pax_global_header 0000666 0000000 0000000 00000000064 12734405620 0014515 g ustar 00root root 0000000 0000000 52 comment=1efa31f08b9333f1bd4882d61f9d668a70cd902e
cli-1.18.0/ 0000775 0000000 0000000 00000000000 12734405620 0012353 5 ustar 00root root 0000000 0000000 cli-1.18.0/.gitignore 0000664 0000000 0000000 00000000035 12734405620 0014341 0 ustar 00root root 0000000 0000000 *.coverprofile
node_modules/
cli-1.18.0/.travis.yml 0000664 0000000 0000000 00000001075 12734405620 0014467 0 ustar 00root root 0000000 0000000 language: go
sudo: false
cache:
directories:
- node_modules
go:
- 1.2.2
- 1.3.3
- 1.4
- 1.5.4
- 1.6.2
- master
matrix:
allow_failures:
- go: master
include:
- go: 1.6.2
os: osx
- go: 1.1.2
install: go get -v .
before_script: echo skipping gfmxr on $TRAVIS_GO_VERSION
script:
- ./runtests vet
- ./runtests test
before_script:
- go get github.com/urfave/gfmxr/...
- if [ ! -f node_modules/.bin/markdown-toc ] ; then
npm install markdown-toc ;
fi
script:
- ./runtests vet
- ./runtests test
- ./runtests gfmxr
- ./runtests toc
cli-1.18.0/CHANGELOG.md 0000664 0000000 0000000 00000025745 12734405620 0014201 0 ustar 00root root 0000000 0000000 # Change Log
**ATTN**: This project uses [semantic versioning](http://semver.org/).
## [Unreleased]
## [1.18.0] - 2016-06-27
### Added
- `./runtests` test runner with coverage tracking by default
- testing on OS X
- testing on Windows
- `UintFlag`, `Uint64Flag`, and `Int64Flag` types and supporting code
### Changed
- Use spaces for alignment in help/usage output instead of tabs, making the
output alignment consistent regardless of tab width
### Fixed
- Printing of command aliases in help text
- Printing of visible flags for both struct and struct pointer flags
- Display the `help` subcommand when using `CommandCategories`
- No longer swallows `panic`s that occur within the `Action`s themselves when
detecting the signature of the `Action` field
## [1.17.0] - 2016-05-09
### Added
- Pluggable flag-level help text rendering via `cli.DefaultFlagStringFunc`
- `context.GlobalBoolT` was added as an analogue to `context.GlobalBool`
- Support for hiding commands by setting `Hidden: true` -- this will hide the
commands in help output
### Changed
- `Float64Flag`, `IntFlag`, and `DurationFlag` default values are no longer
quoted in help text output.
- All flag types now include `(default: {value})` strings following usage when a
default value can be (reasonably) detected.
- `IntSliceFlag` and `StringSliceFlag` usage strings are now more consistent
with non-slice flag types
- Apps now exit with a code of 3 if an unknown subcommand is specified
(previously they printed "No help topic for...", but still exited 0. This
makes it easier to script around apps built using `cli` since they can trust
that a 0 exit code indicated a successful execution.
- cleanups based on [Go Report Card
feedback](https://goreportcard.com/report/github.com/urfave/cli)
## [1.16.0] - 2016-05-02
### Added
- `Hidden` field on all flag struct types to omit from generated help text
### Changed
- `BashCompletionFlag` (`--enable-bash-completion`) is now omitted from
generated help text via the `Hidden` field
### Fixed
- handling of error values in `HandleAction` and `HandleExitCoder`
## [1.15.0] - 2016-04-30
### Added
- This file!
- Support for placeholders in flag usage strings
- `App.Metadata` map for arbitrary data/state management
- `Set` and `GlobalSet` methods on `*cli.Context` for altering values after
parsing.
- Support for nested lookup of dot-delimited keys in structures loaded from
YAML.
### Changed
- The `App.Action` and `Command.Action` now prefer a return signature of
`func(*cli.Context) error`, as defined by `cli.ActionFunc`. If a non-nil
`error` is returned, there may be two outcomes:
- If the error fulfills `cli.ExitCoder`, then `os.Exit` will be called
automatically
- Else the error is bubbled up and returned from `App.Run`
- Specifying an `Action` with the legacy return signature of
`func(*cli.Context)` will produce a deprecation message to stderr
- Specifying an `Action` that is not a `func` type will produce a non-zero exit
from `App.Run`
- Specifying an `Action` func that has an invalid (input) signature will
produce a non-zero exit from `App.Run`
### Deprecated
-
`cli.App.RunAndExitOnError`, which should now be done by returning an error
that fulfills `cli.ExitCoder` to `cli.App.Run`.
- the legacy signature for
`cli.App.Action` of `func(*cli.Context)`, which should now have a return
signature of `func(*cli.Context) error`, as defined by `cli.ActionFunc`.
### Fixed
- Added missing `*cli.Context.GlobalFloat64` method
## [1.14.0] - 2016-04-03 (backfilled 2016-04-25)
### Added
- Codebeat badge
- Support for categorization via `CategorizedHelp` and `Categories` on app.
### Changed
- Use `filepath.Base` instead of `path.Base` in `Name` and `HelpName`.
### Fixed
- Ensure version is not shown in help text when `HideVersion` set.
## [1.13.0] - 2016-03-06 (backfilled 2016-04-25)
### Added
- YAML file input support.
- `NArg` method on context.
## [1.12.0] - 2016-02-17 (backfilled 2016-04-25)
### Added
- Custom usage error handling.
- Custom text support in `USAGE` section of help output.
- Improved help messages for empty strings.
- AppVeyor CI configuration.
### Changed
- Removed `panic` from default help printer func.
- De-duping and optimizations.
### Fixed
- Correctly handle `Before`/`After` at command level when no subcommands.
- Case of literal `-` argument causing flag reordering.
- Environment variable hints on Windows.
- Docs updates.
## [1.11.1] - 2015-12-21 (backfilled 2016-04-25)
### Changed
- Use `path.Base` in `Name` and `HelpName`
- Export `GetName` on flag types.
### Fixed
- Flag parsing when skipping is enabled.
- Test output cleanup.
- Move completion check to account for empty input case.
## [1.11.0] - 2015-11-15 (backfilled 2016-04-25)
### Added
- Destination scan support for flags.
- Testing against `tip` in Travis CI config.
### Changed
- Go version in Travis CI config.
### Fixed
- Removed redundant tests.
- Use correct example naming in tests.
## [1.10.2] - 2015-10-29 (backfilled 2016-04-25)
### Fixed
- Remove unused var in bash completion.
## [1.10.1] - 2015-10-21 (backfilled 2016-04-25)
### Added
- Coverage and reference logos in README.
### Fixed
- Use specified values in help and version parsing.
- Only display app version and help message once.
## [1.10.0] - 2015-10-06 (backfilled 2016-04-25)
### Added
- More tests for existing functionality.
- `ArgsUsage` at app and command level for help text flexibility.
### Fixed
- Honor `HideHelp` and `HideVersion` in `App.Run`.
- Remove juvenile word from README.
## [1.9.0] - 2015-09-08 (backfilled 2016-04-25)
### Added
- `FullName` on command with accompanying help output update.
- Set default `$PROG` in bash completion.
### Changed
- Docs formatting.
### Fixed
- Removed self-referential imports in tests.
## [1.8.0] - 2015-06-30 (backfilled 2016-04-25)
### Added
- Support for `Copyright` at app level.
- `Parent` func at context level to walk up context lineage.
### Fixed
- Global flag processing at top level.
## [1.7.1] - 2015-06-11 (backfilled 2016-04-25)
### Added
- Aggregate errors from `Before`/`After` funcs.
- Doc comments on flag structs.
- Include non-global flags when checking version and help.
- Travis CI config updates.
### Fixed
- Ensure slice type flags have non-nil values.
- Collect global flags from the full command hierarchy.
- Docs prose.
## [1.7.0] - 2015-05-03 (backfilled 2016-04-25)
### Changed
- `HelpPrinter` signature includes output writer.
### Fixed
- Specify go 1.1+ in docs.
- Set `Writer` when running command as app.
## [1.6.0] - 2015-03-23 (backfilled 2016-04-25)
### Added
- Multiple author support.
- `NumFlags` at context level.
- `Aliases` at command level.
### Deprecated
- `ShortName` at command level.
### Fixed
- Subcommand help output.
- Backward compatible support for deprecated `Author` and `Email` fields.
- Docs regarding `Names`/`Aliases`.
## [1.5.0] - 2015-02-20 (backfilled 2016-04-25)
### Added
- `After` hook func support at app and command level.
### Fixed
- Use parsed context when running command as subcommand.
- Docs prose.
## [1.4.1] - 2015-01-09 (backfilled 2016-04-25)
### Added
- Support for hiding `-h / --help` flags, but not `help` subcommand.
- Stop flag parsing after `--`.
### Fixed
- Help text for generic flags to specify single value.
- Use double quotes in output for defaults.
- Use `ParseInt` instead of `ParseUint` for int environment var values.
- Use `0` as base when parsing int environment var values.
## [1.4.0] - 2014-12-12 (backfilled 2016-04-25)
### Added
- Support for environment variable lookup "cascade".
- Support for `Stdout` on app for output redirection.
### Fixed
- Print command help instead of app help in `ShowCommandHelp`.
## [1.3.1] - 2014-11-13 (backfilled 2016-04-25)
### Added
- Docs and example code updates.
### Changed
- Default `-v / --version` flag made optional.
## [1.3.0] - 2014-08-10 (backfilled 2016-04-25)
### Added
- `FlagNames` at context level.
- Exposed `VersionPrinter` var for more control over version output.
- Zsh completion hook.
- `AUTHOR` section in default app help template.
- Contribution guidelines.
- `DurationFlag` type.
## [1.2.0] - 2014-08-02
### Added
- Support for environment variable defaults on flags plus tests.
## [1.1.0] - 2014-07-15
### Added
- Bash completion.
- Optional hiding of built-in help command.
- Optional skipping of flag parsing at command level.
- `Author`, `Email`, and `Compiled` metadata on app.
- `Before` hook func support at app and command level.
- `CommandNotFound` func support at app level.
- Command reference available on context.
- `GenericFlag` type.
- `Float64Flag` type.
- `BoolTFlag` type.
- `IsSet` flag helper on context.
- More flag lookup funcs at context level.
- More tests & docs.
### Changed
- Help template updates to account for presence/absence of flags.
- Separated subcommand help template.
- Exposed `HelpPrinter` var for more control over help output.
## [1.0.0] - 2013-11-01
### Added
- `help` flag in default app flag set and each command flag set.
- Custom handling of argument parsing errors.
- Command lookup by name at app level.
- `StringSliceFlag` type and supporting `StringSlice` type.
- `IntSliceFlag` type and supporting `IntSlice` type.
- Slice type flag lookups by name at context level.
- Export of app and command help functions.
- More tests & docs.
## 0.1.0 - 2013-07-22
### Added
- Initial implementation.
[Unreleased]: https://github.com/urfave/cli/compare/v1.18.0...HEAD
[1.18.0]: https://github.com/urfave/cli/compare/v1.17.0...v1.18.0
[1.17.0]: https://github.com/urfave/cli/compare/v1.16.0...v1.17.0
[1.16.0]: https://github.com/urfave/cli/compare/v1.15.0...v1.16.0
[1.15.0]: https://github.com/urfave/cli/compare/v1.14.0...v1.15.0
[1.14.0]: https://github.com/urfave/cli/compare/v1.13.0...v1.14.0
[1.13.0]: https://github.com/urfave/cli/compare/v1.12.0...v1.13.0
[1.12.0]: https://github.com/urfave/cli/compare/v1.11.1...v1.12.0
[1.11.1]: https://github.com/urfave/cli/compare/v1.11.0...v1.11.1
[1.11.0]: https://github.com/urfave/cli/compare/v1.10.2...v1.11.0
[1.10.2]: https://github.com/urfave/cli/compare/v1.10.1...v1.10.2
[1.10.1]: https://github.com/urfave/cli/compare/v1.10.0...v1.10.1
[1.10.0]: https://github.com/urfave/cli/compare/v1.9.0...v1.10.0
[1.9.0]: https://github.com/urfave/cli/compare/v1.8.0...v1.9.0
[1.8.0]: https://github.com/urfave/cli/compare/v1.7.1...v1.8.0
[1.7.1]: https://github.com/urfave/cli/compare/v1.7.0...v1.7.1
[1.7.0]: https://github.com/urfave/cli/compare/v1.6.0...v1.7.0
[1.6.0]: https://github.com/urfave/cli/compare/v1.5.0...v1.6.0
[1.5.0]: https://github.com/urfave/cli/compare/v1.4.1...v1.5.0
[1.4.1]: https://github.com/urfave/cli/compare/v1.4.0...v1.4.1
[1.4.0]: https://github.com/urfave/cli/compare/v1.3.1...v1.4.0
[1.3.1]: https://github.com/urfave/cli/compare/v1.3.0...v1.3.1
[1.3.0]: https://github.com/urfave/cli/compare/v1.2.0...v1.3.0
[1.2.0]: https://github.com/urfave/cli/compare/v1.1.0...v1.2.0
[1.1.0]: https://github.com/urfave/cli/compare/v1.0.0...v1.1.0
[1.0.0]: https://github.com/urfave/cli/compare/v0.1.0...v1.0.0
cli-1.18.0/LICENSE 0000664 0000000 0000000 00000002074 12734405620 0013363 0 ustar 00root root 0000000 0000000 MIT License
Copyright (c) 2016 Jeremy Saenz & Contributors
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
cli-1.18.0/README.md 0000664 0000000 0000000 00000073376 12734405620 0013652 0 ustar 00root root 0000000 0000000 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.
- [Overview](#overview)
- [Installation](#installation)
* [Supported platforms](#supported-platforms)
* [Using the `v2` branch](#using-the-v2-branch)
* [Pinning to the `v1` branch](#pinning-to-the-v1-branch)
- [Getting Started](#getting-started)
- [Examples](#examples)
* [Arguments](#arguments)
* [Flags](#flags)
+ [Placeholder Values](#placeholder-values)
+ [Alternate Names](#alternate-names)
+ [Values from the Environment](#values-from-the-environment)
+ [Values from alternate input sources (YAML and others)](#values-from-alternate-input-sources-yaml-and-others)
* [Subcommands](#subcommands)
* [Subcommands categories](#subcommands-categories)
* [Exit code](#exit-code)
* [Bash Completion](#bash-completion)
+ [Enabling](#enabling)
+ [Distribution](#distribution)
+ [Customization](#customization)
* [Generated Help Text](#generated-help-text)
+ [Customization](#customization-1)
* [Version Flag](#version-flag)
+ [Customization](#customization-2)
+ [Full API Example](#full-api-example)
- [Contribution Guidelines](#contribution-guidelines)
## Overview
Command line apps are usually so tiny that there is absolutely no reason why
your code should *not* be self-documenting. Things like generating help text and
parsing command flags/options should not hinder productivity when writing a
command line app.
**This is where cli comes into play.** cli makes command line programming fun,
organized, and expressive!
## Installation
Make sure you have a working Go environment. Go version 1.1+ is required for
core cli, whereas use of the [`./altsrc`](./altsrc) input extensions requires Go
version 1.2+. [See the install
instructions](http://golang.org/doc/install.html).
To install cli, simply run:
```
$ go get github.com/urfave/cli
```
Make sure your `PATH` includes to the `$GOPATH/bin` directory so your commands
can be easily used:
```
export PATH=$PATH:$GOPATH/bin
```
### Supported platforms
cli is tested against multiple versions of Go on Linux, and against the latest
released version of Go on OS X and Windows. For full details, see
[`./.travis.yml`](./.travis.yml) and [`./appveyor.yml`](./appveyor.yml).
### Using the `v2` branch
**Warning**: The `v2` branch is currently unreleased and considered unstable.
There is currently a long-lived branch named `v2` that is intended to land as
the new `master` branch once development there has settled down. The current
`master` branch (mirrored as `v1`) is being manually merged into `v2` on
an irregular human-based schedule, but generally if one wants to "upgrade" to
`v2` *now* and accept the volatility (read: "awesomeness") that comes along with
that, please use whatever version pinning of your preference, such as via
`gopkg.in`:
```
$ go get gopkg.in/urfave/cli.v2
```
``` go
...
import (
"gopkg.in/urfave/cli.v2" // imports as package "cli"
)
...
```
### Pinning to the `v1` branch
Similarly to the section above describing use of the `v2` branch, if one wants
to avoid any unexpected compatibility pains once `v2` becomes `master`, then
pinning to the `v1` branch is an acceptable option, e.g.:
```
$ go get gopkg.in/urfave/cli.v1
```
``` go
...
import (
"gopkg.in/urfave/cli.v1" // imports as package "cli"
)
...
```
## Getting Started
One of the philosophies behind cli is that an API should be playful and full of
discovery. So a cli app can be as little as one line of code in `main()`.
``` go
package main
import (
"os"
"github.com/urfave/cli"
)
func main() {
cli.NewApp().Run(os.Args)
}
```
This app will run and show help text, but is not very useful. Let's give an
action to execute and some help documentation:
``` go
package main
import (
"fmt"
"os"
"github.com/urfave/cli"
)
func main() {
app := cli.NewApp()
app.Name = "boom"
app.Usage = "make an explosive entrance"
app.Action = func(c *cli.Context) error {
fmt.Println("boom! I say!")
return nil
}
app.Run(os.Args)
}
```
Running this already gives you a ton of functionality, plus support for things
like subcommands and flags, which are covered below.
## Examples
Being a programmer can be a lonely job. Thankfully by the power of automation
that is not the case! Let's create a greeter app to fend off our demons of
loneliness!
Start by creating a directory named `greet`, and within it, add a file,
`greet.go` with the following code in it:
``` go
package main
import (
"fmt"
"os"
"github.com/urfave/cli"
)
func main() {
app := cli.NewApp()
app.Name = "greet"
app.Usage = "fight the loneliness!"
app.Action = func(c *cli.Context) error {
fmt.Println("Hello friend!")
return nil
}
app.Run(os.Args)
}
```
Install our command to the `$GOPATH/bin` directory:
```
$ go install
```
Finally run our new command:
```
$ greet
Hello friend!
```
cli also generates neat help text:
```
$ greet help
NAME:
greet - fight the loneliness!
USAGE:
greet [global options] command [command options] [arguments...]
VERSION:
0.0.0
COMMANDS:
help, h Shows a list of commands or help for one command
GLOBAL OPTIONS
--version Shows version information
```
### Arguments
You can lookup arguments by calling the `Args` function on `cli.Context`, e.g.:
``` go
package main
import (
"fmt"
"os"
"github.com/urfave/cli"
)
func main() {
app := cli.NewApp()
app.Action = func(c *cli.Context) error {
fmt.Printf("Hello %q", c.Args().Get(0))
return nil
}
app.Run(os.Args)
}
```
### Flags
Setting and querying flags is simple.
``` go
package main
import (
"fmt"
"os"
"github.com/urfave/cli"
)
func main() {
app := cli.NewApp()
app.Flags = []cli.Flag {
cli.StringFlag{
Name: "lang",
Value: "english",
Usage: "language for the greeting",
},
}
app.Action = func(c *cli.Context) error {
name := "Nefertiti"
if c.NArg() > 0 {
name = c.Args().Get(0)
}
if c.String("lang") == "spanish" {
fmt.Println("Hola", name)
} else {
fmt.Println("Hello", name)
}
return nil
}
app.Run(os.Args)
}
```
You can also set a destination variable for a flag, to which the content will be
scanned.
``` go
package main
import (
"os"
"fmt"
"github.com/urfave/cli"
)
func main() {
var language string
app := cli.NewApp()
app.Flags = []cli.Flag {
cli.StringFlag{
Name: "lang",
Value: "english",
Usage: "language for the greeting",
Destination: &language,
},
}
app.Action = func(c *cli.Context) error {
name := "someone"
if c.NArg() > 0 {
name = c.Args()[0]
}
if language == "spanish" {
fmt.Println("Hola", name)
} else {
fmt.Println("Hello", name)
}
return nil
}
app.Run(os.Args)
}
```
See full list of flags at http://godoc.org/github.com/urfave/cli
#### Placeholder Values
Sometimes it's useful to specify a flag's value within the usage string itself.
Such placeholders are indicated with back quotes.
For example this:
```go
package main
import (
"os"
"github.com/urfave/cli"
)
func main() {
app := cli.NewApp()
app.Flags = []cli.Flag{
cli.StringFlag{
Name: "config, c",
Usage: "Load configuration from `FILE`",
},
}
app.Run(os.Args)
}
```
Will result in help output like:
```
--config FILE, -c FILE Load configuration from FILE
```
Note that only the first placeholder is used. Subsequent back-quoted words will
be left as-is.
#### Alternate Names
You can set alternate (or short) names for flags by providing a comma-delimited
list for the `Name`. e.g.
``` go
package main
import (
"os"
"github.com/urfave/cli"
)
func main() {
app := cli.NewApp()
app.Flags = []cli.Flag {
cli.StringFlag{
Name: "lang, l",
Value: "english",
Usage: "language for the greeting",
},
}
app.Run(os.Args)
}
```
That flag can then be set with `--lang spanish` or `-l spanish`. Note that
giving two different forms of the same flag in the same command invocation is an
error.
#### Values from the Environment
You can also have the default value set from the environment via `EnvVar`. e.g.
``` go
package main
import (
"os"
"github.com/urfave/cli"
)
func main() {
app := cli.NewApp()
app.Flags = []cli.Flag {
cli.StringFlag{
Name: "lang, l",
Value: "english",
Usage: "language for the greeting",
EnvVar: "APP_LANG",
},
}
app.Run(os.Args)
}
```
The `EnvVar` may also be given as a comma-delimited "cascade", where the first
environment variable that resolves is used as the default.
``` go
package main
import (
"os"
"github.com/urfave/cli"
)
func main() {
app := cli.NewApp()
app.Flags = []cli.Flag {
cli.StringFlag{
Name: "lang, l",
Value: "english",
Usage: "language for the greeting",
EnvVar: "LEGACY_COMPAT_LANG,APP_LANG,LANG",
},
}
app.Run(os.Args)
}
```
#### Values from alternate input sources (YAML and others)
There is a separate package altsrc that adds support for getting flag values
from other input sources like YAML.
In order to get values for a flag from an alternate input source the following
code would be added to wrap an existing cli.Flag like below:
``` go
altsrc.NewIntFlag(cli.IntFlag{Name: "test"})
```
Initialization must also occur for these flags. Below is an example initializing
getting data from a yaml file below.
``` go
command.Before = altsrc.InitInputSourceWithContext(command.Flags, NewYamlSourceFromFlagFunc("load"))
```
The code above will use the "load" string as a flag name to get the file name of
a yaml file from the cli.Context. It will then use that file name to initialize
the yaml input source for any flags that are defined on that command. As a note
the "load" flag used would also have to be defined on the command flags in order
for this code snipped to work.
Currently only YAML files are supported but developers can add support for other
input sources by implementing the altsrc.InputSourceContext for their given
sources.
Here is a more complete sample of a command using YAML support:
``` go
package notmain
import (
"fmt"
"os"
"github.com/urfave/cli"
"github.com/urfave/cli/altsrc"
)
func main() {
app := cli.NewApp()
flags := []cli.Flag{
altsrc.NewIntFlag(cli.IntFlag{Name: "test"}),
cli.StringFlag{Name: "load"},
}
app.Action = func(c *cli.Context) error {
fmt.Println("yaml ist rad")
return nil
}
app.Before = altsrc.InitInputSourceWithContext(flags, altsrc.NewYamlSourceFromFlagFunc("load"))
app.Flags = flags
app.Run(os.Args)
}
```
### Subcommands
Subcommands can be defined for a more git-like command line app.
```go
package main
import (
"fmt"
"os"
"github.com/urfave/cli"
)
func main() {
app := cli.NewApp()
app.Commands = []cli.Command{
{
Name: "add",
Aliases: []string{"a"},
Usage: "add a task to the list",
Action: func(c *cli.Context) error {
fmt.Println("added task: ", c.Args().First())
return nil
},
},
{
Name: "complete",
Aliases: []string{"c"},
Usage: "complete a task on the list",
Action: func(c *cli.Context) error {
fmt.Println("completed task: ", c.Args().First())
return nil
},
},
{
Name: "template",
Aliases: []string{"t"},
Usage: "options for task templates",
Subcommands: []cli.Command{
{
Name: "add",
Usage: "add a new template",
Action: func(c *cli.Context) error {
fmt.Println("new task template: ", c.Args().First())
return nil
},
},
{
Name: "remove",
Usage: "remove an existing template",
Action: func(c *cli.Context) error {
fmt.Println("removed task template: ", c.Args().First())
return nil
},
},
},
},
}
app.Run(os.Args)
}
```
### Subcommands categories
For additional organization in apps that have many subcommands, you can
associate a category for each command to group them together in the help
output.
E.g.
```go
package main
import (
"os"
"github.com/urfave/cli"
)
func main() {
app := cli.NewApp()
app.Commands = []cli.Command{
{
Name: "noop",
},
{
Name: "add",
Category: "template",
},
{
Name: "remove",
Category: "template",
},
}
app.Run(os.Args)
}
```
Will include:
```
COMMANDS:
noop
Template actions:
add
remove
```
### Exit code
Calling `App.Run` will not automatically call `os.Exit`, which means that by
default the exit code will "fall through" to being `0`. An explicit exit code
may be set by returning a non-nil error that fulfills `cli.ExitCoder`, *or* a
`cli.MultiError` that includes an error that fulfills `cli.ExitCoder`, e.g.:
``` go
package main
import (
"os"
"github.com/urfave/cli"
)
func main() {
app := cli.NewApp()
app.Flags = []cli.Flag{
cli.BoolTFlag{
Name: "ginger-crouton",
Usage: "is it in the soup?",
},
}
app.Action = func(ctx *cli.Context) error {
if !ctx.Bool("ginger-crouton") {
return cli.NewExitError("it is not in the soup", 86)
}
return nil
}
app.Run(os.Args)
}
```
### Bash Completion
You can enable completion commands by setting the `EnableBashCompletion`
flag on the `App` object. By default, this setting will only auto-complete to
show an app's subcommands, but you can write your own completion methods for
the App or its subcommands.
``` go
package main
import (
"fmt"
"os"
"github.com/urfave/cli"
)
func main() {
tasks := []string{"cook", "clean", "laundry", "eat", "sleep", "code"}
app := cli.NewApp()
app.EnableBashCompletion = true
app.Commands = []cli.Command{
{
Name: "complete",
Aliases: []string{"c"},
Usage: "complete a task on the list",
Action: func(c *cli.Context) error {
fmt.Println("completed task: ", c.Args().First())
return nil
},
BashComplete: func(c *cli.Context) {
// This will complete if no args are passed
if c.NArg() > 0 {
return
}
for _, t := range tasks {
fmt.Println(t)
}
},
},
}
app.Run(os.Args)
}
```
#### Enabling
Source the `autocomplete/bash_autocomplete` file in your `.bashrc` file while
setting the `PROG` variable to the name of your program:
`PROG=myprogram source /.../cli/autocomplete/bash_autocomplete`
#### Distribution
Copy `autocomplete/bash_autocomplete` into `/etc/bash_completion.d/` and rename
it to the name of the program you wish to add autocomplete support for (or
automatically install it there if you are distributing a package). Don't forget
to source the file to make it active in the current shell.
```
sudo cp src/bash_autocomplete /etc/bash_completion.d/
source /etc/bash_completion.d/
```
Alternatively, you can just document that users should source the generic
`autocomplete/bash_autocomplete` in their bash configuration with `$PROG` set
to the name of their program (as above).
#### Customization
The default bash completion flag (`--generate-bash-completion`) is defined as
`cli.BashCompletionFlag`, and may be redefined if desired, e.g.:
``` go
package main
import (
"os"
"github.com/urfave/cli"
)
func main() {
cli.BashCompletionFlag = cli.BoolFlag{
Name: "compgen",
Hidden: true,
}
app := cli.NewApp()
app.EnableBashCompletion = true
app.Commands = []cli.Command{
{
Name: "wat",
},
}
app.Run(os.Args)
}
```
### Generated Help Text
The default help flag (`-h/--help`) is defined as `cli.HelpFlag` and is checked
by the cli internals in order to print generated help text for the app, command,
or subcommand, and break execution.
#### Customization
All of the help text generation may be customized, and at multiple levels. The
templates are exposed as variables `AppHelpTemplate`, `CommandHelpTemplate`, and
`SubcommandHelpTemplate` which may be reassigned or augmented, and full override
is possible by assigning a compatible func to the `cli.HelpPrinter` variable,
e.g.:
``` go
package main
import (
"fmt"
"io"
"os"
"github.com/urfave/cli"
)
func main() {
// EXAMPLE: Append to an existing template
cli.AppHelpTemplate = fmt.Sprintf(`%s
WEBSITE: http://awesometown.example.com
SUPPORT: support@awesometown.example.com
`, cli.AppHelpTemplate)
// EXAMPLE: Override a template
cli.AppHelpTemplate = `NAME:
{{.Name}} - {{.Usage}}
USAGE:
{{.HelpName}} {{if .VisibleFlags}}[global options]{{end}}{{if .Commands}} command
[command options]{{end}} {{if
.ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}
{{if len .Authors}}
AUTHOR(S):
{{range .Authors}}{{ . }}{{end}}
{{end}}{{if .Commands}}
COMMANDS:
{{range .Commands}}{{if not .HideHelp}} {{join .Names ", "}}{{ "\t"
}}{{.Usage}}{{ "\n" }}{{end}}{{end}}{{end}}{{if .VisibleFlags}}
GLOBAL OPTIONS:
{{range .VisibleFlags}}{{.}}
{{end}}{{end}}{{if .Copyright }}
COPYRIGHT:
{{.Copyright}}
{{end}}{{if .Version}}
VERSION:
{{.Version}}
{{end}}
`
// EXAMPLE: Replace the `HelpPrinter` func
cli.HelpPrinter = func(w io.Writer, templ string, data interface{}) {
fmt.Println("Ha HA. I pwnd the help!!1")
}
cli.NewApp().Run(os.Args)
}
```
The default flag may be customized to something other than `-h/--help` by
setting `cli.HelpFlag`, e.g.:
``` go
package main
import (
"os"
"github.com/urfave/cli"
)
func main() {
cli.HelpFlag = cli.BoolFlag{
Name: "halp, haaaaalp",
Usage: "HALP",
EnvVar: "SHOW_HALP,HALPPLZ",
}
cli.NewApp().Run(os.Args)
}
```
### Version Flag
The default version flag (`-v/--version`) is defined as `cli.VersionFlag`, which
is checked by the cli internals in order to print the `App.Version` via
`cli.VersionPrinter` and break execution.
