
o7 Removes the legacy scenec logic from flutter_tool. We removed scenec from the engine/shipped artifacts long ago. Originally added in https://github.com/flutter/flutter/pull/118157. This has since been replaced by [flutter_scene_importer](https://pub.dev/packages/flutter_scene_importer/versions)!
772 lines
27 KiB
Dart
772 lines
27 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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import 'dart:async';
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import 'package:package_config/package_config.dart';
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import 'package:process/process.dart';
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import 'package:vm_service/vm_service.dart' as vm_service;
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import 'artifacts.dart';
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import 'asset.dart';
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import 'base/config.dart';
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import 'base/context.dart';
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import 'base/file_system.dart';
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import 'base/io.dart';
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import 'base/logger.dart';
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import 'base/net.dart';
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import 'base/os.dart';
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import 'build_info.dart';
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import 'build_system/tools/asset_transformer.dart';
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import 'build_system/tools/shader_compiler.dart';
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import 'compile.dart';
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import 'convert.dart' show base64, utf8;
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import 'vmservice.dart';
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const String _kFontManifest = 'FontManifest.json';
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class DevFSConfig {
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/// Should DevFS assume that symlink targets are stable?
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bool cacheSymlinks = false;
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/// Should DevFS assume that there are no symlinks to directories?
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bool noDirectorySymlinks = false;
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}
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DevFSConfig? get devFSConfig => context.get<DevFSConfig>();
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/// Common superclass for content copied to the device.
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abstract class DevFSContent {
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/// Return true if this is the first time this method is called
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/// or if the entry has been modified since this method was last called.
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bool get isModified;
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/// Return true if this is the first time this method is called
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/// or if the entry has been modified after the given time
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/// or if the given time is null.
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bool isModifiedAfter(DateTime time);
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int get size;
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Future<List<int>> contentsAsBytes();
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Stream<List<int>> contentsAsStream();
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Stream<List<int>> contentsAsCompressedStream(OperatingSystemUtils osUtils) {
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return osUtils.gzipLevel1Stream(contentsAsStream());
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}
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}
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// File content to be copied to the device.
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class DevFSFileContent extends DevFSContent {
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DevFSFileContent(this.file);
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final FileSystemEntity file;
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File? _linkTarget;
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FileStat? _fileStat;
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File _getFile() {
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final File? linkTarget = _linkTarget;
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if (linkTarget != null) {
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return linkTarget;
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}
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if (file is Link) {
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// The link target.
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return file.fileSystem.file(file.resolveSymbolicLinksSync());
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}
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return file as File;
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}
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void _stat() {
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final File? linkTarget = _linkTarget;
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if (linkTarget != null) {
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// Stat the cached symlink target.
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final FileStat fileStat = linkTarget.statSync();
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if (fileStat.type == FileSystemEntityType.notFound) {
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_linkTarget = null;
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} else {
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_fileStat = fileStat;
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return;
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}
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}
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final FileStat fileStat = file.statSync();
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_fileStat = fileStat.type == FileSystemEntityType.notFound ? null : fileStat;
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if (_fileStat != null && _fileStat?.type == FileSystemEntityType.link) {
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// Resolve, stat, and maybe cache the symlink target.
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final String resolved = file.resolveSymbolicLinksSync();
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final File linkTarget = file.fileSystem.file(resolved);
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// Stat the link target.
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final FileStat fileStat = linkTarget.statSync();
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if (fileStat.type == FileSystemEntityType.notFound) {
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_fileStat = null;
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_linkTarget = null;
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} else if (devFSConfig?.cacheSymlinks ?? false) {
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_linkTarget = linkTarget;
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}
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}
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}
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@override
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bool get isModified {
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final FileStat? oldFileStat = _fileStat;
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_stat();
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final FileStat? newFileStat = _fileStat;
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if (oldFileStat == null && newFileStat == null) {
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return false;
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}
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return oldFileStat == null ||
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newFileStat == null ||
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newFileStat.modified.isAfter(oldFileStat.modified);
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}
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@override
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bool isModifiedAfter(DateTime time) {
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final FileStat? oldFileStat = _fileStat;
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_stat();
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final FileStat? newFileStat = _fileStat;
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if (oldFileStat == null && newFileStat == null) {
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return false;
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}
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return oldFileStat == null || newFileStat == null || newFileStat.modified.isAfter(time);
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}
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@override
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int get size {
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if (_fileStat == null) {
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_stat();
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}
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// Can still be null if the file wasn't found.
