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[benchmarks] Add time to development benchmark for Android (#46717)
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// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'dart:io';
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import 'package:flutter_devicelab/framework/adb.dart';
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import 'package:flutter_devicelab/framework/framework.dart';
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import 'package:flutter_devicelab/framework/utils.dart';
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import 'package:path/path.dart' as path;
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Future<void> main() async {
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deviceOperatingSystem = DeviceOperatingSystem.android;
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await task(createTimeToDevelopmentCommand);
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}
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final Directory flutterGalleryDir =
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dir(path.join(flutterDirectory.path, 'examples', 'flutter_gallery'));
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final Directory editedFlutterGalleryDir =
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dir(path.join(Directory.systemTemp.path, 'edited_flutter_gallery'));
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Future<TaskResult> createTimeToDevelopmentCommand() async {
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final Map<String, double> allResults = <String, double>{};
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bool failed = false;
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await inDirectory<void>(flutterDirectory, () async {
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rmTree(editedFlutterGalleryDir);
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mkdirs(editedFlutterGalleryDir);
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recursiveCopy(flutterGalleryDir, editedFlutterGalleryDir);
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await inDirectory<void>(editedFlutterGalleryDir, () async {
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final Device device = await devices.workingDevice;
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await device.unlock();
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final Stopwatch stopwatch = Stopwatch()..start();
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final Process initialBuild = await startProcess(
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path.join(flutterDirectory.path, 'bin', 'flutter'),
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<String>['run', '--debug', '-d', device.deviceId, '--no-resident',],
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);
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int exitCode = await initialBuild.exitCode;
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if (exitCode != 0) {
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failed = true;
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return;
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}
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final int initialBuildMilliseconds = stopwatch.elapsedMilliseconds;
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stopwatch
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..reset()
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..start();
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// Update a source file.
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final File appDartSource = file(path.join(
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editedFlutterGalleryDir.path,
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'lib/gallery/app.dart',
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));
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appDartSource.writeAsStringSync(
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appDartSource.readAsStringSync().replaceFirst(
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"'Flutter Gallery'",
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"'Updated Flutter Gallery'",
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),
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);
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final Process secondBuild = await startProcess(
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path.join(flutterDirectory.path, 'bin', 'flutter'),
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<String>['run', '--debug', '-d', device.deviceId, '--no-resident'],
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environment: null,
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);
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exitCode = await secondBuild.exitCode;
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if (exitCode != 0) {
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failed = true;
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return;
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}
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stopwatch.stop();
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allResults['time_to_development'] = initialBuildMilliseconds.toDouble();
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allResults['time_to_development_incremental'] =
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stopwatch.elapsedMilliseconds.toDouble();
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});
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});
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if (failed) {
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return TaskResult.failure('Failed to build debug app');
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}
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return TaskResult.success(allResults,
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benchmarkScoreKeys: allResults.keys.toList());
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}
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@ -382,6 +382,12 @@ tasks:
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stage: devicelab
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required_agent_capabilities: ["linux/android"]
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time_to_development_benchmark__android:
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description: >
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Measures time from flutter run until resident runner setup is complete.
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stage: devicelab
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required_agent_capabilities: ["linux/android"]
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# iOS on-device tests
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tiles_scroll_perf_ios__timeline_summary:
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