Method String

pkg/compose/plan.go:146–171

String renders the plan as a human-readable graph for testing and debugging. Format per line: [dep1,dep2] -> #id resource, operation, cause [group] Examples: [] -> #1 network:default, CreateNetwork, not found [1] -> #2 service:web:1, CreateContainer, no existing container [2] -> #3 service:web

()

//	[1] -> #2 service:web:1, CreateContainer, no existing container
//	[2] -> #3 service:web:1, StopContainer, replaced by #2 [recreate:web:1]
func (p *Plan) String() string {
	var sb strings.Builder
	for _, node := range p.Nodes {
		depIDs := make([]int, len(node.DependsOn))
		for i, d := range node.DependsOn {
			depIDs[i] = d.ID
		}
		sort.Ints(depIDs)
		deps := make([]string, len(depIDs))
		for i, id := range depIDs {
			deps[i] = strconv.Itoa(id)
		}
		fmt.Fprintf(&sb, "[%s] -> #%d %s, %s, %s",
			strings.Join(deps, ","),
			node.ID,
			node.Operation.ResourceID,
			node.Operation.Type,
			node.Operation.Cause,
		)
		if node.Group != "" {
			fmt.Fprintf(&sb, " [%s]", node.Group)
		}
		sb.WriteByte('\n')
	}
	return sb.String()
}

// IsEmpty returns true if the plan contains no operations.
func (p *Plan) IsEmpty() bool {