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package main
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import (
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"archive/zip"
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"io"
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"os"
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"path/filepath"
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log "github.com/sirupsen/logrus"
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)
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// 桌面应用升级方案，桌面应用更新研发
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// https://blog.csdn.net/u012981972/article/details/109597211
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// 自动解压
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func Unzip(zipFile string, destDir string) error {
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defer func() {
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if r := recover(); r != nil {
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log.Error("Unzip:", r)
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}
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}()
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zipReader, err := zip.OpenReader(zipFile)
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if err != nil {
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log.Println("打开文件失败:" + err.Error())
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return err
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}
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//defer的使用规则:1.当defer被声明时，其参数就会被实时解析;2.defer执行顺序为先进后出;3. defer可以读取有名返回值
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defer zipReader.Close()
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for _, f := range zipReader.File {
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fpath := filepath.Join(destDir, f.Name)
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if f.FileInfo().IsDir() {
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os.MkdirAll(fpath, os.ModePerm)
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} else {
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if err = os.MkdirAll(filepath.Dir(fpath), os.ModePerm); err != nil {
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log.Println("创建文件夹失败:" + err.Error())
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return err
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}
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inFile, err := f.Open()
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if err != nil {
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log.Println("文件打开失败:" + err.Error())
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return err
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}
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defer inFile.Close()
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outFile, err := os.OpenFile(fpath, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, f.Mode())
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if err != nil {
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log.Println("复制错误:" + err.Error())
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return err
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}
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defer outFile.Close()
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_, err = io.Copy(outFile, inFile)
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if err != nil {
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log.Println("复制失败:" + err.Error())
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return err
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}
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}
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}
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return nil
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}
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func init() {
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defer func() {
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if r := recover(); r != nil {
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log.Error("init:", r)
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}
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}()
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logFile, err := os.OpenFile("log.log", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0644)
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if err != nil {
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return
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}
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log.SetOutput(logFile)
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// log.SetPrefix("[update]")
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}
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