274 lines
7.9 KiB
Go
274 lines
7.9 KiB
Go
package client
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import (
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"encoding/json"
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"fmt"
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"net/url"
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"strings"
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"text/tabwriter"
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"time"
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"github.com/docker/docker/api/types"
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"github.com/docker/docker/opts"
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flag "github.com/docker/docker/pkg/mflag"
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"github.com/docker/docker/pkg/parsers"
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"github.com/docker/docker/pkg/parsers/filters"
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"github.com/docker/docker/pkg/stringid"
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"github.com/docker/docker/pkg/units"
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"github.com/docker/docker/utils"
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)
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// FIXME: --viz and --tree are deprecated. Remove them in a future version.
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func (cli *DockerCli) WalkTree(noTrunc bool, images []*types.Image, byParent map[string][]*types.Image, prefix string, printNode func(cli *DockerCli, noTrunc bool, image *types.Image, prefix string)) {
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length := len(images)
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if length > 1 {
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for index, image := range images {
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if index+1 == length {
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printNode(cli, noTrunc, image, prefix+"└─")
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if subimages, exists := byParent[image.ID]; exists {
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cli.WalkTree(noTrunc, subimages, byParent, prefix+" ", printNode)
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}
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} else {
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printNode(cli, noTrunc, image, prefix+"\u251C─")
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if subimages, exists := byParent[image.ID]; exists {
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cli.WalkTree(noTrunc, subimages, byParent, prefix+"\u2502 ", printNode)
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}
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}
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}
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} else {
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for _, image := range images {
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printNode(cli, noTrunc, image, prefix+"└─")
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if subimages, exists := byParent[image.ID]; exists {
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cli.WalkTree(noTrunc, subimages, byParent, prefix+" ", printNode)
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}
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}
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}
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}
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// FIXME: --viz and --tree are deprecated. Remove them in a future version.
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func (cli *DockerCli) printVizNode(noTrunc bool, image *types.Image, prefix string) {
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var (
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imageID string
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parentID string
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)
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if noTrunc {
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imageID = image.ID
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parentID = image.ParentId
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} else {
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imageID = stringid.TruncateID(image.ID)
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parentID = stringid.TruncateID(image.ParentId)
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}
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if parentID == "" {
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fmt.Fprintf(cli.out, " base -> \"%s\" [style=invis]\n", imageID)
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} else {
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fmt.Fprintf(cli.out, " \"%s\" -> \"%s\"\n", parentID, imageID)
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}
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if image.RepoTags[0] != "<none>:<none>" {
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fmt.Fprintf(cli.out, " \"%s\" [label=\"%s\\n%s\",shape=box,fillcolor=\"paleturquoise\",style=\"filled,rounded\"];\n",
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imageID, imageID, strings.Join(image.RepoTags, "\\n"))
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}
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}
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// FIXME: --viz and --tree are deprecated. Remove them in a future version.
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func (cli *DockerCli) printTreeNode(noTrunc bool, image *types.Image, prefix string) {
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var imageID string
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if noTrunc {
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imageID = image.ID
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} else {
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imageID = stringid.TruncateID(image.ID)
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}
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fmt.Fprintf(cli.out, "%s%s Virtual Size: %s", prefix, imageID, units.HumanSize(float64(image.VirtualSize)))
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if image.RepoTags[0] != "<none>:<none>" {
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fmt.Fprintf(cli.out, " Tags: %s\n", strings.Join(image.RepoTags, ", "))
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} else {
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fmt.Fprint(cli.out, "\n")
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}
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}
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// CmdImages lists the images in a specified repository, or all top-level images if no repository is specified.
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//
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// Usage: docker images [OPTIONS] [REPOSITORY]
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func (cli *DockerCli) CmdImages(args ...string) error {
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cmd := cli.Subcmd("images", "[REPOSITORY]", "List images", true)
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quiet := cmd.Bool([]string{"q", "-quiet"}, false, "Only show numeric IDs")
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all := cmd.Bool([]string{"a", "-all"}, false, "Show all images (default hides intermediate images)")
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noTrunc := cmd.Bool([]string{"#notrunc", "-no-trunc"}, false, "Don't truncate output")
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showDigests := cmd.Bool([]string{"-digests"}, false, "Show digests")
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// FIXME: --viz and --tree are deprecated. Remove them in a future version.
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flViz := cmd.Bool([]string{"#v", "#viz", "#-viz"}, false, "Output graph in graphviz format")
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flTree := cmd.Bool([]string{"#t", "#tree", "#-tree"}, false, "Output graph in tree format")
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flFilter := opts.NewListOpts(nil)
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cmd.Var(&flFilter, []string{"f", "-filter"}, "Filter output based on conditions provided")
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cmd.Require(flag.Max, 1)
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cmd.ParseFlags(args, true)
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// Consolidate all filter flags, and sanity check them early.
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// They'll get process in the daemon/server.
