: "Generate completion script", + Long: `To load completions: + +Bash: + + $ source <(yourprogram completion bash) + + # To load completions for each session, execute once: + # Linux: + $ yourprogram completion bash > /etc/bash_completion.d/yourprogram + # macOS: + $ yourprogram completion bash > /usr/local/etc/bash_completion.d/yourprogram + +Zsh: + + # If shell completion is not already enabled in your environment, + # you will need to enable it. You can execute the following once: + + $ echo "autoload -U compinit; compinit" >> ~/.zshrc + + # To load completions for each session, execute once: + $ yourprogram completion zsh > "${fpath[1]}/_yourprogram" + + # You will need to start a new shell for this setup to take effect. + +fish: + + $ yourprogram completion fish | source + + # To load completions for each session, execute once: + $ yourprogram completion fish > ~/.config/fish/completions/yourprogram.fish + +PowerShell: + + PS> yourprogram completion powershell | Out-String | Invoke-Expression + + # To load completions for every new session, run: + PS> yourprogram completion powershell > yourprogram.ps1 + # and source this file from your PowerShell profile. +`, + DisableFlagsInUseLine: true, + ValidArgs: []string{"bash", "zsh", "fish", "powershell"}, + Args: cobra.ExactValidArgs(1), + Run: func(cmd *cobra.Command, args []string) { + switch args[0] { + case "bash": + cmd.Root().GenBashCompletion(os.Stdout) + case "zsh": + cmd.Root().GenZshCompletion(os.Stdout) + case "fish": + cmd.Root().GenFishCompletion(os.Stdout, true) + case "powershell": + cmd.Root().GenPowerShellCompletionWithDesc(os.Stdout) + } + }, +} +``` + +**Note:** The cobra generator may include messages printed to stdout, for example, if the config file is loaded; this will break the auto-completion script so must be removed. + +## Adapting the default completion command + +Cobra provides a few options for the default `completion` command. To configure such options you must set +the `CompletionOptions` field on the *root* command. + +To tell Cobra *not* to provide the default `completion` command: +``` +rootCmd.CompletionOptions.DisableDefaultCmd = true +``` + +To tell Cobra *not* to provide the user with the `--no-descriptions` flag to the completion sub-commands: +``` +rootCmd.CompletionOptions.DisableNoDescFlag = true +``` + +To tell Cobra to completely disable descriptions for completions: +``` +rootCmd.CompletionOptions.DisableDescriptions = true +``` + +# Customizing completions + +The generated completion scripts will automatically handle completing commands and flags. However, you can make your completions much more powerful by providing information to complete your program's nouns and flag values. + +## Completion of nouns + +### Static completion of nouns + +Cobra allows you to provide a pre-defined list of completion choices for your nouns using the `ValidArgs` field. +For example, if you want `kubectl get [tab][tab]` to show a list of valid "nouns" you have to set them. +Some simplified code from `kubectl get` looks like: + +```go +validArgs []string = { "pod", "node", "service", "replicationcontroller" } + +cmd := &cobra.Command{ + Use: "get [(-o|--output=)json|yaml|template|...] (RESOURCE [NAME] | RESOURCE/NAME ...)", + Short: "Display one or many resources", + Long: get_long, + Example: get_example, + Run: func(cmd *cobra.Command, args []string) { + cobra.CheckErr(RunGet(f, out, cmd, args)) + }, + ValidArgs: validArgs, +} +``` + +Notice we put the `ValidArgs` field on the `get` sub-command. Doing so will give results like: + +```bash +$ kubectl get [tab][tab] +node pod replicationcontroller service +``` + +#### Aliases for nouns + +If your nouns have aliases, you can define them alongside `ValidArgs` using `ArgAliases`: + +```go +argAliases []string = { "pods", "nodes", "services", "svc", "replicationcontrollers", "rc" } + +cmd := &cobra.Command{ + ... + ValidArgs: validArgs, + ArgAliases: argAliases +} +``` + +The aliases are not shown to the user on tab completion, but they are accepted as valid nouns by +the completion algorithm if entered manually, e.g. in: + +```bash +$ kubectl get rc [tab][tab] +backend frontend database +``` + +Note that without declaring `rc` as an alias, the completion algorithm would not know to show the list of +replication controllers following `rc`. + +### Dynamic completion of nouns + +In some cases it is not possible to provide a list of completions in advance. Instead, the list of completions must be determined at execution-time. In a similar fashion as for static completions, you can use the `ValidArgsFunction` field to provide a Go function that Cobra will execute when it needs the list of completion choices for the nouns of a command. Note that either `ValidArgs` or `ValidArgsFunction` can be used for a single cobra command, but not both. +Simplified code from `helm status` looks like: + +```go +cmd := &cobra.Command{ + Use: "status RELEASE_NAME", + Short: "Display the status of the named release", + Long: status_long, + RunE: func(cmd *cobra.Command, args []string) { + RunGet(args[0]) + }, + ValidArgsFunction: func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) { + if len(args) != 0 { + return nil, cobra.ShellCompDirectiveNoFileComp + } + return getReleasesFromCluster(toComplete), cobra.ShellCompDirectiveNoFileComp + }, +} +``` +Where `getReleasesFromCluster()` is a Go function that obtains the list of current Helm releases running on the Kubernetes cluster. +Notice we put the `ValidArgsFunction` on the `status` sub-command. Let's assume the Helm releases on the cluster are: `harbor`, `notary`, `rook` and `thanos` then this dynamic completion will give results like: + +```bash +$ helm status [tab][tab] +harbor notary rook thanos +``` +You may have noticed the use of `cobra.ShellCompDirective`. These directives are bit fields allowing to control some shell completion behaviors for your particular completion. You can combine them with the bit-or operator such as `cobra.ShellCompDirectiveNoSpace | cobra.ShellCompDirectiveNoFileComp` +```go +// Indicates that the shell will perform its default behavior after completions +// have been provided (this implies none of the other directives). +ShellCompDirectiveDefault + +// Indicates an error occurred and completions should be ignored. +ShellCompDirectiveError + +// Indicates that the shell should not add a space after the completion, +// even if there is a single completion provided. +ShellCompDirectiveNoSpace + +// Indicates that the shell should not provide file completion even when +// no completion is provided. +ShellCompDirectiveNoFileComp + +// Indicates that the returned completions should be used as file extension filters. +// For example, to complete only files of the form *.json or *.yaml: +// return []string{"yaml", "json"}, ShellCompDirectiveFilterFileExt +// For flags, using MarkFlagFilename() and MarkPersistentFlagFilename() +// is a shortcut to using this directive explicitly. +// +ShellCompDirectiveFilterFileExt + +// Indicates that only directory names should be provided in file completion. +// For example: +// return nil, ShellCompDirectiveFilterDirs +// For flags, using MarkFlagDirname() is a shortcut to using this directive explicitly. +// +// To request directory names within another directory, the returned completions +// should specify a single directory name within which to search. For example, +// to complete directories within "themes/": +// return []string{"themes"}, ShellCompDirectiveFilterDirs +// +ShellCompDirectiveFilterDirs +``` + +***Note***: When using the `ValidArgsFunction`, Cobra will call your registered function after having parsed all flags and arguments provided in the command-line. You therefore don't need to do this parsing yourself. For example, when a user calls `helm status --namespace my-rook-ns [tab][tab]`, Cobra will call your registered `ValidArgsFunction` after having parsed the `--namespace` flag, as it would have done when calling the `RunE` function. + +#### Debugging + +Cobra achieves dynamic completion through the use of a hidden command called by the completion script. To debug your Go completion code, you can call this hidden command directly: +```bash +$ helm __complete status har +harbor +:4 +Completion ended with directive: ShellCompDirectiveNoFileComp # This is on stderr +``` +***Important:*** If the noun to complete is empty (when the user has not yet typed any letters of that noun), you must pass an empty parameter to the `__complete` command: +```bash +$ helm __complete status "" +harbor +notary +rook +thanos +:4 +Completion ended with directive: ShellCompDirectiveNoFileComp # This is on stderr +``` +Calling the `__complete` command directly allows you to run the Go debugger to troubleshoot your code. You can also add printouts to your