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Implement size analyzer to unzip & parse APK and AOT size snapshot to generate analysis json (#62495)
* Implement size analyzer to unzip & parse APK and AOT size snapshot to generate analysis json
This commit is contained in:
Peter Lee
GitHub
parent
8663b3c4bf
commit
8b39af2ea7
370
packages/flutter_tools/lib/src/base/analyze_size.dart
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370
packages/flutter_tools/lib/src/base/analyze_size.dart
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// 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 'package:meta/meta.dart';
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import 'package:vm_snapshot_analysis/treemap.dart';
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import '../base/file_system.dart';
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import '../convert.dart';
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import 'logger.dart';
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import 'process.dart';
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import 'terminal.dart';
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/// A class to analyze APK and AOT snapshot and generate a breakdown of the data.
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class SizeAnalyzer {
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SizeAnalyzer({
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@required this.fileSystem,
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@required this.logger,
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@required this.processUtils,
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});
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final FileSystem fileSystem;
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final Logger logger;
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final ProcessUtils processUtils;
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static const String aotSnapshotFileName = 'aot-snapshot.json';
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static const int tableWidth = 80;
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/// Analyzes [apk] and [aotSnapshot] to output a [Map] object that includes
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/// the breakdown of the both files, where the breakdown of [aotSnapshot] is placed
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/// under 'lib/arm64-v8a/libapp.so'.
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///
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/// The [aotSnapshot] can be either instruction sizes snapshot or v8 snapshot.
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Future<Map<String, dynamic>> analyzeApkSizeAndAotSnapshot({
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@required File apk,
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@required File aotSnapshot,
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}) async {
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logger.printStatus('▒' * tableWidth);
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_printEntitySize(
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'${apk.basename} (total compressed)',
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byteSize: apk.lengthSync(),
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level: 0,
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showColor: false,
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);
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logger.printStatus('━' * tableWidth);
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final Directory tempApkContent = fileSystem.systemTempDirectory.createTempSync('flutter_tools.');
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// TODO(peterdjlee): Implement a way to unzip the APK for Windows. See issue #62603.
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String unzipOut;
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try {
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// TODO(peterdjlee): Use zipinfo instead of unzip.
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unzipOut = (await processUtils.run(<String>[
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'unzip',
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'-o',
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'-v',
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apk.path,
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'-d',
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tempApkContent.path
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])).stdout;
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} on Exception catch (e) {
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logger.printError(e.toString());
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} finally {
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// We just want the the stdout printout. We don't need the files.
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tempApkContent.deleteSync(recursive: true);
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}
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final _SymbolNode apkAnalysisRoot = _parseUnzipFile(unzipOut);
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// Convert an AOT snapshot file into a map.
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final Map<String, dynamic> processedAotSnapshotJson = treemapFromJson(
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json.decode(aotSnapshot.readAsStringSync()),
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);
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final _SymbolNode aotSnapshotJsonRoot = _parseAotSnapshot(processedAotSnapshotJson);
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for (final _SymbolNode firstLevelPath in apkAnalysisRoot.children) {
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_printEntitySize(
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firstLevelPath.name,
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byteSize: firstLevelPath.byteSize,
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level: 1,
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);
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// Print the expansion of lib directory to show more info for libapp.so.
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if (firstLevelPath.name == 'lib') {
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_printLibChildrenPaths(firstLevelPath, '', aotSnapshotJsonRoot);
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}
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}
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logger.printStatus('▒' * tableWidth);
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Map<String, dynamic> apkAnalysisJson = apkAnalysisRoot.toJson();
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apkAnalysisJson['type'] = 'apk';
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// TODO(peterdjlee): Add aot snapshot for all platforms.
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apkAnalysisJson = _addAotSnapshotDataToApkAnalysis(
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apkAnalysisJson: apkAnalysisJson,
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path: 'lib/arm64-v8a/libapp.so (Dart AOT)'.split('/'), // Pass in a list of paths by splitting with '/'.
