move and clean-up web_benchmarks package to flutter/packages (flutter…

…#232)

* move web_benchmarks package to flutter/packages + clean-up

.ci/Dockerfile

@@ -1,5 +1,5 @@
-# Last updated 4/8/2020 (to rebuild the docker image, update this timestamp)
-FROM cirrusci/flutter:latest
+# Last updated 10/22/2020 (to rebuild the docker image, update this timestamp)
+FROM cirrusci/flutter:stable-web
 
 RUN sudo apt-get update && \
     sudo apt-get upgrade --yes && \

.cirrus.yml

@@ -11,7 +11,7 @@ task:
   activate_script: pub global activate flutter_plugin_tools
   matrix:
     - name: analyze
-      script: ./script/incremental_build.sh analyze
+      script: ./script/incremental_build.sh analyze --custom-analysis=web_benchmarks/testing/test_app
     - name: publishable
       script: ./script/check_publish.sh
       depends_on:
@@ -31,6 +31,16 @@ task:
         - ./script/incremental_build.sh java-test  # must come after apk build
       depends_on:
         - analyze
+    - name: web_benchmarks_test
+      script:
+        - ./script/install_chromium.sh
+        - export CHROME_EXECUTABLE=$(pwd)/.chromium/chrome-linux/chrome
+        - flutter config --enable-web
+        - cd packages/web_benchmarks/testing/test_app
+        - flutter packages get
+        - cd ../..
+        - flutter packages get
+        - dart testing/web_benchmarks_test.dart
 
 task:
   use_compute_credits: $CIRRUS_USER_COLLABORATOR == 'true'

.gitignore

@@ -17,3 +17,9 @@ GeneratedPluginRegistrant.java
 *instrumentscli*.trace
 *.cipd
 
+# Build directories are produced when building using the Flutter CLI.
+build
+
+# This file is produced as a back-up when web_benchmarks fails to parse a
+# Chrome trace.
+chrome-trace.json

packages/web_benchmarks/CHANGELOG.md

@@ -0,0 +1,3 @@
+## 0.0.1 - Initial release.
+
+* Provide a benchmark server (host-side) and a benchmark client (browser-side).

packages/web_benchmarks/LICENSE

@@ -0,0 +1,27 @@
+Copyright 2019 The Chromium Authors. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the name of Google Inc. nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

packages/web_benchmarks/README.md

@@ -0,0 +1,15 @@
+# web_benchmarks
+
+A benchmark harness for Flutter Web apps. Currently only supports running
+benchmarks in Chrome.
+
+# Writing a benchmark
+
+An example benchmark can be found in [test/web_benchmark_test.dart][1].
+
+A web benchmark is made of two parts: a client and a server. The client is code
+that runs in the browser together with the benchmark code. The server serves the
+app's code and assets. Additionally, the server communicates with the browser to
+extract the performance traces.
+
+[1]: https://github.com/flutter/packages/blob/master/packages/web_benchmarks/test/web_benchmarks_test.dart