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return _fileStat?.size ?? 0;
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}
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@override
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Future<List<int>> contentsAsBytes() async => _getFile().readAsBytes();
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@override
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Stream<List<int>> contentsAsStream() => _getFile().openRead();
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}
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/// Byte content to be copied to the device.
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class DevFSByteContent extends DevFSContent {
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DevFSByteContent(this._bytes);
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final List<int> _bytes;
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final DateTime _creationTime = DateTime.now();
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bool _isModified = true;
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List<int> get bytes => _bytes;
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/// Return true only once so that the content is written to the device only once.
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@override
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bool get isModified {
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final bool modified = _isModified;
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_isModified = false;
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return modified;
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}
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@override
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bool isModifiedAfter(DateTime time) {
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return _creationTime.isAfter(time);
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}
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@override
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int get size => _bytes.length;
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@override
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Future<List<int>> contentsAsBytes() async => _bytes;
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@override
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Stream<List<int>> contentsAsStream() => Stream<List<int>>.fromIterable(<List<int>>[_bytes]);
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}
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/// String content to be copied to the device.
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class DevFSStringContent extends DevFSByteContent {
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DevFSStringContent(String string) : _string = string, super(utf8.encode(string));
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final String _string;
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String get string => _string;
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}
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/// A string compressing DevFSContent.
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///
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/// A specialized DevFSContent similar to DevFSByteContent where the contents
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/// are the compressed bytes of a string. Its difference is that the original
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/// uncompressed string can be compared with directly without the indirection
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/// of a compute-expensive uncompress/decode and compress/encode to compare
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/// the strings.
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///
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/// The `hintString` parameter is a zlib dictionary hinting mechanism to suggest
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/// the most common string occurrences to potentially assist with compression.
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class DevFSStringCompressingBytesContent extends DevFSContent {
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DevFSStringCompressingBytesContent(this._string, {String? hintString})
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: _compressor = ZLibEncoder(
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dictionary: hintString == null ? null : utf8.encode(hintString),
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gzip: true,
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level: 9,
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);
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final String _string;
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final ZLibEncoder _compressor;
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final DateTime _creationTime = DateTime.now();
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bool _isModified = true;
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late final List<int> bytes = _compressor.convert(utf8.encode(_string));
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/// Return true only once so that the content is written to the device only once.
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@override
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bool get isModified {
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final bool modified = _isModified;
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_isModified = false;
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return modified;
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}
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@override
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bool isModifiedAfter(DateTime time) {
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return _creationTime.isAfter(time);
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}
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@override
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int get size => bytes.length;
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@override
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Future<List<int>> contentsAsBytes() async => bytes;
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@override
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Stream<List<int>> contentsAsStream() => Stream<List<int>>.value(bytes);
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/// This checks the source string with another string.
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bool equals(String string) => _string == string;
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}
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class DevFSException implements Exception {
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DevFSException(this.message, [this.error, this.stackTrace]);
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final String message;
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final dynamic error;
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final StackTrace? stackTrace;
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@override
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String toString() => 'DevFSException($message, $error, $stackTrace)';
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}
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/// Interface responsible for syncing asset files to a development device.
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abstract class DevFSWriter {
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/// Write the assets in [entries] to the target device.
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///
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/// The keys of the map are relative from the [baseUri].
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///
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/// Throws a [DevFSException] if the process fails to complete.