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aotSnapshotJson: processedAotSnapshotJson,
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);
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return apkAnalysisJson;
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}
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// Expression to match 'Size' column to group 1 and 'Name' column to group 2.
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final RegExp _parseUnzipOutput = RegExp(r'^\s*\d+\s+[\w|:]+\s+(\d+)\s+.* (.+)$');
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// Parse the output of unzip -v which shows the zip's contents' compressed sizes.
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// Example output of unzip -v:
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// Length Method Size Cmpr Date Time CRC-32 Name
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// -------- ------ ------- ---- ---------- ----- -------- ----
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// 11708 Defl:N 2592 78% 00-00-1980 00:00 07733eef AndroidManifest.xml
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// 1399 Defl:N 1092 22% 00-00-1980 00:00 f53d952a META-INF/CERT.RSA
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// 46298 Defl:N 14530 69% 00-00-1980 00:00 17df02b8 META-INF/CERT.SF
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_SymbolNode _parseUnzipFile(String unzipOut) {
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final Map<List<String>, int> pathsToSize = <List<String>, int>{};
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// Parse each path into pathsToSize so that the key is a list of
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// path parts and the value is the size.
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// For example:
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// 'path/to/file' where file = 1500 => pathsToSize[['path', 'to', 'file']] = 1500
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for (final String line in const LineSplitter().convert(unzipOut)) {
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final RegExpMatch match = _parseUnzipOutput.firstMatch(line);
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if (match == null) {
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continue;
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}
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const int sizeGroupIndex = 1;
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const int nameGroupIndex = 2;
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pathsToSize[match.group(nameGroupIndex).split('/')] = int.parse(match.group(sizeGroupIndex));
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}
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final _SymbolNode rootNode = _SymbolNode('Root');
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_SymbolNode currentNode = rootNode;
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for (final List<String> paths in pathsToSize.keys) {
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for (final String path in paths) {
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_SymbolNode childWithPathAsName = currentNode.childByName(path);
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if (childWithPathAsName == null) {
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childWithPathAsName = _SymbolNode(path);
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if (path.endsWith('libapp.so')) {
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childWithPathAsName.name += ' (Dart AOT)';
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} else if (path.endsWith('libflutter.so')) {
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childWithPathAsName.name += ' (Flutter Engine)';
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}
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currentNode.addChild(childWithPathAsName);
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}
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childWithPathAsName.addSize(pathsToSize[paths]);
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currentNode = childWithPathAsName;
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}
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currentNode = rootNode;
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}
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return rootNode;
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}
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/// Prints all children paths for the lib/ directory in an APK.
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///
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/// A brief summary of aot snapshot is printed under 'lib/arm64-v8a/libapp.so'.
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void _printLibChildrenPaths(
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_SymbolNode currentNode,
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String totalPath,
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_SymbolNode aotSnapshotJsonRoot,
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) {
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totalPath += currentNode.name;
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if (currentNode.children.isNotEmpty && !currentNode.name.contains('libapp.so')) {
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for (final _SymbolNode child in currentNode.children) {
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_printLibChildrenPaths(child, '$totalPath/', aotSnapshotJsonRoot);
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}
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} else {
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// Print total path and size if currentNode does not have any chilren.
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_printEntitySize(totalPath, byteSize: currentNode.byteSize, level: 2);
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// We picked this file because arm64-v8a is likely the most popular
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// architecture. ther architecture sizes should be similar.
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const String libappPath = 'lib/arm64-v8a/libapp.so';
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// TODO(peterdjlee): Analyze aot size for all platforms.
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if (totalPath.contains(libappPath)) {
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_printAotSnapshotSummary(aotSnapshotJsonRoot);
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}
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}
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}
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/// Go through the AOT gen snapshot size JSON and print out a collapsed summary
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/// for the first package level.
