diff options
Diffstat (limited to 'vendor/github.com/urfave')
| -rw-r--r-- | vendor/github.com/urfave/cli/.flake8 | 2 | ||||
| -rw-r--r-- | vendor/github.com/urfave/cli/.gitignore | 2 | ||||
| -rw-r--r-- | vendor/github.com/urfave/cli/.travis.yml | 27 | ||||
| -rw-r--r-- | vendor/github.com/urfave/cli/CHANGELOG.md | 435 | ||||
| -rw-r--r-- | vendor/github.com/urfave/cli/README.md | 1381 | ||||
| -rw-r--r-- | vendor/github.com/urfave/cli/appveyor.yml | 26 | ||||
| -rw-r--r-- | vendor/github.com/urfave/cli/flag-types.json | 93 | ||||
| -rw-r--r-- | vendor/github.com/urfave/cli/generate-flag-types | 255 | ||||
| -rw-r--r-- | vendor/github.com/urfave/cli/runtests | 122 |
9 files changed, 2343 insertions, 0 deletions
diff --git a/vendor/github.com/urfave/cli/.flake8 b/vendor/github.com/urfave/cli/.flake8 new file mode 100644 index 0000000..6deafc2 --- /dev/null +++ b/vendor/github.com/urfave/cli/.flake8 @@ -0,0 +1,2 @@ +[flake8] +max-line-length = 120 diff --git a/vendor/github.com/urfave/cli/.gitignore b/vendor/github.com/urfave/cli/.gitignore new file mode 100644 index 0000000..faf70c4 --- /dev/null +++ b/vendor/github.com/urfave/cli/.gitignore @@ -0,0 +1,2 @@ +*.coverprofile +node_modules/ diff --git a/vendor/github.com/urfave/cli/.travis.yml b/vendor/github.com/urfave/cli/.travis.yml new file mode 100644 index 0000000..cf8d098 --- /dev/null +++ b/vendor/github.com/urfave/cli/.travis.yml @@ -0,0 +1,27 @@ +language: go +sudo: false +dist: trusty +osx_image: xcode8.3 +go: 1.8.x + +os: +- linux +- osx + +cache: + directories: + - node_modules + +before_script: +- go get github.com/urfave/gfmrun/... || true +- go get golang.org/x/tools/cmd/goimports +- if [ ! -f node_modules/.bin/markdown-toc ] ; then + npm install markdown-toc ; + fi + +script: +- ./runtests gen +- ./runtests vet +- ./runtests test +- ./runtests gfmrun +- ./runtests toc diff --git a/vendor/github.com/urfave/cli/CHANGELOG.md b/vendor/github.com/urfave/cli/CHANGELOG.md new file mode 100644 index 0000000..401eae5 --- /dev/null +++ b/vendor/github.com/urfave/cli/CHANGELOG.md @@ -0,0 +1,435 @@ +# Change Log + +**ATTN**: This project uses [semantic versioning](http://semver.org/). + +## [Unreleased] + +## 1.20.0 - 2017-08-10 + +### Fixed + +* `HandleExitCoder` is now correctly iterates over all errors in + a `MultiError`. The exit code is the exit code of the last error or `1` if + there are no `ExitCoder`s in the `MultiError`. +* Fixed YAML file loading on Windows (previously would fail validate the file path) +* Subcommand `Usage`, `Description`, `ArgsUsage`, `OnUsageError` correctly + propogated +* `ErrWriter` is now passed downwards through command structure to avoid the + need to redefine it +* Pass `Command` context into `OnUsageError` rather than parent context so that + all fields are avaiable +* Errors occuring in `Before` funcs are no longer double printed +* Use `UsageText` in the help templates for commands and subcommands if + defined; otherwise build the usage as before (was previously ignoring this + field) +* `IsSet` and `GlobalIsSet` now correctly return whether a flag is set if + a program calls `Set` or `GlobalSet` directly after flag parsing (would + previously only return `true` if the flag was set during parsing) + +### Changed + +* No longer exit the program on command/subcommand error if the error raised is + not an `OsExiter`. This exiting behavior was introduced in 1.19.0, but was + determined to be a regression in functionality. See [the + PR](https://github.com/urfave/cli/pull/595) for discussion. + +### Added + +* `CommandsByName` type was added to make it easy to sort `Command`s by name, + alphabetically +* `altsrc` now handles loading of string and int arrays from TOML +* Support for definition of custom help templates for `App` via + `CustomAppHelpTemplate` +* Support for arbitrary key/value fields on `App` to be used with + `CustomAppHelpTemplate` via `ExtraInfo` +* `HelpFlag`, `VersionFlag`, and `BashCompletionFlag` changed to explictly be + `cli.Flag`s allowing for the use of custom flags satisfying the `cli.Flag` + interface to be used. + + +## [1.19.1] - 2016-11-21 + +### Fixed + +- Fixes regression introduced in 1.19.0 where using an `ActionFunc` as + the `Action` for a command would cause it to error rather than calling the + function. Should not have a affected declarative cases using `func(c + *cli.Context) err)`. +- Shell completion now handles the case where the user specifies + `--generate-bash-completion` immediately after a flag that takes an argument. + Previously it call the application with `--generate-bash-completion` as the + flag value. + +## [1.19.0] - 2016-11-19 +### Added +- `FlagsByName` was added to make it easy to sort flags (e.g. `sort.Sort(cli.FlagsByName(app.Flags))`) +- A `Description` field was added to `App` for a more detailed description of + the application (similar to the existing `Description` field on `Command`) +- Flag type code generation via `go generate` +- Write to stderr and exit 1 if action returns non-nil error +- Added support for TOML to the `altsrc` loader +- `SkipArgReorder` was added to allow users to skip the argument reordering. + This is useful if you want to consider all "flags" after an argument as + arguments rather than flags (the default behavior of the stdlib `flag` + library). This is backported functionality from the [removal of the flag + reordering](https://github.com/urfave/cli/pull/398) in the unreleased version + 2 +- For formatted errors (those implementing `ErrorFormatter`), the errors will + be formatted during output. Compatible with `pkg/errors`. + +### Changed +- Raise minimum tested/supported Go version to 1.2+ + +### Fixed +- Consider empty environment variables as set (previously environment variables + with the equivalent of `""` would be skipped rather than their value used). +- Return an error if the value in a given environment variable cannot be parsed + as the flag type. Previously these errors were silently swallowed. +- Print full error when an invalid flag is specified (which includes the invalid flag) +- `App.Writer` defaults to `stdout` when `nil` +- If no action is specified on a command or app, the help is now printed instead of `panic`ing +- `App.Metadata` is initialized automatically now (previously was `nil` unless initialized) +- Correctly show help message if `-h` is provided to a subcommand +- `context.(Global)IsSet` now respects environment variables. Previously it + would return `false` if a flag was specified in the environment rather than + as an argument +- Removed deprecation warnings to STDERR to avoid them leaking to the end-user +- `altsrc`s import paths were updated to use `gopkg.in/urfave/cli.v1`. This + fixes issues that occurred when `gopkg.in/urfave/cli.v1` was imported as well + as `altsrc` where Go would complain that the types didn't match + +## [1.18.1] - 2016-08-28 +### Fixed +- Removed deprecation warnings to STDERR to avoid them leaking to the end-user (backported) + +## [1.18.0] - 2016-06-27 +### Added +- `./runtests` test runner with coverage tracking by default +- testing on OS X +- testing on Windows +- `UintFlag`, `Uint64Flag`, and `Int64Flag` types and supporting code + +### Changed +- Use spaces for alignment in help/usage output instead of tabs, making the + output alignment consistent regardless of tab width + +### Fixed +- Printing of command aliases in help text +- Printing of visible flags for both struct and struct pointer flags +- Display the `help` subcommand when using `CommandCategories` +- No longer swallows `panic`s that occur within the `Action`s themselves when + detecting the signature of the `Action` field + +## [1.17.1] - 2016-08-28 +### Fixed +- Removed deprecation warnings to STDERR to avoid them leaking to the end-user + +## [1.17.0] - 2016-05-09 +### Added +- Pluggable flag-level help text rendering via `cli.DefaultFlagStringFunc` +- `context.GlobalBoolT` was added as an analogue to `context.GlobalBool` +- Support for hiding commands by setting `Hidden: true` -- this will hide the + commands in help output + +### Changed +- `Float64Flag`, `IntFlag`, and `DurationFlag` default values are no longer + quoted in help text output. +- All flag types now include `(default: {value})` strings following usage when a + default value can be (reasonably) detected. +- `IntSliceFlag` and `StringSliceFlag` usage strings are now more consistent + with non-slice flag types +- Apps now exit with a code of 3 if an unknown subcommand is specified + (previously they printed "No help topic for...", but still exited 0. This + makes it easier to script around apps built using `cli` since they can trust + that a 0 exit code indicated a successful execution. +- cleanups based on [Go Report Card + feedback](https://goreportcard.com/report/github.com/urfave/cli) + +## [1.16.1] - 2016-08-28 +### Fixed +- Removed deprecation warnings to STDERR to avoid them leaking to the end-user + +## [1.16.0] - 2016-05-02 +### Added +- `Hidden` field on all flag struct types to omit from generated help text + +### Changed +- `BashCompletionFlag` (`--enable-bash-completion`) is now omitted from +generated help text via the `Hidden` field + +### Fixed +- handling of error values in `HandleAction` and `HandleExitCoder` + +## [1.15.0] - 2016-04-30 +### Added +- This file! +- Support for placeholders in flag usage strings +- `App.Metadata` map for arbitrary data/state management +- `Set` and `GlobalSet` methods on `*cli.Context` for altering values after +parsing. +- Support for nested lookup of dot-delimited keys in structures loaded from +YAML. + +### Changed +- The `App.Action` and `Command.Action` now prefer a return signature of +`func(*cli.Context) error`, as defined by `cli.ActionFunc`. If a non-nil +`error` is returned, there may be two outcomes: + - If the error fulfills `cli.ExitCoder`, then `os.Exit` will be called + automatically + - Else the error is bubbled up and returned from `App.Run` +- Specifying an `Action` with the legacy return signature of +`func(*cli.Context)` will produce a deprecation message to stderr +- Specifying an `Action` that is not a `func` type will produce a non-zero exit +from `App.Run` +- Specifying an `Action` func that has an invalid (input) signature will +produce a non-zero exit from `App.Run` + +### Deprecated +- <a name="deprecated-cli-app-runandexitonerror"></a> +`cli.App.RunAndExitOnError`, which should now be done by returning an error +that fulfills `cli.ExitCoder` to `cli.App.Run`. +- <a name="deprecated-cli-app-action-signature"></a> the legacy signature for +`cli.App.Action` of `func(*cli.Context)`, which should now have a return +signature of `func(*cli.Context) error`, as defined by `cli.ActionFunc`. + +### Fixed +- Added missing `*cli.Context.GlobalFloat64` method + +## [1.14.0] - 2016-04-03 (backfilled 2016-04-25) +### Added +- Codebeat badge +- Support for categorization via `CategorizedHelp` and `Categories` on app. + +### Changed +- Use `filepath.Base` instead of `path.Base` in `Name` and `HelpName`. + +### Fixed +- Ensure version is not shown in help text when `HideVersion` set. + +## [1.13.0] - 2016-03-06 (backfilled 2016-04-25) +### Added +- YAML file input support. +- `NArg` method on context. + +## [1.12.0] - 2016-02-17 (backfilled 2016-04-25) +### Added +- Custom usage error handling. +- Custom text support in `USAGE` section of help output. +- Improved help messages for empty strings. +- AppVeyor CI configuration. + +### Changed +- Removed `panic` from default help printer func. +- De-duping and optimizations. + +### Fixed +- Correctly handle `Before`/`After` at command level when no subcommands. +- Case of literal `-` argument causing flag reordering. +- Environment variable hints on Windows. +- Docs updates. + +## [1.11.1] - 2015-12-21 (backfilled 2016-04-25) +### Changed +- Use `path.Base` in `Name` and `HelpName` +- Export `GetName` on flag types. + +### Fixed +- Flag parsing when skipping is enabled. +- Test output cleanup. +- Move completion check to account for empty input case. + +## [1.11.0] - 2015-11-15 (backfilled 2016-04-25) +### Added +- Destination scan support for flags. +- Testing against `tip` in Travis CI config. + +### Changed +- Go version in Travis CI config. + +### Fixed +- Removed redundant tests. +- Use correct example naming in tests. + +## [1.10.2] - 2015-10-29 (backfilled 2016-04-25) +### Fixed +- Remove unused var in bash completion. + +## [1.10.1] - 2015-10-21 (backfilled 2016-04-25) +### Added +- Coverage and reference logos in README. + +### Fixed +- Use specified values in help and version parsing. +- Only display app version and help message once. + +## [1.10.0] - 2015-10-06 (backfilled 2016-04-25) +### Added +- More tests for existing functionality. +- `ArgsUsage` at app and command level for help text flexibility. + +### Fixed +- Honor `HideHelp` and `HideVersion` in `App.Run`. +- Remove juvenile word from README. + +## [1.9.0] - 2015-09-08 (backfilled 2016-04-25) +### Added +- `FullName` on command with accompanying help output update. +- Set default `$PROG` in bash completion. + +### Changed +- Docs formatting. + +### Fixed +- Removed self-referential imports in tests. + +## [1.8.0] - 2015-06-30 (backfilled 2016-04-25) +### Added +- Support for `Copyright` at app level. +- `Parent` func at context level to walk up context lineage. + +### Fixed +- Global flag processing at top level. + +## [1.7.1] - 2015-06-11 (backfilled 2016-04-25) +### Added +- Aggregate errors from `Before`/`After` funcs. +- Doc comments on flag structs. +- Include non-global flags when checking version and help. +- Travis CI config updates. + +### Fixed +- Ensure slice type flags have non-nil values. +- Collect global flags from the full command hierarchy. +- Docs prose. + +## [1.7.0] - 2015-05-03 (backfilled 2016-04-25) +### Changed +- `HelpPrinter` signature includes output writer. + +### Fixed +- Specify go 1.1+ in docs. +- Set `Writer` when running command as app. + +## [1.6.0] - 2015-03-23 (backfilled 2016-04-25) +### Added +- Multiple author support. +- `NumFlags` at context level. +- `Aliases` at command level. + +### Deprecated +- `ShortName` at command level. + +### Fixed +- Subcommand help output. +- Backward compatible support for deprecated `Author` and `Email` fields. +- Docs regarding `Names`/`Aliases`. + +## [1.5.0] - 2015-02-20 (backfilled 2016-04-25) +### Added +- `After` hook func support at app and command level. + +### Fixed +- Use parsed context when running command as subcommand. +- Docs prose. + +## [1.4.1] - 2015-01-09 (backfilled 2016-04-25) +### Added +- Support for hiding `-h / --help` flags, but not `help` subcommand. +- Stop flag parsing after `--`. + +### Fixed +- Help text for generic flags to specify single value. +- Use double quotes in output for defaults. +- Use `ParseInt` instead of `ParseUint` for int environment var values. +- Use `0` as base when parsing int environment var values. + +## [1.4.0] - 2014-12-12 (backfilled 2016-04-25) +### Added +- Support for environment variable lookup "cascade". +- Support for `Stdout` on app for output redirection. + +### Fixed +- Print command help instead of app help in `ShowCommandHelp`. + +## [1.3.1] - 2014-11-13 (backfilled 2016-04-25) +### Added +- Docs and example code updates. + +### Changed +- Default `-v / --version` flag made optional. + +## [1.3.0] - 2014-08-10 (backfilled 2016-04-25) +### Added +- `FlagNames` at context level. +- Exposed `VersionPrinter` var for more control over version output. +- Zsh completion hook. +- `AUTHOR` section in default app help template. +- Contribution