go实现本地文件搜索引擎

// filelist.go
package main

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

var (
   ostype = "windows" // 获取系统类型
)

var listfile []string //获取文件列表

func Listfunc(path string, f os.FileInfo, err error) error {
   var strRet string
   strRet = "D:\\programming"
   //ostype := os.Getenv("GOOS") // windows, linux

   if ostype == "windows" {
      strRet += "\\"
   } else if ostype == "linux" {
      strRet += "/"
   }

   if f == nil {
      return err
   }
   if f.IsDir() {
      return nil
   }
   strRet += path //+ "\r\n"

   //用strings.HasSuffix(src, suffix)//判断src中是否包含 suffix结尾
   ok := strings.HasSuffix(strRet, ".go")
   if ok {

      listfile = append(listfile, strRet) //将目录push到listfile []string中
   }
   //fmt.Println(ostype) // print ostype
   fmt.Println(strRet) //list the file

   return nil
}

func getFileList(path string) string {
   //var strRet string
   err := filepath.Walk(path, Listfunc) //

   if err != nil {
      fmt.Printf("filepath.Walk() returned %v\n", err)
   }

   return " "
}

func ListFileFunc(p []string) {
   for index, value := range p {
      fmt.Println("Index = ", index, "Value = ", value)
   }
}

func main() {
   //flag.Parse()
   //root := flag.Arg(0)
   //fmt.Println()
   //var listpath string
   //fmt.Scanf("%s", &listpath)
   //getFileList(listpath)
   //ListFileFunc(listfile)
   filepath.Walk("d:\\programming", func(path string, info os.FileInfo, err error) error {
      if strings.HasSuffix(path,".cpp") {
         fmt.Println(path)
      }
      return nil;
   });
   //getFileList(root)

}