k-space/dex
Archived
11
0
Fork 0
Code Issues Pull Requests Packages Projects Activity

vendor: revendor

Browse Source
This commit is contained in:
Eric Chiang
2016-12-22 11:39:28 -08:00
parent d87a4c35b9
commit 1451213dd7
268 changed files with 484 additions and 59530 deletions
Download Patch File Download Diff File Expand all files Collapse all files

36
vendor/github.com/spf13/cobra/.gitignore generated vendored
View File

@@ -1,36 +0,0 @@
# Compiled Object files, Static and Dynamic libs (Shared Objects)
*.o
*.a
*.so
# Folders
_obj
_test
# Architecture specific extensions/prefixes
*.[568vq]
[568vq].out
*.cgo1.go
*.cgo2.c
_cgo_defun.c
_cgo_gotypes.go
_cgo_export.*
_testmain.go
# Vim files https://github.com/github/gitignore/blob/master/Global/Vim.gitignore
# swap
[._]*.s[a-w][a-z]
[._]s[a-w][a-z]
# session
Session.vim
# temporary
.netrwhist
*~
# auto-generated tag files
tags
*.exe
cobra.test

3
vendor/github.com/spf13/cobra/.mailmap generated vendored
View File

@@ -1,3 +0,0 @@
Steve Francia <steve.francia@gmail.com>
Bjørn Erik Pedersen <bjorn.erik.pedersen@gmail.com>
Fabiano Franz <ffranz@redhat.com> <contact@fabianofranz.com>

18
vendor/github.com/spf13/cobra/.travis.yml generated vendored
View File

@@ -1,18 +0,0 @@
language: go
go:
- 1.4.3
- 1.5.4
- 1.6.2
- tip
matrix:
allow_failures:
- go: tip
before_install:
- mkdir -p bin
- curl -Lso bin/shellcheck https://github.com/caarlos0/shellcheck-docker/releases/download/v0.4.3/shellcheck
- chmod +x bin/shellcheck
script:
- PATH=$PATH:$PWD/bin go test -v ./...
- go build