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Future<void> write(Map<Uri, DevFSContent> entries, Uri baseUri, DevFSWriter parent);
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}
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class _DevFSHttpWriter implements DevFSWriter {
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_DevFSHttpWriter(
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this.fsName,
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FlutterVmService serviceProtocol, {
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required OperatingSystemUtils osUtils,
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required HttpClient httpClient,
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required Logger logger,
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Duration? uploadRetryThrottle,
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}) : httpAddress = serviceProtocol.httpAddress,
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_client = httpClient,
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_osUtils = osUtils,
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_uploadRetryThrottle = uploadRetryThrottle,
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_logger = logger;
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final HttpClient _client;
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final OperatingSystemUtils _osUtils;
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final Logger _logger;
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final Duration? _uploadRetryThrottle;
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final String fsName;
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final Uri? httpAddress;
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// 3 was chosen to try to limit the variance in the time it takes to execute
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// `await request.close()` since there is a known bug in Dart where it doesn't
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// always return a status code in response to a PUT request:
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// https://github.com/dart-lang/sdk/issues/43525.
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static const int kMaxInFlight = 3;
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int _inFlight = 0;
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late Map<Uri, DevFSContent> _outstanding;
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late Completer<void> _completer;
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@override
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Future<void> write(Map<Uri, DevFSContent> entries, Uri devFSBase, [DevFSWriter? parent]) async {
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try {
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_client.maxConnectionsPerHost = kMaxInFlight;
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_completer = Completer<void>();
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_outstanding = Map<Uri, DevFSContent>.of(entries);
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_scheduleWrites();
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await _completer.future;
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} on SocketException catch (socketException, stackTrace) {
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_logger.printTrace('DevFS sync failed. Lost connection to device: $socketException');
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throw DevFSException('Lost connection to device.', socketException, stackTrace);
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} on Exception catch (exception, stackTrace) {
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_logger.printError('Could not update files on device: $exception');
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throw DevFSException('Sync failed', exception, stackTrace);
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}
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}
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void _scheduleWrites() {
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while ((_inFlight < kMaxInFlight) && (!_completer.isCompleted) && _outstanding.isNotEmpty) {
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final Uri deviceUri = _outstanding.keys.first;
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final DevFSContent content = _outstanding.remove(deviceUri)!;
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_startWrite(deviceUri, content, retry: 10);
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_inFlight += 1;
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}
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if ((_inFlight == 0) && (!_completer.isCompleted) && _outstanding.isEmpty) {
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_completer.complete();
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}
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}
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Future<void> _startWrite(Uri deviceUri, DevFSContent content, {int retry = 0}) async {
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while (true) {
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try {
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final HttpClientRequest request = await _client.putUrl(httpAddress!);
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request.headers.removeAll(HttpHeaders.acceptEncodingHeader);
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request.headers.add('dev_fs_name', fsName);
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request.headers.add('dev_fs_uri_b64', base64.encode(utf8.encode('$deviceUri')));
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final Stream<List<int>> contents = content.contentsAsCompressedStream(_osUtils);
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await request.addStream(contents);
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// Once the bug in Dart is solved we can remove the timeout
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// (https://github.com/dart-lang/sdk/issues/43525).
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try {
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final HttpClientResponse response = await request.close().timeout(
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const Duration(seconds: 60),
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);
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response.listen(
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(_) {},
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onError: (dynamic error) {
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_logger.printTrace('error: $error');
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},
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cancelOnError: true,
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);
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} on TimeoutException {
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request.abort();
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// This should throw "HttpException: Request has been aborted".
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await request.done;
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// Just to be safe we rethrow the TimeoutException.
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rethrow;
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}
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break;
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} on Exception catch (error, trace) {
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if (!_completer.isCompleted) {
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_logger.printTrace('Error writing "$deviceUri" to DevFS: $error');
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if (retry > 0) {
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retry--;
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_logger.printTrace('trying again in a few - $retry more attempts left');
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await Future<void>.delayed(_uploadRetryThrottle ?? const Duration(milliseconds: 500));
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continue;
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}
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_completer.completeError(error, trace);
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}
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}
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}
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_inFlight -= 1;
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_scheduleWrites();
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}
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}
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// Basic statistics for DevFS update operation.
