Function detectRuntime

cmd/pulumi.go:460–485

(dir string)

}

func detectRuntime(dir string) (string, string, map[string]string, error) {
	data, err := os.ReadFile(filepath.Join(dir, "Pulumi.yaml"))
	if err != nil {
		return "", "", nil, fmt.Errorf("no Pulumi.yaml found in %s — is this a Pulumi project?", dir)
	}
	var p pulumiYAML
	if err := yaml.Unmarshal(data, &p); err != nil {
		return "", "", nil, fmt.Errorf("parsing Pulumi.yaml: %w", err)
	}
	if p.Runtime.name == "" {
		return "", "", nil, fmt.Errorf("Pulumi.yaml has no runtime field")
	}

	// Collect template config defaults (e.g. aws:region default: us-west-2).
	var templateDefaults map[string]string
	if p.Template != nil && len(p.Template.Config) > 0 {
		templateDefaults = make(map[string]string, len(p.Template.Config))
		for key, cfg := range p.Template.Config {
			if cfg.Default != "" {
				templateDefaults[key] = cfg.Default
			}
		}
	}

	return p.Runtime.name, p.Runtime.Options.Virtualenv, templateDefaults, nil
}

func detectPulumiProject(dir string) (pulumiProjectInfo, error) {
	runtime, venv, templateDefaults, err := detectRuntime(dir)