892
vendor/github.com/spf13/cobra/README.md generated vendored
View File

@@ -1,892 +0,0 @@
![cobra logo](https://cloud.githubusercontent.com/assets/173412/10886352/ad566232-814f-11e5-9cd0-aa101788c117.png)
Cobra is both a library for creating powerful modern CLI applications as well as a program to generate applications and command files.
Many of the most widely used Go projects are built using Cobra including:
* [Kubernetes](http://kubernetes.io/)
* [Hugo](http://gohugo.io)
* [rkt](https://github.com/coreos/rkt)
* [etcd](https://github.com/coreos/etcd)
* [Docker (distribution)](https://github.com/docker/distribution)
* [OpenShift](https://www.openshift.com/)
* [Delve](https://github.com/derekparker/delve)
* [GopherJS](http://www.gopherjs.org/)
* [CockroachDB](http://www.cockroachlabs.com/)
* [Bleve](http://www.blevesearch.com/)
* [ProjectAtomic (enterprise)](http://www.projectatomic.io/)
* [Parse (CLI)](https://parse.com/)
* [GiantSwarm's swarm](https://github.com/giantswarm/cli)
* [Nanobox](https://github.com/nanobox-io/nanobox)/[Nanopack](https://github.com/nanopack)
[![Build Status](https://travis-ci.org/spf13/cobra.svg "Travis CI status")](https://travis-ci.org/spf13/cobra)
[![CircleCI status](https://circleci.com/gh/spf13/cobra.png?circle-token=:circle-token "CircleCI status")](https://circleci.com/gh/spf13/cobra)
[![GoDoc](https://godoc.org/github.com/spf13/cobra?status.svg)](https://godoc.org/github.com/spf13/cobra)
![cobra](https://cloud.githubusercontent.com/assets/173412/10911369/84832a8e-8212-11e5-9f82-cc96660a4794.gif)
# Overview
Cobra is a library providing a simple interface to create powerful modern CLI
interfaces similar to git & go tools.
Cobra is also an application that will generate your application scaffolding to rapidly
develop a Cobra-based application.
Cobra provides:
* Easy subcommand-based CLIs: `app server`, `app fetch`, etc.
* Fully POSIX-compliant flags (including short & long versions)
* Nested subcommands
* Global, local and cascading flags
* Easy generation of applications & commands with `cobra create appname` & `cobra add cmdname`
* Intelligent suggestions (`app srver`... did you mean `app server`?)
* Automatic help generation for commands and flags
* Automatic detailed help for `app help [command]`
* Automatic help flag recognition of `-h`, `--help`, etc.
* Automatically generated bash autocomplete for your application
* Automatically generated man pages for your application
* Command aliases so you can change things without breaking them
* The flexibilty to define your own help, usage, etc.
* Optional tight integration with [viper](http://github.com/spf13/viper) for 12-factor apps
Cobra has an exceptionally clean interface and simple design without needless
constructors or initialization methods.
Applications built with Cobra commands are designed to be as user-friendly as
possible. Flags can be placed before or after the command (as long as a
confusing space isn’t provided). Both short and long flags can be used. A
command need not even be fully typed. Help is automatically generated and
available for the application or for a specific command using either the help
command or the `--help` flag.
# Concepts
Cobra is built on a structure of commands, arguments & flags.
**Commands** represent actions, **Args** are things and **Flags** are modifiers for those actions.
The best applications will read like sentences when used. Users will know how
to use the application because they will natively understand how to use it.
The pattern to follow is
`APPNAME VERB NOUN --ADJECTIVE.`
or
`APPNAME COMMAND ARG --FLAG`
A few good real world examples may better illustrate this point.
In the following example, 'server' is a command, and 'port' is a flag:
> hugo server --port=1313
In this command we are telling Git to clone the url bare.
> git clone URL --bare
## Commands
Command is the central point of the application. Each interaction that
the application supports will be contained in a Command. A command can
have children commands and optionally run an action.
In the example above, 'server' is the command.
A Command has the following structure:
```go
type Command struct {
Use string // The one-line usage message.
Short string // The short description shown in the 'help' output.
Long string // The long message shown in the 'help <this-command>' output.
Run func(cmd *Command, args []string) // Run runs the command.
}
```
## Flags
A Flag is a way to modify the behavior of a command. Cobra supports
fully POSIX-compliant flags as well as the Go [flag package](https://golang.org/pkg/flag/).
A Cobra command can define flags that persist through to children commands
and flags that are only available to that command.
In the example above, 'port' is the flag.
Flag functionality is provided by the [pflag
library](https://github.com/ogier/pflag), a fork of the flag standard library
which maintains the same interface while adding POSIX compliance.
## Usage
Cobra works by creating a set of commands and then organizing them into a tree.
The tree defines the structure of the application.
Once each command is defined with its corresponding flags, then the
tree is assigned to the commander which is finally executed.
# Installing
Using Cobra is easy. First, use `go get` to install the latest version
of the library. This command will install the `cobra` generator executible
along with the library:
> go get -v github.com/spf13/cobra/cobra
Next, include Cobra in your application:
```go
import "github.com/spf13/cobra"
```
# Getting Started
While you are welcome to provide your own organization, typically a Cobra based
application will follow the following organizational structure.
```
▾ appName/
▾ cmd/
add.go
your.go
commands.go
here.go
main.go
```
In a Cobra app, typically the main.go file is very bare. It serves, one purpose, to initialize Cobra.
```go
package main
import "{pathToYourApp}/cmd"
func main() {
if err := cmd.RootCmd.Execute(); err != nil {
fmt.Println(err)
os.Exit(-1)
}
}
```
## Using the Cobra Generator
Cobra provides its own program that will create your application and add any
commands you want. It's the easiest way to incorporate Cobra into your application.
### cobra init
The `cobra init [yourApp]` command will create your initial application code
for you. It is a very powerful application that will populate your program with
the right structure so you can immediately enjoy all the benefits of Cobra. It
will also automatically apply the license you specify to your application.
Cobra init is pretty smart. You can provide it a full path, or simply a path
similar to what is expected in the import.
```
cobra init github.com/spf13/newAppName
```
### cobra add
Once an application is initialized Cobra can create additional commands for you.
Let's say you created an app and you wanted the following commands for it:
* app serve
* app config
* app config create
In your project directory (where your main.go file is) you would run the following:
```
cobra add serve
cobra add config
cobra add create -p 'configCmd'
```
Once you have run these three commands you would have an app structure that would look like:
```
▾ app/
▾ cmd/
serve.go
config.go
create.go
main.go
```
at this point you can run `go run main.go` and it would run your app. `go run
main.go serve`, `go run main.go config`, `go run main.go config create` along
with `go run main.go help serve`, etc would all work.
Obviously you haven't added your own code to these yet, the commands are ready
for you to give them their tasks. Have fun.
### Configuring the cobra generator
The cobra generator will be easier to use if you provide a simple configuration
file which will help you eliminate providing a bunch of repeated information in
flags over and over.
An example ~/.cobra.yaml file:
```yaml
author: Steve Francia <spf@spf13.com>
license: MIT
```
You can specify no license by setting `license` to `none` or you can specify
a custom license:
```yaml
license:
header: This file is part of {{ .appName }}.
text: |
{{ .copyright }}
This is my license. There are many like it, but this one is mine.
My license is my best friend. It is my life. I must master it as I must
master my life.
```
## Manually implementing Cobra
To manually implement cobra you need to create a bare main.go file and a RootCmd file.
You will optionally provide additional commands as you see fit.
### Create the root command
The root command represents your binary itself.
#### Manually create rootCmd
Cobra doesn't require any special constructors. Simply create your commands.
Ideally you place this in app/cmd/root.go:
```go
var RootCmd = &cobra.Command{
Use: "hugo",
Short: "Hugo is a very fast static site generator",
Long: `A Fast and Flexible Static Site Generator built with
love by spf13 and friends in Go.
Complete documentation is available at http://hugo.spf13.com`,
Run: func(cmd *cobra.Command, args []string) {
// Do Stuff Here
},
}
```
You will additionally define flags and handle configuration in your init() function.
for example cmd/root.go:
```go
func init() {
cobra.OnInitialize(initConfig)
RootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.cobra.yaml)")
RootCmd.PersistentFlags().StringVarP(&projectBase, "projectbase", "b", "", "base project directory eg. github.com/spf13/")
RootCmd.PersistentFlags().StringP("author", "a", "YOUR NAME", "Author name for copyright attribution")
RootCmd.PersistentFlags().StringVarP(&userLicense, "license", "l", "", "Name of license for the project (can provide `licensetext` in config)")
RootCmd.PersistentFlags().Bool("viper", true, "Use Viper for configuration")
viper.BindPFlag("author", RootCmd.PersistentFlags().Lookup("author"))
viper.BindPFlag("projectbase", RootCmd.PersistentFlags().Lookup("projectbase"))
viper.BindPFlag("useViper", RootCmd.PersistentFlags().Lookup("viper"))
viper.SetDefault("author", "NAME HERE <EMAIL ADDRESS>")
viper.SetDefault("license", "apache")
}
```
### Create your main.go
With the root command you need to have your main function execute it.
Execute should be run on the root for clarity, though it can be called on any command.
In a Cobra app, typically the main.go file is very bare. It serves, one purpose, to initialize Cobra.
```go
package main
import "{pathToYourApp}/cmd"
func main() {
if err := cmd.RootCmd.Execute(); err != nil {
fmt.Println(err)
os.Exit(-1)
}
}
```
### Create additional commands
Additional commands can be defined and typically are each given their own file
inside of the cmd/ directory.
If you wanted to create a version command you would create cmd/version.go and
populate it with the following:
```go
package cmd
import (
"github.com/spf13/cobra"
)
func init() {
RootCmd.AddCommand(versionCmd)
}
var versionCmd = &cobra.Command{
Use: "version",
Short: "Print the version number of Hugo",
Long: `All software has versions. This is Hugo's`,
Run: func(cmd *cobra.Command, args []string) {
fmt.Println("Hugo Static Site Generator v0.9 -- HEAD")
},
}
```
### Attach command to its parent
If you notice in the above example we attach the command to its parent. In
this case the parent is the rootCmd. In this example we are attaching it to the
root, but commands can be attached at any level.
```go
RootCmd.AddCommand(versionCmd)
```
### Remove a command from its parent
Removing a command is not a common action in simple programs, but it allows 3rd
parties to customize an existing command tree.
In this example, we remove the existing `VersionCmd` command of an existing
root command, and we replace it with our own version:
```go
mainlib.RootCmd.RemoveCommand(mainlib.VersionCmd)
mainlib.RootCmd.AddCommand(versionCmd)
```
## Working with Flags
Flags provide modifiers to control how the action command operates.
### Assign flags to a command
Since the flags are defined and used in different locations, we need to
define a variable outside with the correct scope to assign the flag to
work with.
```go
var Verbose bool
var Source string
```
There are two different approaches to assign a flag.
### Persistent Flags
A flag can be 'persistent' meaning that this flag will be available to the
command it's assigned to as well as every command under that command. For
global flags, assign a flag as a persistent flag on the root.
```go
RootCmd.PersistentFlags().BoolVarP(&Verbose, "verbose", "v", false, "verbose output")
```
### Local Flags
A flag can also be assigned locally which will only apply to that specific command.
```go
RootCmd.Flags().StringVarP(&Source, "source", "s", "", "Source directory to read from")
```
## Example
In the example below, we have defined three commands. Two are at the top level
and one (cmdTimes) is a child of one of the top commands. In this case the root
is not executable meaning that a subcommand is required. This is accomplished
by not providing a 'Run' for the 'rootCmd'.
We have only defined one flag for a single command.
More documentation about flags is available at https://github.com/spf13/pflag
```go
package main
import (
"fmt"
"strings"
"github.com/spf13/cobra"
)
func main() {
var echoTimes int
var cmdPrint = &cobra.Command{
Use: "print [string to print]",
Short: "Print anything to the screen",
Long: `print is for printing anything back to the screen.
For many years people have printed back to the screen.
`,
Run: func(cmd *cobra.Command, args []string) {
fmt.Println("Print: " + strings.Join(args, " "))
},
}
var cmdEcho = &cobra.Command{
Use: "echo [string to echo]",
Short: "Echo anything to the screen",
Long: `echo is for echoing anything back.
Echo works a lot like print, except it has a child command.
`,
Run: func(cmd *cobra.Command, args []string) {
fmt.Println("Print: " + strings.Join(args, " "))
},
}
var cmdTimes = &cobra.Command{
Use: "times [# times] [string to echo]",
Short: "Echo anything to the screen more times",
Long: `echo things multiple times back to the user by providing
a count and a string.`,
Run: func(cmd *cobra.Command, args []string) {
for i := 0; i < echoTimes; i++ {
fmt.Println("Echo: " + strings.Join(args, " "))
}
},
}
cmdTimes.Flags().IntVarP(&echoTimes, "times", "t", 1, "times to echo the input")
var rootCmd = &cobra.Command{Use: "app"}
rootCmd.AddCommand(cmdPrint, cmdEcho)
cmdEcho.AddCommand(cmdTimes)
rootCmd.Execute()
}
```
For a more complete example of a larger application, please checkout [Hugo](http://gohugo.io/).
## The Help Command
Cobra automatically adds a help command to your application when you have subcommands.
This will be called when a user runs 'app help'. Additionally, help will also
support all other commands as input. Say, for instance, you have a command called
'create' without any additional configuration; Cobra will work when 'app help
create' is called. Every command will automatically have the '--help' flag added.
### Example
The following output is automatically generated by Cobra. Nothing beyond the
command and flag definitions are needed.
> hugo help
hugo is the main command, used to build your Hugo site.
Hugo is a Fast and Flexible Static Site Generator
built with love by spf13 and friends in Go.
Complete documentation is available at http://gohugo.io/.
Usage:
hugo [flags]
hugo [command]
Available Commands:
server Hugo runs its own webserver to render the files
version Print the version number of Hugo
config Print the site configuration
check Check content in the source directory
benchmark Benchmark hugo by building a site a number of times.
convert Convert your content to different formats
new Create new content for your site
list Listing out various types of content
undraft Undraft changes the content's draft status from 'True' to 'False'
genautocomplete Generate shell autocompletion script for Hugo
gendoc Generate Markdown documentation for the Hugo CLI.
genman Generate man page for Hugo
import Import your site from others.
Flags:
-b, --baseURL="": hostname (and path) to the root, e.g. http://spf13.com/
-D, --buildDrafts[=false]: include content marked as draft
-F, --buildFuture[=false]: include content with publishdate in the future
--cacheDir="": filesystem path to cache directory. Defaults: $TMPDIR/hugo_cache/
--canonifyURLs[=false]: if true, all relative URLs will be canonicalized using baseURL
--config="": config file (default is path/config.yaml|json|toml)
-d, --destination="": filesystem path to write files to
--disableRSS[=false]: Do not build RSS files
--disableSitemap[=false]: Do not build Sitemap file
--editor="": edit new content with this editor, if provided
--ignoreCache[=false]: Ignores the cache directory for reading but still writes to it
--log[=false]: Enable Logging
--logFile="": Log File path (if set, logging enabled automatically)
--noTimes[=false]: Don't sync modification time of files
--pluralizeListTitles[=true]: Pluralize titles in lists using inflect
--preserveTaxonomyNames[=false]: Preserve taxonomy names as written ("Gérard Depardieu" vs "gerard-depardieu")
-s, --source="": filesystem path to read files relative from
--stepAnalysis[=false]: display memory and timing of different steps of the program
-t, --theme="": theme to use (located in /themes/THEMENAME/)
--uglyURLs[=false]: if true, use /filename.html instead of /filename/
-v, --verbose[=false]: verbose output
--verboseLog[=false]: verbose logging
-w, --watch[=false]: watch filesystem for changes and recreate as needed
Use "hugo [command] --help" for more information about a command.
Help is just a command like any other. There is no special logic or behavior
around it. In fact, you can provide your own if you want.
### Defining your own help
You can provide your own Help command or your own template for the default command to use.
The default help command is
```go
func (c *Command) initHelp() {
if c.helpCommand == nil {
c.helpCommand = &Command{
Use: "help [command]",
Short: "Help about any command",
Long: `Help provides help for any command in the application.
Simply type ` + c.Name() + ` help [path to command] for full details.`,
Run: c.HelpFunc(),
}
}
c.AddCommand(c.helpCommand)
}
```
You can provide your own command, function or template through the following methods:
```go
command.SetHelpCommand(cmd *Command)
command.SetHelpFunc(f func(*Command, []string))
command.SetHelpTemplate(s string)
```
The latter two will also apply to any children commands.
## Usage
When the user provides an invalid flag or invalid command, Cobra responds by
showing the user the 'usage'.
### Example
You may recognize this from the help above. That's because the default help
embeds the usage as part of its output.
Usage:
hugo [flags]
hugo [command]
Available Commands:
server Hugo runs its own webserver to render the files
version Print the version number of Hugo
config Print the site configuration
check Check content in the source directory
benchmark Benchmark hugo by building a site a number of times.
convert Convert your content to different formats
new Create new content for your site
list Listing out various types of content
undraft Undraft changes the content's draft status from 'True' to 'False'
genautocomplete Generate shell autocompletion script for Hugo
gendoc Generate Markdown documentation for the Hugo CLI.
genman Generate man page for Hugo
import Import your site from others.
Flags:
-b, --baseURL="": hostname (and path) to the root, e.g. http://spf13.com/
-D, --buildDrafts[=false]: include content marked as draft
-F, --buildFuture[=false]: include content with publishdate in the future
--cacheDir="": filesystem path to cache directory. Defaults: $TMPDIR/hugo_cache/
--canonifyURLs[=false]: if true, all relative URLs will be canonicalized using baseURL
--config="": config file (default is path/config.yaml|json|toml)
-d, --destination="": filesystem path to write files to
--disableRSS[=false]: Do not build RSS files
--disableSitemap[=false]: Do not build Sitemap file
--editor="": edit new content with this editor, if provided
--ignoreCache[=false]: Ignores the cache directory for reading but still writes to it
--log[=false]: Enable Logging
--logFile="": Log File path (if set, logging enabled automatically)
--noTimes[=false]: Don't sync modification time of files
--pluralizeListTitles[=true]: Pluralize titles in lists using inflect
--preserveTaxonomyNames[=false]: Preserve taxonomy names as written ("Gérard Depardieu" vs "gerard-depardieu")
-s, --source="": filesystem path to read files relative from
--stepAnalysis[=false]: display memory and timing of different steps of the program
-t, --theme="": theme to use (located in /themes/THEMENAME/)
--uglyURLs[=false]: if true, use /filename.html instead of /filename/
-v, --verbose[=false]: verbose output
--verboseLog[=false]: verbose logging
-w, --watch[=false]: watch filesystem for changes and recreate as needed
### Defining your own usage
You can provide your own usage function or template for Cobra to use.
The default usage function is:
```go
return func(c *Command) error {
err := tmpl(c.Out(), c.UsageTemplate(), c)
return err
}
```
Like help, the function and template are overridable through public methods:
```go
command.SetUsageFunc(f func(*Command) error)
command.SetUsageTemplate(s string)
```
## PreRun or PostRun Hooks
It is possible to run functions before or after the main `Run` function of your command. The `PersistentPreRun` and `PreRun` functions will be executed before `Run`. `PersistentPostRun` and `PostRun` will be executed after `Run`. The `Persistent*Run` functions will be inherrited by children if they do not declare their own. These function are run in the following order:
- `PersistentPreRun`
- `PreRun`
- `Run`
- `PostRun`
- `PersistentPostRun`
An example of two commands which use all of these features is below. When the subcommand is executed, it will run the root command's `PersistentPreRun` but not the root command's `PersistentPostRun`:
```go
package main
import (
"fmt"
"github.com/spf13/cobra"
)
func main() {
var rootCmd = &cobra.Command{
Use: "root [sub]",
Short: "My root command",
PersistentPreRun: func(cmd *cobra.Command, args []string) {
fmt.Printf("Inside rootCmd PersistentPreRun with args: %v\n", args)
},
PreRun: func(cmd *cobra.Command, args []string) {
fmt.Printf("Inside rootCmd PreRun with args: %v\n", args)
},
Run: func(cmd *cobra.Command, args []string) {
fmt.Printf("Inside rootCmd Run with args: %v\n", args)
},
PostRun: func(cmd *cobra.Command, args []string) {
fmt.Printf("Inside rootCmd PostRun with args: %v\n", args)
},
PersistentPostRun: func(cmd *cobra.Command, args []string) {
fmt.Printf("Inside rootCmd PersistentPostRun with args: %v\n", args)
},
}
var subCmd = &cobra.Command{
Use: "sub [no options!]",
Short: "My subcommand",
PreRun: func(cmd *cobra.Command, args []string) {
fmt.Printf("Inside subCmd PreRun with args: %v\n", args)
},
Run: func(cmd *cobra.Command, args []string) {
fmt.Printf("Inside subCmd Run with args: %v\n", args)
},
PostRun: func(cmd *cobra.Command, args []string) {
fmt.Printf("Inside subCmd PostRun with args: %v\n", args)
},
PersistentPostRun: func(cmd *cobra.Command, args []string) {
fmt.Printf("Inside subCmd PersistentPostRun with args: %v\n", args)
},
}
rootCmd.AddCommand(subCmd)
rootCmd.SetArgs([]string{""})
_ = rootCmd.Execute()
fmt.Print("\n")
rootCmd.SetArgs([]string{"sub", "arg1", "arg2"})
_ = rootCmd.Execute()
}
```
## Alternative Error Handling
Cobra also has functions where the return signature is an error. This allows for errors to bubble up to the top,
providing a way to handle the errors in one location. The current list of functions that return an error is:
* PersistentPreRunE
* PreRunE
* RunE
* PostRunE
* PersistentPostRunE
If you would like to silence the default `error` and `usage` output in favor of your own, you can set `SilenceUsage`
and `SilenceErrors` to `false` on the command. A child command respects these flags if they are set on the parent
command.
**Example Usage using RunE:**
```go
package main
import (
"errors"
"log"
"github.com/spf13/cobra"
)
func main() {
var rootCmd = &cobra.Command{
Use: "hugo",
Short: "Hugo is a very fast static site generator",
Long: `A Fast and Flexible Static Site Generator built with
love by spf13 and friends in Go.
Complete documentation is available at http://hugo.spf13.com`,
RunE: func(cmd *cobra.Command, args []string) error {
// Do Stuff Here
return errors.New("some random error")
},
}
if err := rootCmd.Execute(); err != nil {
log.Fatal(err)
}
}
```
## Suggestions when "unknown command" happens
Cobra will print automatic suggestions when "unknown command" errors happen. This allows Cobra to behave similarly to the `git` command when a typo happens. For example:
```
$ hugo srever
Error: unknown command "srever" for "hugo"
Did you mean this?
server
Run 'hugo --help' for usage.
```
Suggestions are automatic based on every subcommand registered and use an implementation of [Levenshtein distance](http://en.wikipedia.org/wiki/Levenshtein_distance). Every registered command that matches a minimum distance of 2 (ignoring case) will be displayed as a suggestion.
If you need to disable suggestions or tweak the string distance in your command, use:
```go
command.DisableSuggestions = true
```
or
```go
command.SuggestionsMinimumDistance = 1
```
You can also explicitly set names for which a given command will be suggested using the `SuggestFor` attribute. This allows suggestions for strings that are not close in terms of string distance, but makes sense in your set of commands and for some which you don't want aliases. Example:
```
$ kubectl remove
Error: unknown command "remove" for "kubectl"
Did you mean this?
delete
Run 'kubectl help' for usage.
```
## Generating Markdown-formatted documentation for your command
Cobra can generate a Markdown-formatted document based on the subcommands, flags, etc. A simple example of how to do this for your command can be found in [Markdown Docs](doc/md_docs.md).
## Generating man pages for your command
Cobra can generate a man page based on the subcommands, flags, etc. A simple example of how to do this for your command can be found in [Man Docs](doc/man_docs.md).
## Generating bash completions for your command
Cobra can generate a bash-completion file. If you add more information to your command, these completions can be amazingly powerful and flexible. Read more about it in [Bash Completions](bash_completions.md).
## Debugging
Cobra provides a ‘DebugFlags’ method on a command which, when called, will print
out everything Cobra knows about the flags for each command.
### Example
```go
command.DebugFlags()
```
## Release Notes
* **0.9.0** June 17, 2014
* flags can appears anywhere in the args (provided they are unambiguous)
* --help prints usage screen for app or command
* Prefix matching for commands
* Cleaner looking help and usage output
* Extensive test suite
* **0.8.0** Nov 5, 2013
* Reworked interface to remove commander completely
* Command now primary structure
* No initialization needed
* Usage & Help templates & functions definable at any level
* Updated Readme
* **0.7.0** Sept 24, 2013
* Needs more eyes
* Test suite
* Support for automatic error messages
* Support for help command
* Support for printing to any io.Writer instead of os.Stderr
* Support for persistent flags which cascade down tree
* Ready for integration into Hugo
* **0.1.0** Sept 3, 2013
* Implement first draft
## Extensions
Libraries for extending Cobra:
* [cmdns](https://github.com/gosuri/cmdns): Enables name spacing a command's immediate children. It provides an alternative way to structure subcommands, similar to `heroku apps:create` and `ovrclk clusters:launch`.
## ToDo
* Launch proper documentation site
## Contributing
1. Fork it
2. Create your feature branch (`git checkout -b my-new-feature`)
3. Commit your changes (`git commit -am 'Add some feature'`)
4. Push to the branch (`git push origin my-new-feature`)
5. Create new Pull Request
## Contributors
Names in no particular order:
* [spf13](https://github.com/spf13),
[eparis](https://github.com/eparis),
[bep](https://github.com/bep), and many more!
## License
Cobra is released under the Apache 2.0 license. See [LICENSE.txt](https://github.com/spf13/cobra/blob/master/LICENSE.txt)
[![Bitdeli Badge](https://d2weczhvl823v0.cloudfront.net/spf13/cobra/trend.png)](https://bitdeli.com/free "Bitdeli Badge")