guidelines. +- `DurationFlag` type. + +## [1.2.0] - 2014-08-02 +### Added +- Support for environment variable defaults on flags plus tests. + +## [1.1.0] - 2014-07-15 +### Added +- Bash completion. +- Optional hiding of built-in help command. +- Optional skipping of flag parsing at command level. +- `Author`, `Email`, and `Compiled` metadata on app. +- `Before` hook func support at app and command level. +- `CommandNotFound` func support at app level. +- Command reference available on context. +- `GenericFlag` type. +- `Float64Flag` type. +- `BoolTFlag` type. +- `IsSet` flag helper on context. +- More flag lookup funcs at context level. +- More tests & docs. + +### Changed +- Help template updates to account for presence/absence of flags. +- Separated subcommand help template. +- Exposed `HelpPrinter` var for more control over help output. + +## [1.0.0] - 2013-11-01 +### Added +- `help` flag in default app flag set and each command flag set. +- Custom handling of argument parsing errors. +- Command lookup by name at app level. +- `StringSliceFlag` type and supporting `StringSlice` type. +- `IntSliceFlag` type and supporting `IntSlice` type. +- Slice type flag lookups by name at context level. +- Export of app and command help functions. +- More tests & docs. + +## 0.1.0 - 2013-07-22 +### Added +- Initial implementation. + +[Unreleased]: https://github.com/urfave/cli/compare/v1.18.0...HEAD +[1.18.0]: https://github.com/urfave/cli/compare/v1.17.0...v1.18.0 +[1.17.0]: https://github.com/urfave/cli/compare/v1.16.0...v1.17.0 +[1.16.0]: https://github.com/urfave/cli/compare/v1.15.0...v1.16.0 +[1.15.0]: https://github.com/urfave/cli/compare/v1.14.0...v1.15.0 +[1.14.0]: https://github.com/urfave/cli/compare/v1.13.0...v1.14.0 +[1.13.0]: https://github.com/urfave/cli/compare/v1.12.0...v1.13.0 +[1.12.0]: https://github.com/urfave/cli/compare/v1.11.1...v1.12.0 +[1.11.1]: https://github.com/urfave/cli/compare/v1.11.0...v1.11.1 +[1.11.0]: https://github.com/urfave/cli/compare/v1.10.2...v1.11.0 +[1.10.2]: https://github.com/urfave/cli/compare/v1.10.1...v1.10.2 +[1.10.1]: https://github.com/urfave/cli/compare/v1.10.0...v1.10.1 +[1.10.0]: https://github.com/urfave/cli/compare/v1.9.0...v1.10.0 +[1.9.0]: https://github.com/urfave/cli/compare/v1.8.0...v1.9.0 +[1.8.0]: https://github.com/urfave/cli/compare/v1.7.1...v1.8.0 +[1.7.1]: https://github.com/urfave/cli/compare/v1.7.0...v1.7.1 +[1.7.0]: https://github.com/urfave/cli/compare/v1.6.0...v1.7.0 +[1.6.0]: https://github.com/urfave/cli/compare/v1.5.0...v1.6.0 +[1.5.0]: https://github.com/urfave/cli/compare/v1.4.1...v1.5.0 +[1.4.1]: https://github.com/urfave/cli/compare/v1.4.0...v1.4.1 +[1.4.0]: https://github.com/urfave/cli/compare/v1.3.1...v1.4.0 +[1.3.1]: https://github.com/urfave/cli/compare/v1.3.0...v1.3.1 +[1.3.0]: https://github.com/urfave/cli/compare/v1.2.0...v1.3.0 +[1.2.0]: https://github.com/urfave/cli/compare/v1.1.0...v1.2.0 +[1.1.0]: https://github.com/urfave/cli/compare/v1.0.0...v1.1.0 +[1.0.0]: https://github.com/urfave/cli/compare/v0.1.0...v1.0.0 diff --git a/vendor/github.com/urfave/cli/README.md b/vendor/github.com/urfave/cli/README.md new file mode 100644 index 0000000..2bbbd8e --- /dev/null +++ b/vendor/github.com/urfave/cli/README.md @@ -0,0 +1,1381 @@ +cli +=== + +[](https://travis-ci.org/urfave/cli) +[](https://ci.appveyor.com/project/urfave/cli) +[](https://godoc.org/github.com/urfave/cli) +[](https://codebeat.co/projects/github-com-urfave-cli) +[](https://goreportcard.com/report/urfave/cli) +[](http://gocover.io/github.com/urfave/cli) / +[](http://gocover.io/github.com/urfave/cli/altsrc) + +**Notice:** This is the library formerly known as +`github.com/codegangsta/cli` -- Github will automatically redirect requests +to this repository, but we recommend updating your references for clarity. + +cli is a simple, fast, and fun package for building command line apps in Go. The +goal is to enable developers to write fast and distributable command line +applications in an expressive way. + +<!-- toc --> + +- [Overview](#overview) +- [Installation](#installation) + * [Supported platforms](#supported-platforms) + * [Using the `v2` branch](#using-the-v2-branch) + * [Pinning to the `v1` releases](#pinning-to-the-v1-releases) +- [Getting Started](#getting-started) +- [Examples](#examples) + * [Arguments](#arguments) + * [Flags](#flags) + + [Placeholder Values](#placeholder-values) + + [Alternate Names](#alternate-names) + + [Ordering](#ordering) + + [Values from the Environment](#values-from-the-environment) + + [Values from alternate input sources (YAML, TOML, and others)](#values-from-alternate-input-sources-yaml-toml-and-others) + * [Subcommands](#subcommands) + * [Subcommands categories](#subcommands-categories) + * [Exit code](#exit-code) + * [Bash Completion](#bash-completion) + + [Enabling](#enabling) + + [Distribution](#distribution) + + [Customization](#customization) + * [Generated Help Text](#generated-help-text) + + [Customization](#customization-1) + * [Version Flag](#version-flag) + + [Customization](#customization-2) + + [Full API Example](#full-api-example) +- [Contribution Guidelines](#contribution-guidelines) + +<!-- tocstop --> + +## Overview + +Command line apps are usually so tiny that there is absolutely no reason why +your code should *not* be self-documenting. Things like generating help text and +parsing command flags/options should not hinder productivity when writing a +command line app. + +**This is where cli comes into play.** cli makes command line programming fun, +organized, and expressive! + +## Installation + +Make sure you have a working Go environment. Go version 1.2+ is supported. [See +the install instructions for Go](http://golang.org/doc/install.html). + +To install cli, simply run: +``` +$ go get github.com/urfave/cli +``` + +Make sure your `PATH` includes the `$GOPATH/bin` directory so your commands can +be easily used: +``` +export PATH=$PATH:$GOPATH/bin +``` + +### Supported platforms + +cli is tested against multiple versions of Go on Linux, and against the latest +released version of Go on OS X and Windows. For full details, see +[`./.travis.yml`](./.travis.yml) and [`./appveyor.yml`](./appveyor.yml). + +### Using the `v2` branch + +**Warning**: The `v2` branch is currently unreleased and considered unstable. + +There is currently a long-lived branch named `v2` that is intended to land as +the new `master` branch once development there has settled down. The current +`master` branch (mirrored as `v1`) is being manually merged into `v2` on +an irregular human-based schedule, but generally if one wants to "upgrade" to +`v2` *now* and accept the volatility (read: "awesomeness") that comes along with +that, please use whatever version pinning of your preference, such as via +`gopkg.in`: + +``` +$ go get gopkg.in/urfave/cli.v2 +``` + +``` go +... +import ( + "gopkg.in/urfave/cli.v2" // imports as package "cli" +) +... +``` + +### Pinning to the `v1` releases + +Similarly to the section above describing use of the `v2` branch, if one wants +to avoid any unexpected compatibility pains once `v2` becomes `master`, then +pinning to `v1` is an acceptable option, e.g.: + +``` +$ go get gopkg.in/urfave/cli.v1 +``` + +``` go +... +import ( + "gopkg.in/urfave/cli.v1" // imports as package "cli" +) +... +``` + +This will pull the latest tagged `v1` release (e.g. `v1.18.1` at the time of writing). + +## Getting Started + +One of the philosophies behind cli is that an API should be playful and full of +discovery. So a cli app can be as little as one line of code in `main()`. + +<!-- { + "args": ["--help"], + "output": "A new cli application" +} --> +``` go +package main + +import ( + "os" + + "github.com/urfave/cli" +) + +func main() { + cli.NewApp().Run(os.Args) +} +``` + +This app will run and show help text, but is not very useful. Let's give an +action to execute and some help documentation: + +<!