Function parseAnnotationConfig

config/config.go:1470–1504

parseAnnotationConfig parses a slice of strings in the "annotationKey=annotationValue=value" format by calling parseValue function to convert (annotationKey, annotationValue, value) tuple into T. Empty input strings are skipped and duplicate annotationKey-annotationValue pairs are rejected with erro

(kvvs []string, parseValue func(annotationKey, annotationValue, value string) (T, error))

// by calling parseValue function to convert (annotationKey, annotationValue, value) tuple into T.
// Empty input strings are skipped and duplicate annotationKey-annotationValue pairs are rejected with error.
func parseAnnotationConfig[T any](kvvs []string, parseValue func(annotationKey, annotationValue, value string) (T, error)) ([]T, error) {
	var result []T
	seenKVs := make(map[string]struct{})
	for _, kvv := range kvvs {
		if kvv == "" {
			continue
		}

		annotationKey, rest, found := strings.Cut(kvv, "=")
		if !found {
			return nil, fmt.Errorf("invalid annotation flag: %q, failed to get annotation key", kvv)
		}

		annotationValue, value, found := strings.Cut(rest, "=")
		if !found {
			return nil, fmt.Errorf("invalid annotation flag: %q, failed to get annotation value", kvv)
		}

		v, err := parseValue(annotationKey, annotationValue, value)
		if err != nil {
			return nil, fmt.Errorf("invalid annotation flag value: %q, %w", kvv, err)
		}

		// Reject duplicate annotation key-value pairs
		kv := annotationKey + "=" + annotationValue
		if _, ok := seenKVs[kv]; ok {
			return nil, fmt.Errorf("invalid annotation flag: %q, duplicate annotation key-value %q", kvv, kv)
		} else {
			seenKVs[kv] = struct{}{}
		}

		result = append(result, v)
	}
	return result, nil
}