Golang 删除文件并递归删除空目录的操作

func deleteFileOnDisk(localPath string) {
    log.Debugf("remove file: %s", localPath)
    if err := os.Remove(localPath); err != nil {
        log.Error(err)
    }
    dirsList := make([]string, 0, 0)
    for dir := path.Dir(localPath); dir != svr.dataDir && len(dir) > len(svr.dataDir); dir = path.Dir(dir) {
        dirsList = append(dirsList, dir)
    }
    sort.StringSlice(dirsList).Sort()
    for i := len(dirsList) - 1; i >= 0; i-- {
        f, err := os.Open(dirsList[i])
        if err != nil {
            log.Error(err)
        }
        fs, err2 := f.Readdirnames(1)
        if err2 == io.EOF && (fs == nil || len(fs) == 0) {
            f.Close()
            log.Debugf("remove dir: %s", dirsList[i])
            if err := os.Remove(dirsList[i]); err != nil {
                log.Error(err)
            }
            continue
        } else if err2 != nil {
            log.Error(err2)
        }
        f.Close()
    }
}

package main 
import (
    "io/ioutil"
    "os"
    "path"
)
 
func main() {
    dir, err := ioutil.ReadDir("/tmp")
    for _, d := range dir {
        os.RemoveAll(path.Join([]string{"tmp", d.Name()}...))
    }
}

find -type d -empty|xrags rmdir

package main 
import (
 "fmt"
 "io/ioutil"
 "os"
 "path"
)
 
func findEmptyFolder(dirname string) (emptys []string, err error) {
 // Golang学习 - io/ioutil 包
 // https://www.cnblogs.com/golove/p/3278444.html
 
 files, err := ioutil.ReadDir(dirname)
 if err != nil {
  return nil, err
 }
 // 判断底下是否有文件
 if len(files) == 0 {
  return []string{dirname}, nil
 }
 
 for _, file := range files {
  if file.IsDir() {
   edirs, err := findEmptyFolder(path.Join(dirname, file.Name()))
   if err != nil {
    return nil, err
   }
   if edirs != nil {
    emptys = append(emptys, edirs...)
   }
  }
 }
 return emptys, nil
}
 
func main() {
 if len(os.Args) != 2 {
  fmt.Println("Usage:", os.Args[0], "起始路径")
  return
 }
 emptys, err := findEmptyFolder(os.Args[1])
 if err != nil {
  fmt.Println(err.Error())
  return
 }
 for _, dir := range emptys {
  if err := os.Remove(dir); err != nil {
   fmt.Println("错误:", err.Error())
  } else {
   fmt.Println("删除成功:", dir)
  }
 }
}