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)
This commit is contained in:
Derek McGowan 2016-07-25 13:28:10 -07:00
parent e306466569
commit 5487881e12

View file

@ -307,7 +307,7 @@ func (s *saveSession) saveLayer(id layer.ChainID, legacyImg image.V1Image, creat
defer layer.ReleaseAndLog(s.ls, l)
if oldPath, exists := s.diffIDPaths[l.DiffID()]; exists {
relPath, err := filepath.Rel(layerPath, oldPath)
relPath, err := filepath.Rel(outDir, oldPath)
if err != nil {
return distribution.Descriptor{}, err
}