continue daemon refactor of Repositories()

 - use daemon member directly rather than through a function call
 - create GetImage method for use external to deamon

Signed-off-by: Morgan Bauer <mbauer@us.ibm.com>

api/server/router/local/image.go

@@ -425,7 +425,7 @@ func (s *router) postBuild(ctx context.Context, w http.ResponseWriter, r *http.R
 	}
 
 	if repoName != "" {
-		if err := s.daemon.Repositories().Tag(repoName, tag, string(imgID), true); err != nil {
+		if err := s.daemon.TagImage(repoName, tag, string(imgID), true); err != nil {
 			return errf(err)
 		}
 	}

daemon/daemon.go

@@ -1011,11 +1011,6 @@ func (daemon *Daemon) Graph() *graph.Graph {
 	return daemon.graph
 }
 
-// Repositories returns all repositories.
-func (daemon *Daemon) Repositories() *graph.TagStore {
-	return daemon.repositories
-}
-
 // TagImage creates a tag in the repository reponame, pointing to the image named
 // imageName. If force is true, an existing tag with the same name may be
 // overwritten.
@@ -1079,6 +1074,13 @@ func (daemon *Daemon) ImageHistory(name string) ([]*types.ImageHistory, error) {
 	return daemon.repositories.History(name)
 }
 
+// GetImage returns pointer to an Image struct corresponding to the given
+// name. The name can include an optional tag; otherwise the default tag will
+// be used.
+func (daemon *Daemon) GetImage(name string) (*image.Image, error) {
+	return daemon.repositories.LookupImage(name)
+}
+
 func (daemon *Daemon) config() *Config {
 	return daemon.configStore
 }

daemon/daemonbuilder/builder.go

@@ -39,7 +39,7 @@ var _ builder.Docker = Docker{}
 
 // LookupImage looks up a Docker image referenced by `name`.
 func (d Docker) LookupImage(name string) (*image.Image, error) {
-	return d.Daemon.Repositories().LookupImage(name)
+	return d.Daemon.GetImage(name)
 }
 
 // Pull tells Docker to pull image referenced by `name`.
@@ -69,11 +69,11 @@ func (d Docker) Pull(name string) (*image.Image, error) {
 		OutStream:  ioutils.NopWriteCloser(d.OutOld),
 	}
 
-	if err := d.Daemon.Repositories().Pull(remote, tag, imagePullConfig); err != nil {
+	if err := d.Daemon.PullImage(remote, tag, imagePullConfig); err != nil {
 		return nil, err
 	}
 
-	return d.Daemon.Repositories().LookupImage(name)
+	return d.Daemon.GetImage(name)
 }
 
 // Container looks up a Docker container referenced by `id`.

daemon/image_delete.go

@@ -53,7 +53,7 @@ import (
 func (daemon *Daemon) ImageDelete(imageRef string, force, prune bool) ([]types.ImageDelete, error) {
 	records := []types.ImageDelete{}
 
-	img, err := daemon.Repositories().LookupImage(imageRef)
+	img, err := daemon.repositories.LookupImage(imageRef)
 	if err != nil {
 		return nil, err
 	}
@@ -90,7 +90,7 @@ func (daemon *Daemon) ImageDelete(imageRef string, force, prune bool) ([]types.I
 		// repository reference to the image then we will want to
 		// remove that reference.
 		// FIXME: Is this the behavior we want?
-		repoRefs := daemon.Repositories().ByID()[img.ID]
+		repoRefs := daemon.repositories.ByID()[img.ID]
 		if len(repoRefs) == 1 {
 			parsedRef, err := daemon.removeImageRef(repoRefs[0])
 			if err != nil {
@@ -116,7 +116,7 @@ func isImageIDPrefix(imageID, possiblePrefix string) bool {
 // imageHasMultipleRepositoryReferences returns whether there are multiple
 // repository references to the given imageID.
 func (daemon *Daemon) imageHasMultipleRepositoryReferences(imageID string) bool {
-	return len(daemon.Repositories().ByID()[imageID]) > 1
+	return len(daemon.repositories.ByID()[imageID]) > 1
 }
 
 // getContainerUsingImage returns a container that was created using the given
@@ -145,7 +145,7 @@ func (daemon *Daemon) removeImageRef(repositoryRef string) (string, error) {
 	// Ignore the boolean value returned, as far as we're concerned, this
 	// is an idempotent operation and it's okay if the reference didn't
 	// exist in the first place.
-	_, err := daemon.Repositories().Delete(repository, ref)
+	_, err := daemon.repositories.Delete(repository, ref)
 
 	return utils.ImageReference(repository, ref), err
 }
@@ -156,7 +156,7 @@ func (daemon *Daemon) removeImageRef(repositoryRef string) (string, error) {
 // daemon's event service. An "Untagged" types.ImageDelete is added to the
 // given list of records.
 func (daemon *Daemon) removeAllReferencesToImageID(imgID string, records *[]types.ImageDelete) error {
-	imageRefs := daemon.Repositories().ByID()[imgID]
+	imageRefs := daemon.repositories.ByID()[imgID]
 
 	for _, imageRef := range imageRefs {
 		parsedRef, err := daemon.removeImageRef(imageRef)
@@ -308,7 +308,7 @@ func (daemon *Daemon) checkImageDeleteHardConflict(img *image.Image) *imageDelet
 
 func (daemon *Daemon) checkImageDeleteSoftConflict(img *image.Image) *imageDeleteConflict {
 	// Check if any repository tags/digest reference this image.
-	if daemon.Repositories().HasReferences(img) {
+	if daemon.repositories.HasReferences(img) {
 		return &imageDeleteConflict{
 			imgID:   img.ID,
 			message: "image is referenced in one or more repositories",
@@ -337,5 +337,5 @@ func (daemon *Daemon) checkImageDeleteSoftConflict(img *image.Image) *imageDelet
 // that there are no repository references to the given image and it has no
 // child images.
 func (daemon *Daemon) imageIsDangling(img *image.Image) bool {
-	return !(daemon.Repositories().HasReferences(img) || daemon.Graph().HasChildren(img))
+	return !(daemon.repositories.HasReferences(img) || daemon.Graph().HasChildren(img))
 }

daemon/list.go

@@ -163,7 +163,7 @@ func (daemon *Daemon) foldFilter(config *ContainersConfig) (*listContext, error)
 		// The idea is to walk the graph down the most "efficient" way.
 		for _, ancestor := range ancestors {
 			// First, get the imageId of the ancestor filter (yay)
-			image, err := daemon.Repositories().LookupImage(ancestor)
+			image, err := daemon.repositories.LookupImage(ancestor)
 			if err != nil {
 				logrus.Warnf("Error while looking up for image %v", ancestor)
 				continue
@@ -297,7 +297,7 @@ func (daemon *Daemon) transformContainer(container *Container, ctx *listContext)
 		newC.Names = []string{}
 	}
 
-	img, err := daemon.Repositories().LookupImage(container.Config.Image)
+	img, err := daemon.repositories.LookupImage(container.Config.Image)
 	if err != nil {
 		// If the image can no longer be found by its original reference,
 		// it makes sense to show the ID instead of a stale reference.