Function optionalExpectedDigestFlag

internal/cli/authored_context.go:830–843

(cmd *cobra.Command, expectedDigest string, ifMatchDigest string)

}

func optionalExpectedDigestFlag(cmd *cobra.Command, expectedDigest string, ifMatchDigest string) (string, error) {
	expectedChanged := cmd.Flags().Changed("expected-digest")
	ifMatchChanged := cmd.Flags().Changed("if-match")
	if expectedChanged && ifMatchChanged {
		return "", errors.New("cli: use only one of --expected-digest or --if-match")
	}
	if ifMatchChanged {
		return strings.TrimSpace(ifMatchDigest), nil
	}
	if expectedChanged {
		return strings.TrimSpace(expectedDigest), nil
	}
	return "", nil
}

func changedExpectedDigestFlag(cmd *cobra.Command, expectedDigest string, ifMatchDigest string) (string, error) {
	digest, err := optionalExpectedDigestFlag(cmd, expectedDigest, ifMatchDigest)