How to read a command output with its color attributes?

Question

Is it possible to read a commands output with its color attributes. I mean, can we read the actual escape sequences.

for instance; A command output is red colored:

Hello

I want to read it as :

\033[31;1;4mHello\033[0m

Currently I am reading it like:

func stat(hash string) string {
    cmd := exec.Command("git", "show", "--stat", hash)
    out, err := cmd.Output()
    if err != nil {
        return err.Error()
    }
    return string(out)
}

How are you reading command output? What have you tried? Show your code .What problems are you encountering? — Jonathan Hall, Feb 01 '19 at 09:18
Note that many commands will try to cleverly detect whether they’re printing to a terminal, and only print colours then. So if you redirect their output somewhere else chances are there are no ANSI escape sequences there. — Biffen, Feb 01 '19 at 09:31

score 2 · Accepted Answer · edited Oct 18 '20 at 13:37

Use the github.com/creack/pty library to run the command in a pty

This works for me

The escape sequences are visible in the output

package main

import (
    "github.com/creack/pty"
    "io"
    "os"
    "os/exec"
)

func main() {
    hash := os.Args[1]
    cmd := exec.Command("git", "show", "--stat", hash)
    f, err := pty.Start(cmd)
    if err != nil {
        panic(err)
    }

    io.Copy(os.Stdout, f)
}

How to read a command output with its color attributes?

1 Answers1

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