132 lines
2.6 KiB
Go
132 lines
2.6 KiB
Go
package utils
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import (
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"archive/zip"
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"fmt"
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"io"
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"io/fs"
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"os"
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"path/filepath"
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"strings"
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)
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// Unzip 解压
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func Unzip(zipFile, destDir string) ([]string, error) {
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zipReader, err := zip.OpenReader(zipFile)
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paths := []string{}
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if err != nil {
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return []string{}, err
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}
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defer zipReader.Close()
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for _, f := range zipReader.File {
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if strings.Contains(f.Name, "..") {
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return []string{}, fmt.Errorf("%s 文件名不合法", f.Name)
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}
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// nolint
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fpath := filepath.Join(destDir, f.Name)
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paths = append(paths, fpath)
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if f.FileInfo().IsDir() {
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err = os.MkdirAll(fpath, os.ModePerm)
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if err != nil {
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return nil, err
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}
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} else {
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err = os.MkdirAll(filepath.Dir(fpath), os.ModePerm)
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if err != nil {
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return []string{}, err
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}
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zipFunc := func(fpath string) error {
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var inFile io.ReadCloser
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var outFile *os.File
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inFile, err = f.Open()
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if err != nil {
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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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return err
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}
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defer outFile.Close()
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// nolint
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_, err = io.Copy(outFile, inFile)
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if err != nil {
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return err
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}
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return nil
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}
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err = zipFunc(fpath)
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if err != nil {
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return []string{}, err
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}
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}
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}
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return paths, nil
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}
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func ZipFiles(filename string, files []string, oldForm, newForm string) error {
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newZipFile, err := os.Create(filename)
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if err != nil {
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return err
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}
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defer func() {
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_ = newZipFile.Close()
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}()
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zipWriter := zip.NewWriter(newZipFile)
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defer func() {
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_ = zipWriter.Close()
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}()
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// 把files添加到zip中
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for _, file := range files {
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err = func(file string) error {
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var zipFile *os.File
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zipFile, err = os.Open(file)
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if err != nil {
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return err
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}
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defer zipFile.Close()
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// 获取file的基础信息
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var info fs.FileInfo
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info, err = zipFile.Stat()
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if err != nil {
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return err
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}
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var header *zip.FileHeader
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header, err = zip.FileInfoHeader(info)
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if err != nil {
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return err
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}
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// 使用上面的FileInfoHeader() 就可以把文件保存的路径替换成我们自己想要的了，如下面
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header.Name = strings.Replace(file, oldForm, newForm, -1)
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// 优化压缩
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// 更多参考see http://golang.org/pkg/archive/zip/#pkg-constants
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header.Method = zip.Deflate
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var writer io.Writer
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writer, err = zipWriter.CreateHeader(header)
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if err != nil {
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return err
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}
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if _, err = io.Copy(writer, zipFile); err != nil {
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return err
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}
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return nil
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}(file)
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if err != nil {
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return err
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}
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}
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return nil
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}
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