mirror of
https://github.com/flutter/flutter
synced 2024-10-13 19:52:53 +00:00
cb3dee79c5
* add an analysis_options excludes for the build/ dir * fix bots
196 lines
5.9 KiB
Dart
196 lines
5.9 KiB
Dart
// Copyright 2016 The Chromium 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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/// Make `n` copies of flutter_gallery.
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import 'dart:io';
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import 'package:args/args.dart';
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import 'package:path/path.dart' as path;
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/// If no `copies` param is passed in, we scale the generated app up to 60k lines.
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const int kTargetLineCount = 60 * 1024;
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void main(List<String> args) {
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// If we're run from the `tools` dir, set the cwd to the repo root.
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if (path.basename(Directory.current.path) == 'tools')
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Directory.current = Directory.current.parent.parent;
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final ArgParser argParser = ArgParser();
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argParser.addOption('out');
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argParser.addOption('copies');
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argParser.addFlag('delete', negatable: false);
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argParser.addFlag('help', abbr: 'h', negatable: false);
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final ArgResults results = argParser.parse(args);
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if (results['help']) {
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print('Generate n copies of flutter_gallery.\n');
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print('usage: dart mega_gallery.dart <options>');
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print(argParser.usage);
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exit(0);
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}
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final Directory source = Directory(_normalize('examples/flutter_gallery'));
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final Directory out = Directory(_normalize(results['out']));
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if (results['delete']) {
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if (out.existsSync()) {
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print('Deleting ${out.path}');
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out.deleteSync(recursive: true);
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}
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exit(0);
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}
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if (!results.wasParsed('out')) {
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print('The --out parameter is required.');
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print(argParser.usage);
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exit(1);
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}
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int copies;
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if (!results.wasParsed('copies')) {
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final SourceStats stats = getStatsFor(_dir(source, 'lib'));
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copies = (kTargetLineCount / stats.lines).round();
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} else {
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copies = int.parse(results['copies']);
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}
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print('Making $copies copies of flutter_gallery.');
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print('');
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print('Stats:');
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print(' packages/flutter : ${getStatsFor(Directory("packages/flutter"))}');
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print(' examples/flutter_gallery : ${getStatsFor(Directory("examples/flutter_gallery"))}');
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final Directory lib = _dir(out, 'lib');
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if (lib.existsSync())
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lib.deleteSync(recursive: true);
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// Copy everything that's not a symlink, dot directory, or build/.
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_copy(source, out);
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// Make n - 1 copies.
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for (int i = 1; i < copies; i++)
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_copyGallery(out, i);
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// Create a new entry-point.
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_createEntry(_file(out, 'lib/main.dart'), copies);
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// Update the pubspec.
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String pubspec = _file(out, 'pubspec.yaml').readAsStringSync();
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pubspec = pubspec.replaceAll('../../packages/flutter', '../../../packages/flutter');
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_file(out, 'pubspec.yaml').writeAsStringSync(pubspec);
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// Remove the (flutter_gallery specific) analysis_options.yaml file.
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_file(out, 'analysis_options.yaml').deleteSync();
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_file(out, '.dartignore').writeAsStringSync('');
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// Count source lines and number of files; tell how to run it.
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print(' ${path.relative(results["out"])} : ${getStatsFor(out)}');
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}
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// TODO(devoncarew): Create an entry-point that builds a UI with all `n` copies.
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void _createEntry(File mainFile, int copies) {
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final StringBuffer imports = StringBuffer();
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for (int i = 1; i < copies; i++) {
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imports.writeln('// ignore: unused_import');
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imports.writeln("import 'gallery_$i/main.dart' as main_$i;");
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}
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final String contents = '''
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// Copyright 2016 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:flutter/widgets.dart';
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import 'gallery/app.dart';
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${imports.toString().trim()}
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void main() {
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runApp(const GalleryApp());
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}
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''';
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mainFile.writeAsStringSync(contents);
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}
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void _copyGallery(Directory galleryDir, int index) {
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final Directory lib = _dir(galleryDir, 'lib');
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final Directory dest = _dir(lib, 'gallery_$index');
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dest.createSync();
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// Copy demo/, gallery/, and main.dart.
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_copy(_dir(lib, 'demo'), _dir(dest, 'demo'));
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_copy(_dir(lib, 'gallery'), _dir(dest, 'gallery'));
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_file(dest, 'main.dart').writeAsBytesSync(_file(lib, 'main.dart').readAsBytesSync());
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}
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void _copy(Directory source, Directory target) {
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if (!target.existsSync())
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target.createSync(recursive: true);
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for (FileSystemEntity entity in source.listSync(followLinks: false)) {
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final String name = path.basename(entity.path);
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if (entity is Directory) {
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if (name == 'build' || name.startsWith('.'))
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continue;
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_copy(entity, Directory(path.join(target.path, name)));
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} else if (entity is File) {
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if (name == '.packages' || name == 'pubspec.lock')
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continue;
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final File dest = File(path.join(target.path, name));
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dest.writeAsBytesSync(entity.readAsBytesSync());
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}
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}
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}
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Directory _dir(Directory parent, String name) => Directory(path.join(parent.path, name));
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File _file(Directory parent, String name) => File(path.join(parent.path, name));
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String _normalize(String filePath) => path.normalize(path.absolute(filePath));
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class SourceStats {
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int files = 0;
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int lines = 0;
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@override
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String toString() => '${_comma(files).padLeft(3)} files, ${_comma(lines).padLeft(6)} lines';
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}
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SourceStats getStatsFor(Directory dir, [SourceStats stats]) {
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stats ??= SourceStats();
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for (FileSystemEntity entity in dir.listSync(recursive: false, followLinks: false)) {
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final String name = path.basename(entity.path);
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if (entity is File && name.endsWith('.dart')) {
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stats.files += 1;
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stats.lines += _lineCount(entity);
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} else if (entity is Directory && !name.startsWith('.')) {
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getStatsFor(entity, stats);
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}
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}
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return stats;
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}
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int _lineCount(File file) {
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return file.readAsLinesSync().where((String line) {
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line = line.trim();
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if (line.isEmpty || line.startsWith('//'))
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return false;
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return true;
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}).length;
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}
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String _comma(int count) {
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final String str = count.toString();
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if (str.length > 3)
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return str.substring(0, str.length - 3) + ',' + str.substring(str.length - 3);
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return str;
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}
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