mirror of
https://github.com/gopl-zh/gopl-zh.github.com.git
synced 2024-11-04 13:33:41 +00:00
103 lines
2.0 KiB
Go
103 lines
2.0 KiB
Go
// Copyright 2013 <chaishushan{AT}gmail.com>. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
// +build ingore
|
|
|
|
//
|
|
// Copy dir, support regexp.
|
|
//
|
|
// Example:
|
|
// cpdir src dst
|
|
// cpdir src dst "\.go$"
|
|
// cpdir src dst "\.tiff?$"
|
|
// cpdir src dst "\.tiff?|jpg|jpeg$"
|
|
//
|
|
// Help:
|
|
// cpdir -h
|
|
//
|
|
package main
|
|
|
|
import (
|
|
"fmt"
|
|
"io"
|
|
"io/ioutil"
|
|
"log"
|
|
"os"
|
|
"path/filepath"
|
|
"regexp"
|
|
)
|
|
|
|
const usage = `
|
|
Usage: cpdir src dst [filter]
|
|
cpdir -h
|
|
|
|
Example:
|
|
cpdir src dst
|
|
cpdir src dst "\.go$"
|
|
cpdir src dst "\.tiff?$"
|
|
cpdir src dst "\.tiff?|jpg|jpeg$"
|
|
|
|
Report bugs to <chaishushan{AT}gmail.com>.
|
|
`
|
|
|
|
func main() {
|
|
if len(os.Args) < 3 {
|
|
fmt.Fprintln(os.Stderr, usage[1:len(usage)-1])
|
|
os.Exit(0)
|
|
}
|
|
filter := ".*"
|
|
if len(os.Args) > 3 {
|
|
filter = os.Args[3]
|
|
}
|
|
total := cpDir(os.Args[2], os.Args[1], filter)
|
|
fmt.Printf("total %d\n", total)
|
|
}
|
|
|
|
func cpDir(dst, src, filter string) (total int) {
|
|
entryList, err := ioutil.ReadDir(src)
|
|
if err != nil && !os.IsExist(err) {
|
|
log.Fatal("cpDir: ", err)
|
|
}
|
|
for _, entry := range entryList {
|
|
if entry.IsDir() {
|
|
cpDir(dst+"/"+entry.Name(), src+"/"+entry.Name(), filter)
|
|
} else {
|
|
mathed, err := regexp.MatchString(filter, entry.Name())
|
|
if err != nil {
|
|
log.Fatal("regexp.MatchString: ", err)
|
|
}
|
|
if mathed {
|
|
srcFname := filepath.Clean(src + "/" + entry.Name())
|
|
dstFname := filepath.Clean(dst + "/" + entry.Name())
|
|
fmt.Printf("copy %s\n", srcFname)
|
|
|
|
cpFile(dstFname, srcFname)
|
|
total++
|
|
}
|
|
}
|
|
}
|
|
return
|
|
}
|
|
|
|
func cpFile(dst, src string) {
|
|
err := os.MkdirAll(filepath.Dir(dst), 0666)
|
|
if err != nil && !os.IsExist(err) {
|
|
log.Fatal("cpFile: ", err)
|
|
}
|
|
fsrc, err := os.Open(src)
|
|
if err != nil {
|
|
log.Fatal("cpFile: ", err)
|
|
}
|
|
defer fsrc.Close()
|
|
|
|
fdst, err := os.Create(dst)
|
|
if err != nil {
|
|
log.Fatal("cpFile: ", err)
|
|
}
|
|
defer fdst.Close()
|
|
if _, err = io.Copy(fdst, fsrc); err != nil {
|
|
log.Fatal("cpFile: ", err)
|
|
}
|
|
}
|