Linter Demo

Errors: 5

Warnings: 22

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

// Copyright (c) 2013, 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:io'; import 'package:args/args.dart'; import 'package:coverage/coverage.dart'; import 'package:path/path.dart'; /// [Environment] stores gathered arguments information. class Environment { String sdkRoot; String pkgRoot; String input; IOSink output; List<String> reportOn; int workers; bool prettyPrint; bool lcov; bool expectMarkers; bool verbose; } main(List<String> arguments) async { final env = parseArgs(arguments); List files = filesToProcess(env.input); if (env.verbose) { print('Environment:'); print(' # files: ${files.length}'); print(' # workers: ${env.workers}'); print(' sdk-root: ${env.sdkRoot}'); print(' package-root: ${env.pkgRoot}'); print(' report-on: ${env.reportOn}'); } var clock = new Stopwatch()..start(); var hitmap = await parseCoverage(files, env.workers); // All workers are done. Process the data. if (env.verbose) { print('Done creating global hitmap. Took ${clock.elapsedMilliseconds} ms.'); } String output; var resolver = new Resolver(packageRoot: env.pkgRoot, sdkRoot: env.sdkRoot); var loader = new Loader(); if (env.prettyPrint) { output = await new PrettyPrintFormatter(resolver, loader).format(hitmap, reportOn: env.reportOn); } else { assert(env.lcov); output = await new LcovFormatter(resolver).format(hitmap, reportOn: env.reportOn); } env.output.write(output); await env.output.flush(); if (env.verbose) { print('Done flushing output. Took ${clock.elapsedMilliseconds} ms.'); } if (env.verbose) { if (resolver.failed.length > 0) { print('Failed to resolve:'); resolver.failed.toSet().forEach((e) => print(' $e')); } if (loader.failed.length > 0) { print('Failed to load:'); loader.failed.toSet().forEach((e) => print(' $e')); } } await env.output.close(); } /// Checks the validity of the provided arguments. Does not initialize actual /// processing. Environment parseArgs(List<String> arguments) { final env = new Environment(); var parser = new ArgParser(); parser.addOption('sdk-root', abbr: 's', help: 'path to the SDK root'); parser.addOption('package-root', abbr: 'p', help: 'path to the package root'); parser.addOption('in', abbr: 'i', help: 'input(s): may be file or directory'); parser.addOption('out', abbr: 'o', defaultsTo: 'stdout', help: 'output: may be file or stdout'); parser.addOption('report-on', allowMultiple: true, help: 'which directories or files to report coverage on'); parser.addOption('workers', abbr: 'j', defaultsTo: '1', help: 'number of workers'); parser.addFlag('pretty-print', abbr: 'r', negatable: false, help: 'convert coverage data to pretty print format'); parser.addFlag('lcov', abbr: 'l', negatable: false, help: 'convert coverage data to lcov format'); parser.addFlag('verbose', abbr: 'v', negatable: false, help: 'verbose output'); parser.addFlag('help', abbr: 'h', negatable: false, help: 'show this help'); var args = parser.parse(arguments); printUsage() { print('Usage: dart format_coverage.dart [OPTION...]\n'); print(parser.usage); } fail(String msg) { print('\n$msg\n'); printUsage(); exit(1); } if (args['help']) { printUsage(); exit(0); } env.sdkRoot = args['sdk-root']; if (env.sdkRoot != null) { env.sdkRoot = normalize(join(absolute(env.sdkRoot), 'lib')); if (!FileSystemEntity.isDirectorySync(env.sdkRoot)) { fail('Provided SDK root "${args["sdk-root"]}" is not a valid SDK ' 'top-level directory'); } } env.pkgRoot = args['package-root']; if (env.pkgRoot != null) { env.pkgRoot = absolute(normalize(args['package-root'])); if (!FileSystemEntity.isDirectorySync(env.pkgRoot)) { fail('Provided package root "${args["package-root"]}" is not directory.'); } } if (args['in'] == null) fail('No input files given.'); env.input = absolute(normalize(args['in'])); if (!FileSystemEntity.isDirectorySync(env.input) && !FileSystemEntity.isFileSync(env.input)) { fail('Provided input "${args["in"]}" is neither a directory nor a file.'); } if (args['out'] == 'stdout') { env.output = stdout; } else { var outpath = absolute(normalize(args['out'])); var outfile = new File(outpath)..createSync(recursive: true); env.output = outfile.openWrite(); } env.reportOn = args['report-on']; env.lcov = args['lcov']; if (args['pretty-print'] && env.lcov) { fail('Choose one of pretty-print or lcov output'); } // Use pretty-print either explicitly or by default. env.prettyPrint = !env.lcov; try { env.workers = int.parse('${args["workers"]}'); } catch (e) { fail('Invalid worker count: $e'); } env.verbose = args['verbose']; return env; } /// Given an absolute path absPath, this function returns a [List] of files /// are contained by it if it is a directory, or a [List] containing the file if /// it is a file. List filesToProcess(String absPath) { var filePattern = new RegExp(r'^dart-cov-\d+-\d+.json$'); if (FileSystemEntity.isDirectorySync(absPath)) { return new Directory(absPath) .listSync(recursive: true) .where((e) => e is File && filePattern.hasMatch(basename(e.path))) .toList(); } return [new File(absPath)]; }