From dc94dbd3c17c9011fc1e851694a2190dcf6c2b3c Mon Sep 17 00:00:00 2001 From: baude Date: Tue, 2 Apr 2019 10:26:43 -0500 Subject: podman-remote image tree add the ability for the podman-remote client to be able to print an image tree. Signed-off-by: baude --- libpod/image/image.go | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) (limited to 'libpod') diff --git a/libpod/image/image.go b/libpod/image/image.go index 4862bf1d6..cc056b816 100644 --- a/libpod/image/image.go +++ b/libpod/image/image.go @@ -68,6 +68,16 @@ type Runtime struct { EventsLogFilePath string } +// InfoImage keep information of Image along with all associated layers +type InfoImage struct { + // ID of image + ID string + // Tags of image + Tags []string + // Layers stores all layers of image. + Layers []LayerInfo +} + // ErrRepoTagNotFound is the error returned when the image id given doesn't match a rep tag in store var ErrRepoTagNotFound = errors.New("unable to match user input to any specific repotag") @@ -1277,3 +1287,21 @@ func GetLayersMapWithImageInfo(imageruntime *Runtime) (map[string]*LayerInfo, er } return layerInfoMap, nil } + +// BuildImageHierarchyMap stores hierarchy of images such that all parent layers using which image is built are stored in imageInfo +// Layers are added such that (Start)RootLayer->...intermediate Parent Layer(s)-> TopLayer(End) +func BuildImageHierarchyMap(imageInfo *InfoImage, layerMap map[string]*LayerInfo, layerID string) error { + if layerID == "" { + return nil + } + ll, ok := layerMap[layerID] + if !ok { + return fmt.Errorf("lookup error: layerid %s not found", layerID) + } + if err := BuildImageHierarchyMap(imageInfo, layerMap, ll.ParentID); err != nil { + return err + } + + imageInfo.Layers = append(imageInfo.Layers, *ll) + return nil +} -- cgit v1.2.3-54-g00ecf