simple http file server with golang

simpleHttpFileServer.go

package main

import (
        "flag"
        "fmt"
        "log"
        "net/http"
        "path/filepath"
)

func main() {
        port := flag.Int("port", 8080, "port to listen")
        dir := flag.String("dir", "./", "file dir to serve")
        pre := flag.String("pre", "/", "http strip prefix")
        flag.Parse()

        serveDir, err := filepath.Abs(*dir)
        if err != nil {
                log.Fatal(err)
        }
        addr := fmt.Sprintf(":%d", *port)
        fmt.Printf("Serving [ %s ] on %s ,with prefix %s\n", serveDir, addr, *pre)
        // Simple static webserver:
        http.Handle(*pre, http.StripPrefix(*pre, http.FileServer(http.Dir(serveDir))))
        log.Fatal(http.ListenAndServe(addr, nil))
}


//Mac 下编译 Linux 和 Windows 64位可执行程序
//
//CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build simpleHttpFileServer.go
//CGO_ENABLED=0 GOOS=windows GOARCH=amd64 go build simpleHttpFileServer.go