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Start image for --dot

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This commit is contained in:
gkovacs81 2015-10-13 17:57:26 +02:00
parent 4da0559824
commit b95175dae8
1 changed files with 10 additions and 9 deletions
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19
images.go
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@ -124,6 +124,7 @@ func (x *ImagesCommand) Execute(args []string) error {
if startImage == nil { if startImage == nil {
roots = collectRoots(images) roots = collectRoots(images)
} else { } else {
startImage.ParentId = ""
roots = []Image{*startImage} roots = []Image{*startImage}
} }
@ -145,7 +146,10 @@ func (x *ImagesCommand) Execute(args []string) error {
jsonToText(&buffer, imagesCommand.NoTruncate, roots, imagesByParent, "") jsonToText(&buffer, imagesCommand.NoTruncate, roots, imagesByParent, "")
} }
if imagesCommand.Dot { if imagesCommand.Dot {
imagesToDot(&buffer, images) buffer.WriteString("digraph docker {\n")
imagesToDot(&buffer, roots, imagesByParent)
buffer.WriteString(" base [style=invisible]\n}\n")
buffer.String()
} }
fmt.Print(buffer.String()) fmt.Print(buffer.String())
@ -295,10 +299,8 @@ func parseImagesJSON(rawJSON []byte) (*[]Image, error) {
} }
func imagesToDot(buffer *bytes.Buffer, images *[]Image) string { func imagesToDot(buffer *bytes.Buffer, images []Image, byParent map[string][]Image) {
buffer.WriteString("digraph docker {\n") for _, image := range images {
for _, image := range *images {
if image.ParentId == "" { if image.ParentId == "" {
buffer.WriteString(fmt.Sprintf(" base -> \"%s\" [style=invis]\n", truncate(image.Id))) buffer.WriteString(fmt.Sprintf(" base -> \"%s\" [style=invis]\n", truncate(image.Id)))
} else { } else {
@ -307,11 +309,10 @@ func imagesToDot(buffer *bytes.Buffer, images *[]Image) string {
if image.RepoTags[0] != "<none>:<none>" { if image.RepoTags[0] != "<none>:<none>" {
buffer.WriteString(fmt.Sprintf(" \"%s\" [label=\"%s\\n%s\",shape=box,fillcolor=\"paleturquoise\",style=\"filled,rounded\"];\n", truncate(image.Id), truncate(image.Id), strings.Join(image.RepoTags, "\\n"))) buffer.WriteString(fmt.Sprintf(" \"%s\" [label=\"%s\\n%s\",shape=box,fillcolor=\"paleturquoise\",style=\"filled,rounded\"];\n", truncate(image.Id), truncate(image.Id), strings.Join(image.RepoTags, "\\n")))
} }
if subimages, exists := byParent[image.Id]; exists {
imagesToDot(buffer, subimages, byParent)
}
} }
buffer.WriteString(" base [style=invisible]\n}\n")
return buffer.String()
} }