// importLayer adds a new layer to the tag and graph store based on the given data.
func (d *Driver) importLayer(id string, layerData archive.Reader, parentLayerPaths []string) (size int64, err error) {
var w hcsshim.LayerWriter
w, err = hcsshim.NewLayerWriter(d.info, id, parentLayerPaths)
if err != nil {
return
}
size, err = writeLayerFromTar(layerData, w)
if err != nil {
w.Close()
return
}
err = w.Close()
if err != nil {
return
}
return
}
// importLayer adds a new layer to the tag and graph store based on the given data.
func (d *Driver) importLayer(id string, layerData archive.Reader, parentLayerPaths []string) (size int64, err error) {
if hcsshim.IsTP4() {
// Import from TP4 format to maintain compatibility with existing images.
var tempFolder string
tempFolder, err = ioutil.TempDir("", "hcs")
if err != nil {
return
}
defer os.RemoveAll(tempFolder)
if size, err = chrootarchive.ApplyLayer(tempFolder, layerData); err != nil {
return
}
if err = hcsshim.ImportLayer(d.info, id, tempFolder, parentLayerPaths); err != nil {
return
}
return
}
var w hcsshim.LayerWriter
w, err = hcsshim.NewLayerWriter(d.info, id, parentLayerPaths)
if err != nil {
return
}
size, err = writeLayerFromTar(layerData, w)
if err != nil {
w.Close()
return
}
err = w.Close()
if err != nil {
return
}
return
}