6825ac1c62
Move graph related functions in image to graph package. Consolidating graph functionality is the first step in refactoring graph into an image store model. Subsequent refactors will involve breaking up graph into multiple types with a strongly defined interface. Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan) Upstream-commit: 2b58b677a54950bc78c13760ef79fe6284154847 Component: engine
69 lines
1.7 KiB
Go
69 lines
1.7 KiB
Go
package graph
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import (
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"fmt"
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"io"
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"github.com/Sirupsen/logrus"
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"github.com/docker/docker/api/types"
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)
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func (s *TagStore) LookupRaw(name string) ([]byte, error) {
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image, err := s.LookupImage(name)
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if err != nil || image == nil {
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return nil, fmt.Errorf("No such image %s", name)
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}
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imageInspectRaw, err := s.graph.RawJSON(image.ID)
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if err != nil {
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return nil, err
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}
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return imageInspectRaw, nil
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}
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// Lookup return an image encoded in JSON
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func (s *TagStore) Lookup(name string) (*types.ImageInspect, error) {
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image, err := s.LookupImage(name)
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if err != nil || image == nil {
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return nil, fmt.Errorf("No such image: %s", name)
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}
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imageInspect := &types.ImageInspect{
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Id: image.ID,
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Parent: image.Parent,
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Comment: image.Comment,
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Created: image.Created,
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Container: image.Container,
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ContainerConfig: &image.ContainerConfig,
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DockerVersion: image.DockerVersion,
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Author: image.Author,
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Config: image.Config,
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Architecture: image.Architecture,
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Os: image.OS,
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Size: image.Size,
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VirtualSize: s.graph.GetParentsSize(image, 0) + image.Size,
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}
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return imageInspect, nil
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}
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// ImageTarLayer return the tarLayer of the image
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func (s *TagStore) ImageTarLayer(name string, dest io.Writer) error {
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if image, err := s.LookupImage(name); err == nil && image != nil {
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fs, err := s.graph.TarLayer(image)
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if err != nil {
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return err
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}
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defer fs.Close()
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written, err := io.Copy(dest, fs)
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if err != nil {
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return err
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}
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logrus.Debugf("rendered layer for %s of [%d] size", image.ID, written)
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return nil
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}
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return fmt.Errorf("No such image: %s", name)
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}
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