-- { + "output": "boom! I say!" +} --> +``` go +package main + +import ( + "fmt" + "os" + + "github.com/urfave/cli" +) + +func main() { + app := cli.NewApp() + app.Name = "boom" + app.Usage = "make an explosive entrance" + app.Action = func(c *cli.Context) error { + fmt.Println("boom! I say!") + return nil + } + + app.Run(os.Args) +} +``` + +Running this already gives you a ton of functionality, plus support for things +like subcommands and flags, which are covered below. + +## Examples + +Being a programmer can be a lonely job. Thankfully by the power of automation +that is not the case! Let's create a greeter app to fend off our demons of +loneliness! + +Start by creating a directory named `greet`, and within it, add a file, +`greet.go` with the following code in it: + +<!-- { + "output": "Hello friend!" +} --> +``` go +package main + +import ( + "fmt" + "os" + + "github.com/urfave/cli" +) + +func main() { + app := cli.NewApp() + app.Name = "greet" + app.Usage = "fight the loneliness!" + app.Action = func(c *cli.Context) error { + fmt.Println("Hello friend!") + return nil + } + + app.Run(os.Args) +} +``` + +Install our command to the `$GOPATH/bin` directory: + +``` +$ go install +``` + +Finally run our new command: + +``` +$ greet +Hello friend! +``` + +cli also generates neat help text: + +``` +$ greet help +NAME: + greet - fight the loneliness! + +USAGE: + greet [global options] command [command options] [arguments...] + +VERSION: + 0.0.0 + +COMMANDS: + help, h Shows a list of commands or help for one command + +GLOBAL OPTIONS + --version Shows version information +``` + +### Arguments + +You can lookup arguments by calling the `Args` function on `cli.Context`, e.g.: + +<!-- { + "output": "Hello \"" +} --> +``` go +package main + +import ( + "fmt" + "os" + + "github.com/urfave/cli" +) + +func main() { + app := cli.NewApp() + + app.Action = func(c *cli.Context) error { + fmt.Printf("Hello %q", c.Args().Get(0)) + return nil + } + + app.Run(os.Args) +} +``` + +### Flags + +Setting and querying flags is simple. + +<!-- { + "output": "Hello Nefertiti" +} --> +``` go +package main + +import ( + "fmt" + "os" + + "github.com/urfave/cli" +) + +func main() { + app := cli.NewApp() + + app.Flags = []cli.Flag { + cli.StringFlag{ + Name: "lang", + Value: "english", + Usage: "language for the greeting", + }, + } + + app.Action = func(c *cli.Context) error { + name := "Nefertiti" + if c.NArg() > 0 { + name = c.Args().Get(0) + } + if c.String("lang") == "spanish" { + fmt.Println("Hola", name) + } else { + fmt.Println("Hello", name) + } + return nil + } + + app.Run(os.Args) +} +``` + +You can also set a destination variable for a flag, to which the content will be +scanned. + +<!-- { + "output": "Hello someone" +} --> +``` go +package main + +import ( + "os" + "fmt" + + "github.com/urfave/cli" +) + +func main() { + var language string + + app := cli.NewApp() + + app.Flags = []cli.Flag { + cli.StringFlag{ + Name: "lang", + Value: "english", + Usage: "language for the greeting", + Destination: &language, + }, + } + + app.Action = func(c *cli.Context) error { + name := "someone" + if c.NArg() > 0 { + name = c.Args()[0] + } + if language == "spanish" { + fmt.Println("Hola", name) + } else { + fmt.Println("Hello", name) + } + return nil + } + + app.Run(os.Args) +} +``` + +See full list of flags at http://godoc.org/github.com/urfave/cli + +#### Placeholder Values + +Sometimes it's useful to specify a flag's value within the usage string itself. +Such placeholders are indicated with back quotes. + +For example this: + +<!-- { + "args": ["--help"], + "output": "--config FILE, -c FILE" +} --> +```go +package main + +import ( + "os" + + "github.com/urfave/cli" +) + +func main() { + app := cli.NewApp() + + app.Flags = []cli.Flag{ + cli.StringFlag{ + Name: "config, c", + Usage: "Load configuration from `FILE`", + }, + } + + app.Run(os.Args) +} +``` + +Will result in help output like: + +``` +--config FILE, -c FILE Load configuration from FILE +``` + +Note that only the first placeholder is used. Subsequent back-quoted words will +be left as-is. + +#### Alternate Names + +You can set alternate (or short) names for flags by providing a comma-delimited +list for the `Name`. e.g. + +<!-- { + "args": ["--help"], + "output": "--lang value, -l value.*language for the greeting.*default: \"english\"" +} --> +``` go +package main + +import ( + "os" + + "github.com/urfave/cli" +) + +func main() { + app := cli.NewApp() + + app.Flags = []cli.Flag { + cli.StringFlag{ + Name: "lang, l", + Value: "english", + Usage: "language for the greeting", + }, + } + + app.Run(os.Args) +} +``` + +That flag can then be set with `--lang spanish` or `-l spanish`. Note that +giving two different forms of the same flag in the same command invocation is an +error. + +#### Ordering + +Flags for the application and commands are shown in the order they are defined. +However, it's possible to sort them from outside this library by using `FlagsByName` +or `CommandsByName` with `sort`. + +For example this: + +<!-- { + "args": ["--help"], + "output": "add a task to the list\n.*complete a task on the list\n.*\n\n.*\n.*Load configuration from FILE\n.*Language for the greeting.*" +} --> +``` go +package main + +import ( + "os" + "sort" + + "github.com/urfave/cli" +) + +func main() { + app := cli.NewApp() + + app.Flags = []cli.Flag { + cli.StringFlag{ + Name: "lang, l", + Value: "english", + Usage: "Language for the greeting", + }, + cli.StringFlag{ + Name: "config, c", + Usage: "Load configuration from `FILE`", + }, + } + + app.Commands = []cli.Command{ + { + Name: "complete", + Aliases: []string{"c"}, + Usage: "complete a task on the list", + Action: func(c *cli.Context) error { + return nil + }, + }, + { + Name: "add", + Aliases: []string{"a"}, + Usage: "add a task to the list", + Action: func(c *cli.Context) error { + return nil + }, + }, + } + + sort.Sort(cli.FlagsByName(app.Flags)) + sort.Sort(cli.CommandsByName(app.Commands)) + + app.Run(os.Args) +} +``` + +Will result in help output like: + +``` +--config FILE, -c FILE Load configuration from FILE +--lang value, -l value Language for the greeting (default: "english") +``` + +#### Values from the Environment + +You can also have the default value set from the environment via `EnvVar`. e.g. + +<!-- { + "args": ["--help"], + "output": "language for the greeting.*APP_LANG" +} --> +``` go +package main + +import ( + "os" + + "github.com/urfave/cli" +) + +func main() { + app := cli.NewApp() + + app.Flags = []cli.Flag { + cli.StringFlag{ + Name: "lang, l", + Value: "english", + Usage: "language for the greeting", + EnvVar: "APP_LANG", + }, + } + + app.Run(os.Args) +} +``` + +The `EnvVar` may also be given as a comma-delimited "cascade", where the first +environment variable that resolves is used as the default. + +<!-- { + "args": ["--help"], + "output": "language for the greeting.*LEGACY_COMPAT_LANG.*APP_LANG.