#### Customization
The default flag may be cusomized to something other than `-v/--version` by
setting `cli.VersionFlag`, e.g.:
``` go
package main
import (
"os"
"github.com/urfave/cli"
)
func main() {
cli.VersionFlag = cli.BoolFlag{
Name: "print-version, V",
Usage: "print only the version",
}
app := cli.NewApp()
app.Name = "partay"
app.Version = "v19.99.0"
app.Run(os.Args)
}
```
Alternatively, the version printer at `cli.VersionPrinter` may be overridden, e.g.:
``` go
package main
import (
"fmt"
"os"
"github.com/urfave/cli"
)
var (
Revision = "fafafaf"
)
func main() {
cli.VersionPrinter = func(c *cli.Context) {
fmt.Printf("version=%s revision=%s\n", c.App.Version, Revision)
}
app := cli.NewApp()
app.Name = "partay"
app.Version = "v19.99.0"
app.Run(os.Args)
}
```
#### Full API Example
**Notice**: This is a contrived (functioning) example meant strictly for API
demonstration purposes. Use of one's imagination is encouraged.
``` go
package main
import (
"errors"
"flag"
"fmt"
"io"
"io/ioutil"
"os"
"time"
"github.com/urfave/cli"
)
func init() {
cli.AppHelpTemplate += "\nCUSTOMIZED: you bet ur muffins\n"
cli.CommandHelpTemplate += "\nYMMV\n"
cli.SubcommandHelpTemplate += "\nor something\n"
cli.HelpFlag = cli.BoolFlag{Name: "halp"}
cli.BashCompletionFlag = cli.BoolFlag{Name: "compgen", Hidden: true}
cli.VersionFlag = cli.BoolFlag{Name: "print-version, V"}
cli.HelpPrinter = func(w io.Writer, templ string, data interface{}) {
fmt.Fprintf(w, "best of luck to you\n")
}
cli.VersionPrinter = func(c *cli.Context) {
fmt.Fprintf(c.App.Writer, "version=%s\n", c.App.Version)
}
cli.OsExiter = func(c int) {
fmt.Fprintf(cli.ErrWriter, "refusing to exit %d\n", c)
}
cli.ErrWriter = ioutil.Discard
cli.FlagStringer = func(fl cli.Flag) string {
return fmt.Sprintf("\t\t%s", fl.GetName())
}
}
type hexWriter struct{}
func (w *hexWriter) Write(p []byte) (int, error) {
for _, b := range p {
fmt.Printf("%x", b)
}
fmt.Printf("\n")
return len(p), nil
}
type genericType struct{
s string
}
func (g *genericType) Set(value string) error {
g.s = value
return nil
}
func (g *genericType) String() string {
return g.s
}
func main() {
app := cli.NewApp()
app.Name = "kənˈtrīv"
app.Version = "v19.99.0"
app.Compiled = time.Now()
app.Authors = []cli.Author{
cli.Author{
Name: "Example Human",
Email: "human@example.com",
},
}
app.Copyright = "(c) 1999 Serious Enterprise"
app.HelpName = "contrive"
app.Usage = "demonstrate available API"
app.UsageText = "contrive - demonstrating the available API"
app.ArgsUsage = "[args and such]"
app.Commands = []cli.Command{
cli.Command{
Name: "doo",
Aliases: []string{"do"},
Category: "motion",
Usage: "do the doo",
UsageText: "doo - does the dooing",
Description: "no really, there is a lot of dooing to be done",
ArgsUsage: "[arrgh]",
Flags: []cli.Flag{
cli.BoolFlag{Name: "forever, forevvarr"},
},
Subcommands: cli.Commands{
cli.Command{
Name: "wop",
Action: wopAction,
},
},
SkipFlagParsing: false,
HideHelp: false,
Hidden: false,
HelpName: "doo!",
BashComplete: func(c *cli.Context) {
fmt.Fprintf(c.App.Writer, "--better\n")
},
Before: func(c *cli.Context) error {
fmt.Fprintf(c.App.Writer, "brace for impact\n")
return nil
},
After: func(c *cli.Context) error {
fmt.Fprintf(c.App.Writer, "did we lose anyone?\n")
return nil
},
Action: func(c *cli.Context) error {
c.Command.FullName()
c.Command.HasName("wop")
c.Command.Names()
c.Command.VisibleFlags()
fmt.Fprintf(c.App.Writer, "dodododododoodododddooooododododooo\n")
if c.Bool("forever") {
c.Command.Run(c)
}
return nil
},
OnUsageError: func(c *cli.Context, err error, isSubcommand bool) error {
fmt.Fprintf(c.App.Writer, "for shame\n")
return err
},
},
}
app.Flags = []cli.Flag{
cli.BoolFlag{Name: "fancy"},
cli.BoolTFlag{Name: "fancier"},
cli.DurationFlag{Name: "howlong, H", Value: time.Second * 3},
cli.Float64Flag{Name: "howmuch"},
cli.GenericFlag{Name: "wat", Value: &genericType{}},
cli.Int64Flag{Name: "longdistance"},
cli.Int64SliceFlag{Name: "intervals"},
cli.IntFlag{Name: "distance"},
cli.IntSliceFlag{Name: "times"},
cli.StringFlag{Name: "dance-move, d"},
cli.StringSliceFlag{Name: "names, N"},
cli.UintFlag{Name: "age"},
cli.Uint64Flag{Name: "bigage"},
}
app.EnableBashCompletion = true
app.HideHelp = false
app.HideVersion = false
app.BashComplete = func(c *cli.Context) {
fmt.Fprintf(c.App.Writer, "lipstick\nkiss\nme\nlipstick\nringo\n")
}
app.Before = func(c *cli.Context) error {
fmt.Fprintf(c.App.Writer, "HEEEERE GOES\n")
return nil
}
app.After = func(c *cli.Context) error {
fmt.Fprintf(c.App.Writer, "Phew!\n")
return nil
}
app.CommandNotFound = func(c *cli.Context, command string) {
fmt.Fprintf(c.App.Writer, "Thar be no %q here.\n", command)
}
app.OnUsageError = func(c *cli.Context, err error, isSubcommand bool) error {
if isSubcommand {
return err
}
fmt.Fprintf(c.App.Writer, "WRONG: %#v\n", err)
return nil
}
app.Action = func(c *cli.Context) error {
cli.DefaultAppComplete(c)
cli.HandleExitCoder(errors.New("not an exit coder, though"))
cli.ShowAppHelp(c)
cli.ShowCommandCompletions(c, "nope")
cli.ShowCommandHelp(c, "also-nope")
cli.ShowCompletions(c)
cli.ShowSubcommandHelp(c)
cli.ShowVersion(c)
categories := c.App.Categories()
categories.AddCommand("sounds", cli.Command{
Name: "bloop",
})
for _, category := range c.App.Categories() {
fmt.Fprintf(c.App.Writer, "%s\n", category.Name)
fmt.Fprintf(c.App.Writer, "%#v\n", category.Commands)
fmt.Fprintf(c.App.Writer, "%#v\n", category.VisibleCommands())
}
fmt.Printf("%#v\n", c.App.Command("doo"))
if c.Bool("infinite") {
c.App.Run([]string{"app", "doo", "wop"})
}
if c.Bool("forevar") {
c.App.RunAsSubcommand(c)
}
c.App.Setup()
fmt.Printf("%#v\n", c.App.VisibleCategories())
fmt.Printf("%#v\n", c.App.VisibleCommands())
fmt.Printf("%#v\n", c.App.VisibleFlags())
fmt.Printf("%#v\n", c.Args().First())
if len(c.Args()) > 0 {
fmt.Printf("%#v\n", c.Args()[1])
}
fmt.Printf("%#v\n", c.Args().Present())
fmt.Printf("%#v\n", c.Args().Tail())
set := flag.NewFlagSet("contrive", 0)
nc := cli.NewContext(c.App, set, c)
fmt.Printf("%#v\n", nc.Args())
fmt.Printf("%#v\n", nc.Bool("nope"))
fmt.Printf("%#v\n", nc.BoolT("nerp"))
fmt.Printf("%#v\n", nc.Duration("howlong"))
fmt.Printf("%#v\n", nc.Float64("hay"))
fmt.Printf("%#v\n", nc.Generic("bloop"))
fmt.Printf("%#v\n", nc.Int64("bonk"))
fmt.Printf("%#v\n", nc.Int64Slice("burnks"))
fmt.Printf("%#v\n", nc.Int("bips"))
fmt.Printf("%#v\n", nc.IntSlice("blups"))
fmt.Printf("%#v\n", nc.String("snurt"))
fmt.Printf("%#v\n", nc.StringSlice("snurkles"))
fmt.Printf("%#v\n", nc.Uint("flub"))
fmt.Printf("%#v\n", nc.Uint64("florb"))
fmt.Printf("%#v\n", nc.GlobalBool("global-nope"))
fmt.Printf("%#v\n", nc.GlobalBoolT("global-nerp"))
fmt.Printf("%#v\n", nc.GlobalDuration("global-howlong"))
fmt.Printf("%#v\n", nc.GlobalFloat64("global-hay"))
fmt.Printf("%#v\n", nc.GlobalGeneric("global-bloop"))
fmt.Printf("%#v\n", nc.GlobalInt("global-bips"))
fmt.Printf("%#v\n", nc.GlobalIntSlice("global-blups"))
fmt.Printf("%#v\n", nc.GlobalString("global-snurt"))
fmt.Printf("%#v\n", nc.GlobalStringSlice("global-snurkles"))
fmt.Printf("%#v\n", nc.FlagNames())
fmt.Printf("%#v\n", nc.GlobalFlagNames())
fmt.Printf("%#v\n", nc.GlobalIsSet("wat"))
fmt.Printf("%#v\n", nc.GlobalSet("wat", "nope"))
fmt.Printf("%#v\n", nc.NArg())
fmt.Printf("%#v\n", nc.NumFlags())
fmt.Printf("%#v\n", nc.Parent())
nc.Set("wat", "also-nope")
ec := cli.NewExitError("ohwell", 86)
fmt.Fprintf(c.App.Writer, "%d", ec.ExitCode())
fmt.Printf("made it!\n")
return ec
}
if os.Getenv("HEXY") != "" {
app.Writer = &hexWriter{}
app.ErrWriter = &hexWriter{}
}
app.Metadata = map[string]interface{}{
"layers": "many",
"explicable": false,
"whatever-values": 19.99,
}
app.Run(os.Args)
}
func wopAction(c *cli.Context) error {
fmt.Fprintf(c.App.Writer, ":wave: over here, eh\n")
return nil
}
```
## Contribution Guidelines
Feel free to put up a pull request to fix a bug or maybe add a feature. I will
give it a code review and make sure that it does not break backwards
compatibility. If I or any other collaborators agree that it is in line with
the vision of the project, we will work with you to get the code into
a mergeable state and merge it into the master branch.
If you have contributed something significant to the project, we will most
likely add you as a collaborator. As a collaborator you are given the ability
to merge others pull requests. It is very important that new code does not
break existing code, so be careful about what code you do choose to merge.
If you feel like you have contributed to the project but have not yet been
added as a collaborator, we probably forgot to add you, please open an issue.
cli-1.18.0/altsrc/ 0000775 0000000 0000000 00000000000 12734405620 0013643 5 ustar 00root root 0000000 0000000 cli-1.18.0/altsrc/flag.go 0000664 0000000 0000000 00000027315 12734405620 0015113 0 ustar 00root root 0000000 0000000 package altsrc
import (
"flag"
"fmt"
"os"
"strconv"
"strings"
"github.com/urfave/cli"
)
// FlagInputSourceExtension is an extension interface of cli.Flag that
// allows a value to be set on the existing parsed flags.
type FlagInputSourceExtension interface {
cli.Flag
ApplyInputSourceValue(context *cli.Context, isc InputSourceContext) error
}
// ApplyInputSourceValues iterates over all provided flags and
// executes ApplyInputSourceValue on flags implementing the
// FlagInputSourceExtension interface to initialize these flags
// to an alternate input source.
func ApplyInputSourceValues(context *cli.Context, inputSourceContext InputSourceContext, flags []cli.Flag) error {
for _, f := range flags {
inputSourceExtendedFlag, isType := f.(FlagInputSourceExtension)
if isType {
err := inputSourceExtendedFlag.ApplyInputSourceValue(context, inputSourceContext)
if err != nil {
return err
}
}
}
return nil
}
// InitInputSource is used to to setup an InputSourceContext on a cli.Command Before method. It will create a new
// input source based on the func provided. If there is no error it will then apply the new input source to any flags
// that are supported by the input source
func InitInputSource(flags []cli.Flag, createInputSource func() (InputSourceContext, error)) cli.BeforeFunc {
return func(context *cli.Context) error {
inputSource, err := createInputSource()
if err != nil {
return fmt.Errorf("Unable to create input source: inner error: \n'%v'", err.Error())
}
return ApplyInputSourceValues(context, inputSource, flags)
}
}
// InitInputSourceWithContext is used to to setup an InputSourceContext on a cli.Command Before method. It will create a new
// input source based on the func provided with potentially using existing cli.Context values to initialize itself. If there is
// no error it will then apply the new input source to any flags that are supported by the input source
func InitInputSourceWithContext(flags []cli.Flag, createInputSource func(context *cli.Context) (InputSourceContext, error)) cli.BeforeFunc {
return func(context *cli.Context) error {
inputSource, err := createInputSource(context)
if err != nil {
return fmt.Errorf("Unable to create input source with context: inner error: \n'%v'", err.Error())
}
return ApplyInputSourceValues(context, inputSource, flags)
}
}
// GenericFlag is the flag type that wraps cli.GenericFlag to allow
// for other values to be specified
type GenericFlag struct {
cli.GenericFlag
set *flag.FlagSet
}
// NewGenericFlag creates a new GenericFlag
func NewGenericFlag(flag cli.GenericFlag) *GenericFlag {
return &GenericFlag{GenericFlag: flag, set: nil}
}
// ApplyInputSourceValue applies a generic value to the flagSet if required
func (f *GenericFlag) ApplyInputSourceValue(context *cli.Context, isc InputSourceContext) error {
if f.set != nil {
if !context.IsSet(f.Name) && !isEnvVarSet(f.EnvVar) {
value, err := isc.Generic(f.GenericFlag.Name)
if err != nil {
return err
}
if value != nil {
eachName(f.Name, func(name string) {
f.set.Set(f.Name, value.String())
})
}
}
}
return nil
}
// Apply saves the flagSet for later usage then calls
// the wrapped GenericFlag.Apply
func (f *GenericFlag) Apply(set *flag.FlagSet) {
f.set = set
f.GenericFlag.Apply(set)
}
// StringSliceFlag is the flag type that wraps cli.StringSliceFlag to allow
// for other values to be specified
type StringSliceFlag struct {
cli.StringSliceFlag
set *flag.FlagSet
}
// NewStringSliceFlag creates a new StringSliceFlag
func NewStringSliceFlag(flag cli.StringSliceFlag) *StringSliceFlag {
return &StringSliceFlag{StringSliceFlag: flag, set: nil}
}
// ApplyInputSourceValue applies a StringSlice value to the flagSet if required
func (f *StringSliceFlag) ApplyInputSourceValue(context *cli.Context, isc InputSourceContext) error {
if f.set != nil {
if !context.IsSet(f.Name) && !isEnvVarSet(f.EnvVar) {
value, err := isc.StringSlice(f.StringSliceFlag.Name)
if err != nil {
return err
}
if value != nil {
var sliceValue cli.StringSlice = value
eachName(f.Name, func(name string) {
underlyingFlag := f.set.Lookup(f.Name)
if underlyingFlag != nil {
underlyingFlag.Value = &sliceValue
}
})
}
}
}
return nil
}
// Apply saves the flagSet for later usage then calls
// the wrapped StringSliceFlag.Apply
func (f *StringSliceFlag) Apply(set *flag.FlagSet) {
f.set = set
f.StringSliceFlag.Apply(set)
}
// IntSliceFlag is the flag type that wraps cli.IntSliceFlag to allow
// for other values to be specified
type IntSliceFlag struct {
cli.IntSliceFlag
set *flag.FlagSet
}
// NewIntSliceFlag creates a new IntSliceFlag
func NewIntSliceFlag(flag cli.IntSliceFlag) *IntSliceFlag {
return &IntSliceFlag{IntSliceFlag: flag, set: nil}
}
// ApplyInputSourceValue applies a IntSlice value if required
func (f *IntSliceFlag) ApplyInputSourceValue(context *cli.Context, isc InputSourceContext) error {
if f.set != nil {
if !context.IsSet(f.Name) && !isEnvVarSet(f.EnvVar) {
value, err := isc.IntSlice(f.IntSliceFlag.Name)
if err != nil {
return err
}
if value != nil {
var sliceValue cli.IntSlice = value
eachName(f.Name, func(name string) {
underlyingFlag := f.set.Lookup(f.Name)
if underlyingFlag != nil {
underlyingFlag.Value = &sliceValue
}
})
}
}
}
return nil
}
// Apply saves the flagSet for later usage then calls
// the wrapped IntSliceFlag.Apply
func (f *IntSliceFlag) Apply(set *flag.FlagSet) {
f.set = set
f.IntSliceFlag.Apply(set)
}
// BoolFlag is the flag type that wraps cli.BoolFlag to allow
// for other values to be specified
type BoolFlag struct {
cli.BoolFlag
set *flag.FlagSet
}
// NewBoolFlag creates a new BoolFlag
func NewBoolFlag(flag cli.BoolFlag) *BoolFlag {
return &BoolFlag{BoolFlag: flag, set: nil}
}
// ApplyInputSourceValue applies a Bool value to the flagSet if required
func (f *BoolFlag) ApplyInputSourceValue(context *cli.Context, isc InputSourceContext) error {
if f.set != nil {
if !context.IsSet(f.Name) && !isEnvVarSet(f.EnvVar) {
value, err := isc.Bool(f.BoolFlag.Name)
if err != nil {
return err
}
if value {
eachName(f.Name, func(name string) {
f.set.Set(f.Name, strconv.FormatBool(value))
})
}
}
}
return nil
}
// Apply saves the flagSet for later usage then calls
// the wrapped BoolFlag.Apply
func (f *BoolFlag) Apply(set *flag.FlagSet) {
f.set = set
f.BoolFlag.Apply(set)
}
// BoolTFlag is the flag type that wraps cli.BoolTFlag to allow
// for other values to be specified
type BoolTFlag struct {
cli.BoolTFlag
set *flag.FlagSet
}
// NewBoolTFlag creates a new BoolTFlag
func NewBoolTFlag(flag cli.BoolTFlag) *BoolTFlag {
return &BoolTFlag{BoolTFlag: flag, set: nil}
}
// ApplyInputSourceValue applies a BoolT value to the flagSet if required
func (f *BoolTFlag) ApplyInputSourceValue(context *cli.Context, isc InputSourceContext) error {
if f.set != nil {
if !context.IsSet(f.Name) && !isEnvVarSet(f.EnvVar) {
value, err := isc.BoolT(f.BoolTFlag.Name)
if err != nil {
return err
}
if !value {
eachName(f.Name, func(name string) {
f.set.Set(f.Name, strconv.FormatBool(value))
})
}
}
}
return nil
}
// Apply saves the flagSet for later usage then calls
// the wrapped BoolTFlag.Apply
func (f *BoolTFlag) Apply(set *flag.FlagSet) {
f.set = set
f.BoolTFlag.Apply(set)
}
// StringFlag is the flag type that wraps cli.StringFlag to allow
// for other values to be specified
type StringFlag struct {
cli.StringFlag
set *flag.FlagSet
}
// NewStringFlag creates a new StringFlag
func NewStringFlag(flag cli.StringFlag) *StringFlag {
return &StringFlag{StringFlag: flag, set: nil}
}
// ApplyInputSourceValue applies a String value to the flagSet if required
func (f *StringFlag) ApplyInputSourceValue(context *cli.Context, isc InputSourceContext) error {
if f.set != nil {
if !(context.IsSet(f.Name) || isEnvVarSet(f.EnvVar)) {
value, err := isc.String(f.StringFlag.Name)
if err != nil {
return err
}
if value != "" {
eachName(f.Name, func(name string) {
f.set.Set(f.Name, value)
})
}
}
}
return nil
}
// Apply saves the flagSet for later usage then calls
// the wrapped StringFlag.Apply
func (f *StringFlag) Apply(set *flag.FlagSet) {
f.set = set
f.StringFlag.Apply(set)
}
// IntFlag is the flag type that wraps cli.IntFlag to allow
// for other values to be specified
type IntFlag struct {
cli.IntFlag
set *flag.FlagSet
}
// NewIntFlag creates a new IntFlag
func NewIntFlag(flag cli.IntFlag) *IntFlag {
return &IntFlag{IntFlag: flag, set: nil}
}
// ApplyInputSourceValue applies a int value to the flagSet if required
func (f *IntFlag) ApplyInputSourceValue(context *cli.Context, isc InputSourceContext) error {
if f.set != nil {
if !(context.IsSet(f.Name) || isEnvVarSet(f.EnvVar)) {
value, err := isc.Int(f.IntFlag.Name)
if err != nil {
return err
}
if value > 0 {
eachName(f.Name, func(name string) {
f.set.Set(f.Name, strconv.FormatInt(int64(value), 10))
})
}
}
}
return nil
}
// Apply saves the flagSet for later usage then calls
// the wrapped IntFlag.Apply
func (f *IntFlag) Apply(set *flag.FlagSet) {
f.set = set
f.IntFlag.Apply(set)
}
// DurationFlag is the flag type that wraps cli.DurationFlag to allow
// for other values to be specified
type DurationFlag struct {
cli.DurationFlag
set *flag.FlagSet
}
// NewDurationFlag creates a new DurationFlag
func NewDurationFlag(flag cli.DurationFlag) *DurationFlag {
return &DurationFlag{DurationFlag: flag, set: nil}
}
// ApplyInputSourceValue applies a Duration value to the flagSet if required
func (f *DurationFlag) ApplyInputSourceValue(context *cli.Context, isc InputSourceContext) error {
if f.set != nil {
if !(context.IsSet(f.Name) || isEnvVarSet(f.EnvVar)) {
value, err := isc.Duration(f.DurationFlag.Name)
if err != nil {
return err
}
if value > 0 {
eachName(f.Name, func(name string) {
f.set.Set(f.Name, value.String())
})
}
}
}
return nil
}
// Apply saves the flagSet for later usage then calls
// the wrapped DurationFlag.Apply
func (f *DurationFlag) Apply(set *flag.FlagSet) {
f.set = set
f.DurationFlag.Apply(set)
}
// Float64Flag is the flag type that wraps cli.Float64Flag to allow
// for other values to be specified
type Float64Flag struct {
cli.Float64Flag
set *flag.FlagSet
}
// NewFloat64Flag creates a new Float64Flag
func NewFloat64Flag(flag cli.Float64Flag) *Float64Flag {
return &Float64Flag{Float64Flag: flag, set: nil}
}
// ApplyInputSourceValue applies a Float64 value to the flagSet if required
func (f *Float64Flag) ApplyInputSourceValue(context *cli.Context, isc InputSourceContext) error {
if f.set != nil {
if !(context.IsSet(f.Name) || isEnvVarSet(f.EnvVar)) {
value, err := isc.Float64(f.Float64Flag.Name)
if err != nil {
return err
}
if value > 0 {
floatStr := float64ToString(value)
eachName(f.Name, func(name string) {
f.set.Set(f.Name, floatStr)
})
}
}
}
return nil
}
// Apply saves the flagSet for later usage then calls
// the wrapped Float64Flag.Apply
func (f *Float64Flag) Apply(set *flag.FlagSet) {
f.set = set
f.Float64Flag.Apply(set)
}
func isEnvVarSet(envVars string) bool {
for _, envVar := range strings.Split(envVars, ",") {
envVar = strings.TrimSpace(envVar)
if envVal := os.Getenv(envVar); envVal != "" {
// TODO: Can't use this for bools as
// set means that it was true or false based on
// Bool flag type, should work for other types
if len(envVal) > 0 {
return true
}
}
}
return false
}
func float64ToString(f float64) string {
return fmt.Sprintf("%v", f)
}
func eachName(longName string, fn func(string)) {
parts := strings.Split(longName, ",")
for _, name := range parts {
name = strings.Trim(name, " ")
fn(name)
}
}
cli-1.18.0/altsrc/flag_test.go 0000664 0000000 0000000 00000022622 12734405620 0016146 0 ustar 00root root 0000000 0000000 package altsrc
import (
"flag"
"fmt"
"os"
"strings"
"testing"
"time"
"github.com/urfave/cli"
)
type testApplyInputSource struct {
Flag FlagInputSourceExtension
FlagName string
FlagSetName string
Expected string
ContextValueString string
ContextValue flag.Value
EnvVarValue string
EnvVarName string
MapValue interface{}
}
func TestGenericApplyInputSourceValue(t *testing.T) {
v := &Parser{"abc", "def"}
c := runTest(t, testApplyInputSource{
Flag: NewGenericFlag(cli.GenericFlag{Name: "test", Value: &Parser{}}),
FlagName: "test",
MapValue: v,
})
expect(t, v, c.Generic("test"))
}
func TestGenericApplyInputSourceMethodContextSet(t *testing.T) {
p := &Parser{"abc", "def"}
c := runTest(t, testApplyInputSource{
Flag: NewGenericFlag(cli.GenericFlag{Name: "test", Value: &Parser{}}),
FlagName: "test",
MapValue: &Parser{"efg", "hig"},
ContextValueString: p.String(),
})
expect(t, p, c.Generic("test"))
}
func TestGenericApplyInputSourceMethodEnvVarSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewGenericFlag(cli.GenericFlag{Name: "test", Value: &Parser{}, EnvVar: "TEST"}),
FlagName: "test",
MapValue: &Parser{"efg", "hij"},
EnvVarName: "TEST",
EnvVarValue: "abc,def",
})
expect(t, &Parser{"abc", "def"}, c.Generic("test"))
}
func TestStringSliceApplyInputSourceValue(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewStringSliceFlag(cli.StringSliceFlag{Name: "test"}),
FlagName: "test",
MapValue: []string{"hello", "world"},
})
expect(t, c.StringSlice("test"), []string{"hello", "world"})
}
func TestStringSliceApplyInputSourceMethodContextSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewStringSliceFlag(cli.StringSliceFlag{Name: "test"}),
FlagName: "test",
MapValue: []string{"hello", "world"},
ContextValueString: "ohno",
})
expect(t, c.StringSlice("test"), []string{"ohno"})
}
func TestStringSliceApplyInputSourceMethodEnvVarSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewStringSliceFlag(cli.StringSliceFlag{Name: "test", EnvVar: "TEST"}),
FlagName: "test",
MapValue: []string{"hello", "world"},
EnvVarName: "TEST",
EnvVarValue: "oh,no",
})
expect(t, c.StringSlice("test"), []string{"oh", "no"})
}
func TestIntSliceApplyInputSourceValue(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewIntSliceFlag(cli.IntSliceFlag{Name: "test"}),
FlagName: "test",
MapValue: []int{1, 2},
})
expect(t, c.IntSlice("test"), []int{1, 2})
}
func TestIntSliceApplyInputSourceMethodContextSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewIntSliceFlag(cli.IntSliceFlag{Name: "test"}),
FlagName: "test",
MapValue: []int{1, 2},
ContextValueString: "3",
})
expect(t, c.IntSlice("test"), []int{3})
}
func TestIntSliceApplyInputSourceMethodEnvVarSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewIntSliceFlag(cli.IntSliceFlag{Name: "test", EnvVar: "TEST"}),
FlagName: "test",
MapValue: []int{1, 2},
EnvVarName: "TEST",
EnvVarValue: "3,4",
})
expect(t, c.IntSlice("test"), []int{3, 4})
}
func TestBoolApplyInputSourceMethodSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewBoolFlag(cli.BoolFlag{Name: "test"}),
FlagName: "test",
MapValue: true,
})
expect(t, true, c.Bool("test"))
}
func TestBoolApplyInputSourceMethodContextSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewBoolFlag(cli.BoolFlag{Name: "test"}),
FlagName: "test",
MapValue: false,
ContextValueString: "true",
})
expect(t, true, c.Bool("test"))
}
func TestBoolApplyInputSourceMethodEnvVarSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewBoolFlag(cli.BoolFlag{Name: "test", EnvVar: "TEST"}),
FlagName: "test",
MapValue: false,
EnvVarName: "TEST",
EnvVarValue: "true",
})
expect(t, true, c.Bool("test"))
}
func TestBoolTApplyInputSourceMethodSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewBoolTFlag(cli.BoolTFlag{Name: "test"}),
FlagName: "test",
MapValue: false,
})
expect(t, false, c.BoolT("test"))
}
func TestBoolTApplyInputSourceMethodContextSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewBoolTFlag(cli.BoolTFlag{Name: "test"}),
FlagName: "test",
MapValue: true,
ContextValueString: "false",
})
expect(t, false, c.BoolT("test"))
}
func TestBoolTApplyInputSourceMethodEnvVarSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewBoolTFlag(cli.BoolTFlag{Name: "test", EnvVar: "TEST"}),
FlagName: "test",
MapValue: true,
EnvVarName: "TEST",
EnvVarValue: "false",
})
expect(t, false, c.BoolT("test"))
}
func TestStringApplyInputSourceMethodSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewStringFlag(cli.StringFlag{Name: "test"}),
FlagName: "test",
MapValue: "hello",
})
expect(t, "hello", c.String("test"))
}
func TestStringApplyInputSourceMethodContextSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewStringFlag(cli.StringFlag{Name: "test"}),
FlagName: "test",
MapValue: "hello",
ContextValueString: "goodbye",
})
expect(t, "goodbye", c.String("test"))
}
func TestStringApplyInputSourceMethodEnvVarSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewStringFlag(cli.StringFlag{Name: "test", EnvVar: "TEST"}),
FlagName: "test",
MapValue: "hello",
EnvVarName: "TEST",
EnvVarValue: "goodbye",
})
expect(t, "goodbye", c.String("test"))
}
func TestIntApplyInputSourceMethodSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewIntFlag(cli.IntFlag{Name: "test"}),
FlagName: "test",
MapValue: 15,
})
expect(t, 15, c.Int("test"))
}
func TestIntApplyInputSourceMethodContextSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewIntFlag(cli.IntFlag{Name: "test"}),
FlagName: "test",
MapValue: 15,
ContextValueString: "7",
})
expect(t, 7, c.Int("test"))
}
func TestIntApplyInputSourceMethodEnvVarSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewIntFlag(cli.IntFlag{Name: "test", EnvVar: "TEST"}),
FlagName: "test",
MapValue: 15,
EnvVarName: "TEST",
EnvVarValue: "12",
})
expect(t, 12, c.Int("test"))
}
func TestDurationApplyInputSourceMethodSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewDurationFlag(cli.DurationFlag{Name: "test"}),
FlagName: "test",
MapValue: time.Duration(30 * time.Second),
})
expect(t, time.Duration(30*time.Second), c.Duration("test"))
}
func TestDurationApplyInputSourceMethodContextSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewDurationFlag(cli.DurationFlag{Name: "test"}),
FlagName: "test",
MapValue: time.Duration(30 * time.Second),
ContextValueString: time.Duration(15 * time.Second).String(),
})
expect(t, time.Duration(15*time.Second), c.Duration("test"))
}
func TestDurationApplyInputSourceMethodEnvVarSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewDurationFlag(cli.DurationFlag{Name: "test", EnvVar: "TEST"}),
FlagName: "test",
MapValue: time.Duration(30 * time.Second),
EnvVarName: "TEST",
EnvVarValue: time.Duration(15 * time.Second).String(),
})
expect(t, time.Duration(15*time.Second), c.Duration("test"))
}
func TestFloat64ApplyInputSourceMethodSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewFloat64Flag(cli.Float64Flag{Name: "test"}),
FlagName: "test",
MapValue: 1.3,
})
expect(t, 1.3, c.Float64("test"))
}
func TestFloat64ApplyInputSourceMethodContextSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewFloat64Flag(cli.Float64Flag{Name: "test"}),
FlagName: "test",
MapValue: 1.3,
ContextValueString: fmt.Sprintf("%v", 1.4),
})
expect(t, 1.4, c.Float64("test"))
}
func TestFloat64ApplyInputSourceMethodEnvVarSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewFloat64Flag(cli.Float64Flag{Name: "test", EnvVar: "TEST"}),
FlagName: "test",
MapValue: 1.3,
EnvVarName: "TEST",
EnvVarValue: fmt.Sprintf("%v", 1.4),
})
expect(t, 1.4, c.Float64("test"))
}
func runTest(t *testing.T, test testApplyInputSource) *cli.Context {
inputSource := &MapInputSource{valueMap: map[interface{}]interface{}{test.FlagName: test.MapValue}}
set := flag.NewFlagSet(test.FlagSetName, flag.ContinueOnError)
c := cli.NewContext(nil, set, nil)
if test.EnvVarName != "" && test.EnvVarValue != "" {
os.Setenv(test.EnvVarName, test.EnvVarValue)
defer os.Setenv(test.EnvVarName, "")
}
test.Flag.Apply(set)
if test.ContextValue != nil {
flag := set.Lookup(test.FlagName)
flag.Value = test.ContextValue
}
if test.ContextValueString != "" {
set.Set(test.FlagName, test.ContextValueString)
}
test.Flag.ApplyInputSourceValue(c, inputSource)
return c
}
type Parser [2]string
func (p *Parser) Set(value string) error {
parts := strings.Split(value, ",")
if len(parts) != 2 {
return fmt.Errorf("invalid format")
}
(*p)[0] = parts[0]
(*p)[1] = parts[1]
return nil
}
func (p *Parser) String() string {
return fmt.Sprintf("%s,%s", p[0], p[1])
}
cli-1.18.0/altsrc/helpers_test.go 0000664 0000000 0000000 00000000653 12734405620 0016677 0 ustar 00root root 0000000 0000000 package altsrc
import (
"reflect"
"testing"
)
func expect(t *testing.T, a interface{}, b interface{}) {
if !reflect.DeepEqual(b, a) {
t.Errorf("Expected %#v (type %v) - Got %#v (type %v)", b, reflect.TypeOf(b), a, reflect.TypeOf(a))
}
}
func refute(t *testing.T, a interface{}, b interface{}) {
if a == b {
t.Errorf("Did not expect %v (type %v) - Got %v (type %v)", b, reflect.TypeOf(b), a, reflect.TypeOf(a))
}
}
cli-1.18.0/altsrc/input_source_context.go 0000664 0000000 0000000 00000001045 12734405620 0020455 0 ustar 00root root 0000000 0000000 package altsrc
import (
"time"
"github.com/urfave/cli"
)
// InputSourceContext is an interface used to allow
// other input sources to be implemented as needed.
