Function Load

pkg/config/config.go:135–174

Load loads Finch's configuration from a YAML file and initializes default values.

(
	fs afero.Fs,
	cfgPath string,
	log flog.Logger,
	systemDeps LoadSystemDeps,
	mem fmemory.Memory,
	ecc command.Creator,
)

// Load loads Finch's configuration from a YAML file and initializes default values.
func Load(
	fs afero.Fs,
	cfgPath string,
	log flog.Logger,
	systemDeps LoadSystemDeps,
	mem fmemory.Memory,
	ecc command.Creator,
) (*Finch, error) {
	b, err := afero.ReadFile(fs, cfgPath)
	if err != nil {
		if errors.Is(err, afero.ErrFileNotFound) {
			log.Infof("Using default values due to missing config file at %q", cfgPath)
			defCfg := applyDefaults(&Finch{}, systemDeps, mem, ecc)
			if err := ensureConfigDir(fs, filepath.Dir(cfgPath), log); err != nil {
				return nil, fmt.Errorf("failed to ensure %q directory: %w", cfgPath, err)
			}
			if err := writeConfig(defCfg, fs, cfgPath); err != nil {
				log.Warnf("Could not save default values to %q: %w", cfgPath, err)
			}
			return defCfg, nil
		}
		return nil, fmt.Errorf("failed to read the config file: %w", err)
	}

	var cfg Finch
	if err := yaml.Unmarshal(b, &cfg); err != nil {
		return nil, fmt.Errorf("failed to unmarshal config file: %w", err)
	}

	defCfg := applyDefaults(&cfg, systemDeps, mem, ecc)
	if err := writeConfig(defCfg, fs, cfgPath); err != nil {
		return nil, err
	}

	if err := validate(defCfg, log, systemDeps, mem); err != nil {
		return nil, fmt.Errorf("failed to validate config file: %w", err)
	}

	return defCfg, nil
}