Golang engine.Table类代码示例

// FIXME: --viz and --tree are deprecated. Remove them in a future version.
func (cli *DockerCli) WalkTree(noTrunc bool, images *engine.Table, byParent map[string]*engine.Table, prefix string, printNode func(cli *DockerCli, noTrunc bool, image *engine.Env, prefix string)) {
	length := images.Len()
	if length > 1 {
		for index, image := range images.Data {
			if index+1 == length {
				printNode(cli, noTrunc, image, prefix+"└─")
				if subimages, exists := byParent[image.Get("Id")]; exists {
					cli.WalkTree(noTrunc, subimages, byParent, prefix+"  ", printNode)
				}
			} else {
				printNode(cli, noTrunc, image, prefix+"\u251C─")
				if subimages, exists := byParent[image.Get("Id")]; exists {
					cli.WalkTree(noTrunc, subimages, byParent, prefix+"\u2502 ", printNode)
				}
			}
		}
	} else {
		for _, image := range images.Data {
			printNode(cli, noTrunc, image, prefix+"└─")
			if subimages, exists := byParent[image.Get("Id")]; exists {
				cli.WalkTree(noTrunc, subimages, byParent, prefix+"  ", printNode)
			}
		}
	}
}

//TODO remove, used on < 1.5 in getContainersJSON
func DisplayablePorts(ports *engine.Table) string {
	result := []string{}
	ports.SetKey("PublicPort")
	ports.Sort()
	for _, port := range ports.Data {
		if port.Get("IP") == "" {
			result = append(result, fmt.Sprintf("%d/%s", port.GetInt("PrivatePort"), port.Get("Type")))
		} else {
			result = append(result, fmt.Sprintf("%s:%d->%d/%s", port.Get("IP"), port.GetInt("PublicPort"), port.GetInt("PrivatePort"), port.Get("Type")))
		}
	}
	return strings.Join(result, ", ")
}

// TODO remove, used on < 1.5 in getContainersJSON
func DisplayablePorts(ports *engine.Table) string {
	var (
		result          = []string{}
		hostMappings    = []string{}
		firstInGroupMap map[string]int
		lastInGroupMap  map[string]int
	)
	firstInGroupMap = make(map[string]int)
	lastInGroupMap = make(map[string]int)
	ports.SetKey("PrivatePort")
	ports.Sort()
	for _, port := range ports.Data {
		var (
			current      = port.GetInt("PrivatePort")
			portKey      = port.Get("Type")
			firstInGroup int
			lastInGroup  int
		)
		if port.Get("IP") != "" {
			if port.GetInt("PublicPort") != current {
				hostMappings = append(hostMappings, fmt.Sprintf("%s:%d->%d/%s", port.Get("IP"), port.GetInt("PublicPort"), port.GetInt("PrivatePort"), port.Get("Type")))
				continue
			}
			portKey = fmt.Sprintf("%s/%s", port.Get("IP"), port.Get("Type"))
		}
		firstInGroup = firstInGroupMap[portKey]
		lastInGroup = lastInGroupMap[portKey]

		if firstInGroup == 0 {
			firstInGroupMap[portKey] = current
			lastInGroupMap[portKey] = current
			continue
		}

		if current == (lastInGroup + 1) {
			lastInGroupMap[portKey] = current
			continue
		}
		result = append(result, FormGroup(portKey, firstInGroup, lastInGroup))
		firstInGroupMap[portKey] = current
		lastInGroupMap[portKey] = current
	}
	for portKey, firstInGroup := range firstInGroupMap {
		result = append(result, FormGroup(portKey, firstInGroup, lastInGroupMap[portKey]))
	}
	result = append(result, hostMappings...)
	return strings.Join(result, ", ")
}

func getContainersJSON(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
	if err := parseForm(r); err != nil {
		return err
	}
	var (
		err  error
		outs *engine.Table
		job  = eng.Job("containers")
	)

	job.Setenv("all", r.Form.Get("all"))
	job.Setenv("size", r.Form.Get("size"))
	job.Setenv("since", r.Form.Get("since"))
	job.Setenv("before", r.Form.Get("before"))
	job.Setenv("limit", r.Form.Get("limit"))
	job.Setenv("filters", r.Form.Get("filters"))

	if version.GreaterThanOrEqualTo("1.5") {
		streamJSON(job, w, false)
	} else if outs, err = job.Stdout.AddTable(); err != nil {
		return err
	}
	if err = job.Run(); err != nil {
		return err
	}
	if version.LessThan("1.5") { // Convert to legacy format
		for _, out := range outs.Data {
			ports := engine.NewTable("", 0)
			ports.ReadListFrom([]byte(out.Get("Ports")))
			out.Set("Ports", api.DisplayablePorts(ports))
		}
		w.Header().Set("Content-Type", "application/json")
		if _, err = outs.WriteListTo(w); err != nil {
			return err
		}
	}
	return nil
}

// FIXME: make this private and use the job instead
func (daemon *Daemon) DeleteImage(eng *engine.Engine, name string, imgs *engine.Table, first, force, noprune bool) error {
	var (
		repoName, tag string
		tags          = []string{}
	)

