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Only get rootfs when we need to calculate the image size

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Docker-DCO-1.0-Signed-off-by: Michael Crosby <crosby.michael@gmail.com> (github: crosbymichael)
This commit is contained in:
Michael Crosby
2014-01-07 11:34:19 -08:00
parent b942f24ba8
commit fa14a1b983
1 changed files with 5 additions and 5 deletions
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graph.go
+5 -5
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@@ -87,17 +87,17 @@ func (graph *Graph) Get(name string) (*Image, error) {
if err != nil {
return nil, err
}
// Check that the filesystem layer exists
rootfs, err := graph.driver.Get(img.ID)
if err != nil {
return nil, fmt.Errorf("Driver %s failed to get image rootfs %s: %s", graph.driver, img.ID, err)
}
if img.ID != id {
return nil, fmt.Errorf("Image stored at '%s' has wrong id '%s'", id, img.ID)
}
img.graph = graph
if img.Size < 0 {
rootfs, err := graph.driver.Get(img.ID)
if err != nil {
return nil, fmt.Errorf("Driver %s failed to get image rootfs %s: %s", graph.driver, img.ID, err)
}
var size int64
if img.Parent == "" {
if size, err = utils.TreeSize(rootfs); err != nil {