mirror of
https://github.com/flutter/flutter
synced 2024-10-16 05:02:57 +00:00
105 lines
4 KiB
Dart
105 lines
4 KiB
Dart
// 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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// Do not add package imports to this file.
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import 'dart:convert'; // ignore: dart_convert_import.
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import 'dart:io'; // ignore: dart_io_import.
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/// Executes the required flutter tasks for a desktop build.
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Future<void> main(List<String> arguments) async {
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final String targetPlatform = arguments[0];
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final String buildMode = arguments[1].toLowerCase();
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final String dartDefines = Platform.environment['DART_DEFINES'];
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final bool dartObfuscation = Platform.environment['DART_OBFUSCATION'] == 'true';
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final String extraFrontEndOptions = Platform.environment['EXTRA_FRONT_END_OPTIONS'];
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final String extraGenSnapshotOptions = Platform.environment['EXTRA_GEN_SNAPSHOT_OPTIONS'];
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final String flutterEngine = Platform.environment['FLUTTER_ENGINE'];
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final String flutterRoot = Platform.environment['FLUTTER_ROOT'];
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final String flutterTarget = Platform.environment['FLUTTER_TARGET']
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?? pathJoin(<String>['lib', 'main.dart']);
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final String localEngine = Platform.environment['LOCAL_ENGINE'];
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final String projectDirectory = Platform.environment['PROJECT_DIR'];
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final String splitDebugInfo = Platform.environment['SPLIT_DEBUG_INFO'];
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final String bundleSkSLPath = Platform.environment['BUNDLE_SKSL_PATH'];
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final bool trackWidgetCreation = Platform.environment['TRACK_WIDGET_CREATION'] == 'true';
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final bool treeShakeIcons = Platform.environment['TREE_SHAKE_ICONS'] == 'true';
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final bool verbose = Platform.environment['VERBOSE_SCRIPT_LOGGING'] == 'true';
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Directory.current = projectDirectory;
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if (localEngine != null && !localEngine.contains(buildMode)) {
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stderr.write('''
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ERROR: Requested build with Flutter local engine at '$localEngine'
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This engine is not compatible with FLUTTER_BUILD_MODE: '$buildMode'.
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You can fix this by updating the LOCAL_ENGINE environment variable, or
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by running:
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flutter build <platform> --local-engine=host_$buildMode
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or
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flutter build <platform> --local-engine=host_${buildMode}_unopt
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========================================================================
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''');
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exit(1);
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}
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final String flutterExecutable = pathJoin(<String>[
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flutterRoot,
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'bin',
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if (Platform.isWindows)
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'flutter.bat'
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else
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'flutter'
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]);
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final String bundlePlatform = targetPlatform == 'windows-x64' ? 'windows' : 'linux';
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final String target = '${buildMode}_bundle_${bundlePlatform}_assets';
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final Process assembleProcess = await Process.start(
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flutterExecutable,
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<String>[
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if (verbose)
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'--verbose',
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if (flutterEngine != null) '--local-engine-src-path=$flutterEngine',
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if (localEngine != null) '--local-engine=$localEngine',
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'assemble',
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'--output=build',
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'-dTargetPlatform=$targetPlatform',
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'-dTrackWidgetCreation=$trackWidgetCreation',
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'-dBuildMode=$buildMode',
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'-dTargetFile=$flutterTarget',
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'-dTreeShakeIcons="$treeShakeIcons"',
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'-dDartObfuscation=$dartObfuscation',
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if (bundleSkSLPath != null)
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'-iBundleSkSLPath=$bundleSkSLPath',
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if (splitDebugInfo != null)
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'-dSplitDebugInfo=$splitDebugInfo',
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if (dartDefines != null)
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'--DartDefines=$dartDefines',
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if (extraGenSnapshotOptions != null)
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'--ExtraGenSnapshotOptions=$extraGenSnapshotOptions',
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if (extraFrontEndOptions != null)
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'--ExtraFrontEndOptions=$extraFrontEndOptions',
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target,
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],
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);
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assembleProcess.stdout
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.transform(utf8.decoder)
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.transform(const LineSplitter())
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.listen(stdout.writeln);
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assembleProcess.stderr
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.transform(utf8.decoder)
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.transform(const LineSplitter())
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.listen(stderr.writeln);
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if (await assembleProcess.exitCode != 0) {
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exit(1);
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}
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}
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/// Perform a simple path join on the segments based on the current platform.
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///
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/// Does not normalize paths that have repeated separators.
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String pathJoin(List<String> segments) {
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final String separator = Platform.isWindows ? r'\' : '/';
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return segments.join(separator);
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}
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