	// FIXME: please respect DRY and centralize repo+tag parsing in a single central place! -- shykes
	repoName, tag = parsers.ParseRepositoryTag(name)
	if tag == "" {
		tag = graph.DEFAULTTAG
	}

	if name == "" {
		return fmt.Errorf("Image name can not be blank")
	}

	img, err := daemon.Repositories().LookupImage(name)
	if err != nil {
		if r, _ := daemon.Repositories().Get(repoName); r != nil {
			return fmt.Errorf("No such image: %s:%s", repoName, tag)
		}
		return fmt.Errorf("No such image: %s", name)
	}

	if strings.Contains(img.ID, name) {
		repoName = ""
		tag = ""
	}

	byParents, err := daemon.Graph().ByParent()
	if err != nil {
		return err
	}

	repos := daemon.Repositories().ByID()[img.ID]

	//If delete by id, see if the id belong only to one repository
	if repoName == "" {
		for _, repoAndTag := range repos {
			parsedRepo, parsedTag := parsers.ParseRepositoryTag(repoAndTag)
			if repoName == "" || repoName == parsedRepo {
				repoName = parsedRepo
				if parsedTag != "" {
					tags = append(tags, parsedTag)
				}
			} else if repoName != parsedRepo && !force && first {
				// the id belongs to multiple repos, like base:latest and user:test,
				// in that case return conflict
				return fmt.Errorf("Conflict, cannot delete image %s because it is tagged in multiple repositories, use -f to force", name)
			}
		}
	} else {
		tags = append(tags, tag)
	}

	if !first && len(tags) > 0 {
		return nil
	}

	if len(repos) <= 1 {
		if err := daemon.canDeleteImage(img.ID, force); err != nil {
			return err
		}
	}

	// Untag the current image
	for _, tag := range tags {
		tagDeleted, err := daemon.Repositories().Delete(repoName, tag)
		if err != nil {
			return err
		}
		if tagDeleted {
			out := &engine.Env{}
			out.Set("Untagged", repoName+":"+tag)
			imgs.Add(out)
			eng.Job("log", "untag", img.ID, "").Run()
		}
	}
	tags = daemon.Repositories().ByID()[img.ID]
	if (len(tags) <= 1 && repoName == "") || len(tags) == 0 {
		if len(byParents[img.ID]) == 0 {
			if err := daemon.Repositories().DeleteAll(img.ID); err != nil {
				return err
			}
			if err := daemon.Graph().Delete(img.ID); err != nil {
				return err
			}
			out := &engine.Env{}
			out.SetJson("Deleted", img.ID)
			imgs.Add(out)
			eng.Job("log", "delete", img.ID, "").Run()
			if img.Parent != "" && !noprune {
				err := daemon.DeleteImage(eng, img.Parent, imgs, false, force, noprune)
				if first {
					return err
				}

			}

//.........这里部分代码省略.........

func (srv *Server) DeleteImage(name string, imgs *engine.Table, first, force, noprune bool) error {
	var (
		repoName, tag string
		tags          = []string{}
		tagDeleted    bool
	)

	repoName, tag = parsers.ParseRepositoryTag(name)
	if tag == "" {
		tag = graph.DEFAULTTAG
	}

	img, err := srv.daemon.Repositories().LookupImage(name)
	if err != nil {
		if r, _ := srv.daemon.Repositories().Get(repoName); r != nil {
			return fmt.Errorf("No such image: %s:%s", repoName, tag)
		}
		return fmt.Errorf("No such image: %s", name)
	}

	if strings.Contains(img.ID, name) {
		repoName = ""
		tag = ""
	}

	byParents, err := srv.daemon.Graph().ByParent()
	if err != nil {
		return err
	}

	//If delete by id, see if the id belong only to one repository
	if repoName == "" {
		for _, repoAndTag := range srv.daemon.Repositories().ByID()[img.ID] {
			parsedRepo, parsedTag := parsers.ParseRepositoryTag(repoAndTag)
			if repoName == "" || repoName == parsedRepo {
				repoName = parsedRepo
				if parsedTag != "" {
					tags = append(tags, parsedTag)
				}
			} else if repoName != parsedRepo && !force {
				// the id belongs to multiple repos, like base:latest and user:test,
				// in that case return conflict
				return fmt.Errorf("Conflict, cannot delete image %s because it is tagged in multiple repositories, use -f to force", name)
			}
		}
	} else {
		tags = append(tags, tag)
	}

	if !first && len(tags) > 0 {
		return nil
	}

	//Untag the current image
	for _, tag := range tags {
		tagDeleted, err = srv.daemon.Repositories().Delete(repoName, tag)
		if err != nil {
			return err
		}
		if tagDeleted {
			out := &engine.Env{}
			out.Set("Untagged", repoName+":"+tag)
			imgs.Add(out)
			srv.LogEvent("untag", img.ID, "")
		}
	}
	tags = srv.daemon.Repositories().ByID()[img.ID]
	if (len(tags) <= 1 && repoName == "") || len(tags) == 0 {
		if len(byParents[img.ID]) == 0 {
			if err := srv.canDeleteImage(img.ID, force, tagDeleted); err != nil {
				return err
			}
			if err := srv.daemon.Repositories().DeleteAll(img.ID); err != nil {
				return err
			}
			if err := srv.daemon.Graph().Delete(img.ID); err != nil {
				return err
			}
			out := &engine.Env{}
			out.Set("Deleted", img.ID)
			imgs.Add(out)
			srv.LogEvent("delete", img.ID, "")
			if img.Parent != "" && !noprune {
				err := srv.DeleteImage(img.Parent, imgs, false, force, noprune)
				if first {
					return err
				}

			}

		}
	}
	return nil
}