增加 addlinks.go 脚本,用于添加链接

This commit is contained in:
chai2010 2016-01-05 13:55:18 +08:00
parent d4898e6b03
commit 3430ba7f24

122
addlinks.go Normal file
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@ -0,0 +1,122 @@
// Copyright 2015 <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
//
// 给特殊模式标定的单词增加链接.
//
// Example:
// addlinks
// addlinks dir "\.go$"
//
// Help:
// addlinks -h
//
package main
import (
"bytes"
"fmt"
"io/ioutil"
"log"
"os"
"path/filepath"
"regexp"
"unicode/utf8"
)
const MaxFileSize = 8 << 20 // 8MB
const usage = `
Usage: addlinks dir [nameFilter]
addlinks -h
Example:
addlinks
addlinks dir "\.go$"
Report bugs to <chaishushan{AT}gmail.com>.
`
func main() {
if len(os.Args) < 2 || os.Args[1] == "-h" {
fmt.Fprintln(os.Stderr, usage[1:len(usage)-1])
os.Exit(0)
}
dir, nameFilter := os.Args[1], ".*"
if len(os.Args) > 2 {
nameFilter = os.Args[2]
}
total := 0
filepath.Walk(dir, func(path string, info os.FileInfo, err error) error {
if err != nil {
log.Fatal("filepath.Walk: ", err)
return err
}
if info.IsDir() {
return nil
}
relpath, err := filepath.Rel(dir, path)
if err != nil {
log.Fatal("filepath.Rel: ", err)
return err
}
mathed, err := regexp.MatchString(nameFilter, relpath)
if err != nil {
log.Fatal("regexp.MatchString: ", err)
}
if mathed {
if changed := convertFile(path); changed {
fmt.Printf("%s\n", relpath)
total++
}
}
return nil
})
fmt.Printf("total %d\n", total)
}
func convertFile(path string) (changed bool) {
abspath, err := filepath.Abs(path)
if err != nil {
log.Fatal("convertFile: filepath.Abs:", err)
}
fi, err := os.Lstat(abspath)
if err != nil {
log.Fatal("convertFile: os.Lstat:", err)
}
if fi.Size() > MaxFileSize {
return false
}
oldData, err := ioutil.ReadFile(abspath)
if err != nil {
log.Fatal("convertFile: ioutil.ReadFile:", err)
}
if !utf8.Valid(oldData) {
return false
}
newData := oldData
for k, v := range _LinksTable {
newData = bytes.Replace(oldData, []byte(k), []byte(v), -1)
}
if string(newData) == string(oldData) {
return false
}
err = ioutil.WriteFile(abspath, newData, 0666)
if err != nil {
log.Fatal("convertFile: ioutil.WriteFile:", err)
}
return true
}
var _LinksTable = map[string]string{
"[Alan A. A. Donovan]()": "[Alan A. A. Donovan](https://github.com/adonovan)",
}