graylog-project-cli/git/git.go

package git

import (
	"bytes"
	"github.com/Graylog2/graylog-project-cli/logger"
	"github.com/fatih/color"
	"os/exec"
	"strings"
)

func Git(commands ...string) {
	git(true, commands...)
}

func SilentGit(commands ...string) {
	git(false, commands...)
}

func git(verbose bool, commands ...string) {
	var stderr bytes.Buffer

	if verbose {
		logger.ColorInfo(color.FgGreen, "    git %v", strings.Join(commands, " "))
	}

	command := exec.Command("git", commands...)
	command.Stderr = &stderr
	out, err := command.Output()
	if err != nil {
		if ee, ok := err.(*exec.ExitError); ok {
			logger.Info("Git stderr: %v", string(ee.Stderr))
		}
		logger.Fatal("Error executing: git %v (%v)", commands, err)
	}

	logOutputBuffer(stderr.Bytes())
	logOutputBuffer(out)
}

func GitValue(commands ...string) string {
	var stderr bytes.Buffer

	command := exec.Command("git", commands...)
	command.Stderr = &stderr
	out, err := command.Output()
	if err != nil {
		if ee, ok := err.(*exec.ExitError); ok {
			logger.Info("Git stderr: %v", string(ee.Stderr))
		}
		logger.Fatal("Error executing: git %v (%v)", commands, err)
	}

	logOutputBuffer(stderr.Bytes())

	return strings.TrimSuffix(string(out), "\n")
}

func GitErrOk(commands ...string) {
	var stderr bytes.Buffer

	logger.ColorInfo(color.FgGreen, "    git %v", strings.Join(commands, " "))
	command := exec.Command("git", commands...)
	command.Stderr = &stderr
	out, err := command.Output()
	if err != nil {
		return
	}

	logOutputBuffer(stderr.Bytes())
	logOutputBuffer(out)
}

func logOutputBuffer(buf []byte) {
	for _, s := range strings.Split(string(buf), "\n") {
		if len(strings.TrimSpace(s)) > 0 {
			logger.ColorInfo(color.FgYellow, "      %v", s)
		}
	}
}