mirror of
https://github.com/woodpecker-ci/woodpecker.git
synced 2026-04-15 01:41:56 +00:00
75 lines
1.5 KiB
Go
75 lines
1.5 KiB
Go
// Copyright 2024 Woodpecker Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package update
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import (
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"archive/tar"
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"compress/gzip"
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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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)
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const tarDirectoryMode fs.FileMode = 0x755
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func UnTar(dst string, r io.Reader) error {
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gzr, err := gzip.NewReader(r)
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if err != nil {
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return err
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}
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defer gzr.Close()
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tr := tar.NewReader(gzr)
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for {
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header, err := tr.Next()
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switch {
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case err == io.EOF:
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return nil
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case err != nil:
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return err
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case header == nil:
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continue
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}
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target := filepath.Join(dst, header.Name)
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switch header.Typeflag {
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case tar.TypeDir:
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if _, err := os.Stat(target); err != nil {
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if err := os.MkdirAll(target, tarDirectoryMode); err != nil {
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return err
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}
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}
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case tar.TypeReg:
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f, err := os.OpenFile(target, os.O_CREATE|os.O_RDWR, os.FileMode(header.Mode))
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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(f, tr); err != nil {
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return err
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}
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f.Close()
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}
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}
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}
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