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class UpdateFSReport {
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UpdateFSReport({
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bool success = false,
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int invalidatedSourcesCount = 0,
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int syncedBytes = 0,
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int scannedSourcesCount = 0,
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Duration compileDuration = Duration.zero,
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Duration transferDuration = Duration.zero,
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Duration findInvalidatedDuration = Duration.zero,
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}) : _success = success,
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_invalidatedSourcesCount = invalidatedSourcesCount,
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_syncedBytes = syncedBytes,
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_scannedSourcesCount = scannedSourcesCount,
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_compileDuration = compileDuration,
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_transferDuration = transferDuration,
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_findInvalidatedDuration = findInvalidatedDuration;
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bool get success => _success;
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int get invalidatedSourcesCount => _invalidatedSourcesCount;
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int get syncedBytes => _syncedBytes;
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int get scannedSourcesCount => _scannedSourcesCount;
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Duration get compileDuration => _compileDuration;
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Duration get transferDuration => _transferDuration;
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Duration get findInvalidatedDuration => _findInvalidatedDuration;
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bool _success;
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int _invalidatedSourcesCount;
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int _syncedBytes;
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int _scannedSourcesCount;
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Duration _compileDuration;
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Duration _transferDuration;
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Duration _findInvalidatedDuration;
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void incorporateResults(UpdateFSReport report) {
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if (!report._success) {
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_success = false;
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}
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_invalidatedSourcesCount += report._invalidatedSourcesCount;
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_syncedBytes += report._syncedBytes;
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_scannedSourcesCount += report._scannedSourcesCount;
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_compileDuration += report._compileDuration;
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_transferDuration += report._transferDuration;
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_findInvalidatedDuration += report._findInvalidatedDuration;
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}
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}
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class DevFS {
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/// Create a [DevFS] named [fsName] for the local files in [rootDirectory].
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///
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/// Failed uploads are retried after [uploadRetryThrottle] duration, defaults to 500ms.
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DevFS(
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FlutterVmService serviceProtocol,
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this.fsName,
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this.rootDirectory, {
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required OperatingSystemUtils osUtils,
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required Logger logger,
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required FileSystem fileSystem,
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required ProcessManager processManager,
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required Artifacts artifacts,
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required BuildMode buildMode,
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HttpClient? httpClient,
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Duration? uploadRetryThrottle,
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StopwatchFactory stopwatchFactory = const StopwatchFactory(),
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Config? config,
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}) : _vmService = serviceProtocol,
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_logger = logger,
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_fileSystem = fileSystem,
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_httpWriter = _DevFSHttpWriter(
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fsName,
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serviceProtocol,
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osUtils: osUtils,
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logger: logger,
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uploadRetryThrottle: uploadRetryThrottle,
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httpClient:
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httpClient ??
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((context.get<HttpClientFactory>() == null)
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? HttpClient()
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: context.get<HttpClientFactory>()!()),
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),
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_stopwatchFactory = stopwatchFactory,
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_config = config,
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_assetTransformer = DevelopmentAssetTransformer(
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transformer: AssetTransformer(
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processManager: processManager,
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fileSystem: fileSystem,
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dartBinaryPath: artifacts.getArtifactPath(Artifact.engineDartBinary),
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buildMode: buildMode,
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),
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fileSystem: fileSystem,
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logger: logger,
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);
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final FlutterVmService _vmService;
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final _DevFSHttpWriter _httpWriter;
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final Logger _logger;
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final FileSystem _fileSystem;
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final StopwatchFactory _stopwatchFactory;
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final Config? _config;
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final DevelopmentAssetTransformer _assetTransformer;
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final String fsName;
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final Directory rootDirectory;
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final Set<String> assetPathsToEvict = <String>{};
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final Set<String> shaderPathsToEvict = <String>{};
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// A flag to indicate whether we have called `setAssetDirectory` on the target device.
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bool hasSetAssetDirectory = false;
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/// Whether the font manifest was uploaded during [update].
