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more tools
This commit is contained in:
chai2010
parent
4dd801ed17
commit
d4898e6b03
102
tools/cpdir.go
Normal file
102
tools/cpdir.go
Normal file
@ -0,0 +1,102 @@
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// 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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44
tools/lookpath.go
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44
tools/lookpath.go
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@ -0,0 +1,44 @@
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// Copyright 2014 <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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// Lookpath is a simple which.
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package main
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import (
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"fmt"
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"os"
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"os/exec"
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"strings"
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)
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func main() {
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if len(os.Args) < 2 {
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fmt.Printf(`Usage: lookpath COMMAND [...]
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Write the full path of COMMAND(s) to standard output.
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Report bugs to <chaishushan@gmail.com>.
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`)
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os.Exit(0)
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}
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for i := 1; i < len(os.Args); i++ {
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path, err := exec.LookPath(os.Args[i])
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if err != nil {
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fmt.Printf("lookpath: no %s in (%v)\n", os.Args[i], GetEnv("PATH"))
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os.Exit(0)
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}
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fmt.Println(path)
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}
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}
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func GetEnv(key string) string {
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key = strings.ToUpper(key) + "="
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for _, env := range os.Environ() {
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if strings.HasPrefix(strings.ToUpper(env), key) {
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return env[len(key):]
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}
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}
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return ""
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}
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97
tools/lsdir.go
Normal file
97
tools/lsdir.go
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@ -0,0 +1,97 @@
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// 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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// List files, support file/header regexp.
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//
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// Example:
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// lsdir dir
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// lsdir dir "\.go$"
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// lsdir dir "\.go$" "chaishushan"
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// lsdir dir "\.tiff?|jpg|jpeg$"
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//
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// Help:
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// lsdir -h
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//
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package main
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import (
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"fmt"
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"io/ioutil"
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"log"
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"os"
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"path/filepath"
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"regexp"
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)
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const usage = `
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Usage: lsdir dir [nameFilter [dataFilter]]
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lsdir -h
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Example:
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lsdir dir
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lsdir dir "\.go$"
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lsdir dir "\.go$" "chaishushan"
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lsdir dir "\.tiff?|jpg|jpeg$"
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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) < 2 || os.Args[1] == "-h" {
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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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dir, nameFilter, dataFilter := os.Args[1], ".*", ""
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if len(os.Args) > 2 {
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nameFilter = os.Args[2]
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}
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if len(os.Args) > 3 {
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dataFilter = os.Args[3]
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}
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total := 0
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filepath.Walk(dir, func(path string, info os.FileInfo, err error) error {
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if err != nil {
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log.Fatal("filepath.Walk: ", err)
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return err
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}
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if info.IsDir() {
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return nil
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}
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relpath, err := filepath.Rel(dir, path)
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if err != nil {
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log.Fatal("filepath.Rel: ", err)
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return err
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}
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mathed, err := regexp.MatchString(nameFilter, relpath)
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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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if dataFilter != "" {
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data, err := ioutil.ReadFile(path)
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if err != nil {
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fmt.Printf("ioutil.ReadFile: %s\n", path)
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log.Fatal("ioutil.ReadFile: ", err)
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}
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mathed, err := regexp.MatchString(dataFilter, string(data))
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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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fmt.Printf("%s\n", relpath)
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total++
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}
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} else {
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fmt.Printf("%s\n", relpath)
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total++
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}
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}
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return nil
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})
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fmt.Printf("total %d\n", total)
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}
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121
tools/md5.go
Normal file
121
tools/md5.go
Normal file
@ -0,0 +1,121 @@
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// 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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// Cacl dir or file MD5Sum, support regexp.
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//
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// Example:
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// md5 file
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// md5 dir "\.go$"
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// md5 dir "\.tiff?$"
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// md5 dir "\.tiff?|jpg|jpeg$"
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//
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// Help:
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// cpdir -h
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//
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package main
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import (
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"crypto/md5"
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"fmt"
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"io/ioutil"
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"log"
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"os"
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"path/filepath"
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"regexp"
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"sort"
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)
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const usage = `
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Usage: md5 [dir|file [filter]]
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md5 -h
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Example:
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md5 file
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md5 dir "\.go$"
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md5 dir "\.go$"
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md5 dir "\.tiff?$"
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md5 dir "\.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) < 2 {
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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) > 2 {
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filter = os.Args[2]
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}
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if name := os.Args[1]; IsDir(name) {
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m, err := MD5Dir(name, filter)
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if err != nil {
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log.Fatalf("%s: %v", name, err)
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}
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var paths []string
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for path := range m {
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paths = append(paths, path)
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}
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sort.Strings(paths)
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for _, path := range paths {
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fmt.Printf("%x *%s\n", m[path], path)
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}
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} else {
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sum, err := MD5File(name)
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if err != nil {
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log.Fatalf("%s: %v", name, err)
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}
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fmt.Printf("%x *%s\n", sum, name)
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}
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}
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func IsDir(name string) bool {
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fi, err := os.Lstat(name)
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if err != nil {
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log.Fatal(err)
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}
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return fi.IsDir()
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}
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func MD5Dir(root string, filter string) (map[string][md5.Size]byte, error) {
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m := make(map[string][md5.Size]byte)
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err := filepath.Walk(root, func(path string, info os.FileInfo, err error) error {
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if err != nil {
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return err
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}
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if info.IsDir() {
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return nil
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}
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mathed, err := regexp.MatchString(filter, path)
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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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data, err := ioutil.ReadFile(path)
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if err != nil {
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return err
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}
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m[path] = md5.Sum(data)
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}
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return nil
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})
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if err != nil {
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return nil, err
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}
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return m, nil
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}
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func MD5File(filename string) (sum [md5.Size]byte, err error) {
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data, err := ioutil.ReadFile(filename)
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if err != nil {
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return
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}
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sum = md5.Sum(data)
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return
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}
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