Function JSONFile

internal/cachehash/hash.go:62–75

JSONFile compacts the JSON in a file and returns its hex-encoded hash.

(path string)

// JSONFile compacts the JSON in a file and returns its hex-encoded hash.
func JSONFile(path string) (string, error) {
	b, err := os.ReadFile(path)
	if errors.Is(err, os.ErrNotExist) {
		return "", nil
	}
	if err != nil {
		return "", err
	}
	buf := &bytes.Buffer{}
	if err := json.Compact(buf, b); err != nil {
		return "", redact.Errorf("compact json for hashing: %v", err)
	}
	return Bytes(buf.Bytes()), nil
}

func newHash() hash.Hash { return sha256.New() }