resolve method

@override Future<ResolvedSource?> resolve(SourceResolutionContext context)

Try to resolve the source specification.

Returns a ResolvedSource if this provider can handle the specification, or null to skip to the next provider.

Implementation

@override
Future<ResolvedSource?> resolve(SourceResolutionContext context) async {
  final spec = context.specification;
  if (spec is! ArchiveSource) return null;

  final cacheDir = context.sourceCacheDirectory(key: spec.sha256);
  if (cacheDir.existsSync()) {
    logger?.info('Using cached archive source: ${spec.label}');
    return ResolvedSource(
      directory: _applySubdirectory(cacheDir, spec.subdirectory),
      origin: SourceOrigin.cache,
      revision: spec.sha256,
    );
  }

  logger?.info('Downloading source archive: ${spec.label}');
  await _downloadAndExtract(spec, cacheDir, logger: logger);

  return ResolvedSource(
    directory: _applySubdirectory(cacheDir, spec.subdirectory),
    origin: SourceOrigin.archive,
    revision: spec.sha256,
  );
}