Function LoadConfigFromFile

repo/local_config.go:131–161

LoadConfigFromFile reads the local configuration from the specified file.

(fileName string)

// LoadConfigFromFile reads the local configuration from the specified file.
func LoadConfigFromFile(fileName string) (*LocalConfig, error) {
	f, err := os.Open(fileName) //nolint:gosec
	if err != nil {
		return nil, errors.Wrap(err, "error loading config file")
	}
	defer f.Close() //nolint:errcheck

	var lc LocalConfig

	if err := json.NewDecoder(f).Decode(&lc); err != nil {
		return nil, errors.Wrap(err, "error decoding config json")
	}

	// cache directory is stored as relative to config file name, resolve it to absolute.
	if lc.Caching != nil {
		if lc.Caching.CacheDirectory != "" && !ospath.IsAbs(lc.Caching.CacheDirectory) {
			lc.Caching.CacheDirectory = filepath.Join(filepath.Dir(fileName), lc.Caching.CacheDirectory)
		}

		// override cache directory from the environment variable.
		if cd := os.Getenv("KOPIA_CACHE_DIRECTORY"); cd != "" && ospath.IsAbs(cd) {
			lc.Caching.CacheDirectory = cd
		}
	}

	if lc.PermissiveCacheLoading && os.Getenv("KOPIA_UPGRADE_LOCK_ENABLED") == "" {
		return nil, errors.New("must have set KOPIA_UPGRADE_LOCK_ENABLED when connecting to repository with permissive cache loading")
	}

	return &lc, nil
}