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imageFilterArgs := filters.Args{}
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for _, f := range flFilter.GetAll() {
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var err error
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imageFilterArgs, err = filters.ParseFlag(f, imageFilterArgs)
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if err != nil {
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return err
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}
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}
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matchName := cmd.Arg(0)
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// FIXME: --viz and --tree are deprecated. Remove them in a future version.
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if *flViz || *flTree {
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v := url.Values{
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"all": []string{"1"},
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}
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if len(imageFilterArgs) > 0 {
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filterJSON, err := filters.ToParam(imageFilterArgs)
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if err != nil {
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return err
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}
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v.Set("filters", filterJSON)
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}
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rdr, _, err := cli.call("GET", "/images/json?"+v.Encode(), nil, nil)
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if err != nil {
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return err
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}
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images := []types.Image{}
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err = json.NewDecoder(rdr).Decode(&images)
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if err != nil {
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return err
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}
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var (
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printNode func(cli *DockerCli, noTrunc bool, image *types.Image, prefix string)
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startImage *types.Image
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roots = []*types.Image{}
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byParent = make(map[string][]*types.Image)
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)
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for _, image := range images {
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if image.ParentId == "" {
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roots = append(roots, &image)
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} else {
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if children, exists := byParent[image.ParentId]; exists {
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children = append(children, &image)
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} else {
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byParent[image.ParentId] = []*types.Image{&image}
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}
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}
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if matchName != "" {
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if matchName == image.ID || matchName == stringid.TruncateID(image.ID) {
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startImage = &image
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}
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for _, repotag := range image.RepoTags {
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if repotag == matchName {
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startImage = &image
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}
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}
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}
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}
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if *flViz {
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fmt.Fprintf(cli.out, "digraph docker {\n")
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printNode = (*DockerCli).printVizNode
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} else {
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printNode = (*DockerCli).printTreeNode
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}
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if startImage != nil {
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root := []*types.Image{startImage}
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cli.WalkTree(*noTrunc, root, byParent, "", printNode)
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} else if matchName == "" {
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cli.WalkTree(*noTrunc, roots, byParent, "", printNode)
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}
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if *flViz {
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fmt.Fprintf(cli.out, " base [style=invisible]\n}\n")
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}
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} else {
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v := url.Values{}
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if len(imageFilterArgs) > 0 {
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filterJSON, err := filters.ToParam(imageFilterArgs)
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if err != nil {
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return err
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}
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v.Set("filters", filterJSON)
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}
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if cmd.NArg() == 1 {
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// FIXME rename this parameter, to not be confused with the filters flag
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v.Set("filter", matchName)
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}
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if *all {
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v.Set("all", "1")
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}
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rdr, _, err := cli.call("GET", "/images/json?"+v.Encode(), nil, nil)
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if err != nil {
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return err
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}
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images := []types.Image{}
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err = json.NewDecoder(rdr).Decode(&images)
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if err != nil {
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return err
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}
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w := tabwriter.NewWriter(cli.out, 20, 1, 3, ' ', 0)
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if !*quiet {
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if *showDigests {
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fmt.Fprintln(w, "REPOSITORY\tTAG\tDIGEST\tIMAGE ID\tCREATED\tVIRTUAL SIZE")
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} else {
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fmt.Fprintln(w, "REPOSITORY\tTAG\tIMAGE ID\tCREATED\tVIRTUAL SIZE")
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}
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}
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for _, image := range images {
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ID := image.ID
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if !*noTrunc {
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ID = stringid.TruncateID(ID)
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}
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repoTags := image.RepoTags
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repoDigests := image.RepoDigests
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if len(repoTags) == 1 && repoTags[0] == "<none>:<none>" && len(repoDigests) == 1 && repoDigests[0] == "<none>@<none>" {
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// dangling image - clear out either repoTags or repoDigsts so we only show it once below
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repoDigests = []string{}
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}
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// combine the tags and digests lists
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tagsAndDigests := append(repoTags, repoDigests...)
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for _, repoAndRef := range tagsAndDigests {
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repo, ref := parsers.ParseRepositoryTag(repoAndRef)
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// default tag and digest to none - if there's a value, it'll be set below
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tag := "<none>"
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digest := "<none>"
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if utils.DigestReference(ref) {
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digest = ref
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} else {
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tag = ref
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}
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if !*quiet {
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if *showDigests {
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fmt.Fprintf(w, "%s\t%s\t%s\t%s\t%s ago\t%s\n", repo, tag, digest, ID, units.HumanDuration(time.Now().UTC().Sub(time.Unix(int64(image.Created), 0))), units.HumanSize(float64(image.VirtualSize)))
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} else {
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fmt.Fprintf(w, "%s\t%s\t%s\t%s ago\t%s\n", repo, tag, ID, units.HumanDuration(time.Now().UTC().Sub(time.Unix(int64(image.Created), 0))), units.HumanSize(float64(image.VirtualSize)))
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}
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} else {
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fmt.Fprintln(w, ID)
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}
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}
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}
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if !*quiet {
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w.Flush()
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}
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}
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return nil
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}
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