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59 lines
1.5 KiB
59 lines
1.5 KiB
# cli.go
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cli.go is simple, fast, and fun package for building command line apps in Go. The goal is to enable developers to write fast and distributable command line applications in an expressive way.
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## Overview
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Command line apps are usually so tiny that there is absolutely no reason why your code should *not* be self-documenting. Things like generating help text and parsing command flags/options should not hinder productivity when writing a command line app.
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This is where cli.go comes into play. cli.go makes command line programming fun, organized, and expressive!
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## Installation
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Make sure you have the a working Go environment. [See the install instructions](http://golang.org/doc/install.html).
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To install cli.go, simply run:
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```
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$ go get github.com/codegangsta/cli
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```
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Make sure your PATH includes to the `$GOPATH/bin` directory so your commands can be easily used:
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```
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export PATH=$PATH:$GOPATH/bin
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```
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## Example
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Being a programmer can be a lonely job. Thankfully by the power of automation that is not the case! Let's create a greeter app to fend off our demons of loneliness!
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``` go
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/* greet.go */
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package main
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import "os"
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import "github.com/codegangsta/cli"
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func main() {
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cli.Name = "greet"
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cli.Usage = "fight the loneliness!"
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cli.Action = func(c cli.Context) {
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println("Hello friend!")
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}
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cli.Run(os.Args)
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}
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```
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Install our command to the `$GOPATH/bin` directory:
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```
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$ go install
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```
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Finally run our new command:
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```
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$ greet
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Hello friend!
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```
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## About
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cli.go is written by none other than the [Code Gangsta](http://codegangsta.io)
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