Precompile dependencies' executables for use with "pub run".

sdk/lib/_internal/pub/test/test_pub.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // 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.
 
 /// Test infrastructure for testing pub.
 ///
 /// Unlike typical unit tests, most pub tests are integration tests that stage
 /// some stuff on the file system, run pub, and then validate the results. This
 /// library provides an API to build tests like that.
 library test_pub;
@@ skipping 237 matching lines @@
 ///
 /// [pubspecs] is a list of unserialized pubspecs representing the packages to
 /// serve.
 ///
 /// If [replace] is false, subsequent calls to [servePackages] will add to the
 /// set of packages that are being served. Previous packages will continue to be
 /// served. Otherwise, the previous packages will no longer be served.
 ///
 /// If [contents] is given, its contents are added to every served
 /// package.
+///
+/// If [serveBarback] is true, the repo versions of barback and its dependencies
+/// will be served as well.
 void servePackages(List<Map> pubspecs, {bool replace: false,
-    Iterable<d.Descriptor> contents}) {
+    Iterable<d.Descriptor> contents, bool serveBarback: false}) {
   if (_servedPackages == null || _servedPackageDir == null) {
     _servedPackages = <String, List<Map>>{};
     _servedApiPackageDir = d.dir('packages', []);
     _servedPackageDir = d.dir('packages', []);
     serve([
       d.dir('api', [_servedApiPackageDir]),
       _servedPackageDir
     ]);
 
     currentSchedule.onComplete.schedule(() {
       _servedPackages = null;
       _servedApiPackageDir = null;
       _servedPackageDir = null;
     }, 'cleaning up served packages');
   }
 
   schedule(() {
     return awaitObject(pubspecs).then((resolvedPubspecs) {
       if (replace) _servedPackages.clear();
 
       for (var pubspec in resolvedPubspecs) {
         var name = pubspec['name'];
         var version = pubspec['version'];
         var versions = _servedPackages.putIfAbsent(name, () => []);
         versions.add(pubspec);
       }
 
+      var repoPackages = new Set();
+      if (serveBarback) {
+        _addPackage(name) {
+          if (_servedPackages.containsKey(name)) return;
+          repoPackages.add(name);
+
+          var pubspec = new Map.from(loadYaml(
+              readTextFile(path.join(repoRoot, 'pkg', name, 'pubspec.yaml'))));
+
+          // Remove any SDK constraints since we don't have a valid SDK version
+          // while testing.
+          pubspec.remove('environment');
+
+          _servedPackages[name] = [pubspec];
+          if (pubspec.containsKey('dependencies')) {
+            pubspec['dependencies'].keys.forEach(_addPackage);
+          }
+        }
+
+        _addPackage('barback');
+      }
+
       _servedApiPackageDir.contents.clear();
       _servedPackageDir.contents.clear();
       for (var name in _servedPackages.keys) {
         _servedApiPackageDir.contents.addAll([
           d.file('$name', JSON.encode({
             'name': name,
             'uploaders': ['nweiz@google.com'],
             'versions': _servedPackages[name].map(packageVersionApiMap).toList()
           })),
           d.dir(name, [
             d.dir('versions', _servedPackages[name].map((pubspec) {
               return d.file(pubspec['version'], JSON.encode(
                   packageVersionApiMap(pubspec, full: true)));
             }))
           ])
         ]);
 
         _servedPackageDir.contents.add(d.dir(name, [
           d.dir('versions', _servedPackages[name].map((pubspec) {
             var version = pubspec['version'];
 
+            if (repoPackages.contains(name)) {
+              return d.tar('$version.tar.gz', [
+                d.file('pubspec.yaml', JSON.encode(pubspec)),
+                new d.DirectoryDescriptor.fromFilesystem('lib',
+                    path.join(repoRoot, 'pkg', name, 'lib'))
+              ]);
+            }
+
             var archiveContents = [
                 d.file('pubspec.yaml', JSON.encode(pubspec)),
                 d.libDir(name, '$name $version')
             ];
 
             if (contents != null) {
               archiveContents.addAll(contents);
             }
 
             return d.tar('$version.tar.gz', archiveContents);
@@ skipping 722 matching lines @@
         _lastMatcher.matches(item.last, matchState);
   }
 
   Description describe(Description description) {
     return description.addAll("(", ", ", ")", [_firstMatcher, _lastMatcher]);
   }
 }
 
 /// A [StreamMatcher] that matches multiple lines of output.
 StreamMatcher emitsLines(String output) => inOrder(output.split("\n"));