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bool didUpdateFontManifest = false;
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List<Uri> sources = <Uri>[];
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DateTime? lastCompiled;
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DateTime? _previousCompiled;
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PackageConfig? lastPackageConfig;
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Uri? _baseUri;
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Uri? get baseUri => _baseUri;
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Uri deviceUriToHostUri(Uri deviceUri) {
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final String deviceUriString = deviceUri.toString();
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final String baseUriString = baseUri.toString();
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if (deviceUriString.startsWith(baseUriString)) {
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final String deviceUriSuffix = deviceUriString.substring(baseUriString.length);
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return rootDirectory.uri.resolve(deviceUriSuffix);
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}
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return deviceUri;
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}
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Future<Uri> create() async {
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_logger.printTrace('DevFS: Creating new filesystem on the device ($_baseUri)');
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try {
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final vm_service.Response response = await _vmService.createDevFS(fsName);
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_baseUri = Uri.parse(response.json!['uri'] as String);
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} on vm_service.RPCError catch (rpcException) {
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if (rpcException.code == vm_service.RPCErrorKind.kServiceDisappeared.code ||
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rpcException.message.contains('Service connection disposed')) {
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// This can happen if the device has been disconnected, so translate to
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// a DevFSException, which the caller will handle.
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throw DevFSException('Service disconnected', rpcException);
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}
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// 1001 is kFileSystemAlreadyExists in //dart/runtime/vm/json_stream.h
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if (rpcException.code != 1001) {
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// Other RPCErrors are unexpected. Rethrow so it will hit crash
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// logging.
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rethrow;
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}
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_logger.printTrace('DevFS: Creating failed. Destroying and trying again');
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await destroy();
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final vm_service.Response response = await _vmService.createDevFS(fsName);
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_baseUri = Uri.parse(response.json!['uri'] as String);
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}
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|
_logger.printTrace('DevFS: Created new filesystem on the device ($_baseUri)');
|
|
return _baseUri!;
|
|
}
|
|
|
|
Future<void> destroy() async {
|
|
_logger.printTrace('DevFS: Deleting filesystem on the device ($_baseUri)');
|
|
await _vmService.deleteDevFS(fsName);
|
|
_logger.printTrace('DevFS: Deleted filesystem on the device ($_baseUri)');
|
|
}
|
|
|
|
/// Mark the [lastCompiled] time to the previous successful compile.
|
|
///
|
|
/// Sometimes a hot reload will be rejected by the VM due to a change in the
|
|
/// structure of the code not supporting the hot reload. In these cases,
|
|
/// the best resolution is a hot restart. However, the resident runner
|
|
/// will not recognize this file as having been changed since the delta
|
|
/// will already have been accepted. Instead, reset the compile time so
|
|
/// that the last updated files are included in subsequent compilations until
|
|
/// a reload is accepted.
|
|
void resetLastCompiled() {
|
|
lastCompiled = _previousCompiled;
|
|
}
|
|
|
|
/// Updates files on the device.
|
|
///
|
|
/// Returns the number of bytes synced.
|
|
///
|
|
/// If [fullRestart] is true, assumes this is a hot restart instead of a hot
|
|
/// reload. If [resetCompiler] is true, sends a `reset` instruction to the
|
|
/// frontend server.
|
|
Future<UpdateFSReport> update({
|
|
required Uri mainUri,
|
|
required ResidentCompiler generator,
|
|
required bool trackWidgetCreation,
|
|
required String pathToReload,
|
|
required List<Uri> invalidatedFiles,
|
|
required PackageConfig packageConfig,
|
|
required String dillOutputPath,
|
|
required DevelopmentShaderCompiler shaderCompiler,
|
|
DevFSWriter? devFSWriter,
|
|
String? target,
|
|
AssetBundle? bundle,
|
|
bool bundleFirstUpload = false,
|
|
bool fullRestart = false,
|
|
bool resetCompiler = false,
|
|
File? dartPluginRegistrant,
|
|
}) async {
|
|
final DateTime candidateCompileTime = DateTime.now();
|
|
didUpdateFontManifest = false;
|
|
lastPackageConfig = packageConfig;
|
|
|
|
// Update modified files
|
|
final Map<Uri, DevFSContent> dirtyEntries = <Uri, DevFSContent>{};
|
|
final List<Future<void>> pendingAssetBuilds = <Future<void>>[];
|
|
bool assetBuildFailed = false;
|
|
int syncedBytes = 0;
|
|
if (resetCompiler) {
|
|
generator.reset();
|
|
}
|
|
// On a full restart, or on an initial compile for the attach based workflow,
|
|
// this will produce a full dill. Subsequent invocations will produce incremental
|
|
// dill files that depend on the invalidated files.
