Golang PodManifest.UnmarshalJSON方法代码示例

// getAppName returns the app name to enter
// If one was supplied in the flags then it's simply returned
// If the PM contains a single app, that app's name is returned
// If the PM has multiple apps, the names are printed and an error is returned
func getAppName(p *pod) (*types.ACName, error) {
	if flagAppName != "" {
		return types.NewACName(flagAppName)
	}

	// figure out the app name, or show a list if multiple are present
	b, err := ioutil.ReadFile(common.PodManifestPath(p.path()))
	if err != nil {
		return nil, errwrap.Wrap(errors.New("error reading pod manifest"), err)
	}

	m := schema.PodManifest{}
	if err = m.UnmarshalJSON(b); err != nil {
		return nil, errwrap.Wrap(errors.New("invalid pod manifest"), err)
	}

	switch len(m.Apps) {
	case 0:
		return nil, fmt.Errorf("pod contains zero apps")
	case 1:
		return &m.Apps[0].Name, nil
	default:
	}

	stderr.Print("pod contains multiple apps:")
	for _, ra := range m.Apps {
		stderr.Printf("\t%v", ra.Name)
	}

	return nil, fmt.Errorf("specify app using \"rkt enter --app= ...\"")
}

func runList(cmd *cobra.Command, args []string) int {
	var errors []error
	tabBuffer := new(bytes.Buffer)
	tabOut := getTabOutWithWriter(tabBuffer)

	if !flagNoLegend {
		if flagFullOutput {
			fmt.Fprintf(tabOut, "UUID\tAPP\tIMAGE NAME\tIMAGE ID\tSTATE\tCREATED\tSTARTED\tNETWORKS\n")
		} else {
			fmt.Fprintf(tabOut, "UUID\tAPP\tIMAGE NAME\tSTATE\tCREATED\tSTARTED\tNETWORKS\n")
		}
	}

	if err := walkPods(includeMostDirs, func(p *pod) {
		pm := schema.PodManifest{}

		if !p.isPreparing && !p.isAbortedPrepare && !p.isExitedDeleting {
			// TODO(vc): we should really hold a shared lock here to prevent gc of the pod
			pmf, err := p.readFile(common.PodManifestPath(""))
			if err != nil {
				errors = append(errors, newPodListReadError(p, err))
				return
			}

			if err := pm.UnmarshalJSON(pmf); err != nil {
				errors = append(errors, newPodListLoadError(p, err, pmf))
				return
			}

			if len(pm.Apps) == 0 {
				errors = append(errors, newPodListZeroAppsError(p))
				return
			}
		}

		type printedApp struct {
			uuid    string
			appName string
			imgName string
			imgID   string
			state   string
			nets    string
			created string
			started string
		}

		var appsToPrint []printedApp
		uuid := p.uuid.String()
		state := p.getState()
		nets := fmtNets(p.nets)

		created, err := p.getCreationTime()
		if err != nil {
			errors = append(errors, errwrap.Wrap(fmt.Errorf("unable to get creation time for pod %q", uuid), err))
		}
		var createdStr string
		if flagFullOutput {
			createdStr = created.Format(defaultTimeLayout)
		} else {
			createdStr = humanize.Time(created)
		}

		started, err := p.getStartTime()
		if err != nil {
			errors = append(errors, errwrap.Wrap(fmt.Errorf("unable to get start time for pod %q", uuid), err))
		}
		var startedStr string
		if !started.IsZero() {
			if flagFullOutput {
				startedStr = started.Format(defaultTimeLayout)
			} else {
				startedStr = humanize.Time(started)
			}
		}

		if !flagFullOutput {
			uuid = uuid[:8]
		}
		for _, app := range pm.Apps {
			imageName, err := getImageName(p, app.Name)
			if err != nil {
				errors = append(errors, newPodListLoadImageManifestError(p, err))
				imageName = "--"
			}

			var imageID string
			if flagFullOutput {
				imageID = app.Image.ID.String()[:19]
			}

			appsToPrint = append(appsToPrint, printedApp{
				uuid:    uuid,
				appName: app.Name.String(),
				imgName: imageName,
				imgID:   imageID,
				state:   state,
				nets:    nets,
				created: createdStr,
				started: startedStr,
			})
//.........这里部分代码省略.........

func BasicPodManifest() *schema.PodManifest {
	im := new(schema.PodManifest)
	im.UnmarshalJSON([]byte(POD_MANIFEST))
	return im
}