Update to the latest build_runner. (#194)

* Update to the latest build_runner.

* Remove library directives.

Author: matanlurey

README.md

@@ -91,3 +91,13 @@ will be on a best-effort basis.
 [wiki]: https://github.com/dart-lang/code_builder/wiki
 [issue]: https://github.com/dart-lang/code_builder/issues
 [pull]: https://github.com/dart-lang/code_builder/pulls
+
+### Updating generated (`.g.dart`) files
+
+Use [`build_runner`][build_runner]:
+
+```bash
+$ pub run build_runner build --delete-conflicting-outputs
+```
+
+[build_runner]: https://pub.dartlang.org/packages/build_runner

build.yaml

@@ -0,0 +1,14 @@
+targets:
+  $default:
+    builders:
+      "|_built_value":
+
+builders:
+  _built_value:
+    target: ":code_builder"
+    import: "../../../tool/src/builder.dart"
+    builder_factories:
+      - "builtValueBuilder"
+    build_extensions:
+      ".dart": ".g.dart"
+    build_to: "source"

lib/src/specs/class.dart

@@ -2,8 +2,6 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-library code_builder.src.specs.class_;
-
 import 'package:built_value/built_value.dart';
 import 'package:built_collection/built_collection.dart';
 import 'package:meta/meta.dart';

lib/src/specs/class.g.dart

@@ -2,8 +2,6 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-library code_builder.src.specs.code;
-
 import 'package:built_value/built_value.dart';
 import 'package:built_collection/built_collection.dart';
 import 'package:meta/meta.dart';

lib/src/specs/code.dart

@@ -2,8 +2,6 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-library code_builder.src.specs.constructor;
-
 import 'package:built_value/built_value.dart';
 import 'package:built_collection/built_collection.dart';
 import 'package:meta/meta.dart';

lib/src/specs/code.g.dart

@@ -2,8 +2,6 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-library code_builder.src.specs.directive;
-
 import 'package:built_value/built_value.dart';
 import 'package:meta/meta.dart';