package main

import (
    "bufio"
    "crypto/md5"
    "fmt"
    "io"
    "os"

    "v.src.corp.qihoo.net/weblego/lib4go/convert"
)

func fileMdFir(filePath string) string {
    file, _ := os.Open(filePath)
    defer file.Close()
    h := md5.New()
    io.Copy(h, file)
    fileMd1 := convert.U2S(h.Sum(nil))
    return fileMd1
}

func fileMdSec(file string) string {
    f, _ := os.Open(file)
    defer f.Close()
    r := bufio.NewReader(f)
    h := md5.New()
    io.Copy(h, r)
    fileMd2 := convert.U2S(h.Sum(nil))
    return fileMd2
}

func main() {
    fileMd1 := fileMdFir("/tmp/conf/deploy.toml")
    fmt.Println(fileMd1)
    fileMd2 := fileMdSec("/tmp/conf/deploy.toml")
    fmt.Println(fileMd2)
}