type InputSourceContext interface {
Int(name string) (int, error)
Duration(name string) (time.Duration, error)
Float64(name string) (float64, error)
String(name string) (string, error)
StringSlice(name string) ([]string, error)
IntSlice(name string) ([]int, error)
Generic(name string) (cli.Generic, error)
Bool(name string) (bool, error)
BoolT(name string) (bool, error)
}
cli-1.18.0/altsrc/map_input_source.go 0000664 0000000 0000000 00000015713 12734405620 0017555 0 ustar 00root root 0000000 0000000 package altsrc
import (
"fmt"
"reflect"
"strings"
"time"
"github.com/urfave/cli"
)
// MapInputSource implements InputSourceContext to return
// data from the map that is loaded.
type MapInputSource struct {
valueMap map[interface{}]interface{}
}
// nestedVal checks if the name has '.' delimiters.
// If so, it tries to traverse the tree by the '.' delimited sections to find
// a nested value for the key.
func nestedVal(name string, tree map[interface{}]interface{}) (interface{}, bool) {
if sections := strings.Split(name, "."); len(sections) > 1 {
node := tree
for _, section := range sections[:len(sections)-1] {
if child, ok := node[section]; !ok {
return nil, false
} else {
if ctype, ok := child.(map[interface{}]interface{}); !ok {
return nil, false
} else {
node = ctype
}
}
}
if val, ok := node[sections[len(sections)-1]]; ok {
return val, true
}
}
return nil, false
}
// Int returns an int from the map if it exists otherwise returns 0
func (fsm *MapInputSource) Int(name string) (int, error) {
otherGenericValue, exists := fsm.valueMap[name]
if exists {
otherValue, isType := otherGenericValue.(int)
if !isType {
return 0, incorrectTypeForFlagError(name, "int", otherGenericValue)
}
return otherValue, nil
}
nestedGenericValue, exists := nestedVal(name, fsm.valueMap)
if exists {
otherValue, isType := nestedGenericValue.(int)
if !isType {
return 0, incorrectTypeForFlagError(name, "int", nestedGenericValue)
}
return otherValue, nil
}
return 0, nil
}
// Duration returns a duration from the map if it exists otherwise returns 0
func (fsm *MapInputSource) Duration(name string) (time.Duration, error) {
otherGenericValue, exists := fsm.valueMap[name]
if exists {
otherValue, isType := otherGenericValue.(time.Duration)
if !isType {
return 0, incorrectTypeForFlagError(name, "duration", otherGenericValue)
}
return otherValue, nil
}
nestedGenericValue, exists := nestedVal(name, fsm.valueMap)
if exists {
otherValue, isType := nestedGenericValue.(time.Duration)
if !isType {
return 0, incorrectTypeForFlagError(name, "duration", nestedGenericValue)
}
return otherValue, nil
}
return 0, nil
}
// Float64 returns an float64 from the map if it exists otherwise returns 0
func (fsm *MapInputSource) Float64(name string) (float64, error) {
otherGenericValue, exists := fsm.valueMap[name]
if exists {
otherValue, isType := otherGenericValue.(float64)
if !isType {
return 0, incorrectTypeForFlagError(name, "float64", otherGenericValue)
}
return otherValue, nil
}
nestedGenericValue, exists := nestedVal(name, fsm.valueMap)
if exists {
otherValue, isType := nestedGenericValue.(float64)
if !isType {
return 0, incorrectTypeForFlagError(name, "float64", nestedGenericValue)
}
return otherValue, nil
}
return 0, nil
}
// String returns a string from the map if it exists otherwise returns an empty string
func (fsm *MapInputSource) String(name string) (string, error) {
otherGenericValue, exists := fsm.valueMap[name]
if exists {
otherValue, isType := otherGenericValue.(string)
if !isType {
return "", incorrectTypeForFlagError(name, "string", otherGenericValue)
}
return otherValue, nil
}
nestedGenericValue, exists := nestedVal(name, fsm.valueMap)
if exists {
otherValue, isType := nestedGenericValue.(string)
if !isType {
return "", incorrectTypeForFlagError(name, "string", nestedGenericValue)
}
return otherValue, nil
}
return "", nil
}
// StringSlice returns an []string from the map if it exists otherwise returns nil
func (fsm *MapInputSource) StringSlice(name string) ([]string, error) {
otherGenericValue, exists := fsm.valueMap[name]
if exists {
otherValue, isType := otherGenericValue.([]string)
if !isType {
return nil, incorrectTypeForFlagError(name, "[]string", otherGenericValue)
}
return otherValue, nil
}
nestedGenericValue, exists := nestedVal(name, fsm.valueMap)
if exists {
otherValue, isType := nestedGenericValue.([]string)
if !isType {
return nil, incorrectTypeForFlagError(name, "[]string", nestedGenericValue)
}
return otherValue, nil
}
return nil, nil
}
// IntSlice returns an []int from the map if it exists otherwise returns nil
func (fsm *MapInputSource) IntSlice(name string) ([]int, error) {
otherGenericValue, exists := fsm.valueMap[name]
if exists {
otherValue, isType := otherGenericValue.([]int)
if !isType {
return nil, incorrectTypeForFlagError(name, "[]int", otherGenericValue)
}
return otherValue, nil
}
nestedGenericValue, exists := nestedVal(name, fsm.valueMap)
if exists {
otherValue, isType := nestedGenericValue.([]int)
if !isType {
return nil, incorrectTypeForFlagError(name, "[]int", nestedGenericValue)
}
return otherValue, nil
}
return nil, nil
}
// Generic returns an cli.Generic from the map if it exists otherwise returns nil
func (fsm *MapInputSource) Generic(name string) (cli.Generic, error) {
otherGenericValue, exists := fsm.valueMap[name]
if exists {
otherValue, isType := otherGenericValue.(cli.Generic)
if !isType {
return nil, incorrectTypeForFlagError(name, "cli.Generic", otherGenericValue)
}
return otherValue, nil
}
nestedGenericValue, exists := nestedVal(name, fsm.valueMap)
if exists {
otherValue, isType := nestedGenericValue.(cli.Generic)
if !isType {
return nil, incorrectTypeForFlagError(name, "cli.Generic", nestedGenericValue)
}
return otherValue, nil
}
return nil, nil
}
// Bool returns an bool from the map otherwise returns false
func (fsm *MapInputSource) Bool(name string) (bool, error) {
otherGenericValue, exists := fsm.valueMap[name]
if exists {
otherValue, isType := otherGenericValue.(bool)
if !isType {
return false, incorrectTypeForFlagError(name, "bool", otherGenericValue)
}
return otherValue, nil
}
nestedGenericValue, exists := nestedVal(name, fsm.valueMap)
if exists {
otherValue, isType := nestedGenericValue.(bool)
if !isType {
return false, incorrectTypeForFlagError(name, "bool", nestedGenericValue)
}
return otherValue, nil
}
return false, nil
}
// BoolT returns an bool from the map otherwise returns true
func (fsm *MapInputSource) BoolT(name string) (bool, error) {
otherGenericValue, exists := fsm.valueMap[name]
if exists {
otherValue, isType := otherGenericValue.(bool)
if !isType {
return true, incorrectTypeForFlagError(name, "bool", otherGenericValue)
}
return otherValue, nil
}
nestedGenericValue, exists := nestedVal(name, fsm.valueMap)
if exists {
otherValue, isType := nestedGenericValue.(bool)
if !isType {
return true, incorrectTypeForFlagError(name, "bool", nestedGenericValue)
}
return otherValue, nil
}
return true, nil
}
func incorrectTypeForFlagError(name, expectedTypeName string, value interface{}) error {
valueType := reflect.TypeOf(value)
valueTypeName := ""
if valueType != nil {
valueTypeName = valueType.Name()
}
return fmt.Errorf("Mismatched type for flag '%s'. Expected '%s' but actual is '%s'", name, expectedTypeName, valueTypeName)
}
cli-1.18.0/altsrc/yaml_command_test.go 0000664 0000000 0000000 00000017677 12734405620 0017713 0 ustar 00root root 0000000 0000000 // Disabling building of yaml support in cases where golang is 1.0 or 1.1
// as the encoding library is not implemented or supported.
// +build go1.2
package altsrc
import (
"flag"
"io/ioutil"
"os"
"testing"
"github.com/urfave/cli"
)
func TestCommandYamlFileTest(t *testing.T) {
app := cli.NewApp()
set := flag.NewFlagSet("test", 0)
ioutil.WriteFile("current.yaml", []byte("test: 15"), 0666)
defer os.Remove("current.yaml")
test := []string{"test-cmd", "--load", "current.yaml"}
set.Parse(test)
c := cli.NewContext(app, set, nil)
command := &cli.Command{
Name: "test-cmd",
Aliases: []string{"tc"},
Usage: "this is for testing",
Description: "testing",
Action: func(c *cli.Context) error {
val := c.Int("test")
expect(t, val, 15)
return nil
},
Flags: []cli.Flag{
NewIntFlag(cli.IntFlag{Name: "test"}),
cli.StringFlag{Name: "load"}},
}
command.Before = InitInputSourceWithContext(command.Flags, NewYamlSourceFromFlagFunc("load"))
err := command.Run(c)
expect(t, err, nil)
}
func TestCommandYamlFileTestGlobalEnvVarWins(t *testing.T) {
app := cli.NewApp()
set := flag.NewFlagSet("test", 0)
ioutil.WriteFile("current.yaml", []byte("test: 15"), 0666)
defer os.Remove("current.yaml")
os.Setenv("THE_TEST", "10")
defer os.Setenv("THE_TEST", "")
test := []string{"test-cmd", "--load", "current.yaml"}
set.Parse(test)
c := cli.NewContext(app, set, nil)
command := &cli.Command{
Name: "test-cmd",
Aliases: []string{"tc"},
Usage: "this is for testing",
Description: "testing",
Action: func(c *cli.Context) error {
val := c.Int("test")
expect(t, val, 10)
return nil
},
Flags: []cli.Flag{
NewIntFlag(cli.IntFlag{Name: "test", EnvVar: "THE_TEST"}),
cli.StringFlag{Name: "load"}},
}
command.Before = InitInputSourceWithContext(command.Flags, NewYamlSourceFromFlagFunc("load"))
err := command.Run(c)
expect(t, err, nil)
}
func TestCommandYamlFileTestGlobalEnvVarWinsNested(t *testing.T) {
app := cli.NewApp()
set := flag.NewFlagSet("test", 0)
ioutil.WriteFile("current.yaml", []byte(`top:
test: 15`), 0666)
defer os.Remove("current.yaml")
os.Setenv("THE_TEST", "10")
defer os.Setenv("THE_TEST", "")
test := []string{"test-cmd", "--load", "current.yaml"}
set.Parse(test)
c := cli.NewContext(app, set, nil)
command := &cli.Command{
Name: "test-cmd",
Aliases: []string{"tc"},
Usage: "this is for testing",
Description: "testing",
Action: func(c *cli.Context) error {
val := c.Int("top.test")
expect(t, val, 10)
return nil
},
Flags: []cli.Flag{
NewIntFlag(cli.IntFlag{Name: "top.test", EnvVar: "THE_TEST"}),
cli.StringFlag{Name: "load"}},
}
command.Before = InitInputSourceWithContext(command.Flags, NewYamlSourceFromFlagFunc("load"))
err := command.Run(c)
expect(t, err, nil)
}
func TestCommandYamlFileTestSpecifiedFlagWins(t *testing.T) {
app := cli.NewApp()
set := flag.NewFlagSet("test", 0)
ioutil.WriteFile("current.yaml", []byte("test: 15"), 0666)
defer os.Remove("current.yaml")
test := []string{"test-cmd", "--load", "current.yaml", "--test", "7"}
set.Parse(test)
c := cli.NewContext(app, set, nil)
command := &cli.Command{
Name: "test-cmd",
Aliases: []string{"tc"},
Usage: "this is for testing",
Description: "testing",
Action: func(c *cli.Context) error {
val := c.Int("test")
expect(t, val, 7)
return nil
},
Flags: []cli.Flag{
NewIntFlag(cli.IntFlag{Name: "test"}),
cli.StringFlag{Name: "load"}},
}
command.Before = InitInputSourceWithContext(command.Flags, NewYamlSourceFromFlagFunc("load"))
err := command.Run(c)
expect(t, err, nil)
}
func TestCommandYamlFileTestSpecifiedFlagWinsNested(t *testing.T) {
app := cli.NewApp()
set := flag.NewFlagSet("test", 0)
ioutil.WriteFile("current.yaml", []byte(`top:
test: 15`), 0666)
defer os.Remove("current.yaml")
test := []string{"test-cmd", "--load", "current.yaml", "--top.test", "7"}
set.Parse(test)
c := cli.NewContext(app, set, nil)
command := &cli.Command{
Name: "test-cmd",
Aliases: []string{"tc"},
Usage: "this is for testing",
Description: "testing",
Action: func(c *cli.Context) error {
val := c.Int("top.test")
expect(t, val, 7)
return nil
},
Flags: []cli.Flag{
NewIntFlag(cli.IntFlag{Name: "top.test"}),
cli.StringFlag{Name: "load"}},
}
command.Before = InitInputSourceWithContext(command.Flags, NewYamlSourceFromFlagFunc("load"))
err := command.Run(c)
expect(t, err, nil)
}
func TestCommandYamlFileTestDefaultValueFileWins(t *testing.T) {
app := cli.NewApp()
set := flag.NewFlagSet("test", 0)
ioutil.WriteFile("current.yaml", []byte("test: 15"), 0666)
defer os.Remove("current.yaml")
test := []string{"test-cmd", "--load", "current.yaml"}
set.Parse(test)
c := cli.NewContext(app, set, nil)
command := &cli.Command{
Name: "test-cmd",
Aliases: []string{"tc"},
Usage: "this is for testing",
Description: "testing",
Action: func(c *cli.Context) error {
val := c.Int("test")
expect(t, val, 15)
return nil
},
Flags: []cli.Flag{
NewIntFlag(cli.IntFlag{Name: "test", Value: 7}),
cli.StringFlag{Name: "load"}},
}
command.Before = InitInputSourceWithContext(command.Flags, NewYamlSourceFromFlagFunc("load"))
err := command.Run(c)
expect(t, err, nil)
}
func TestCommandYamlFileTestDefaultValueFileWinsNested(t *testing.T) {
app := cli.NewApp()
set := flag.NewFlagSet("test", 0)
ioutil.WriteFile("current.yaml", []byte(`top:
test: 15`), 0666)
defer os.Remove("current.yaml")
test := []string{"test-cmd", "--load", "current.yaml"}
set.Parse(test)
c := cli.NewContext(app, set, nil)
command := &cli.Command{
Name: "test-cmd",
Aliases: []string{"tc"},
Usage: "this is for testing",
Description: "testing",
Action: func(c *cli.Context) error {
val := c.Int("top.test")
expect(t, val, 15)
return nil
},
Flags: []cli.Flag{
NewIntFlag(cli.IntFlag{Name: "top.test", Value: 7}),
cli.StringFlag{Name: "load"}},
}
command.Before = InitInputSourceWithContext(command.Flags, NewYamlSourceFromFlagFunc("load"))
err := command.Run(c)
expect(t, err, nil)
}
func TestCommandYamlFileFlagHasDefaultGlobalEnvYamlSetGlobalEnvWins(t *testing.T) {
app := cli.NewApp()
set := flag.NewFlagSet("test", 0)
ioutil.WriteFile("current.yaml", []byte("test: 15"), 0666)
defer os.Remove("current.yaml")
os.Setenv("THE_TEST", "11")
defer os.Setenv("THE_TEST", "")
test := []string{"test-cmd", "--load", "current.yaml"}
set.Parse(test)
c := cli.NewContext(app, set, nil)
command := &cli.Command{
Name: "test-cmd",
Aliases: []string{"tc"},
Usage: "this is for testing",
Description: "testing",
Action: func(c *cli.Context) error {
val := c.Int("test")
expect(t, val, 11)
return nil
},
Flags: []cli.Flag{
NewIntFlag(cli.IntFlag{Name: "test", Value: 7, EnvVar: "THE_TEST"}),
cli.StringFlag{Name: "load"}},
}
command.Before = InitInputSourceWithContext(command.Flags, NewYamlSourceFromFlagFunc("load"))
err := command.Run(c)
expect(t, err, nil)
}
func TestCommandYamlFileFlagHasDefaultGlobalEnvYamlSetGlobalEnvWinsNested(t *testing.T) {
app := cli.NewApp()
set := flag.NewFlagSet("test", 0)
ioutil.WriteFile("current.yaml", []byte(`top:
test: 15`), 0666)
defer os.Remove("current.yaml")
os.Setenv("THE_TEST", "11")
defer os.Setenv("THE_TEST", "")
test := []string{"test-cmd", "--load", "current.yaml"}
set.Parse(test)
c := cli.NewContext(app, set, nil)
command := &cli.Command{
Name: "test-cmd",
Aliases: []string{"tc"},
Usage: "this is for testing",
Description: "testing",
Action: func(c *cli.Context) error {
val := c.Int("top.test")
expect(t, val, 11)
return nil
},
Flags: []cli.Flag{
NewIntFlag(cli.IntFlag{Name: "top.test", Value: 7, EnvVar: "THE_TEST"}),
cli.StringFlag{Name: "load"}},
}
command.Before = InitInputSourceWithContext(command.Flags, NewYamlSourceFromFlagFunc("load"))
err := command.Run(c)
expect(t, err, nil)
}
cli-1.18.0/altsrc/yaml_file_loader.go 0000664 0000000 0000000 00000004251 12734405620 0017463 0 ustar 00root root 0000000 0000000 // Disabling building of yaml support in cases where golang is 1.0 or 1.1
// as the encoding library is not implemented or supported.
// +build go1.2
package altsrc
import (
"fmt"
"io/ioutil"
"net/http"
"net/url"
"os"
"github.com/urfave/cli"
"gopkg.in/yaml.v2"
)
type yamlSourceContext struct {
FilePath string
}
// NewYamlSourceFromFile creates a new Yaml InputSourceContext from a filepath.
func NewYamlSourceFromFile(file string) (InputSourceContext, error) {
ysc := &yamlSourceContext{FilePath: file}
var results map[interface{}]interface{}
err := readCommandYaml(ysc.FilePath, &results)
if err != nil {
return nil, fmt.Errorf("Unable to load Yaml file '%s': inner error: \n'%v'", ysc.FilePath, err.Error())
}
return &MapInputSource{valueMap: results}, nil
}
// NewYamlSourceFromFlagFunc creates a new Yaml InputSourceContext from a provided flag name and source context.
func NewYamlSourceFromFlagFunc(flagFileName string) func(context *cli.Context) (InputSourceContext, error) {
return func(context *cli.Context) (InputSourceContext, error) {
filePath := context.String(flagFileName)
return NewYamlSourceFromFile(filePath)
}
}
func readCommandYaml(filePath string, container interface{}) (err error) {
b, err := loadDataFrom(filePath)
if err != nil {
return err
}
err = yaml.Unmarshal(b, container)
if err != nil {
return err
}
err = nil
return
}
func loadDataFrom(filePath string) ([]byte, error) {
u, err := url.Parse(filePath)
if err != nil {
return nil, err
}
if u.Host != "" { // i have a host, now do i support the scheme?
switch u.Scheme {
case "http", "https":
res, err := http.Get(filePath)
if err != nil {
return nil, err
}
return ioutil.ReadAll(res.Body)
default:
return nil, fmt.Errorf("scheme of %s is unsupported", filePath)
}
} else if u.Path != "" { // i dont have a host, but I have a path. I am a local file.
if _, notFoundFileErr := os.Stat(filePath); notFoundFileErr != nil {
return nil, fmt.Errorf("Cannot read from file: '%s' because it does not exist.", filePath)
}
return ioutil.ReadFile(filePath)
} else {
return nil, fmt.Errorf("unable to determine how to load from path %s", filePath)
}
}
cli-1.18.0/app.go 0000664 0000000 0000000 00000030101 12734405620 0013455 0 ustar 00root root 0000000 0000000 package cli
import (
"fmt"
"io"
"io/ioutil"
"os"
"path/filepath"
"reflect"
"sort"
"strings"
"time"
)
var (
changeLogURL = "https://github.com/urfave/cli/blob/master/CHANGELOG.md"
appActionDeprecationURL = fmt.Sprintf("%s#deprecated-cli-app-action-signature", changeLogURL)
runAndExitOnErrorDeprecationURL = fmt.Sprintf("%s#deprecated-cli-app-runandexitonerror", changeLogURL)
contactSysadmin = "This is an error in the application. Please contact the distributor of this application if this is not you."
errNonFuncAction = NewExitError("ERROR invalid Action type. "+
fmt.Sprintf("Must be a func of type `cli.ActionFunc`. %s", contactSysadmin)+
fmt.Sprintf("See %s", appActionDeprecationURL), 2)
errInvalidActionSignature = NewExitError("ERROR invalid Action signature. "+
fmt.Sprintf("Must be `cli.ActionFunc`. %s", contactSysadmin)+
fmt.Sprintf("See %s", appActionDeprecationURL), 2)
)
// App is the main structure of a cli application. It is recommended that
// an app be created with the cli.NewApp() function
type App struct {
// The name of the program. Defaults to path.Base(os.Args[0])
Name string
// Full name of command for help, defaults to Name
HelpName string
// Description of the program.
Usage string
// Text to override the USAGE section of help
UsageText string
// Description of the program argument format.
ArgsUsage string
// Version of the program
Version string
// List of commands to execute
Commands []Command
// List of flags to parse
Flags []Flag
// Boolean to enable bash completion commands
EnableBashCompletion bool
// Boolean to hide built-in help command
HideHelp bool
// Boolean to hide built-in version flag and the VERSION section of help
HideVersion bool
// Populate on app startup, only gettable through method Categories()
categories CommandCategories
// An action to execute when the bash-completion flag is set
BashComplete BashCompleteFunc
// An action to execute before any subcommands are run, but after the context is ready
// If a non-nil error is returned, no subcommands are run
Before BeforeFunc
// An action to execute after any subcommands are run, but after the subcommand has finished
// It is run even if Action() panics
After AfterFunc
// The action to execute when no subcommands are specified
Action interface{}
// TODO: replace `Action: interface{}` with `Action: ActionFunc` once some kind
// of deprecation period has passed, maybe?
// Execute this function if the proper command cannot be found
CommandNotFound CommandNotFoundFunc
// Execute this function if an usage error occurs
OnUsageError OnUsageErrorFunc
// Compilation date
Compiled time.Time
// List of all authors who contributed
Authors []Author
// Copyright of the binary if any
Copyright string
// Name of Author (Note: Use App.Authors, this is deprecated)
Author string
// Email of Author (Note: Use App.Authors, this is deprecated)
Email string
// Writer writer to write output to
Writer io.Writer
// ErrWriter writes error output
ErrWriter io.Writer
// Other custom info
Metadata map[string]interface{}
didSetup bool
}
// Tries to find out when this binary was compiled.
// Returns the current time if it fails to find it.
func compileTime() time.Time {
info, err := os.Stat(os.Args[0])
if err != nil {
return time.Now()
}
return info.ModTime()
}
// NewApp creates a new cli Application with some reasonable defaults for Name,
// Usage, Version and Action.
func NewApp() *App {
return &App{
Name: filepath.Base(os.Args[0]),
HelpName: filepath.Base(os.Args[0]),
Usage: "A new cli application",
UsageText: "",
Version: "0.0.0",
BashComplete: DefaultAppComplete,
Action: helpCommand.Action,
Compiled: compileTime(),
Writer: os.Stdout,
}
}
// Setup runs initialization code to ensure all data structures are ready for
// `Run` or inspection prior to `Run`. It is internally called by `Run`, but
// will return early if setup has already happened.
func (a *App) Setup() {
if a.didSetup {
return
}
a.didSetup = true
if a.Author != "" || a.Email != "" {
a.Authors = append(a.Authors, Author{Name: a.Author, Email: a.Email})
}
newCmds := []Command{}
for _, c := range a.Commands {
if c.HelpName == "" {
c.HelpName = fmt.Sprintf("%s %s", a.HelpName, c.Name)
}
newCmds = append(newCmds, c)
}
a.Commands = newCmds
if a.Command(helpCommand.Name) == nil && !a.HideHelp {
a.Commands = append(a.Commands, helpCommand)
if (HelpFlag != BoolFlag{}) {
a.appendFlag(HelpFlag)
}
}
if a.EnableBashCompletion {
a.appendFlag(BashCompletionFlag)
}
if !a.HideVersion {
a.appendFlag(VersionFlag)
}
a.categories = CommandCategories{}
for _, command := range a.Commands {
a.categories = a.categories.AddCommand(command.Category, command)
}
sort.Sort(a.categories)
}
// Run is the entry point to the cli app. Parses the arguments slice and routes
// to the proper flag/args combination
func (a *App) Run(arguments []string) (err error) {
a.Setup()
// parse flags
set := flagSet(a.Name, a.Flags)
set.SetOutput(ioutil.Discard)
err = set.Parse(arguments[1:])
nerr := normalizeFlags(a.Flags, set)
context := NewContext(a, set, nil)
if nerr != nil {
fmt.Fprintln(a.Writer, nerr)
ShowAppHelp(context)
return nerr
}
if checkCompletions(context) {
return nil
}
if err != nil {
if a.OnUsageError != nil {
err := a.OnUsageError(context, err, false)
HandleExitCoder(err)
return err
}
fmt.Fprintf(a.Writer, "%s\n\n", "Incorrect Usage.")
