Fix calculation of relative path for symlink on docker save
Relative paths are now calculated from a base path rather than from the file path, which gets treated like a directory. Symlinks will now properly point to the file as "../<layer dir>/layer.tar" rather the incorrect "../../<layer dir>/layer.tar". Fixes #24951 Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
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@ -307,7 +307,7 @@ func (s *saveSession) saveLayer(id layer.ChainID, legacyImg image.V1Image, creat
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defer layer.ReleaseAndLog(s.ls, l)
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if oldPath, exists := s.diffIDPaths[l.DiffID()]; exists {
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relPath, err := filepath.Rel(layerPath, oldPath)
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relPath, err := filepath.Rel(outDir, oldPath)
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if err != nil {
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return distribution.Descriptor{}, err
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}
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