206
vendor/github.com/spf13/cobra/bash_completions.md generated vendored
View File

@@ -1,206 +0,0 @@
# Generating Bash Completions For Your Own cobra.Command
Generating bash completions from a cobra command is incredibly easy. An actual program which does so for the kubernetes kubectl binary is as follows:
```go
package main
import (
"io/ioutil"
"os"
"github.com/GoogleCloudPlatform/kubernetes/pkg/kubectl/cmd"
)
func main() {
kubectl := cmd.NewFactory(nil).NewKubectlCommand(os.Stdin, ioutil.Discard, ioutil.Discard)
kubectl.GenBashCompletionFile("out.sh")
}
```
That will get you completions of subcommands and flags. If you make additional annotations to your code, you can get even more intelligent and flexible behavior.
## Creating your own custom functions
Some more actual code that works in kubernetes:
```bash
const (
bash_completion_func = `__kubectl_parse_get()
{
local kubectl_output out
if kubectl_output=$(kubectl get --no-headers "$1" 2>/dev/null); then
out=($(echo "${kubectl_output}" | awk '{print $1}'))
COMPREPLY=( $( compgen -W "${out[*]}" -- "$cur" ) )
fi
}
__kubectl_get_resource()
{
if [[ ${#nouns[@]} -eq 0 ]]; then
return 1
fi
__kubectl_parse_get ${nouns[${#nouns[@]} -1]}
if [[ $? -eq 0 ]]; then
return 0
fi
}
__custom_func() {
case ${last_command} in
kubectl_get | kubectl_describe | kubectl_delete | kubectl_stop)
__kubectl_get_resource
return
;;
*)
;;
esac
}
`)
```
And then I set that in my command definition:
```go
cmds := &cobra.Command{
Use: "kubectl",
Short: "kubectl controls the Kubernetes cluster manager",
Long: `kubectl controls the Kubernetes cluster manager.
Find more information at https://github.com/GoogleCloudPlatform/kubernetes.`,
Run: runHelp,
BashCompletionFunction: bash_completion_func,
}
```
The `BashCompletionFunction` option is really only valid/useful on the root command. Doing the above will cause `__custom_func()` to be called when the built in processor was unable to find a solution. In the case of kubernetes a valid command might look something like `kubectl get pod [mypod]`. If you type `kubectl get pod [tab][tab]` the `__customc_func()` will run because the cobra.Command only understood "kubectl" and "get." `__custom_func()` will see that the cobra.Command is "kubectl_get" and will thus call another helper `__kubectl_get_resource()`. `__kubectl_get_resource` will look at the 'nouns' collected. In our example the only noun will be `pod`. So it will call `__kubectl_parse_get pod`. `__kubectl_parse_get` will actually call out to kubernetes and get any pods. It will then set `COMPREPLY` to valid pods!
## Have the completions code complete your 'nouns'
In the above example "pod" was assumed to already be typed. But if you want `kubectl get [tab][tab]` to show a list of valid "nouns" you have to set them. Simplified code from `kubectl get` looks like:
```go
validArgs []string = { "pod", "node", "service", "replicationcontroller" }
cmd := &cobra.Command{
Use: "get [(-o|--output=)json|yaml|template|...] (RESOURCE [NAME] | RESOURCE/NAME ...)",
Short: "Display one or many resources",
Long: get_long,
Example: get_example,
Run: func(cmd *cobra.Command, args []string) {
err := RunGet(f, out, cmd, args)
util.CheckErr(err)
},
ValidArgs: validArgs,
}
```
Notice we put the "ValidArgs" on the "get" subcommand. Doing so will give results like
```bash
# kubectl get [tab][tab]
node pod replicationcontroller service
```
## Plural form and shortcuts for nouns
If your nouns have a number of aliases, you can define them alongside `ValidArgs` using `ArgAliases`:
```go`
argAliases []string = { "pods", "nodes", "services", "svc", "replicationcontrollers", "rc" }
cmd := &cobra.Command{
...
ValidArgs: validArgs,
ArgAliases: argAliases
}
```
The aliases are not shown to the user on tab completion, but they are accepted as valid nouns by
the completion algorithm if entered manually, e.g. in:
```bash
# kubectl get rc [tab][tab]
backend frontend database
```
Note that without declaring `rc` as an alias, the completion algorithm would show the list of nouns
in this example again instead of the replication controllers.
## Mark flags as required
Most of the time completions will only show subcommands. But if a flag is required to make a subcommand work, you probably want it to show up when the user types [tab][tab]. Marking a flag as 'Required' is incredibly easy.
```go
cmd.MarkFlagRequired("pod")
cmd.MarkFlagRequired("container")
```
and you'll get something like
```bash
# kubectl exec [tab][tab][tab]
-c --container= -p --pod=
```
# Specify valid filename extensions for flags that take a filename
In this example we use --filename= and expect to get a json or yaml file as the argument. To make this easier we annotate the --filename flag with valid filename extensions.
```go
annotations := []string{"json", "yaml", "yml"}
annotation := make(map[string][]string)
annotation[cobra.BashCompFilenameExt] = annotations
flag := &pflag.Flag{
Name: "filename",
Shorthand: "f",
Usage: usage,
Value: value,
DefValue: value.String(),
Annotations: annotation,
}
cmd.Flags().AddFlag(flag)
```
Now when you run a command with this filename flag you'll get something like
```bash
# kubectl create -f
test/ example/ rpmbuild/
hello.yml test.json
```
So while there are many other files in the CWD it only shows me subdirs and those with valid extensions.
# Specifiy custom flag completion
Similar to the filename completion and filtering using cobra.BashCompFilenameExt, you can specifiy
a custom flag completion function with cobra.BashCompCustom:
```go
annotation := make(map[string][]string)
annotation[cobra.BashCompFilenameExt] = []string{"__kubectl_get_namespaces"}
flag := &pflag.Flag{
Name: "namespace",
Usage: usage,
Annotations: annotation,
}
cmd.Flags().AddFlag(flag)
```
In addition add the `__handle_namespace_flag` implementation in the `BashCompletionFunction`
value, e.g.:
```bash
__kubectl_get_namespaces()
{
local template
template="{{ range .items }}{{ .metadata.name }} {{ end }}"
local kubectl_out
if kubectl_out=$(kubectl get -o template --template="${template}" namespace 2>/dev/null); then
COMPREPLY=( $( compgen -W "${kubectl_out}[*]" -- "$cur" ) )
fi
}
```

140
vendor/github.com/spf13/cobra/bash_completions_test.go generated vendored
View File

@@ -1,140 +0,0 @@
package cobra
import (
"bytes"
"fmt"
"os"
"os/exec"
"strings"
"testing"
)
var _ = fmt.Println
var _ = os.Stderr
func checkOmit(t *testing.T, found, unexpected string) {
if strings.Contains(found, unexpected) {
t.Errorf("Unexpected response.\nGot: %q\nBut should not have!\n", unexpected)
}
}
func check(t *testing.T, found, expected string) {
if !strings.Contains(found, expected) {
t.Errorf("Unexpected response.\nExpecting to contain: \n %q\nGot:\n %q\n", expected, found)
}
}
func runShellCheck(s string) error {
excluded := []string{
"SC2034", // PREFIX appears unused. Verify it or export it.
}
cmd := exec.Command("shellcheck", "-s", "bash", "-", "-e", strings.Join(excluded, ","))
cmd.Stderr = os.Stderr
cmd.Stdout = os.Stdout
stdin, err := cmd.StdinPipe()
if err != nil {
return err
}
go func() {
defer stdin.Close()
stdin.Write([]byte(s))
}()
return cmd.Run()
}
// World worst custom function, just keep telling you to enter hello!
const (
bashCompletionFunc = `__custom_func() {
COMPREPLY=( "hello" )
}
`
)
func TestBashCompletions(t *testing.T) {
c := initializeWithRootCmd()
cmdEcho.AddCommand(cmdTimes)
c.AddCommand(cmdEcho, cmdPrint, cmdDeprecated, cmdColon)
// custom completion function
c.BashCompletionFunction = bashCompletionFunc
// required flag
c.MarkFlagRequired("introot")
// valid nouns
validArgs := []string{"pod", "node", "service", "replicationcontroller"}
c.ValidArgs = validArgs
// noun aliases
argAliases := []string{"pods", "nodes", "services", "replicationcontrollers", "po", "no", "svc", "rc"}
c.ArgAliases = argAliases
// filename
var flagval string
c.Flags().StringVar(&flagval, "filename", "", "Enter a filename")
c.MarkFlagFilename("filename", "json", "yaml", "yml")
// persistent filename
var flagvalPersistent string
c.PersistentFlags().StringVar(&flagvalPersistent, "persistent-filename", "", "Enter a filename")
c.MarkPersistentFlagFilename("persistent-filename")
c.MarkPersistentFlagRequired("persistent-filename")
// filename extensions
var flagvalExt string
c.Flags().StringVar(&flagvalExt, "filename-ext", "", "Enter a filename (extension limited)")
c.MarkFlagFilename("filename-ext")
// filename extensions
var flagvalCustom string
c.Flags().StringVar(&flagvalCustom, "custom", "", "Enter a filename (extension limited)")
c.MarkFlagCustom("custom", "__complete_custom")
// subdirectories in a given directory
var flagvalTheme string
c.Flags().StringVar(&flagvalTheme, "theme", "", "theme to use (located in /themes/THEMENAME/)")
c.Flags().SetAnnotation("theme", BashCompSubdirsInDir, []string{"themes"})
out := new(bytes.Buffer)
c.GenBashCompletion(out)
str := out.String()
check(t, str, "_cobra-test")
check(t, str, "_cobra-test_echo")
check(t, str, "_cobra-test_echo_times")
check(t, str, "_cobra-test_print")
check(t, str, "_cobra-test_cmd__colon")
// check for required flags
check(t, str, `must_have_one_flag+=("--introot=")`)
check(t, str, `must_have_one_flag+=("--persistent-filename=")`)
// check for custom completion function
check(t, str, `COMPREPLY=( "hello" )`)
// check for required nouns
check(t, str, `must_have_one_noun+=("pod")`)
// check for noun aliases
check(t, str, `noun_aliases+=("pods")`)
check(t, str, `noun_aliases+=("rc")`)
checkOmit(t, str, `must_have_one_noun+=("pods")`)
// check for filename extension flags
check(t, str, `flags_completion+=("_filedir")`)
// check for filename extension flags
check(t, str, `flags_completion+=("__handle_filename_extension_flag json|yaml|yml")`)
// check for custom flags
check(t, str, `flags_completion+=("__complete_custom")`)
// check for subdirs_in_dir flags
check(t, str, `flags_completion+=("__handle_subdirs_in_dir_flag themes")`)
checkOmit(t, str, cmdDeprecated.Name())
// if available, run shellcheck against the script
if err := exec.Command("which", "shellcheck").Run(); err != nil {
return
}
err := runShellCheck(str)
if err != nil {
t.Fatalf("shellcheck failed: %v", err)
}
}