code; Cobra provides the following functions to use for printouts in Go completion code: +```go +// Prints to the completion script debug file (if BASH_COMP_DEBUG_FILE +// is set to a file path) and optionally prints to stderr. +cobra.CompDebug(msg string, printToStdErr bool) { +cobra.CompDebugln(msg string, printToStdErr bool) + +// Prints to the completion script debug file (if BASH_COMP_DEBUG_FILE +// is set to a file path) and to stderr. +cobra.CompError(msg string) +cobra.CompErrorln(msg string) +``` +***Important:*** You should **not** leave traces that print directly to stdout in your completion code as they will be interpreted as completion choices by the completion script. Instead, use the cobra-provided debugging traces functions mentioned above. + +## Completions for flags + +### Mark flags as required + +Most of the time completions will only show sub-commands. But if a flag is required to make a sub-command work, you probably want it to show up when the user types [tab][tab]. You can mark a flag as 'Required' like so: + +```go +cmd.MarkFlagRequired("pod") +cmd.MarkFlagRequired("container") +``` + +and you'll get something like + +```bash +$ kubectl exec [tab][tab] +-c --container= -p --pod= +``` + +### Specify dynamic flag completion + +As for nouns, Cobra provides a way of defining dynamic completion of flags. To provide a Go function that Cobra will execute when it needs the list of completion choices for a flag, you must register the function using the `command.RegisterFlagCompletionFunc()` function. + +```go +flagName := "output" +cmd.RegisterFlagCompletionFunc(flagName, func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) { + return []string{"json", "table", "yaml"}, cobra.ShellCompDirectiveDefault +}) +``` +Notice that calling `RegisterFlagCompletionFunc()` is done through the `command` with which the flag is associated. In our example this dynamic completion will give results like so: + +```bash +$ helm status --output [tab][tab] +json table yaml +``` + +#### Debugging + +You can also easily debug your Go completion code for flags: +```bash +$ helm __complete status --output "" +json +table +yaml +:4 +Completion ended with directive: ShellCompDirectiveNoFileComp # This is on stderr +``` +***Important:*** You should **not** leave traces that print to stdout in your completion code as they will be interpreted as completion choices by the completion script. Instead, use the cobra-provided debugging traces functions mentioned further above. + +### Specify valid filename extensions for flags that take a filename + +To limit completions of flag values to file names with certain extensions you can either use the different `MarkFlagFilename()` functions or a combination of `RegisterFlagCompletionFunc()` and `ShellCompDirectiveFilterFileExt`, like so: +```go +flagName := "output" +cmd.MarkFlagFilename(flagName, "yaml", "json") +``` +or +```go +flagName := "output" +cmd.RegisterFlagCompletionFunc(flagName, func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) { + return []string{"yaml", "json"}, ShellCompDirectiveFilterFileExt}) +``` + +### Limit flag completions to directory names + +To limit completions of flag values to directory names you can either use the `MarkFlagDirname()` functions or a combination of `RegisterFlagCompletionFunc()` and `ShellCompDirectiveFilterDirs`, like so: +```go +flagName := "output" +cmd.MarkFlagDirname(flagName) +``` +or +```go +flagName := "output" +cmd.RegisterFlagCompletionFunc(flagName, func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) { + return nil, cobra.ShellCompDirectiveFilterDirs +}) +``` +To limit completions of flag values to directory names *within another directory* you can use a combination of `RegisterFlagCompletionFunc()` and `ShellCompDirectiveFilterDirs` like so: +```go +flagName := "output" +cmd.RegisterFlagCompletionFunc(flagName, func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) { + return []string{"themes"}, cobra.ShellCompDirectiveFilterDirs +}) +``` +### Descriptions for completions + +Cobra provides support for completion descriptions. Such descriptions are supported for each shell +(however, for bash, it is only available in the [completion V2 version](#bash-completion-v2)). +For commands and flags, Cobra will provide the descriptions automatically, based on usage information. +For example, using zsh: +``` +$ helm s[tab] +search -- search for a keyword in charts +show -- show information of a chart +status -- displays the status of the named release +``` +while using fish: +``` +$ helm s[tab] +search (search for a keyword in charts) show (show information of a chart) status (displays the status of the named release) +``` + +Cobra allows you to add descriptions to your own completions. Simply add the description text after each completion, following a `\t` separator. This technique applies to completions returned by `ValidArgs`, `ValidArgsFunction` and `RegisterFlagCompletionFunc()`. For example: +```go +ValidArgsFunction: func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) { + return []string{"harbor\tAn image registry", "thanos\tLong-term metrics"}, cobra.ShellCompDirectiveNoFileComp +}} +``` +or +```go +ValidArgs: []string{"bash\tCompletions for bash", "zsh\tCompletions for zsh"} +``` +## Bash completions + +### Dependencies + +The bash completion script generated by Cobra requires the `bash_completion` package. You should update the help text of your completion command to show how to install the `bash_completion` package ([Kubectl docs](https://kubernetes.io/docs/tasks/tools/install-kubectl/#enabling-shell-autocompletion)) + +### Aliases + +You can also configure `bash` aliases for your program and they will also support completions. + +```bash +alias aliasname=origcommand +complete -o default -F __start_origcommand aliasname + +# and now when you run `aliasname` completion will make +# suggestions as it did for `origcommand`. + +$ aliasname +completion firstcommand secondcommand +``` +### Bash legacy dynamic completions + +For backward compatibility, Cobra still supports its bash legacy dynamic completion solution. +Please refer to [Bash Completions](bash_completions.md) for details. + +### Bash completion V2 + +Cobra provides two versions for bash completion. The original bash completion (which started it all!) can be used by calling +`GenBashCompletion()` or `GenBashCompletionFile()`. + +A new V2 bash completion version is also available. This version can be used by calling `GenBashCompletionV2()` or +`GenBashCompletionFileV2()`. The V2 version does **not** support the legacy dynamic completion +(see [Bash Completions](bash_completions.md)) but instead works only with the Go dynamic completion +solution described in this document. +Unless your program already uses the legacy dynamic completion solution, it is recommended that you use the bash +completion V2 solution which provides the following extra features: +- Supports completion descriptions (like the other shells) +- Small completion script of less than 300 lines (v1 generates scripts of thousands of lines; `kubectl` for example has a bash v1 completion script of over 13K lines) +- Streamlined user experience thanks to a completion behavior aligned with the other shells + +`Bash` completion V2 supports descriptions for completions. When calling `GenBashCompletionV2()` or `GenBashCompletionFileV2()` +you must provide these functions with a parameter indicating if the completions should be annotated with a description; Cobra +will provide the description automatically based on usage information. You can choose to make this option configurable by +your users. + +``` +# With descriptions +$ helm s[tab][tab] +search (search for a keyword in charts) status (display the status of the named release) +show (show information of a chart) + +# Without descriptions +$ helm s[tab][tab] +search show status +``` +**Note**: Cobra's default `completion` command uses bash completion V2. If for some reason you need to use bash completion V1, you will need to implement your own `completion` command. +## Zsh completions + +Cobra supports native zsh completion generated from the root `cobra.Command`. +The generated completion script should be put somewhere in your `$fpath` and be named +`_`. You will need to start a new shell for the completions to become available. + +Zsh supports descriptions for completions. Cobra will provide the description automatically, +based on usage information. Cobra provides a way to completely disable such descriptions by +using `GenZshCompletionNoDesc()` or `GenZshCompletionFileNoDesc()`. You can choose to make +this a configurable option to your users. +``` +# With descriptions +$ helm s[tab] +search -- search for a keyword in charts +show -- show information of a chart +status -- displays the status of