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Report load progress on compressed layer size

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When calling docker load on an image tar containing a compressed layer,
apply NewProgressReader to the compressed layer (whose size is known), not
the uncompressed stream. This fixes progress reporting to the client in
this case.

Signed-off-by: John Starks <jostarks@microsoft.com>
This commit is contained in:
John Starks 2016-06-24 15:15:59 -07:00
parent e8ec19bd87
commit 5fd8edec1c
1 changed files with 11 additions and 14 deletions
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25
image/tarexport/load.go
View file

@ -170,28 +170,25 @@ func (l *tarexporter) loadLayer(filename string, rootFS image.RootFS, id string,
}
defer rawTar.Close()
inflatedLayerData, err := archive.DecompressStream(rawTar)
if err != nil {
return nil, err
}
defer inflatedLayerData.Close()
var r io.Reader
if progressOutput != nil {
fileInfo, err := os.Stat(filename)
fileInfo, err := rawTar.Stat()
if err != nil {
logrus.Debugf("Error statting file: %v", err)
return nil, err
}
progressReader := progress.NewProgressReader(inflatedLayerData, progressOutput, fileInfo.Size(), stringid.TruncateID(id), "Loading layer")
if ds, ok := l.ls.(layer.DescribableStore); ok {
return ds.RegisterWithDescriptor(progressReader, rootFS.ChainID(), foreignSrc)
}
return l.ls.Register(progressReader, rootFS.ChainID())
r = progress.NewProgressReader(rawTar, progressOutput, fileInfo.Size(), stringid.TruncateID(id), "Loading layer")
} else {
r = rawTar
}
inflatedLayerData, err := archive.DecompressStream(r)
if err != nil {
return nil, err
}
defer inflatedLayerData.Close()
if ds, ok := l.ls.(layer.DescribableStore); ok {
return ds.RegisterWithDescriptor(inflatedLayerData, rootFS.ChainID(), foreignSrc)
}