utils/git_pull_all.go

   1 package utils
   2
   3 import (
   4         "io/ioutil"
   5         "log"
   6         "os"
   7         "os/exec"
   8         "sync"
   9 )
  10
  11 // Equivalent to the following shell alias
  12 // alias git-pull-all="ls -d */ | xargs -P12 -I{} git -C {} pull"
  13
  14 func GitPullAll() {
  15         currentDirectory, err := os.Getwd()
  16         if err != nil {
  17                 log.Fatal("Error when trying to get current directory!")
  18         } else {
  19                 log.Println("Pulling all git repositories in the directory: ", currentDirectory, "...")
  20
  21                 files, err := ioutil.ReadDir("./")
  22                 if err != nil {
  23                         log.Fatal(err.Error())
  24                 }
  25                 var wg sync.WaitGroup
  26
  27                 for _, f := range files {
  28                         if f.IsDir() {
  29                                 wg.Add(1)
  30                                 go doGitPull(&wg, f)
  31                         }
  32                 }
  33                 wg.Wait()
  34         }
  35 }
  36
  37 func doGitPull(wg *sync.WaitGroup, dir os.FileInfo) {
  38         defer wg.Done()
  39         output, err := exec.Command("git", "-C", dir.Name(), "pull", "--rebase").Output()
  40         if err != nil {
  41                 log.Println("Error pulling", dir.Name(), err.Error())
  42         }
  43         log.Println("Pulling", dir.Name(), "\n", string(output))
  44 }