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void _printAotSnapshotSummary(_SymbolNode aotSnapshotRoot, {int maxDirectoriesShown = 10}) {
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_printEntitySize(
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'Dart AOT symbols accounted decompressed size',
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byteSize: aotSnapshotRoot.byteSize,
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level: 3,
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);
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final List<_SymbolNode> sortedSymbols = aotSnapshotRoot.children.toList()
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..sort((_SymbolNode a, _SymbolNode b) => b.byteSize.compareTo(a.byteSize));
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for (final _SymbolNode node in sortedSymbols.take(maxDirectoriesShown)) {
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_printEntitySize(node.name, byteSize: node.byteSize, level: 4);
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}
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}
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/// Adds breakdown of aot snapshot data as the children of the node at the given path.
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Map<String, dynamic> _addAotSnapshotDataToApkAnalysis({
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@required Map<String, dynamic> apkAnalysisJson,
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@required List<String> path,
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@required Map<String, dynamic> aotSnapshotJson,
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}) {
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Map<String, dynamic> currentLevel = apkAnalysisJson;
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while (path.isNotEmpty) {
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final List<Map<String, dynamic>> children = currentLevel['children'] as List<Map<String, dynamic>>;
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final Map<String, dynamic> childWithPathAsName = children.firstWhere(
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(Map<String, dynamic> child) => child['n'] as String == path.first,
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);
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path.removeAt(0);
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currentLevel = childWithPathAsName;
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}
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currentLevel['children'] = aotSnapshotJson['children'];
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return apkAnalysisJson;
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}
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/// Print an entity's name with its size on the same line.
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void _printEntitySize(
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String entityName, {
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@required int byteSize,
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@required int level,
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bool showColor = true,
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}) {
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final bool emphasis = level <= 1;
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final String formattedSize = _prettyPrintBytes(byteSize);
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TerminalColor color = TerminalColor.green;
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if (formattedSize.endsWith('MB')) {
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color = TerminalColor.cyan;
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} else if (formattedSize.endsWith('KB')) {
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color = TerminalColor.yellow;
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}
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final int spaceInBetween = tableWidth - level * 2 - entityName.length - formattedSize.length;
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logger.printStatus(
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entityName + ' ' * spaceInBetween,
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newline: false,
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emphasis: emphasis,
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indent: level * 2,
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);
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logger.printStatus(formattedSize, color: showColor ? color : null);
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}
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String _prettyPrintBytes(int numBytes) {
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const int kB = 1024;
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const int mB = kB * 1024;
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if (numBytes < kB) {
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return '$numBytes B';
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} else if (numBytes < mB) {
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return '${(numBytes / kB).round()} KB';
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} else {
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return '${(numBytes / mB).round()} MB';
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}
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}
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_SymbolNode _parseAotSnapshot(Map<String, dynamic> aotSnapshotJson) {
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final bool isLeafNode = aotSnapshotJson['children'] == null;
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if (!isLeafNode) {
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return _buildNodeWithChildren(aotSnapshotJson);
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} else {
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// TODO(peterdjlee): Investigate why there are leaf nodes with size of null.
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final int byteSize = aotSnapshotJson['value'] as int;
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if (byteSize == null) {
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return null;
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}
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return _buildNode(aotSnapshotJson, byteSize);
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}
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}
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_SymbolNode _buildNode(
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Map<String, dynamic> aotSnapshotJson,
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int byteSize, {
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List<_SymbolNode> children = const <_SymbolNode>[],
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}) {
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final String name = aotSnapshotJson['n'] as String;
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final Map<String, _SymbolNode> childrenMap = <String, _SymbolNode>{};
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for (final _SymbolNode child in children) {
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childrenMap[child.name] = child;
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}
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return _SymbolNode(
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name,
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byteSize: byteSize,
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)..addAllChildren(children);
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}
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/// Builds a node by recursively building all of its children first
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/// in order to calculate the sum of its children's sizes.
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_SymbolNode _buildNodeWithChildren(Map<String, dynamic> aotSnapshotJson) {
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final List<dynamic> rawChildren = aotSnapshotJson['children'] as List<dynamic>;
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final List<_SymbolNode> symbolNodeChildren = <_SymbolNode>[];
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int totalByteSize = 0;
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// Given a child, build its subtree.