the named release + +# Without descriptions +$ helm s[tab] +search show status +``` +*Note*: Because of backward-compatibility requirements, we were forced to have a different API to disable completion descriptions between `zsh` and `fish`. + +### Limitations + +* Custom completions implemented in Bash scripting (legacy) are not supported and will be ignored for `zsh` (including the use of the `BashCompCustom` flag annotation). + * You should instead use `ValidArgsFunction` and `RegisterFlagCompletionFunc()` which are portable to the different shells (`bash`, `zsh`, `fish`, `powershell`). +* The function `MarkFlagCustom()` is not supported and will be ignored for `zsh`. + * You should instead use `RegisterFlagCompletionFunc()`. + +### Zsh completions standardization + +Cobra 1.1 standardized its zsh completion support to align it with its other shell completions. Although the API was kept backward-compatible, some small changes in behavior were introduced. +Please refer to [Zsh Completions](zsh_completions.md) for details. + +## fish completions + +Cobra supports native fish completions generated from the root `cobra.Command`. You can use the `command.GenFishCompletion()` or `command.GenFishCompletionFile()` functions. You must provide these functions with a parameter indicating if the completions should be annotated with a description; Cobra will provide the description automatically based on usage information. You can choose to make this option configurable by your users. +``` +# With descriptions +$ helm s[tab] +search (search for a keyword in charts) show (show information of a chart) status (displays the status of the named release) + +# Without descriptions +$ helm s[tab] +search show status +``` +*Note*: Because of backward-compatibility requirements, we were forced to have a different API to disable completion descriptions between `zsh` and `fish`. + +### Limitations + +* Custom completions implemented in bash scripting (legacy) are not supported and will be ignored for `fish` (including the use of the `BashCompCustom` flag annotation). + * You should instead use `ValidArgsFunction` and `RegisterFlagCompletionFunc()` which are portable to the different shells (`bash`, `zsh`, `fish`, `powershell`). +* The function `MarkFlagCustom()` is not supported and will be ignored for `fish`. + * You should instead use `RegisterFlagCompletionFunc()`. +* The following flag completion annotations are not supported and will be ignored for `fish`: + * `BashCompFilenameExt` (filtering by file extension) + * `BashCompSubdirsInDir` (filtering by directory) +* The functions corresponding to the above annotations are consequently not supported and will be ignored for `fish`: + * `MarkFlagFilename()` and `MarkPersistentFlagFilename()` (filtering by file extension) + * `MarkFlagDirname()` and `MarkPersistentFlagDirname()` (filtering by directory) +* Similarly, the following completion directives are not supported and will be ignored for `fish`: + * `ShellCompDirectiveFilterFileExt` (filtering by file extension) + * `ShellCompDirectiveFilterDirs` (filtering by directory) + +## PowerShell completions + +Cobra supports native PowerShell completions generated from the root `cobra.Command`. You can use the `command.GenPowerShellCompletion()` or `command.GenPowerShellCompletionFile()` functions. To include descriptions use `command.GenPowerShellCompletionWithDesc()` and `command.GenPowerShellCompletionFileWithDesc()`. Cobra will provide the description automatically based on usage information. You can choose to make this option configurable by your users. + +The script is designed to support all three PowerShell completion modes: + +* TabCompleteNext (default windows style - on each key press the next option is displayed) +* Complete (works like bash) +* MenuComplete (works like zsh) + +You set the mode with `Set-PSReadLineKeyHandler -Key Tab -Function `. Descriptions are only displayed when using the `Complete` or `MenuComplete` mode. + +Users need PowerShell version 5.0 or above, which comes with Windows 10 and can be downloaded separately for Windows 7 or 8.1. They can then write the completions to a file and source this file from their PowerShell profile, which is referenced by the `$Profile` environment variable. See `Get-Help about_Profiles` for more info about PowerShell profiles. + +``` +# With descriptions and Mode 'Complete' +$ helm s[tab] +search (search for a keyword in charts) show (show information of a chart) status (displays the status of the named release) + +# With descriptions and Mode 'MenuComplete' The description of the current selected value will be displayed below the suggestions. +$ helm s[tab] +search show status + +search for a keyword in charts + +# Without descriptions +$ helm s[tab] +search show status +``` + +### Limitations + +* Custom completions implemented in bash scripting (legacy) are not supported and will be ignored for `powershell` (including the use of the `BashCompCustom` flag annotation). + * You should instead use `ValidArgsFunction` and `RegisterFlagCompletionFunc()` which are portable to the different shells (`bash`, `zsh`, `fish`, `powershell`). +* The function `MarkFlagCustom()` is not supported and will be ignored for `powershell`. + * You should instead use `RegisterFlagCompletionFunc()`. +* The following flag completion annotations are not supported and will be ignored for `powershell`: + * `BashCompFilenameExt` (filtering by file extension) + * `BashCompSubdirsInDir` (filtering by directory) +* The functions corresponding to the above annotations are consequently not supported and will be ignored for `powershell`: + * `MarkFlagFilename()` and `MarkPersistentFlagFilename()` (filtering by file extension) + * `MarkFlagDirname()` and `MarkPersistentFlagDirname()` (filtering by directory) +* Similarly, the following completion directives are not supported and will be ignored for `powershell`: + * `ShellCompDirectiveFilterFileExt` (filtering by file extension) + * `ShellCompDirectiveFilterDirs` (filtering by directory) diff --git a/vendor/github.com/spf13/cobra/user_guide.md b/vendor/github.com/spf13/cobra/user_guide.md new file mode 100644 index 0000000..311abce --- /dev/null +++ b/vendor/github.com/spf13/cobra/user_guide.md @@ -0,0 +1,637 @@ +# User Guide + +While you are welcome to provide your own organization, typically a Cobra-based +application will follow the following organizational structure: + +``` + ▾ appName/ + ▾ cmd/ + add.go + your.go + commands.go + here.go + main.go +``` + +In a Cobra app, typically the main.go file is very bare. It serves one purpose: initializing Cobra. + +```go +package main + +import ( + "{pathToYourApp}/cmd" +) + +func main() { + cmd.Execute() +} +``` + +## Using the Cobra Generator + +Cobra provides its own program that will create your application and add any +commands you want. It's the easiest way to incorporate Cobra into your application. + +[Here](https://github.com/spf13/cobra/blob/master/cobra/README.md) you can find more information about it. + +## Using the Cobra Library + +To manually implement Cobra you need to create a bare main.go file and a rootCmd file. +You will optionally provide additional commands as you see fit. + +### Create rootCmd + +Cobra doesn't require any special constructors. Simply create your commands. + +Ideally you place this in app/cmd/root.go: + +```go +var rootCmd = &cobra.Command{ + Use: "hugo", + Short: "Hugo is a very fast static site generator", + Long: `A Fast and Flexible Static Site Generator built with + love by spf13 and friends in Go. + Complete documentation is available at http://hugo.spf13.com`, + Run: func(cmd *cobra.Command, args []string) { + // Do Stuff Here + }, +} + +func Execute() { + if err := rootCmd.Execute(); err != nil { + fmt.Fprintln(os.Stderr, err) + os.Exit(1) + } +} +``` + +You will additionally define flags and handle configuration in your init() function. + +For example cmd/root.go: + +```go +package cmd + +import ( + "fmt" + "os" + + "github.com/spf13/cobra" + "github.com/spf13/viper" +) + +var ( + // Used for flags. + cfgFile string + userLicense string + + rootCmd = &cobra.Command{ + Use: "cobra", + Short: "A generator for Cobra based Applications", + Long: `Cobra is a CLI library for Go that empowers applications. +This application is a tool to generate the needed files +to quickly create a Cobra application.