ShowAppHelp(context)
return err
}
if !a.HideHelp && checkHelp(context) {
ShowAppHelp(context)
return nil
}
if !a.HideVersion && checkVersion(context) {
ShowVersion(context)
return nil
}
if a.After != nil {
defer func() {
if afterErr := a.After(context); afterErr != nil {
if err != nil {
err = NewMultiError(err, afterErr)
} else {
err = afterErr
}
}
}()
}
if a.Before != nil {
beforeErr := a.Before(context)
if beforeErr != nil {
fmt.Fprintf(a.Writer, "%v\n\n", beforeErr)
ShowAppHelp(context)
HandleExitCoder(beforeErr)
err = beforeErr
return err
}
}
args := context.Args()
if args.Present() {
name := args.First()
c := a.Command(name)
if c != nil {
return c.Run(context)
}
}
// Run default Action
err = HandleAction(a.Action, context)
HandleExitCoder(err)
return err
}
// DEPRECATED: Another entry point to the cli app, takes care of passing arguments and error handling
func (a *App) RunAndExitOnError() {
fmt.Fprintf(a.errWriter(),
"DEPRECATED cli.App.RunAndExitOnError. %s See %s\n",
contactSysadmin, runAndExitOnErrorDeprecationURL)
if err := a.Run(os.Args); err != nil {
fmt.Fprintln(a.errWriter(), err)
OsExiter(1)
}
}
// RunAsSubcommand invokes the subcommand given the context, parses ctx.Args() to
// generate command-specific flags
func (a *App) RunAsSubcommand(ctx *Context) (err error) {
// append help to commands
if len(a.Commands) > 0 {
if a.Command(helpCommand.Name) == nil && !a.HideHelp {
a.Commands = append(a.Commands, helpCommand)
if (HelpFlag != BoolFlag{}) {
a.appendFlag(HelpFlag)
}
}
}
newCmds := []Command{}
for _, c := range a.Commands {
if c.HelpName == "" {
c.HelpName = fmt.Sprintf("%s %s", a.HelpName, c.Name)
}
newCmds = append(newCmds, c)
}
a.Commands = newCmds
// append flags
if a.EnableBashCompletion {
a.appendFlag(BashCompletionFlag)
}
// parse flags
set := flagSet(a.Name, a.Flags)
set.SetOutput(ioutil.Discard)
err = set.Parse(ctx.Args().Tail())
nerr := normalizeFlags(a.Flags, set)
context := NewContext(a, set, ctx)
if nerr != nil {
fmt.Fprintln(a.Writer, nerr)
fmt.Fprintln(a.Writer)
if len(a.Commands) > 0 {
ShowSubcommandHelp(context)
} else {
ShowCommandHelp(ctx, context.Args().First())
}
return nerr
}
if checkCompletions(context) {
return nil
}
if err != nil {
if a.OnUsageError != nil {
err = a.OnUsageError(context, err, true)
HandleExitCoder(err)
return err
}
fmt.Fprintf(a.Writer, "%s\n\n", "Incorrect Usage.")
ShowSubcommandHelp(context)
return err
}
if len(a.Commands) > 0 {
if checkSubcommandHelp(context) {
return nil
}
} else {
if checkCommandHelp(ctx, context.Args().First()) {
return nil
}
}
if a.After != nil {
defer func() {
afterErr := a.After(context)
if afterErr != nil {
HandleExitCoder(err)
if err != nil {
err = NewMultiError(err, afterErr)
} else {
err = afterErr
}
}
}()
}
if a.Before != nil {
beforeErr := a.Before(context)
if beforeErr != nil {
HandleExitCoder(beforeErr)
err = beforeErr
return err
}
}
args := context.Args()
if args.Present() {
name := args.First()
c := a.Command(name)
if c != nil {
return c.Run(context)
}
}
// Run default Action
err = HandleAction(a.Action, context)
HandleExitCoder(err)
return err
}
// Command returns the named command on App. Returns nil if the command does not exist
func (a *App) Command(name string) *Command {
for _, c := range a.Commands {
if c.HasName(name) {
return &c
}
}
return nil
}
// Categories returns a slice containing all the categories with the commands they contain
func (a *App) Categories() CommandCategories {
return a.categories
}
// VisibleCategories returns a slice of categories and commands that are
// Hidden=false
func (a *App) VisibleCategories() []*CommandCategory {
ret := []*CommandCategory{}
for _, category := range a.categories {
if visible := func() *CommandCategory {
for _, command := range category.Commands {
if !command.Hidden {
return category
}
}
return nil
}(); visible != nil {
ret = append(ret, visible)
}
}
return ret
}
// VisibleCommands returns a slice of the Commands with Hidden=false
func (a *App) VisibleCommands() []Command {
ret := []Command{}
for _, command := range a.Commands {
if !command.Hidden {
ret = append(ret, command)
}
}
return ret
}
// VisibleFlags returns a slice of the Flags with Hidden=false
func (a *App) VisibleFlags() []Flag {
return visibleFlags(a.Flags)
}
func (a *App) hasFlag(flag Flag) bool {
for _, f := range a.Flags {
if flag == f {
return true
}
}
return false
}
func (a *App) errWriter() io.Writer {
// When the app ErrWriter is nil use the package level one.
if a.ErrWriter == nil {
return ErrWriter
}
return a.ErrWriter
}
func (a *App) appendFlag(flag Flag) {
if !a.hasFlag(flag) {
a.Flags = append(a.Flags, flag)
}
}
// Author represents someone who has contributed to a cli project.
type Author struct {
Name string // The Authors name
Email string // The Authors email
}
// String makes Author comply to the Stringer interface, to allow an easy print in the templating process
func (a Author) String() string {
e := ""
if a.Email != "" {
e = "<" + a.Email + "> "
}
return fmt.Sprintf("%v %v", a.Name, e)
}
// HandleAction uses ✧✧✧reflection✧✧✧ to figure out if the given Action is an
// ActionFunc, a func with the legacy signature for Action, or some other
// invalid thing. If it's an ActionFunc or a func with the legacy signature for
// Action, the func is run!
func HandleAction(action interface{}, context *Context) (err error) {
defer func() {
if r := recover(); r != nil {
// Try to detect a known reflection error from *this scope*, rather than
// swallowing all panics that may happen when calling an Action func.
s := fmt.Sprintf("%v", r)
if strings.HasPrefix(s, "reflect: ") && strings.Contains(s, "too many input arguments") {
err = NewExitError(fmt.Sprintf("ERROR unknown Action error: %v. See %s", r, appActionDeprecationURL), 2)
} else {
panic(r)
}
}
}()
if reflect.TypeOf(action).Kind() != reflect.Func {
return errNonFuncAction
}
vals := reflect.ValueOf(action).Call([]reflect.Value{reflect.ValueOf(context)})
if len(vals) == 0 {
fmt.Fprintf(ErrWriter,
"DEPRECATED Action signature. Must be `cli.ActionFunc`. %s See %s\n",
contactSysadmin, appActionDeprecationURL)
return nil
}
if len(vals) > 1 {
return errInvalidActionSignature
}
if retErr, ok := vals[0].Interface().(error); vals[0].IsValid() && ok {
return retErr
}
return err
}
cli-1.18.0/app_test.go 0000664 0000000 0000000 00000077060 12734405620 0014533 0 ustar 00root root 0000000 0000000 package cli
import (
"bytes"
"errors"
"flag"
"fmt"
"io"
"io/ioutil"
"os"
"reflect"
"strings"
"testing"
)
type opCounts struct {
Total, BashComplete, OnUsageError, Before, CommandNotFound, Action, After, SubCommand int
}
func ExampleApp_Run() {
// set args for examples sake
os.Args = []string{"greet", "--name", "Jeremy"}
app := NewApp()
app.Name = "greet"
app.Flags = []Flag{
StringFlag{Name: "name", Value: "bob", Usage: "a name to say"},
}
app.Action = func(c *Context) error {
fmt.Printf("Hello %v\n", c.String("name"))
return nil
}
app.UsageText = "app [first_arg] [second_arg]"
app.Author = "Harrison"
app.Email = "harrison@lolwut.com"
app.Authors = []Author{{Name: "Oliver Allen", Email: "oliver@toyshop.com"}}
app.Run(os.Args)
// Output:
// Hello Jeremy
}
func ExampleApp_Run_subcommand() {
// set args for examples sake
os.Args = []string{"say", "hi", "english", "--name", "Jeremy"}
app := NewApp()
app.Name = "say"
app.Commands = []Command{
{
Name: "hello",
Aliases: []string{"hi"},
Usage: "use it to see a description",
Description: "This is how we describe hello the function",
Subcommands: []Command{
{
Name: "english",
Aliases: []string{"en"},
Usage: "sends a greeting in english",
Description: "greets someone in english",
Flags: []Flag{
StringFlag{
Name: "name",
Value: "Bob",
Usage: "Name of the person to greet",
},
},
Action: func(c *Context) error {
fmt.Println("Hello,", c.String("name"))
return nil
},
},
},
},
}
app.Run(os.Args)
// Output:
// Hello, Jeremy
}
func ExampleApp_Run_help() {
// set args for examples sake
os.Args = []string{"greet", "h", "describeit"}
app := NewApp()
app.Name = "greet"
app.Flags = []Flag{
StringFlag{Name: "name", Value: "bob", Usage: "a name to say"},
}
app.Commands = []Command{
{
Name: "describeit",
Aliases: []string{"d"},
Usage: "use it to see a description",
Description: "This is how we describe describeit the function",
Action: func(c *Context) error {
fmt.Printf("i like to describe things")
return nil
},
},
}
app.Run(os.Args)
// Output:
// NAME:
// greet describeit - use it to see a description
//
// USAGE:
// greet describeit [arguments...]
//
// DESCRIPTION:
// This is how we describe describeit the function
}
func ExampleApp_Run_bashComplete() {
// set args for examples sake
os.Args = []string{"greet", "--generate-bash-completion"}
app := NewApp()
app.Name = "greet"
app.EnableBashCompletion = true
app.Commands = []Command{
{
Name: "describeit",
Aliases: []string{"d"},
Usage: "use it to see a description",
Description: "This is how we describe describeit the function",
Action: func(c *Context) error {
fmt.Printf("i like to describe things")
return nil
},
}, {
Name: "next",
Usage: "next example",
Description: "more stuff to see when generating bash completion",
Action: func(c *Context) error {
fmt.Printf("the next example")
return nil
},
},
}
app.Run(os.Args)
// Output:
// describeit
// d
// next
// help
// h
}
func TestApp_Run(t *testing.T) {
s := ""
app := NewApp()
app.Action = func(c *Context) error {
s = s + c.Args().First()
return nil
}
err := app.Run([]string{"command", "foo"})
expect(t, err, nil)
err = app.Run([]string{"command", "bar"})
expect(t, err, nil)
expect(t, s, "foobar")
}
var commandAppTests = []struct {
name string
expected bool
}{
{"foobar", true},
{"batbaz", true},
{"b", true},
{"f", true},
{"bat", false},
{"nothing", false},
}
func TestApp_Command(t *testing.T) {
app := NewApp()
fooCommand := Command{Name: "foobar", Aliases: []string{"f"}}
batCommand := Command{Name: "batbaz", Aliases: []string{"b"}}
app.Commands = []Command{
fooCommand,
batCommand,
}
for _, test := range commandAppTests {
expect(t, app.Command(test.name) != nil, test.expected)
}
}
func TestApp_CommandWithArgBeforeFlags(t *testing.T) {
var parsedOption, firstArg string
app := NewApp()
command := Command{
Name: "cmd",
Flags: []Flag{
StringFlag{Name: "option", Value: "", Usage: "some option"},
},
Action: func(c *Context) error {
parsedOption = c.String("option")
firstArg = c.Args().First()
return nil
},
}
app.Commands = []Command{command}
app.Run([]string{"", "cmd", "my-arg", "--option", "my-option"})
expect(t, parsedOption, "my-option")
expect(t, firstArg, "my-arg")
}
func TestApp_RunAsSubcommandParseFlags(t *testing.T) {
var context *Context
a := NewApp()
a.Commands = []Command{
{
Name: "foo",
Action: func(c *Context) error {
context = c
return nil
},
Flags: []Flag{
StringFlag{
Name: "lang",
Value: "english",
Usage: "language for the greeting",
},
},
Before: func(_ *Context) error { return nil },
},
}
a.Run([]string{"", "foo", "--lang", "spanish", "abcd"})
expect(t, context.Args().Get(0), "abcd")
expect(t, context.String("lang"), "spanish")
}
func TestApp_CommandWithFlagBeforeTerminator(t *testing.T) {
var parsedOption string
var args []string
app := NewApp()
command := Command{
Name: "cmd",
Flags: []Flag{
StringFlag{Name: "option", Value: "", Usage: "some option"},
},
Action: func(c *Context) error {
parsedOption = c.String("option")
args = c.Args()
return nil
},
}
app.Commands = []Command{command}
app.Run([]string{"", "cmd", "my-arg", "--option", "my-option", "--", "--notARealFlag"})
expect(t, parsedOption, "my-option")
expect(t, args[0], "my-arg")
expect(t, args[1], "--")
expect(t, args[2], "--notARealFlag")
}
func TestApp_CommandWithDash(t *testing.T) {
var args []string
app := NewApp()
command := Command{
Name: "cmd",
Action: func(c *Context) error {
args = c.Args()
return nil
},
}
app.Commands = []Command{command}
app.Run([]string{"", "cmd", "my-arg", "-"})
expect(t, args[0], "my-arg")
expect(t, args[1], "-")
}
func TestApp_CommandWithNoFlagBeforeTerminator(t *testing.T) {
var args []string
app := NewApp()
command := Command{
Name: "cmd",
Action: func(c *Context) error {
args = c.Args()
return nil
},
}
app.Commands = []Command{command}
app.Run([]string{"", "cmd", "my-arg", "--", "notAFlagAtAll"})
expect(t, args[0], "my-arg")
expect(t, args[1], "--")
expect(t, args[2], "notAFlagAtAll")
}
func TestApp_VisibleCommands(t *testing.T) {
app := NewApp()
app.Commands = []Command{
{
Name: "frob",
HelpName: "foo frob",
Action: func(_ *Context) error { return nil },
},
{
Name: "frib",
HelpName: "foo frib",
Hidden: true,
Action: func(_ *Context) error { return nil },
},
}
app.Setup()
expected := []Command{
app.Commands[0],
app.Commands[2], // help
}
actual := app.VisibleCommands()
expect(t, len(expected), len(actual))
for i, actualCommand := range actual {
expectedCommand := expected[i]
if expectedCommand.Action != nil {
// comparing func addresses is OK!
expect(t, fmt.Sprintf("%p", expectedCommand.Action), fmt.Sprintf("%p", actualCommand.Action))
}
// nil out funcs, as they cannot be compared
// (https://github.com/golang/go/issues/8554)
expectedCommand.Action = nil
actualCommand.Action = nil
if !reflect.DeepEqual(expectedCommand, actualCommand) {
t.Errorf("expected\n%#v\n!=\n%#v", expectedCommand, actualCommand)
}
}
}
func TestApp_Float64Flag(t *testing.T) {
var meters float64
app := NewApp()
app.Flags = []Flag{
Float64Flag{Name: "height", Value: 1.5, Usage: "Set the height, in meters"},
}
app.Action = func(c *Context) error {
meters = c.Float64("height")
return nil
}
app.Run([]string{"", "--height", "1.93"})
expect(t, meters, 1.93)
}
func TestApp_ParseSliceFlags(t *testing.T) {
var parsedOption, firstArg string
var parsedIntSlice []int
var parsedStringSlice []string
app := NewApp()
command := Command{
Name: "cmd",
Flags: []Flag{
IntSliceFlag{Name: "p", Value: &IntSlice{}, Usage: "set one or more ip addr"},
StringSliceFlag{Name: "ip", Value: &StringSlice{}, Usage: "set one or more ports to open"},
},
Action: func(c *Context) error {
parsedIntSlice = c.IntSlice("p")
parsedStringSlice = c.StringSlice("ip")
parsedOption = c.String("option")
firstArg = c.Args().First()
return nil
},
}
app.Commands = []Command{command}
app.Run([]string{"", "cmd", "my-arg", "-p", "22", "-p", "80", "-ip", "8.8.8.8", "-ip", "8.8.4.4"})
IntsEquals := func(a, b []int) bool {
if len(a) != len(b) {
return false
}
for i, v := range a {
if v != b[i] {
return false
}
}
return true
}
StrsEquals := func(a, b []string) bool {
if len(a) != len(b) {
return false
}
for i, v := range a {
if v != b[i] {
return false
}
}
return true
}
var expectedIntSlice = []int{22, 80}
var expectedStringSlice = []string{"8.8.8.8", "8.8.4.4"}
if !IntsEquals(parsedIntSlice, expectedIntSlice) {
t.Errorf("%v does not match %v", parsedIntSlice, expectedIntSlice)
}
if !StrsEquals(parsedStringSlice, expectedStringSlice) {
t.Errorf("%v does not match %v", parsedStringSlice, expectedStringSlice)
}
}
func TestApp_ParseSliceFlagsWithMissingValue(t *testing.T) {
var parsedIntSlice []int
var parsedStringSlice []string
app := NewApp()
command := Command{
Name: "cmd",
Flags: []Flag{
IntSliceFlag{Name: "a", Usage: "set numbers"},
StringSliceFlag{Name: "str", Usage: "set strings"},
},
Action: func(c *Context) error {
parsedIntSlice = c.IntSlice("a")
parsedStringSlice = c.StringSlice("str")
return nil
},
}
app.Commands = []Command{command}
app.Run([]string{"", "cmd", "my-arg", "-a", "2", "-str", "A"})
var expectedIntSlice = []int{2}
var expectedStringSlice = []string{"A"}
if parsedIntSlice[0] != expectedIntSlice[0] {
t.Errorf("%v does not match %v", parsedIntSlice[0], expectedIntSlice[0])
}
if parsedStringSlice[0] != expectedStringSlice[0] {
t.Errorf("%v does not match %v", parsedIntSlice[0], expectedIntSlice[0])
}
}
func TestApp_DefaultStdout(t *testing.T) {
app := NewApp()
if app.Writer != os.Stdout {
t.Error("Default output writer not set.")
}
}
type mockWriter struct {
written []byte
}
func (fw *mockWriter) Write(p []byte) (n int, err error) {
if fw.written == nil {
fw.written = p
} else {
fw.written = append(fw.written, p...)
}
return len(p), nil
}
func (fw *mockWriter) GetWritten() (b []byte) {
return fw.written
}
func TestApp_SetStdout(t *testing.T) {
w := &mockWriter{}
app := NewApp()
app.Name = "test"
app.Writer = w
err := app.Run([]string{"help"})
if err != nil {
t.Fatalf("Run error: %s", err)
}
if len(w.written) == 0 {
t.Error("App did not write output to desired writer.")
}
}
func TestApp_BeforeFunc(t *testing.T) {
counts := &opCounts{}
beforeError := fmt.Errorf("fail")
var err error
app := NewApp()
app.Before = func(c *Context) error {
counts.Total++
counts.Before = counts.Total
s := c.String("opt")
if s == "fail" {
return beforeError
}
return nil
}
app.Commands = []Command{
{
Name: "sub",
Action: func(c *Context) error {
counts.Total++
counts.SubCommand = counts.Total
return nil
},
},
}
app.Flags = []Flag{
StringFlag{Name: "opt"},
}
// run with the Before() func succeeding
err = app.Run([]string{"command", "--opt", "succeed", "sub"})
if err != nil {
t.Fatalf("Run error: %s", err)
}
if counts.Before != 1 {
t.Errorf("Before() not executed when expected")
}
if counts.SubCommand != 2 {
t.Errorf("Subcommand not executed when expected")
}
// reset
counts = &opCounts{}
// run with the Before() func failing
err = app.Run([]string{"command", "--opt", "fail", "sub"})
// should be the same error produced by the Before func
if err != beforeError {
t.Errorf("Run error expected, but not received")
}
if counts.Before != 1 {
t.Errorf("Before() not executed when expected")
}
if counts.SubCommand != 0 {
t.Errorf("Subcommand executed when NOT expected")
}
// reset
counts = &opCounts{}
afterError := errors.New("fail again")
app.After = func(_ *Context) error {
return afterError
}
// run with the Before() func failing, wrapped by After()
err = app.Run([]string{"command", "--opt", "fail", "sub"})
// should be the same error produced by the Before func
if _, ok := err.(MultiError); !ok {
t.Errorf("MultiError expected, but not received")
}
if counts.Before != 1 {
t.Errorf("Before() not executed when expected")
}
if counts.SubCommand != 0 {
t.Errorf("Subcommand executed when NOT expected")
}
}
func TestApp_AfterFunc(t *testing.T) {
counts := &opCounts{}
afterError := fmt.Errorf("fail")
var err error
app := NewApp()
app.After = func(c *Context) error {
counts.Total++
counts.After = counts.Total
s := c.String("opt")
if s == "fail" {
return afterError
}
return nil
}
app.Commands = []Command{
{
Name: "sub",
Action: func(c *Context) error {
counts.Total++
counts.SubCommand = counts.Total
return nil
},
},
}
app.Flags = []Flag{
StringFlag{Name: "opt"},
}
// run with the After() func succeeding
err = app.Run([]string{"command", "--opt", "succeed", "sub"})
if err != nil {
t.Fatalf("Run error: %s", err)
}
if counts.After != 2 {
t.Errorf("After() not executed when expected")
}
if counts.SubCommand != 1 {
t.Errorf("Subcommand not executed when expected")
}
// reset
counts = &opCounts{}
// run with the Before() func failing
err = app.Run([]string{"command", "--opt", "fail", "sub"})
// should be the same error produced by the Before func
if err != afterError {
t.Errorf("Run error expected, but not received")
}
if counts.After != 2 {
t.Errorf("After() not executed when expected")
}
if counts.SubCommand != 1 {
t.Errorf("Subcommand not executed when expected")
}
}
func TestAppNoHelpFlag(t *testing.T) {
oldFlag := HelpFlag
defer func() {
HelpFlag = oldFlag
}()
HelpFlag = BoolFlag{}
app := NewApp()
app.Writer = ioutil.Discard
err := app.Run([]string{"test", "-h"})
if err != flag.ErrHelp {
t.Errorf("expected error about missing help flag, but got: %s (%T)", err, err)
}
}
func TestAppHelpPrinter(t *testing.T) {
oldPrinter := HelpPrinter
defer func() {
HelpPrinter = oldPrinter
}()
var wasCalled = false
HelpPrinter = func(w io.Writer, template string, data interface{}) {
wasCalled = true
}
app := NewApp()
app.Run([]string{"-h"})
if wasCalled == false {
t.Errorf("Help printer expected to be called, but was not")
}
}
func TestApp_VersionPrinter(t *testing.T) {
oldPrinter := VersionPrinter
defer func() {
VersionPrinter = oldPrinter
}()
var wasCalled = false
VersionPrinter = func(c *Context) {
wasCalled = true
}
app := NewApp()
ctx := NewContext(app, nil, nil)
ShowVersion(ctx)
if wasCalled == false {
t.Errorf("Version printer expected to be called, but was not")
}
}
func TestApp_CommandNotFound(t *testing.T) {
counts := &opCounts{}
app := NewApp()
app.CommandNotFound = func(c *Context, command string) {
counts.Total++
counts.CommandNotFound = counts.Total
}
app.Commands = []Command{
{
Name: "bar",
Action: func(c *Context) error {
counts.Total++
counts.SubCommand = counts.Total
return nil
},
},
}
app.Run([]string{"command", "foo"})
expect(t, counts.CommandNotFound, 1)
expect(t, counts.SubCommand, 0)
expect(t, counts.Total, 1)
}
func TestApp_OrderOfOperations(t *testing.T) {
counts := &opCounts{}
resetCounts := func() { counts = &opCounts{} }
app := NewApp()
app.EnableBashCompletion = true
app.BashComplete = func(c *Context) {
counts.Total++
counts.BashComplete = counts.Total
}
app.OnUsageError = func(c *Context, err error, isSubcommand bool) error {
counts.Total++
counts.OnUsageError = counts.Total
return errors.New("hay OnUsageError")
}
beforeNoError := func(c *Context) error {
counts.Total++
counts.Before = counts.Total
return nil
}
beforeError := func(c *Context) error {
counts.Total++
counts.Before = counts.Total
return errors.New("hay Before")
}
app.Before = beforeNoError
app.CommandNotFound = func(c *Context, command string) {
counts.Total++
counts.CommandNotFound = counts.Total
}
afterNoError := func(c *Context) error {
counts.Total++
counts.After = counts.Total
return nil
}
afterError := func(c *Context) error {
counts.Total++
counts.After = counts.Total
return errors.New("hay After")
}
app.After = afterNoError
app.Commands = []Command{
{
Name: "bar",
Action: func(c *Context) error {
counts.Total++
counts.SubCommand = counts.Total
return nil
},
},
}
app.Action = func(c *Context) error {
counts.Total++
counts.Action = counts.Total
return nil
}
_ = app.Run([]string{"command", "--nope"})
expect(t, counts.OnUsageError, 1)
expect(t, counts.Total, 1)
resetCounts()
_ = app.Run([]string{"command", "--generate-bash-completion"})
expect(t, counts.BashComplete, 1)
expect(t, counts.Total, 1)
resetCounts()
oldOnUsageError := app.OnUsageError
app.OnUsageError = nil
_ = app.Run([]string{"command", "--nope"})
expect(t, counts.Total, 0)
app.OnUsageError = oldOnUsageError
resetCounts()
_ = app.Run([]string{"command", "foo"})
expect(t, counts.OnUsageError, 0)
expect(t, counts.Before, 1)
expect(t, counts.CommandNotFound, 0)
expect(t, counts.Action, 2)
expect(t, counts.After, 3)
expect(t, counts.Total, 3)
resetCounts()
app.Before = beforeError
_ = app.Run([]string{"command", "bar"})
expect(t, counts.OnUsageError, 0)
expect(t, counts.Before, 1)
expect(t, counts.After, 2)
expect(t, counts.Total, 2)
app.Before = beforeNoError
resetCounts()
app.After = nil
_ = app.Run([]string{"command", "bar"})
expect(t, counts.OnUsageError, 0)
expect(t, counts.Before, 1)
expect(t, counts.SubCommand, 2)
expect(t, counts.Total, 2)
app.After = afterNoError
resetCounts()
app.After = afterError
err := app.Run([]string{"command", "bar"})
if err == nil {
t.Fatalf("expected a non-nil error")
}
expect(t, counts.OnUsageError, 0)
expect(t, counts.Before, 1)
expect(t, counts.SubCommand, 2)
expect(t, counts.After, 3)
expect(t, counts.Total, 3)
app.After = afterNoError
resetCounts()
oldCommands := app.Commands
app.Commands = nil
_ = app.Run([]string{"command"})
expect(t, counts.OnUsageError, 0)
expect(t, counts.Before, 1)
expect(t, counts.Action, 2)
expect(t, counts.After, 3)
expect(t, counts.Total, 3)
app.Commands = oldCommands
}
func TestApp_Run_CommandWithSubcommandHasHelpTopic(t *testing.T) {
var subcommandHelpTopics = [][]string{
{"command", "foo", "--help"},
{"command", "foo", "-h"},
{"command", "foo", "help"},
}
for _, flagSet := range subcommandHelpTopics {
t.Logf("==> checking with flags %v", flagSet)
app := NewApp()
buf := new(bytes.Buffer)
app.Writer = buf
subCmdBar := Command{
Name: "bar",
Usage: "does bar things",
}
subCmdBaz := Command{
Name: "baz",
Usage: "does baz things",
}
cmd := Command{
Name: "foo",
Description: "descriptive wall of text about how it does foo things",
Subcommands: []Command{subCmdBar, subCmdBaz},
}
app.Commands = []Command{cmd}
err := app.Run(flagSet)
if err != nil {
t.Error(err)
}
output := buf.String()
t.Logf("output: %q\n", buf.Bytes())
if strings.Contains(output, "No help topic for") {
t.Errorf("expect a help topic, got none: \n%q", output)
}
for _, shouldContain := range []string{
cmd.Name, cmd.Description,
subCmdBar.Name, subCmdBar.Usage,
subCmdBaz.Name, subCmdBaz.Usage,
} {
if !strings.Contains(output, shouldContain) {
t.Errorf("want help to contain %q, did not: \n%q", shouldContain, output)
}
}
}
}
func TestApp_Run_SubcommandFullPath(t *testing.T) {
app := NewApp()
buf := new(bytes.Buffer)
app.Writer = buf
app.Name = "command"
subCmd := Command{
Name: "bar",
Usage: "does bar things",
}
cmd := Command{
Name: "foo",
Description: "foo commands",
Subcommands: []Command{subCmd},
}
app.Commands = []Command{cmd}
err := app.Run([]string{"command", "foo", "bar", "--help"})
if err != nil {
t.Error(err)
}
output := buf.String()
if !strings.Contains(output, "command foo bar - does bar things") {
t.Errorf("expected full path to subcommand: %s", output)
}
if !strings.Contains(output, "command foo bar [arguments...]") {
t.Errorf("expected full path to subcommand: %s", output)
}
}
func TestApp_Run_SubcommandHelpName(t *testing.T) {
app := NewApp()
buf := new(bytes.Buffer)
app.Writer = buf
app.Name = "command"
subCmd := Command{
Name: "bar",
HelpName: "custom",
Usage: "does bar things",
}
cmd := Command{
Name: "foo",
Description: "foo commands",
Subcommands: []Command{subCmd},
}
app.Commands = []Command{cmd}
err := app.Run([]string{"command", "foo", "bar", "--help"})
if err != nil {
t.Error(err)
}
output := buf.String()
if !strings.Contains(output, "custom - does bar things") {
t.Errorf("expected HelpName for subcommand: %s", output)
}
if !strings.Contains(output, "custom [arguments...]") {
t.Errorf("expected HelpName to subcommand: %s", output)
}
}
func TestApp_Run_CommandHelpName(t *testing.T) {
app := NewApp()
buf := new(bytes.Buffer)
app.Writer = buf
app.Name = "command"
subCmd := Command{
Name: "bar",
Usage: "does bar things",
}
cmd := Command{
Name: "foo",
HelpName: "custom",
Description: "foo commands",
Subcommands: []Command{subCmd},
}
app.Commands = []Command{cmd}
err := app.Run([]string{"command", "foo", "bar", "--help"})
if err != nil {
t.Error(err)
}
output := buf.String()
if !strings.Contains(output, "command foo bar - does bar things") {
t.Errorf("expected full path to subcommand: %s", output)
}
if !strings.Contains(output, "command foo bar [arguments...]") {
t.Errorf("expected full path to subcommand: %s", output)
}
}
func TestApp_Run_CommandSubcommandHelpName(t *testing.T) {
app := NewApp()
buf := new(bytes.Buffer)
app.Writer = buf
app.Name = "base"
subCmd := Command{
Name: "bar",
HelpName: "custom",
Usage: "does bar things",
}
cmd := Command{
Name: "foo",
Description: "foo commands",
Subcommands: []Command{subCmd},
}
app.Commands = []Command{cmd}
err := app.Run([]string{"command", "foo", "--help"})
if err != nil {
t.Error(err)
}
output := buf.String()
if !strings.Contains(output, "base foo - foo commands") {
t.Errorf("expected full path to subcommand: %s", output)
}
if !strings.Contains(output, "base foo command [command options] [arguments...]") {
t.Errorf("expected full path to subcommand: %s", output)
}
}
func TestApp_Run_Help(t *testing.T) {
var helpArguments = [][]string{{"boom", "--help"}, {"boom", "-h"}, {"boom", "help"}}
for _, args := range helpArguments {
buf := new(bytes.Buffer)
t.Logf("==> checking with arguments %v", args)
app := NewApp()
app.Name = "boom"
app.Usage = "make an explosive entrance"
app.Writer = buf
app.Action = func(c *Context) error {
buf.WriteString("boom I say!")
