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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,246 @@ | ||
| package image | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "strings" | ||
| "unicode/utf8" | ||
|
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| "github.com/docker/cli/cli/command" | ||
|
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| "github.com/containerd/platforms" | ||
| "github.com/docker/docker/api/types/filters" | ||
| imagetypes "github.com/docker/docker/api/types/image" | ||
| "github.com/docker/docker/pkg/stringid" | ||
| "github.com/docker/go-units" | ||
| "github.com/fatih/color" | ||
| ) | ||
|
|
||
| type treeOptions struct { | ||
| all bool | ||
| filters filters.Args | ||
| } | ||
|
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| func runTree(ctx context.Context, dockerCLI command.Cli, opts treeOptions) error { | ||
| images, err := dockerCLI.Client().ImageList(ctx, imagetypes.ListOptions{ | ||
| All: opts.all, | ||
| ContainerCount: true, | ||
| Filters: opts.filters, | ||
| }) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
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| var view []topImage | ||
| for _, img := range images { | ||
| details := imageDetails{ | ||
| ID: img.ID, | ||
| DiskUsage: units.HumanSizeWithPrecision(float64(img.Size), 3), | ||
| Used: img.Containers > 0, | ||
| } | ||
|
|
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| var children []subImage | ||
| for _, im := range img.Manifests { | ||
| if im.Kind != imagetypes.ImageManifestKindImage { | ||
| continue | ||
| } | ||
|
|
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| imgData := im.ImageData | ||
| platform := imgData.Platform | ||
|
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| sub := subImage{ | ||
| Platform: platforms.Format(platform), | ||
| Available: im.Available, | ||
| Details: imageDetails{ | ||
| ID: im.ID, | ||
| DiskUsage: units.HumanSizeWithPrecision(float64(im.ContentSize+imgData.UnpackedSize), 3), | ||
| Used: imgData.Containers > 0, | ||
| }, | ||
| } | ||
|
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| children = append(children, sub) | ||
| } | ||
|
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| for _, tag := range img.RepoTags { | ||
| view = append(view, topImage{ | ||
| Name: tag, | ||
| Details: details, | ||
| Children: children, | ||
| }) | ||
| } | ||
| } | ||
|
|
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| return printImageTree(dockerCLI, view) | ||
| } | ||
|
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| type imageDetails struct { | ||
| ID string | ||
| DiskUsage string | ||
| Used bool | ||
| } | ||
|
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| type topImage struct { | ||
| Name string | ||
| Details imageDetails | ||
| Children []subImage | ||
| } | ||
|
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| type subImage struct { | ||
| Platform string | ||
| Available bool | ||
| Details imageDetails | ||
| } | ||
|
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| func printImageTree(dockerCLI command.Cli, images []topImage) error { | ||
| out := dockerCLI.Out() | ||
| _, width := out.GetTtySize() | ||
|
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| headers := []header{ | ||
| {Title: "Image", Width: 0, Left: true}, | ||
| {Title: "ID", Width: 12}, | ||
| {Title: "Disk usage", Width: 8}, | ||
| {Title: "Used", Width: 4}, | ||
| } | ||
|
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| const spacing = 3 | ||
| nameWidth := int(width) | ||
| for _, h := range headers { | ||
| if h.Width == 0 { | ||
| continue | ||
| } | ||
| nameWidth -= h.Width | ||
| nameWidth -= spacing | ||
| } | ||
|
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| maxImageName := len(headers[0].Title) | ||
| for _, img := range images { | ||
| if len(img.Name) > maxImageName { | ||
| maxImageName = len(img.Name) | ||
| } | ||
| for _, sub := range img.Children { | ||
| if len(sub.Platform) > maxImageName { | ||
| maxImageName = len(sub.Platform) | ||
| } | ||
| } | ||
| } | ||
|
|
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| if nameWidth > maxImageName+spacing { | ||
| nameWidth = maxImageName + spacing | ||
| } | ||
|
|
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| if nameWidth < 0 { | ||
| headers = headers[:1] | ||
| nameWidth = int(width) | ||