`, + } +) + +// Execute executes the root command. +func Execute() error { + return rootCmd.Execute() +} + +func init() { + cobra.OnInitialize(initConfig) + + rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.cobra.yaml)") + rootCmd.PersistentFlags().StringP("author", "a", "YOUR NAME", "author name for copyright attribution") + rootCmd.PersistentFlags().StringVarP(&userLicense, "license", "l", "", "name of license for the project") + rootCmd.PersistentFlags().Bool("viper", true, "use Viper for configuration") + viper.BindPFlag("author", rootCmd.PersistentFlags().Lookup("author")) + viper.BindPFlag("useViper", rootCmd.PersistentFlags().Lookup("viper")) + viper.SetDefault("author", "NAME HERE ") + viper.SetDefault("license", "apache") + + rootCmd.AddCommand(addCmd) + rootCmd.AddCommand(initCmd) +} + +func initConfig() { + if cfgFile != "" { + // Use config file from the flag. + viper.SetConfigFile(cfgFile) + } else { + // Find home directory. + home, err := os.UserHomeDir() + cobra.CheckErr(err) + + // Search config in home directory with name ".cobra" (without extension). + viper.AddConfigPath(home) + viper.SetConfigType("yaml") + viper.SetConfigName(".cobra") + } + + viper.AutomaticEnv() + + if err := viper.ReadInConfig(); err == nil { + fmt.Println("Using config file:", viper.ConfigFileUsed()) + } +} +``` + +### Create your main.go + +With the root command you need to have your main function execute it. +Execute should be run on the root for clarity, though it can be called on any command. + +In a Cobra app, typically the main.go file is very bare. It serves one purpose: to initialize Cobra. + +```go +package main + +import ( + "{pathToYourApp}/cmd" +) + +func main() { + cmd.Execute() +} +``` + +### Create additional commands + +Additional commands can be defined and typically are each given their own file +inside of the cmd/ directory. + +If you wanted to create a version command you would create cmd/version.go and +populate it with the following: + +```go +package cmd + +import ( + "fmt" + + "github.com/spf13/cobra" +) + +func init() { + rootCmd.AddCommand(versionCmd) +} + +var versionCmd = &cobra.Command{ + Use: "version", + Short: "Print the version number of Hugo", + Long: `All software has versions. This is Hugo's`, + Run: func(cmd *cobra.Command, args []string) { + fmt.Println("Hugo Static Site Generator v0.9 -- HEAD") + }, +} +``` + +### Returning and handling errors + +If you wish to return an error to the caller of a command, `RunE` can be used. + +```go +package cmd + +import ( + "fmt" + + "github.com/spf13/cobra" +) + +func init() { + rootCmd.AddCommand(tryCmd) +} + +var tryCmd = &cobra.Command{ + Use: "try", + Short: "Try and possibly fail at something", + RunE: func(cmd *cobra.Command, args []string) error { + if err := someFunc(); err != nil { + return err + } + return nil + }, +} +``` + +The error can then be caught at the execute function call. + +## Working with Flags + +Flags provide modifiers to control how the action command operates. + +### Assign flags to a command + +Since the flags are defined and used in different locations, we need to +define a variable outside with the correct scope to assign the flag to +work with. + +```go +var Verbose bool +var Source string +``` + +There are two different approaches to assign a flag. + +### Persistent Flags + +A flag can be 'persistent', meaning that this flag will be available to the +command it's assigned to as well as every command under that command. For +global flags, assign a flag as a persistent flag on the root. + +```go +rootCmd.PersistentFlags().BoolVarP(&Verbose, "verbose", "v", false, "verbose output") +``` + +### Local Flags + +A flag can also be assigned locally, which will only apply to that specific command. + +```go +localCmd.Flags().StringVarP(&Source, "source", "s", "", "Source directory to read from") +``` + +### Local Flag on Parent Commands + +By default, Cobra only parses local flags on the target command, and any local flags on +parent commands are ignored. By enabling `Command.TraverseChildren`, Cobra will +parse local flags on each command before executing the target command. + +```go +command := cobra.Command{ + Use: "print [OPTIONS] [COMMANDS]", + TraverseChildren: true, +} +``` + +### Bind Flags with Config + +You can also bind your flags with [viper](https://github.com/spf13/viper): +```go +var author string + +func init() { + rootCmd.PersistentFlags().StringVar(&author, "author", "YOUR NAME", "Author name for copyright attribution") + viper.BindPFlag("author", rootCmd.PersistentFlags().Lookup("author")) +} +``` + +In this example, the persistent flag `author` is bound with `viper`. +**Note**: the variable `author` will not be set to the value from config, +when the `--author` flag is not provided by user. + +More in [viper documentation](https://github.com/spf13/viper#working-with-flags). + +### Required flags + +Flags are optional by default. If instead you wish your command to report an error +when a flag has not been set, mark it as required: +```go +rootCmd.Flags().StringVarP(&Region, "region", "r", "", "AWS region (required)") +rootCmd.MarkFlagRequired("region") +``` + +Or, for persistent flags: +```go +rootCmd.PersistentFlags().StringVarP(&Region, "region", "r", "", "AWS region (required)") +rootCmd.MarkPersistentFlagRequired("region") +``` + +## Positional and Custom Arguments + +Validation of positional arguments can be specified using the `Args` field +of `Command`. + +The following validators are built in: + +- `NoArgs` - the command will report an error if there are any positional args. +- `ArbitraryArgs` - the command will accept any args. +- `OnlyValidArgs` - the command will report an error if there are any positional args that are not in the `ValidArgs` field of `Command`. +- `MinimumNArgs(int)` - the command will report an error if there are not at least N positional args. +- `MaximumNArgs(int)` - the command will report an error if there are more than N positional args. +- `ExactArgs(int)` - the command will report an error if there are not exactly N positional args. +- `ExactValidArgs(int)` - the command will report an error if there are not exactly N positional args OR if there are any positional args that are not in the `ValidArgs` field of `Command` +- `RangeArgs(min, max)` - the command will report an error if the number of args is not between the minimum and maximum number of expected args. + +An example of setting the custom validator: + +```go +var cmd = &cobra.Command{ + Short: "hello", + Args: func(cmd *cobra.Command, args []string) error { + if len(args) < 1 { + return errors.New("requires a color argument") + } + if myapp.IsValidColor(args[0]) { + return nil + } + return fmt.Errorf("invalid color specified: %s", args[0]) + }, + Run: func(cmd *cobra.Command, args []string) { + fmt.Println("Hello, World!") + }, +} +``` + +## Example + +In the example below, we have defined three commands. Two are at the top level +and one (cmdTimes) is a child of one of the top commands. In this case the root +is not executable, meaning that a subcommand is required. This is accomplished +by not providing a 'Run' for the 'rootCmd'. + +We have only defined one flag for a single command. + +More documentation about flags is available at https://github.com/spf13/pflag + +```go +package main + +import ( + "fmt" + "strings" + + "github.com/spf13/cobra" +) + +func main() { + var echoTimes int + + var cmdPrint = &cobra.Command{ + Use: "print [string to print]", + Short: "Print anything to the screen", + Long: `print is for printing anything back to the screen. +For many years people have printed back to the screen.`, + Args: cobra.MinimumNArgs(1), + Run: func(cmd *cobra.Command, args []string) { + fmt.Println("Print: " + strings.Join(args, " ")) + }, + } + + var cmdEcho = &cobra.Command{ + Use: "echo [string to echo]", + Short: "Echo anything to the screen", + Long: `echo is for echoing anything back. +Echo works a lot like print, except it has a child command.`, + Args: cobra.MinimumNArgs(1), + Run: func(cmd *cobra.Command, args []string) { + fmt.Println("Echo: " + strings.Join(args, " ")) + }, + } + + var cmdTimes = &cobra.Command{ + Use: "times [string to echo]", + Short: "Echo anything to the screen more times", + Long: `echo things multiple times back to the user by providing +a count and a string.