| // Copyright 2015 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| import 'dart:async'; |
| |
| import 'package:args/command_runner.dart'; |
| import 'package:intl/intl.dart' as intl; |
| import 'package:intl/intl_standalone.dart' as intl_standalone; |
| import 'package:meta/meta.dart'; |
| |
| import 'src/base/common.dart'; |
| import 'src/base/context.dart'; |
| import 'src/base/file_system.dart'; |
| import 'src/base/io.dart'; |
| import 'src/base/logger.dart'; |
| import 'src/base/process.dart'; |
| import 'src/base/utils.dart'; |
| import 'src/context_runner.dart'; |
| import 'src/crash_reporting.dart'; |
| import 'src/doctor.dart'; |
| import 'src/globals.dart'; |
| import 'src/runner/flutter_command.dart'; |
| import 'src/runner/flutter_command_runner.dart'; |
| import 'src/usage.dart'; |
| import 'src/version.dart'; |
| |
| /// Runs the Flutter tool with support for the specified list of [commands]. |
| Future<int> run( |
| List<String> args, |
| List<FlutterCommand> commands, { |
| bool muteCommandLogging = false, |
| bool verbose = false, |
| bool verboseHelp = false, |
| bool reportCrashes, |
| String flutterVersion, |
| }) { |
| reportCrashes ??= !isRunningOnBot; |
| |
| if (muteCommandLogging) { |
| // Remove the verbose option; for help and doctor, users don't need to see |
| // verbose logs. |
| args = List<String>.from(args); |
| args.removeWhere((String option) => option == '-v' || option == '--verbose'); |
| } |
| |
| final FlutterCommandRunner runner = FlutterCommandRunner(verboseHelp: verboseHelp); |
| commands.forEach(runner.addCommand); |
| |
| return runInContext<int>(() async { |
| // Initialize the system locale. |
| final String systemLocale = await intl_standalone.findSystemLocale(); |
| intl.Intl.defaultLocale = intl.Intl.verifiedLocale( |
| systemLocale, intl.NumberFormat.localeExists, |
| onFailure: (String _) => 'en_US' |
| ); |
| |
| try { |
| await runner.run(args); |
| await _exit(0); |
| } catch (error, stackTrace) { |
| String getVersion() => flutterVersion ?? FlutterVersion.instance.getVersionString(); |
| return await _handleToolError(error, stackTrace, verbose, args, reportCrashes, getVersion); |
| } |
| return 0; |
| }); |
| } |
| |
| Future<int> _handleToolError( |
| dynamic error, |
| StackTrace stackTrace, |
| bool verbose, |
| List<String> args, |
| bool reportCrashes, |
| String getFlutterVersion(), |
| ) async { |
| if (error is UsageException) { |
| printError('${error.message}\n'); |
| printError("Run 'flutter -h' (or 'flutter <command> -h') for available flutter commands and options."); |
| // Argument error exit code. |
| return _exit(64); |
| } else if (error is ToolExit) { |
| if (error.message != null) |
| printError(error.message); |
| if (verbose) |
| printError('\n$stackTrace\n'); |
| return _exit(error.exitCode ?? 1); |
| } else if (error is ProcessExit) { |
| // We've caught an exit code. |
| if (error.immediate) { |
| exit(error.exitCode); |
| return error.exitCode; |
| } else { |
| return _exit(error.exitCode); |
| } |
| } else { |
| // We've crashed; emit a log report. |
| stderr.writeln(); |
| |
| if (!reportCrashes) { |
| // Print the stack trace on the bots - don't write a crash report. |
| stderr.writeln('$error'); |
| stderr.writeln(stackTrace.toString()); |
| return _exit(1); |
| } else { |
| flutterUsage.sendException(error, stackTrace); |
| |
| if (error is String) |
| stderr.writeln('Oops; flutter has exited unexpectedly: "$error".'); |
| else |
| stderr.writeln('Oops; flutter has exited unexpectedly.'); |
| |
| await CrashReportSender.instance.sendReport( |
| error: error, |
| stackTrace: stackTrace, |
| getFlutterVersion: getFlutterVersion, |
| ); |
