192 lines
6.3 KiB
Dart
192 lines
6.3 KiB
Dart
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// import 'dart:convert';
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// import 'dart:io';
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//
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// import 'package:analyzer/dart/analysis/results.dart';
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// import 'package:analyzer/file_system/physical_file_system.dart';
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// import 'package:analyzer/src/dart/analysis/analysis_context_collection.dart';
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// import 'package:analyzer/src/dart/analysis/byte_store.dart';
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// import 'package:analyzer/src/dart/analysis/file_content_cache.dart';
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// import 'package:analyzer/src/dart/analysis/unlinked_unit_store.dart';
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//
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// void main() async {
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// // var path = '/Users/scheglov/dart/flutter_plugins/packages/camera';
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// // var path = '/Users/scheglov/dart/flutter_plugins/packages';
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// // var path = '/Users/scheglov/Source/Dart/sdk.git/sdk/pkg/analyzer';
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// var path = '/Users/scheglov/dart/test/bin/test.dart';
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//
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// while (true) {
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// var resourceProvider = PhysicalResourceProvider.INSTANCE;
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// var fileContentCache = FileContentCache(resourceProvider);
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// var unlinkedUnitStore = UnlinkedUnitStoreImpl();
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//
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// var collection = AnalysisContextCollectionImpl(
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// byteStore: MemoryByteStore(),
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// resourceProvider: resourceProvider,
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// fileContentCache: fileContentCache,
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// unlinkedUnitStore: unlinkedUnitStore,
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// sdkPath: '/Users/scheglov/Applications/dart-sdk',
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// // performanceLog: PerformanceLog(stdout),
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// includedPaths: [path],
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// // packagesFile:
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// // '/Users/scheglov/dart/flutter_plugins/packages/camera/camera/.dart_tool/package_config.json',
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// );
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//
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// // print('[Analysis contexts: ${collection.contexts.length}]');
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//
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// var timer = Stopwatch()..start();
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// for (var analysisContext in collection.contexts) {
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// // print(analysisContext.contextRoot.root.path);
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// for (var filePath in analysisContext.contextRoot.analyzedFiles()) {
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// if (filePath.endsWith('.dart')) {
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// print(' $filePath');
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// var analysisSession = analysisContext.currentSession;
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// var result = await analysisSession.getResolvedUnit(filePath);
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// result as ResolvedUnitResult;
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// print(result.diagnostics.join('\n'));
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// }
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// }
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// }
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// timer.stop();
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// print('[time: ${timer.elapsedMilliseconds} ms]');
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//
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// var profiler = ProcessProfiler.getProfilerForPlatform()!;
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// print((await profiler.getProcessUsage(pid))!.memoryMB);
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// await Future<void>.delayed(Duration(milliseconds: 2000));
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// }
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//
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// // var analysisContext = collection.contextFor(path);
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// // var unitResult = await analysisContext.currentSession.getResolvedUnit(path);
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// // unitResult as ResolvedUnitResult;
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//
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// // await Future<void>.delayed(const Duration(days: 1));
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// }
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//
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// /// A class that can return memory and cpu usage information for a given
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// /// process.
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// abstract class ProcessProfiler {
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// ProcessProfiler._();
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//
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// Future<UsageInfo?> getProcessUsage(int processId);
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//
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// /// Return a [ProcessProfiler] instance suitable for the current host
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// /// platform. This can return `null` if we're not able to gather memory and
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// /// cpu information for the current platform.
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// static ProcessProfiler? getProfilerForPlatform() {
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// if (Platform.isLinux || Platform.isMacOS) {
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// return _PosixProcessProfiler();
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// }
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//
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// if (Platform.isWindows) {
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// return _WindowsProcessProfiler();
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// }
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//
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// // Not a supported platform.
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// return null;
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// }
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// }
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//
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// class UsageInfo {
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// /// A number between 0.0 and 100.0 * the number of host CPUs (but typically
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// /// never more than slightly above 100.0).
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// final double? cpuPercentage;
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//
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// /// The process memory usage in kilobytes.
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// final int memoryKB;
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//
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// UsageInfo(this.cpuPercentage, this.memoryKB);
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//
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// double get memoryMB => memoryKB / 1024;
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//
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// @override
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// String toString() {
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// if (cpuPercentage != null) {
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// return '$cpuPercentage% ${memoryMB.toStringAsFixed(1)}MB';
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// }
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// return '${memoryMB.toStringAsFixed(1)}MB';
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// }
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// }
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//
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// class _PosixProcessProfiler extends ProcessProfiler {
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// static final RegExp stringSplitRegExp = RegExp(r'\s+');
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//
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// _PosixProcessProfiler() : super._();
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//
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// @override
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// Future<UsageInfo?> getProcessUsage(int processId) {
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// try {
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// // Execution time is typically 2-4ms.
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// var future = Process.run('ps', [
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// '-o',
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// '%cpu=,rss=',
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// processId.toString(),
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// ]);
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// return future.then((ProcessResult result) {
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// if (result.exitCode != 0) {
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// return Future.value();
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// }
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//
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// return Future.value(_parse(result.stdout as String));
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// });
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// } catch (e) {
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// return Future.error(e);
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// }
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// }
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//
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// UsageInfo? _parse(String psResults) {
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// try {
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// // " 0.0 378940"
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// var line = psResults.split('\n').first.trim();
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// var values = line.split(stringSplitRegExp);
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// return UsageInfo(double.parse(values[0]), int.parse(values[1]));
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// } catch (e) {
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// return null;
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// }
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// }
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// }
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//
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// class _WindowsProcessProfiler extends ProcessProfiler {
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// _WindowsProcessProfiler() : super._();
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//
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// @override
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// Future<UsageInfo?> getProcessUsage(int processId) async {
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// try {
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// var result = await Process.run('tasklist', [
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// '/FI',
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// 'PID eq $processId',
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// '/NH',
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// '/FO',
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// 'csv',
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// ]);
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//
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// if (result.exitCode != 0) {
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// return Future.value();
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// }
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//
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// return Future.value(_parse(result.stdout as String));
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// } catch (e) {
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// return Future.error(e);
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// }
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// }
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//
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// UsageInfo? _parse(String tasklistResults) {
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// try {
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// var lines = tasklistResults.split(RegExp("\r?\n"));
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// for (var line in lines) {
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// if (line.trim().isEmpty) continue;
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// // Hacky parsing of csv line.
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// var entries = jsonDecode("[$line]") as List;
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// if (entries.length != 5) continue;
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// // E.g. 123,456 K
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// var memory = entries[4] as String;
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// memory = memory.substring(0, memory.indexOf(" "));
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// memory = memory.replaceAll(",", "");
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// memory = memory.replaceAll(".", "");
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// return UsageInfo(null, int.parse(memory));
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// }
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// return null;
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// } catch (e) {
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// return null;
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// }
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// }
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// }
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