Golang Version.LessThan方法代碼示例

func getImagesByName(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
	if vars == nil {
		return fmt.Errorf("Missing parameter")
	}
	var job = eng.Job("image_inspect", vars["name"])
	if version.LessThan("1.12") {
		job.SetenvBool("raw", true)
	}
	streamJSON(job, w, false)
	return job.Run()
}

func getContainersTop(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
	if version.LessThan("1.4") {
		return fmt.Errorf("top was improved a lot since 1.3, Please upgrade your docker client.")
	}
	if vars == nil {
		return fmt.Errorf("Missing parameter")
	}
	if err := parseForm(r); err != nil {
		return err
	}

	job := eng.Job("top", vars["name"], r.Form.Get("ps_args"))
	streamJSON(job, w, false)
	return job.Run()
}

func getImagesJSON(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("images")
	)

	job.Setenv("filters", r.Form.Get("filters"))
	// FIXME this parameter could just be a match filter
	job.Setenv("filter", r.Form.Get("filter"))
	job.Setenv("all", r.Form.Get("all"))

	if version.GreaterThanOrEqualTo("1.7") {
		streamJSON(job, w, false)
	} else if outs, err = job.Stdout.AddListTable(); err != nil {
		return err
	}

	if err := job.Run(); err != nil {
		return err
	}

	if version.LessThan("1.7") && outs != nil { // Convert to legacy format
		outsLegacy := engine.NewTable("Created", 0)
		for _, out := range outs.Data {
			for _, repoTag := range out.GetList("RepoTags") {
				repo, tag := parsers.ParseRepositoryTag(repoTag)
				outLegacy := &engine.Env{}
				outLegacy.Set("Repository", repo)
				outLegacy.SetJson("Tag", tag)
				outLegacy.Set("Id", out.Get("Id"))
				outLegacy.SetInt64("Created", out.GetInt64("Created"))
				outLegacy.SetInt64("Size", out.GetInt64("Size"))
				outLegacy.SetInt64("VirtualSize", out.GetInt64("VirtualSize"))
				outsLegacy.Add(outLegacy)
			}
		}
		w.Header().Set("Content-Type", "application/json")
		if _, err := outsLegacy.WriteListTo(w); err != nil {
			return err
		}
	}
	return nil
}

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
}

func postBuild(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
	if version.LessThan("1.3") {
		return fmt.Errorf("Multipart upload for build is no longer supported. Please upgrade your docker client.")
	}
	var (
		authEncoded       = r.Header.Get("X-Registry-Auth")
		authConfig        = &registry.AuthConfig{}
		configFileEncoded = r.Header.Get("X-Registry-Config")
		configFile        = &registry.ConfigFile{}
		job               = eng.Job("build")
	)

	// This block can be removed when API versions prior to 1.9 are deprecated.
	// Both headers will be parsed and sent along to the daemon, but if a non-empty
	// ConfigFile is present, any value provided as an AuthConfig directly will
	// be overridden. See BuildFile::CmdFrom for details.
	if version.LessThan("1.9") && authEncoded != "" {
		authJson := base64.NewDecoder(base64.URLEncoding, strings.NewReader(authEncoded))
		if err := json.NewDecoder(authJson).Decode(authConfig); err != nil {
			// for a pull it is not an error if no auth was given
			// to increase compatibility with the existing api it is defaulting to be empty
			authConfig = &registry.AuthConfig{}
		}
	}

	if configFileEncoded != "" {
		configFileJson := base64.NewDecoder(base64.URLEncoding, strings.NewReader(configFileEncoded))
		if err := json.NewDecoder(configFileJson).Decode(configFile); err != nil {
			// for a pull it is not an error if no auth was given
			// to increase compatibility with the existing api it is defaulting to be empty
			configFile = &registry.ConfigFile{}
		}
	}

	if version.GreaterThanOrEqualTo("1.8") {
		job.SetenvBool("json", true)
		streamJSON(job, w, true)
	} else {
		job.Stdout.Add(utils.NewWriteFlusher(w))
	}

	if r.FormValue("forcerm") == "1" && version.GreaterThanOrEqualTo("1.12") {
		job.Setenv("rm", "1")
	} else if r.FormValue("rm") == "" && version.GreaterThanOrEqualTo("1.12") {
		job.Setenv("rm", "1")
	} else {
		job.Setenv("rm", r.FormValue("rm"))
	}
	job.Stdin.Add(r.Body)
	job.Setenv("remote", r.FormValue("remote"))
	job.Setenv("t", r.FormValue("t"))
	job.Setenv("q", r.FormValue("q"))
	job.Setenv("nocache", r.FormValue("nocache"))
	job.Setenv("forcerm", r.FormValue("forcerm"))
	job.SetenvJson("authConfig", authConfig)
	job.SetenvJson("configFile", configFile)

	if err := job.Run(); err != nil {
		if !job.Stdout.Used() {
			return err
		}
		sf := utils.NewStreamFormatter(version.GreaterThanOrEqualTo("1.8"))
		w.Write(sf.FormatError(err))
	}
	return nil
}