Linter Demo

Errors: 0

Warnings: 5

File: /home/fstrocco/Dart/dart/benchmark/koverage/bin/collect_coverage.dart

// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file // for details. 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:convert' show JSON; import 'dart:io'; import 'package:args/args.dart'; import 'package:coverage/src/collect.dart'; import 'package:logging/logging.dart'; import 'package:stack_trace/stack_trace.dart'; main(List<String> arguments) async { Logger.root.level = Level.WARNING; Logger.root.onRecord.listen((LogRecord rec) { print('${rec.level.name}: ${rec.time}: ${rec.message}'); }); var options = _parseArgs(arguments); await Chain.capture(() async { var coverage = await collect( options.host, options.port, options.resume, options.waitPaused, timeout: options.timeout); options.out.write(JSON.encode(coverage)); await options.out.close(); }, onError: (error, Chain chain) { print(error); print(chain.terse); // See http://www.retro11.de/ouxr/211bsd/usr/include/sysexits.h.html // EX_SOFTWARE exit(70); }); } class Options { final String host; final int port; final IOSink out; final Duration timeout; final bool waitPaused; final bool resume; Options(this.host, this.port, this.out, this.timeout, this.waitPaused, this.resume); } Options _parseArgs(List<String> arguments) { var parser = new ArgParser() ..addOption('host', abbr: 'H', defaultsTo: '127.0.0.1', help: 'remote VM host') ..addOption('port', abbr: 'p', help: 'remote VM port', defaultsTo: '8181') ..addOption('out', abbr: 'o', defaultsTo: 'stdout', help: 'output: may be file or stdout') ..addOption('connect-timeout', abbr: 't', help: 'connect timeout in seconds') ..addFlag('wait-paused', abbr: 'w', defaultsTo: false, help: 'wait for all isolates to be paused before collecting coverage') ..addFlag('resume-isolates', abbr: 'r', defaultsTo: false, help: 'resume all isolates on exit') ..addFlag('help', abbr: 'h', negatable: false, help: 'show this help'); var args = parser.parse(arguments); printUsage() { print('Usage: dart collect_coverage.dart --port=NNNN [OPTION...]\n'); print(parser.usage); } fail(message) { print('Error: $message\n'); printUsage(); exit(1); } if (args['help']) { printUsage(); exit(0); } if (args['port'] == null) fail('port not specified'); var port = int.parse(args['port']); var out; if (args['out'] == 'stdout') { out = stdout; } else { var outfile = new File(args['out'])..createSync(recursive: true); out = outfile.openWrite(); } var timeout = (args['connect-timeout'] == null) ? null : new Duration(seconds: int.parse(args['connect-timeout'])); return new Options(args['host'], port, out, timeout, args['wait-paused'], args['resume-isolates']); }