mirror of
https://github.com/gopl-zh/gopl-zh.github.com.git
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103 lines
2.0 KiB
Go
103 lines
2.0 KiB
Go
// Copyright 2013 <chaishushan{AT}gmail.com>. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build ingore
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//
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// Copy dir, support regexp.
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//
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// Example:
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// cpdir src dst
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// cpdir src dst "\.go$"
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// cpdir src dst "\.tiff?$"
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// cpdir src dst "\.tiff?|jpg|jpeg$"
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//
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// Help:
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// cpdir -h
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//
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package main
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import (
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"fmt"
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"io"
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"io/ioutil"
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"log"
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"os"
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"path/filepath"
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"regexp"
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)
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const usage = `
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Usage: cpdir src dst [filter]
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cpdir -h
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Example:
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cpdir src dst
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cpdir src dst "\.go$"
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cpdir src dst "\.tiff?$"
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cpdir src dst "\.tiff?|jpg|jpeg$"
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Report bugs to <chaishushan{AT}gmail.com>.
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`
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func main() {
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if len(os.Args) < 3 {
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fmt.Fprintln(os.Stderr, usage[1:len(usage)-1])
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os.Exit(0)
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}
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filter := ".*"
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if len(os.Args) > 3 {
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filter = os.Args[3]
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}
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total := cpDir(os.Args[2], os.Args[1], filter)
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fmt.Printf("total %d\n", total)
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}
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func cpDir(dst, src, filter string) (total int) {
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entryList, err := ioutil.ReadDir(src)
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if err != nil && !os.IsExist(err) {
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log.Fatal("cpDir: ", err)
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}
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for _, entry := range entryList {
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if entry.IsDir() {
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cpDir(dst+"/"+entry.Name(), src+"/"+entry.Name(), filter)
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} else {
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mathed, err := regexp.MatchString(filter, entry.Name())
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if err != nil {
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log.Fatal("regexp.MatchString: ", err)
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}
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if mathed {
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srcFname := filepath.Clean(src + "/" + entry.Name())
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dstFname := filepath.Clean(dst + "/" + entry.Name())
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fmt.Printf("copy %s\n", srcFname)
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cpFile(dstFname, srcFname)
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total++
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}
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}
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}
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return
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}
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func cpFile(dst, src string) {
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err := os.MkdirAll(filepath.Dir(dst), 0666)
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if err != nil && !os.IsExist(err) {
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log.Fatal("cpFile: ", err)
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}
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fsrc, err := os.Open(src)
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if err != nil {
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log.Fatal("cpFile: ", err)
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}
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defer fsrc.Close()
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fdst, err := os.Create(dst)
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if err != nil {
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log.Fatal("cpFile: ", err)
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}
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defer fdst.Close()
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if _, err = io.Copy(fdst, fsrc); err != nil {
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log.Fatal("cpFile: ", err)
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}
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}
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