*LANG" +} --> +``` go +package main + +import ( + "os" + + "github.com/urfave/cli" +) + +func main() { + app := cli.NewApp() + + app.Flags = []cli.Flag { + cli.StringFlag{ + Name: "lang, l", + Value: "english", + Usage: "language for the greeting", + EnvVar: "LEGACY_COMPAT_LANG,APP_LANG,LANG", + }, + } + + app.Run(os.Args) +} +``` + +#### Values from alternate input sources (YAML, TOML, and others) + +There is a separate package altsrc that adds support for getting flag values +from other file input sources. + +Currently supported input source formats: +* YAML +* TOML + +In order to get values for a flag from an alternate input source the following +code would be added to wrap an existing cli.Flag like below: + +``` go + altsrc.NewIntFlag(cli.IntFlag{Name: "test"}) +``` + +Initialization must also occur for these flags. Below is an example initializing +getting data from a yaml file below. + +``` go + command.Before = altsrc.InitInputSourceWithContext(command.Flags, NewYamlSourceFromFlagFunc("load")) +``` + +The code above will use the "load" string as a flag name to get the file name of +a yaml file from the cli.Context. It will then use that file name to initialize +the yaml input source for any flags that are defined on that command. As a note +the "load" flag used would also have to be defined on the command flags in order +for this code snipped to work. + +Currently only the aboved specified formats are supported but developers can +add support for other input sources by implementing the +altsrc.InputSourceContext for their given sources. + +Here is a more complete sample of a command using YAML support: + +<!-- { + "args": ["test-cmd", "--help"], + "output": "--test value.*default: 0" +} --> +``` go +package notmain + +import ( + "fmt" + "os" + + "github.com/urfave/cli" + "github.com/urfave/cli/altsrc" +) + +func main() { + app := cli.NewApp() + + flags := []cli.Flag{ + altsrc.NewIntFlag(cli.IntFlag{Name: "test"}), + cli.StringFlag{Name: "load"}, + } + + app.Action = func(c *cli.Context) error { + fmt.Println("yaml ist rad") + return nil + } + + app.Before = altsrc.InitInputSourceWithContext(flags, altsrc.NewYamlSourceFromFlagFunc("load")) + app.Flags = flags + + app.Run(os.Args) +} +``` + +### Subcommands + +Subcommands can be defined for a more git-like command line app. + +<!-- { + "args": ["template", "add"], + "output": "new task template: .+" +} --> +```go +package main + +import ( + "fmt" + "os" + + "github.com/urfave/cli" +) + +func main() { + app := cli.NewApp() + + app.Commands = []cli.Command{ + { + Name: "add", + Aliases: []string{"a"}, + Usage: "add a task to the list", + Action: func(c *cli.Context) error { + fmt.Println("added task: ", c.Args().First()) + return nil + }, + }, + { + Name: "complete", + Aliases: []string{"c"}, + Usage: "complete a task on the list", + Action: func(c *cli.Context) error { + fmt.Println("completed task: ", c.Args().First()) + return nil + }, + }, + { + Name: "template", + Aliases: []string{"t"}, + Usage: "options for task templates", + Subcommands: []cli.Command{ + { + Name: "add", + Usage: "add a new template", + Action: func(c *cli.Context) error { + fmt.Println("new task template: ", c.Args().First()) + return nil + }, + }, + { + Name: "remove", + Usage: "remove an existing template", + Action: func(c *cli.Context) error { + fmt.Println("removed task template: ", c.Args().First()) + return nil + }, + }, + }, + }, + } + + app.Run(os.Args) +} +``` + +### Subcommands categories + +For additional organization in apps that have many subcommands, you can +associate a category for each command to group them together in the help +output. + +E.g. + +```go +package main + +import ( + "os" + + "github.com/urfave/cli" +) + +func main() { + app := cli.NewApp() + + app.Commands = []cli.Command{ + { + Name: "noop", + }, + { + Name: "add", + Category: "template", + }, + { + Name: "remove", + Category: "template", + }, + } + + app.Run(os.Args) +} +``` + +Will include: + +``` +COMMANDS: + noop + + Template actions: + add + remove +``` + +### Exit code + +Calling `App.Run` will not automatically call `os.Exit`, which means that by +default the exit code will "fall through" to being `0`. An explicit exit code +may be set by returning a non-nil error that fulfills `cli.ExitCoder`, *or* a +`cli.MultiError` that includes an error that fulfills `cli.ExitCoder`, e.g.: + +``` go +package main + +import ( + "os" + + "github.com/urfave/cli" +) + +func main() { + app := cli.NewApp() + app.Flags = []cli.Flag{ + cli.BoolTFlag{ + Name: "ginger-crouton", + Usage: "is it in the soup?", + }, + } + app.Action = func(ctx *cli.Context) error { + if !ctx.Bool("ginger-crouton") { + return cli.NewExitError("it is not in the soup", 86) + } + return nil + } + + app.Run(os.Args) +} +``` + +### Bash Completion + +You can enable completion commands by setting the `EnableBashCompletion` +flag on the `App` object. By default, this setting will only auto-complete to +show an app's subcommands, but you can write your own completion methods for +the App or its subcommands. + +<!-- { + "args": ["complete", "--generate-bash-completion"], + "output": "laundry" +} --> +``` go +package main + +import ( + "fmt" + "os" + + "github.com/urfave/cli" +) + +func main() { + tasks := []string{"cook", "clean", "laundry", "eat", "sleep", "code"} + + app := cli.NewApp() + app.EnableBashCompletion = true + app.Commands = []cli.Command{ + { + Name: "complete", + Aliases: []string{"c"}, + Usage: "complete a task on the list", + Action: func(c *cli.Context) error { + fmt.Println("completed task: ", c.Args().First()) + return nil + }, + BashComplete: func(c *cli.Context) { + // This will complete if no args are passed + if c.NArg() > 0 { + return + } + for _, t := range tasks { + fmt.Println(t) + } + }, + }, + } + + app.Run(os.Args) +} +``` + +#### Enabling + +Source the `autocomplete/bash_autocomplete` file in your `.bashrc` file while +setting the `PROG` variable to the name of your program: + +`PROG=myprogram source /.../cli/autocomplete/bash_autocomplete` + +#### Distribution + +Copy `autocomplete/bash_autocomplete` into `/etc/bash_completion.d/` and rename +it to the name of the program you wish to add autocomplete support for (or +automatically install it there if you are distributing a package). Don't forget +to source the file to make it active in the current shell. + +``` +sudo cp src/bash_autocomplete /etc/bash_completion.d/<myprogram> +source /etc/bash_completion.d/<myprogram> +``` + +Alternatively, you can just document that users should source the generic +`autocomplete/bash_autocomplete` in their bash configuration with `$PROG` set +to the name of their program (as above). + +#### Customization + +The default bash completion flag (`--generate-bash-completion`) is defined as +`cli.BashCompletionFlag`, and may be redefined if desired, e.g.: + +<!-- { + "args": ["--compgen"], + "output": "wat\nhelp\nh" +} --> +``` go +package main + +import ( + "os" + + "github.com/urfave/cli" +) + +func main() { + cli.BashCompletionFlag = cli.BoolFlag{ + Name: "compgen", + Hidden: true, + } + + app := cli.NewApp() + app.EnableBashCompletion = true + app.Commands = []cli.Command{ + { + Name: "wat", + }, + } + app.Run(os.Args) +} +``` + +### Generated Help Text + +The default help flag (`-h/--help`) is defined as `cli.HelpFlag` and is checked +by the cli internals in order to print generated help text for the app, command, +or subcommand, and break execution. + +#### Customization + +All of the help text generation may be customized, and at multiple levels. The +templates are exposed as variables `AppHelpTemplate`, `CommandHelpTemplate`, and +`SubcommandHelpTemplate` which may be reassigned or augmented, and full override +is possible by assigning a compatible func to the `cli.HelpPrinter` variable, +e.g.: + +<!-- { + "output": "Ha HA. I pwnd the help!!1" +} --> +``` go +package main + +import ( + "fmt" + "io" + "os" + + "github.com/urfave/cli" +) + +func main() { + // EXAMPLE: Append to an existing template + cli.AppHelpTemplate = fmt.Sprintf(`%s + +WEBSITE: http://awesometown.example.com + +SUPPORT: support@awesometown.example.com + +`, cli.AppHelpTemplate) + + // EXAMPLE: Override a template + cli.AppHelpTemplate = `NAME: + {{.Name}} - {{.Usage}} +USAGE: + {{.HelpName}} {{if .VisibleFlags}}[global options]{{end}}{{if .Commands}} command [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}} + {{if len .Authors}} +AUTHOR: + {{range .Authors}}{{ . }}{{end}} + {{end}}{{if .Commands}} +COMMANDS: +{{range .Commands}}{{if not .HideHelp}} {{join .Names ", "}}{{ "\t"}}{{.Usage}}{{ "\n" }}{{end}}{{end}}{{end}}{{if .VisibleFlags}} +GLOBAL OPTIONS: + {{range .VisibleFlags}}{{.