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Build sky_engine Dart SDK summary bundle on FlutterEngine.download(). (#5460)

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This commit is contained in:
Konstantin Scheglov 2016-08-17 13:01:19 -07:00 committed by GitHub
parent 0892f6a503
commit d3fd8ddd6f
2 changed files with 103 additions and 4 deletions
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31
packages/flutter_tools/lib/src/cache.dart
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@ -5,6 +5,8 @@
import 'dart:async';
import 'dart:io';
import 'package:flutter_tools/src/dart/pub.dart';
import 'package:flutter_tools/src/dart/summary.dart';
import 'package:path/path.dart' as path;
import 'base/context.dart';
@ -236,13 +238,17 @@ class MaterialFonts {
}
class FlutterEngine {
FlutterEngine(this.cache);
static const String kName = 'engine';
static const String kSkyEngine = 'sky_engine';
static const String kSkyServices = 'sky_services';
static const String kSdkBundle = 'sdk.ds';
final Cache cache;
List<String> _getPackageDirs() => <String>['sky_engine', 'sky_services'];
List<String> _getPackageDirs() => const <String>[kSkyEngine, kSkyServices];
List<String> _getEngineDirs() {
List<String> dirs = <String>[
@ -292,11 +298,17 @@ class FlutterEngine {
bool isUpToDate() {
Directory pkgDir = cache.getCacheDir('pkg');
for (String pkgName in _getPackageDirs()) {
Directory dir = new Directory(path.join(pkgDir.path, pkgName));
if (!dir.existsSync())
String pkgPath = path.join(pkgDir.path, pkgName);
String dotPackagesPath = path.join(pkgPath, '.packages');
if (!new Directory(pkgPath).existsSync())
return false;
if (!new File(dotPackagesPath).existsSync())
return false;
}
if (!new File(path.join(pkgDir.path, kSkyEngine, kSdkBundle)).existsSync())
return false;
Directory engineDir = cache.getArtifactDirectory(kName);
for (String dirName in _getEngineDirs()) {
Directory dir = new Directory(path.join(engineDir.path, dirName));
@ -319,10 +331,21 @@ class FlutterEngine {
Directory pkgDir = cache.getCacheDir('pkg');
for (String pkgName in _getPackageDirs()) {
Directory dir = new Directory(path.join(pkgDir.path, pkgName));
String pkgPath = path.join(pkgDir.path, pkgName);
Directory dir = new Directory(pkgPath);
if (dir.existsSync())
dir.deleteSync(recursive: true);
await _downloadItem('Downloading package $pkgName...', url + pkgName + '.zip', pkgDir);
await pubGet(directory: pkgPath);
}
Status summaryStatus = logger.startProgress('Building Dart SDK summary...');
try {
String skyEnginePath = path.join(pkgDir.path, kSkyEngine);
String skyServicesPath = path.join(pkgDir.path, kSkyServices);
buildSkyEngineSdkSummary(skyEnginePath, skyServicesPath, kSdkBundle);
} finally {
summaryStatus.stop(showElapsedTime: true);
}
Directory engineDir = cache.getArtifactDirectory(kName);

76
packages/flutter_tools/lib/src/dart/summary.dart Normal file
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@ -0,0 +1,76 @@
import 'dart:io' as io;
import 'package:analyzer/file_system/file_system.dart';
import 'package:analyzer/file_system/physical_file_system.dart';
import 'package:analyzer/source/sdk_ext.dart';
import 'package:analyzer/src/context/builder.dart'; // ignore: implementation_imports
import 'package:analyzer/src/dart/sdk/sdk.dart'; // ignore: implementation_imports
import 'package:analyzer/src/generated/engine.dart'; // ignore: implementation_imports
import 'package:analyzer/src/generated/source.dart'; // ignore: implementation_imports
import 'package:analyzer/src/summary/summary_file_builder.dart'; // ignore: implementation_imports
import 'package:flutter_tools/src/globals.dart';
import 'package:package_config/packages.dart';
import 'package:path/path.dart' as pathos;
import 'package:yaml/src/yaml_node.dart'; // ignore: implementation_imports
/// Given the [skyEnginePath] and [skyServicesPath], locate corresponding
/// `_embedder.yaml` and `_sdkext`, compose the full embedded Dart SDK, and
/// build the [outBundleName] file with its linked summary.
void buildSkyEngineSdkSummary(
String skyEnginePath, String skyServicesPath, String outBundleName) {
ResourceProvider resourceProvider = PhysicalResourceProvider.INSTANCE;
ContextBuilder builder = new ContextBuilder(resourceProvider, null, null);
Packages packages = builder.createPackageMap(skyServicesPath);
Map<String, List<Folder>> packageMap = builder.convertPackagesToMap(packages);
if (packageMap == null) {
printError('The expected .packages was not found in $skyServicesPath.');
return;
}
packageMap['sky_engine'] = <Folder>[
resourceProvider.getFolder(pathos.join(skyEnginePath, 'lib'))
];
//
// Read the `_embedder.yaml` file.
//
EmbedderYamlLocator yamlLocator = new EmbedderYamlLocator(packageMap);
Map<Folder, YamlMap> embedderYamls = yamlLocator.embedderYamls;
if (embedderYamls.length != 1) {
printError('Exactly one _embedder.yaml was expected in $packageMap, '
'but $embedderYamls found.');
return;
}
//
// Read the `_sdkext` file.
//
SdkExtUriResolver extResolver = new SdkExtUriResolver(packageMap);
Map<String, String> urlMappings = extResolver.urlMappings;
if (embedderYamls.length != 1) {
printError('Exactly one extension library was expected in $packageMap, '
'but $urlMappings found.');
return;
}
//
// Create the EmbedderSdk instance.
//
EmbedderSdk sdk = new EmbedderSdk(resourceProvider, embedderYamls);
sdk.addExtensions(urlMappings);
sdk.analysisOptions = new AnalysisOptionsImpl()..strongMode = true;
//
// Gather sources.
//
List<Source> sources = sdk.uris.map(sdk.mapDartUri).toList();
//
// Build.
//
SummaryBuildConfig config = new SummaryBuildConfig(strongMode: true);
BuilderOutput output =
new SummaryBuilder(sources, sdk.context, config).build();
String outputPath = pathos.join(skyEnginePath, outBundleName);
new io.File(outputPath).writeAsBytesSync(output.sum);
}