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add profile mode to flutter web applications (#39073)

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Jonah Williams 2019-08-23 08:47:01 -07:00 committed by GitHub
parent b2d19d2af5
commit b3014ff5c0
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 22 additions and 10 deletions
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24
packages/flutter_tools/lib/src/build_runner/build_script.dart
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@ -38,6 +38,8 @@ const String digestsEntrypointExtension = '.digests';
const String jsModuleErrorsExtension = '.ddc.js.errors';
const String jsModuleExtension = '.ddc.js';
const String jsSourceMapExtension = '.ddc.js.map';
const String kReleaseFlag = 'release';
const String kProfileFlag = 'profile';
final DartPlatform flutterWebPlatform =
DartPlatform.register('flutter_web', <String>[
@ -141,7 +143,8 @@ final List<core.BuilderApplication> builders = <core.BuilderApplication>[
'flutter_tools:entrypoint',
<BuilderFactory>[
(BuilderOptions options) => FlutterWebEntrypointBuilder(
options.config['release'] ?? false,
options.config[kReleaseFlag] ?? false,
options.config[kProfileFlag] ?? false,
options.config['flutterWebSdk'],
),
],
@ -201,9 +204,10 @@ class FlutterWebTestEntrypointBuilder implements Builder {
/// A ddc-only entrypoint builder that respects the Flutter target flag.
class FlutterWebEntrypointBuilder implements Builder {
const FlutterWebEntrypointBuilder(this.release, this.flutterWebSdk);
const FlutterWebEntrypointBuilder(this.release, this.profile, this.flutterWebSdk);
final bool release;
final bool profile;
final String flutterWebSdk;
@override
@ -219,8 +223,8 @@ class FlutterWebEntrypointBuilder implements Builder {
@override
Future<void> build(BuildStep buildStep) async {
if (release) {
await bootstrapDart2Js(buildStep, flutterWebSdk);
if (release || profile) {
await bootstrapDart2Js(buildStep, flutterWebSdk, profile);
} else {
await bootstrapDdc(buildStep, platform: flutterWebPlatform);
}
@ -366,7 +370,7 @@ Future<void> main() async {
};
}
Future<void> bootstrapDart2Js(BuildStep buildStep, String flutterWebSdk) async {
Future<void> bootstrapDart2Js(BuildStep buildStep, String flutterWebSdk, bool profile) async {
final AssetId dartEntrypointId = buildStep.inputId;
final AssetId moduleId = dartEntrypointId.changeExtension(moduleExtension(flutterWebPlatform));
final Module module = Module.fromJson(json.decode(await buildStep.readAsString(moduleId)));
@ -388,11 +392,17 @@ Future<void> bootstrapDart2Js(BuildStep buildStep, String flutterWebSdk) async {
final String librariesPath = path.join(flutterWebSdkPath, 'libraries.json');
final List<String> args = <String>[
'--libraries-spec="$librariesPath"',
'-O4',
if (profile)
'-O1'
else
'-O4',
'-o',
'$jsOutputPath',
'--packages="$packageFile"',
'-Ddart.vm.product=true',
if (profile)
'-Ddart.vm.profile=true'
else
'-Ddart.vm.product=true',
dartPath,
];
final Dart2JsBatchWorkerPool dart2js = await buildStep.fetchResource(dart2JsWorkerResource);

8
packages/flutter_tools/lib/src/build_runner/web_fs.dart
View File

@ -140,7 +140,7 @@ class WebFs {
}) async {
// Start the build daemon and run an initial build.
final BuildDaemonClient client = await buildDaemonCreator
.startBuildDaemon(fs.currentDirectory.path, release: buildInfo.isRelease);
.startBuildDaemon(fs.currentDirectory.path, release: buildInfo.isRelease, profile: buildInfo.isProfile);
client.startBuild();
// Only provide relevant build results
final Stream<BuildResult> filteredBuildResults = client.buildResults
@ -266,11 +266,12 @@ class BuildDaemonCreator {
const BuildDaemonCreator();
/// Start a build daemon and register the web targets.
Future<BuildDaemonClient> startBuildDaemon(String workingDirectory, {bool release = false}) async {
Future<BuildDaemonClient> startBuildDaemon(String workingDirectory, {bool release = false, bool profile = false }) async {
try {
final BuildDaemonClient client = await _connectClient(
workingDirectory,
release: release,
profile: profile,
);
_registerBuildTargets(client);
return client;
@ -297,7 +298,7 @@ class BuildDaemonCreator {
Future<BuildDaemonClient> _connectClient(
String workingDirectory,
{ bool release }
{ bool release, bool profile }
) {
final String flutterToolsPackages = fs.path.join(Cache.flutterRoot, 'packages', 'flutter_tools', '.packages');
final String buildScript = fs.path.join(Cache.flutterRoot, 'packages', 'flutter_tools', 'lib', 'src', 'build_runner', 'build_script.dart');
@ -316,6 +317,7 @@ class BuildDaemonCreator {
'--define', 'flutter_tools:ddc=flutterWebSdk=$flutterWebSdk',
'--define', 'flutter_tools:entrypoint=flutterWebSdk=$flutterWebSdk',
'--define', 'flutter_tools:entrypoint=release=$release',
'--define', 'flutter_tools:entrypoint=profile=$profile',
'--define', 'flutter_tools:shell=flutterWebSdk=$flutterWebSdk',
],
logHandler: (ServerLog serverLog) {