}} + {{end}}{{end}}{{if .Copyright }} +COPYRIGHT: + {{.Copyright}} + {{end}}{{if .Version}} +VERSION: + {{.Version}} + {{end}} +` + + // EXAMPLE: Replace the `HelpPrinter` func + cli.HelpPrinter = func(w io.Writer, templ string, data interface{}) { + fmt.Println("Ha HA. I pwnd the help!!1") + } + + cli.NewApp().Run(os.Args) +} +``` + +The default flag may be customized to something other than `-h/--help` by +setting `cli.HelpFlag`, e.g.: + +<!-- { + "args": ["--halp"], + "output": "haaaaalp.*HALP" +} --> +``` go +package main + +import ( + "os" + + "github.com/urfave/cli" +) + +func main() { + cli.HelpFlag = cli.BoolFlag{ + Name: "halp, haaaaalp", + Usage: "HALP", + EnvVar: "SHOW_HALP,HALPPLZ", + } + + cli.NewApp().Run(os.Args) +} +``` + +### Version Flag + +The default version flag (`-v/--version`) is defined as `cli.VersionFlag`, which +is checked by the cli internals in order to print the `App.Version` via +`cli.VersionPrinter` and break execution. + +#### Customization + +The default flag may be customized to something other than `-v/--version` by +setting `cli.VersionFlag`, e.g.: + +<!-- { + "args": ["--print-version"], + "output": "partay version 19\\.99\\.0" +} --> +``` go +package main + +import ( + "os" + + "github.com/urfave/cli" +) + +func main() { + cli.VersionFlag = cli.BoolFlag{ + Name: "print-version, V", + Usage: "print only the version", + } + + app := cli.NewApp() + app.Name = "partay" + app.Version = "19.99.0" + app.Run(os.Args) +} +``` + +Alternatively, the version printer at `cli.VersionPrinter` may be overridden, e.g.: + +<!-- { + "args": ["--version"], + "output": "version=19\\.99\\.0 revision=fafafaf" +} --> +``` go +package main + +import ( + "fmt" + "os" + + "github.com/urfave/cli" +) + +var ( + Revision = "fafafaf" +) + +func main() { + cli.VersionPrinter = func(c *cli.Context) { + fmt.Printf("version=%s revision=%s\n", c.App.Version, Revision) + } + + app := cli.NewApp() + app.Name = "partay" + app.Version = "19.99.0" + app.Run(os.Args) +} +``` + +#### Full API Example + +**Notice**: This is a contrived (functioning) example meant strictly for API +demonstration purposes. Use of one's imagination is encouraged. + +<!-- { + "output": "made it!\nPhew!" +} --> +``` go +package main + +import ( + "errors" + "flag" + "fmt" + "io" + "io/ioutil" + "os" + "time" + + "github.com/urfave/cli" +) + +func init() { + cli.AppHelpTemplate += "\nCUSTOMIZED: you bet ur muffins\n" + cli.CommandHelpTemplate += "\nYMMV\n" + cli.SubcommandHelpTemplate += "\nor something\n" + + cli.HelpFlag = cli.BoolFlag{Name: "halp"} + cli.BashCompletionFlag = cli.BoolFlag{Name: "compgen", Hidden: true} + cli.VersionFlag = cli.BoolFlag{Name: "print-version, V"} + + cli.HelpPrinter = func(w io.Writer, templ string, data interface{}) { + fmt.Fprintf(w, "best of luck to you\n") + } + cli.VersionPrinter = func(c *cli.Context) { + fmt.Fprintf(c.App.Writer, "version=%s\n", c.App.Version) + } + cli.OsExiter = func(c int) { + fmt.Fprintf(cli.ErrWriter, "refusing to exit %d\n", c) + } + cli.ErrWriter = ioutil.Discard + cli.FlagStringer = func(fl cli.Flag) string { + return fmt.Sprintf("\t\t%s", fl.GetName()) + } +} + +type hexWriter struct{} + +func (w *hexWriter) Write(p []byte) (int, error) { + for _, b := range p { + fmt.Printf("%x", b) + } + fmt.Printf("\n") + + return len(p), nil +} + +type genericType struct{ + s string +} + +func (g *genericType) Set(value string) error { + g.s = value + return nil +} + +func (g *genericType) String() string { + return g.s +} + +func main() { + app := cli.NewApp() + app.Name = "kənˈtrīv" + app.Version = "19.99.0" + app.Compiled = time.Now() + app.Authors = []cli.Author{ + cli.Author{ + Name: "Example Human", + Email: "human@example.com", + }, + } + app.Copyright = "(c) 1999 Serious Enterprise" + app.HelpName = "contrive" + app.Usage = "demonstrate available API" + app.UsageText = "contrive - demonstrating the available API" + app.ArgsUsage = "[args and such]" + app.Commands = []cli.Command{ + cli.Command{ + Name: "doo", + Aliases: []string{"do"}, + Category: "motion", + Usage: "do the doo", + UsageText: "doo - does the dooing", + Description: "no really, there is a lot of dooing to be done", + ArgsUsage: "[arrgh]", + Flags: []cli.Flag{ + cli.BoolFlag{Name: "forever, forevvarr"}, + }, + Subcommands: cli.Commands{ + cli.Command{ + Name: "wop", + Action: wopAction, + }, + }, + SkipFlagParsing: false, + HideHelp: false, + Hidden: false, + HelpName: "doo!", + BashComplete: func(c *cli.Context) { + fmt.Fprintf(c.App.Writer, "--better\n") + }, + Before: func(c *cli.Context) error { + fmt.Fprintf(c.App.Writer, "brace for impact\n") + return nil + }, + After: func(c *cli.Context) error { + fmt.Fprintf(c.App.Writer, "did we lose anyone?\n") + return nil + }, + Action: func(c *cli.Context) error { + c.Command.FullName() + c.Command.HasName("wop") + c.Command.Names() + c.Command.VisibleFlags() + fmt.Fprintf(c.App.Writer, "dodododododoodododddooooododododooo\n") + if c.Bool("forever") { + c.Command.Run(c) + } + return nil + }, + OnUsageError: func(c *cli.Context, err error, isSubcommand bool) error { + fmt.Fprintf(c.App.Writer, "for shame\n") + return err + }, + }, + } + app.Flags = []cli.Flag{ + cli.BoolFlag{Name: "fancy"}, + cli.BoolTFlag{Name: "fancier"}, + cli.DurationFlag{Name: "howlong, H", Value: time.Second * 3}, + cli.Float64Flag{Name: "howmuch"}, + cli.GenericFlag{Name: "wat", Value: &genericType{}}, + cli.Int64Flag{Name: "longdistance"}, + cli.Int64SliceFlag{Name: "intervals"}, + cli.IntFlag{Name: "distance"}, + cli.IntSliceFlag{Name: "times"}, + cli.StringFlag{Name: "dance-move, d"}, + cli.StringSliceFlag{Name: "names, N"}, + cli.UintFlag{Name: "age"}, + cli.Uint64Flag{Name: "bigage"}, + } + app.EnableBashCompletion = true + app.HideHelp = false + app.HideVersion = false + app.BashComplete = func(c *cli.Context) { + fmt.Fprintf(c.App.Writer, "lipstick\nkiss\nme\nlipstick\nringo\n") + } + app.Before = func(c *cli.Context) error { + fmt.Fprintf(c.App.Writer, "HEEEERE GOES\n") + return nil + } + app.After = func(c *cli.Context) error { + fmt.Fprintf(c.App.Writer, "Phew!\n") + return nil + } + app.CommandNotFound = func(c *cli.Context, command string) { + fmt.Fprintf(c.App.Writer, "Thar be no %q here.\n", command) + } + app.OnUsageError = func(c *cli.Context, err error, isSubcommand bool) error { + if isSubcommand { + return err + } + + fmt.Fprintf(c.App.Writer, "WRONG: %#v\n", err) + return nil + } + app.Action = func(c *cli.Context) error { + cli.DefaultAppComplete(c) + cli.HandleExitCoder(errors.New("not an exit coder, though")) + cli.ShowAppHelp(c) + cli.ShowCommandCompletions(c, "nope") + cli.ShowCommandHelp(c, "also-nope") + cli.ShowCompletions(c) + cli.ShowSubcommandHelp(c) + cli.ShowVersion(c) + + categories := c.App.Categories() + categories.AddCommand("sounds", cli.Command{ + Name: "bloop", + }) + + for _, category := range c.App.Categories() { + fmt.Fprintf(c.App.Writer, "%s\n", category.Name) + fmt.Fprintf(c.App.Writer, "%#v\n", category.Commands) + fmt.Fprintf(c.App.Writer, "%#v\n", category.VisibleCommands()) + } + + fmt.Printf("%#v\n", c.App.Command("doo")) + if c.Bool("infinite") { + c.App.Run([]string{"app", "doo", "wop"}) + } + + if c.Bool("forevar") { + c.App.RunAsSubcommand(c) + } + c.App.Setup() + fmt.Printf("%#v\n", c.App.VisibleCategories()) + fmt.Printf("%#v\n", c.App.VisibleCommands()) + fmt.Printf("%#v\n", c.App.VisibleFlags()) + + fmt.Printf("%#v\n", c.Args().First()) + if len(c.Args()) > 0 { + fmt.Printf("%#v\n", c.Args()[1]) + } + fmt.Printf("%#v\n", c.Args().Present()) + fmt.Printf("%#v\n", c.Args().Tail()) + + set := flag.NewFlagSet("contrive", 0) + nc := cli.NewContext(c.App, set, c) + + fmt.Printf("%#v\n", nc.Args()) + fmt.Printf("%#v\n", nc.Bool("nope")) + fmt.Printf("%#v\n", nc.BoolT("nerp")) + fmt.Printf("%#v\n", nc.Duration("howlong")) + fmt.Printf("%#v\n", nc.Float64("hay")) + fmt.Printf("%#v\n", nc.Generic("bloop")) + fmt.Printf("%#v\n", nc.Int64("bonk")) + fmt.Printf("%#v\n", nc.Int64Slice("burnks")) + fmt.Printf("%#v\n", nc.Int("bips")) + fmt.Printf("%#v\n", nc.IntSlice("blups")) + fmt.Printf("%#v\n", nc.String("snurt")) + fmt.Printf("%#v\n", nc.StringSlice("snurkles")) + fmt.Printf("%#v\n", nc.Uint("flub")) + fmt.Printf("%#v\n", nc.Uint64("florb")) + fmt.Printf("%#v\n", nc.GlobalBool("global-nope")) + fmt.Printf("%#v\n", nc.GlobalBoolT("global-nerp")) + fmt.Printf("%#v\n", nc.GlobalDuration("global-howlong")) + fmt.Printf("%#v\n", nc.GlobalFloat64("global-hay")) + fmt.Printf("%#v\n", nc.GlobalGeneric("global-bloop")) + fmt.Printf("%#v\n", nc.GlobalInt("global-bips")) + fmt.Printf("%#v\n", nc.GlobalIntSlice("global-blups")) + fmt.Printf("%#v\n", nc.GlobalString("global-snurt")) + fmt.Printf("%#v\n", nc.GlobalStringSlice("global-snurkles")) + + fmt.Printf("%#v\n", nc.FlagNames()) + fmt.Printf("%#v\n", nc.GlobalFlagNames()) + fmt.Printf("%#v\n", nc.GlobalIsSet("wat")) + fmt.Printf("%#v\n", nc.GlobalSet("wat", "nope")) + fmt.Printf("%#v\n", nc.NArg()) + fmt.Printf("%#v\n", nc.NumFlags()) + fmt.Printf("%#v\n", nc.Parent()) + + nc.Set("wat", "also-nope") + + ec := cli.NewExitError("ohwell", 86) + fmt.Fprintf(c.App.Writer, "%d", ec.ExitCode()) + fmt.Printf("made it!\n") + return ec + } + + if os.Getenv("HEXY") != "" { + app.Writer = &hexWriter{} + app.ErrWriter = &hexWriter{} + } + + app.Metadata = map[string]interface{}{ + "layers": "many", + "explicable": false, + "whatever-values": 19.99, + } + + app.Run(os.Args) +} + +func wopAction(c *cli.Context) error { + fmt.Fprintf(c.App.Writer, ":wave: over here, eh\n") + return nil +} +``` + +## Contribution Guidelines + +Feel free to put up a pull request to fix a bug or maybe add a feature. I will +give it a code review and make sure that it does not break backwards +compatibility. If I or any other collaborators agree that it is in line with +the vision of the project, we will work with you to get the code into +a mergeable state and merge it into the master branch. + +If you have contributed something significant to the project, we will most +likely add you as a collaborator. As a collaborator you are given the ability +to merge others pull requests. It is very important that new code does not +break existing code, so be careful about what code you do choose to merge. + +If you feel like you have contributed to the project but have not yet been +added as a collaborator, we probably forgot to add you, please open an issue. diff --git a/vendor/github.com/urfave/cli/appveyor.yml b/vendor/github.com/urfave/cli/appveyor.yml new file mode 100644 index 0000000..1e1489c --- /dev/null +++ b/vendor/github.com/urfave/cli/appveyor.yml @@ -0,0 +1,26 @@ +version: "{build}" + +os: Windows Server 2016 + +image: Visual Studio 2017 + +clone_folder: c:\gopath\src\github.com\urfave\cli + +environment: + GOPATH: C:\gopath + GOVERSION: 1.8.x + PYTHON: C:\Python36-x64 + PYTHON_VERSION: 3.6.x + PYTHON_ARCH: 64 + +install: +- set PATH=%GOPATH%\bin;C:\go\bin;%PATH% +- go version +- go env +- go get github.com/urfave/gfmrun/... +- go get -v -t ./... + +build_script: +- python runtests vet +- python runtests test +- python runtests gfmrun diff --git a/vendor/github.com/urfave/cli/flag-types.json b/vendor/github.com/urfave/cli/flag-types.json new file mode 100644 index 0000000..1223107 --- /dev/null +++ b/vendor/github.com/urfave/cli/flag-types.json @@ -0,0 +1,93 @@ +[ + { + "name": "Bool", + "type": "bool", + "value": false, + "context_default": "false", + "parser": "strconv.ParseBool(f.Value.String())" + }, + { + "name": "BoolT", + "type": "bool", + "value": false, + "doctail": " that is true by default", + "context_default": "false", + "parser": "strconv.ParseBool(f.Value.String())" + }, + { + "name": "Duration", + "type": "time.Duration", + "doctail": " (see https://golang.org/pkg/time/#ParseDuration)", + "context_default": "0", + "parser": "time.ParseDuration(f.Value.String())" + }, + { + "name": "Float64", + "type": "float64", + "context_default": "0", + "parser": "strconv.ParseFloat(f.Value.String(), 64)" + }, + { + "name": "Generic", + "type": "Generic", + "dest": false, + "context_default": "nil", + "context_type": "interface{}" + }, + { + "name": "Int64", + "type": "int64", + "context_default": "0", + "parser": "strconv.ParseInt(f.Value.String(), 0, 64)" + }, + { + "name": "Int", + "type": "int", + "context_default": "0", + "parser": "strconv.ParseInt(f.Value.String(), 0, 64)", + "parser_cast": "int(parsed)" + }, + { + "name": "IntSlice", + "type": "*IntSlice", + "dest": false, + "context_default": "nil", + "context_type": "[]int", + "parser": "(f.Value.(*IntSlice)).Value(), error(nil)" + }, + { + "name": "Int64Slice", + "type": "*Int64Slice", + "dest": false, + "context_default": "nil", + "context_type": "[]int64", + "parser": "(f.Value.(*Int64Slice)).Value(), error(nil)" + }, + { + "name": "String", + "type": "string", + "context_default": "\"\"", + "parser": "f.Value.String(), error(nil)" + }, + { + "name": "StringSlice", + "type": "*StringSlice", + "dest": false, + "context_default": "nil", + "context_type": "[]string", + "parser": "(f.Value.(*StringSlice)).Value(), error(nil)" + }, + { + "name": "Uint64", + "type": "uint64", + "context_default": "0", + "parser": "strconv.ParseUint(f.Value.String(), 0, 64)" + }, + { + "name": "Uint", + "type": "uint", + "context_default": "0", + "parser": "strconv.ParseUint(f.Value.String(), 0, 64)", + "parser_cast": "uint(parsed)" + } +] diff --git a/vendor/github.com/urfave/cli/generate-flag-types b/vendor/github.com/urfave/cli/generate-flag-types new file mode 100644 index 0000000..7147381 --- /dev/null +++ b/vendor/github.com/urfave/cli/generate-flag-types @@ -0,0 +1,255 @@ +#!/usr/bin/env python +""" +The flag types that ship with the cli library have many things in common, and +so we can take advantage of the `go generate` command to create much of the +source code from a list of definitions. These definitions attempt to cover +the parts that vary between flag types, and should evolve as needed. + +An example of the minimum definition needed is: + + { + "name": "SomeType", + "type": "sometype", + "context_default": "nil" + } + +In this example, the code generated for the `cli` package will include a type +named `SomeTypeFlag` that is expected to wrap a value of type `sometype`. +Fetching values by name via `*cli.Context` will default to a value of `nil`. + +A more complete, albeit somewhat redundant, example showing all available +definition keys is: + + { + "name": "VeryMuchType", + "type": "*VeryMuchType", + "value": true, + "dest": false, + "doctail": " which really only wraps a []float64, oh well!", + "context_type": "[]float64", + "context_default": "nil", + "parser": "parseVeryMuchType(f.Value.String())", + "parser_cast": "[]float64(parsed)" + } + +The meaning of each field is as follows: + + name (string) - The type "name", which will be suffixed with + `Flag` when generating the type definition + for `cli` and the wrapper type for `altsrc` + type (string) - The type that the generated `Flag` type for `cli` + is expected to "contain" as its `.Value` member + value (bool) - Should the generated `cli` type have a `Value` + member? + dest (bool) - Should the generated `cli` type support a + destination pointer? + doctail (string) - Additional docs for the `cli` flag type comment + context_type (string) - The literal type used in the `*cli.Context` + reader func signature + context_default (string) - The literal value used as the default by the + `*cli.Context` reader funcs when no value is + present + parser (string) - Literal code