go.pipeline is a utility library that imitates unix pipeline. It simplifies chaining unix commands (and other stuff) in Go.
go get -u github.com/songgao/go.pipeline
http://godoc.org/github.com/songgao/go.pipeline
package main
import "github.com/songgao/go.pipeline"
func main() {
pipeline.StartPipelineWithCommand("uname", "-a").PrintAll()
}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()
}Check out colorgo project: https://github.com/songgao/colorgo
- tee, etc.
- custom Station
- package doc
- more organized README.md