|
|
_logger.printTrace('Compiling dart to kernel with ${invalidatedFiles.length} updated files');
|
|
|
|
// Await the compiler response after checking if the bundle is updated. This allows the file
|
|
// stating to be done while waiting for the frontend_server response.
|
|
final Stopwatch compileTimer = _stopwatchFactory.createStopwatch('compile')..start();
|
|
final Future<CompilerOutput?> pendingCompilerOutput = generator
|
|
.recompile(
|
|
mainUri,
|
|
invalidatedFiles,
|
|
outputPath: dillOutputPath,
|
|
fs: _fileSystem,
|
|
projectRootPath: rootDirectory.path,
|
|
packageConfig: packageConfig,
|
|
checkDartPluginRegistry: true, // The entry point is assumed not to have changed.
|
|
dartPluginRegistrant: dartPluginRegistrant,
|
|
)
|
|
.then((CompilerOutput? result) {
|
|
compileTimer.stop();
|
|
return result;
|
|
});
|
|
|
|
if (bundle != null) {
|
|
// Mark processing of bundle started for testability of starting the compile
|
|
// before processing bundle.
|
|
_logger.printTrace('Processing bundle.');
|
|
// await null to give time for telling the compiler to compile.
|
|
await null;
|
|
|
|
// The tool writes the assets into the AssetBundle working dir so that they
|
|
// are in the same location in DevFS and the iOS simulator.
|
|
final String assetDirectory = getAssetBuildDirectory(_config, _fileSystem);
|
|
final String assetBuildDirPrefix = _asUriPath(assetDirectory);
|
|
bundle.entries.forEach((String archivePath, AssetBundleEntry entry) {
|
|
// If the content is backed by a real file, isModified will file stat and return true if
|
|
// it was modified since the last time this was called.
|
|
if (!entry.content.isModified || bundleFirstUpload) {
|
|
return;
|
|
}
|
|
// Modified shaders must be recompiled per-target platform.
|
|
final Uri deviceUri = _fileSystem.path.toUri(
|
|
_fileSystem.path.join(assetDirectory, archivePath),
|
|
);
|
|
if (deviceUri.path.startsWith(assetBuildDirPrefix)) {
|
|
archivePath = deviceUri.path.substring(assetBuildDirPrefix.length);
|
|
}
|
|
// If the font manifest is updated, mark this as true so the hot runner
|
|
// can invoke a service extension to force the engine to reload fonts.
|
|
if (archivePath == _kFontManifest) {
|
|
didUpdateFontManifest = true;
|
|
}
|
|
final AssetKind? kind = bundle.entries[archivePath]?.kind;
|
|
switch (kind) {
|
|
case AssetKind.shader:
|
|
final Future<DevFSContent?> pending = shaderCompiler.recompileShader(entry.content);
|
|
pendingAssetBuilds.add(pending);
|
|
pending.then((DevFSContent? content) {
|
|
if (content == null) {
|
|
assetBuildFailed = true;
|
|
return;
|
|
}
|
|
dirtyEntries[deviceUri] = content;
|
|
syncedBytes += content.size;
|
|
if (!bundleFirstUpload) {
|
|
shaderPathsToEvict.add(archivePath);
|
|
}
|
|
});
|
|
case AssetKind.regular:
|
|
case AssetKind.font:
|
|
case null:
|
|
final Future<DevFSContent?> pending =
|
|
(() async {
|
|
if (entry.transformers.isEmpty || kind != AssetKind.regular) {
|
|
return entry.content;
|
|
}
|
|
return _assetTransformer.retransformAsset(
|
|
inputAssetKey: archivePath,
|
|
inputAssetContent: entry.content,
|
|
transformerEntries: entry.transformers,
|
|
workingDirectory: rootDirectory.path,
|
|
);
|
|
})();
|
|
|
|
pendingAssetBuilds.add(pending);
|
|
pending.then((DevFSContent? content) {
|
|
if (content == null) {
|
|
assetBuildFailed = true;
|
|
return;
|
|
}
|
|
dirtyEntries[deviceUri] = content;
|
|
syncedBytes += content.size;
|
|
if (!bundleFirstUpload) {
|
|
assetPathsToEvict.add(archivePath);
|
|
}
|
|
});
|
|
}
|
|
});
|
|
|
|
// Mark processing of bundle done for testability of starting the compile
|
|
// before processing bundle.
