Function LoadValues

internal/chart/v3/loader/load.go:185–203

LoadValues loads values from a reader. The reader is expected to contain one or more YAML documents, the values of which are merged. And the values can be either a chart's default values or user-supplied values.

(data io.Reader)

// The reader is expected to contain one or more YAML documents, the values of which are merged.
// And the values can be either a chart's default values or user-supplied values.
func LoadValues(data io.Reader) (map[string]any, error) {
	values := map[string]any{}
	reader := utilyaml.NewYAMLReader(bufio.NewReader(data))
	for {
		currentMap := map[string]any{}
		raw, err := reader.Read()
		if err != nil {
			if errors.Is(err, io.EOF) {
				break
			}
			return nil, fmt.Errorf("error reading yaml document: %w", err)
		}
		if err := yaml.Unmarshal(raw, &currentMap); err != nil {
			return nil, fmt.Errorf("cannot unmarshal yaml document: %w", err)
		}
		values = MergeMaps(values, currentMap)
	}
	return values, nil
}

// MergeMaps merges two maps. If a key exists in both maps, the value from b will be used.
// If the value is a map, the maps will be merged recursively.