easy way to unzip file with golang

Question

is there a easy way to unzip file with golang ?

right now my code is:

func Unzip(src, dest string) error {
    r, err := zip.OpenReader(src)
    if err !         


        

Answer 1

I would prefer using 7zip with Go, which would give you something like this.

func extractZip() {
    fmt.Println("extracting", zip_path)
    commandString := fmt.Sprintf(`7za e %s %s`, zip_path, dest_path)
    commandSlice := strings.Fields(commandString)
    fmt.Println(commandString)
    c := exec.Command(commandSlice[0], commandSlice[1:]...)
    e := c.Run()
    checkError(e)
}

Better example code

However, if using 7zip isn't possible, then try this. Defer a recover to catch the panics. (Example)

func checkError(e error){
  if e != nil {
    panic(e)
  }
}
func cloneZipItem(f *zip.File, dest string){
    // Create full directory path
    path := filepath.Join(dest, f.Name)
    fmt.Println("Creating", path)
    err := os.MkdirAll(filepath.Dir(path), os.ModeDir|os.ModePerm)
    checkError(err)

    // Clone if item is a file
    rc, err := f.Open()
    checkError(err)
    if !f.FileInfo().IsDir() {
        // Use os.Create() since Zip don't store file permissions.
        fileCopy, err := os.Create(path)
        checkError(err)
        _, err = io.Copy(fileCopy, rc)
        fileCopy.Close()
        checkError(err)
    }
    rc.Close()
}
func Extract(zip_path, dest string) {
    r, err := zip.OpenReader(zip_path)
    checkError(err)
    defer r.Close()
    for _, f := range r.File {
        cloneZipItem(f, dest)
    }
}