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writer.go
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/
writer.go
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// Copyright 2016 zm@huantucorp.com
//
// 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 (
"errors"
"os"
"github.com/Sirupsen/logrus"
"fmt"
)
// if file existing, truncate it
// if error happened, stop
func WriteFileInfos(infos []*FileInfo, file string) error {
if infos == nil {
return errors.New("empty files")
}
f, err := os.Create(file)
if err != nil {
return err
}
defer f.Close()
f.WriteString("文件名,文件哈希,文件大小\n")
for _, info := range infos {
f.WriteString(fmt.Sprintf("%s\n", info))
}
return nil
}
func WriteFileFromReader(writeChan chan *FileInfo, file string) error {
f, err := os.Create(file)
if err != nil {
return err
}
defer f.Close()
f.WriteString("文件名,文件哈希,文件大小\n")
for {
info, ok := <- writeChan
logrus.Debugf("from chan: %v, ok: %v", info, ok)
if !ok {
break
}
f.WriteString(fmt.Sprintf("%s\n", info))
}
return nil
}