递归遍历当前目录，删除指定文件

rm-target.go

package main

import (
	"path/filepath"
	"os"
	"fmt"
)

func main()  {
	dir, err := filepath.Abs(filepath.Dir(os.Args[0]))
	if nil != err {
		fmt.Println(err)
		return
	}

	fmt.Printf("working dir: %s\n", dir)
	target := "target"
	if len(os.Args) > 1 {
		target = os.Args[1]
	}
	fmt.Printf("recursively delete: %s\n", target)

	fileList, err := traverseFile(dir, target)
	if nil != err {
		fmt.Println(err)
		return
	}

	succ, failed := delAll(fileList)

	fmt.Printf("success = %d, failed = %d\n", succ, failed)
}

func traverseFile(dir string, target string) ([]string, error) {
	fileList := make([]string, 0, 30)
	err := filepath.Walk(dir, func(path string, info os.FileInfo, err error) error {
		if info == nil {
			return err
		}

		if info.Name() == target {
			fileList = append(fileList, path)
		}

		return nil
	})

	return fileList, err
}

func delAll(fileList []string) (int, int) {
	if len(fileList) == 0 {
		return 0, 0
	}

	succ := 0
	failed := 0
	for _, f := range fileList {
		err := os.RemoveAll(f)
		if nil != err {
			failed++
		} else {
			succ++
			fmt.Println("deleted: " + f)
		}
	}

	return succ, failed
}