1188
vendor/github.com/spf13/cobra/cobra_test.go generated vendored
View File

File diff suppressed because it is too large Load Diff

176
vendor/github.com/spf13/cobra/command_test.go generated vendored
View File

@@ -1,176 +0,0 @@
package cobra
import (
"os"
"reflect"
"testing"
)
// test to ensure hidden commands run as intended
func TestHiddenCommandExecutes(t *testing.T) {
// ensure that outs does not already equal what the command will be setting it
// to, if it did this test would not actually be testing anything...
if outs == "hidden" {
t.Errorf("outs should NOT EQUAL hidden")
}
cmdHidden.Execute()
// upon running the command, the value of outs should now be 'hidden'
if outs != "hidden" {
t.Errorf("Hidden command failed to run!")
}
}
// test to ensure hidden commands do not show up in usage/help text
func TestHiddenCommandIsHidden(t *testing.T) {
if cmdHidden.IsAvailableCommand() {
t.Errorf("Hidden command found!")
}
}
func TestStripFlags(t *testing.T) {
tests := []struct {
input []string
output []string
}{
{
[]string{"foo", "bar"},
[]string{"foo", "bar"},
},
{
[]string{"foo", "--bar", "-b"},
[]string{"foo"},
},
{
[]string{"-b", "foo", "--bar", "bar"},
[]string{},
},
{
[]string{"-i10", "echo"},
[]string{"echo"},
},
{
[]string{"-i=10", "echo"},
[]string{"echo"},
},
{
[]string{"--int=100", "echo"},
[]string{"echo"},
},
{
[]string{"-ib", "echo", "-bfoo", "baz"},
[]string{"echo", "baz"},
},
{
[]string{"-i=baz", "bar", "-i", "foo", "blah"},
[]string{"bar", "blah"},
},
{
[]string{"--int=baz", "-bbar", "-i", "foo", "blah"},
[]string{"blah"},
},
{
[]string{"--cat", "bar", "-i", "foo", "blah"},
[]string{"bar", "blah"},
},
{
[]string{"-c", "bar", "-i", "foo", "blah"},
[]string{"bar", "blah"},
},
{
[]string{"--persist", "bar"},
[]string{"bar"},
},
{
[]string{"-p", "bar"},
[]string{"bar"},
},
}
cmdPrint := &Command{
Use: "print [string to print]",
Short: "Print anything to the screen",
Long: `an utterly useless command for testing.`,
Run: func(cmd *Command, args []string) {
tp = args
},
}
var flagi int
var flagstr string
var flagbool bool
cmdPrint.PersistentFlags().BoolVarP(&flagbool, "persist", "p", false, "help for persistent one")
cmdPrint.Flags().IntVarP(&flagi, "int", "i", 345, "help message for flag int")
cmdPrint.Flags().StringVarP(&flagstr, "bar", "b", "bar", "help message for flag string")
cmdPrint.Flags().BoolVarP(&flagbool, "cat", "c", false, "help message for flag bool")
for _, test := range tests {
output := stripFlags(test.input, cmdPrint)
if !reflect.DeepEqual(test.output, output) {
t.Errorf("expected: %v, got: %v", test.output, output)
}
}
}
func Test_DisableFlagParsing(t *testing.T) {
as := []string{"-v", "-race", "-file", "foo.go"}
targs := []string{}
cmdPrint := &Command{
DisableFlagParsing: true,
Run: func(cmd *Command, args []string) {
targs = args
},
}
osargs := []string{"cmd"}
os.Args = append(osargs, as...)
err := cmdPrint.Execute()
if err != nil {
t.Error(err)
}
if !reflect.DeepEqual(as, targs) {
t.Errorf("expected: %v, got: %v", as, targs)
}
}
func TestCommandsAreSorted(t *testing.T) {
EnableCommandSorting = true
originalNames := []string{"middle", "zlast", "afirst"}
expectedNames := []string{"afirst", "middle", "zlast"}
var tmpCommand = &Command{Use: "tmp"}
for _, name := range(originalNames) {
tmpCommand.AddCommand(&Command{Use: name})
}
for i, c := range(tmpCommand.Commands()) {
if expectedNames[i] != c.Name() {
t.Errorf("expected: %s, got: %s", expectedNames[i], c.Name())
}
}
EnableCommandSorting = true
}
func TestEnableCommandSortingIsDisabled(t *testing.T) {
EnableCommandSorting = false
originalNames := []string{"middle", "zlast", "afirst"}
var tmpCommand = &Command{Use: "tmp"}
for _, name := range(originalNames) {
tmpCommand.AddCommand(&Command{Use: name})
}
for i, c := range(tmpCommand.Commands()) {
if originalNames[i] != c.Name() {
t.Errorf("expected: %s, got: %s", originalNames[i], c.Name())
}
}
EnableCommandSorting = true
}

17
vendor/github.com/spf13/pflag/.travis.yml generated vendored
View File

@@ -1,17 +0,0 @@
sudo: false
language: go
go:
- 1.5
- 1.6
- tip
install:
- go get github.com/golang/lint/golint
- export PATH=$GOPATH/bin:$PATH
- go install ./...
script:
- verify/all.sh -v
- go test ./...

275
vendor/github.com/spf13/pflag/README.md generated vendored
View File

@@ -1,275 +0,0 @@
[![Build Status](https://travis-ci.org/spf13/pflag.svg?branch=master)](https://travis-ci.org/spf13/pflag)
## Description
pflag is a drop-in replacement for Go's flag package, implementing
POSIX/GNU-style --flags.
pflag is compatible with the [GNU extensions to the POSIX recommendations
for command-line options][1]. For a more precise description, see the
"Command-line flag syntax" section below.
[1]: http://www.gnu.org/software/libc/manual/html_node/Argument-Syntax.html
pflag is available under the same style of BSD license as the Go language,
which can be found in the LICENSE file.
## Installation
pflag is available using the standard `go get` command.
Install by running:
go get github.com/spf13/pflag
Run tests by running:
go test github.com/spf13/pflag
## Usage
pflag is a drop-in replacement of Go's native flag package. If you import
pflag under the name "flag" then all code should continue to function
with no changes.
``` go
import flag "github.com/spf13/pflag"
```
There is one exception to this: if you directly instantiate the Flag struct
there is one more field "Shorthand" that you will need to set.
Most code never instantiates this struct directly, and instead uses
functions such as String(), BoolVar(), and Var(), and is therefore
unaffected.
Define flags using flag.String(), Bool(), Int(), etc.
This declares an integer flag, -flagname, stored in the pointer ip, with type *int.
``` go
var ip *int = flag.Int("flagname", 1234, "help message for flagname")
```
If you like, you can bind the flag to a variable using the Var() functions.
``` go
var flagvar int
func init() {
flag.IntVar(&flagvar, "flagname", 1234, "help message for flagname")
}
```
Or you can create custom flags that satisfy the Value interface (with
pointer receivers) and couple them to flag parsing by
``` go
flag.Var(&flagVal, "name", "help message for flagname")
```
For such flags, the default value is just the initial value of the variable.
After all flags are defined, call
``` go
flag.Parse()
```
to parse the command line into the defined flags.
Flags may then be used directly. If you're using the flags themselves,
they are all pointers; if you bind to variables, they're values.
``` go
fmt.Println("ip has value ", *ip)
fmt.Println("flagvar has value ", flagvar)
```
There are helpers function to get values later if you have the FlagSet but
it was difficult to keep up with all of the flag pointers in your code.
If you have a pflag.FlagSet with a flag called 'flagname' of type int you
can use GetInt() to get the int value. But notice that 'flagname' must exist
and it must be an int. GetString("flagname") will fail.
``` go
i, err := flagset.GetInt("flagname")
```
After parsing, the arguments after the flag are available as the
slice flag.Args() or individually as flag.Arg(i).
The arguments are indexed from 0 through flag.NArg()-1.
The pflag package also defines some new functions that are not in flag,
that give one-letter shorthands for flags. You can use these by appending
'P' to the name of any function that defines a flag.
``` go
var ip = flag.IntP("flagname", "f", 1234, "help message")
var flagvar bool
func init() {
flag.BoolVarP("boolname", "b", true, "help message")
}
flag.VarP(&flagVar, "varname", "v", 1234, "help message")
```
Shorthand letters can be used with single dashes on the command line.
Boolean shorthand flags can be combined with other shorthand flags.
The default set of command-line flags is controlled by
top-level functions. The FlagSet type allows one to define
independent sets of flags, such as to implement subcommands
in a command-line interface. The methods of FlagSet are
analogous to the top-level functions for the command-line
flag set.
## Setting no option default values for flags
After you create a flag it is possible to set the pflag.NoOptDefVal for
the given flag. Doing this changes the meaning of the flag slightly. If
a flag has a NoOptDefVal and the flag is set on the command line without
an option the flag will be set to the NoOptDefVal. For example given:
``` go
var ip = flag.IntP("flagname", "f", 1234, "help message")
flag.Lookup("flagname").NoOptDefVal = "4321"
```
Would result in something like
| Parsed Arguments | Resulting Value |
| ------------- | ------------- |
| --flagname=1357 | ip=1357 |
| --flagname | ip=4321 |
| [nothing] | ip=1234 |
## Command line flag syntax
```
--flag // boolean flags, or flags with no option default values
--flag x // only on flags without a default value
--flag=x
```
Unlike the flag package, a single dash before an option means something
different than a double dash. Single dashes signify a series of shorthand
letters for flags. All but the last shorthand letter must be boolean flags
or a flag with a default value
```
// boolean or flags where the 'no option default value' is set
-f
-f=true
-abc
but
-b true is INVALID
// non-boolean and flags without a 'no option default value'
-n 1234
-n=1234
-n1234
// mixed
-abcs "hello"
-absd="hello"
-abcs1234
```
Flag parsing stops after the terminator "--". Unlike the flag package,
flags can be interspersed with arguments anywhere on the command line
before this terminator.
Integer flags accept 1234, 0664, 0x1234 and may be negative.
Boolean flags (in their long form) accept 1, 0, t, f, true, false,
TRUE, FALSE, True, False.
Duration flags accept any input valid for time.ParseDuration.
## Mutating or "Normalizing" Flag names
It is possible to set a custom flag name 'normalization function.' It allows flag names to be mutated both when created in the code and when used on the command line to some 'normalized' form. The 'normalized' form is used for comparison. Two examples of using the custom normalization func follow.
**Example #1**: You want -, _, and . in flags to compare the same. aka --my-flag == --my_flag == --my.flag
``` go
func wordSepNormalizeFunc(f *pflag.FlagSet, name string) pflag.NormalizedName {
from := []string{"-", "_"}
to := "."
for _, sep := range from {
name = strings.Replace(name, sep, to, -1)
}
return pflag.NormalizedName(name)
}
myFlagSet.SetNormalizeFunc(wordSepNormalizeFunc)
```
**Example #2**: You want to alias two flags. aka --old-flag-name == --new-flag-name
``` go
func aliasNormalizeFunc(f *pflag.FlagSet, name string) pflag.NormalizedName {
switch name {
case "old-flag-name":
name = "new-flag-name"
break
}
return pflag.NormalizedName(name)
}
myFlagSet.SetNormalizeFunc(aliasNormalizeFunc)
```
## Deprecating a flag or its shorthand
It is possible to deprecate a flag, or just its shorthand. Deprecating a flag/shorthand hides it from help text and prints a usage message when the deprecated flag/shorthand is used.
**Example #1**: You want to deprecate a flag named "badflag" as well as inform the users what flag they should use instead.
```go
// deprecate a flag by specifying its name and a usage message
flags.MarkDeprecated("badflag", "please use --good-flag instead")
```
This hides "badflag" from help text, and prints `Flag --badflag has been deprecated, please use --good-flag instead` when "badflag" is used.
**Example #2**: You want to keep a flag name "noshorthandflag" but deprecate its shortname "n".
```go
// deprecate a flag shorthand by specifying its flag name and a usage message
flags.MarkShorthandDeprecated("noshorthandflag", "please use --noshorthandflag only")
```
This hides the shortname "n" from help text, and prints `Flag shorthand -n has been deprecated, please use --noshorthandflag only` when the shorthand "n" is used.
Note that usage message is essential here, and it should not be empty.
## Hidden flags
It is possible to mark a flag as hidden, meaning it will still function as normal, however will not show up in usage/help text.
**Example**: You have a flag named "secretFlag" that you need for internal use only and don't want it showing up in help text, or for its usage text to be available.
```go
// hide a flag by specifying its name
flags.MarkHidden("secretFlag")
```
## Supporting Go flags when using pflag
In order to support flags defined using Go's `flag` package, they must be added to the `pflag` flagset. This is usually necessary
to support flags defined by third-party dependencies (e.g. `golang/glog`).
**Example**: You want to add the Go flags to the `CommandLine` flagset
```go
import (
goflag "flag"
flag "github.com/spf13/pflag"
)
var ip *int = flag.Int("flagname", 1234, "help message for flagname")
func main() {
flag.CommandLine.AddGoFlagSet(goflag.CommandLine)
flag.Parse()
}
```
## More info
You can see the full reference documentation of the pflag package
[at godoc.org][3], or through go's standard documentation system by
running `godoc -http=:6060` and browsing to
[http://localhost:6060/pkg/github.com/ogier/pflag][2] after
installation.
[2]: http://localhost:6060/pkg/github.com/ogier/pflag
[3]: http://godoc.org/github.com/ogier/pflag