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for (final dynamic child in rawChildren) {
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final _SymbolNode childTreemapNode = _parseAotSnapshot(child as Map<String, dynamic>);
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symbolNodeChildren.add(childTreemapNode);
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totalByteSize += childTreemapNode.byteSize;
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}
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// If none of the children matched the diff tree type
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if (totalByteSize == 0) {
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return null;
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} else {
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return _buildNode(
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aotSnapshotJson,
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totalByteSize,
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children: symbolNodeChildren,
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);
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}
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}
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}
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/// A node class that represents a single symbol for AOT size snapshots.
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class _SymbolNode {
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_SymbolNode(
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this.name, {
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this.byteSize = 0,
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}) : assert(name != null),
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assert(byteSize != null),
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_children = <String, _SymbolNode>{};
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/// The human friendly identifier for this node.
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String name;
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int byteSize;
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void addSize(int sizeToBeAdded) {
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byteSize += sizeToBeAdded;
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}
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_SymbolNode get parent => _parent;
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_SymbolNode _parent;
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Iterable<_SymbolNode> get children => _children.values;
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final Map<String, _SymbolNode> _children;
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_SymbolNode childByName(String name) => _children[name];
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_SymbolNode addChild(_SymbolNode child) {
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assert(child.parent == null);
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assert(!_children.containsKey(child.name),
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'Cannot add duplicate child key ${child.name}');
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child._parent = this;
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_children[child.name] = child;
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return child;
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}
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void addAllChildren(List<_SymbolNode> children) {
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children.forEach(addChild);
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}
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Map<String, dynamic> toJson() {
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final Map<String, dynamic> json = <String, dynamic>{
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'n': name,
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'value': byteSize
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};
