[TOC] ## tar ## 壓縮 tar.gz ``` src:="parse" dst:=fmt.Sprintf("%s.tar.gz",src) dstFile, err := os.Create(dst) if err != nil { log.Fatal(err) } defer dstFile.Close() gzipWrite := gzip.NewWriter(dstFile) defer gzipWrite.Close() handle := tar.NewWriter(gzipWrite) defer handle.Close() err = filepath.Walk("parser", func(path string, info os.FileInfo, err error) error { if err != nil { return err } header, err := tar.FileInfoHeader(info, path) if err != nil { return err } // 保留層級關系 header.Name=strings.TrimPrefix(path,string(filepath.Separator)) if err = handle.WriteHeader(header);err != nil { return err } if !info.Mode().IsRegular() { return nil } openFile, err := os.Open(path) if err != nil { return err } _, err = io.Copy(handle, openFile) if err != nil { return err } return nil }) ``` ## 解壓 tar.gz ``` dstDir := "./" tarFile, err := os.Open("parse.tar.gz") if err != nil { log.Fatal(err) } defer tarFile.Close() gzipReader, err := gzip.NewReader(tarFile) if err != nil { log.Fatal(err) } tarReader := tar.NewReader(gzipReader) for { head, err := tarReader.Next() if err != nil { if errors.Is(err, io.EOF) { os.Exit(0) } else { log.Fatal(err) os.Exit(1) } } dstFileDir := filepath.Join(dstDir, head.Name) switch head.Typeflag { case tar.TypeDir: if err := os.MkdirAll(dstFileDir, 0755); err != nil { log.Fatal(err) } case tar.TypeReg: openFile, err := os.Create(dstFileDir) if err != nil { log.Fatal(err) } _, err = io.Copy(openFile, tarReader) if err != nil { log.Fatal(err) } openFile.Close() } } ```