180
vendor/github.com/spf13/pflag/bool_test.go generated vendored
View File

@@ -1,180 +0,0 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package pflag
import (
"bytes"
"fmt"
"strconv"
"testing"
)
// This value can be a boolean ("true", "false") or "maybe"
type triStateValue int
const (
triStateFalse triStateValue = 0
triStateTrue triStateValue = 1
triStateMaybe triStateValue = 2
)
const strTriStateMaybe = "maybe"
func (v *triStateValue) IsBoolFlag() bool {
return true
}
func (v *triStateValue) Get() interface{} {
return triStateValue(*v)
}
func (v *triStateValue) Set(s string) error {
if s == strTriStateMaybe {
*v = triStateMaybe
return nil
}
boolVal, err := strconv.ParseBool(s)
if boolVal {
*v = triStateTrue
} else {
*v = triStateFalse
}
return err
}
func (v *triStateValue) String() string {
if *v == triStateMaybe {
return strTriStateMaybe
}
return fmt.Sprintf("%v", bool(*v == triStateTrue))
}
// The type of the flag as required by the pflag.Value interface
func (v *triStateValue) Type() string {
return "version"
}
func setUpFlagSet(tristate *triStateValue) *FlagSet {
f := NewFlagSet("test", ContinueOnError)
*tristate = triStateFalse
flag := f.VarPF(tristate, "tristate", "t", "tristate value (true, maybe or false)")
flag.NoOptDefVal = "true"
return f
}
func TestExplicitTrue(t *testing.T) {
var tristate triStateValue
f := setUpFlagSet(&tristate)
err := f.Parse([]string{"--tristate=true"})
if err != nil {
t.Fatal("expected no error; got", err)
}
if tristate != triStateTrue {
t.Fatal("expected", triStateTrue, "(triStateTrue) but got", tristate, "instead")
}
}
func TestImplicitTrue(t *testing.T) {
var tristate triStateValue
f := setUpFlagSet(&tristate)
err := f.Parse([]string{"--tristate"})
if err != nil {
t.Fatal("expected no error; got", err)
}
if tristate != triStateTrue {
t.Fatal("expected", triStateTrue, "(triStateTrue) but got", tristate, "instead")
}
}
func TestShortFlag(t *testing.T) {
var tristate triStateValue
f := setUpFlagSet(&tristate)
err := f.Parse([]string{"-t"})
if err != nil {
t.Fatal("expected no error; got", err)
}
if tristate != triStateTrue {
t.Fatal("expected", triStateTrue, "(triStateTrue) but got", tristate, "instead")
}
}
func TestShortFlagExtraArgument(t *testing.T) {
var tristate triStateValue
f := setUpFlagSet(&tristate)
// The"maybe"turns into an arg, since short boolean options will only do true/false
err := f.Parse([]string{"-t", "maybe"})
if err != nil {
t.Fatal("expected no error; got", err)
}
if tristate != triStateTrue {
t.Fatal("expected", triStateTrue, "(triStateTrue) but got", tristate, "instead")
}
args := f.Args()
if len(args) != 1 || args[0] != "maybe" {
t.Fatal("expected an extra 'maybe' argument to stick around")
}
}
func TestExplicitMaybe(t *testing.T) {
var tristate triStateValue
f := setUpFlagSet(&tristate)
err := f.Parse([]string{"--tristate=maybe"})
if err != nil {
t.Fatal("expected no error; got", err)
}
if tristate != triStateMaybe {
t.Fatal("expected", triStateMaybe, "(triStateMaybe) but got", tristate, "instead")
}
}
func TestExplicitFalse(t *testing.T) {
var tristate triStateValue
f := setUpFlagSet(&tristate)
err := f.Parse([]string{"--tristate=false"})
if err != nil {
t.Fatal("expected no error; got", err)
}
if tristate != triStateFalse {
t.Fatal("expected", triStateFalse, "(triStateFalse) but got", tristate, "instead")
}
}
func TestImplicitFalse(t *testing.T) {
var tristate triStateValue
f := setUpFlagSet(&tristate)
err := f.Parse([]string{})
if err != nil {
t.Fatal("expected no error; got", err)
}
if tristate != triStateFalse {
t.Fatal("expected", triStateFalse, "(triStateFalse) but got", tristate, "instead")
}
}
func TestInvalidValue(t *testing.T) {
var tristate triStateValue
f := setUpFlagSet(&tristate)
var buf bytes.Buffer
f.SetOutput(&buf)
err := f.Parse([]string{"--tristate=invalid"})
if err == nil {
t.Fatal("expected an error but did not get any, tristate has value", tristate)
}
}
func TestBoolP(t *testing.T) {
b := BoolP("bool", "b", false, "bool value in CommandLine")
c := BoolP("c", "c", false, "other bool value")
args := []string{"--bool"}
if err := CommandLine.Parse(args); err != nil {
t.Error("expected no error, got ", err)
}
if *b != true {
t.Errorf("expected b=true got b=%s", b)
}
if *c != false {
t.Errorf("expect c=false got c=%s", c)
}
}

55
vendor/github.com/spf13/pflag/count_test.go generated vendored
View File

@@ -1,55 +0,0 @@
package pflag
import (
"fmt"
"os"
"testing"
)
var _ = fmt.Printf
func setUpCount(c *int) *FlagSet {
f := NewFlagSet("test", ContinueOnError)
f.CountVarP(c, "verbose", "v", "a counter")
return f
}
func TestCount(t *testing.T) {
testCases := []struct {
input []string
success bool
expected int
}{
{[]string{"-vvv"}, true, 3},
{[]string{"-v", "-v", "-v"}, true, 3},
{[]string{"-v", "--verbose", "-v"}, true, 3},
{[]string{"-v=3", "-v"}, true, 4},
{[]string{"-v=a"}, false, 0},
}
devnull, _ := os.Open(os.DevNull)
os.Stderr = devnull
for i := range testCases {
var count int
f := setUpCount(&count)
tc := &testCases[i]
err := f.Parse(tc.input)
if err != nil && tc.success == true {
t.Errorf("expected success, got %q", err)
continue
} else if err == nil && tc.success == false {
t.Errorf("expected failure, got success")
continue
} else if tc.success {
c, err := f.GetCount("verbose")
if err != nil {
t.Errorf("Got error trying to fetch the counter flag")
}
if c != tc.expected {
t.Errorf("expected %q, got %q", tc.expected, c)
}
}
}
}

77
vendor/github.com/spf13/pflag/example_test.go generated vendored
View File

@@ -1,77 +0,0 @@
// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// These examples demonstrate more intricate uses of the flag package.
package pflag_test
import (
"errors"
"fmt"
"strings"
"time"
flag "github.com/spf13/pflag"
)
// Example 1: A single string flag called "species" with default value "gopher".
var species = flag.String("species", "gopher", "the species we are studying")
// Example 2: A flag with a shorthand letter.
var gopherType = flag.StringP("gopher_type", "g", "pocket", "the variety of gopher")
// Example 3: A user-defined flag type, a slice of durations.
type interval []time.Duration
// String is the method to format the flag's value, part of the flag.Value interface.
// The String method's output will be used in diagnostics.
func (i *interval) String() string {
return fmt.Sprint(*i)
}
func (i *interval) Type() string {
return "interval"
}
// Set is the method to set the flag value, part of the flag.Value interface.
// Set's argument is a string to be parsed to set the flag.
// It's a comma-separated list, so we split it.
func (i *interval) Set(value string) error {
// If we wanted to allow the flag to be set multiple times,
// accumulating values, we would delete this if statement.
// That would permit usages such as
// -deltaT 10s -deltaT 15s
// and other combinations.
if len(*i) > 0 {
return errors.New("interval flag already set")
}
for _, dt := range strings.Split(value, ",") {
duration, err := time.ParseDuration(dt)
if err != nil {
return err
}
*i = append(*i, duration)
}
return nil
}
// Define a flag to accumulate durations. Because it has a special type,
// we need to use the Var function and therefore create the flag during
// init.
var intervalFlag interval
func init() {
// Tie the command-line flag to the intervalFlag variable and
// set a usage message.
flag.Var(&intervalFlag, "deltaT", "comma-separated list of intervals to use between events")
}
func Example() {
// All the interesting pieces are with the variables declared above, but
// to enable the flag package to see the flags defined there, one must
// execute, typically at the start of main (not init!):
// flag.Parse()
// We don't run it here because this is not a main function and
// the testing suite has already parsed the flags.
}

29
vendor/github.com/spf13/pflag/export_test.go generated vendored
View File

@@ -1,29 +0,0 @@
// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package pflag
import (
"io/ioutil"
"os"
)
// Additional routines compiled into the package only during testing.
// ResetForTesting clears all flag state and sets the usage function as directed.
// After calling ResetForTesting, parse errors in flag handling will not
// exit the program.
func ResetForTesting(usage func()) {
CommandLine = &FlagSet{
name: os.Args[0],
errorHandling: ContinueOnError,
output: ioutil.Discard,
}
Usage = usage
}
// GetCommandLine returns the default FlagSet.
func GetCommandLine() *FlagSet {
return CommandLine
}

