0f51aa874d
When unpacking a TAR archive, containerd preserves file's owner: https://github.com/containerd/containerd/blob/main/archive/tar.go#L384 In some cases this behavior is not desired. In current implementation we avoid `Lchown` on Windows. Another case when this should be skipped is when using native snapshotter on darwin and running as non-root user. This PR extracts a generic option - `WithNoSameOwner` (same as `tar --no-same-owner`) to skip `Lchown` when its not required. Signed-off-by: Maksym Pavlenko <pavlenko.maksym@gmail.com>
59 lines
1.8 KiB
Go
59 lines
1.8 KiB
Go
/*
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Copyright The containerd Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package archive
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import (
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"bytes"
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"context"
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"os"
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"path/filepath"
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"strings"
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"testing"
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"github.com/containerd/containerd/archive/compression"
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"github.com/containerd/containerd/pkg/testutil"
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)
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// TestPrefixHeaderReadable tests that files that could be created with the
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// version of this package that was built with <=go17 are still readable.
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func TestPrefixHeaderReadable(t *testing.T) {
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testutil.RequiresRoot(t)
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// https://gist.github.com/stevvooe/e2a790ad4e97425896206c0816e1a882#file-out-go
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var testFile = []byte("\x1f\x8b\x08\x08\x44\x21\x68\x59\x00\x03\x74\x2e\x74\x61\x72\x00\x4b\xcb\xcf\x67\xa0\x35\x30\x80\x00\x86\x06\x10\x47\x01\xc1\x37\x40\x00\x54\xb6\xb1\xa1\xa9\x99\x09\x48\x25\x1d\x40\x69\x71\x49\x62\x91\x02\xe5\x76\xa1\x79\x84\x21\x91\xd6\x80\x72\xaf\x8f\x82\x51\x30\x0a\x46\x36\x00\x00\xf0\x1c\x1e\x95\x00\x06\x00\x00")
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tmpDir := t.TempDir()
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r, err := compression.DecompressStream(bytes.NewReader(testFile))
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if err != nil {
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t.Fatal(err)
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}
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defer r.Close()
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_, err = Apply(context.Background(), tmpDir, r, WithNoSameOwner())
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if err != nil {
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t.Fatal(err)
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}
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baseName := "foo"
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pth := strings.Repeat("a", 100-len(baseName)) + "/" + baseName
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_, err = os.Lstat(filepath.Join(tmpDir, pth))
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if err != nil {
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t.Fatal(err)
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}
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}
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