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main.go
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main.go
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// Copyright 2016 [email protected]
//
// Licensed under the Apache License, Version 2.0 (the "License"): you may
// not use this file except in compliance with the License. You may obtain
// a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations
// under the License.
/*
_ooOoo_
o8888888o
88" . "88
(| -_- |)
O\ = /O
____/`---'\____
.' \\| |// `.
/ \\||| : |||// \
/ _||||| -:- |||||- \
| | \\\ - /// | |
| \_| ''\---/'' | |
\ .-\__ `-` ___/-. /
___`. .' /--.--\ `. . __
."" '< `.___\_<|>_/___.' >'"".
| | : `- \`.;`\ _ /`;.`/ - ` : | |
\ \ `-. \_ __\ /__ _/ .-` / /
======`-.____`-.___\_____/___.-`____.-'======
`=---='
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
佛祖保佑 永无BUG
*/
package main
import (
"fmt"
"github.com/Sirupsen/logrus"
"gopkg.in/alecthomas/kingpin.v2"
"os"
"time"
"sync"
"runtime"
)
const (
VERSION = "0.0.3"
)
var (
debug = kingpin.Flag("debug", "print debug log").Short('d').Default("false").Bool()
version = kingpin.Flag("version", "show version of dirwalker").Short('v').Default("false").Bool()
workPath = kingpin.Flag("work", "target path, default is current directory").Short('w').String()
ignorePaths = kingpin.Flag("ignore", "ignore paths, default is nil").Short('i').Strings()
outFile = kingpin.Flag("out", "out file path").Short('o').Default("./files.out").String()
solution = kingpin.Flag("solution", "there has 2 solutions for this tool, you can use s1 or s2 to choose which solution is using, s1 is sample, and s2 is using channel, default is s1").Short('s').Default("s1").String()
)
func main() {
runtime.GOMAXPROCS(runtime.NumCPU())
kingpin.Parse()
if *debug {
logrus.SetLevel(logrus.DebugLevel)
}
if *version {
fmt.Println(VERSION)
os.Exit(0)
}
beginTime := time.Now()
logrus.Infof("begin time: %v", beginTime)
switch *solution {
case "s1":
infos, err := ReadDir(*workPath, *ignorePaths)
if err != nil {
logrus.Fatalf("read dir return error: %v", err)
}
if err := WriteFileInfos(infos, *outFile); err != nil {
logrus.Fatalf("write file infos return error: %v", err)
}
case "s2":
wg := sync.WaitGroup{}
writeChan := make(chan *FileInfo, 1000)
go func() {
wg.Add(1)
if err := WriteFileFromReader(writeChan, *outFile); err != nil {
logrus.Fatalf("write file infos return error: %v", err)
}
wg.Done()
}()
if err := ReadDir2Writer(*workPath, *ignorePaths, writeChan); err != nil {
logrus.Fatalf("read dir return error: %v", err)
}
wg.Wait()
}
logrus.Infof("using solution[%v] cost time: %v", *solution, time.Since(beginTime))
}