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| 1 | +// Copyright 2013 The Flutter Authors. All rights reserved. |
| 2 | +// Use of this source code is governed by a BSD-style license that can be |
| 3 | +// found in the LICENSE file. |
| 4 | + |
| 5 | +import 'dart:async'; |
| 6 | +import 'dart:io'; |
| 7 | + |
| 8 | +import 'package:args/args.dart'; |
| 9 | +import 'package:crypto/crypto.dart'; |
| 10 | + |
| 11 | +import 'package:vm/kernel_front_end.dart' |
| 12 | + show createCompilerArgParser, runCompiler, successExitCode; |
| 13 | + |
| 14 | +final ArgParser _argParser = createCompilerArgParser() |
| 15 | + ..addFlag('train', |
| 16 | + help: 'Run through sample command line to produce snapshot', |
| 17 | + negatable: false) |
| 18 | + ..addOption('component-name', help: 'Name of the component') |
| 19 | + ..addOption('data-dir', |
| 20 | + help: 'Name of the subdirectory of //data for output files') |
| 21 | + ..addOption('manifest', help: 'Path to output Fuchsia package manifest'); |
| 22 | + |
| 23 | +String _usage = ''' |
| 24 | +Usage: compiler [options] input.dart |
| 25 | +
|
| 26 | +Options: |
| 27 | +${_argParser.usage} |
| 28 | +'''; |
| 29 | + |
| 30 | +Future<void> main(List<String> args) async { |
| 31 | + ArgResults options; |
| 32 | + |
| 33 | + try { |
| 34 | + options = _argParser.parse(args); |
| 35 | + |
| 36 | + if (options['train']) { |
| 37 | + final Directory temp = |
| 38 | + Directory.systemTemp.createTempSync('train_kernel_compiler'); |
| 39 | + try { |
| 40 | + options = _argParser.parse(<String>[ |
| 41 | + '--manifest=flutter', |
| 42 | + '--data-dir=${temp.absolute}', |
| 43 | + ]); |
| 44 | + |
| 45 | + await runCompiler(options, _usage); |
| 46 | + return; |
| 47 | + } finally { |
| 48 | + temp.deleteSync(recursive: true); |
| 49 | + } |
| 50 | + } |
| 51 | + |
| 52 | + if (!options.rest.isNotEmpty) { |
| 53 | + throw Exception('Must specify input.dart'); |
| 54 | + } |
| 55 | + } on Exception catch (error) { |
| 56 | + print('ERROR: $error\n'); |
| 57 | + print(_usage); |
| 58 | + exitCode = 1; |
| 59 | + return; |
| 60 | + } |
| 61 | + |
| 62 | + final compilerExitCode = await runCompiler(options, _usage); |
| 63 | + if (compilerExitCode != successExitCode) { |
| 64 | + exitCode = compilerExitCode; |
| 65 | + return; |
| 66 | + } |
| 67 | + |
| 68 | + final String output = options['output']; |
| 69 | + final String dataDir = options.options.contains('component-name') |
| 70 | + ? options['component-name'] |
| 71 | + : options['data-dir']; |
| 72 | + final String manifestFilename = options['manifest']; |
| 73 | + |
| 74 | + if (manifestFilename != null) { |
| 75 | + await createManifest(manifestFilename, dataDir, output); |
| 76 | + } |
| 77 | +} |
| 78 | + |
| 79 | +Future createManifest( |
| 80 | + String packageManifestFilename, String dataDir, String output) async { |
| 81 | + List<String> packages = await File('$output-packages').readAsLines(); |
| 82 | + |
| 83 | + // Make sure the 'main' package is the last (convention with package loader). |
| 84 | + packages.remove('main'); |
| 85 | + packages.add('main'); |
| 86 | + |
| 87 | + final IOSink packageManifest = File(packageManifestFilename).openWrite(); |
| 88 | + |
| 89 | + final String kernelListFilename = '$packageManifestFilename.dilplist'; |
| 90 | + final IOSink kernelList = File(kernelListFilename).openWrite(); |
| 91 | + for (String package in packages) { |
| 92 | + final String filenameInPackage = '$package.dilp'; |
| 93 | + final String filenameInBuild = '$output-$package.dilp'; |
| 94 | + packageManifest |
| 95 | + .write('data/$dataDir/$filenameInPackage=$filenameInBuild\n'); |
| 96 | + kernelList.write('$filenameInPackage\n'); |
| 97 | + } |
| 98 | + await kernelList.close(); |
| 99 | + |
| 100 | + final String frameworkVersionFilename = |
| 101 | + '$packageManifestFilename.frameworkversion'; |
| 102 | + final IOSink frameworkVersion = File(frameworkVersionFilename).openWrite(); |
| 103 | + for (String package in [ |
| 104 | + 'collection', |
| 105 | + 'flutter', |
| 106 | + 'meta', |
| 107 | + 'typed_data', |
| 108 | + 'vector_math' |
| 109 | + ]) { |
| 110 | + Digest digest; |
| 111 | + if (packages.contains(package)) { |
| 112 | + final filenameInBuild = '$output-$package.dilp'; |
| 113 | + final bytes = await File(filenameInBuild).readAsBytes(); |
| 114 | + digest = sha256.convert(bytes); |
| 115 | + } |
| 116 | + frameworkVersion.write('$package=$digest\n'); |
| 117 | + } |
| 118 | + await frameworkVersion.close(); |
| 119 | + |
| 120 | + packageManifest.write('data/$dataDir/app.dilplist=$kernelListFilename\n'); |
| 121 | + packageManifest |
| 122 | + .write('data/$dataDir/app.frameworkversion=$frameworkVersionFilename\n'); |
| 123 | + await packageManifest.close(); |
| 124 | +} |
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