913
vendor/github.com/spf13/pflag/flag_test.go generated vendored
View File

@@ -1,913 +0,0 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package pflag
import (
"bytes"
"fmt"
"io"
"io/ioutil"
"net"
"os"
"reflect"
"sort"
"strings"
"testing"
"time"
)
var (
testBool = Bool("test_bool", false, "bool value")
testInt = Int("test_int", 0, "int value")
testInt64 = Int64("test_int64", 0, "int64 value")
testUint = Uint("test_uint", 0, "uint value")
testUint64 = Uint64("test_uint64", 0, "uint64 value")
testString = String("test_string", "0", "string value")
testFloat = Float64("test_float64", 0, "float64 value")
testDuration = Duration("test_duration", 0, "time.Duration value")
testOptionalInt = Int("test_optional_int", 0, "optional int value")
normalizeFlagNameInvocations = 0
)
func boolString(s string) string {
if s == "0" {
return "false"
}
return "true"
}
func TestEverything(t *testing.T) {
m := make(map[string]*Flag)
desired := "0"
visitor := func(f *Flag) {
if len(f.Name) > 5 && f.Name[0:5] == "test_" {
m[f.Name] = f
ok := false
switch {
case f.Value.String() == desired:
ok = true
case f.Name == "test_bool" && f.Value.String() == boolString(desired):
ok = true
case f.Name == "test_duration" && f.Value.String() == desired+"s":
ok = true
}
if !ok {
t.Error("Visit: bad value", f.Value.String(), "for", f.Name)
}
}
}
VisitAll(visitor)
if len(m) != 9 {
t.Error("VisitAll misses some flags")
for k, v := range m {
t.Log(k, *v)
}
}
m = make(map[string]*Flag)
Visit(visitor)
if len(m) != 0 {
t.Errorf("Visit sees unset flags")
for k, v := range m {
t.Log(k, *v)
}
}
// Now set all flags
Set("test_bool", "true")
Set("test_int", "1")
Set("test_int64", "1")
Set("test_uint", "1")
Set("test_uint64", "1")
Set("test_string", "1")
Set("test_float64", "1")
Set("test_duration", "1s")
Set("test_optional_int", "1")
desired = "1"
Visit(visitor)
if len(m) != 9 {
t.Error("Visit fails after set")
for k, v := range m {
t.Log(k, *v)
}
}
// Now test they're visited in sort order.
var flagNames []string
Visit(func(f *Flag) { flagNames = append(flagNames, f.Name) })
if !sort.StringsAreSorted(flagNames) {
t.Errorf("flag names not sorted: %v", flagNames)
}
}
func TestUsage(t *testing.T) {
called := false
ResetForTesting(func() { called = true })
if GetCommandLine().Parse([]string{"--x"}) == nil {
t.Error("parse did not fail for unknown flag")
}
if !called {
t.Error("did not call Usage for unknown flag")
}
}
func TestAddFlagSet(t *testing.T) {
oldSet := NewFlagSet("old", ContinueOnError)
newSet := NewFlagSet("new", ContinueOnError)
oldSet.String("flag1", "flag1", "flag1")
oldSet.String("flag2", "flag2", "flag2")
newSet.String("flag2", "flag2", "flag2")
newSet.String("flag3", "flag3", "flag3")
oldSet.AddFlagSet(newSet)
if len(oldSet.formal) != 3 {
t.Errorf("Unexpected result adding a FlagSet to a FlagSet %v", oldSet)
}
}
func TestAnnotation(t *testing.T) {
f := NewFlagSet("shorthand", ContinueOnError)
if err := f.SetAnnotation("missing-flag", "key", nil); err == nil {
t.Errorf("Expected error setting annotation on non-existent flag")
}
f.StringP("stringa", "a", "", "string value")
if err := f.SetAnnotation("stringa", "key", nil); err != nil {
t.Errorf("Unexpected error setting new nil annotation: %v", err)
}
if annotation := f.Lookup("stringa").Annotations["key"]; annotation != nil {
t.Errorf("Unexpected annotation: %v", annotation)
}
f.StringP("stringb", "b", "", "string2 value")
if err := f.SetAnnotation("stringb", "key", []string{"value1"}); err != nil {
t.Errorf("Unexpected error setting new annotation: %v", err)
}
if annotation := f.Lookup("stringb").Annotations["key"]; !reflect.DeepEqual(annotation, []string{"value1"}) {
t.Errorf("Unexpected annotation: %v", annotation)
}
if err := f.SetAnnotation("stringb", "key", []string{"value2"}); err != nil {
t.Errorf("Unexpected error updating annotation: %v", err)
}
if annotation := f.Lookup("stringb").Annotations["key"]; !reflect.DeepEqual(annotation, []string{"value2"}) {
t.Errorf("Unexpected annotation: %v", annotation)
}
}
func testParse(f *FlagSet, t *testing.T) {
if f.Parsed() {
t.Error("f.Parse() = true before Parse")
}
boolFlag := f.Bool("bool", false, "bool value")
bool2Flag := f.Bool("bool2", false, "bool2 value")
bool3Flag := f.Bool("bool3", false, "bool3 value")
intFlag := f.Int("int", 0, "int value")
int8Flag := f.Int8("int8", 0, "int value")
int32Flag := f.Int32("int32", 0, "int value")
int64Flag := f.Int64("int64", 0, "int64 value")
uintFlag := f.Uint("uint", 0, "uint value")
uint8Flag := f.Uint8("uint8", 0, "uint value")
uint16Flag := f.Uint16("uint16", 0, "uint value")
uint32Flag := f.Uint32("uint32", 0, "uint value")
uint64Flag := f.Uint64("uint64", 0, "uint64 value")
stringFlag := f.String("string", "0", "string value")
float32Flag := f.Float32("float32", 0, "float32 value")
float64Flag := f.Float64("float64", 0, "float64 value")
ipFlag := f.IP("ip", net.ParseIP("127.0.0.1"), "ip value")
maskFlag := f.IPMask("mask", ParseIPv4Mask("0.0.0.0"), "mask value")
durationFlag := f.Duration("duration", 5*time.Second, "time.Duration value")
optionalIntNoValueFlag := f.Int("optional-int-no-value", 0, "int value")
f.Lookup("optional-int-no-value").NoOptDefVal = "9"
optionalIntWithValueFlag := f.Int("optional-int-with-value", 0, "int value")
f.Lookup("optional-int-no-value").NoOptDefVal = "9"
extra := "one-extra-argument"
args := []string{
"--bool",
"--bool2=true",
"--bool3=false",
"--int=22",
"--int8=-8",
"--int32=-32",
"--int64=0x23",
"--uint", "24",
"--uint8=8",
"--uint16=16",
"--uint32=32",
"--uint64=25",
"--string=hello",
"--float32=-172e12",
"--float64=2718e28",
"--ip=10.11.12.13",
"--mask=255.255.255.0",
"--duration=2m",
"--optional-int-no-value",
"--optional-int-with-value=42",
extra,
}
if err := f.Parse(args); err != nil {
t.Fatal(err)
}
if !f.Parsed() {
t.Error("f.Parse() = false after Parse")
}
if *boolFlag != true {
t.Error("bool flag should be true, is ", *boolFlag)
}
if v, err := f.GetBool("bool"); err != nil || v != *boolFlag {
t.Error("GetBool does not work.")
}
if *bool2Flag != true {
t.Error("bool2 flag should be true, is ", *bool2Flag)
}
if *bool3Flag != false {
t.Error("bool3 flag should be false, is ", *bool2Flag)
}
if *intFlag != 22 {
t.Error("int flag should be 22, is ", *intFlag)
}
if v, err := f.GetInt("int"); err != nil || v != *intFlag {
t.Error("GetInt does not work.")
}
if *int8Flag != -8 {
t.Error("int8 flag should be 0x23, is ", *int8Flag)
}
if v, err := f.GetInt8("int8"); err != nil || v != *int8Flag {
t.Error("GetInt8 does not work.")
}
if *int32Flag != -32 {
t.Error("int32 flag should be 0x23, is ", *int32Flag)
}
if v, err := f.GetInt32("int32"); err != nil || v != *int32Flag {
t.Error("GetInt32 does not work.")
}
if *int64Flag != 0x23 {
t.Error("int64 flag should be 0x23, is ", *int64Flag)
}
if v, err := f.GetInt64("int64"); err != nil || v != *int64Flag {
t.Error("GetInt64 does not work.")
}
if *uintFlag != 24 {
t.Error("uint flag should be 24, is ", *uintFlag)
}
if v, err := f.GetUint("uint"); err != nil || v != *uintFlag {
t.Error("GetUint does not work.")
}
if *uint8Flag != 8 {
t.Error("uint8 flag should be 8, is ", *uint8Flag)
}
if v, err := f.GetUint8("uint8"); err != nil || v != *uint8Flag {
t.Error("GetUint8 does not work.")
}
if *uint16Flag != 16 {
t.Error("uint16 flag should be 16, is ", *uint16Flag)
}
if v, err := f.GetUint16("uint16"); err != nil || v != *uint16Flag {
t.Error("GetUint16 does not work.")
}
if *uint32Flag != 32 {
t.Error("uint32 flag should be 32, is ", *uint32Flag)
}
if v, err := f.GetUint32("uint32"); err != nil || v != *uint32Flag {
t.Error("GetUint32 does not work.")
}
if *uint64Flag != 25 {
t.Error("uint64 flag should be 25, is ", *uint64Flag)
}
if v, err := f.GetUint64("uint64"); err != nil || v != *uint64Flag {
t.Error("GetUint64 does not work.")
}
if *stringFlag != "hello" {
t.Error("string flag should be `hello`, is ", *stringFlag)
}
if v, err := f.GetString("string"); err != nil || v != *stringFlag {
t.Error("GetString does not work.")
}
if *float32Flag != -172e12 {
t.Error("float32 flag should be -172e12, is ", *float32Flag)
}
if v, err := f.GetFloat32("float32"); err != nil || v != *float32Flag {
t.Errorf("GetFloat32 returned %v but float32Flag was %v", v, *float32Flag)
}
if *float64Flag != 2718e28 {
t.Error("float64 flag should be 2718e28, is ", *float64Flag)
}
if v, err := f.GetFloat64("float64"); err != nil || v != *float64Flag {
t.Errorf("GetFloat64 returned %v but float64Flag was %v", v, *float64Flag)
}
if !(*ipFlag).Equal(net.ParseIP("10.11.12.13")) {
t.Error("ip flag should be 10.11.12.13, is ", *ipFlag)
}
if v, err := f.GetIP("ip"); err != nil || !v.Equal(*ipFlag) {
t.Errorf("GetIP returned %v but ipFlag was %v", v, *ipFlag)
}
if (*maskFlag).String() != ParseIPv4Mask("255.255.255.0").String() {
t.Error("mask flag should be 255.255.255.0, is ", (*maskFlag).String())
}
if v, err := f.GetIPv4Mask("mask"); err != nil || v.String() != (*maskFlag).String() {
t.Errorf("GetIP returned %v maskFlag was %v error was %v", v, *maskFlag, err)
}
if *durationFlag != 2*time.Minute {
t.Error("duration flag should be 2m, is ", *durationFlag)
}
if v, err := f.GetDuration("duration"); err != nil || v != *durationFlag {
t.Error("GetDuration does not work.")
}
if _, err := f.GetInt("duration"); err == nil {
t.Error("GetInt parsed a time.Duration?!?!")
}
if *optionalIntNoValueFlag != 9 {
t.Error("optional int flag should be the default value, is ", *optionalIntNoValueFlag)
}
if *optionalIntWithValueFlag != 42 {
t.Error("optional int flag should be 42, is ", *optionalIntWithValueFlag)
}
if len(f.Args()) != 1 {
t.Error("expected one argument, got", len(f.Args()))
} else if f.Args()[0] != extra {
t.Errorf("expected argument %q got %q", extra, f.Args()[0])
}
}
func TestShorthand(t *testing.T) {
f := NewFlagSet("shorthand", ContinueOnError)
if f.Parsed() {
t.Error("f.Parse() = true before Parse")
}
boolaFlag := f.BoolP("boola", "a", false, "bool value")
boolbFlag := f.BoolP("boolb", "b", false, "bool2 value")
boolcFlag := f.BoolP("boolc", "c", false, "bool3 value")
booldFlag := f.BoolP("boold", "d", false, "bool4 value")
stringaFlag := f.StringP("stringa", "s", "0", "string value")
stringzFlag := f.StringP("stringz", "z", "0", "string value")
extra := "interspersed-argument"
notaflag := "--i-look-like-a-flag"
args := []string{
"-ab",
extra,
"-cs",
"hello",
"-z=something",
"-d=true",
"--",
notaflag,
}
f.SetOutput(ioutil.Discard)
if err := f.Parse(args); err != nil {
t.Error("expected no error, got ", err)
}
if !f.Parsed() {
t.Error("f.Parse() = false after Parse")
}
if *boolaFlag != true {
t.Error("boola flag should be true, is ", *boolaFlag)
}
if *boolbFlag != true {
t.Error("boolb flag should be true, is ", *boolbFlag)
}
if *boolcFlag != true {
t.Error("boolc flag should be true, is ", *boolcFlag)
}
if *booldFlag != true {
t.Error("boold flag should be true, is ", *booldFlag)
}
if *stringaFlag != "hello" {
t.Error("stringa flag should be `hello`, is ", *stringaFlag)
}
if *stringzFlag != "something" {
t.Error("stringz flag should be `something`, is ", *stringzFlag)
}
if len(f.Args()) != 2 {
t.Error("expected one argument, got", len(f.Args()))
} else if f.Args()[0] != extra {
t.Errorf("expected argument %q got %q", extra, f.Args()[0])
} else if f.Args()[1] != notaflag {
t.Errorf("expected argument %q got %q", notaflag, f.Args()[1])
}
if f.ArgsLenAtDash() != 1 {
t.Errorf("expected argsLenAtDash %d got %d", f.ArgsLenAtDash(), 1)
}
}
func TestParse(t *testing.T) {
ResetForTesting(func() { t.Error("bad parse") })
testParse(GetCommandLine(), t)
}
func TestFlagSetParse(t *testing.T) {
testParse(NewFlagSet("test", ContinueOnError), t)
}
func TestChangedHelper(t *testing.T) {
f := NewFlagSet("changedtest", ContinueOnError)
_ = f.Bool("changed", false, "changed bool")
_ = f.Bool("settrue", true, "true to true")
_ = f.Bool("setfalse", false, "false to false")
_ = f.Bool("unchanged", false, "unchanged bool")
args := []string{"--changed", "--settrue", "--setfalse=false"}
if err := f.Parse(args); err != nil {
t.Error("f.Parse() = false after Parse")
}
if !f.Changed("changed") {
t.Errorf("--changed wasn't changed!")
}
if !f.Changed("settrue") {
t.Errorf("--settrue wasn't changed!")
}
if !f.Changed("setfalse") {
t.Errorf("--setfalse wasn't changed!")
}
if f.Changed("unchanged") {
t.Errorf("--unchanged was changed!")
}
if f.Changed("invalid") {
t.Errorf("--invalid was changed!")
}
if f.ArgsLenAtDash() != -1 {
t.Errorf("Expected argsLenAtDash: %d but got %d", -1, f.ArgsLenAtDash())
}
}
func replaceSeparators(name string, from []string, to string) string {
result := name
for _, sep := range from {
result = strings.Replace(result, sep, to, -1)
}