return nil
}
err := app.Run(args)
if err != nil {
t.Error(err)
}
output := buf.String()
t.Logf("output: %q\n", buf.Bytes())
if !strings.Contains(output, "boom - make an explosive entrance") {
t.Errorf("want help to contain %q, did not: \n%q", "boom - make an explosive entrance", output)
}
}
}
func TestApp_Run_Version(t *testing.T) {
var versionArguments = [][]string{{"boom", "--version"}, {"boom", "-v"}}
for _, args := range versionArguments {
buf := new(bytes.Buffer)
t.Logf("==> checking with arguments %v", args)
app := NewApp()
app.Name = "boom"
app.Usage = "make an explosive entrance"
app.Version = "0.1.0"
app.Writer = buf
app.Action = func(c *Context) error {
buf.WriteString("boom I say!")
return nil
}
err := app.Run(args)
if err != nil {
t.Error(err)
}
output := buf.String()
t.Logf("output: %q\n", buf.Bytes())
if !strings.Contains(output, "0.1.0") {
t.Errorf("want version to contain %q, did not: \n%q", "0.1.0", output)
}
}
}
func TestApp_Run_Categories(t *testing.T) {
app := NewApp()
app.Name = "categories"
app.HideHelp = true
app.Commands = []Command{
{
Name: "command1",
Category: "1",
},
{
Name: "command2",
Category: "1",
},
{
Name: "command3",
Category: "2",
},
}
buf := new(bytes.Buffer)
app.Writer = buf
app.Run([]string{"categories"})
expect := CommandCategories{
&CommandCategory{
Name: "1",
Commands: []Command{
app.Commands[0],
app.Commands[1],
},
},
&CommandCategory{
Name: "2",
Commands: []Command{
app.Commands[2],
},
},
}
if !reflect.DeepEqual(app.Categories(), expect) {
t.Fatalf("expected categories %#v, to equal %#v", app.Categories(), expect)
}
output := buf.String()
t.Logf("output: %q\n", buf.Bytes())
if !strings.Contains(output, "1:\n command1") {
t.Errorf("want buffer to include category %q, did not: \n%q", "1:\n command1", output)
}
}
func TestApp_VisibleCategories(t *testing.T) {
app := NewApp()
app.Name = "visible-categories"
app.HideHelp = true
app.Commands = []Command{
{
Name: "command1",
Category: "1",
HelpName: "foo command1",
Hidden: true,
},
{
Name: "command2",
Category: "2",
HelpName: "foo command2",
},
{
Name: "command3",
Category: "3",
HelpName: "foo command3",
},
}
expected := []*CommandCategory{
{
Name: "2",
Commands: []Command{
app.Commands[1],
},
},
{
Name: "3",
Commands: []Command{
app.Commands[2],
},
},
}
app.Setup()
expect(t, expected, app.VisibleCategories())
app = NewApp()
app.Name = "visible-categories"
app.HideHelp = true
app.Commands = []Command{
{
Name: "command1",
Category: "1",
HelpName: "foo command1",
Hidden: true,
},
{
Name: "command2",
Category: "2",
HelpName: "foo command2",
Hidden: true,
},
{
Name: "command3",
Category: "3",
HelpName: "foo command3",
},
}
expected = []*CommandCategory{
{
Name: "3",
Commands: []Command{
app.Commands[2],
},
},
}
app.Setup()
expect(t, expected, app.VisibleCategories())
app = NewApp()
app.Name = "visible-categories"
app.HideHelp = true
app.Commands = []Command{
{
Name: "command1",
Category: "1",
HelpName: "foo command1",
Hidden: true,
},
{
Name: "command2",
Category: "2",
HelpName: "foo command2",
Hidden: true,
},
{
Name: "command3",
Category: "3",
HelpName: "foo command3",
Hidden: true,
},
}
expected = []*CommandCategory{}
app.Setup()
expect(t, expected, app.VisibleCategories())
}
func TestApp_Run_DoesNotOverwriteErrorFromBefore(t *testing.T) {
app := NewApp()
app.Action = func(c *Context) error { return nil }
app.Before = func(c *Context) error { return fmt.Errorf("before error") }
app.After = func(c *Context) error { return fmt.Errorf("after error") }
err := app.Run([]string{"foo"})
if err == nil {
t.Fatalf("expected to receive error from Run, got none")
}
if !strings.Contains(err.Error(), "before error") {
t.Errorf("expected text of error from Before method, but got none in \"%v\"", err)
}
if !strings.Contains(err.Error(), "after error") {
t.Errorf("expected text of error from After method, but got none in \"%v\"", err)
}
}
func TestApp_Run_SubcommandDoesNotOverwriteErrorFromBefore(t *testing.T) {
app := NewApp()
app.Commands = []Command{
{
Subcommands: []Command{
{
Name: "sub",
},
},
Name: "bar",
Before: func(c *Context) error { return fmt.Errorf("before error") },
After: func(c *Context) error { return fmt.Errorf("after error") },
},
}
err := app.Run([]string{"foo", "bar"})
if err == nil {
t.Fatalf("expected to receive error from Run, got none")
}
if !strings.Contains(err.Error(), "before error") {
t.Errorf("expected text of error from Before method, but got none in \"%v\"", err)
}
if !strings.Contains(err.Error(), "after error") {
t.Errorf("expected text of error from After method, but got none in \"%v\"", err)
}
}
func TestApp_OnUsageError_WithWrongFlagValue(t *testing.T) {
app := NewApp()
app.Flags = []Flag{
IntFlag{Name: "flag"},
}
app.OnUsageError = func(c *Context, err error, isSubcommand bool) error {
if isSubcommand {
t.Errorf("Expect no subcommand")
}
if !strings.HasPrefix(err.Error(), "invalid value \"wrong\"") {
t.Errorf("Expect an invalid value error, but got \"%v\"", err)
}
return errors.New("intercepted: " + err.Error())
}
app.Commands = []Command{
{
Name: "bar",
},
}
err := app.Run([]string{"foo", "--flag=wrong"})
if err == nil {
t.Fatalf("expected to receive error from Run, got none")
}
if !strings.HasPrefix(err.Error(), "intercepted: invalid value") {
t.Errorf("Expect an intercepted error, but got \"%v\"", err)
}
}
func TestApp_OnUsageError_WithWrongFlagValue_ForSubcommand(t *testing.T) {
app := NewApp()
app.Flags = []Flag{
IntFlag{Name: "flag"},
}
app.OnUsageError = func(c *Context, err error, isSubcommand bool) error {
if isSubcommand {
t.Errorf("Expect subcommand")
}
if !strings.HasPrefix(err.Error(), "invalid value \"wrong\"") {
t.Errorf("Expect an invalid value error, but got \"%v\"", err)
}
return errors.New("intercepted: " + err.Error())
}
app.Commands = []Command{
{
Name: "bar",
},
}
err := app.Run([]string{"foo", "--flag=wrong", "bar"})
if err == nil {
t.Fatalf("expected to receive error from Run, got none")
}
if !strings.HasPrefix(err.Error(), "intercepted: invalid value") {
t.Errorf("Expect an intercepted error, but got \"%v\"", err)
}
}
func TestHandleAction_WithNonFuncAction(t *testing.T) {
app := NewApp()
app.Action = 42
err := HandleAction(app.Action, NewContext(app, flagSet(app.Name, app.Flags), nil))
if err == nil {
t.Fatalf("expected to receive error from Run, got none")
}
exitErr, ok := err.(*ExitError)
if !ok {
t.Fatalf("expected to receive a *ExitError")
}
if !strings.HasPrefix(exitErr.Error(), "ERROR invalid Action type") {
t.Fatalf("expected an unknown Action error, but got: %v", exitErr.Error())
}
if exitErr.ExitCode() != 2 {
t.Fatalf("expected error exit code to be 2, but got: %v", exitErr.ExitCode())
}
}
func TestHandleAction_WithInvalidFuncSignature(t *testing.T) {
app := NewApp()
app.Action = func() string { return "" }
err := HandleAction(app.Action, NewContext(app, flagSet(app.Name, app.Flags), nil))
if err == nil {
t.Fatalf("expected to receive error from Run, got none")
}
exitErr, ok := err.(*ExitError)
if !ok {
t.Fatalf("expected to receive a *ExitError")
}
if !strings.HasPrefix(exitErr.Error(), "ERROR unknown Action error") {
t.Fatalf("expected an unknown Action error, but got: %v", exitErr.Error())
}
if exitErr.ExitCode() != 2 {
t.Fatalf("expected error exit code to be 2, but got: %v", exitErr.ExitCode())
}
}
func TestHandleAction_WithInvalidFuncReturnSignature(t *testing.T) {
app := NewApp()
app.Action = func(_ *Context) (int, error) { return 0, nil }
err := HandleAction(app.Action, NewContext(app, flagSet(app.Name, app.Flags), nil))
if err == nil {
t.Fatalf("expected to receive error from Run, got none")
}
exitErr, ok := err.(*ExitError)
if !ok {
t.Fatalf("expected to receive a *ExitError")
}
if !strings.HasPrefix(exitErr.Error(), "ERROR invalid Action signature") {
t.Fatalf("expected an invalid Action signature error, but got: %v", exitErr.Error())
}
if exitErr.ExitCode() != 2 {
t.Fatalf("expected error exit code to be 2, but got: %v", exitErr.ExitCode())
}
}
func TestHandleAction_WithUnknownPanic(t *testing.T) {
defer func() { refute(t, recover(), nil) }()
var fn ActionFunc
app := NewApp()
app.Action = func(ctx *Context) error {
fn(ctx)
return nil
}
HandleAction(app.Action, NewContext(app, flagSet(app.Name, app.Flags), nil))
}
cli-1.18.0/appveyor.yml 0000664 0000000 0000000 00000000701 12734405620 0014741 0 ustar 00root root 0000000 0000000 version: "{build}"
os: Windows Server 2012 R2
clone_folder: c:\gopath\src\github.com\urfave\cli
environment:
GOPATH: C:\gopath
GOVERSION: 1.6
PYTHON: C:\Python27-x64
PYTHON_VERSION: 2.7.x
PYTHON_ARCH: 64
GFMXR_DEBUG: 1
install:
- set PATH=%GOPATH%\bin;C:\go\bin;%PATH%
- go version
- go env
- go get github.com/urfave/gfmxr/...
- go get -v -t ./...
build_script:
- python runtests vet
- python runtests test
- python runtests gfmxr
cli-1.18.0/autocomplete/ 0000775 0000000 0000000 00000000000 12734405620 0015054 5 ustar 00root root 0000000 0000000 cli-1.18.0/autocomplete/bash_autocomplete 0000664 0000000 0000000 00000000534 12734405620 0020477 0 ustar 00root root 0000000 0000000 #! /bin/bash
: ${PROG:=$(basename ${BASH_SOURCE})}
_cli_bash_autocomplete() {
local cur opts base
COMPREPLY=()
cur="${COMP_WORDS[COMP_CWORD]}"
opts=$( ${COMP_WORDS[@]:0:$COMP_CWORD} --generate-bash-completion )
COMPREPLY=( $(compgen -W "${opts}" -- ${cur}) )
return 0
}
complete -F _cli_bash_autocomplete $PROG
cli-1.18.0/autocomplete/zsh_autocomplete 0000664 0000000 0000000 00000000213 12734405620 0020360 0 ustar 00root root 0000000 0000000 autoload -U compinit && compinit
autoload -U bashcompinit && bashcompinit
script_dir=$(dirname $0)
source ${script_dir}/bash_autocomplete
cli-1.18.0/category.go 0000664 0000000 0000000 00000002101 12734405620 0014511 0 ustar 00root root 0000000 0000000 package cli
// CommandCategories is a slice of *CommandCategory.
type CommandCategories []*CommandCategory
// CommandCategory is a category containing commands.
type CommandCategory struct {
Name string
Commands Commands
}
func (c CommandCategories) Less(i, j int) bool {
return c[i].Name < c[j].Name
}
func (c CommandCategories) Len() int {
return len(c)
}
func (c CommandCategories) Swap(i, j int) {
c[i], c[j] = c[j], c[i]
}
// AddCommand adds a command to a category.
func (c CommandCategories) AddCommand(category string, command Command) CommandCategories {
for _, commandCategory := range c {
if commandCategory.Name == category {
commandCategory.Commands = append(commandCategory.Commands, command)
return c
}
}
return append(c, &CommandCategory{Name: category, Commands: []Command{command}})
}
// VisibleCommands returns a slice of the Commands with Hidden=false
func (c *CommandCategory) VisibleCommands() []Command {
ret := []Command{}
for _, command := range c.Commands {
if !command.Hidden {
ret = append(ret, command)
}
}
return ret
}
cli-1.18.0/cli.go 0000664 0000000 0000000 00000001145 12734405620 0013452 0 ustar 00root root 0000000 0000000 // Package cli provides a minimal framework for creating and organizing command line
// Go applications. cli is designed to be easy to understand and write, the most simple
// cli application can be written as follows:
// func main() {
// cli.NewApp().Run(os.Args)
// }
//
// Of course this application does not do much, so let's make this an actual application:
// func main() {
// app := cli.NewApp()
// app.Name = "greet"
// app.Usage = "say a greeting"
// app.Action = func(c *cli.Context) error {
// println("Greetings")
// }
//
// app.Run(os.Args)
// }
package cli
cli-1.18.0/command.go 0000664 0000000 0000000 00000015027 12734405620 0014325 0 ustar 00root root 0000000 0000000 package cli
import (
"fmt"
"io/ioutil"
"sort"
"strings"
)
// Command is a subcommand for a cli.App.
type Command struct {
// The name of the command
Name string
// short name of the command. Typically one character (deprecated, use `Aliases`)
ShortName string
// A list of aliases for the command
Aliases []string
// A short description of the usage of this command
Usage string
// Custom text to show on USAGE section of help
UsageText string
// A longer explanation of how the command works
Description string
// A short description of the arguments of this command
ArgsUsage string
// The category the command is part of
Category string
// The function to call when checking for bash command completions
BashComplete BashCompleteFunc
// An action to execute before any sub-subcommands are run, but after the context is ready
// If a non-nil error is returned, no sub-subcommands are run
Before BeforeFunc
// An action to execute after any subcommands are run, but after the subcommand has finished
// It is run even if Action() panics
After AfterFunc
// The function to call when this command is invoked
Action interface{}
// TODO: replace `Action: interface{}` with `Action: ActionFunc` once some kind
// of deprecation period has passed, maybe?
// Execute this function if a usage error occurs.
OnUsageError OnUsageErrorFunc
// List of child commands
Subcommands Commands
// List of flags to parse
Flags []Flag
// Treat all flags as normal arguments if true
SkipFlagParsing bool
// Boolean to hide built-in help command
HideHelp bool
// Boolean to hide this command from help or completion
Hidden bool
// Full name of command for help, defaults to full command name, including parent commands.
HelpName string
commandNamePath []string
}
// FullName returns the full name of the command.
// For subcommands this ensures that parent commands are part of the command path
func (c Command) FullName() string {
if c.commandNamePath == nil {
return c.Name
}
return strings.Join(c.commandNamePath, " ")
}
// Commands is a slice of Command
type Commands []Command
// Run invokes the command given the context, parses ctx.Args() to generate command-specific flags
func (c Command) Run(ctx *Context) (err error) {
if len(c.Subcommands) > 0 {
return c.startApp(ctx)
}
if !c.HideHelp && (HelpFlag != BoolFlag{}) {
// append help to flags
c.Flags = append(
c.Flags,
HelpFlag,
)
}
if ctx.App.EnableBashCompletion {
c.Flags = append(c.Flags, BashCompletionFlag)
}
set := flagSet(c.Name, c.Flags)
set.SetOutput(ioutil.Discard)
if !c.SkipFlagParsing {
firstFlagIndex := -1
terminatorIndex := -1
for index, arg := range ctx.Args() {
if arg == "--" {
terminatorIndex = index
break
} else if arg == "-" {
// Do nothing. A dash alone is not really a flag.
continue
} else if strings.HasPrefix(arg, "-") && firstFlagIndex == -1 {
firstFlagIndex = index
}
}
if firstFlagIndex > -1 {
args := ctx.Args()
regularArgs := make([]string, len(args[1:firstFlagIndex]))
copy(regularArgs, args[1:firstFlagIndex])
var flagArgs []string
if terminatorIndex > -1 {
flagArgs = args[firstFlagIndex:terminatorIndex]
regularArgs = append(regularArgs, args[terminatorIndex:]...)
} else {
flagArgs = args[firstFlagIndex:]
}
err = set.Parse(append(flagArgs, regularArgs...))
} else {
err = set.Parse(ctx.Args().Tail())
}
} else {
if c.SkipFlagParsing {
err = set.Parse(append([]string{"--"}, ctx.Args().Tail()...))
}
}
if err != nil {
if c.OnUsageError != nil {
err := c.OnUsageError(ctx, err, false)
HandleExitCoder(err)
return err
}
fmt.Fprintln(ctx.App.Writer, "Incorrect Usage.")
fmt.Fprintln(ctx.App.Writer)
ShowCommandHelp(ctx, c.Name)
return err
}
nerr := normalizeFlags(c.Flags, set)
if nerr != nil {
fmt.Fprintln(ctx.App.Writer, nerr)
fmt.Fprintln(ctx.App.Writer)
ShowCommandHelp(ctx, c.Name)
return nerr
}
context := NewContext(ctx.App, set, ctx)
if checkCommandCompletions(context, c.Name) {
return nil
}
if checkCommandHelp(context, c.Name) {
return nil
}
if c.After != nil {
defer func() {
afterErr := c.After(context)
if afterErr != nil {
HandleExitCoder(err)
if err != nil {
err = NewMultiError(err, afterErr)
} else {
err = afterErr
}
}
}()
}
if c.Before != nil {
err = c.Before(context)
if err != nil {
fmt.Fprintln(ctx.App.Writer, err)
fmt.Fprintln(ctx.App.Writer)
ShowCommandHelp(ctx, c.Name)
HandleExitCoder(err)
return err
}
}
context.Command = c
err = HandleAction(c.Action, context)
if err != nil {
HandleExitCoder(err)
}
return err
}
// Names returns the names including short names and aliases.
func (c Command) Names() []string {
names := []string{c.Name}
if c.ShortName != "" {
names = append(names, c.ShortName)
}
return append(names, c.Aliases...)
}
// HasName returns true if Command.Name or Command.ShortName matches given name
func (c Command) HasName(name string) bool {
for _, n := range c.Names() {
if n == name {
return true
}
}
return false
}
func (c Command) startApp(ctx *Context) error {
app := NewApp()
app.Metadata = ctx.App.Metadata
// set the name and usage
app.Name = fmt.Sprintf("%s %s", ctx.App.Name, c.Name)
if c.HelpName == "" {
app.HelpName = c.HelpName
} else {
app.HelpName = app.Name
}
if c.Description != "" {
app.Usage = c.Description
} else {
app.Usage = c.Usage
}
// set CommandNotFound
app.CommandNotFound = ctx.App.CommandNotFound
// set the flags and commands
app.Commands = c.Subcommands
app.Flags = c.Flags
app.HideHelp = c.HideHelp
app.Version = ctx.App.Version
app.HideVersion = ctx.App.HideVersion
app.Compiled = ctx.App.Compiled
app.Author = ctx.App.Author
app.Email = ctx.App.Email
app.Writer = ctx.App.Writer
app.categories = CommandCategories{}
for _, command := range c.Subcommands {
app.categories = app.categories.AddCommand(command.Category, command)
}
sort.Sort(app.categories)
// bash completion
app.EnableBashCompletion = ctx.App.EnableBashCompletion
if c.BashComplete != nil {
app.BashComplete = c.BashComplete
}
// set the actions
app.Before = c.Before
app.After = c.After
if c.Action != nil {
app.Action = c.Action
} else {
app.Action = helpSubcommand.Action
}
for index, cc := range app.Commands {
app.Commands[index].commandNamePath = []string{c.Name, cc.Name}
}
return app.RunAsSubcommand(ctx)
}
// VisibleFlags returns a slice of the Flags with Hidden=false
func (c Command) VisibleFlags() []Flag {
return visibleFlags(c.Flags)
}
cli-1.18.0/command_test.go 0000664 0000000 0000000 00000005371 12734405620 0015365 0 ustar 00root root 0000000 0000000 package cli
import (
"errors"
"flag"
"fmt"
"io/ioutil"
"strings"
"testing"
)
func TestCommandFlagParsing(t *testing.T) {
cases := []struct {
testArgs []string
skipFlagParsing bool
expectedErr error
}{
{[]string{"blah", "blah", "-break"}, false, errors.New("flag provided but not defined: -break")}, // Test normal "not ignoring flags" flow
{[]string{"blah", "blah"}, true, nil}, // Test SkipFlagParsing without any args that look like flags
{[]string{"blah", "-break"}, true, nil}, // Test SkipFlagParsing with random flag arg
{[]string{"blah", "-help"}, true, nil}, // Test SkipFlagParsing with "special" help flag arg
}
for _, c := range cases {
app := NewApp()
app.Writer = ioutil.Discard
set := flag.NewFlagSet("test", 0)
set.Parse(c.testArgs)
context := NewContext(app, set, nil)
command := Command{
Name: "test-cmd",
Aliases: []string{"tc"},
Usage: "this is for testing",
Description: "testing",
Action: func(_ *Context) error { return nil },
}
command.SkipFlagParsing = c.skipFlagParsing
err := command.Run(context)
expect(t, err, c.expectedErr)
expect(t, []string(context.Args()), c.testArgs)
}
}
func TestCommand_Run_DoesNotOverwriteErrorFromBefore(t *testing.T) {
app := NewApp()
app.Commands = []Command{
{
Name: "bar",
Before: func(c *Context) error {
return fmt.Errorf("before error")
},
After: func(c *Context) error {
return fmt.Errorf("after error")
},
},
}
err := app.Run([]string{"foo", "bar"})
if err == nil {
t.Fatalf("expected to receive error from Run, got none")
}
if !strings.Contains(err.Error(), "before error") {
t.Errorf("expected text of error from Before method, but got none in \"%v\"", err)
}
if !strings.Contains(err.Error(), "after error") {
t.Errorf("expected text of error from After method, but got none in \"%v\"", err)
}
}
func TestCommand_OnUsageError_WithWrongFlagValue(t *testing.T) {
app := NewApp()
app.Commands = []Command{
{
Name: "bar",
Flags: []Flag{
IntFlag{Name: "flag"},
},
OnUsageError: func(c *Context, err error, _ bool) error {
if !strings.HasPrefix(err.Error(), "invalid value \"wrong\"") {
t.Errorf("Expect an invalid value error, but got \"%v\"", err)
}
return errors.New("intercepted: " + err.Error())
},
},
}
err := app.Run([]string{"foo", "bar", "--flag=wrong"})
if err == nil {
t.Fatalf("expected to receive error from Run, got none")
}
if !strings.HasPrefix(err.Error(), "intercepted: invalid value") {
t.Errorf("Expect an intercepted error, but got \"%v\"", err)
}
}
cli-1.18.0/context.go 0000664 0000000 0000000 00000031447 12734405620 0014377 0 ustar 00root root 0000000 0000000 package cli
import (
"errors"
"flag"
"strconv"
"strings"
"time"
)
// Context is a type that is passed through to
// each Handler action in a cli application. Context
// can be used to retrieve context-specific Args and
// parsed command-line options.
type Context struct {
App *App
Command Command
flagSet *flag.FlagSet
setFlags map[string]bool
globalSetFlags map[string]bool
parentContext *Context
}
// NewContext creates a new context. For use in when invoking an App or Command action.
func NewContext(app *App, set *flag.FlagSet, parentCtx *Context) *Context {
return &Context{App: app, flagSet: set, parentContext: parentCtx}
}
// Int looks up the value of a local int flag, returns 0 if no int flag exists
func (c *Context) Int(name string) int {
return lookupInt(name, c.flagSet)
}
// Int64 looks up the value of a local int flag, returns 0 if no int flag exists
func (c *Context) Int64(name string) int64 {
return lookupInt64(name, c.flagSet)
}
// Uint looks up the value of a local int flag, returns 0 if no int flag exists
func (c *Context) Uint(name string) uint {
return lookupUint(name, c.flagSet)
}
// Uint64 looks up the value of a local int flag, returns 0 if no int flag exists
func (c *Context) Uint64(name string) uint64 {
return lookupUint64(name, c.flagSet)
}
// Duration looks up the value of a local time.Duration flag, returns 0 if no
// time.Duration flag exists
func (c *Context) Duration(name string) time.Duration {
return lookupDuration(name, c.flagSet)
}
// Float64 looks up the value of a local float64 flag, returns 0 if no float64
// flag exists
func (c *Context) Float64(name string) float64 {
return lookupFloat64(name, c.flagSet)
}
// Bool looks up the value of a local bool flag, returns false if no bool flag exists
func (c *Context) Bool(name string) bool {
return lookupBool(name, c.flagSet)
}
// BoolT looks up the value of a local boolT flag, returns false if no bool flag exists
func (c *Context) BoolT(name string) bool {
return lookupBoolT(name, c.flagSet)
}
// String looks up the value of a local string flag, returns "" if no string flag exists
func (c *Context) String(name string) string {
return lookupString(name, c.flagSet)
}
// StringSlice looks up the value of a local string slice flag, returns nil if no
// string slice flag exists
func (c *Context) StringSlice(name string) []string {
return lookupStringSlice(name, c.flagSet)
}
// IntSlice looks up the value of a local int slice flag, returns nil if no int
// slice flag exists
func (c *Context) IntSlice(name string) []int {
return lookupIntSlice(name, c.flagSet)
}
// Int64Slice looks up the value of a local int slice flag, returns nil if no int
// slice flag exists
func (c *Context) Int64Slice(name string) []int64 {
return lookupInt64Slice(name, c.flagSet)
}
// Generic looks up the value of a local generic flag, returns nil if no generic
// flag exists
func (c *Context) Generic(name string) interface{} {
return lookupGeneric(name, c.flagSet)
}
// GlobalInt looks up the value of a global int flag, returns 0 if no int flag exists
func (c *Context) GlobalInt(name string) int {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupInt(name, fs)
}
return 0
}
// GlobalInt64 looks up the value of a global int flag, returns 0 if no int flag exists
func (c *Context) GlobalInt64(name string) int64 {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupInt64(name, fs)
}
return 0
}
// GlobalUint looks up the value of a global int flag, returns 0 if no int flag exists
func (c *Context) GlobalUint(name string) uint {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupUint(name, fs)
}
return 0
}
// GlobalUint64 looks up the value of a global int flag, returns 0 if no int flag exists
func (c *Context) GlobalUint64(name string) uint64 {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupUint64(name, fs)
}
return 0
}
// GlobalFloat64 looks up the value of a global float64 flag, returns float64(0)
// if no float64 flag exists
func (c *Context) GlobalFloat64(name string) float64 {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupFloat64(name, fs)
}
return float64(0)
}
// GlobalDuration looks up the value of a global time.Duration flag, returns 0
// if no time.Duration flag exists
func (c *Context) GlobalDuration(name string) time.Duration {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupDuration(name, fs)
}
return 0
}
// GlobalBool looks up the value of a global bool flag, returns false if no bool
// flag exists
func (c *Context) GlobalBool(name string) bool {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupBool(name, fs)
}
return false
}
// GlobalBoolT looks up the value of a global bool flag, returns true if no bool
// flag exists
func (c *Context) GlobalBoolT(name string) bool {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupBoolT(name, fs)
}
return false
}
// GlobalString looks up the value of a global string flag, returns "" if no
// string flag exists
func (c *Context) GlobalString(name string) string {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupString(name, fs)
}
return ""
}
// GlobalStringSlice looks up the value of a global string slice flag, returns
// nil if no string slice flag exists
func (c *Context) GlobalStringSlice(name string) []string {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupStringSlice(name, fs)
}
return nil
}
// GlobalIntSlice looks up the value of a global int slice flag, returns nil if
// no int slice flag exists
func (c *Context) GlobalIntSlice(name string) []int {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupIntSlice(name, fs)
}
return nil
}
// GlobalInt64Slice looks up the value of a global int slice flag, returns nil if
// no int slice flag exists
func (c *Context) GlobalInt64Slice(name string) []int64 {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupInt64Slice(name, fs)
}
return nil
}
// GlobalGeneric looks up the value of a global generic flag, returns nil if no
// generic flag exists
func (c *Context) GlobalGeneric(name string) interface{} {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupGeneric(name, fs)
}
return nil
}
// NumFlags returns the number of flags set
func (c *Context) NumFlags() int {
return c.flagSet.NFlag()
}
// Set sets a context flag to a value.
