Function Print

cli/command/task/print.go:38–80

Print task information in a format. Besides this, command `docker node ps ` and `docker stack ps` will call this, too.

(ctx context.Context, dockerCli command.Cli, tasks client.TaskListResult, resolver *idresolver.IDResolver, trunc, quiet bool, format string)

// Besides this, command `docker node ps <node>`
// and `docker stack ps` will call this, too.
func Print(ctx context.Context, dockerCli command.Cli, tasks client.TaskListResult, resolver *idresolver.IDResolver, trunc, quiet bool, format string) error {
	tasks, err := generateTaskNames(ctx, tasks, resolver)
	if err != nil {
		return err
	}

	// First sort tasks, so that all tasks (including previous ones) of the same
	// service and slot are together. This must be done first, to print "previous"
	// tasks indented
	sort.Stable(tasksSortable(tasks.Items))

	names := map[string]string{}
	nodes := map[string]string{}

	tasksCtx := formatter.Context{
		Output: dockerCli.Out(),
		Format: newTaskFormat(format, quiet),
		Trunc:  trunc,
	}

	var indent string
	if tasksCtx.Format.IsTable() {
		indent = ` \_ `
	}
	prevName := ""
	for _, task := range tasks.Items {
		if task.Name == prevName {
			// Indent previous tasks of the same slot
			names[task.ID] = indent + task.Name
		} else {
			names[task.ID] = task.Name
		}
		prevName = task.Name

		nodeValue, err := resolver.Resolve(ctx, swarm.Node{}, task.NodeID)
		if err != nil {
			return err
		}
		nodes[task.ID] = nodeValue
	}

	return formatWrite(tasksCtx, tasks, names, nodes)
}

// generateTaskNames generates names for the given tasks, and returns a copy of
// the slice with the 'Name' field set.