// Type convert to indicate normalization has been done.
return result
}
func wordSepNormalizeFunc(f *FlagSet, name string) NormalizedName {
seps := []string{"-", "_"}
name = replaceSeparators(name, seps, ".")
normalizeFlagNameInvocations++
return NormalizedName(name)
}
func testWordSepNormalizedNames(args []string, t *testing.T) {
f := NewFlagSet("normalized", ContinueOnError)
if f.Parsed() {
t.Error("f.Parse() = true before Parse")
}
withDashFlag := f.Bool("with-dash-flag", false, "bool value")
// Set this after some flags have been added and before others.
f.SetNormalizeFunc(wordSepNormalizeFunc)
withUnderFlag := f.Bool("with_under_flag", false, "bool value")
withBothFlag := f.Bool("with-both_flag", false, "bool value")
if err := f.Parse(args); err != nil {
t.Fatal(err)
}
if !f.Parsed() {
t.Error("f.Parse() = false after Parse")
}
if *withDashFlag != true {
t.Error("withDashFlag flag should be true, is ", *withDashFlag)
}
if *withUnderFlag != true {
t.Error("withUnderFlag flag should be true, is ", *withUnderFlag)
}
if *withBothFlag != true {
t.Error("withBothFlag flag should be true, is ", *withBothFlag)
}
}
func TestWordSepNormalizedNames(t *testing.T) {
args := []string{
"--with-dash-flag",
"--with-under-flag",
"--with-both-flag",
}
testWordSepNormalizedNames(args, t)
args = []string{
"--with_dash_flag",
"--with_under_flag",
"--with_both_flag",
}
testWordSepNormalizedNames(args, t)
args = []string{
"--with-dash_flag",
"--with-under_flag",
"--with-both_flag",
}
testWordSepNormalizedNames(args, t)
}
func aliasAndWordSepFlagNames(f *FlagSet, name string) NormalizedName {
seps := []string{"-", "_"}
oldName := replaceSeparators("old-valid_flag", seps, ".")
newName := replaceSeparators("valid-flag", seps, ".")
name = replaceSeparators(name, seps, ".")
switch name {
case oldName:
name = newName
break
}
return NormalizedName(name)
}
func TestCustomNormalizedNames(t *testing.T) {
f := NewFlagSet("normalized", ContinueOnError)
if f.Parsed() {
t.Error("f.Parse() = true before Parse")
}
validFlag := f.Bool("valid-flag", false, "bool value")
f.SetNormalizeFunc(aliasAndWordSepFlagNames)
someOtherFlag := f.Bool("some-other-flag", false, "bool value")
args := []string{"--old_valid_flag", "--some-other_flag"}
if err := f.Parse(args); err != nil {
t.Fatal(err)
}
if *validFlag != true {
t.Errorf("validFlag is %v even though we set the alias --old_valid_falg", *validFlag)
}
if *someOtherFlag != true {
t.Error("someOtherFlag should be true, is ", *someOtherFlag)
}
}
// Every flag we add, the name (displayed also in usage) should normalized
func TestNormalizationFuncShouldChangeFlagName(t *testing.T) {
// Test normalization after addition
f := NewFlagSet("normalized", ContinueOnError)
f.Bool("valid_flag", false, "bool value")
if f.Lookup("valid_flag").Name != "valid_flag" {
t.Error("The new flag should have the name 'valid_flag' instead of ", f.Lookup("valid_flag").Name)
}
f.SetNormalizeFunc(wordSepNormalizeFunc)
if f.Lookup("valid_flag").Name != "valid.flag" {
t.Error("The new flag should have the name 'valid.flag' instead of ", f.Lookup("valid_flag").Name)
}
// Test normalization before addition
f = NewFlagSet("normalized", ContinueOnError)
f.SetNormalizeFunc(wordSepNormalizeFunc)
f.Bool("valid_flag", false, "bool value")
if f.Lookup("valid_flag").Name != "valid.flag" {
t.Error("The new flag should have the name 'valid.flag' instead of ", f.Lookup("valid_flag").Name)
}
}
// Declare a user-defined flag type.
type flagVar []string
func (f *flagVar) String() string {
return fmt.Sprint([]string(*f))
}
func (f *flagVar) Set(value string) error {
*f = append(*f, value)
return nil
}
func (f *flagVar) Type() string {
return "flagVar"
}
func TestUserDefined(t *testing.T) {
var flags FlagSet
flags.Init("test", ContinueOnError)
var v flagVar
flags.VarP(&v, "v", "v", "usage")
if err := flags.Parse([]string{"--v=1", "-v2", "-v", "3"}); err != nil {
t.Error(err)
}
if len(v) != 3 {
t.Fatal("expected 3 args; got ", len(v))
}
expect := "[1 2 3]"
if v.String() != expect {
t.Errorf("expected value %q got %q", expect, v.String())
}
}
func TestSetOutput(t *testing.T) {
var flags FlagSet
var buf bytes.Buffer
flags.SetOutput(&buf)
flags.Init("test", ContinueOnError)
flags.Parse([]string{"--unknown"})
if out := buf.String(); !strings.Contains(out, "--unknown") {
t.Logf("expected output mentioning unknown; got %q", out)
}
}
// This tests that one can reset the flags. This still works but not well, and is
// superseded by FlagSet.
func TestChangingArgs(t *testing.T) {
ResetForTesting(func() { t.Fatal("bad parse") })
oldArgs := os.Args
defer func() { os.Args = oldArgs }()
os.Args = []string{"cmd", "--before", "subcmd"}
before := Bool("before", false, "")
if err := GetCommandLine().Parse(os.Args[1:]); err != nil {
t.Fatal(err)
}
cmd := Arg(0)
os.Args = []string{"subcmd", "--after", "args"}
after := Bool("after", false, "")
Parse()
args := Args()
if !*before || cmd != "subcmd" || !*after || len(args) != 1 || args[0] != "args" {
t.Fatalf("expected true subcmd true [args] got %v %v %v %v", *before, cmd, *after, args)
}
}
// Test that -help invokes the usage message and returns ErrHelp.
func TestHelp(t *testing.T) {
var helpCalled = false
fs := NewFlagSet("help test", ContinueOnError)
fs.Usage = func() { helpCalled = true }
var flag bool
fs.BoolVar(&flag, "flag", false, "regular flag")
// Regular flag invocation should work
err := fs.Parse([]string{"--flag=true"})
if err != nil {
t.Fatal("expected no error; got ", err)
}
if !flag {
t.Error("flag was not set by --flag")
}
if helpCalled {
t.Error("help called for regular flag")
helpCalled = false // reset for next test
}
// Help flag should work as expected.
err = fs.Parse([]string{"--help"})
if err == nil {
t.Fatal("error expected")
}
if err != ErrHelp {
t.Fatal("expected ErrHelp; got ", err)
}
if !helpCalled {
t.Fatal("help was not called")
}
// If we define a help flag, that should override.
var help bool
fs.BoolVar(&help, "help", false, "help flag")
helpCalled = false
err = fs.Parse([]string{"--help"})
if err != nil {
t.Fatal("expected no error for defined --help; got ", err)
}
if helpCalled {
t.Fatal("help was called; should not have been for defined help flag")
}
}
func TestNoInterspersed(t *testing.T) {
f := NewFlagSet("test", ContinueOnError)
f.SetInterspersed(false)
f.Bool("true", true, "always true")
f.Bool("false", false, "always false")
err := f.Parse([]string{"--true", "break", "--false"})
if err != nil {
t.Fatal("expected no error; got ", err)
}
args := f.Args()
if len(args) != 2 || args[0] != "break" || args[1] != "--false" {
t.Fatal("expected interspersed options/non-options to fail")
}
}
func TestTermination(t *testing.T) {
f := NewFlagSet("termination", ContinueOnError)
boolFlag := f.BoolP("bool", "l", false, "bool value")
if f.Parsed() {
t.Error("f.Parse() = true before Parse")
}
arg1 := "ls"
arg2 := "-l"
args := []string{
"--",
arg1,
arg2,
}
f.SetOutput(ioutil.Discard)
if err := f.Parse(args); err != nil {
t.Fatal("expected no error; got ", err)
}
if !f.Parsed() {
t.Error("f.Parse() = false after Parse")
}
if *boolFlag {
t.Error("expected boolFlag=false, got true")
}
if len(f.Args()) != 2 {
t.Errorf("expected 2 arguments, got %d: %v", len(f.Args()), f.Args())
}
if f.Args()[0] != arg1 {
t.Errorf("expected argument %q got %q", arg1, f.Args()[0])
}
if f.Args()[1] != arg2 {
t.Errorf("expected argument %q got %q", arg2, f.Args()[1])
}
if f.ArgsLenAtDash() != 0 {
t.Errorf("expected argsLenAtDash %d got %d", 0, f.ArgsLenAtDash())
}
}
func TestDeprecatedFlagInDocs(t *testing.T) {
f := NewFlagSet("bob", ContinueOnError)
f.Bool("badflag", true, "always true")
f.MarkDeprecated("badflag", "use --good-flag instead")
out := new(bytes.Buffer)
f.SetOutput(out)
f.PrintDefaults()
if strings.Contains(out.String(), "badflag") {
t.Errorf("found deprecated flag in usage!")
}
}
func TestDeprecatedFlagShorthandInDocs(t *testing.T) {
f := NewFlagSet("bob", ContinueOnError)
name := "noshorthandflag"
f.BoolP(name, "n", true, "always true")
f.MarkShorthandDeprecated("noshorthandflag", fmt.Sprintf("use --%s instead", name))
out := new(bytes.Buffer)
f.SetOutput(out)
f.PrintDefaults()
if strings.Contains(out.String(), "-n,") {
t.Errorf("found deprecated flag shorthand in usage!")
}
}
func parseReturnStderr(t *testing.T, f *FlagSet, args []string) (string, error) {
oldStderr := os.Stderr
r, w, _ := os.Pipe()
os.Stderr = w
err := f.Parse(args)
outC := make(chan string)
// copy the output in a separate goroutine so printing can't block indefinitely
go func() {
var buf bytes.Buffer
io.Copy(&buf, r)
outC <- buf.String()
}()
w.Close()
os.Stderr = oldStderr
out := <-outC
return out, err
}
func TestDeprecatedFlagUsage(t *testing.T) {
f := NewFlagSet("bob", ContinueOnError)
f.Bool("badflag", true, "always true")
usageMsg := "use --good-flag instead"
f.MarkDeprecated("badflag", usageMsg)
args := []string{"--badflag"}
out, err := parseReturnStderr(t, f, args)
if err != nil {
t.Fatal("expected no error; got ", err)
}
if !strings.Contains(out, usageMsg) {
t.Errorf("usageMsg not printed when using a deprecated flag!")
}
}
func TestDeprecatedFlagShorthandUsage(t *testing.T) {
f := NewFlagSet("bob", ContinueOnError)
name := "noshorthandflag"
f.BoolP(name, "n", true, "always true")
usageMsg := fmt.Sprintf("use --%s instead", name)
f.MarkShorthandDeprecated(name, usageMsg)
args := []string{"-n"}
out, err := parseReturnStderr(t, f, args)
if err != nil {
t.Fatal("expected no error; got ", err)
}
if !strings.Contains(out, usageMsg) {
t.Errorf("usageMsg not printed when using a deprecated flag!")
}
}
func TestDeprecatedFlagUsageNormalized(t *testing.T) {
f := NewFlagSet("bob", ContinueOnError)
f.Bool("bad-double_flag", true, "always true")
f.SetNormalizeFunc(wordSepNormalizeFunc)
usageMsg := "use --good-flag instead"
f.MarkDeprecated("bad_double-flag", usageMsg)
args := []string{"--bad_double_flag"}
out, err := parseReturnStderr(t, f, args)
if err != nil {
t.Fatal("expected no error; got ", err)
}
if !strings.Contains(out, usageMsg) {
t.Errorf("usageMsg not printed when using a deprecated flag!")
}
}
// Name normalization function should be called only once on flag addition
func TestMultipleNormalizeFlagNameInvocations(t *testing.T) {
normalizeFlagNameInvocations = 0
f := NewFlagSet("normalized", ContinueOnError)
f.SetNormalizeFunc(wordSepNormalizeFunc)
f.Bool("with_under_flag", false, "bool value")
if normalizeFlagNameInvocations != 1 {
t.Fatal("Expected normalizeFlagNameInvocations to be 1; got ", normalizeFlagNameInvocations)
}
}
//
func TestHiddenFlagInUsage(t *testing.T) {
f := NewFlagSet("bob", ContinueOnError)
f.Bool("secretFlag", true, "shhh")
f.MarkHidden("secretFlag")
out := new(bytes.Buffer)
f.SetOutput(out)
f.PrintDefaults()
if strings.Contains(out.String(), "secretFlag") {
t.Errorf("found hidden flag in usage!")
}
}
//
func TestHiddenFlagUsage(t *testing.T) {
f := NewFlagSet("bob", ContinueOnError)
f.Bool("secretFlag", true, "shhh")
f.MarkHidden("secretFlag")
args := []string{"--secretFlag"}
out, err := parseReturnStderr(t, f, args)
if err != nil {
t.Fatal("expected no error; got ", err)
}
if strings.Contains(out, "shhh") {
t.Errorf("usage message printed when using a hidden flag!")
}
}
const defaultOutput = ` --A for bootstrapping, allow 'any' type
--Alongflagname disable bounds checking
-C, --CCC a boolean defaulting to true (default true)
--D path set relative path for local imports
--F number a non-zero number (default 2.7)
--G float a float that defaults to zero
--N int a non-zero int (default 27)
--ND1 string[="bar"] a string with NoOptDefVal (default "foo")
--ND2 num[=4321] a num with NoOptDefVal (default 1234)
--Z int an int that defaults to zero
--maxT timeout set timeout for dial
`
func TestPrintDefaults(t *testing.T) {
fs := NewFlagSet("print defaults test", ContinueOnError)
var buf bytes.Buffer
fs.SetOutput(&buf)
fs.Bool("A", false, "for bootstrapping, allow 'any' type")
fs.Bool("Alongflagname", false, "disable bounds checking")
fs.BoolP("CCC", "C", true, "a boolean defaulting to true")
fs.String("D", "", "set relative `path` for local imports")
fs.Float64("F", 2.7, "a non-zero `number`")
fs.Float64("G", 0, "a float that defaults to zero")
fs.Int("N", 27, "a non-zero int")
fs.Int("Z", 0, "an int that defaults to zero")
fs.Duration("maxT", 0, "set `timeout` for dial")
fs.String("ND1", "foo", "a string with NoOptDefVal")
fs.Lookup("ND1").NoOptDefVal = "bar"
fs.Int("ND2", 1234, "a `num` with NoOptDefVal")
fs.Lookup("ND2").NoOptDefVal = "4321"
fs.PrintDefaults()
got := buf.String()
if got != defaultOutput {
fmt.Println("\n" + got)
fmt.Println("\n" + defaultOutput)
t.Errorf("got %q want %q\n", got, defaultOutput)
}
}