func (c *Context) Set(name, value string) error {
return c.flagSet.Set(name, value)
}
// GlobalSet sets a context flag to a value on the global flagset
func (c *Context) GlobalSet(name, value string) error {
return globalContext(c).flagSet.Set(name, value)
}
// IsSet determines if the flag was actually set
func (c *Context) IsSet(name string) bool {
if c.setFlags == nil {
c.setFlags = make(map[string]bool)
c.flagSet.Visit(func(f *flag.Flag) {
c.setFlags[f.Name] = true
})
}
return c.setFlags[name] == true
}
// GlobalIsSet determines if the global flag was actually set
func (c *Context) GlobalIsSet(name string) bool {
if c.globalSetFlags == nil {
c.globalSetFlags = make(map[string]bool)
ctx := c
if ctx.parentContext != nil {
ctx = ctx.parentContext
}
for ; ctx != nil && c.globalSetFlags[name] == false; ctx = ctx.parentContext {
ctx.flagSet.Visit(func(f *flag.Flag) {
c.globalSetFlags[f.Name] = true
})
}
}
return c.globalSetFlags[name]
}
// FlagNames returns a slice of flag names used in this context.
func (c *Context) FlagNames() (names []string) {
for _, flag := range c.Command.Flags {
name := strings.Split(flag.GetName(), ",")[0]
if name == "help" {
continue
}
names = append(names, name)
}
return
}
// GlobalFlagNames returns a slice of global flag names used by the app.
func (c *Context) GlobalFlagNames() (names []string) {
for _, flag := range c.App.Flags {
name := strings.Split(flag.GetName(), ",")[0]
if name == "help" || name == "version" {
continue
}
names = append(names, name)
}
return
}
// Parent returns the parent context, if any
func (c *Context) Parent() *Context {
return c.parentContext
}
// Args contains apps console arguments
type Args []string
// Args returns the command line arguments associated with the context.
func (c *Context) Args() Args {
args := Args(c.flagSet.Args())
return args
}
// NArg returns the number of the command line arguments.
func (c *Context) NArg() int {
return len(c.Args())
}
// Get returns the nth argument, or else a blank string
func (a Args) Get(n int) string {
if len(a) > n {
return a[n]
}
return ""
}
// First returns the first argument, or else a blank string
func (a Args) First() string {
return a.Get(0)
}
// Tail returns the rest of the arguments (not the first one)
// or else an empty string slice
func (a Args) Tail() []string {
if len(a) >= 2 {
return []string(a)[1:]
}
return []string{}
}
// Present checks if there are any arguments present
func (a Args) Present() bool {
return len(a) != 0
}
// Swap swaps arguments at the given indexes
func (a Args) Swap(from, to int) error {
if from >= len(a) || to >= len(a) {
return errors.New("index out of range")
}
a[from], a[to] = a[to], a[from]
return nil
}
func globalContext(ctx *Context) *Context {
if ctx == nil {
return nil
}
for {
if ctx.parentContext == nil {
return ctx
}
ctx = ctx.parentContext
}
}
func lookupGlobalFlagSet(name string, ctx *Context) *flag.FlagSet {
if ctx.parentContext != nil {
ctx = ctx.parentContext
}
for ; ctx != nil; ctx = ctx.parentContext {
if f := ctx.flagSet.Lookup(name); f != nil {
return ctx.flagSet
}
}
return nil
}
func lookupInt(name string, set *flag.FlagSet) int {
f := set.Lookup(name)
if f != nil {
val, err := strconv.ParseInt(f.Value.String(), 0, 64)
if err != nil {
return 0
}
return int(val)
}
return 0
}
func lookupInt64(name string, set *flag.FlagSet) int64 {
f := set.Lookup(name)
if f != nil {
val, err := strconv.ParseInt(f.Value.String(), 0, 64)
if err != nil {
return 0
}
return val
}
return 0
}
func lookupUint(name string, set *flag.FlagSet) uint {
f := set.Lookup(name)
if f != nil {
val, err := strconv.ParseUint(f.Value.String(), 0, 64)
if err != nil {
return 0
}
return uint(val)
}
return 0
}
func lookupUint64(name string, set *flag.FlagSet) uint64 {
f := set.Lookup(name)
if f != nil {
val, err := strconv.ParseUint(f.Value.String(), 0, 64)
if err != nil {
return 0
}
return val
}
return 0
}
func lookupDuration(name string, set *flag.FlagSet) time.Duration {
f := set.Lookup(name)
if f != nil {
val, err := time.ParseDuration(f.Value.String())
if err == nil {
return val
}
}
return 0
}
func lookupFloat64(name string, set *flag.FlagSet) float64 {
f := set.Lookup(name)
if f != nil {
val, err := strconv.ParseFloat(f.Value.String(), 64)
if err != nil {
return 0
}
return val
}
return 0
}
func lookupString(name string, set *flag.FlagSet) string {
f := set.Lookup(name)
if f != nil {
return f.Value.String()
}
return ""
}
func lookupStringSlice(name string, set *flag.FlagSet) []string {
f := set.Lookup(name)
if f != nil {
return (f.Value.(*StringSlice)).Value()
}
return nil
}
func lookupIntSlice(name string, set *flag.FlagSet) []int {
f := set.Lookup(name)
if f != nil {
return (f.Value.(*IntSlice)).Value()
}
return nil
}
func lookupInt64Slice(name string, set *flag.FlagSet) []int64 {
f := set.Lookup(name)
if f != nil {
return (f.Value.(*Int64Slice)).Value()
}
return nil
}
func lookupGeneric(name string, set *flag.FlagSet) interface{} {
f := set.Lookup(name)
if f != nil {
return f.Value
}
return nil
}
func lookupBool(name string, set *flag.FlagSet) bool {
f := set.Lookup(name)
if f != nil {
val, err := strconv.ParseBool(f.Value.String())
if err != nil {
return false
}
return val
}
return false
}
func lookupBoolT(name string, set *flag.FlagSet) bool {
f := set.Lookup(name)
if f != nil {
val, err := strconv.ParseBool(f.Value.String())
if err != nil {
return true
}
return val
}
return false
}
func copyFlag(name string, ff *flag.Flag, set *flag.FlagSet) {
switch ff.Value.(type) {
case *StringSlice:
default:
set.Set(name, ff.Value.String())
}
}
func normalizeFlags(flags []Flag, set *flag.FlagSet) error {
visited := make(map[string]bool)
set.Visit(func(f *flag.Flag) {
visited[f.Name] = true
})
for _, f := range flags {
parts := strings.Split(f.GetName(), ",")
if len(parts) == 1 {
continue
}
var ff *flag.Flag
for _, name := range parts {
name = strings.Trim(name, " ")
if visited[name] {
if ff != nil {
return errors.New("Cannot use two forms of the same flag: " + name + " " + ff.Name)
}
ff = set.Lookup(name)
}
}
if ff == nil {
continue
}
for _, name := range parts {
name = strings.Trim(name, " ")
if !visited[name] {
copyFlag(name, ff, set)
}
}
}
return nil
}
cli-1.18.0/context_test.go 0000664 0000000 0000000 00000020374 12734405620 0015433 0 ustar 00root root 0000000 0000000 package cli
import (
"flag"
"testing"
"time"
)
func TestNewContext(t *testing.T) {
set := flag.NewFlagSet("test", 0)
set.Int("myflag", 12, "doc")
set.Int64("myflagInt64", int64(12), "doc")
set.Uint("myflagUint", uint(93), "doc")
set.Uint64("myflagUint64", uint64(93), "doc")
set.Float64("myflag64", float64(17), "doc")
globalSet := flag.NewFlagSet("test", 0)
globalSet.Int("myflag", 42, "doc")
globalSet.Int64("myflagInt64", int64(42), "doc")
globalSet.Uint("myflagUint", uint(33), "doc")
globalSet.Uint64("myflagUint64", uint64(33), "doc")
globalSet.Float64("myflag64", float64(47), "doc")
globalCtx := NewContext(nil, globalSet, nil)
command := Command{Name: "mycommand"}
c := NewContext(nil, set, globalCtx)
c.Command = command
expect(t, c.Int("myflag"), 12)
expect(t, c.Int64("myflagInt64"), int64(12))
expect(t, c.Uint("myflagUint"), uint(93))
expect(t, c.Uint64("myflagUint64"), uint64(93))
expect(t, c.Float64("myflag64"), float64(17))
expect(t, c.GlobalInt("myflag"), 42)
expect(t, c.GlobalInt64("myflagInt64"), int64(42))
expect(t, c.GlobalUint("myflagUint"), uint(33))
expect(t, c.GlobalUint64("myflagUint64"), uint64(33))
expect(t, c.GlobalFloat64("myflag64"), float64(47))
expect(t, c.Command.Name, "mycommand")
}
func TestContext_Int(t *testing.T) {
set := flag.NewFlagSet("test", 0)
set.Int("myflag", 12, "doc")
c := NewContext(nil, set, nil)
expect(t, c.Int("myflag"), 12)
}
func TestContext_Int64(t *testing.T) {
set := flag.NewFlagSet("test", 0)
set.Int64("myflagInt64", 12, "doc")
c := NewContext(nil, set, nil)
expect(t, c.Int64("myflagInt64"), int64(12))
}
func TestContext_Uint(t *testing.T) {
set := flag.NewFlagSet("test", 0)
set.Uint("myflagUint", uint(13), "doc")
c := NewContext(nil, set, nil)
expect(t, c.Uint("myflagUint"), uint(13))
}
func TestContext_Uint64(t *testing.T) {
set := flag.NewFlagSet("test", 0)
set.Uint64("myflagUint64", uint64(9), "doc")
c := NewContext(nil, set, nil)
expect(t, c.Uint64("myflagUint64"), uint64(9))
}
func TestContext_GlobalInt(t *testing.T) {
set := flag.NewFlagSet("test", 0)
set.Int("myflag", 12, "doc")
c := NewContext(nil, set, nil)
expect(t, c.GlobalInt("myflag"), 12)
expect(t, c.GlobalInt("nope"), 0)
}
func TestContext_GlobalInt64(t *testing.T) {
set := flag.NewFlagSet("test", 0)
set.Int64("myflagInt64", 12, "doc")
c := NewContext(nil, set, nil)
expect(t, c.GlobalInt64("myflagInt64"), int64(12))
expect(t, c.GlobalInt64("nope"), int64(0))
}
func TestContext_Float64(t *testing.T) {
set := flag.NewFlagSet("test", 0)
set.Float64("myflag", float64(17), "doc")
c := NewContext(nil, set, nil)
expect(t, c.Float64("myflag"), float64(17))
}
func TestContext_GlobalFloat64(t *testing.T) {
set := flag.NewFlagSet("test", 0)
set.Float64("myflag", float64(17), "doc")
c := NewContext(nil, set, nil)
expect(t, c.GlobalFloat64("myflag"), float64(17))
expect(t, c.GlobalFloat64("nope"), float64(0))
}
func TestContext_Duration(t *testing.T) {
set := flag.NewFlagSet("test", 0)
set.Duration("myflag", time.Duration(12*time.Second), "doc")
c := NewContext(nil, set, nil)
expect(t, c.Duration("myflag"), time.Duration(12*time.Second))
}
func TestContext_String(t *testing.T) {
set := flag.NewFlagSet("test", 0)
set.String("myflag", "hello world", "doc")
c := NewContext(nil, set, nil)
expect(t, c.String("myflag"), "hello world")
}
func TestContext_Bool(t *testing.T) {
set := flag.NewFlagSet("test", 0)
set.Bool("myflag", false, "doc")
c := NewContext(nil, set, nil)
expect(t, c.Bool("myflag"), false)
}
func TestContext_BoolT(t *testing.T) {
set := flag.NewFlagSet("test", 0)
set.Bool("myflag", true, "doc")
c := NewContext(nil, set, nil)
expect(t, c.BoolT("myflag"), true)
}
func TestContext_GlobalBool(t *testing.T) {
set := flag.NewFlagSet("test", 0)
globalSet := flag.NewFlagSet("test-global", 0)
globalSet.Bool("myflag", false, "doc")
globalCtx := NewContext(nil, globalSet, nil)
c := NewContext(nil, set, globalCtx)
expect(t, c.GlobalBool("myflag"), false)
expect(t, c.GlobalBool("nope"), false)
}
func TestContext_GlobalBoolT(t *testing.T) {
set := flag.NewFlagSet("test", 0)
globalSet := flag.NewFlagSet("test-global", 0)
globalSet.Bool("myflag", true, "doc")
globalCtx := NewContext(nil, globalSet, nil)
c := NewContext(nil, set, globalCtx)
expect(t, c.GlobalBoolT("myflag"), true)
expect(t, c.GlobalBoolT("nope"), false)
}
func TestContext_Args(t *testing.T) {
set := flag.NewFlagSet("test", 0)
set.Bool("myflag", false, "doc")
c := NewContext(nil, set, nil)
set.Parse([]string{"--myflag", "bat", "baz"})
expect(t, len(c.Args()), 2)
expect(t, c.Bool("myflag"), true)
}
func TestContext_NArg(t *testing.T) {
set := flag.NewFlagSet("test", 0)
set.Bool("myflag", false, "doc")
c := NewContext(nil, set, nil)
set.Parse([]string{"--myflag", "bat", "baz"})
expect(t, c.NArg(), 2)
}
func TestContext_IsSet(t *testing.T) {
set := flag.NewFlagSet("test", 0)
set.Bool("myflag", false, "doc")
set.String("otherflag", "hello world", "doc")
globalSet := flag.NewFlagSet("test", 0)
globalSet.Bool("myflagGlobal", true, "doc")
globalCtx := NewContext(nil, globalSet, nil)
c := NewContext(nil, set, globalCtx)
set.Parse([]string{"--myflag", "bat", "baz"})
globalSet.Parse([]string{"--myflagGlobal", "bat", "baz"})
expect(t, c.IsSet("myflag"), true)
expect(t, c.IsSet("otherflag"), false)
expect(t, c.IsSet("bogusflag"), false)
expect(t, c.IsSet("myflagGlobal"), false)
}
func TestContext_GlobalIsSet(t *testing.T) {
set := flag.NewFlagSet("test", 0)
set.Bool("myflag", false, "doc")
set.String("otherflag", "hello world", "doc")
globalSet := flag.NewFlagSet("test", 0)
globalSet.Bool("myflagGlobal", true, "doc")
globalSet.Bool("myflagGlobalUnset", true, "doc")
globalCtx := NewContext(nil, globalSet, nil)
c := NewContext(nil, set, globalCtx)
set.Parse([]string{"--myflag", "bat", "baz"})
globalSet.Parse([]string{"--myflagGlobal", "bat", "baz"})
expect(t, c.GlobalIsSet("myflag"), false)
expect(t, c.GlobalIsSet("otherflag"), false)
expect(t, c.GlobalIsSet("bogusflag"), false)
expect(t, c.GlobalIsSet("myflagGlobal"), true)
expect(t, c.GlobalIsSet("myflagGlobalUnset"), false)
expect(t, c.GlobalIsSet("bogusGlobal"), false)
}
func TestContext_NumFlags(t *testing.T) {
set := flag.NewFlagSet("test", 0)
set.Bool("myflag", false, "doc")
set.String("otherflag", "hello world", "doc")
globalSet := flag.NewFlagSet("test", 0)
globalSet.Bool("myflagGlobal", true, "doc")
globalCtx := NewContext(nil, globalSet, nil)
c := NewContext(nil, set, globalCtx)
set.Parse([]string{"--myflag", "--otherflag=foo"})
globalSet.Parse([]string{"--myflagGlobal"})
expect(t, c.NumFlags(), 2)
}
func TestContext_GlobalFlag(t *testing.T) {
var globalFlag string
var globalFlagSet bool
app := NewApp()
app.Flags = []Flag{
StringFlag{Name: "global, g", Usage: "global"},
}
app.Action = func(c *Context) error {
globalFlag = c.GlobalString("global")
globalFlagSet = c.GlobalIsSet("global")
return nil
}
app.Run([]string{"command", "-g", "foo"})
expect(t, globalFlag, "foo")
expect(t, globalFlagSet, true)
}
func TestContext_GlobalFlagsInSubcommands(t *testing.T) {
subcommandRun := false
parentFlag := false
app := NewApp()
app.Flags = []Flag{
BoolFlag{Name: "debug, d", Usage: "Enable debugging"},
}
app.Commands = []Command{
{
Name: "foo",
Flags: []Flag{
BoolFlag{Name: "parent, p", Usage: "Parent flag"},
},
Subcommands: []Command{
{
Name: "bar",
Action: func(c *Context) error {
if c.GlobalBool("debug") {
subcommandRun = true
}
if c.GlobalBool("parent") {
parentFlag = true
}
return nil
},
},
},
},
}
app.Run([]string{"command", "-d", "foo", "-p", "bar"})
expect(t, subcommandRun, true)
expect(t, parentFlag, true)
}
func TestContext_Set(t *testing.T) {
set := flag.NewFlagSet("test", 0)
set.Int("int", 5, "an int")
c := NewContext(nil, set, nil)
c.Set("int", "1")
expect(t, c.Int("int"), 1)
}
func TestContext_GlobalSet(t *testing.T) {
gSet := flag.NewFlagSet("test", 0)
gSet.Int("int", 5, "an int")
set := flag.NewFlagSet("sub", 0)
set.Int("int", 3, "an int")
pc := NewContext(nil, gSet, nil)
c := NewContext(nil, set, pc)
c.Set("int", "1")
expect(t, c.Int("int"), 1)
expect(t, c.GlobalInt("int"), 5)
c.GlobalSet("int", "1")
expect(t, c.Int("int"), 1)
expect(t, c.GlobalInt("int"), 1)
}
cli-1.18.0/errors.go 0000664 0000000 0000000 00000004140 12734405620 0014215 0 ustar 00root root 0000000 0000000 package cli
import (
"fmt"
"io"
"os"
"strings"
)
// OsExiter is the function used when the app exits. If not set defaults to os.Exit.
var OsExiter = os.Exit
// ErrWriter is used to write errors to the user. This can be anything
// implementing the io.Writer interface and defaults to os.Stderr.
var ErrWriter io.Writer = os.Stderr
// MultiError is an error that wraps multiple errors.
type MultiError struct {
Errors []error
}
// NewMultiError creates a new MultiError. Pass in one or more errors.
func NewMultiError(err ...error) MultiError {
return MultiError{Errors: err}
}
// Error implents the error interface.
func (m MultiError) Error() string {
errs := make([]string, len(m.Errors))
for i, err := range m.Errors {
errs[i] = err.Error()
}
return strings.Join(errs, "\n")
}
// ExitCoder is the interface checked by `App` and `Command` for a custom exit
// code
type ExitCoder interface {
error
ExitCode() int
}
// ExitError fulfills both the builtin `error` interface and `ExitCoder`
type ExitError struct {
exitCode int
message string
}
// NewExitError makes a new *ExitError
func NewExitError(message string, exitCode int) *ExitError {
return &ExitError{
exitCode: exitCode,
message: message,
}
}
// Error returns the string message, fulfilling the interface required by
// `error`
func (ee *ExitError) Error() string {
return ee.message
}
// ExitCode returns the exit code, fulfilling the interface required by
// `ExitCoder`
func (ee *ExitError) ExitCode() int {
return ee.exitCode
}
// HandleExitCoder checks if the error fulfills the ExitCoder interface, and if
// so prints the error to stderr (if it is non-empty) and calls OsExiter with the
// given exit code. If the given error is a MultiError, then this func is
// called on all members of the Errors slice.
func HandleExitCoder(err error) {
if err == nil {
return
}
if exitErr, ok := err.(ExitCoder); ok {
if err.Error() != "" {
fmt.Fprintln(ErrWriter, err)
}
OsExiter(exitErr.ExitCode())
return
}
if multiErr, ok := err.(MultiError); ok {
for _, merr := range multiErr.Errors {
HandleExitCoder(merr)
}
}
}
cli-1.18.0/errors_test.go 0000664 0000000 0000000 00000001770 12734405620 0015262 0 ustar 00root root 0000000 0000000 package cli
import (
"errors"
"os"
"testing"
)
func TestHandleExitCoder_nil(t *testing.T) {
exitCode := 0
called := false
OsExiter = func(rc int) {
exitCode = rc
called = true
}
defer func() { OsExiter = os.Exit }()
HandleExitCoder(nil)
expect(t, exitCode, 0)
expect(t, called, false)
}
func TestHandleExitCoder_ExitCoder(t *testing.T) {
exitCode := 0
called := false
OsExiter = func(rc int) {
exitCode = rc
called = true
}
defer func() { OsExiter = os.Exit }()
HandleExitCoder(NewExitError("galactic perimeter breach", 9))
expect(t, exitCode, 9)
expect(t, called, true)
}
func TestHandleExitCoder_MultiErrorWithExitCoder(t *testing.T) {
exitCode := 0
called := false
OsExiter = func(rc int) {
exitCode = rc
called = true
}
defer func() { OsExiter = os.Exit }()
exitErr := NewExitError("galactic perimeter breach", 9)
err := NewMultiError(errors.New("wowsa"), errors.New("egad"), exitErr)
HandleExitCoder(err)
expect(t, exitCode, 9)
expect(t, called, true)
}
cli-1.18.0/flag.go 0000664 0000000 0000000 00000047744 12734405620 0013633 0 ustar 00root root 0000000 0000000 package cli
import (
"flag"
"fmt"
"os"
"reflect"
"runtime"
"strconv"
"strings"
"time"
)
const defaultPlaceholder = "value"
// BashCompletionFlag enables bash-completion for all commands and subcommands
var BashCompletionFlag = BoolFlag{
Name: "generate-bash-completion",
Hidden: true,
}
// VersionFlag prints the version for the application
var VersionFlag = BoolFlag{
Name: "version, v",
Usage: "print the version",
}
// HelpFlag prints the help for all commands and subcommands
// Set to the zero value (BoolFlag{}) to disable flag -- keeps subcommand
// unless HideHelp is set to true)
var HelpFlag = BoolFlag{
Name: "help, h",
Usage: "show help",
}
// FlagStringer converts a flag definition to a string. This is used by help
// to display a flag.
var FlagStringer FlagStringFunc = stringifyFlag
// Flag is a common interface related to parsing flags in cli.
// For more advanced flag parsing techniques, it is recommended that
// this interface be implemented.
type Flag interface {
fmt.Stringer
// Apply Flag settings to the given flag set
Apply(*flag.FlagSet)
GetName() string
}
func flagSet(name string, flags []Flag) *flag.FlagSet {
set := flag.NewFlagSet(name, flag.ContinueOnError)
for _, f := range flags {
f.Apply(set)
}
return set
}
func eachName(longName string, fn func(string)) {
parts := strings.Split(longName, ",")
for _, name := range parts {
name = strings.Trim(name, " ")
fn(name)
}
}
// Generic is a generic parseable type identified by a specific flag
type Generic interface {
Set(value string) error
String() string
}
// GenericFlag is the flag type for types implementing Generic
type GenericFlag struct {
Name string
Value Generic
Usage string
EnvVar string
Hidden bool
}
// String returns the string representation of the generic flag to display the
// help text to the user (uses the String() method of the generic flag to show
// the value)
func (f GenericFlag) String() string {
return FlagStringer(f)
}
// Apply takes the flagset and calls Set on the generic flag with the value
// provided by the user for parsing by the flag
func (f GenericFlag) Apply(set *flag.FlagSet) {
val := f.Value
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal := os.Getenv(envVar); envVal != "" {
val.Set(envVal)
break
}
}
}
eachName(f.Name, func(name string) {
set.Var(f.Value, name, f.Usage)
})
}
// GetName returns the name of a flag.
func (f GenericFlag) GetName() string {
return f.Name
}
// StringSlice is an opaque type for []string to satisfy flag.Value
type StringSlice []string
// Set appends the string value to the list of values
func (f *StringSlice) Set(value string) error {
*f = append(*f, value)
return nil
}
// String returns a readable representation of this value (for usage defaults)
func (f *StringSlice) String() string {
return fmt.Sprintf("%s", *f)
}
// Value returns the slice of strings set by this flag
func (f *StringSlice) Value() []string {
return *f
}
// StringSliceFlag is a string flag that can be specified multiple times on the
// command-line
type StringSliceFlag struct {
Name string
Value *StringSlice
Usage string
EnvVar string
Hidden bool
}
// String returns the usage
func (f StringSliceFlag) String() string {
return FlagStringer(f)
}
// Apply populates the flag given the flag set and environment
func (f StringSliceFlag) Apply(set *flag.FlagSet) {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal := os.Getenv(envVar); envVal != "" {
newVal := &StringSlice{}
for _, s := range strings.Split(envVal, ",") {
s = strings.TrimSpace(s)
newVal.Set(s)
}
f.Value = newVal
break
}
}
}
eachName(f.Name, func(name string) {
if f.Value == nil {
f.Value = &StringSlice{}
}
set.Var(f.Value, name, f.Usage)
})
}
// GetName returns the name of a flag.
func (f StringSliceFlag) GetName() string {
return f.Name
}
// IntSlice is an opaque type for []int to satisfy flag.Value
type IntSlice []int
// Set parses the value into an integer and appends it to the list of values
func (f *IntSlice) Set(value string) error {
tmp, err := strconv.Atoi(value)
if err != nil {
return err
}
*f = append(*f, tmp)
return nil
}
// String returns a readable representation of this value (for usage defaults)
func (f *IntSlice) String() string {
return fmt.Sprintf("%#v", *f)
}
// Value returns the slice of ints set by this flag
func (f *IntSlice) Value() []int {
return *f
}
// IntSliceFlag is an int flag that can be specified multiple times on the
// command-line
type IntSliceFlag struct {
Name string
Value *IntSlice
Usage string
EnvVar string
Hidden bool
}
// String returns the usage
func (f IntSliceFlag) String() string {
return FlagStringer(f)
}
// Apply populates the flag given the flag set and environment
func (f IntSliceFlag) Apply(set *flag.FlagSet) {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal := os.Getenv(envVar); envVal != "" {
newVal := &IntSlice{}
for _, s := range strings.Split(envVal, ",") {
s = strings.TrimSpace(s)
err := newVal.Set(s)
if err != nil {
fmt.Fprintf(ErrWriter, err.Error())
}
}
f.Value = newVal
break
}
}
}
eachName(f.Name, func(name string) {
if f.Value == nil {
f.Value = &IntSlice{}
}
set.Var(f.Value, name, f.Usage)
})
}
// GetName returns the name of the flag.
func (f IntSliceFlag) GetName() string {
return f.Name
}
// Int64Slice is an opaque type for []int to satisfy flag.Value
type Int64Slice []int64
// Set parses the value into an integer and appends it to the list of values
func (f *Int64Slice) Set(value string) error {
tmp, err := strconv.ParseInt(value, 10, 64)
if err != nil {
return err
}
*f = append(*f, tmp)
return nil
}
// String returns a readable representation of this value (for usage defaults)
func (f *Int64Slice) String() string {
return fmt.Sprintf("%#v", *f)
}
// Value returns the slice of ints set by this flag
func (f *Int64Slice) Value() []int64 {
return *f
}
// Int64SliceFlag is an int flag that can be specified multiple times on the
// command-line
type Int64SliceFlag struct {
Name string
Value *Int64Slice
Usage string
EnvVar string
Hidden bool
}
// String returns the usage
func (f Int64SliceFlag) String() string {
return FlagStringer(f)
}
// Apply populates the flag given the flag set and environment
func (f Int64SliceFlag) Apply(set *flag.FlagSet) {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal := os.Getenv(envVar); envVal != "" {
newVal := &Int64Slice{}
for _, s := range strings.Split(envVal, ",") {
s = strings.TrimSpace(s)
err := newVal.Set(s)
if err != nil {
fmt.Fprintf(ErrWriter, err.Error())
}
}
f.Value = newVal
break
}
}
}
eachName(f.Name, func(name string) {
if f.Value == nil {
f.Value = &Int64Slice{}
}
set.Var(f.Value, name, f.Usage)
})
}
// GetName returns the name of the flag.
func (f Int64SliceFlag) GetName() string {
return f.Name
}
// BoolFlag is a switch that defaults to false
type BoolFlag struct {
Name string
Usage string
EnvVar string
Destination *bool
Hidden bool
}
// String returns a readable representation of this value (for usage defaults)
func (f BoolFlag) String() string {
return FlagStringer(f)
}
// Apply populates the flag given the flag set and environment
func (f BoolFlag) Apply(set *flag.FlagSet) {
val := false
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal := os.Getenv(envVar); envVal != "" {
envValBool, err := strconv.ParseBool(envVal)
if err == nil {
val = envValBool
}
break
}
}
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.BoolVar(f.Destination, name, val, f.Usage)
return
}
set.Bool(name, val, f.Usage)
})
}
// GetName returns the name of the flag.
func (f BoolFlag) GetName() string {
return f.Name
}
// BoolTFlag this represents a boolean flag that is true by default, but can
// still be set to false by --some-flag=false
type BoolTFlag struct {
Name string
Usage string
EnvVar string
Destination *bool
Hidden bool
}
// String returns a readable representation of this value (for usage defaults)
func (f BoolTFlag) String() string {
return FlagStringer(f)
}
// Apply populates the flag given the flag set and environment
func (f BoolTFlag) Apply(set *flag.FlagSet) {
val := true
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal := os.Getenv(envVar); envVal != "" {
envValBool, err := strconv.ParseBool(envVal)
if err == nil {
val = envValBool
break
}
}
}
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.BoolVar(f.Destination, name, val, f.Usage)
return
}
set.Bool(name, val, f.Usage)
})
}
// GetName returns the name of the flag.