| try { |
| final File file = await _createLocalCrashReport(args, error, stackTrace); |
| stderr.writeln( |
| 'Crash report written to ${file.path};\n' |
| 'please let us know at https://github.com/flutter/flutter/issues.', |
| ); |
| return _exit(1); |
| } catch (error) { |
| stderr.writeln( |
| 'Unable to generate crash report due to secondary error: $error\n' |
| 'please let us know at https://github.com/flutter/flutter/issues.', |
| ); |
| // Any exception throw here (including one thrown by `_exit()`) will |
| // get caught by our zone's `onError` handler. In order to avoid an |
| // infinite error loop, we throw an error that is recognized above |
| // and will trigger an immediate exit. |
| throw ProcessExit(1, immediate: true); |
| } |
| } |
| } |
| } |
| |
| /// File system used by the crash reporting logic. |
| /// |
| /// We do not want to use the file system stored in the context because it may |
| /// be recording. Additionally, in the case of a crash we do not trust the |
| /// integrity of the [AppContext]. |
| @visibleForTesting |
| FileSystem crashFileSystem = const LocalFileSystem(); |
| |
| /// Saves the crash report to a local file. |
| Future<File> _createLocalCrashReport(List<String> args, dynamic error, StackTrace stackTrace) async { |
| File crashFile = getUniqueFile(crashFileSystem.currentDirectory, 'flutter', 'log'); |
| |
| final StringBuffer buffer = StringBuffer(); |
| |
| buffer.writeln('Flutter crash report; please file at https://github.com/flutter/flutter/issues.\n'); |
| |
| buffer.writeln('## command\n'); |
| buffer.writeln('flutter ${args.join(' ')}\n'); |
| |
| buffer.writeln('## exception\n'); |
| buffer.writeln('${error.runtimeType}: $error\n'); |
| buffer.writeln('```\n$stackTrace```\n'); |
| |
| buffer.writeln('## flutter doctor\n'); |
| buffer.writeln('```\n${await _doctorText()}```'); |
| |
| try { |
| await crashFile.writeAsString(buffer.toString()); |
| } on FileSystemException catch (_) { |
| // Fallback to the system temporary directory. |
| crashFile = getUniqueFile(crashFileSystem.systemTempDirectory, 'flutter', 'log'); |
| try { |
| await crashFile.writeAsString(buffer.toString()); |
| } on FileSystemException catch (e) { |
| printError('Could not write crash report to disk: $e'); |
| printError(buffer.toString()); |
| } |
| } |
| |
| return crashFile; |
| } |
| |
| Future<String> _doctorText() async { |
| try { |
| final BufferLogger logger = BufferLogger(); |
| |
| await context.run<bool>( |
| body: () => doctor.diagnose(verbose: true), |
| overrides: <Type, Generator>{ |
| Logger: () => logger, |
| }, |
| ); |
| |
| return logger.statusText; |
| } catch (error, trace) { |
| return 'encountered exception: $error\n\n${trace.toString().trim()}\n'; |
| } |
| } |
| |
| Future<int> _exit(int code) async { |
| if (flutterUsage.isFirstRun) |
| flutterUsage.printWelcome(); |
| |
| // Send any last analytics calls that are in progress without overly delaying |
| // the tool's exit (we wait a maximum of 250ms). |
| if (flutterUsage.enabled) { |
| final Stopwatch stopwatch = Stopwatch()..start(); |
| await flutterUsage.ensureAnalyticsSent(); |
| printTrace('ensureAnalyticsSent: ${stopwatch.elapsedMilliseconds}ms'); |
| } |
| |
| // Run shutdown hooks before flushing logs |
| await runShutdownHooks(); |
| |
| final Completer<Null> completer = Completer<Null>(); |
| |
| // Give the task / timer queue one cycle through before we hard exit. |
| Timer.run(() { |
| try { |
| printTrace('exiting with code $code'); |
| exit(code); |
| completer.complete(); |
| } catch (error, stackTrace) { |
| completer.completeError(error, stackTrace); |
| } |
| }); |
| |
| await completer.future; |
| return code; |
| } |