func readBuildSpec()

in make.go [58:74]


func readBuildSpec(filename string) (*archive.Spec, error) {
	if filename == "" {
		return nil, fmt.Errorf("no build spec file specified")
	}

	b, err := os.ReadFile(filename)
	if err != nil {
		return nil, err
	}

	var spec archive.Spec
	if err := json.Unmarshal(b, &spec); err != nil {
		return nil, err
	}

	return &spec, nil
}