chore(build): Make PRs 15m faster.

Don't precompile Dart2JS for pull requests, instead serve the dart
sources with pub serve. We were already testing with Dartium so
all we lose is some test coverage of defects exposed only by the
Dart2JS transpiler.
This still runs the dart transformer.

Fixes #3030

DEVELOPER.md

@@ -187,7 +187,7 @@ rights to built them in your operating system.
 ### E2E tests
 
 1. `$(npm bin)/gulp build.js.cjs` (builds benchpress and tests into `dist/js/cjs` folder).
-2. `$(npm bin)/gulp serve.js.prod serve.js.dart2js` (runs a local webserver).
+2. `$(npm bin)/gulp serve.js.prod serve.dart` (runs a local webserver).
 3. `$(npm bin)/protractor protractor-js.conf.js`: JS e2e tests.
 4. `$(npm bin)/protractor protractor-dart2js.conf.js`: dart2js e2e tests.
 
@@ -197,7 +197,7 @@ Angular specific command line options when running protractor:
 ### Performance tests
 
 1. `$(npm bin)/gulp build.js.cjs` (builds benchpress and tests into `dist/js/cjs` folder)
-2. `$(npm bin)/gulp serve.js.prod serve.js.dart2js` (runs a local webserver)
+2. `$(npm bin)/gulp serve.js.prod serve.dart` (runs a local webserver)
 3. `$(npm bin)/protractor protractor-js.conf.js --benchmark`: JS performance tests
 4. `$(npm bin)/protractor protractor-dart2js.conf.js --benchmark`: dart2js performance tests
 

gulpfile.js

@@ -150,7 +150,7 @@ var BENCHPRESS_BUNDLE_CONFIG = {
     'rx'
   ],
   dest: CONFIG.dest.benchpress_bundle
-}
+};
 
 // ------------
 // clean
@@ -245,6 +245,7 @@ gulp.task('build/analyze.dart', dartanalyzer(gulp, gulpPlugins, {
 
 // ------------
 // pubbuild
+// WARNING: this task is very slow (~15m as of July 2015)
 
 gulp.task('build/pubbuild.dart', pubbuild(gulp, gulpPlugins, {
   src: CONFIG.dest.dart,
@@ -330,6 +331,17 @@ function jsServeDartJs() {
   })();
 }
 
+function proxyServeDart() {
+  return jsserve(gulp, gulpPlugins, {
+    port: 8002,
+    proxies: [
+      {route: '/examples', url: 'http://localhost:8004'},
+      {route: '/benchmarks_external', url: 'http://localhost:8008'},
+      {route: '/benchmarks', url: 'http://localhost:8006'}
+    ]
+  })();
+}
+
 // ------------------
 // web servers
 gulp.task('serve.js.dev', ['build.js.dev'], function(neverDone) {
@@ -351,19 +363,33 @@ gulp.task('serve.e2e.prod', ['build.js.prod', 'build.js.cjs', 'build.css.materia
 
 gulp.task('serve.js.dart2js', jsServeDartJs);
 
+gulp.task('!proxyServeDart', proxyServeDart);
+
+gulp.task('serve.dart', function(done) {
+  runSequence([
+    '!proxyServeDart',
+    'serve/examples.dart',
+    'serve/benchmarks.dart',
+    'serve/benchmarks_external.dart'
+  ], done);
+});
+
 gulp.task('serve/examples.dart', pubserve(gulp, gulpPlugins, {
   command: DART_SDK.PUB,
-  path: CONFIG.dest.dart + '/examples'
+  path: CONFIG.dest.dart + '/examples',
+  port: 8004
 }));
 
 gulp.task('serve/benchmarks.dart', pubserve(gulp, gulpPlugins, {
   command: DART_SDK.PUB,
-  path: CONFIG.dest.dart + '/benchmarks'
+  path: CONFIG.dest.dart + '/benchmarks',
+  port: 8006
 }));
 
 gulp.task('serve/benchmarks_external.dart', pubserve(gulp, gulpPlugins, {
   command: DART_SDK.PUB,
-  path: CONFIG.dest.dart + '/benchmarks_external'
+  path: CONFIG.dest.dart + '/benchmarks_external',
+  port: 8008
 }));
 
 // --------------
@@ -751,7 +777,6 @@ gulp.task('build.dart', function(done) {
     'build/packages.dart',
     'build/pubspec.dart',
     'build/analyze.dart',
-    'build/pubbuild.dart',
     'build.dart.material.css',
     sequenceComplete(done)
   );

modules/benchmarks_external/src/compiler/compiler_benchmark.dart

@@ -56,33 +56,33 @@ createTemplate(String html) {
   return div;
 }
 
-@Directive(selector: '[dir0]', map: const {'attr0': '=>prop'})
+@Decorator(selector: '[dir0]', map: const {'attr0': '=>prop'})
 class Dir0 {
   Object prop;
 }
 
