Function runTree

cli/command/image/tree.go:38–151

(ctx context.Context, dockerCLI command.Cli, opts treeOptions)

}

func runTree(ctx context.Context, dockerCLI command.Cli, opts treeOptions) (int, error) {
	images := opts.images

	view := treeView{
		images: make([]topImage, 0, len(images)),
	}
	attested := make(map[digest.Digest]bool)

	for _, img := range images {
		if ctx.Err() != nil {
			return 0, ctx.Err()
		}
		topDetails := imageDetails{
			ID:        img.ID,
			DiskUsage: units.HumanSizeWithPrecision(float64(img.Size), 3),
			InUse:     img.Containers > 0,
		}

		var totalContent int64
		children := make([]subImage, 0, len(img.Manifests))
		for _, im := range img.Manifests {
			totalContent += im.Size.Content

			if im.Kind == imagetypes.ManifestKindAttestation {
				attested[im.AttestationData.For] = true
				continue
			}
			if im.Kind != imagetypes.ManifestKindImage {
				continue
			}

			inUse := len(im.ImageData.Containers) > 0
			if inUse {
				// Mark top-level parent image as used if any of its subimages are used.
				topDetails.InUse = true
			}

			if !opts.expanded {
				continue
			}

			sub := subImage{
				Platform:  platforms.Format(im.ImageData.Platform),
				Available: im.Available,
				Details: imageDetails{
					ID:          im.ID,
					DiskUsage:   units.HumanSizeWithPrecision(float64(im.Size.Total), 3),
					InUse:       inUse,
					ContentSize: units.HumanSizeWithPrecision(float64(im.Size.Content), 3),
				},
			}

			children = append(children, sub)

			// Add extra spacing between images if there's at least one entry with children.
			view.imageSpacing = true
		}