| } | ||
| headers[0].Width = nameWidth | ||
|
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| headerColor := color.New(color.FgHiWhite).Add(color.Bold) | ||
|
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| // Print headers | ||
| for i, h := range headers { | ||
| if i > 0 { | ||
| _, _ = fmt.Fprint(out, strings.Repeat(" ", spacing)) | ||
| } | ||
|
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| headerColor.Fprint(out, h.PrintC(headerColor, h.Title)) | ||
| } | ||
|
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| _, _ = fmt.Fprintln(out) | ||
|
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| topNameColor := color.New(color.FgBlue).Add(color.Underline).Add(color.Bold) | ||
| normalColor := color.New(color.FgWhite) | ||
| normalFaintedColor := color.New(color.FgWhite).Add(color.Faint) | ||
| greenColor := color.New(color.FgGreen) | ||
|
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| printDetails := func(clr *color.Color, details imageDetails) { | ||
| truncID := stringid.TruncateID(details.ID) | ||
| fmt.Fprint(out, headers[1].Print(clr, truncID)) | ||
| fmt.Fprint(out, strings.Repeat(" ", spacing)) | ||
|
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| fmt.Fprint(out, headers[2].Print(clr, details.DiskUsage)) | ||
| fmt.Fprint(out, strings.Repeat(" ", spacing)) | ||
|
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| if details.Used { | ||
| fmt.Fprint(out, headers[3].Print(greenColor, " ✔ ️")) | ||
| } else { | ||
| fmt.Fprint(out, headers[3].Print(clr, " ")) | ||
| } | ||
| } | ||
|
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| // Print images | ||
| for _, img := range images { | ||
| fmt.Fprint(out, headers[0].Print(topNameColor, img.Name)) | ||
| fmt.Fprint(out, strings.Repeat(" ", spacing)) | ||
|
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| printDetails(normalColor, img.Details) | ||
|
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| _, _ = fmt.Fprintln(out, "") | ||
| for idx, sub := range img.Children { | ||
| clr := normalColor | ||
| if !sub.Available { | ||
| clr = normalFaintedColor | ||
| } | ||
|
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| if idx != len(img.Children)-1 { | ||
| fmt.Fprint(out, headers[0].Print(clr, "├─ "+sub.Platform)) | ||
| } else { | ||
| fmt.Fprint(out, headers[0].Print(clr, "└─ "+sub.Platform)) | ||
| } | ||
|
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| fmt.Fprint(out, strings.Repeat(" ", spacing)) | ||
| printDetails(clr, sub.Details) | ||
|
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| fmt.Fprintln(out, "") | ||
| } | ||
| } | ||
|
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| return nil | ||
| } | ||
|
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| type header struct { | ||
| Title string | ||
| Width int | ||
| Left bool | ||
| } | ||
|
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| func truncateRunes(s string, length int) string { | ||
| runes := []rune(s) | ||
| if len(runes) > length { | ||
| return string(runes[:length]) | ||
| } | ||
| return s | ||
| } | ||
|
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| func (h header) Print(clr *color.Color, s string) (out string) { | ||
| if h.Left { | ||
| return h.PrintL(clr, s) | ||
| } | ||
| return h.PrintC(clr, s) | ||
| } | ||
|
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| func (h header) PrintC(clr *color.Color, s string) (out string) { | ||
| ln := utf8.RuneCountInString(s) | ||
| if h.Left { | ||
| return h.PrintL(clr, s) | ||
| } | ||
|
|
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| if ln > h.Width { | ||
| return clr.Sprint(truncateRunes(s, h.Width)) | ||
| } | ||
|
|
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| fill := h.Width - ln | ||
|
|
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| l := fill / 2 | ||
| r := fill - l | ||
|
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| return strings.Repeat(" ", l) + clr.Sprint(s) + strings.Repeat(" ", r) | ||
| } | ||
|
|
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| func (h header) PrintL(clr *color.Color, s string) string { | ||
| ln := utf8.RuneCountInString(s) | ||
| if ln > h.Width { | ||
| return clr.Sprint(truncateRunes(s, h.Width)) | ||
| } | ||
|
|
||
| return clr.Sprint(s) + strings.Repeat(" ", h.Width-ln) | ||
| } |
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