-@Directive(selector: '[dir1]', map: const {'attr1': '=>prop'})
+@Decorator(selector: '[dir1]', map: const {'attr1': '=>prop'})
 class Dir1 {
   Object prop;
 
   constructor(Dir0 dir0) {}
 }
 
-@Directive(selector: '[dir2]', map: const {'attr2': '=>prop'})
+@Decorator(selector: '[dir2]', map: const {'attr2': '=>prop'})
 class Dir2 {
   Object prop;
 
   constructor(Dir1 dir1) {}
 }
 
-@Directive(selector: '[dir3]', map: const {'attr3': '=>prop'})
+@Decorator(selector: '[dir3]', map: const {'attr3': '=>prop'})
 class Dir3 {
   Object prop;
 
   constructor(Dir2 dir2) {}
 }
 
-@Directive(selector: '[dir4]', map: const {'attr4': '=>prop'})
+@Decorator(selector: '[dir4]', map: const {'attr4': '=>prop'})
 class Dir4 {
   Object prop;
 

npm-shrinkwrap.clean.json

@@ -9382,6 +9382,9 @@
     "node-uuid": {
       "version": "1.4.3"
     },
+    "on-headers": {
+      "version": "1.0.0"
+    },
     "parse5": {
       "version": "1.3.2"
     },
@@ -9533,6 +9536,9 @@
         }
       }
     },
+    "proxy-middleware": {
+      "version": "0.13.0"
+    },
     "q": {
       "version": "1.3.0"
     },

npm-shrinkwrap.json

@@ -3355,7 +3355,7 @@
     },
     "clang-format": {
       "version": "1.0.28",
-      "from": "clang-format@1.0.28",
+      "from": "https://registry.npmjs.org/clang-format/-/clang-format-1.0.28.tgz",
       "resolved": "https://registry.npmjs.org/clang-format/-/clang-format-1.0.28.tgz",
       "dependencies": {
         "resolve": {
@@ -14506,6 +14506,11 @@
       "from": "https://registry.npmjs.org/node-uuid/-/node-uuid-1.4.3.tgz",
       "resolved": "https://registry.npmjs.org/node-uuid/-/node-uuid-1.4.3.tgz"
     },
+    "on-headers": {
+      "version": "1.0.0",
+      "from": "on-headers@*",
+      "resolved": "https://registry.npmjs.org/on-headers/-/on-headers-1.0.0.tgz"
+    },
     "parse5": {
       "version": "1.3.2",
       "from": "https://registry.npmjs.org/parse5/-/parse5-1.3.2.tgz",
@@ -14743,6 +14748,11 @@
         }
       }
     },
+    "proxy-middleware": {
+      "version": "0.13.0",
+      "from": "proxy-middleware@*",
+      "resolved": "https://registry.npmjs.org/proxy-middleware/-/proxy-middleware-0.13.0.tgz"
+    },
     "q": {
       "version": "1.3.0",
       "from": "https://registry.npmjs.org/q/-/q-1.3.0.tgz",
@@ -15390,29 +15400,29 @@
       "dependencies": {
         "source-map": {
           "version": "0.4.4",
-          "from": "source-map@>=0.4.2 <0.5.0",
+          "from": "https://registry.npmjs.org/source-map/-/source-map-0.4.4.tgz",
           "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.4.4.tgz",
           "dependencies": {
             "amdefine": {
               "version": "1.0.0",
-              "from": "amdefine@>=0.0.4",
+              "from": "https://registry.npmjs.org/amdefine/-/amdefine-1.0.0.tgz",
               "resolved": "https://registry.npmjs.org/amdefine/-/amdefine-1.0.0.tgz"
             }
           }
         },
         "source-map-support": {
           "version": "0.3.2",
-          "from": "source-map-support@>=0.3.1 <0.4.0",
+          "from": "https://registry.npmjs.org/source-map-support/-/source-map-support-0.3.2.tgz",
           "resolved": "https://registry.npmjs.org/source-map-support/-/source-map-support-0.3.2.tgz",
           "dependencies": {
             "source-map": {
               "version": "0.1.32",
-              "from": "source-map@0.1.32",
+              "from": "https://registry.npmjs.org/source-map/-/source-map-0.1.32.tgz",
               "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.1.32.tgz",
               "dependencies": {
                 "amdefine": {
                   "version": "1.0.0",
-                  "from": "amdefine@>=0.0.4",
+                  "from": "https://registry.npmjs.org/amdefine/-/amdefine-1.0.0.tgz",
                   "resolved": "https://registry.npmjs.org/amdefine/-/amdefine-1.0.0.tgz"
                 }
               }
@@ -15421,7 +15431,7 @@
         },
         "typescript": {
           "version": "1.5.3",
-          "from": "microsoft/TypeScript#release-1.5",
+          "from": "git://github.com/microsoft/TypeScript.git#a24aa6f57d281bafd3535f0f4c3f492364a8b4d6",
           "resolved": "git://github.com/microsoft/TypeScript.git#a24aa6f57d281bafd3535f0f4c3f492364a8b4d6"
         }
       }