`, + Args: cobra.MinimumNArgs(1), + Run: func(cmd *cobra.Command, args []string) { + for i := 0; i < echoTimes; i++ { + fmt.Println("Echo: " + strings.Join(args, " ")) + } + }, + } + + cmdTimes.Flags().IntVarP(&echoTimes, "times", "t", 1, "times to echo the input") + + var rootCmd = &cobra.Command{Use: "app"} + rootCmd.AddCommand(cmdPrint, cmdEcho) + cmdEcho.AddCommand(cmdTimes) + rootCmd.Execute() +} +``` + +For a more complete example of a larger application, please checkout [Hugo](http://gohugo.io/). + +## Help Command + +Cobra automatically adds a help command to your application when you have subcommands. +This will be called when a user runs 'app help'. Additionally, help will also +support all other commands as input. Say, for instance, you have a command called +'create' without any additional configuration; Cobra will work when 'app help +create' is called. Every command will automatically have the '--help' flag added. + +### Example + +The following output is automatically generated by Cobra. Nothing beyond the +command and flag definitions are needed. + + $ cobra help + + Cobra is a CLI library for Go that empowers applications. + This application is a tool to generate the needed files + to quickly create a Cobra application. + + Usage: + cobra [command] + + Available Commands: + add Add a command to a Cobra Application + help Help about any command + init Initialize a Cobra Application + + Flags: + -a, --author string author name for copyright attribution (default "YOUR NAME") + --config string config file (default is $HOME/.cobra.yaml) + -h, --help help for cobra + -l, --license string name of license for the project + --viper use Viper for configuration (default true) + + Use "cobra [command] --help" for more information about a command. + + +Help is just a command like any other. There is no special logic or behavior +around it. In fact, you can provide your own if you want. + +### Defining your own help + +You can provide your own Help command or your own template for the default command to use +with following functions: + +```go +cmd.SetHelpCommand(cmd *Command) +cmd.SetHelpFunc(f func(*Command, []string)) +cmd.SetHelpTemplate(s string) +``` + +The latter two will also apply to any children commands. + +## Usage Message + +When the user provides an invalid flag or invalid command, Cobra responds by +showing the user the 'usage'. + +### Example +You may recognize this from the help above. That's because the default help +embeds the usage as part of its output. + + $ cobra --invalid + Error: unknown flag: --invalid + Usage: + cobra [command] + + Available Commands: + add Add a command to a Cobra Application + help Help about any command + init Initialize a Cobra Application + + Flags: + -a, --author string author name for copyright attribution (default "YOUR NAME") + --config string config file (default is $HOME/.cobra.yaml) + -h, --help help for cobra + -l, --license string name of license for the project + --viper use Viper for configuration (default true) + + Use "cobra [command] --help" for more information about a command. + +### Defining your own usage +You can provide your own usage function or template for Cobra to use. +Like help, the function and template are overridable through public methods: + +```go +cmd.SetUsageFunc(f func(*Command) error) +cmd.SetUsageTemplate(s string) +``` + +## Version Flag + +Cobra adds a top-level '--version' flag if the Version field is set on the root command. +Running an application with the '--version' flag will print the version to stdout using +the version template. The template can be customized using the +`cmd.SetVersionTemplate(s string)` function. + +## PreRun and PostRun Hooks + +It is possible to run functions before or after the main `Run` function of your command. The `PersistentPreRun` and `PreRun` functions will be executed before `Run`. `PersistentPostRun` and `PostRun` will be executed after `Run`. The `Persistent*Run` functions will be inherited by children if they do not declare their own. These functions are run in the following order: + +- `PersistentPreRun` +- `PreRun` +- `Run` +- `PostRun` +- `PersistentPostRun` + +An example of two commands which use all of these features is below. When the subcommand is executed, it will run the root command's `PersistentPreRun` but not the root command's `PersistentPostRun`: + +```go +package main + +import ( + "fmt" + + "github.com/spf13/cobra" +) + +func main() { + + var rootCmd = &cobra.Command{ + Use: "root [sub]", + Short: "My root command", + PersistentPreRun: func(cmd *cobra.Command, args []string) { + fmt.Printf("Inside rootCmd PersistentPreRun with args: %v\n", args) + }, + PreRun: func(cmd *cobra.Command, args []string) { + fmt.Printf("Inside rootCmd PreRun with args: %v\n", args) + }, + Run: func(cmd *cobra.Command, args []string) { + fmt.Printf("Inside rootCmd Run with args: %v\n", args) + }, + PostRun: func(cmd *cobra.Command, args []string) { + fmt.Printf("Inside rootCmd PostRun with args: %v\n", args) + }, + PersistentPostRun: func(cmd *cobra.Command, args []string) { + fmt.Printf("Inside rootCmd PersistentPostRun with args: %v\n", args) + }, + } + + var subCmd = &cobra.Command{ + Use: "sub [no options!]", + Short: "My subcommand", + PreRun: func(cmd *cobra.Command, args []string) { + fmt.Printf("Inside subCmd PreRun with args: %v\n", args) + }, + Run: func(cmd *cobra.Command, args []string) { + fmt.Printf("Inside subCmd Run with args: %v\n", args) + }, + PostRun: func(cmd *cobra.Command, args []string) { + fmt.Printf("Inside subCmd PostRun with args: %v\n", args) + }, + PersistentPostRun: func(cmd *cobra.Command, args []string) { + fmt.Printf("Inside subCmd PersistentPostRun with args: %v\n", args) + }, + } + + rootCmd.AddCommand(subCmd) + + rootCmd.SetArgs([]string{""}) + rootCmd.Execute() + fmt.Println() + rootCmd.SetArgs([]string{"sub", "arg1", "arg2"}) + rootCmd.Execute() +} +``` + +Output: +``` +Inside rootCmd PersistentPreRun with args: [] +Inside rootCmd PreRun with args: [] +Inside rootCmd Run with args: [] +Inside rootCmd PostRun with args: [] +Inside rootCmd PersistentPostRun with args: [] + +Inside rootCmd PersistentPreRun with args: [arg1 arg2] +Inside subCmd PreRun with args: [arg1 arg2] +Inside subCmd Run with args: [arg1 arg2] +Inside subCmd PostRun with args: [arg1 arg2] +Inside subCmd PersistentPostRun with args: [arg1 arg2] +``` + +## Suggestions when "unknown command" happens + +Cobra will print automatic suggestions when "unknown command" errors happen. This allows Cobra to behave similarly to the `git` command when a typo happens. For example: + +``` +$ hugo srever +Error: unknown command "srever" for "hugo" + +Did you mean this? + server + +Run 'hugo --help' for usage. +``` + +Suggestions are automatic based on every subcommand registered and use an implementation of [Levenshtein distance](http://en.wikipedia.org/wiki/Levenshtein_distance). Every registered command that matches a minimum distance of 2 (ignoring case) will be displayed as a suggestion. + +If you need to disable suggestions or tweak the string distance in your command, use: + +```go +command.DisableSuggestions = true +``` + +or + +```go +command.SuggestionsMinimumDistance = 1 +``` + +You can also explicitly set names for which a given command will be suggested using the `SuggestFor` attribute. This allows suggestions for strings that are not close in terms of string distance, but makes sense in your set of commands and for some which you don't want aliases. Example: + +``` +$ kubectl remove +Error: unknown command "remove" for "kubectl" + +Did you mean this? + delete + +Run 'kubectl help' for usage. +``` + +## Generating documentation for your command + +Cobra can generate documentation based on subcommands, flags, etc. Read more about it in the [docs generation documentation](doc/README.md). + +## Generating shell completions + +Cobra can generate a shell-completion file for the following shells: bash, zsh, fish, PowerShell. If you add more information to your commands, these completions can be amazingly powerful and flexible. Read more about it in [Shell Completions](shell_completions.md). diff --git a/vendor/github.com/spf13/cobra/zsh_completions.go b/vendor/github.com/spf13/cobra/zsh_completions.go index 1275548..1afec30 100644 --- a/vendor/github.com/spf13/cobra/zsh_completions.go +++ b/vendor/github.com/spf13/cobra/zsh_completions.go @@ -1,336 +1,258 @@ package cobra import ( - "encoding/json" + "bytes" "fmt" "io" "os" - "sort" - "strings" - "text/template" - - "github.com/spf13/pflag" -) - -const ( - zshCompArgumentAnnotation = "cobra_annotations_zsh_completion_argument_annotation" - zshCompArgumentFilenameComp = "cobra_annotations_zsh_completion_argument_file_completion" - zshCompArgumentWordComp = "cobra_annotations_zsh_completion_argument_word_completion" - zshCompDirname = "cobra_annotations_zsh_dirname" -) - -var ( - zshCompFuncMap = template.FuncMap{ - "genZshFuncName": zshCompGenFuncName, - "extractFlags": zshCompExtractFlag, - "genFlagEntryForZshArguments": zshCompGenFlagEntryForArguments, - "extractArgsCompletions": zshCompExtractArgumentCompletionHintsForRendering, - } - zshCompletionText = ` -{{/* should accept Command (that contains subcommands) as parameter */}} -{{define "argumentsC" -}} -{{ $cmdPath := genZshFuncName .}} -function {{$cmdPath}} { - local -a commands - - _arguments -C \{{- range extractFlags .}} - {{genFlagEntryForZshArguments .}} \{{- end}} - "1: :->cmnds" \ - "*::arg:->args" - - case $state in - cmnds) - commands=({{range .Commands}}{{if not .Hidden}} - "{{.Name}}:{{.Short}}"{{end}}{{end}} - ) - _describe "command" commands - ;; - esac - - case "$words[1]" in {{- range .Commands}}{{if not .Hidden}} - {{.Name}}) - {{$cmdPath}}_{{.Name}} - ;;{{end}}{{end}} - esac -} -{{range .Commands}}{{if not .Hidden}} -{{template "selectCmdTemplate" .