Method Execute

cf/commands/application/scale.go:79–159

(c flags.FlagContext)

var bytesInAMegabyte int64 = 1024 * 1024

func (cmd *Scale) Execute(c flags.FlagContext) error {
	currentApp := cmd.appReq.GetApplication()
	if !anyFlagsSet(c) {
		cmd.ui.Say(T("Showing current scale of app {{.AppName}} in org {{.OrgName}} / space {{.SpaceName}} as {{.CurrentUser}}...",
			map[string]interface{}{
				"AppName":     terminal.EntityNameColor(currentApp.Name),
				"OrgName":     terminal.EntityNameColor(cmd.config.OrganizationFields().Name),
				"SpaceName":   terminal.EntityNameColor(cmd.config.SpaceFields().Name),
				"CurrentUser": terminal.EntityNameColor(cmd.config.Username()),
			}))
		cmd.ui.Ok()
		cmd.ui.Say("")

		cmd.ui.Say("%s %s", terminal.HeaderColor(T("memory:")), formatters.ByteSize(currentApp.Memory*bytesInAMegabyte))
		cmd.ui.Say("%s %s", terminal.HeaderColor(T("disk:")), formatters.ByteSize(currentApp.DiskQuota*bytesInAMegabyte))
		cmd.ui.Say("%s %d", terminal.HeaderColor(T("instances:")), currentApp.InstanceCount)

		return nil
	}

	params := models.AppParams{}
	shouldRestart := false

	if c.String("m") != "" {
		memory, err := formatters.ToMegabytes(c.String("m"))
		if err != nil {
			return errors.New(T("Invalid memory limit: {{.Memory}}\n{{.ErrorDescription}}",
				map[string]interface{}{
					"Memory":           c.String("m"),
					"ErrorDescription": err,
				}))
		}
		params.Memory = &memory
		shouldRestart = true
	}

	if c.String("k") != "" {
		diskQuota, err := formatters.ToMegabytes(c.String("k"))
		if err != nil {
			return errors.New(T("Invalid disk quota: {{.DiskQuota}}\n{{.ErrorDescription}}",
				map[string]interface{}{
					"DiskQuota":        c.String("k"),
					"ErrorDescription": err,
				}))
		}
		params.DiskQuota = &diskQuota
		shouldRestart = true
	}

	if c.IsSet("i") {
		instances := c.Int("i")
		params.InstanceCount = &instances
	}

	if shouldRestart && !cmd.confirmRestart(c, currentApp.Name) {
		return nil
	}