fuchsia_asset_builder.dart 3.48 KB
Newer Older
Ian Hickson's avatar
Ian Hickson committed
1
// Copyright 2014 The Flutter Authors. All rights reserved.
2 3 4 5
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import 'package:args/args.dart';
6
import 'package:flutter_tools/src/asset.dart' hide defaultManifestPath;
7
import 'package:flutter_tools/src/base/context.dart';
8 9 10 11 12
import 'package:flutter_tools/src/base/file_system.dart' as libfs;
import 'package:flutter_tools/src/base/io.dart';
import 'package:flutter_tools/src/cache.dart';
import 'package:flutter_tools/src/context_runner.dart';
import 'package:flutter_tools/src/devfs.dart';
13
import 'package:flutter_tools/src/bundle.dart';
14
import 'package:flutter_tools/src/globals.dart' as globals;
15
import 'package:flutter_tools/src/reporting/reporting.dart';
16 17

const String _kOptionPackages = 'packages';
18
const String _kOptionAsset = 'asset-dir';
19 20
const String _kOptionManifest = 'manifest';
const String _kOptionAssetManifestOut = 'asset-manifest-out';
21
const String _kOptionComponentName = 'component-name';
22
const List<String> _kRequiredOptions = <String>[
23
  _kOptionPackages,
24
  _kOptionAsset,
25
  _kOptionAssetManifestOut,
26
  _kOptionComponentName,
27 28
];

29 30
Future<void> main(List<String> args) {
  return runInContext<void>(() => run(args), overrides: <Type, Generator>{
31
    Usage: () => DisabledUsage(),
32
  });
33 34
}

35
Future<void> writeFile(libfs.File outputFile, DevFSContent content) async {
36
  outputFile.createSync(recursive: true);
37 38
  final List<int> data = await content.contentsAsBytes();
  outputFile.writeAsBytesSync(data);
39 40
}

41
Future<void> run(List<String> args) async {
42
  final ArgParser parser = ArgParser()
43
    ..addOption(_kOptionPackages, help: 'The .packages file')
44
    ..addOption(_kOptionAsset,
45 46
        help: 'The directory where to put temporary files')
    ..addOption(_kOptionManifest, help: 'The manifest file')
47 48
    ..addOption(_kOptionAssetManifestOut)
    ..addOption(_kOptionComponentName);
49 50 51
  final ArgResults argResults = parser.parse(args);
  if (_kRequiredOptions
      .any((String option) => !argResults.options.contains(option))) {
52
    globals.printError('Missing option! All options must be specified.');
53 54
    exit(1);
  }
55
  Cache.flutterRoot = globals.platform.environment['FLUTTER_ROOT'];
56

57
  final String assetDir = argResults[_kOptionAsset] as String;
58
  final AssetBundle assets = await buildAssets(
59
    manifestPath: argResults[_kOptionManifest] as String ?? defaultManifestPath,
60
    assetDirPath: assetDir,
61
    packagesPath: argResults[_kOptionPackages] as String,
62 63 64 65 66 67 68 69
    includeDefaultFonts: false,
  );

  if (assets == null) {
    print('Unable to find assets.');
    exit(1);
  }

70
  final List<Future<void>> calls = <Future<void>>[];
71
  assets.entries.forEach((String fileName, DevFSContent content) {
72
    final libfs.File outputFile = globals.fs.file(globals.fs.path.join(assetDir, fileName));
73
    calls.add(writeFile(outputFile, content));
74
  });
75
  await Future.wait<void>(calls);
76

77 78
  final String outputMan = argResults[_kOptionAssetManifestOut] as String;
  await writeFuchsiaManifest(assets, argResults[_kOptionAsset] as String, outputMan, argResults[_kOptionComponentName] as String);
79 80
}

81
Future<void> writeFuchsiaManifest(AssetBundle assets, String outputBase, String fileDest, String componentName) async {
82

83
  final libfs.File destFile = globals.fs.file(fileDest);
84 85 86
  await destFile.create(recursive: true);
  final libfs.IOSink outFile = destFile.openWrite();

87
  for (final String path in assets.entries.keys) {
88
    outFile.write('data/$componentName/$path=$outputBase/$path\n');
89 90 91 92
  }
  await outFile.flush();
  await outFile.close();
}