|
|
_logger.printTrace('Bundle processing done.');
|
|
}
|
|
final CompilerOutput? compilerOutput = await pendingCompilerOutput;
|
|
if (compilerOutput == null || compilerOutput.errorCount > 0) {
|
|
return UpdateFSReport();
|
|
}
|
|
// Only update the last compiled time if we successfully compiled.
|
|
_previousCompiled = lastCompiled;
|
|
lastCompiled = candidateCompileTime;
|
|
// list of sources that needs to be monitored are in [compilerOutput.sources]
|
|
sources = compilerOutput.sources;
|
|
//
|
|
// Don't send full kernel file that would overwrite what VM already
|
|
// started loading from.
|
|
if (!bundleFirstUpload) {
|
|
final String compiledBinary = compilerOutput.outputFilename;
|
|
if (compiledBinary.isNotEmpty) {
|
|
final Uri entryUri = _fileSystem.path.toUri(pathToReload);
|
|
final DevFSFileContent content = DevFSFileContent(_fileSystem.file(compiledBinary));
|
|
syncedBytes += content.size;
|
|
dirtyEntries[entryUri] = content;
|
|
}
|
|
}
|
|
_logger.printTrace('Updating files.');
|
|
final Stopwatch transferTimer = _stopwatchFactory.createStopwatch('transfer')..start();
|
|
|
|
await Future.wait(pendingAssetBuilds);
|
|
if (assetBuildFailed) {
|
|
return UpdateFSReport();
|
|
}
|
|
|
|
_logger.printTrace('Pending asset builds completed. Writing dirty entries.');
|
|
if (dirtyEntries.isNotEmpty) {
|
|
await (devFSWriter ?? _httpWriter).write(dirtyEntries, _baseUri!, _httpWriter);
|
|
}
|
|
transferTimer.stop();
|
|
_logger.printTrace('DevFS: Sync finished');
|
|
return UpdateFSReport(
|
|
success: true,
|
|
syncedBytes: syncedBytes,
|
|
invalidatedSourcesCount: invalidatedFiles.length,
|
|
compileDuration: compileTimer.elapsed,
|
|
transferDuration: transferTimer.elapsed,
|
|
);
|
|
}
|
|
|
|
/// Converts a platform-specific file path to a platform-independent URL path.
|
|
String _asUriPath(String filePath) => '${_fileSystem.path.toUri(filePath).path}/';
|
|
}
|
|
|
|
/// An implementation of a devFS writer which copies physical files for devices
|
|
/// running on the same host.
|
|
///
|
|
/// DevFS entries which correspond to physical files are copied using [File.copySync],
|
|
/// while entries that correspond to arbitrary string/byte values are written from
|
|
/// memory.
|
|
///
|
|
/// Requires that the file system is the same for both the tool and application.
|
|
class LocalDevFSWriter implements DevFSWriter {
|
|
LocalDevFSWriter({required FileSystem fileSystem}) : _fileSystem = fileSystem;
|
|
|
|
final FileSystem _fileSystem;
|
|
|
|
@override
|
|
Future<void> write(Map<Uri, DevFSContent> entries, Uri baseUri, [DevFSWriter? parent]) async {
|
|
try {
|
|
for (final MapEntry<Uri, DevFSContent> entry in entries.entries) {
|
|
final Uri uri = entry.key;
|
|
final DevFSContent devFSContent = entry.value;
|
|
final File destination = _fileSystem.file(baseUri.resolveUri(uri));
|
|
if (!destination.parent.existsSync()) {
|
|
destination.parent.createSync(recursive: true);
|
|
}
|
|
if (devFSContent is DevFSFileContent) {
|
|
final File content = devFSContent.file as File;
|
|
content.copySync(destination.path);
|
|
continue;
|
|
}
|
|
destination.writeAsBytesSync(await devFSContent.contentsAsBytes());
|
|
}
|
|
} on FileSystemException catch (err) {
|
|
throw DevFSException(err.toString());
|
|
}
|
|
}
|
|
}
|