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final List<Map<String, dynamic>> childrenAsJson = <Map<String, dynamic>>[];
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for (final _SymbolNode child in children) {
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childrenAsJson.add(child.toJson());
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}
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if (childrenAsJson.isNotEmpty) {
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json['children'] = childrenAsJson;
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}
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return json;
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}
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}
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@ -0,0 +1,167 @@
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// 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 'package:file/memory.dart';
|
||||||
|
import 'package:flutter_tools/src/base/analyze_size.dart';
|
||||||
|
import 'package:flutter_tools/src/base/file_system.dart';
|
||||||
|
import 'package:flutter_tools/src/base/logger.dart';
|
||||||
|
import 'package:flutter_tools/src/base/process.dart';
|
||||||
|
|
||||||
|
import '../../src/common.dart';
|
||||||
|
import '../../src/context.dart';
|
||||||
|
|
||||||
|
const FakeCommand unzipCommmand = FakeCommand(
|
||||||
|
command: <String>[
|
||||||
|
'unzip',
|
||||||
|
'-o',
|
||||||
|
'-v',
|
||||||
|
'test.apk',
|
||||||
|
'-d',
|
||||||
|
'/.tmp_rand0/flutter_tools.rand0'
|
||||||
|
],
|
||||||
|
stdout: '''
|
||||||
|
Length Method Size Cmpr Date Time CRC-32 Name
|
||||||
|
-------- ------ ------- ---- ---------- ----- -------- ----
|
||||||
|
11708 Defl:N 2592 78% 00-00-1980 00:00 07733eef AndroidManifest.xml
|
||||||
|
1399 Defl:N 1092 22% 00-00-1980 00:00 f53d952a META-INF/CERT.RSA
|
||||||
|
46298 Defl:N 14530 69% 00-00-1980 00:00 17df02b8 META-INF/CERT.SF
|
||||||
|
46298 Defl:N 14530 69% 00-00-1980 00:00 17df02b8 lib/arm64-v8a/libapp.so
|
||||||
|
46298 Defl:N 14530 69% 00-00-1980 00:00 17df02b8 lib/arm64-v8a/libflutter.so
|
||||||
|
''',
|
||||||
|
);
|
||||||
|
|
||||||
|
const String aotSizeOutput = '''[
|
||||||
|
{
|
||||||
|
"l": "dart:_internal",
|
||||||
|
"c": "SubListIterable",
|
||||||
|
"n": "[Optimized] skip",
|
||||||
|
"s": 2400
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"l": "dart:_internal",
|
||||||
|
"c": "SubListIterable",
|
||||||
|
"n": "[Optimized] new SubListIterable.",
|
||||||
|
"s": 3560
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"l": "dart:core",
|
||||||
|
"c": "RangeError",
|
||||||
|
"n": "[Optimized] new RangeError.range",
|
||||||
|
"s": 3920
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"l": "dart:core",
|
||||||
|
"c": "ArgumentError",
|
||||||
|
"n": "[Stub] Allocate ArgumentError",
|
||||||
|
"s": 4650
|
||||||
|
}
|
||||||
|
]
|
||||||
|
''';
|
||||||
|
|
||||||
|
void main() {
|
||||||
|
MemoryFileSystem fileSystem;
|
||||||
|
BufferLogger logger;
|
||||||
|
FakeProcessManager processManager;
|
||||||
|
|
||||||
|
setUp(() {
|
||||||
|
fileSystem = MemoryFileSystem.test();
|
||||||
|
logger = BufferLogger.test();
|
||||||
|
processManager = FakeProcessManager.list(<FakeCommand>[unzipCommmand]);
|
||||||
|
});
|
||||||
|
|
||||||
|
test('builds APK analysis correctly', () async {
|
||||||
|
final SizeAnalyzer sizeAnalyzer = SizeAnalyzer(
|
||||||
|
fileSystem: fileSystem,
|
||||||
|
logger: logger,
|
||||||
|
processUtils: ProcessUtils(
|
||||||
|
processManager: processManager,
|
||||||
|
logger: logger,
|
||||||
|
),
|
||||||
|
);
|
||||||
|
|
||||||
|
final File apk = fileSystem.file('test.apk')..createSync();
|
||||||
|
final File aotSizeJson = fileSystem.file('test.json')
|
||||||
|
..createSync()
|
||||||
|
..writeAsStringSync(aotSizeOutput);
|
||||||
|
final Map<String, dynamic> result = await sizeAnalyzer.analyzeApkSizeAndAotSnapshot(apk: apk, aotSnapshot: aotSizeJson);
|
||||||
|
|
||||||
|
expect(result['type'], contains('apk'));
|
||||||
|
|
||||||
|
final Map<String, dynamic> androidManifestMap = result['children'][0] as Map<String, dynamic>;
|
||||||
|
