Go get CMD output in real time

[Paulo Coutinho]

Hi

In my projecto on github.com/prsolucoes/goci im executing jobs in JavaScript throught otto parser.

When i need execute something using CMD i only get the output after finish. I need get while i receive to store on job output.

Hoe can i do that?

Thanks.

[Dave Cheney]

https://golang.org/pkg/os/exec/#Cmd.StdoutPipe ?

[Paulo Coutinho]

I already read about it, but i dont understand if it can help me.

I think that exists something that i can pass a closure and add the newlines to job output variable.

ex:

cmd.OnOutput(func (output string)) {

     job.Log(output)

     or

     job.OutputGroup[0] += output

}

Thanks.

[Shawn Milochik]

You can do it like this:

 $ cat count.sh 

#!/usr/bin/env bash

for x in {1..3}; do

    echo $x

    sleep 1

done

 $ cat main.go 

package main

import (

"os"

"os/exec"

)

func main() {

cmd := exec.Command("./count.sh")

cmd.Stdout = os.Stdout

cmd.Run()

}

[Paulo Coutinho]

Hi,

I solved the problem. Anyone can check here:

https://github.com/prsolucoes/goci/blob/master/models/domain/plugin_js.go#L95

@Dave, you are correct.

Thanks for any help.