Rewrite build_pkgs.sh and build_test_pkgs.sh in Dart.

pkg/dev_compiler/tool/build_pkgs.dart

Index: pkg/dev_compiler/tool/build_pkgs.dart
diff --git a/pkg/dev_compiler/tool/build_pkgs.dart b/pkg/dev_compiler/tool/build_pkgs.dart
new file mode 100755
index 0000000000000000000000000000000000000000..83dbd9933c8cb0066b3afef4cc419a280c6bd2b2
--- /dev/null
+++ b/pkg/dev_compiler/tool/build_pkgs.dart
@@ -0,0 +1,104 @@
+#!/usr/bin/env dart
+import 'dart:io';
+
+import 'package:dev_compiler/src/compiler/command.dart';
+
+/// Compiles the packages that the DDC tests use to JS into:
+///
+/// gen/codegen_output/pkg/...
+///
+/// Assumes the working directory is pkg/dev_compiler.
+///
+/// If no arguments are passed, builds the all of the modules tested on Travis.
+/// If "test" is passed, only builds the modules needed by the tests.
+void main(List<String> arguments) {
+  var test = arguments.length == 1 && arguments[0] == 'test';
+
+  new Directory("gen/codegen_output/pkg").createSync(recursive: true);
+
+  // Build leaf packages. These have no other package dependencies.
+
+  // Under pkg.
+  compileModule('async_helper');
+  compileModule('expect', libs: ['minitest']);
+  compileModule('js', libs: ['js_util']);
+  if (!test) {
+    compileModule('lookup_map');
+    compileModule('meta');
+    compileModule('microlytics', libs: ['html_channels']);
+    compileModule('typed_mock');
+  }
+
+  // Under third_party/pkg.
+  compileModule('collection');
+  compileModule('matcher');
+  compileModule('path');
+  if (!test) {
+    compileModule('args', libs: ['command_runner']);
+    compileModule('charcode');
+    compileModule('fixnum');
+    compileModule('logging');
+    compileModule('markdown');
+    compileModule('mime');
+    compileModule('plugin', libs: ['manager']);
+    compileModule('typed_data');
+    compileModule('usage');
+    compileModule('utf');
+    compileModule('when');
+  }
+
+  // Composite packages with dependencies.
+  compileModule('stack_trace', deps: ['path']);
+  if (!test) {
+    compileModule('async', deps: ['collection']);
+  }
+
+  if (test) {
+    compileModule('unittest',
+        deps: ['matcher', 'path', 'stack_trace'],
+        libs: ['html_config', 'html_individual_config', 'html_enhanced_config'],
+        unsafeForceCompile: true);
+  }
+}
+
+/// Compiles a [module] with a single matching ".dart" library and additional
+/// [libs] and [deps] on other modules.
+void compileModule(String module,
+    {List<String> libs, List<String> deps, bool unsafeForceCompile: false}) {
+  var args = [
+    '--dart-sdk-summary=lib/sdk/ddc_sdk.sum',
+    '-ogen/codegen_output/pkg/$module.js'
+  ];
+
+  // There is always a library that matches the module.
+  args.add('package:$module/$module.dart');
+
+  // Add any additional libraries.
+  if (libs != null) {
+    for (var lib in libs) {
+      args.add('package:$module/$lib.dart');
+    }
+  }
+
+  // Add summaries for any modules this depends on.
+  if (deps != null) {
+    for (var dep in deps) {
+      args.add('-sgen/codegen_output/pkg/$dep.sum');
+    }
+  }
+
+  if (unsafeForceCompile) {
+    args.add('--unsafe-force-compile');
+  }
+
+  // TODO(rnystrom): Hack. DDC has its own forked copy of async_helper that
+  // has a couple of differences from pkg/async_helper. We should unfork them,
+  // but I'm not sure how they'll affect the other non-DDC tests. For now, just
+  // use ours.
+  if (module == 'async_helper') {
+    args.add('--url-mapping=package:async_helper/async_helper.dart,'
+      'test/codegen/async_helper.dart');
+  }
+
+  compile(args);
+}