getLatestVersion function

Future<String> getLatestVersion(String channelOrVersion)

Get the latest version, either from direct version string or channel lookup.

Implementation

Future<String> getLatestVersion(String channelOrVersion) async {
  // Direct version — match internal format too
  if (RegExp(r'^v?\d+\.\d+\.\d+(-\S+)?$').hasMatch(channelOrVersion)) {
    final normalized = channelOrVersion.startsWith('v')
        ? channelOrVersion.substring(1)
        : channelOrVersion;
    // 99.99.x is reserved for CI smoke-test fixtures
    if (RegExp(r'^99\.99\.').hasMatch(normalized)) {
      throw Exception(
        'Version $normalized is not available for installation. Use \'stable\' or \'latest\'.',
      );
    }
    return normalized;
  }

  // ReleaseChannel validation
  if (channelOrVersion != 'stable' && channelOrVersion != 'latest') {
    throw Exception(
      'Invalid channel: $channelOrVersion. Use \'stable\' or \'latest\'',
    );
  }

  // Use GCS for downloads
  return getLatestVersionFromBinaryRepo(
    channel: channelOrVersion,
    baseUrl: gcsBucketUrl,
  );
}