}} -{{- end}}{{end}} -{{- end}} - -{{/* should accept Command without subcommands as parameter */}} -{{define "arguments" -}} -function {{genZshFuncName .}} { -{{" _arguments"}}{{range extractFlags .}} \ - {{genFlagEntryForZshArguments . -}} -{{end}}{{range extractArgsCompletions .}} \ - {{.}}{{end}} -} -{{end}} - -{{/* dispatcher for commands with or without subcommands */}} -{{define "selectCmdTemplate" -}} -{{if .Hidden}}{{/* ignore hidden*/}}{{else -}} -{{if .Commands}}{{template "argumentsC" .}}{{else}}{{template "arguments" .}}{{end}} -{{- end}} -{{- end}} - -{{/* template entry point */}} -{{define "Main" -}} -#compdef _{{.Name}} {{.Name}} - -{{template "selectCmdTemplate" .}} -{{end}} -` ) -// zshCompArgsAnnotation is used to encode/decode zsh completion for -// arguments to/from Command.Annotations. -type zshCompArgsAnnotation map[int]zshCompArgHint - -type zshCompArgHint struct { - // Indicates the type of the completion to use. One of: - // zshCompArgumentFilenameComp or zshCompArgumentWordComp - Tipe string `json:"type"` - - // A value for the type above (globs for file completion or words) - Options []string `json:"options"` -} - -// GenZshCompletionFile generates zsh completion file. +// GenZshCompletionFile generates zsh completion file including descriptions. func (c *Command) GenZshCompletionFile(filename string) error { - outFile, err := os.Create(filename) - if err != nil { - return err - } - defer outFile.Close() - - return c.GenZshCompletion(outFile) + return c.genZshCompletionFile(filename, true) } -// GenZshCompletion generates a zsh completion file and writes to the passed -// writer. The completion always run on the root command regardless of the -// command it was called from. +// GenZshCompletion generates zsh completion file including descriptions +// and writes it to the passed writer. func (c *Command) GenZshCompletion(w io.Writer) error { - tmpl, err := template.New("Main").Funcs(zshCompFuncMap).Parse(zshCompletionText) - if err != nil { - return fmt.Errorf("error creating zsh completion template: %v", err) - } - return tmpl.Execute(w, c.Root()) + return c.genZshCompletion(w, true) } -// MarkZshCompPositionalArgumentFile marks the specified argument (first -// argument is 1) as completed by file selection. patterns (e.g. "*.txt") are -// optional - if not provided the completion will search for all files. -func (c *Command) MarkZshCompPositionalArgumentFile(argPosition int, patterns ...string) error { - if argPosition < 1 { - return fmt.Errorf("Invalid argument position (%d)", argPosition) - } - annotation, err := c.zshCompGetArgsAnnotations() - if err != nil { - return err - } - if c.zshcompArgsAnnotationnIsDuplicatePosition(annotation, argPosition) { - return fmt.Errorf("Duplicate annotation for positional argument at index %d", argPosition) - } - annotation[argPosition] = zshCompArgHint{ - Tipe: zshCompArgumentFilenameComp, - Options: patterns, - } - return c.zshCompSetArgsAnnotations(annotation) +// GenZshCompletionFileNoDesc generates zsh completion file without descriptions. +func (c *Command) GenZshCompletionFileNoDesc(filename string) error { + return c.genZshCompletionFile(filename, false) } -// MarkZshCompPositionalArgumentWords marks the specified positional argument -// (first argument is 1) as completed by the provided words. At east one word -// must be provided, spaces within words will be offered completion with -// "word\ word". -func (c *Command) MarkZshCompPositionalArgumentWords(argPosition int, words ...string) error { - if argPosition < 1 { - return fmt.Errorf("Invalid argument position (%d)", argPosition) - } - if len(words) == 0 { - return fmt.Errorf("Trying to set empty word list for positional argument %d", argPosition) - } - annotation, err := c.zshCompGetArgsAnnotations() - if err != nil { - return err - } - if c.zshcompArgsAnnotationnIsDuplicatePosition(annotation, argPosition) { - return fmt.Errorf("Duplicate annotation for positional argument at index %d", argPosition) - } - annotation[argPosition] = zshCompArgHint{ - Tipe: zshCompArgumentWordComp, - Options: words, - } - return c.zshCompSetArgsAnnotations(annotation) +// GenZshCompletionNoDesc generates zsh completion file without descriptions +// and writes it to the passed writer. +func (c *Command) GenZshCompletionNoDesc(w io.Writer) error { + return c.genZshCompletion(w, false) } -func zshCompExtractArgumentCompletionHintsForRendering(c *Command) ([]string, error) { - var result []string - annotation, err := c.zshCompGetArgsAnnotations() - if err != nil { - return nil, err - } - for k, v := range annotation { - s, err := zshCompRenderZshCompArgHint(k, v) - if err != nil { - return nil, err - } - result = append(result, s) - } - if len(c.ValidArgs) > 0 { - if _, positionOneExists := annotation[1]; !positionOneExists { - s, err := zshCompRenderZshCompArgHint(1, zshCompArgHint{ - Tipe: zshCompArgumentWordComp, - Options: c.ValidArgs, - }) - if err != nil { - return nil, err - } - result = append(result, s) - } - } - sort.Strings(result) - return result, nil -} - -func zshCompRenderZshCompArgHint(i int, z zshCompArgHint) (string, error) { - switch t := z.Tipe; t { - case zshCompArgumentFilenameComp: - var globs []string - for _, g := range z.Options { - globs = append(globs, fmt.Sprintf(`-g "%s"`, g)) - } - return fmt.Sprintf(`'%d: :_files %s'`, i, strings.Join(globs, " ")), nil - case zshCompArgumentWordComp: - var words []string - for _, w := range z.Options { - words = append(words, fmt.Sprintf("%q", w)) - } - return fmt.Sprintf(`'%d: :(%s)'`, i, strings.Join(words, " ")), nil - default: - return "", fmt.Errorf("Invalid zsh argument completion annotation: %s", t) - } -} - -func (c *Command) zshcompArgsAnnotationnIsDuplicatePosition(annotation zshCompArgsAnnotation, position int) bool { - _, dup := annotation[position] - return dup -} - -func (c *Command) zshCompGetArgsAnnotations() (zshCompArgsAnnotation, error) { - annotation := make(zshCompArgsAnnotation) - annotationString, ok := c.Annotations[zshCompArgumentAnnotation] - if !ok { - return annotation, nil - } - err := json.Unmarshal([]byte(annotationString), &annotation) - if err != nil { - return annotation, fmt.Errorf("Error unmarshaling zsh argument annotation: %v", err) - } - return annotation, nil -} - -func (c *Command) zshCompSetArgsAnnotations(annotation zshCompArgsAnnotation) error { - jsn, err := json.Marshal(annotation) - if err != nil { - return fmt.Errorf("Error marshaling zsh argument annotation: %v", err) - } - if c.Annotations == nil { - c.Annotations = make(map[string]string) - } - c.Annotations[zshCompArgumentAnnotation] = string(jsn) +// MarkZshCompPositionalArgumentFile only worked for zsh and its behavior was +// not consistent with Bash completion. It has therefore been disabled. +// Instead, when no other completion is specified, file completion is done by +// default for every argument. One can disable file completion on a per-argument +// basis by using ValidArgsFunction and ShellCompDirectiveNoFileComp. +// To achieve file extension filtering, one can use ValidArgsFunction and +// ShellCompDirectiveFilterFileExt. +// +// Deprecated +func (c *Command) MarkZshCompPositionalArgumentFile(argPosition int, patterns ...string) error { return nil } -func zshCompGenFuncName(c *Command) string { - if c.HasParent() { - return zshCompGenFuncName(c.Parent()) + "_" + c.Name() - } - return "_" + c.Name() -} - -func zshCompExtractFlag(c *Command) []*pflag.Flag { - var flags []*pflag.Flag - c.LocalFlags().VisitAll(func(f *pflag.Flag) { - if !f.Hidden { - flags = append(flags, f) - } - }) - c.InheritedFlags().VisitAll(func(f *pflag.Flag) { - if !f.Hidden { - flags = append(flags, f) - } - }) - return flags -} - -// zshCompGenFlagEntryForArguments returns an entry that matches _arguments -// zsh-completion parameters. It's too complicated to generate in a template. -func zshCompGenFlagEntryForArguments(f *pflag.Flag) string { - if f.Name == "" || f.Shorthand == "" { - return zshCompGenFlagEntryForSingleOptionFlag(f) - } - return zshCompGenFlagEntryForMultiOptionFlag(f) +// MarkZshCompPositionalArgumentWords only worked for zsh. It has therefore +// been disabled. +// To achieve the same behavior across all shells, one can use +// ValidArgs (for the first argument only) or ValidArgsFunction for +// any argument (can include the first one also). +// +// Deprecated +func (c *Command) MarkZshCompPositionalArgumentWords(argPosition int, words ...string) error { + return nil } -func zshCompGenFlagEntryForSingleOptionFlag(f *pflag.Flag) string { - var option, multiMark, extras string - - if zshCompFlagCouldBeSpecifiedMoreThenOnce(f) { - multiMark = "*" - } - - option = "--" + f.Name - if option == "--" { - option = "-" + f.Shorthand +func (c *Command) genZshCompletionFile(filename string, includeDesc bool) error { + outFile, err := os.Create(filename) + if err != nil { + return err } - extras = zshCompGenFlagEntryExtras(f) + defer outFile.Close() - return fmt.Sprintf(`'%s%s[%s]%s'`, multiMark, option, zshCompQuoteFlagDescription(f.Usage), extras) + return c.genZshCompletion(outFile, includeDesc) } -func zshCompGenFlagEntryForMultiOptionFlag(f *pflag.Flag) string { - var options, parenMultiMark, curlyMultiMark, extras string - - if zshCompFlagCouldBeSpecifiedMoreThenOnce(f) { - parenMultiMark = "*" - curlyMultiMark = "\\*" - } - - options = fmt.Sprintf(`'(%s-%s %s--%s)'{%s-%s,%s--%s}`, - parenMultiMark, f.Shorthand, parenMultiMark, f.Name, curlyMultiMark, f.Shorthand, curlyMultiMark, f.Name) - extras = zshCompGenFlagEntryExtras(f) - - return fmt.Sprintf(`%s'[%s]%s'`, options, zshCompQuoteFlagDescription(f.Usage), extras) +func (c *Command) genZshCompletion(w io.Writer, includeDesc bool) error { + buf := new(bytes.Buffer) + genZshComp(buf, c.Name(), includeDesc) + _, err := buf.WriteTo(w) + return err } -func zshCompGenFlagEntryExtras(f *pflag.Flag) string { - if f.NoOptDefVal != "" { - return "" +func genZshComp(buf io.StringWriter, name string, includeDesc bool) { + compCmd := ShellCompRequestCmd + if !includeDesc { + compCmd = ShellCompNoDescRequestCmd } + WriteStringAndCheck(buf, fmt.Sprintf(`#compdef _%[1]s %[1]s - extras := ":" // allow options for flag (even without assistance) - for key, values := range f.Annotations { - switch key { - case zshCompDirname: - extras = fmt.Sprintf(":filename:_files -g %q", values[0]) - case BashCompFilenameExt: - extras = ":filename:_files" - for _, pattern := range values { - extras = extras + fmt.Sprintf(` -g "%s"`, pattern) - } - } - } +# zsh completion for %-36[1]s -*- shell-script -*- - return extras +__%[1]s_debug() +{ + local file="$BASH_COMP_DEBUG_FILE" + if [[ -n ${file} ]]; then + echo "$*" >> "${file}" + fi } -func zshCompFlagCouldBeSpecifiedMoreThenOnce(f *pflag.Flag) bool { - return strings.Contains(f.Value.Type(), "Slice") || - strings.Contains(f.Value.Type(), "Array") +_%[1]s() +{ + local shellCompDirectiveError=%[3]d + local shellCompDirectiveNoSpace=%[4]d + local shellCompDirectiveNoFileComp=%[5]d + local shellCompDirectiveFilterFileExt=%[6]d + local shellCompDirectiveFilterDirs=%[7]d + + local lastParam lastChar flagPrefix requestComp out directive comp lastComp noSpace + local -a completions + + __%[1]s_debug "\n========= starting completion logic ==========" + __%[1]s_debug "CURRENT: ${CURRENT}, words[*]: ${words[*]}" + + # The user could have moved the cursor backwards on the command-line. + # We need to trigger completion from the $CURRENT location, so we need + # to truncate the command-line ($words) up to the $CURRENT location. + # (We cannot use $CURSOR as its value does not work when a command is an alias.) + words=("${=words[1,CURRENT]}") + __%[1]s_debug "Truncated words[*]: ${words[*]}," + + lastParam=${words[-1]} + lastChar=${lastParam[-1]} + __%[1]s_debug "lastParam: ${lastParam}, lastChar: ${lastChar}" + + # For zsh, when completing a flag with an = (e.g., %[1]s -n=) + # completions must be prefixed with the flag + setopt local_options BASH_REMATCH + if [[ "${lastParam}" =~ '-.*=' ]]; then + # We are dealing with a flag with an = + flagPrefix="-P ${BASH_REMATCH}" + fi + + # Prepare the command to obtain completions + requestComp="${words[1]} %[2]s ${words[2,-1]}" + if [ "${lastChar}" = "" ]; then + # If the last parameter is complete (there is a space following it) + # We add an extra empty parameter so we can indicate this to the go completion code. + __%[1]s_debug "Adding extra empty parameter" + requestComp="${requestComp} \"\"" + fi + + __%[1]s_debug "About to call: eval ${requestComp}" + + # Use eval to handle any environment variables and such + out=$(eval ${requestComp} 2>/dev/null) + __%[1]s_debug "completion output: ${out}" + + # Extract the directive integer following a : from the last line + local lastLine + while IFS='\n' read -r line; do + lastLine=${line} + done < <(printf "%%s\n" "${out[@]}") + __%[1]s_debug "last line: ${lastLine}" + + if [ "${lastLine[1]}" = : ]; then + directive=${lastLine[2,-1]} + # Remove the directive including the : and the newline + local suffix + (( suffix=${#lastLine}+2)) + out=${out[1,-$suffix]} + else + # There is no directive specified. Leave $out as is. + __%[1]s_debug "No directive found. Setting do default" + directive=0 + fi + + __%[1]s_debug "directive: ${directive}" + __%[1]s_debug "completions: ${out}" + __%[1]s_debug "flagPrefix: ${flagPrefix}" + + if [ $((directive & shellCompDirectiveError)) -ne 0 ]; then + __%[1]s_debug "Completion received error. Ignoring completions." + return + fi + + while IFS='\n' read -r comp; do + if [ -n "$comp" ]; then + # If requested, completions are returned with a description. + # The description is preceded by a TAB character. + # For zsh's _describe, we need to use a : instead of a TAB. + # We first need to escape any : as part of the completion itself. + comp=${comp//:/\\:} + + local tab=$(printf '\t') + comp=${comp//$tab/:} + + __%[1]s_debug "Adding completion: ${comp}" + completions+=${comp} + lastComp=$comp + fi + done < <(printf "%%s\n" "${out[@]}") + + if [ $((directive & shellCompDirectiveNoSpace)) -ne 0 ]; then + __%[1]s_debug "Activating nospace." + noSpace="-S ''" + fi + + if [ $((directive & shellCompDirectiveFilterFileExt)) -ne 0 ]; then + # File extension filtering + local filteringCmd + filteringCmd='_files' + for filter in ${completions[@]}; do + if [ ${filter[1]} != '*' ]; then + # zsh requires a glob pattern to do file filtering + filter="\*.$filter" + fi + filteringCmd+=" -g $filter" + done + filteringCmd+=" ${flagPrefix}" + + __%[1]s_debug "File filtering command: $filteringCmd" + _arguments '*:filename:'"$filteringCmd" + elif [ $((directive & shellCompDirectiveFilterDirs)) -ne 0 ]; then + # File completion for directories only + local subDir + subdir="${completions[1]}" + if [ -n "$subdir" ]; then + __%[1]s_debug "Listing directories in $subdir" + pushd "${subdir}" >/dev/null 2>&1 + else + __%[1]s_debug "Listing directories in ." + fi + + local result + _arguments '*:dirname:_files -/'" ${flagPrefix}" + result=$? + if [ -n "$subdir" ]; then + popd >/dev/null 2>&1 + fi + return $result + else + __%[1]s_debug "Calling _describe" + if eval _describe "completions" completions $flagPrefix $noSpace; then + __%[1]s_debug "_describe found some completions" + + # Return the success of having called _describe + return 0 + else + __%[1]s_debug "_describe did not find completions." + __%[1]s_debug "Checking if we should do file completion." + if [ $((directive & shellCompDirectiveNoFileComp)) -ne 0 ]; then + __%[1]s_debug "deactivating file completion" + + # We must return an error code here to let zsh know that there were no + # completions found by _describe; this is what will trigger other + # matching algorithms to attempt to find completions. + # For example zsh can match letters in the middle of words. + return 1 + else + # Perform file completion + __%[1]s_debug "Activating file completion" + + # We must return the result of this command, so it must be the + # last command, or else we must store its result to return it. + _arguments '*:filename:_files'" ${flagPrefix}" + fi + fi + fi } -func zshCompQuoteFlagDescription(s string) string { - return strings.Replace(s, "'", `'\''`, -1) +# don't run the completion function when being source-ed or eval-ed +if [ "$funcstack[1]" = "_%[1]s" ]; then + _%[1]s +fi +`, name, compCmd, + ShellCompDirectiveError, ShellCompDirectiveNoSpace, ShellCompDirectiveNoFileComp, + ShellCompDirectiveFilterFileExt, ShellCompDirectiveFilterDirs)) } diff --git a/vendor/github.com/spf13/cobra/zsh_completions.md b/vendor/github.com/spf13/cobra/zsh_completions.md index df9c2ea..7cff617 100644 --- a/vendor/github.com/spf13/cobra/zsh_completions.md +++ b/vendor/github.com/spf13/cobra/zsh_completions.md @@ -1,39 +1,48 @@ -## Generating Zsh Completion for your cobra.Command - -Cobra supports native Zsh completion generated from the root `cobra.Command`. -The generated completion script should be put somewhere in your `$fpath` named -`_`. - -### What's Supported - -* Completion for all non-hidden subcommands using their `.Short` description. -* Completion for all non-hidden flags using the following rules: - * Filename completion works by marking the flag with `cmd.MarkFlagFilename...