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main.go
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main.go
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package main
import (
"fmt"
"io/fs"
"os"
"path/filepath"
"strings"
"sync"
)
func ignoreName(path string) bool {
return strings.Contains(path, ".svn") || strings.Contains(path, ".git")
}
func findEmptyDir(dir string, empty chan<- string) (int, error) {
if ignoreName(dir) {
return 0, nil
}
count := 0
err := filepath.WalkDir(dir, func(path string, d fs.DirEntry, err error) error {
if err != nil {
return nil
}
if dir == path {
return nil
}
if d.IsDir() {
subCount, _ := findEmptyDir(path, empty)
count += subCount
return nil
}
count++
return nil
})
if count == 0 {
empty <- dir
}
return count, err
}
func main() {
if len(os.Args) <= 1 {
fmt.Println("usage:remove-empty-dir dir")
return
}
dir := os.Args[1]
emptyDir := make(chan string, 100)
var wg sync.WaitGroup
wg.Add(1)
go func() {
defer wg.Done()
for dir := range emptyDir {
err := os.Remove(dir)
if err != nil {
fmt.Printf("remove-empty-dir %s failed:%s\n", dir, err)
continue
}
fmt.Printf("remove-empty-dir %s\n", dir)
}
}()
findEmptyDir(dir, emptyDir)
close(emptyDir)
wg.Wait()
}