go.pipeline

go.pipeline is a utility library that imitates unix pipeline. It simplifies chaining unix commands (and other stuff) in Go.

Installation

go get -u github.com/songgao/go.pipeline

Documentation

http://godoc.org/github.com/songgao/go.pipeline

Examples

Execute a single unix command

package main

import "github.com/songgao/go.pipeline"

func main() {
	pipeline.StartPipelineWithCommand("uname", "-a").PrintAll()
}

Chain multiple unix commands

Following code is equal to ls -h -l /bin | egrep --color=always -e "\\ *[0-9.]*M\\ *", plus a counter pre-pended to each line.

package main

import (
	"fmt"
	"github.com/songgao/go.pipeline"
)

func main() {
	counter := 0

	pipeline.NewPipeline().
		ChainCommand("ls", "-h", "-l", "/bin").ChainCommand("egrep", "--color=always", "-e", `\ *[0-9.]*M\ *`).
		ChainLineProcessor(func(in string) string {
		counter++
		return fmt.Sprintf("%d:\t%s", counter, in)
	}, nil).PrintAll()
}

An equivalent shorter version is:

package main

import (
	"fmt"
	"github.com/songgao/go.pipeline"
)

func main() {
	counter := 0

	pipeline.NewPipeline().
		C("ls", "-h", "-l", "/bin").C("egrep", "--color=always", "-e", `\ *[0-9.]*M\ *`).
		L(func(in string) string {
		counter++
		return fmt.Sprintf("%d:\t%s", counter, in)
	}, nil).P()
}

Colorize go build output

Check out colorgo project: https://github.com/songgao/colorgo

TODO

• tee, etc.
• custom Station
• package doc
• more organized README.md

License

BSD 3-Clause License