used to parse the flag `f`, + expected to have a return signature of + (value, error) + parser_cast (string) - Literal code used to cast the `parsed` value + returned from the `parser` code +""" + +from __future__ import print_function, unicode_literals + +import argparse +import json +import os +import subprocess +import sys +import tempfile +import textwrap + + +class _FancyFormatter(argparse.ArgumentDefaultsHelpFormatter, + argparse.RawDescriptionHelpFormatter): + pass + + +def main(sysargs=sys.argv[:]): + parser = argparse.ArgumentParser( + description='Generate flag type code!', + formatter_class=_FancyFormatter) + parser.add_argument( + 'package', + type=str, default='cli', choices=_WRITEFUNCS.keys(), + help='Package for which flag types will be generated' + ) + parser.add_argument( + '-i', '--in-json', + type=argparse.FileType('r'), + default=sys.stdin, + help='Input JSON file which defines each type to be generated' + ) + parser.add_argument( + '-o', '--out-go', + type=argparse.FileType('w'), + default=sys.stdout, + help='Output file/stream to which generated source will be written' + ) + parser.epilog = __doc__ + + args = parser.parse_args(sysargs[1:]) + _generate_flag_types(_WRITEFUNCS[args.package], args.out_go, args.in_json) + return 0 + + +def _generate_flag_types(writefunc, output_go, input_json): + types = json.load(input_json) + + tmp = tempfile.NamedTemporaryFile(suffix='.go', delete=False) + writefunc(tmp, types) + tmp.close() + + new_content = subprocess.check_output( + ['goimports', tmp.name] + ).decode('utf-8') + + print(new_content, file=output_go, end='') + output_go.flush() + os.remove(tmp.name) + + +def _set_typedef_defaults(typedef): + typedef.setdefault('doctail', '') + typedef.setdefault('context_type', typedef['type']) + typedef.setdefault('dest', True) + typedef.setdefault('value', True) + typedef.setdefault('parser', 'f.Value, error(nil)') + typedef.setdefault('parser_cast', 'parsed') + + +def _write_cli_flag_types(outfile, types): + _fwrite(outfile, """\ + package cli + + // WARNING: This file is generated! + + """) + + for typedef in types: + _set_typedef_defaults(typedef) + + _fwrite(outfile, """\ + // {name}Flag is a flag with type {type}{doctail} + type {name}Flag struct {{ + Name string + Usage string + EnvVar string + Hidden bool + """.format(**typedef)) + + if typedef['value']: + _fwrite(outfile, """\ + Value {type} + """.format(**typedef)) + + if typedef['dest']: + _fwrite(outfile, """\ + Destination *{type} + """.format(**typedef)) + + _fwrite(outfile, "\n}\n\n") + + _fwrite(outfile, """\ + // String returns a readable representation of this value + // (for usage defaults) + func (f {name}Flag) String() string {{ + return FlagStringer(f) + }} + + // GetName returns the name of the flag + func (f {name}Flag) GetName() string {{ + return f.Name + }} + + // {name} looks up the value of a local {name}Flag, returns + // {context_default} if not found + func (c *Context) {name}(name string) {context_type} {{ + return lookup{name}(name, c.flagSet) + }} + + // Global{name} looks up the value of a global {name}Flag, returns + // {context_default} if not found + func (c *Context) Global{name}(name string) {context_type} {{ + if fs := lookupGlobalFlagSet(name, c); fs != nil {{ + return lookup{name}(name, fs) + }} + return {context_default} + }} + + func lookup{name}(name string, set *flag.FlagSet) {context_type} {{ + f := set.Lookup(name) + if f != nil {{ + parsed, err := {parser} + if err != nil {{ + return {context_default} + }} + return {parser_cast} + }} + return {context_default} + }} + """.format(**typedef)) + + +def _write_altsrc_flag_types(outfile, types): + _fwrite(outfile, """\ + package altsrc + + import ( + "gopkg.in/urfave/cli.v1" + ) + + // WARNING: This file is generated! + + """) + + for typedef in types: + _set_typedef_defaults(typedef) + + _fwrite(outfile, """\ + // {name}Flag is the flag type that wraps cli.{name}Flag to allow + // for other values to be specified + type {name}Flag struct {{ + cli.{name}Flag + set *flag.FlagSet + }} + + // New{name}Flag creates a new {name}Flag + func New{name}Flag(fl cli.{name}Flag) *{name}Flag {{ + return &{name}Flag{{{name}Flag: fl, set: nil}} + }} + + // Apply saves the flagSet for later usage calls, then calls the + // wrapped {name}Flag.Apply + func (f *{name}Flag) Apply(set *flag.FlagSet) {{ + f.set = set + f.{name}Flag.Apply(set) + }} + + // ApplyWithError saves the flagSet for later usage calls, then calls the + // wrapped {name}Flag.ApplyWithError + func (f *{name}Flag) ApplyWithError(set *flag.FlagSet) error {{ + f.set = set + return f.{name}Flag.ApplyWithError(set) + }} + """.format(**typedef)) + + +def _fwrite(outfile, text): + print(textwrap.dedent(text), end='', file=outfile) + + +_WRITEFUNCS = { + 'cli': _write_cli_flag_types, + 'altsrc': _write_altsrc_flag_types +} + +if __name__ == '__main__': + sys.exit(main()) diff --git a/vendor/github.com/urfave/cli/runtests b/vendor/github.com/urfave/cli/runtests new file mode 100644 index 0000000..ee22bde --- /dev/null +++ b/vendor/github.com/urfave/cli/runtests @@ -0,0 +1,122 @@ +#!/usr/bin/env python +from __future__ import print_function + +import argparse +import os +import sys +import tempfile + +from subprocess import check_call, check_output + + +PACKAGE_NAME = os.environ.get( + 'CLI_PACKAGE_NAME', 'github.com/urfave/cli' +) + + +def main(sysargs=sys.argv[:]): + targets = { + 'vet': _vet, + 'test': _test, + 'gfmrun': _gfmrun, + 'toc': _toc, + 'gen': _gen, + } + + parser = argparse.ArgumentParser() + parser.add_argument( + 'target', nargs='?', choices=tuple(targets.keys()), default='test' + ) + args = parser.parse_args(sysargs[1:]) + + targets[args.target]() + return 0 + + +def _test(): + if check_output('go version'.split()).split()[2] < 'go1.2': + _run('go test -v .') + return + + coverprofiles = [] + for subpackage in ['', 'altsrc']: + coverprofile = 'cli.coverprofile' + if subpackage != '': + coverprofile = '{}.coverprofile'.format(subpackage) + + coverprofiles.append(coverprofile) + + _run('go test -v'.split() + [ + '-coverprofile={}'.format(coverprofile), + ('{}/{}'.format(PACKAGE_NAME, subpackage)).rstrip('/') + ]) + + combined_name = _combine_coverprofiles(coverprofiles) + _run('go tool cover -func={}'.format(combined_name)) + os.remove(combined_name) + + +def _gfmrun(): + go_version = check_output('go version'.split()).split()[2] + if go_version < 'go1.3': + print('runtests: skip on {}'.format(go_version), file=sys.stderr) + return + _run(['gfmrun', '-c', str(_gfmrun_count()), '-s', 'README.md']) + + +def _vet(): + _run('go vet ./...') + + +def _toc(): + _run('node_modules/.bin/markdown-toc -i README.md') + _run('git diff --exit-code') + + +def _gen(): + go_version = check_output('go version'.split()).split()[2] + if go_version < 'go1.5': + print('runtests: skip on {}'.format(go_version), file=sys.stderr) + return + + _run('go generate ./...') + _run('git diff --exit-code') + + +def _run(command): + if hasattr(command, 'split'): + command = command.split() + print('runtests: {}'.format(' '.join(command)), file=sys.stderr) + check_call(command) + + +def _gfmrun_count(): + with open('README.md') as infile: + lines = infile.read().splitlines() + return len(filter(_is_go_runnable, lines)) + + +def _is_go_runnable(line): + return line.startswith('package main') + + +def _combine_coverprofiles(coverprofiles): + combined = tempfile.NamedTemporaryFile( + suffix='.coverprofile', delete=False + ) + combined.write('mode: set\n') + + for coverprofile in coverprofiles: + with open(coverprofile, 'r') as infile: + for line in infile.readlines(): + if not line.startswith('mode: '): + combined.write(line) + + combined.flush() + name = combined.name + combined.close() + return name + + +if __name__ == '__main__': + sys.exit(main()) |