package.json

@@ -103,8 +103,10 @@
     "mock-fs": "^2.5.0",
     "node-html-encoder": "0.0.2",
     "node-uuid": "1.4.x",
+    "on-headers": "^1.0.0",
     "parse5": "1.3.2",
     "protractor": "2.1.0",
+    "proxy-middleware": "^0.13.0",
     "q": "^1.0.1",
     "react": "^0.13.2",
     "rewire": "^2.3.3",

scripts/ci/test_e2e_dart.sh

@@ -12,8 +12,17 @@ function killServer () {
   kill $serverPid
 }
 
+# Serving pre-compiled dart JS takes an extra 15m.
+# So we do this only for post-commit testing.
+# Pull requests test with Dartium and pub serve
+if [ "${TRAVIS_PULL_REQUEST}" = "false" ]; then
+  ./node_modules/.bin/gulp build/pubbuild.dart
   ./node_modules/.bin/gulp serve.js.dart2js&
   serverPid=$!
+else
+  ./node_modules/.bin/gulp serve.dart&
+  serverPid=$!
+fi
 
 ./node_modules/.bin/gulp build.css.material&
 

scripts/ci/test_perf.sh

@@ -13,8 +13,17 @@ function killServer () {
   kill $serverPid
 }
 
+# Serving pre-compiled dart JS takes an extra 15m.
+# So we do this only for post-commit testing.
+# Pull requests test with Dartium and pub serve
+if [ "${TRAVIS_PULL_REQUEST}" = "false" ]; then
+  ./node_modules/.bin/gulp build/pubbuild.dart
   ./node_modules/.bin/gulp serve.js.prod serve.js.dart2js&
   serverPid=$!
+else
+  ./node_modules/.bin/gulp serve.js.prod serve.dart&
+  serverPid=$!
+fi
 
 trap killServer EXIT
 

scripts/ci/test_server_dart.sh

@@ -11,8 +11,17 @@ cd $SCRIPT_DIR/../..
 webdriverServerPid=$!
 ps -ef | grep webdriver-manager
 
+# Serving pre-compiled dart JS takes an extra 15m.
+# So we do this only for post-commit testing.
+# Pull requests test with Dartium and pub serve
+if [ "${TRAVIS_PULL_REQUEST}" = "false" ]; then
+  ./node_modules/.bin/gulp build/pubbuild.dart
   ./node_modules/.bin/gulp serve.js.dart2js&
   serverPid=$!
+else
+  ./node_modules/.bin/gulp serve.dart&
+  serverPid=$!
+fi
 
 function killAllServers () {
   kill $serverPid

tools/build/jsserve.js

@@ -1,3 +1,7 @@
+var onHeaders = require('on-headers');
+var proxy = require('proxy-middleware');
+var url = require('url');
+
 module.exports = function(gulp, plugins, config) {
   return function() {
     plugins.connect.server({
@@ -6,10 +10,31 @@ module.exports = function(gulp, plugins, config) {
       livereload: false,
       open: false,
       middleware: function(connect, opt) {
-        return [
-          connect.favicon()
-        ]
+        config.proxies = config.proxies || [];
+        var middlewares =
+            config.proxies.map(function(entry) { return makeProxy(entry.route, entry.url); });
+        middlewares.push(connect.favicon());
+        // pub serve can't give the right content-type header for jsonp requests
+        // so we must turn off Chromium strict MIME type checking
+        // see https://github.com/angular/angular/issues/3030#issuecomment-123453168
+        middlewares.unshift(stripHeader('x-content-type-options'));
+        return middlewares;
       }
     })();
   };
 };
+
+function makeProxy(route, urlParam) {
+  var options = url.parse(urlParam);
+  options.route = route;
+  return proxy(options);
+}
+
+function stripHeader(toStrip) {
+  return function(req, res, next) {
+    onHeaders(res, function onHeaders() {
+      res.removeHeader(toStrip);
+    });
+    next();
+  };
+}

tools/build/pubserve.js

@@ -3,11 +3,12 @@ var spawn = require('child_process').spawn;
 
 module.exports = function(gulp, plugins, config, module) {
   return function() {
+    config.port = config.port || 8080;
     var pubMode = config.mode || 'debug';
-    var pubArgs = ['serve', '--mode', pubMode];
+    var pubArgs = ['serve', '--mode', pubMode, '--port', config.port];
     return util.streamToPromise(spawn(config.command, pubArgs, {
-      cwd: config.path, stdio: 'inherit'
+      // pub serve is very spammy, and --verbosity flag doesn't fix it
+      cwd: config.path, stdio: 'ignore'
     }));
   };
 };
-