39
vendor/github.com/spf13/pflag/golangflag_test.go generated vendored
View File

@@ -1,39 +0,0 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package pflag
import (
goflag "flag"
"testing"
)
func TestGoflags(t *testing.T) {
goflag.String("stringFlag", "stringFlag", "stringFlag")
goflag.Bool("boolFlag", false, "boolFlag")
f := NewFlagSet("test", ContinueOnError)
f.AddGoFlagSet(goflag.CommandLine)
err := f.Parse([]string{"--stringFlag=bob", "--boolFlag"})
if err != nil {
t.Fatal("expected no error; get", err)
}
getString, err := f.GetString("stringFlag")
if err != nil {
t.Fatal("expected no error; get", err)
}
if getString != "bob" {
t.Fatalf("expected getString=bob but got getString=%s", getString)
}
getBool, err := f.GetBool("boolFlag")
if err != nil {
t.Fatal("expected no error; get", err)
}
if getBool != true {
t.Fatalf("expected getBool=true but got getBool=%v", getBool)
}
}

162
vendor/github.com/spf13/pflag/int_slice_test.go generated vendored
View File

@@ -1,162 +0,0 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package pflag
import (
"fmt"
"strconv"
"strings"
"testing"
)
func setUpISFlagSet(isp *[]int) *FlagSet {
f := NewFlagSet("test", ContinueOnError)
f.IntSliceVar(isp, "is", []int{}, "Command separated list!")
return f
}
func setUpISFlagSetWithDefault(isp *[]int) *FlagSet {
f := NewFlagSet("test", ContinueOnError)
f.IntSliceVar(isp, "is", []int{0, 1}, "Command separated list!")
return f
}
func TestEmptyIS(t *testing.T) {
var is []int
f := setUpISFlagSet(&is)
err := f.Parse([]string{})
if err != nil {
t.Fatal("expected no error; got", err)
}
getIS, err := f.GetIntSlice("is")
if err != nil {
t.Fatal("got an error from GetIntSlice():", err)
}
if len(getIS) != 0 {
t.Fatalf("got is %v with len=%d but expected length=0", getIS, len(getIS))
}
}
func TestIS(t *testing.T) {
var is []int
f := setUpISFlagSet(&is)
vals := []string{"1", "2", "4", "3"}
arg := fmt.Sprintf("--is=%s", strings.Join(vals, ","))
err := f.Parse([]string{arg})
if err != nil {
t.Fatal("expected no error; got", err)
}
for i, v := range is {
d, err := strconv.Atoi(vals[i])
if err != nil {
t.Fatalf("got error: %v", err)
}
if d != v {
t.Fatalf("expected is[%d] to be %s but got: %d", i, vals[i], v)
}
}
getIS, err := f.GetIntSlice("is")
for i, v := range getIS {
d, err := strconv.Atoi(vals[i])
if err != nil {
t.Fatalf("got error: %v", err)
}
if d != v {
t.Fatalf("expected is[%d] to be %s but got: %d from GetIntSlice", i, vals[i], v)
}
}
}
func TestISDefault(t *testing.T) {
var is []int
f := setUpISFlagSetWithDefault(&is)
vals := []string{"0", "1"}
err := f.Parse([]string{})
if err != nil {
t.Fatal("expected no error; got", err)
}
for i, v := range is {
d, err := strconv.Atoi(vals[i])
if err != nil {
t.Fatalf("got error: %v", err)
}
if d != v {
t.Fatalf("expected is[%d] to be %d but got: %d", i, d, v)
}
}
getIS, err := f.GetIntSlice("is")
if err != nil {
t.Fatal("got an error from GetIntSlice():", err)
}
for i, v := range getIS {
d, err := strconv.Atoi(vals[i])
if err != nil {
t.Fatal("got an error from GetIntSlice():", err)
}
if d != v {
t.Fatalf("expected is[%d] to be %d from GetIntSlice but got: %d", i, d, v)
}
}
}
func TestISWithDefault(t *testing.T) {
var is []int
f := setUpISFlagSetWithDefault(&is)
vals := []string{"1", "2"}
arg := fmt.Sprintf("--is=%s", strings.Join(vals, ","))
err := f.Parse([]string{arg})
if err != nil {
t.Fatal("expected no error; got", err)
}
for i, v := range is {
d, err := strconv.Atoi(vals[i])
if err != nil {
t.Fatalf("got error: %v", err)
}
if d != v {
t.Fatalf("expected is[%d] to be %d but got: %d", i, d, v)
}
}
getIS, err := f.GetIntSlice("is")
if err != nil {
t.Fatal("got an error from GetIntSlice():", err)
}
for i, v := range getIS {
d, err := strconv.Atoi(vals[i])
if err != nil {
t.Fatalf("got error: %v", err)
}
if d != v {
t.Fatalf("expected is[%d] to be %d from GetIntSlice but got: %d", i, d, v)
}
}
}
func TestISCalledTwice(t *testing.T) {
var is []int
f := setUpISFlagSet(&is)
in := []string{"1,2", "3"}
expected := []int{1, 2, 3}
argfmt := "--is=%s"
arg1 := fmt.Sprintf(argfmt, in[0])
arg2 := fmt.Sprintf(argfmt, in[1])
err := f.Parse([]string{arg1, arg2})
if err != nil {
t.Fatal("expected no error; got", err)
}
for i, v := range is {
if expected[i] != v {
t.Fatalf("expected is[%d] to be %d but got: %d", i, expected[i], v)
}
}
}

63
vendor/github.com/spf13/pflag/ip_test.go generated vendored
View File

@@ -1,63 +0,0 @@
package pflag
import (
"fmt"
"net"
"os"
"testing"
)
func setUpIP(ip *net.IP) *FlagSet {
f := NewFlagSet("test", ContinueOnError)
f.IPVar(ip, "address", net.ParseIP("0.0.0.0"), "IP Address")
return f
}
func TestIP(t *testing.T) {
testCases := []struct {
input string
success bool
expected string
}{
{"0.0.0.0", true, "0.0.0.0"},
{" 0.0.0.0 ", true, "0.0.0.0"},
{"1.2.3.4", true, "1.2.3.4"},
{"127.0.0.1", true, "127.0.0.1"},
{"255.255.255.255", true, "255.255.255.255"},
{"", false, ""},
{"0", false, ""},
{"localhost", false, ""},
{"0.0.0", false, ""},
{"0.0.0.", false, ""},
{"0.0.0.0.", false, ""},
{"0.0.0.256", false, ""},
{"0 . 0 . 0 . 0", false, ""},
}
devnull, _ := os.Open(os.DevNull)
os.Stderr = devnull
for i := range testCases {
var addr net.IP
f := setUpIP(&addr)
tc := &testCases[i]
arg := fmt.Sprintf("--address=%s", tc.input)
err := f.Parse([]string{arg})
if err != nil && tc.success == true {
t.Errorf("expected success, got %q", err)
continue
} else if err == nil && tc.success == false {
t.Errorf("expected failure")
continue
} else if tc.success {
ip, err := f.GetIP("address")
if err != nil {
t.Errorf("Got error trying to fetch the IP flag: %v", err)
}
if ip.String() != tc.expected {
t.Errorf("expected %q, got %q", tc.expected, ip.String())
}
}
}
}

70
vendor/github.com/spf13/pflag/ipnet_test.go generated vendored
View File

@@ -1,70 +0,0 @@
package pflag
import (
"fmt"
"net"
"os"
"testing"
)
func setUpIPNet(ip *net.IPNet) *FlagSet {
f := NewFlagSet("test", ContinueOnError)
_, def, _ := net.ParseCIDR("0.0.0.0/0")
f.IPNetVar(ip, "address", *def, "IP Address")
return f
}
func TestIPNet(t *testing.T) {
testCases := []struct {
input string
success bool
expected string
}{
{"0.0.0.0/0", true, "0.0.0.0/0"},
{" 0.0.0.0/0 ", true, "0.0.0.0/0"},
{"1.2.3.4/8", true, "1.0.0.0/8"},
{"127.0.0.1/16", true, "127.0.0.0/16"},
{"255.255.255.255/19", true, "255.255.224.0/19"},
{"255.255.255.255/32", true, "255.255.255.255/32"},
{"", false, ""},
{"/0", false, ""},
{"0", false, ""},
{"0/0", false, ""},
{"localhost/0", false, ""},
{"0.0.0/4", false, ""},
{"0.0.0./8", false, ""},
{"0.0.0.0./12", false, ""},
{"0.0.0.256/16", false, ""},
{"0.0.0.0 /20", false, ""},
{"0.0.0.0/ 24", false, ""},
{"0 . 0 . 0 . 0 / 28", false, ""},
{"0.0.0.0/33", false, ""},
}
devnull, _ := os.Open(os.DevNull)
os.Stderr = devnull
for i := range testCases {
var addr net.IPNet
f := setUpIPNet(&addr)
tc := &testCases[i]
arg := fmt.Sprintf("--address=%s", tc.input)
err := f.Parse([]string{arg})
if err != nil && tc.success == true {
t.Errorf("expected success, got %q", err)
continue
} else if err == nil && tc.success == false {
t.Errorf("expected failure")
continue
} else if tc.success {
ip, err := f.GetIPNet("address")
if err != nil {
t.Errorf("Got error trying to fetch the IP flag: %v", err)
}
if ip.String() != tc.expected {
t.Errorf("expected %q, got %q", tc.expected, ip.String())
}
}
}
}

161
vendor/github.com/spf13/pflag/string_slice_test.go generated vendored
View File

@@ -1,161 +0,0 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package pflag
import (
"fmt"
"strings"
"testing"
)
func setUpSSFlagSet(ssp *[]string) *FlagSet {
f := NewFlagSet("test", ContinueOnError)
f.StringSliceVar(ssp, "ss", []string{}, "Command separated list!")
return f
}
func setUpSSFlagSetWithDefault(ssp *[]string) *FlagSet {
f := NewFlagSet("test", ContinueOnError)
f.StringSliceVar(ssp, "ss", []string{"default", "values"}, "Command separated list!")
return f
}
func TestEmptySS(t *testing.T) {
var ss []string
f := setUpSSFlagSet(&ss)
err := f.Parse([]string{})
if err != nil {
t.Fatal("expected no error; got", err)
}
getSS, err := f.GetStringSlice("ss")
if err != nil {
t.Fatal("got an error from GetStringSlice():", err)
}
if len(getSS) != 0 {
t.Fatalf("got ss %v with len=%d but expected length=0", getSS, len(getSS))
}
}
func TestSS(t *testing.T) {
var ss []string
f := setUpSSFlagSet(&ss)
vals := []string{"one", "two", "4", "3"}
arg := fmt.Sprintf("--ss=%s", strings.Join(vals, ","))
err := f.Parse([]string{arg})
if err != nil {
t.Fatal("expected no error; got", err)
}
for i, v := range ss {
if vals[i] != v {
t.Fatalf("expected ss[%d] to be %s but got: %s", i, vals[i], v)
}
}
getSS, err := f.GetStringSlice("ss")
if err != nil {
t.Fatal("got an error from GetStringSlice():", err)
}
for i, v := range getSS {
if vals[i] != v {
t.Fatalf("expected ss[%d] to be %s from GetStringSlice but got: %s", i, vals[i], v)
}
}
}
func TestSSDefault(t *testing.T) {
var ss []string
f := setUpSSFlagSetWithDefault(&ss)
vals := []string{"default", "values"}
err := f.Parse([]string{})
if err != nil {
t.Fatal("expected no error; got", err)
}
for i, v := range ss {
if vals[i] != v {
t.Fatalf("expected ss[%d] to be %s but got: %s", i, vals[i], v)
}
}
getSS, err := f.GetStringSlice("ss")
if err != nil {
t.Fatal("got an error from GetStringSlice():", err)
}
for i, v := range getSS {
if vals[i] != v {
t.Fatalf("expected ss[%d] to be %s from GetStringSlice but got: %s", i, vals[i], v)
}
}
}
func TestSSWithDefault(t *testing.T) {
var ss []string
f := setUpSSFlagSetWithDefault(&ss)
vals := []string{"one", "two", "4", "3"}
arg := fmt.Sprintf("--ss=%s", strings.Join(vals, ","))
err := f.Parse([]string{arg})
if err != nil {
t.Fatal("expected no error; got", err)
}
for i, v := range ss {
if vals[i] != v {
t.Fatalf("expected ss[%d] to be %s but got: %s", i, vals[i], v)
}
}
getSS, err := f.GetStringSlice("ss")
if err != nil {
t.Fatal("got an error from GetStringSlice():", err)
}
for i, v := range getSS {
if vals[i] != v {
t.Fatalf("expected ss[%d] to be %s from GetStringSlice but got: %s", i, vals[i], v)
}
}
}
func TestSSCalledTwice(t *testing.T) {
var ss []string
f := setUpSSFlagSet(&ss)
in := []string{"one,two", "three"}
expected := []string{"one", "two", "three"}
argfmt := "--ss=%s"
arg1 := fmt.Sprintf(argfmt, in[0])
arg2 := fmt.Sprintf(argfmt, in[1])
err := f.Parse([]string{arg1, arg2})
if err != nil {
t.Fatal("expected no error; got", err)
}
for i, v := range ss {
if expected[i] != v {
t.Fatalf("expected ss[%d] to be %s but got: %s", i, expected[i], v)
}
}
}
func TestSSWithComma(t *testing.T) {
var ss []string
f := setUpSSFlagSet(&ss)
in := []string{`"one,two"`, `"three"`}
expected := []string{"one,two", "three"}
argfmt := "--ss=%s"
arg1 := fmt.Sprintf(argfmt, in[0])
arg2 := fmt.Sprintf(argfmt, in[1])
err := f.Parse([]string{arg1, arg2})
if err != nil {
t.Fatal("expected no error; got", err)
}
for i, v := range ss {
if expected[i] != v {
t.Fatalf("expected ss[%d] to be %s but got: %s", i, expected[i], v)
}
}
}