/
archive.go
136 lines (116 loc) · 3.13 KB
/
archive.go
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// MIT License
// Copyright (c) 2023 ARMORTAL TECHNOLOGIES PTY LTD
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
package util
import (
"archive/tar"
"archive/zip"
"compress/gzip"
"fmt"
"io"
"os"
"path/filepath"
"strings"
)
func ExtractTarGz(src string, dst string) error {
// Open the file to create a reader.
f, err := os.Open(src)
if err != nil {
return err
}
// Create a new gzip reader.
r, err := gzip.NewReader(f)
if err != nil {
return err
}
defer r.Close()
t := tar.NewReader(r)
for {
header, err := t.Next()
// EOF means we are done.
if err != nil {
if err == io.EOF {
return nil
}
return err
}
switch header.Typeflag {
case tar.TypeDir:
if err := os.Mkdir(filepath.Join(dst, header.Name), 0700); err != nil {
return err
}
case tar.TypeReg:
out, err := os.Create(filepath.Join(dst, header.Name))
if err := out.Chmod(0700); err != nil {
return err
}
if err != nil {
return err
}
if _, err := io.Copy(out, t); err != nil {
return err
}
out.Close()
default:
return fmt.Errorf("unknown type %s", string(header.Typeflag))
}
}
}
func ExtractZip(src string, dst string) error {
// Create the reader
reader, err := zip.OpenReader(src)
if err != nil {
return err
}
defer reader.Close()
for _, f := range reader.File {
if err := extractZip(f, dst); err != nil {
return err
}
}
return nil
}
func extractZip(f *zip.File, dst string) error {
fp := filepath.Join(dst, f.Name)
if !strings.HasPrefix(fp, filepath.Clean(dst)+string(os.PathSeparator)) {
return fmt.Errorf("invalid file path: %s", fp)
}
// If this is a directory, we need to create it.
if f.FileInfo().IsDir() {
if err := os.MkdirAll(fp, os.ModePerm); err != nil {
return err
}
return nil
}
if err := os.MkdirAll(filepath.Dir(fp), os.ModePerm); err != nil {
return err
}
out, err := os.OpenFile(fp, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, f.Mode())
if err != nil {
return err
}
defer out.Close()
zippedFile, err := f.Open()
if err != nil {
return err
}
defer zippedFile.Close()
if _, err := io.Copy(out, zippedFile); err != nil {
return err
}
return nil
}