build method

@override FutureOr<void> build(BuildStep buildStep)

Generates the outputs for a given BuildStep.

Implementation

@override
FutureOr<void> build(BuildStep buildStep) async {
  final scope = (config.scopes).whereType<String?>().firstWhere(
        (element) =>
            element != null && Glob(element).matches(buildStep.inputId.path),
        orElse: () => null,
      );
  if (scope == null) {
    return;
  }
  final assets = buildStep.findAssets(Glob(scope));
  final assetsPathGlob = Glob(config.assetsPath);
  final parseResource = await buildStep.fetchResource(_graphqlParserResource);
  final entries = await assets
      .where((asset) => assetsPathGlob.matches(asset.path))
      .asyncMap(
        (event) async => MapEntry(
          event,
          await parseResource.readFile(buildStep, event),
        ),
      )
      .map(
        (event) => MapEntry(
          event.key,
          transform.transform(
            config,
            event.value,
          ),
        ),
      )
      .toList();
  final result = generate<AssetId>(
    buildStep.inputId,
    SchemaConfig<AssetId>(
      entries: BuiltMap.of(Map.fromEntries(entries)),
      lookupPath: (id) => _resolveOutputDir(
        p.dirname(id.path),
        p.basename(id.path) + ".dart",
      ),
    ),
    config,
  );
  final targetAsset = buildStep.inputId.addExtension('.dart');
  _writeProgram(
    config,
    buildStep,
    AssetId(
      targetAsset.package,
      _resolveOutputDir(
        p.dirname(targetAsset.path),
        p.basename(targetAsset.path),
      ),
    ),
    result,
  );
}