` - family of commands. - * The requirement for argument to the flag is decided by the `.NoOptDefVal` - flag value - if it's empty then completion will expect an argument. - * Flags of one of the various `*Array` and `*Slice` types supports multiple - specifications (with or without argument depending on the specific type). -* Completion of positional arguments using the following rules: - * Argument position for all options below starts at `1`. If argument position - `0` is requested it will raise an error. - * Use `command.MarkZshCompPositionalArgumentFile` to complete filenames. Glob - patterns (e.g. `"*.log"`) are optional - if not specified it will offer to - complete all file types. - * Use `command.MarkZshCompPositionalArgumentWords` to offer specific words for - completion. At least one word is required. - * It's possible to specify completion for some arguments and leave some - unspecified (e.g. offer words for second argument but nothing for first - argument). This will cause no completion for first argument but words - completion for second argument. - * If no argument completion was specified for 1st argument (but optionally was - specified for 2nd) and the command has `ValidArgs` it will be used as - completion options for 1st argument. - * Argument completions only offered for commands with no subcommands. - -### What's not yet Supported - -* Custom completion scripts are not supported yet (We should probably create zsh - specific one, doesn't make sense to re-use the bash one as the functions will - be different). -* Whatever other feature you're looking for and doesn't exist :) +## Generating Zsh Completion For Your cobra.Command + +Please refer to [Shell Completions](shell_completions.md) for details. + +## Zsh completions standardization + +Cobra 1.1 standardized its zsh completion support to align it with its other shell completions. Although the API was kept backwards-compatible, some small changes in behavior were introduced. + +### Deprecation summary + +See further below for more details on these deprecations. + +* `cmd.MarkZshCompPositionalArgumentFile(pos, []string{})` is no longer needed. It is therefore **deprecated** and silently ignored. +* `cmd.MarkZshCompPositionalArgumentFile(pos, glob[])` is **deprecated** and silently ignored. + * Instead use `ValidArgsFunction` with `ShellCompDirectiveFilterFileExt`. +* `cmd.MarkZshCompPositionalArgumentWords()` is **deprecated** and silently ignored. + * Instead use `ValidArgsFunction`. + +### Behavioral changes + +**Noun completion** +|Old behavior|New behavior| +|---|---| +|No file completion by default (opposite of bash)|File completion by default; use `ValidArgsFunction` with `ShellCompDirectiveNoFileComp` to turn off file completion on a per-argument basis| +|Completion of flag names without the `-` prefix having been typed|Flag names are only completed if the user has typed the first `-`| +`cmd.MarkZshCompPositionalArgumentFile(pos, []string{})` used to turn on file completion on a per-argument position basis|File completion for all arguments by default; `cmd.MarkZshCompPositionalArgumentFile()` is **deprecated** and silently ignored| +|`cmd.MarkZshCompPositionalArgumentFile(pos, glob[])` used to turn on file completion **with glob filtering** on a per-argument position basis (zsh-specific)|`cmd.MarkZshCompPositionalArgumentFile()` is **deprecated** and silently ignored; use `ValidArgsFunction` with `ShellCompDirectiveFilterFileExt` for file **extension** filtering (not full glob filtering)| +|`cmd.MarkZshCompPositionalArgumentWords(pos, words[])` used to provide completion choices on a per-argument position basis (zsh-specific)|`cmd.MarkZshCompPositionalArgumentWords()` is **deprecated** and silently ignored; use `ValidArgsFunction` to achieve the same behavior| + +**Flag-value completion** + +|Old behavior|New behavior| +|---|---| +|No file completion by default (opposite of bash)|File completion by default; use `RegisterFlagCompletionFunc()` with `ShellCompDirectiveNoFileComp` to turn off file completion| +|`cmd.MarkFlagFilename(flag, []string{})` and similar used to turn on file completion|File completion by default; `cmd.MarkFlagFilename(flag, []string{})` no longer needed in this context and silently ignored| +|`cmd.MarkFlagFilename(flag, glob[])` used to turn on file completion **with glob filtering** (syntax of `[]string{"*.yaml", "*.yml"}` incompatible with bash)|Will continue to work, however, support for bash syntax is added and should be used instead so as to work for all shells (`[]string{"yaml", "yml"}`)| +|`cmd.MarkFlagDirname(flag)` only completes directories (zsh-specific)|Has been added for all shells| +|Completion of a flag name does not repeat, unless flag is of type `*Array` or `*Slice` (not supported by bash)|Retained for `zsh` and added to `fish`| +|Completion of a flag name does not provide the `=` form (unlike bash)|Retained for `zsh` and added to `fish`| + +**Improvements** + +* Custom completion support (`ValidArgsFunction` and `RegisterFlagCompletionFunc()`) +* File completion by default if no other completions found +* Handling of required flags +* File extension filtering no longer mutually exclusive with bash usage +* Completion of directory names *within* another directory +* Support for `=` form of flags diff --git a/vendor/github.com/spf13/pflag/go.mod b/vendor/github.com/spf13/pflag/go.mod deleted file mode 100644 index b2287ee..0000000 --- a/vendor/github.com/spf13/pflag/go.mod +++ /dev/null @@ -1,3 +0,0 @@ -module github.com/spf13/pflag - -go 1.12 diff --git a/vendor/github.com/spf13/pflag/go.sum b/vendor/github.com/spf13/pflag/go.sum deleted file mode 100644 index e69de29..0000000 diff --git a/vendor/gopkg.in/yaml.v2/.travis.yml b/vendor/gopkg.in/yaml.v2/.travis.yml index 055480b..7348c50 100644 --- a/vendor/gopkg.in/yaml.v2/.travis.yml +++ b/vendor/gopkg.in/yaml.v2/.travis.yml @@ -11,6 +11,7 @@ go: - "1.11.x" - "1.12.x" - "1.13.x" + - "1.14.x" - "tip" go_import_path: gopkg.in/yaml.v2 diff --git a/vendor/gopkg.in/yaml.v2/apic.go b/vendor/gopkg.in/yaml.v2/apic.go index d2c2308..acf7140 100644 --- a/vendor/gopkg.in/yaml.v2/apic.go +++ b/vendor/gopkg.in/yaml.v2/apic.go @@ -79,6 +79,8 @@ func yaml_parser_set_encoding(parser *yaml_parser_t, encoding yaml_encoding_t) { parser.encoding = encoding } +var disableLineWrapping = false + // Create a new emitter object. func yaml_emitter_initialize(emitter *yaml_emitter_t) { *emitter = yaml_emitter_t{ @@ -86,7 +88,9 @@ func yaml_emitter_initialize(emitter *yaml_emitter_t) { raw_buffer: make([]byte, 0, output_raw_buffer_size), states: make([]yaml_emitter_state_t, 0, initial_stack_size), events: make([]yaml_event_t, 0, initial_queue_size), - best_width: -1, + } + if disableLineWrapping { + emitter.best_width = -1 } } diff --git a/vendor/gopkg.in/yaml.v2/go.mod b/vendor/gopkg.in/yaml.v2/go.mod deleted file mode 100644 index 1934e87..0000000 --- a/vendor/gopkg.in/yaml.v2/go.mod +++ /dev/null @@ -1,5 +0,0 @@ -module "gopkg.in/yaml.v2" - -require ( - "gopkg.in/check.v1" v0.0.0-20161208181325-20d25e280405 -) diff --git a/vendor/gopkg.in/yaml.v2/yaml.go b/vendor/gopkg.in/yaml.v2/yaml.go index 89650e2..3081388 100644 --- a/vendor/gopkg.in/yaml.v2/yaml.go +++ b/vendor/gopkg.in/yaml.v2/yaml.go @@ -175,7 +175,7 @@ func unmarshal(in []byte, out interface{}, strict bool) (err error) { // Zero valued structs will be omitted if all their public // fields are zero, unless they implement an IsZero // method (see the IsZeroer interface type), in which -// case the field will be included if that method returns true. +// case the field will be excluded if IsZero returns true. // // flow Marshal using a flow style (useful for structs, // sequences and maps). @@ -464,3 +464,15 @@ func isZero(v reflect.Value) bool { } return false } + +// FutureLineWrap globally disables line wrapping when encoding long strings. +// This is a temporary and thus deprecated method introduced to faciliate +// migration towards v3, which offers more control of line lengths on +// individual encodings, and has a default matching the behavior introduced +// by this function. +// +// The default formatting of v2 was erroneously changed in v2.3.0 and reverted +// in v2.4.0, at which point this function was introduced to help migration. +func FutureLineWrap() { + disableLineWrapping = true +} diff --git a/vendor/modules.txt b/vendor/modules.txt index 1b9ffee..6f9ef30 100644 --- a/vendor/modules.txt +++ b/vendor/modules.txt @@ -1,17 +1,12 @@ # github.com/inconshreveable/mousetrap v1.0.0 -github.com/inconshreveable/mousetrap -# github.com/kr/text v0.2.0 -## explicit -# github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e -## explicit -# github.com/spf13/cobra v1.0.0 ## explicit +github.com/inconshreveable/mousetrap +# github.com/spf13/cobra v1.2.1 +## explicit; go 1.14 github.com/spf13/cobra # github.com/spf13/pflag v1.0.5 -## explicit +## explicit; go 1.12 github.com/spf13/pflag -# gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f -## explicit -# gopkg.in/yaml.v2 v2.3.0 -## explicit +# gopkg.in/yaml.v2 v2.4.0 +## explicit; go 1.15 gopkg.in/yaml.v2