expect(androidManifestMap['n'], equals('AndroidManifest.xml'));
|
||||||
|
expect(androidManifestMap['value'], equals(2592));
|
||||||
|
|
||||||
|
final Map<String, dynamic> metaInfMap = result['children'][1] as Map<String, dynamic>;
|
||||||
|
expect(metaInfMap['n'], equals('META-INF'));
|
||||||
|
expect(metaInfMap['value'], equals(15622));
|
||||||
|
final Map<String, dynamic> certRsaMap = metaInfMap['children'][0] as Map<String, dynamic>;
|
||||||
|
expect(certRsaMap['n'], equals('CERT.RSA'));
|
||||||
|
expect(certRsaMap['value'], equals(1092));
|
||||||
|
final Map<String, dynamic> certSfMap = metaInfMap['children'][1] as Map<String, dynamic>;
|
||||||
|
expect(certSfMap['n'], equals('CERT.SF'));
|
||||||
|
expect(certSfMap['value'], equals(14530));
|
||||||
|
|
||||||
|
final Map<String, dynamic> libMap = result['children'][2] as Map<String, dynamic>;
|
||||||
|
expect(libMap['n'], equals('lib'));
|
||||||
|
expect(libMap['value'], equals(29060));
|
||||||
|
final Map<String, dynamic> arm64Map = libMap['children'][0] as Map<String, dynamic>;
|
||||||
|
expect(arm64Map['n'], equals('arm64-v8a'));
|
||||||
|
expect(arm64Map['value'], equals(29060));
|
||||||
|
final Map<String, dynamic> libAppMap = arm64Map['children'][0] as Map<String, dynamic>;
|
||||||
|
expect(libAppMap['n'], equals('libapp.so (Dart AOT)'));
|
||||||
|
expect(libAppMap['value'], equals(14530));
|
||||||
|
expect(libAppMap['children'].length, equals(3));
|
||||||
|
final Map<String, dynamic> internalMap = libAppMap['children'][0] as Map<String, dynamic>;
|
||||||
|
final Map<String, dynamic> skipMap = internalMap['children'][0] as Map<String, dynamic>;
|
||||||
|
expect(skipMap['n'], 'skip');
|
||||||
|
expect(skipMap['value'], 2400);
|
||||||
|
final Map<String, dynamic> subListIterableMap = internalMap['children'][1] as Map<String, dynamic>;
|
||||||
|
expect(subListIterableMap['n'], 'new SubListIterable.');
|
||||||
|
expect(subListIterableMap['value'], 3560);
|
||||||
|
final Map<String, dynamic> coreMap = libAppMap['children'][1] as Map<String, dynamic>;
|
||||||
|
final Map<String, dynamic> rangeErrorMap = coreMap['children'][0] as Map<String, dynamic>;
|
||||||
|
expect(rangeErrorMap['n'], 'new RangeError.range');
|
||||||
|
expect(rangeErrorMap['value'], 3920);
|
||||||
|
final Map<String, dynamic> stubsMap = libAppMap['children'][2] as Map<String, dynamic>;
|
||||||
|
final Map<String, dynamic> allocateMap = stubsMap['children'][0] as Map<String, dynamic>;
|
||||||
|
expect(allocateMap['n'], 'Allocate ArgumentError');
|
||||||
|
expect(allocateMap['value'], 4650);
|
||||||
|
final Map<String, dynamic> libFlutterMap = arm64Map['children'][1] as Map<String, dynamic>;
|
||||||
|
expect(libFlutterMap['n'], equals('libflutter.so (Flutter Engine)'));
|
||||||
|
expect(libFlutterMap['value'], equals(14530));
|
||||||
|
});
|
||||||
|
|
||||||
|
test('outputs summary to command line correctly', () async {
|
||||||
|
final SizeAnalyzer sizeAnalyzer = SizeAnalyzer(
|
||||||
|
fileSystem: fileSystem,
|
||||||
|
logger: logger,
|
||||||
|
processUtils: ProcessUtils(
|
||||||
|
processManager: processManager,
|
||||||
|
logger: logger,
|
||||||
|
),
|
||||||
|
);
|
||||||
|
|
||||||
|
final File apk = fileSystem.file('test.apk')..createSync();
|
||||||
|
final File aotSizeJson = fileSystem.file('test.json')
|
||||||
|
..createSync()
|
||||||
|
..writeAsStringSync(aotSizeOutput);
|
||||||
|
await sizeAnalyzer.analyzeApkSizeAndAotSnapshot(apk: apk, aotSnapshot: aotSizeJson);
|
||||||
|
|
||||||
|
final List<String> stdout = logger.statusText.split('\n');
|
||||||
|
expect(
|
||||||
|
stdout,
|
||||||
|
containsAll(<String>[
|
||||||
|
' AndroidManifest.xml 3 KB',
|
||||||
|
' META-INF 15 KB',
|
||||||
|
' lib 28 KB',
|
||||||
|
' lib/arm64-v8a/libapp.so (Dart AOT) 14 KB',
|
||||||
|
' Dart AOT symbols accounted decompressed size 14 KB',
|
||||||
|
' dart:_internal/SubListIterable 6 KB',
|
||||||
|
' @stubs/allocation-stubs/dart:core/ArgumentError 5 KB',
|
||||||
|
' dart:core/RangeError 4 KB',
|
||||||
|
' lib/arm64-v8a/libflutter.so (Flutter Engine) 14 KB',
|
||||||
|
]),
|
||||||
|
);
|
||||||
|
});
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue
Block a user