func (f BoolTFlag) GetName() string {
return f.Name
}
// StringFlag represents a flag that takes as string value
type StringFlag struct {
Name string
Value string
Usage string
EnvVar string
Destination *string
Hidden bool
}
// String returns the usage
func (f StringFlag) String() string {
return FlagStringer(f)
}
// Apply populates the flag given the flag set and environment
func (f StringFlag) Apply(set *flag.FlagSet) {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal := os.Getenv(envVar); envVal != "" {
f.Value = envVal
break
}
}
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.StringVar(f.Destination, name, f.Value, f.Usage)
return
}
set.String(name, f.Value, f.Usage)
})
}
// GetName returns the name of the flag.
func (f StringFlag) GetName() string {
return f.Name
}
// IntFlag is a flag that takes an integer
type IntFlag struct {
Name string
Value int
Usage string
EnvVar string
Destination *int
Hidden bool
}
// String returns the usage
func (f IntFlag) String() string {
return FlagStringer(f)
}
// Apply populates the flag given the flag set and environment
func (f IntFlag) Apply(set *flag.FlagSet) {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal := os.Getenv(envVar); envVal != "" {
envValInt, err := strconv.ParseInt(envVal, 0, 64)
if err == nil {
f.Value = int(envValInt)
break
}
}
}
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.IntVar(f.Destination, name, f.Value, f.Usage)
return
}
set.Int(name, f.Value, f.Usage)
})
}
// GetName returns the name of the flag.
func (f IntFlag) GetName() string {
return f.Name
}
// Int64Flag is a flag that takes a 64-bit integer
type Int64Flag struct {
Name string
Value int64
Usage string
EnvVar string
Destination *int64
Hidden bool
}
// String returns the usage
func (f Int64Flag) String() string {
return FlagStringer(f)
}
// Apply populates the flag given the flag set and environment
func (f Int64Flag) Apply(set *flag.FlagSet) {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal := os.Getenv(envVar); envVal != "" {
envValInt, err := strconv.ParseInt(envVal, 0, 64)
if err == nil {
f.Value = envValInt
break
}
}
}
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.Int64Var(f.Destination, name, f.Value, f.Usage)
return
}
set.Int64(name, f.Value, f.Usage)
})
}
// GetName returns the name of the flag.
func (f Int64Flag) GetName() string {
return f.Name
}
// UintFlag is a flag that takes an unsigned integer
type UintFlag struct {
Name string
Value uint
Usage string
EnvVar string
Destination *uint
Hidden bool
}
// String returns the usage
func (f UintFlag) String() string {
return FlagStringer(f)
}
// Apply populates the flag given the flag set and environment
func (f UintFlag) Apply(set *flag.FlagSet) {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal := os.Getenv(envVar); envVal != "" {
envValInt, err := strconv.ParseUint(envVal, 0, 64)
if err == nil {
f.Value = uint(envValInt)
break
}
}
}
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.UintVar(f.Destination, name, f.Value, f.Usage)
return
}
set.Uint(name, f.Value, f.Usage)
})
}
// GetName returns the name of the flag.
func (f UintFlag) GetName() string {
return f.Name
}
// Uint64Flag is a flag that takes an unsigned 64-bit integer
type Uint64Flag struct {
Name string
Value uint64
Usage string
EnvVar string
Destination *uint64
Hidden bool
}
// String returns the usage
func (f Uint64Flag) String() string {
return FlagStringer(f)
}
// Apply populates the flag given the flag set and environment
func (f Uint64Flag) Apply(set *flag.FlagSet) {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal := os.Getenv(envVar); envVal != "" {
envValInt, err := strconv.ParseUint(envVal, 0, 64)
if err == nil {
f.Value = uint64(envValInt)
break
}
}
}
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.Uint64Var(f.Destination, name, f.Value, f.Usage)
return
}
set.Uint64(name, f.Value, f.Usage)
})
}
// GetName returns the name of the flag.
func (f Uint64Flag) GetName() string {
return f.Name
}
// DurationFlag is a flag that takes a duration specified in Go's duration
// format: https://golang.org/pkg/time/#ParseDuration
type DurationFlag struct {
Name string
Value time.Duration
Usage string
EnvVar string
Destination *time.Duration
Hidden bool
}
// String returns a readable representation of this value (for usage defaults)
func (f DurationFlag) String() string {
return FlagStringer(f)
}
// Apply populates the flag given the flag set and environment
func (f DurationFlag) Apply(set *flag.FlagSet) {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal := os.Getenv(envVar); envVal != "" {
envValDuration, err := time.ParseDuration(envVal)
if err == nil {
f.Value = envValDuration
break
}
}
}
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.DurationVar(f.Destination, name, f.Value, f.Usage)
return
}
set.Duration(name, f.Value, f.Usage)
})
}
// GetName returns the name of the flag.
func (f DurationFlag) GetName() string {
return f.Name
}
// Float64Flag is a flag that takes an float value
type Float64Flag struct {
Name string
Value float64
Usage string
EnvVar string
Destination *float64
Hidden bool
}
// String returns the usage
func (f Float64Flag) String() string {
return FlagStringer(f)
}
// Apply populates the flag given the flag set and environment
func (f Float64Flag) Apply(set *flag.FlagSet) {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal := os.Getenv(envVar); envVal != "" {
envValFloat, err := strconv.ParseFloat(envVal, 10)
if err == nil {
f.Value = float64(envValFloat)
}
}
}
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.Float64Var(f.Destination, name, f.Value, f.Usage)
return
}
set.Float64(name, f.Value, f.Usage)
})
}
// GetName returns the name of the flag.
func (f Float64Flag) GetName() string {
return f.Name
}
func visibleFlags(fl []Flag) []Flag {
visible := []Flag{}
for _, flag := range fl {
if !flagValue(flag).FieldByName("Hidden").Bool() {
visible = append(visible, flag)
}
}
return visible
}
func prefixFor(name string) (prefix string) {
if len(name) == 1 {
prefix = "-"
} else {
prefix = "--"
}
return
}
// Returns the placeholder, if any, and the unquoted usage string.
func unquoteUsage(usage string) (string, string) {
for i := 0; i < len(usage); i++ {
if usage[i] == '`' {
for j := i + 1; j < len(usage); j++ {
if usage[j] == '`' {
name := usage[i+1 : j]
usage = usage[:i] + name + usage[j+1:]
return name, usage
}
}
break
}
}
return "", usage
}
func prefixedNames(fullName, placeholder string) string {
var prefixed string
parts := strings.Split(fullName, ",")
for i, name := range parts {
name = strings.Trim(name, " ")
prefixed += prefixFor(name) + name
if placeholder != "" {
prefixed += " " + placeholder
}
if i < len(parts)-1 {
prefixed += ", "
}
}
return prefixed
}
func withEnvHint(envVar, str string) string {
envText := ""
if envVar != "" {
prefix := "$"
suffix := ""
sep := ", $"
if runtime.GOOS == "windows" {
prefix = "%"
suffix = "%"
sep = "%, %"
}
envText = fmt.Sprintf(" [%s%s%s]", prefix, strings.Join(strings.Split(envVar, ","), sep), suffix)
}
return str + envText
}
func flagValue(f Flag) reflect.Value {
fv := reflect.ValueOf(f)
for fv.Kind() == reflect.Ptr {
fv = reflect.Indirect(fv)
}
return fv
}
func stringifyFlag(f Flag) string {
fv := flagValue(f)
switch f.(type) {
case IntSliceFlag:
return withEnvHint(fv.FieldByName("EnvVar").String(),
stringifyIntSliceFlag(f.(IntSliceFlag)))
case Int64SliceFlag:
return withEnvHint(fv.FieldByName("EnvVar").String(),
stringifyInt64SliceFlag(f.(Int64SliceFlag)))
case StringSliceFlag:
return withEnvHint(fv.FieldByName("EnvVar").String(),
stringifyStringSliceFlag(f.(StringSliceFlag)))
}
placeholder, usage := unquoteUsage(fv.FieldByName("Usage").String())
needsPlaceholder := false
defaultValueString := ""
val := fv.FieldByName("Value")
if val.IsValid() {
needsPlaceholder = true
defaultValueString = fmt.Sprintf(" (default: %v)", val.Interface())
if val.Kind() == reflect.String && val.String() != "" {
defaultValueString = fmt.Sprintf(" (default: %q)", val.String())
}
}
if defaultValueString == " (default: )" {
defaultValueString = ""
}
if needsPlaceholder && placeholder == "" {
placeholder = defaultPlaceholder
}
usageWithDefault := strings.TrimSpace(fmt.Sprintf("%s%s", usage, defaultValueString))
return withEnvHint(fv.FieldByName("EnvVar").String(),
fmt.Sprintf("%s\t%s", prefixedNames(fv.FieldByName("Name").String(), placeholder), usageWithDefault))
}
func stringifyIntSliceFlag(f IntSliceFlag) string {
defaultVals := []string{}
if f.Value != nil && len(f.Value.Value()) > 0 {
for _, i := range f.Value.Value() {
defaultVals = append(defaultVals, fmt.Sprintf("%d", i))
}
}
return stringifySliceFlag(f.Usage, f.Name, defaultVals)
}
func stringifyInt64SliceFlag(f Int64SliceFlag) string {
defaultVals := []string{}
if f.Value != nil && len(f.Value.Value()) > 0 {
for _, i := range f.Value.Value() {
defaultVals = append(defaultVals, fmt.Sprintf("%d", i))
}
}
return stringifySliceFlag(f.Usage, f.Name, defaultVals)
}
func stringifyStringSliceFlag(f StringSliceFlag) string {
defaultVals := []string{}
if f.Value != nil && len(f.Value.Value()) > 0 {
for _, s := range f.Value.Value() {
if len(s) > 0 {
defaultVals = append(defaultVals, fmt.Sprintf("%q", s))
}
}
}
return stringifySliceFlag(f.Usage, f.Name, defaultVals)
}
func stringifySliceFlag(usage, name string, defaultVals []string) string {
placeholder, usage := unquoteUsage(usage)
if placeholder == "" {
placeholder = defaultPlaceholder
}
defaultVal := ""
if len(defaultVals) > 0 {
defaultVal = fmt.Sprintf(" (default: %s)", strings.Join(defaultVals, ", "))
}
usageWithDefault := strings.TrimSpace(fmt.Sprintf("%s%s", usage, defaultVal))
return fmt.Sprintf("%s\t%s", prefixedNames(name, placeholder), usageWithDefault)
}
cli-1.18.0/flag_test.go 0000664 0000000 0000000 00000062415 12734405620 0014662 0 ustar 00root root 0000000 0000000 package cli
import (
"fmt"
"os"
"reflect"
"runtime"
"strings"
"testing"
"time"
)
var boolFlagTests = []struct {
name string
expected string
}{
{"help", "--help\t"},
{"h", "-h\t"},
}
func TestBoolFlagHelpOutput(t *testing.T) {
for _, test := range boolFlagTests {
flag := BoolFlag{Name: test.name}
output := flag.String()
if output != test.expected {
t.Errorf("%q does not match %q", output, test.expected)
}
}
}
var stringFlagTests = []struct {
name string
usage string
value string
expected string
}{
{"foo", "", "", "--foo value\t"},
{"f", "", "", "-f value\t"},
{"f", "The total `foo` desired", "all", "-f foo\tThe total foo desired (default: \"all\")"},
{"test", "", "Something", "--test value\t(default: \"Something\")"},
{"config,c", "Load configuration from `FILE`", "", "--config FILE, -c FILE\tLoad configuration from FILE"},
{"config,c", "Load configuration from `CONFIG`", "config.json", "--config CONFIG, -c CONFIG\tLoad configuration from CONFIG (default: \"config.json\")"},
}
func TestStringFlagHelpOutput(t *testing.T) {
for _, test := range stringFlagTests {
flag := StringFlag{Name: test.name, Usage: test.usage, Value: test.value}
output := flag.String()
if output != test.expected {
t.Errorf("%q does not match %q", output, test.expected)
}
}
}
func TestStringFlagWithEnvVarHelpOutput(t *testing.T) {
os.Clearenv()
os.Setenv("APP_FOO", "derp")
for _, test := range stringFlagTests {
flag := StringFlag{Name: test.name, Value: test.value, EnvVar: "APP_FOO"}
output := flag.String()
expectedSuffix := " [$APP_FOO]"
if runtime.GOOS == "windows" {
expectedSuffix = " [%APP_FOO%]"
}
if !strings.HasSuffix(output, expectedSuffix) {
t.Errorf("%s does not end with"+expectedSuffix, output)
}
}
}
var stringSliceFlagTests = []struct {
name string
value *StringSlice
expected string
}{
{"foo", func() *StringSlice {
s := &StringSlice{}
s.Set("")
return s
}(), "--foo value\t"},
{"f", func() *StringSlice {
s := &StringSlice{}
s.Set("")
return s
}(), "-f value\t"},
{"f", func() *StringSlice {
s := &StringSlice{}
s.Set("Lipstick")
return s
}(), "-f value\t(default: \"Lipstick\")"},
{"test", func() *StringSlice {
s := &StringSlice{}
s.Set("Something")
return s
}(), "--test value\t(default: \"Something\")"},
}
func TestStringSliceFlagHelpOutput(t *testing.T) {
for _, test := range stringSliceFlagTests {
flag := StringSliceFlag{Name: test.name, Value: test.value}
output := flag.String()
if output != test.expected {
t.Errorf("%q does not match %q", output, test.expected)
}
}
}
func TestStringSliceFlagWithEnvVarHelpOutput(t *testing.T) {
os.Clearenv()
os.Setenv("APP_QWWX", "11,4")
for _, test := range stringSliceFlagTests {
flag := StringSliceFlag{Name: test.name, Value: test.value, EnvVar: "APP_QWWX"}
output := flag.String()
expectedSuffix := " [$APP_QWWX]"
if runtime.GOOS == "windows" {
expectedSuffix = " [%APP_QWWX%]"
}
if !strings.HasSuffix(output, expectedSuffix) {
t.Errorf("%q does not end with"+expectedSuffix, output)
}
}
}
var intFlagTests = []struct {
name string
expected string
}{
{"hats", "--hats value\t(default: 9)"},
{"H", "-H value\t(default: 9)"},
}
func TestIntFlagHelpOutput(t *testing.T) {
for _, test := range intFlagTests {
flag := IntFlag{Name: test.name, Value: 9}
output := flag.String()
if output != test.expected {
t.Errorf("%s does not match %s", output, test.expected)
}
}
}
func TestIntFlagWithEnvVarHelpOutput(t *testing.T) {
os.Clearenv()
os.Setenv("APP_BAR", "2")
for _, test := range intFlagTests {
flag := IntFlag{Name: test.name, EnvVar: "APP_BAR"}
output := flag.String()
expectedSuffix := " [$APP_BAR]"
if runtime.GOOS == "windows" {
expectedSuffix = " [%APP_BAR%]"
}
if !strings.HasSuffix(output, expectedSuffix) {
t.Errorf("%s does not end with"+expectedSuffix, output)
}
}
}
var int64FlagTests = []struct {
name string
expected string
}{
{"hats", "--hats value\t(default: 8589934592)"},
{"H", "-H value\t(default: 8589934592)"},
}
func TestInt64FlagHelpOutput(t *testing.T) {
for _, test := range int64FlagTests {
flag := Int64Flag{Name: test.name, Value: 8589934592}
output := flag.String()
if output != test.expected {
t.Errorf("%s does not match %s", output, test.expected)
}
}
}
func TestInt64FlagWithEnvVarHelpOutput(t *testing.T) {
os.Clearenv()
os.Setenv("APP_BAR", "2")
for _, test := range int64FlagTests {
flag := IntFlag{Name: test.name, EnvVar: "APP_BAR"}
output := flag.String()
expectedSuffix := " [$APP_BAR]"
if runtime.GOOS == "windows" {
expectedSuffix = " [%APP_BAR%]"
}
if !strings.HasSuffix(output, expectedSuffix) {
t.Errorf("%s does not end with"+expectedSuffix, output)
}
}
}
var uintFlagTests = []struct {
name string
expected string
}{
{"nerfs", "--nerfs value\t(default: 41)"},
{"N", "-N value\t(default: 41)"},
}
func TestUintFlagHelpOutput(t *testing.T) {
for _, test := range uintFlagTests {
flag := UintFlag{Name: test.name, Value: 41}
output := flag.String()
if output != test.expected {
t.Errorf("%s does not match %s", output, test.expected)
}
}
}
func TestUintFlagWithEnvVarHelpOutput(t *testing.T) {
os.Clearenv()
os.Setenv("APP_BAR", "2")
for _, test := range uintFlagTests {
flag := UintFlag{Name: test.name, EnvVar: "APP_BAR"}
output := flag.String()
expectedSuffix := " [$APP_BAR]"
if runtime.GOOS == "windows" {
expectedSuffix = " [%APP_BAR%]"
}
if !strings.HasSuffix(output, expectedSuffix) {
t.Errorf("%s does not end with"+expectedSuffix, output)
}
}
}
var uint64FlagTests = []struct {
name string
expected string
}{
{"gerfs", "--gerfs value\t(default: 8589934582)"},
{"G", "-G value\t(default: 8589934582)"},
}
func TestUint64FlagHelpOutput(t *testing.T) {
for _, test := range uint64FlagTests {
flag := Uint64Flag{Name: test.name, Value: 8589934582}
output := flag.String()
if output != test.expected {
t.Errorf("%s does not match %s", output, test.expected)
}
}
}
func TestUint64FlagWithEnvVarHelpOutput(t *testing.T) {
os.Clearenv()
os.Setenv("APP_BAR", "2")
for _, test := range uint64FlagTests {
flag := UintFlag{Name: test.name, EnvVar: "APP_BAR"}
output := flag.String()
expectedSuffix := " [$APP_BAR]"
if runtime.GOOS == "windows" {
expectedSuffix = " [%APP_BAR%]"
}
if !strings.HasSuffix(output, expectedSuffix) {
t.Errorf("%s does not end with"+expectedSuffix, output)
}
}
}
var durationFlagTests = []struct {
name string
expected string
}{
{"hooting", "--hooting value\t(default: 1s)"},
{"H", "-H value\t(default: 1s)"},
}
func TestDurationFlagHelpOutput(t *testing.T) {
for _, test := range durationFlagTests {
flag := DurationFlag{Name: test.name, Value: 1 * time.Second}
output := flag.String()
if output != test.expected {
t.Errorf("%q does not match %q", output, test.expected)
}
}
}
func TestDurationFlagWithEnvVarHelpOutput(t *testing.T) {
os.Clearenv()
os.Setenv("APP_BAR", "2h3m6s")
for _, test := range durationFlagTests {
flag := DurationFlag{Name: test.name, EnvVar: "APP_BAR"}
output := flag.String()
expectedSuffix := " [$APP_BAR]"
if runtime.GOOS == "windows" {
expectedSuffix = " [%APP_BAR%]"
}
if !strings.HasSuffix(output, expectedSuffix) {
t.Errorf("%s does not end with"+expectedSuffix, output)
}
}
}
var intSliceFlagTests = []struct {
name string
value *IntSlice
expected string
}{
{"heads", &IntSlice{}, "--heads value\t"},
{"H", &IntSlice{}, "-H value\t"},
{"H, heads", func() *IntSlice {
i := &IntSlice{}
i.Set("9")
i.Set("3")
return i
}(), "-H value, --heads value\t(default: 9, 3)"},
}
func TestIntSliceFlagHelpOutput(t *testing.T) {
for _, test := range intSliceFlagTests {
flag := IntSliceFlag{Name: test.name, Value: test.value}
output := flag.String()
if output != test.expected {
t.Errorf("%q does not match %q", output, test.expected)
}
}
}
func TestIntSliceFlagWithEnvVarHelpOutput(t *testing.T) {
os.Clearenv()
os.Setenv("APP_SMURF", "42,3")
for _, test := range intSliceFlagTests {
flag := IntSliceFlag{Name: test.name, Value: test.value, EnvVar: "APP_SMURF"}
output := flag.String()
expectedSuffix := " [$APP_SMURF]"
if runtime.GOOS == "windows" {
expectedSuffix = " [%APP_SMURF%]"
}
if !strings.HasSuffix(output, expectedSuffix) {
t.Errorf("%q does not end with"+expectedSuffix, output)
}
}
}
var int64SliceFlagTests = []struct {
name string
value *Int64Slice
expected string
}{
{"heads", &Int64Slice{}, "--heads value\t"},
{"H", &Int64Slice{}, "-H value\t"},
{"H, heads", func() *Int64Slice {
i := &Int64Slice{}
i.Set("2")
i.Set("17179869184")
return i
}(), "-H value, --heads value\t(default: 2, 17179869184)"},
}
func TestInt64SliceFlagHelpOutput(t *testing.T) {
for _, test := range int64SliceFlagTests {
flag := Int64SliceFlag{Name: test.name, Value: test.value}
output := flag.String()
if output != test.expected {
t.Errorf("%q does not match %q", output, test.expected)
}
}
}
func TestInt64SliceFlagWithEnvVarHelpOutput(t *testing.T) {
os.Clearenv()
os.Setenv("APP_SMURF", "42,17179869184")
for _, test := range int64SliceFlagTests {
flag := Int64SliceFlag{Name: test.name, Value: test.value, EnvVar: "APP_SMURF"}
output := flag.String()
expectedSuffix := " [$APP_SMURF]"
if runtime.GOOS == "windows" {
expectedSuffix = " [%APP_SMURF%]"
}
if !strings.HasSuffix(output, expectedSuffix) {
t.Errorf("%q does not end with"+expectedSuffix, output)
}
}
}
var float64FlagTests = []struct {
name string
expected string
}{
{"hooting", "--hooting value\t(default: 0.1)"},
{"H", "-H value\t(default: 0.1)"},
}
func TestFloat64FlagHelpOutput(t *testing.T) {
for _, test := range float64FlagTests {
flag := Float64Flag{Name: test.name, Value: float64(0.1)}
output := flag.String()
if output != test.expected {
t.Errorf("%q does not match %q", output, test.expected)
}
}
}
func TestFloat64FlagWithEnvVarHelpOutput(t *testing.T) {
os.Clearenv()
os.Setenv("APP_BAZ", "99.4")
for _, test := range float64FlagTests {
flag := Float64Flag{Name: test.name, EnvVar: "APP_BAZ"}
output := flag.String()
expectedSuffix := " [$APP_BAZ]"
if runtime.GOOS == "windows" {
expectedSuffix = " [%APP_BAZ%]"
}
if !strings.HasSuffix(output, expectedSuffix) {
t.Errorf("%s does not end with"+expectedSuffix, output)
}
}
}
var genericFlagTests = []struct {
name string
value Generic
expected string
}{
{"toads", &Parser{"abc", "def"}, "--toads value\ttest flag (default: abc,def)"},
{"t", &Parser{"abc", "def"}, "-t value\ttest flag (default: abc,def)"},
}
func TestGenericFlagHelpOutput(t *testing.T) {
for _, test := range genericFlagTests {
flag := GenericFlag{Name: test.name, Value: test.value, Usage: "test flag"}
output := flag.String()
if output != test.expected {
t.Errorf("%q does not match %q", output, test.expected)
}
}
}
func TestGenericFlagWithEnvVarHelpOutput(t *testing.T) {
os.Clearenv()
os.Setenv("APP_ZAP", "3")
for _, test := range genericFlagTests {
flag := GenericFlag{Name: test.name, EnvVar: "APP_ZAP"}
output := flag.String()
expectedSuffix := " [$APP_ZAP]"
if runtime.GOOS == "windows" {
expectedSuffix = " [%APP_ZAP%]"
}
if !strings.HasSuffix(output, expectedSuffix) {
t.Errorf("%s does not end with"+expectedSuffix, output)
}
}
}
func TestParseMultiString(t *testing.T) {
(&App{
Flags: []Flag{
StringFlag{Name: "serve, s"},
},
Action: func(ctx *Context) error {
if ctx.String("serve") != "10" {
t.Errorf("main name not set")
}
if ctx.String("s") != "10" {
t.Errorf("short name not set")
}
return nil
},
}).Run([]string{"run", "-s", "10"})
}
func TestParseDestinationString(t *testing.T) {
var dest string
a := App{
Flags: []Flag{
StringFlag{
Name: "dest",
Destination: &dest,
},
},
Action: func(ctx *Context) error {
if dest != "10" {
t.Errorf("expected destination String 10")
}
return nil
},
}
a.Run([]string{"run", "--dest", "10"})
}
func TestParseMultiStringFromEnv(t *testing.T) {
os.Clearenv()
os.Setenv("APP_COUNT", "20")
(&App{
Flags: []Flag{
StringFlag{Name: "count, c", EnvVar: "APP_COUNT"},
},
Action: func(ctx *Context) error {
if ctx.String("count") != "20" {
t.Errorf("main name not set")
}
if ctx.String("c") != "20" {
t.Errorf("short name not set")
}
return nil
},
}).Run([]string{"run"})
}
func TestParseMultiStringFromEnvCascade(t *testing.T) {
os.Clearenv()
os.Setenv("APP_COUNT", "20")
(&App{
Flags: []Flag{
StringFlag{Name: "count, c", EnvVar: "COMPAT_COUNT,APP_COUNT"},
},
Action: func(ctx *Context) error {
if ctx.String("count") != "20" {
t.Errorf("main name not set")
}
if ctx.String("c") != "20" {
t.Errorf("short name not set")
}
return nil
},
}).Run([]string{"run"})
}
func TestParseMultiStringSlice(t *testing.T) {
(&App{
Flags: []Flag{
StringSliceFlag{Name: "serve, s", Value: &StringSlice{}},
},
Action: func(ctx *Context) error {
if !reflect.DeepEqual(ctx.StringSlice("serve"), []string{"10", "20"}) {
t.Errorf("main name not set")
}
if !reflect.DeepEqual(ctx.StringSlice("s"), []string{"10", "20"}) {
t.Errorf("short name not set")
}
return nil
},
}).Run([]string{"run", "-s", "10", "-s", "20"})
}
func TestParseMultiStringSliceFromEnv(t *testing.T) {
os.Clearenv()
os.Setenv("APP_INTERVALS", "20,30,40")
(&App{
Flags: []Flag{
StringSliceFlag{Name: "intervals, i", Value: &StringSlice{}, EnvVar: "APP_INTERVALS"},
},
Action: func(ctx *Context) error {
if !reflect.DeepEqual(ctx.StringSlice("intervals"), []string{"20", "30", "40"}) {
t.Errorf("main name not set from env")
}
if !reflect.DeepEqual(ctx.StringSlice("i"), []string{"20", "30", "40"}) {
t.Errorf("short name not set from env")
}
return nil
},
}).Run([]string{"run"})
}
func TestParseMultiStringSliceFromEnvCascade(t *testing.T) {
os.Clearenv()
os.Setenv("APP_INTERVALS", "20,30,40")
(&App{
Flags: []Flag{
StringSliceFlag{Name: "intervals, i", Value: &StringSlice{}, EnvVar: "COMPAT_INTERVALS,APP_INTERVALS"},
},
Action: func(ctx *Context) error {
if !reflect.DeepEqual(ctx.StringSlice("intervals"), []string{"20", "30", "40"}) {
t.Errorf("main name not set from env")
}
if !reflect.DeepEqual(ctx.StringSlice("i"), []string{"20", "30", "40"}) {
t.Errorf("short name not set from env")
}
return nil
},
}).Run([]string{"run"})
}
func TestParseMultiInt(t *testing.T) {
a := App{
Flags: []Flag{
IntFlag{Name: "serve, s"},
},
Action: func(ctx *Context) error {
if ctx.Int("serve") != 10 {
t.Errorf("main name not set")
}
if ctx.Int("s") != 10 {
t.Errorf("short name not set")
}
return nil
},
}
a.Run([]string{"run", "-s", "10"})
}
func TestParseDestinationInt(t *testing.T) {
var dest int
a := App{
Flags: []Flag{
IntFlag{
Name: "dest",
Destination: &dest,
},
},
Action: func(ctx *Context) error {
if dest != 10 {
t.Errorf("expected destination Int 10")
}
return nil
},
}
a.Run([]string{"run", "--dest", "10"})
}
func TestParseMultiIntFromEnv(t *testing.T) {
os.Clearenv()
os.Setenv("APP_TIMEOUT_SECONDS", "10")
a := App{
Flags: []Flag{
IntFlag{Name: "timeout, t", EnvVar: "APP_TIMEOUT_SECONDS"},
},
Action: func(ctx *Context) error {
if ctx.Int("timeout") != 10 {
t.Errorf("main name not set")
}
if ctx.Int("t") != 10 {
t.Errorf("short name not set")
}
return nil
},
}
a.Run([]string{"run"})
}
func TestParseMultiIntFromEnvCascade(t *testing.T) {
os.Clearenv()
os.Setenv("APP_TIMEOUT_SECONDS", "10")
a := App{
Flags: []Flag{
IntFlag{Name: "timeout, t", EnvVar: "COMPAT_TIMEOUT_SECONDS,APP_TIMEOUT_SECONDS"},
},
Action: func(ctx *Context) error {
if ctx.Int("timeout") != 10 {
t.Errorf("main name not set")
}
if ctx.Int("t") != 10 {
t.Errorf("short name not set")
}
return nil
},
}
a.Run([]string{"run"})
}
func TestParseMultiIntSlice(t *testing.T) {
(&App{
Flags: []Flag{
IntSliceFlag{Name: "serve, s", Value: &IntSlice{}},
},
Action: func(ctx *Context) error {
