Git recursive pull

gitrecursive.go

package main

import (
	"io/ioutil"
	"os"
	"log"
	"os/exec"
	"bytes"
)

func main() {
	files, _ := ioutil.ReadDir("./")
	for _, f := range files {
		if f.IsDir() {
			err := os.Chdir(f.Name())
			if err != nil {
				log.Fatal("Could not change to directory ", f.Name())
			}

			log.Println("Switching to ", f.Name())

			cmd := exec.Command("git", "pull", "origin", getCurrentBranch())
			output, err := cmd.CombinedOutput()
			cmd.Run()

			if output != nil {
				log.Println(string(output))
			}

			if err != nil {
				log.Println("Could not pull into directory ", f.Name(), ": ", err)
			}

			os.Chdir("..")
		}
	}
}

func getCurrentBranch() string {
	cmd := exec.Command("git", "rev-parse", "--abbrev-ref", "HEAD")
	output, err := cmd.CombinedOutput()
	cmd.Run()

	if err != nil {
		log.Println("Could not retrieve current branch ", err)
	}

	return string(bytes.TrimSpace(output))
}