if !reflect.DeepEqual(ctx.IntSlice("serve"), []int{10, 20}) {
t.Errorf("main name not set")
}
if !reflect.DeepEqual(ctx.IntSlice("s"), []int{10, 20}) {
t.Errorf("short name not set")
}
return nil
},
}).Run([]string{"run", "-s", "10", "-s", "20"})
}
func TestParseMultiIntSliceFromEnv(t *testing.T) {
os.Clearenv()
os.Setenv("APP_INTERVALS", "20,30,40")
(&App{
Flags: []Flag{
IntSliceFlag{Name: "intervals, i", Value: &IntSlice{}, EnvVar: "APP_INTERVALS"},
},
Action: func(ctx *Context) error {
if !reflect.DeepEqual(ctx.IntSlice("intervals"), []int{20, 30, 40}) {
t.Errorf("main name not set from env")
}
if !reflect.DeepEqual(ctx.IntSlice("i"), []int{20, 30, 40}) {
t.Errorf("short name not set from env")
}
return nil
},
}).Run([]string{"run"})
}
func TestParseMultiIntSliceFromEnvCascade(t *testing.T) {
os.Clearenv()
os.Setenv("APP_INTERVALS", "20,30,40")
(&App{
Flags: []Flag{
IntSliceFlag{Name: "intervals, i", Value: &IntSlice{}, EnvVar: "COMPAT_INTERVALS,APP_INTERVALS"},
},
Action: func(ctx *Context) error {
if !reflect.DeepEqual(ctx.IntSlice("intervals"), []int{20, 30, 40}) {
t.Errorf("main name not set from env")
}
if !reflect.DeepEqual(ctx.IntSlice("i"), []int{20, 30, 40}) {
t.Errorf("short name not set from env")
}
return nil
},
}).Run([]string{"run"})
}
func TestParseMultiInt64Slice(t *testing.T) {
(&App{
Flags: []Flag{
Int64SliceFlag{Name: "serve, s", Value: &Int64Slice{}},
},
Action: func(ctx *Context) error {
if !reflect.DeepEqual(ctx.Int64Slice("serve"), []int64{10, 17179869184}) {
t.Errorf("main name not set")
}
if !reflect.DeepEqual(ctx.Int64Slice("s"), []int64{10, 17179869184}) {
t.Errorf("short name not set")
}
return nil
},
}).Run([]string{"run", "-s", "10", "-s", "17179869184"})
}
func TestParseMultiInt64SliceFromEnv(t *testing.T) {
os.Clearenv()
os.Setenv("APP_INTERVALS", "20,30,17179869184")
(&App{
Flags: []Flag{
Int64SliceFlag{Name: "intervals, i", Value: &Int64Slice{}, EnvVar: "APP_INTERVALS"},
},
Action: func(ctx *Context) error {
if !reflect.DeepEqual(ctx.Int64Slice("intervals"), []int64{20, 30, 17179869184}) {
t.Errorf("main name not set from env")
}
if !reflect.DeepEqual(ctx.Int64Slice("i"), []int64{20, 30, 17179869184}) {
t.Errorf("short name not set from env")
}
return nil
},
}).Run([]string{"run"})
}
func TestParseMultiInt64SliceFromEnvCascade(t *testing.T) {
os.Clearenv()
os.Setenv("APP_INTERVALS", "20,30,17179869184")
(&App{
Flags: []Flag{
Int64SliceFlag{Name: "intervals, i", Value: &Int64Slice{}, EnvVar: "COMPAT_INTERVALS,APP_INTERVALS"},
},
Action: func(ctx *Context) error {
if !reflect.DeepEqual(ctx.Int64Slice("intervals"), []int64{20, 30, 17179869184}) {
t.Errorf("main name not set from env")
}
if !reflect.DeepEqual(ctx.Int64Slice("i"), []int64{20, 30, 17179869184}) {
t.Errorf("short name not set from env")
}
return nil
},
}).Run([]string{"run"})
}
func TestParseMultiFloat64(t *testing.T) {
a := App{
Flags: []Flag{
Float64Flag{Name: "serve, s"},
},
Action: func(ctx *Context) error {
if ctx.Float64("serve") != 10.2 {
t.Errorf("main name not set")
}
if ctx.Float64("s") != 10.2 {
t.Errorf("short name not set")
}
return nil
},
}
a.Run([]string{"run", "-s", "10.2"})
}
func TestParseDestinationFloat64(t *testing.T) {
var dest float64
a := App{
Flags: []Flag{
Float64Flag{
Name: "dest",
Destination: &dest,
},
},
Action: func(ctx *Context) error {
if dest != 10.2 {
t.Errorf("expected destination Float64 10.2")
}
return nil
},
}
a.Run([]string{"run", "--dest", "10.2"})
}
func TestParseMultiFloat64FromEnv(t *testing.T) {
os.Clearenv()
os.Setenv("APP_TIMEOUT_SECONDS", "15.5")
a := App{
Flags: []Flag{
Float64Flag{Name: "timeout, t", EnvVar: "APP_TIMEOUT_SECONDS"},
},
Action: func(ctx *Context) error {
if ctx.Float64("timeout") != 15.5 {
t.Errorf("main name not set")
}
if ctx.Float64("t") != 15.5 {
t.Errorf("short name not set")
}
return nil
},
}
a.Run([]string{"run"})
}
func TestParseMultiFloat64FromEnvCascade(t *testing.T) {
os.Clearenv()
os.Setenv("APP_TIMEOUT_SECONDS", "15.5")
a := App{
Flags: []Flag{
Float64Flag{Name: "timeout, t", EnvVar: "COMPAT_TIMEOUT_SECONDS,APP_TIMEOUT_SECONDS"},
},
Action: func(ctx *Context) error {
if ctx.Float64("timeout") != 15.5 {
t.Errorf("main name not set")
}
if ctx.Float64("t") != 15.5 {
t.Errorf("short name not set")
}
return nil
},
}
a.Run([]string{"run"})
}
func TestParseMultiBool(t *testing.T) {
a := App{
Flags: []Flag{
BoolFlag{Name: "serve, s"},
},
Action: func(ctx *Context) error {
if ctx.Bool("serve") != true {
t.Errorf("main name not set")
}
if ctx.Bool("s") != true {
t.Errorf("short name not set")
}
return nil
},
}
a.Run([]string{"run", "--serve"})
}
func TestParseDestinationBool(t *testing.T) {
var dest bool
a := App{
Flags: []Flag{
BoolFlag{
Name: "dest",
Destination: &dest,
},
},
Action: func(ctx *Context) error {
if dest != true {
t.Errorf("expected destination Bool true")
}
return nil
},
}
a.Run([]string{"run", "--dest"})
}
func TestParseMultiBoolFromEnv(t *testing.T) {
os.Clearenv()
os.Setenv("APP_DEBUG", "1")
a := App{
Flags: []Flag{
BoolFlag{Name: "debug, d", EnvVar: "APP_DEBUG"},
},
Action: func(ctx *Context) error {
if ctx.Bool("debug") != true {
t.Errorf("main name not set from env")
}
if ctx.Bool("d") != true {
t.Errorf("short name not set from env")
}
return nil
},
}
a.Run([]string{"run"})
}
func TestParseMultiBoolFromEnvCascade(t *testing.T) {
os.Clearenv()
os.Setenv("APP_DEBUG", "1")
a := App{
Flags: []Flag{
BoolFlag{Name: "debug, d", EnvVar: "COMPAT_DEBUG,APP_DEBUG"},
},
Action: func(ctx *Context) error {
if ctx.Bool("debug") != true {
t.Errorf("main name not set from env")
}
if ctx.Bool("d") != true {
t.Errorf("short name not set from env")
}
return nil
},
}
a.Run([]string{"run"})
}
func TestParseMultiBoolT(t *testing.T) {
a := App{
Flags: []Flag{
BoolTFlag{Name: "serve, s"},
},
Action: func(ctx *Context) error {
if ctx.BoolT("serve") != true {
t.Errorf("main name not set")
}
if ctx.BoolT("s") != true {
t.Errorf("short name not set")
}
return nil
},
}
a.Run([]string{"run", "--serve"})
}
func TestParseDestinationBoolT(t *testing.T) {
var dest bool
a := App{
Flags: []Flag{
BoolTFlag{
Name: "dest",
Destination: &dest,
},
},
Action: func(ctx *Context) error {
if dest != true {
t.Errorf("expected destination BoolT true")
}
return nil
},
}
a.Run([]string{"run", "--dest"})
}
func TestParseMultiBoolTFromEnv(t *testing.T) {
os.Clearenv()
os.Setenv("APP_DEBUG", "0")
a := App{
Flags: []Flag{
BoolTFlag{Name: "debug, d", EnvVar: "APP_DEBUG"},
},
Action: func(ctx *Context) error {
if ctx.BoolT("debug") != false {
t.Errorf("main name not set from env")
}
if ctx.BoolT("d") != false {
t.Errorf("short name not set from env")
}
return nil
},
}
a.Run([]string{"run"})
}
func TestParseMultiBoolTFromEnvCascade(t *testing.T) {
os.Clearenv()
os.Setenv("APP_DEBUG", "0")
a := App{
Flags: []Flag{
BoolTFlag{Name: "debug, d", EnvVar: "COMPAT_DEBUG,APP_DEBUG"},
},
Action: func(ctx *Context) error {
if ctx.BoolT("debug") != false {
t.Errorf("main name not set from env")
}
if ctx.BoolT("d") != false {
t.Errorf("short name not set from env")
}
return nil
},
}
a.Run([]string{"run"})
}
type Parser [2]string
func (p *Parser) Set(value string) error {
parts := strings.Split(value, ",")
if len(parts) != 2 {
return fmt.Errorf("invalid format")
}
(*p)[0] = parts[0]
(*p)[1] = parts[1]
return nil
}
func (p *Parser) String() string {
return fmt.Sprintf("%s,%s", p[0], p[1])
}
func TestParseGeneric(t *testing.T) {
a := App{
Flags: []Flag{
GenericFlag{Name: "serve, s", Value: &Parser{}},
},
Action: func(ctx *Context) error {
if !reflect.DeepEqual(ctx.Generic("serve"), &Parser{"10", "20"}) {
t.Errorf("main name not set")
}
if !reflect.DeepEqual(ctx.Generic("s"), &Parser{"10", "20"}) {
t.Errorf("short name not set")
}
return nil
},
}
a.Run([]string{"run", "-s", "10,20"})
}
func TestParseGenericFromEnv(t *testing.T) {
os.Clearenv()
os.Setenv("APP_SERVE", "20,30")
a := App{
Flags: []Flag{
GenericFlag{Name: "serve, s", Value: &Parser{}, EnvVar: "APP_SERVE"},
},
Action: func(ctx *Context) error {
if !reflect.DeepEqual(ctx.Generic("serve"), &Parser{"20", "30"}) {
t.Errorf("main name not set from env")
}
if !reflect.DeepEqual(ctx.Generic("s"), &Parser{"20", "30"}) {
t.Errorf("short name not set from env")
}
return nil
},
}
a.Run([]string{"run"})
}
func TestParseGenericFromEnvCascade(t *testing.T) {
os.Clearenv()
os.Setenv("APP_FOO", "99,2000")
a := App{
Flags: []Flag{
GenericFlag{Name: "foos", Value: &Parser{}, EnvVar: "COMPAT_FOO,APP_FOO"},
},
Action: func(ctx *Context) error {
if !reflect.DeepEqual(ctx.Generic("foos"), &Parser{"99", "2000"}) {
t.Errorf("value not set from env")
}
return nil
},
}
a.Run([]string{"run"})
}
cli-1.18.0/funcs.go 0000664 0000000 0000000 00000002360 12734405620 0014021 0 ustar 00root root 0000000 0000000 package cli
// BashCompleteFunc is an action to execute when the bash-completion flag is set
type BashCompleteFunc func(*Context)
// BeforeFunc is an action to execute before any subcommands are run, but after
// the context is ready if a non-nil error is returned, no subcommands are run
type BeforeFunc func(*Context) error
// AfterFunc is an action to execute after any subcommands are run, but after the
// subcommand has finished it is run even if Action() panics
type AfterFunc func(*Context) error
// ActionFunc is the action to execute when no subcommands are specified
type ActionFunc func(*Context) error
// CommandNotFoundFunc is executed if the proper command cannot be found
type CommandNotFoundFunc func(*Context, string)
// OnUsageErrorFunc is executed if an usage error occurs. This is useful for displaying
// customized usage error messages. This function is able to replace the
// original error messages. If this function is not set, the "Incorrect usage"
// is displayed and the execution is interrupted.
type OnUsageErrorFunc func(context *Context, err error, isSubcommand bool) error
// FlagStringFunc is used by the help generation to display a flag, which is
// expected to be a single line.
type FlagStringFunc func(Flag) string
cli-1.18.0/help.go 0000664 0000000 0000000 00000015165 12734405620 0013642 0 ustar 00root root 0000000 0000000 package cli
import (
"fmt"
"io"
"os"
"strings"
"text/tabwriter"
"text/template"
)
// AppHelpTemplate is the text template for the Default help topic.
// cli.go uses text/template to render templates. You can
// render custom help text by setting this variable.
var AppHelpTemplate = `NAME:
{{.Name}} - {{.Usage}}
USAGE:
{{if .UsageText}}{{.UsageText}}{{else}}{{.HelpName}} {{if .VisibleFlags}}[global options]{{end}}{{if .Commands}} command [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}{{end}}
{{if .Version}}{{if not .HideVersion}}
VERSION:
{{.Version}}
{{end}}{{end}}{{if len .Authors}}
AUTHOR(S):
{{range .Authors}}{{.}}{{end}}
{{end}}{{if .VisibleCommands}}
COMMANDS:{{range .VisibleCategories}}{{if .Name}}
{{.Name}}:{{end}}{{range .VisibleCommands}}
{{join .Names ", "}}{{"\t"}}{{.Usage}}{{end}}
{{end}}{{end}}{{if .VisibleFlags}}
GLOBAL OPTIONS:
{{range .VisibleFlags}}{{.}}
{{end}}{{end}}{{if .Copyright}}
COPYRIGHT:
{{.Copyright}}
{{end}}
`
// CommandHelpTemplate is the text template for the command help topic.
// cli.go uses text/template to render templates. You can
// render custom help text by setting this variable.
var CommandHelpTemplate = `NAME:
{{.HelpName}} - {{.Usage}}
USAGE:
{{.HelpName}}{{if .VisibleFlags}} [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}{{if .Category}}
CATEGORY:
{{.Category}}{{end}}{{if .Description}}
DESCRIPTION:
{{.Description}}{{end}}{{if .VisibleFlags}}
OPTIONS:
{{range .VisibleFlags}}{{.}}
{{end}}{{end}}
`
// SubcommandHelpTemplate is the text template for the subcommand help topic.
// cli.go uses text/template to render templates. You can
// render custom help text by setting this variable.
var SubcommandHelpTemplate = `NAME:
{{.HelpName}} - {{.Usage}}
USAGE:
{{.HelpName}} command{{if .VisibleFlags}} [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}
COMMANDS:{{range .VisibleCategories}}{{if .Name}}
{{.Name}}:{{end}}{{range .VisibleCommands}}
{{join .Names ", "}}{{"\t"}}{{.Usage}}{{end}}
{{end}}{{if .VisibleFlags}}
OPTIONS:
{{range .VisibleFlags}}{{.}}
{{end}}{{end}}
`
var helpCommand = Command{
Name: "help",
Aliases: []string{"h"},
Usage: "Shows a list of commands or help for one command",
ArgsUsage: "[command]",
Action: func(c *Context) error {
args := c.Args()
if args.Present() {
return ShowCommandHelp(c, args.First())
}
ShowAppHelp(c)
return nil
},
}
var helpSubcommand = Command{
Name: "help",
Aliases: []string{"h"},
Usage: "Shows a list of commands or help for one command",
ArgsUsage: "[command]",
Action: func(c *Context) error {
args := c.Args()
if args.Present() {
return ShowCommandHelp(c, args.First())
}
return ShowSubcommandHelp(c)
},
}
// Prints help for the App or Command
type helpPrinter func(w io.Writer, templ string, data interface{})
// HelpPrinter is a function that writes the help output. If not set a default
// is used. The function signature is:
// func(w io.Writer, templ string, data interface{})
var HelpPrinter helpPrinter = printHelp
// VersionPrinter prints the version for the App
var VersionPrinter = printVersion
// ShowAppHelp is an action that displays the help.
func ShowAppHelp(c *Context) error {
HelpPrinter(c.App.Writer, AppHelpTemplate, c.App)
return nil
}
// DefaultAppComplete prints the list of subcommands as the default app completion method
func DefaultAppComplete(c *Context) {
for _, command := range c.App.Commands {
if command.Hidden {
continue
}
for _, name := range command.Names() {
fmt.Fprintln(c.App.Writer, name)
}
}
}
// ShowCommandHelp prints help for the given command
func ShowCommandHelp(ctx *Context, command string) error {
// show the subcommand help for a command with subcommands
if command == "" {
HelpPrinter(ctx.App.Writer, SubcommandHelpTemplate, ctx.App)
return nil
}
for _, c := range ctx.App.Commands {
if c.HasName(command) {
HelpPrinter(ctx.App.Writer, CommandHelpTemplate, c)
return nil
}
}
if ctx.App.CommandNotFound == nil {
return NewExitError(fmt.Sprintf("No help topic for '%v'", command), 3)
}
ctx.App.CommandNotFound(ctx, command)
return nil
}
// ShowSubcommandHelp prints help for the given subcommand
func ShowSubcommandHelp(c *Context) error {
return ShowCommandHelp(c, c.Command.Name)
}
// ShowVersion prints the version number of the App
func ShowVersion(c *Context) {
VersionPrinter(c)
}
func printVersion(c *Context) {
fmt.Fprintf(c.App.Writer, "%v version %v\n", c.App.Name, c.App.Version)
}
// ShowCompletions prints the lists of commands within a given context
func ShowCompletions(c *Context) {
a := c.App
if a != nil && a.BashComplete != nil {
a.BashComplete(c)
}
}
// ShowCommandCompletions prints the custom completions for a given command
func ShowCommandCompletions(ctx *Context, command string) {
c := ctx.App.Command(command)
if c != nil && c.BashComplete != nil {
c.BashComplete(ctx)
}
}
func printHelp(out io.Writer, templ string, data interface{}) {
funcMap := template.FuncMap{
"join": strings.Join,
}
w := tabwriter.NewWriter(out, 1, 8, 2, ' ', 0)
t := template.Must(template.New("help").Funcs(funcMap).Parse(templ))
err := t.Execute(w, data)
if err != nil {
// If the writer is closed, t.Execute will fail, and there's nothing
// we can do to recover.
if os.Getenv("CLI_TEMPLATE_ERROR_DEBUG") != "" {
fmt.Fprintf(ErrWriter, "CLI TEMPLATE ERROR: %#v\n", err)
}
return
}
w.Flush()
}
func checkVersion(c *Context) bool {
found := false
if VersionFlag.Name != "" {
eachName(VersionFlag.Name, func(name string) {
if c.GlobalBool(name) || c.Bool(name) {
found = true
}
})
}
return found
}
func checkHelp(c *Context) bool {
found := false
if HelpFlag.Name != "" {
eachName(HelpFlag.Name, func(name string) {
if c.GlobalBool(name) || c.Bool(name) {
found = true
}
})
}
return found
}
func checkCommandHelp(c *Context, name string) bool {
if c.Bool("h") || c.Bool("help") {
ShowCommandHelp(c, name)
return true
}
return false
}
func checkSubcommandHelp(c *Context) bool {
if c.GlobalBool("h") || c.GlobalBool("help") {
ShowSubcommandHelp(c)
return true
}
return false
}
func checkCompletions(c *Context) bool {
if (c.GlobalBool(BashCompletionFlag.Name) || c.Bool(BashCompletionFlag.Name)) && c.App.EnableBashCompletion {
ShowCompletions(c)
return true
}
return false
}
func checkCommandCompletions(c *Context, name string) bool {
if c.Bool(BashCompletionFlag.Name) && c.App.EnableBashCompletion {
ShowCommandCompletions(c, name)
return true
}
return false
}
cli-1.18.0/help_test.go 0000664 0000000 0000000 00000014040 12734405620 0014670 0 ustar 00root root 0000000 0000000 package cli
import (
"bytes"
"flag"
"strings"
"testing"
)
func Test_ShowAppHelp_NoAuthor(t *testing.T) {
output := new(bytes.Buffer)
app := NewApp()
app.Writer = output
c := NewContext(app, nil, nil)
ShowAppHelp(c)
if bytes.Index(output.Bytes(), []byte("AUTHOR(S):")) != -1 {
t.Errorf("expected\n%snot to include %s", output.String(), "AUTHOR(S):")
}
}
func Test_ShowAppHelp_NoVersion(t *testing.T) {
output := new(bytes.Buffer)
app := NewApp()
app.Writer = output
app.Version = ""
c := NewContext(app, nil, nil)
ShowAppHelp(c)
if bytes.Index(output.Bytes(), []byte("VERSION:")) != -1 {
t.Errorf("expected\n%snot to include %s", output.String(), "VERSION:")
}
}
func Test_ShowAppHelp_HideVersion(t *testing.T) {
output := new(bytes.Buffer)
app := NewApp()
app.Writer = output
app.HideVersion = true
c := NewContext(app, nil, nil)
ShowAppHelp(c)
if bytes.Index(output.Bytes(), []byte("VERSION:")) != -1 {
t.Errorf("expected\n%snot to include %s", output.String(), "VERSION:")
}
}
func Test_Help_Custom_Flags(t *testing.T) {
oldFlag := HelpFlag
defer func() {
HelpFlag = oldFlag
}()
HelpFlag = BoolFlag{
Name: "help, x",
Usage: "show help",
}
app := App{
Flags: []Flag{
BoolFlag{Name: "foo, h"},
},
Action: func(ctx *Context) error {
if ctx.Bool("h") != true {
t.Errorf("custom help flag not set")
}
return nil
},
}
output := new(bytes.Buffer)
app.Writer = output
app.Run([]string{"test", "-h"})
if output.Len() > 0 {
t.Errorf("unexpected output: %s", output.String())
}
}
func Test_Version_Custom_Flags(t *testing.T) {
oldFlag := VersionFlag
defer func() {
VersionFlag = oldFlag
}()
VersionFlag = BoolFlag{
Name: "version, V",
Usage: "show version",
}
app := App{
Flags: []Flag{
BoolFlag{Name: "foo, v"},
},
Action: func(ctx *Context) error {
if ctx.Bool("v") != true {
t.Errorf("custom version flag not set")
}
return nil
},
}
output := new(bytes.Buffer)
app.Writer = output
app.Run([]string{"test", "-v"})
if output.Len() > 0 {
t.Errorf("unexpected output: %s", output.String())
}
}
func Test_helpCommand_Action_ErrorIfNoTopic(t *testing.T) {
app := NewApp()
set := flag.NewFlagSet("test", 0)
set.Parse([]string{"foo"})
c := NewContext(app, set, nil)
err := helpCommand.Action.(func(*Context) error)(c)
if err == nil {
t.Fatalf("expected error from helpCommand.Action(), but got nil")
}
exitErr, ok := err.(*ExitError)
if !ok {
t.Fatalf("expected ExitError from helpCommand.Action(), but instead got: %v", err.Error())
}
if !strings.HasPrefix(exitErr.Error(), "No help topic for") {
t.Fatalf("expected an unknown help topic error, but got: %v", exitErr.Error())
}
if exitErr.exitCode != 3 {
t.Fatalf("expected exit value = 3, got %d instead", exitErr.exitCode)
}
}
func Test_helpCommand_InHelpOutput(t *testing.T) {
app := NewApp()
output := &bytes.Buffer{}
app.Writer = output
app.Run([]string{"test", "--help"})
s := output.String()
if strings.Contains(s, "\nCOMMANDS:\nGLOBAL OPTIONS:\n") {
t.Fatalf("empty COMMANDS section detected: %q", s)
}
if !strings.Contains(s, "help, h") {
t.Fatalf("missing \"help, h\": %q", s)
}
}
func Test_helpSubcommand_Action_ErrorIfNoTopic(t *testing.T) {
app := NewApp()
set := flag.NewFlagSet("test", 0)
set.Parse([]string{"foo"})
c := NewContext(app, set, nil)
err := helpSubcommand.Action.(func(*Context) error)(c)
if err == nil {
t.Fatalf("expected error from helpCommand.Action(), but got nil")
}
exitErr, ok := err.(*ExitError)
if !ok {
t.Fatalf("expected ExitError from helpCommand.Action(), but instead got: %v", err.Error())
}
if !strings.HasPrefix(exitErr.Error(), "No help topic for") {
t.Fatalf("expected an unknown help topic error, but got: %v", exitErr.Error())
}
if exitErr.exitCode != 3 {
t.Fatalf("expected exit value = 3, got %d instead", exitErr.exitCode)
}
}
func TestShowAppHelp_CommandAliases(t *testing.T) {
app := &App{
Commands: []Command{
{
Name: "frobbly",
Aliases: []string{"fr", "frob"},
Action: func(ctx *Context) error {
return nil
},
},
},
}
output := &bytes.Buffer{}
app.Writer = output
app.Run([]string{"foo", "--help"})
if !strings.Contains(output.String(), "frobbly, fr, frob") {
t.Errorf("expected output to include all command aliases; got: %q", output.String())
}
}
func TestShowCommandHelp_CommandAliases(t *testing.T) {
app := &App{
Commands: []Command{
{
Name: "frobbly",
Aliases: []string{"fr", "frob", "bork"},
Action: func(ctx *Context) error {
return nil
},
},
},
}
output := &bytes.Buffer{}
app.Writer = output
app.Run([]string{"foo", "help", "fr"})
if !strings.Contains(output.String(), "frobbly") {
t.Errorf("expected output to include command name; got: %q", output.String())
}
if strings.Contains(output.String(), "bork") {
t.Errorf("expected output to exclude command aliases; got: %q", output.String())
}
}
func TestShowSubcommandHelp_CommandAliases(t *testing.T) {
app := &App{
Commands: []Command{
{
Name: "frobbly",
Aliases: []string{"fr", "frob", "bork"},
Action: func(ctx *Context) error {
return nil
},
},
},
}
output := &bytes.Buffer{}
app.Writer = output
app.Run([]string{"foo", "help"})
if !strings.Contains(output.String(), "frobbly, fr, frob, bork") {
t.Errorf("expected output to include all command aliases; got: %q", output.String())
}
}
func TestShowAppHelp_HiddenCommand(t *testing.T) {
app := &App{
Commands: []Command{
{
Name: "frobbly",
Action: func(ctx *Context) error {
return nil
},
},
{
Name: "secretfrob",
Hidden: true,
Action: func(ctx *Context) error {
return nil
},
},
},
}
output := &bytes.Buffer{}
app.Writer = output
app.Run([]string{"app", "--help"})
if strings.Contains(output.String(), "secretfrob") {
t.Errorf("expected output to exclude \"secretfrob\"; got: %q", output.String())
}
if !strings.Contains(output.String(), "frobbly") {
t.Errorf("expected output to include \"frobbly\"; got: %q", output.String())
}
}
cli-1.18.0/helpers_test.go 0000664 0000000 0000000 00000001122 12734405620 0015377 0 ustar 00root root 0000000 0000000 package cli
import (
"os"
"reflect"
"runtime"
"strings"
"testing"
)
var (
wd, _ = os.Getwd()
)
func expect(t *testing.T, a interface{}, b interface{}) {
_, fn, line, _ := runtime.Caller(1)
fn = strings.Replace(fn, wd+"/", "", -1)
if !reflect.DeepEqual(a, b) {
t.Errorf("(%s:%d) Expected %v (type %v) - Got %v (type %v)", fn, line, b, reflect.TypeOf(b), a, reflect.TypeOf(a))
}
}
func refute(t *testing.T, a interface{}, b interface{}) {
if reflect.DeepEqual(a, b) {
t.Errorf("Did not expect %v (type %v) - Got %v (type %v)", b, reflect.TypeOf(b), a, reflect.TypeOf(a))
}
}
cli-1.18.0/runtests 0000775 0000000 0000000 00000004576 12734405620 0014204 0 ustar 00root root 0000000 0000000 #!/usr/bin/env python
from __future__ import print_function
import argparse
import os
import sys
import tempfile
from subprocess import check_call, check_output
PACKAGE_NAME = os.environ.get(
'CLI_PACKAGE_NAME', 'github.com/urfave/cli'
)
def main(sysargs=sys.argv[:]):
targets = {
'vet': _vet,
'test': _test,
'gfmxr': _gfmxr,
'toc': _toc,
}
parser = argparse.ArgumentParser()
parser.add_argument(
'target', nargs='?', choices=tuple(targets.keys()), default='test'
)
args = parser.parse_args(sysargs[1:])
targets[args.target]()
return 0
def _test():
if check_output('go version'.split()).split()[2] < 'go1.2':
_run('go test -v .'.split())
return
coverprofiles = []
for subpackage in ['', 'altsrc']:
coverprofile = 'cli.coverprofile'
if subpackage != '':
coverprofile = '{}.coverprofile'.format(subpackage)
coverprofiles.append(coverprofile)
_run('go test -v'.split() + [
'-coverprofile={}'.format(coverprofile),
('{}/{}'.format(PACKAGE_NAME, subpackage)).rstrip('/')
])
combined_name = _combine_coverprofiles(coverprofiles)
_run('go tool cover -func={}'.format(combined_name).split())
os.remove(combined_name)
def _gfmxr():
_run(['gfmxr', '-c', str(_gfmxr_count()), '-s', 'README.md'])
def _vet():
_run('go vet ./...'.split())
def _toc():
_run(['node_modules/.bin/markdown-toc', '-i', 'README.md'])
_run(['git', 'diff', '--quiet'])
def _run(command):
print('runtests: {}'.format(' '.join(command)), file=sys.stderr)
check_call(command)
def _gfmxr_count():
with open('README.md') as infile:
lines = infile.read().splitlines()
return len(filter(_is_go_runnable, lines))
def _is_go_runnable(line):
return line.startswith('package main')
def _combine_coverprofiles(coverprofiles):
combined = tempfile.NamedTemporaryFile(
suffix='.coverprofile', delete=False
)
combined.write('mode: set\n')
for coverprofile in coverprofiles:
with open(coverprofile, 'r') as infile:
for line in infile.readlines():
if not line.startswith('mode: '):
combined.write(line)
combined.flush()
name = combined.name
combined.close()
return name
if __name__ == '__main__':
sys.exit(main())