| // 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:async'; |
| import 'dart:io'; |
| import 'dart:math'; |
| |
| import 'package:analysis_server/protocol/protocol_constants.dart' |
| show PROTOCOL_VERSION; |
| import 'package:analysis_server/src/analysis_server.dart'; |
| import 'package:analysis_server/src/lsp/lsp_analysis_server.dart'; |
| import 'package:analysis_server/src/lsp/lsp_socket_server.dart'; |
| import 'package:analysis_server/src/server/detachable_filesystem_manager.dart'; |
| import 'package:analysis_server/src/server/dev_server.dart'; |
| import 'package:analysis_server/src/server/diagnostic_server.dart'; |
| import 'package:analysis_server/src/server/http_server.dart'; |
| import 'package:analysis_server/src/server/lsp_stdio_server.dart'; |
| import 'package:analysis_server/src/server/stdio_server.dart'; |
| import 'package:analysis_server/src/services/completion/dart/uri_contributor.dart' |
| show UriContributor; |
| import 'package:analysis_server/src/socket_server.dart'; |
| import 'package:analysis_server/starter.dart'; |
| import 'package:analyzer/file_system/physical_file_system.dart'; |
| import 'package:analyzer/instrumentation/file_instrumentation.dart'; |
| import 'package:analyzer/instrumentation/instrumentation.dart'; |
| import 'package:analyzer/src/dart/sdk/sdk.dart'; |
| import 'package:analyzer/src/generated/engine.dart'; |
| import 'package:analyzer/src/generated/sdk.dart'; |
| import 'package:analyzer/src/plugin/resolver_provider.dart'; |
| import 'package:args/args.dart'; |
| import 'package:linter/src/rules.dart' as linter; |
| import 'package:telemetry/crash_reporting.dart'; |
| import 'package:telemetry/telemetry.dart' as telemetry; |
| |
| /// Commandline argument parser. (Copied from analyzer/lib/options.dart) |
| /// TODO(pquitslund): replaces with a simple [ArgParser] instance |
| /// when the args package supports ignoring unrecognized |
| /// options/flags (https://github.com/dart-lang/args/issues/9). |
| /// TODO(devoncarew): Consider removing the ability to support unrecognized |
| /// flags for the analysis server. |
| class CommandLineParser { |
| final List<String> _knownFlags; |
| final ArgParser _parser; |
| |
| /// Creates a new command line parser |
| CommandLineParser() |
| : _knownFlags = <String>[], |
| _parser = new ArgParser(allowTrailingOptions: true); |
| |
| ArgParser get parser => _parser; |
| |
| /// Defines a flag. |
| /// See [ArgParser.addFlag()]. |
| void addFlag(String name, |
| {String abbr, |
| String help, |
| bool defaultsTo: false, |
| bool negatable: true, |
| void callback(bool value), |
| bool hide: false}) { |
| _knownFlags.add(name); |
| _parser.addFlag(name, |
| abbr: abbr, |
| help: help, |
| defaultsTo: defaultsTo, |
| negatable: negatable, |
| callback: callback, |
| hide: hide); |
| } |
| |
| /// Defines a value-taking option. |
| /// See [ArgParser.addOption()]. |
| void addOption(String name, |
| {String abbr, |
| String help, |
| List<String> allowed, |
| Map<String, String> allowedHelp, |
| String defaultsTo, |
| void callback(value)}) { |
| _knownFlags.add(name); |
| _parser.addOption(name, |
| abbr: abbr, |
| help: help, |
| allowed: allowed, |
| allowedHelp: allowedHelp, |
| defaultsTo: defaultsTo, |
| callback: callback); |
| } |
| |
| /// Generates a string displaying usage information for the defined options. |
| /// See [ArgParser.usage]. |
| String getUsage() => _parser.usage; |
| |
| /// Parses [args], a list of command-line arguments, matches them against the |
| /// flags and options defined by this parser, and returns the result. The |
| /// values of any defined variables are captured in the given map. |
| /// See [ArgParser]. |
| ArgResults parse(List<String> args, Map<String, String> definedVariables) => |
| _parser.parse( |
| _filterUnknowns(parseDefinedVariables(args, definedVariables))); |
| |
| List<String> parseDefinedVariables( |
| List<String> args, Map<String, String> definedVariables) { |
| int count = args.length; |
| List<String> remainingArgs = <String>[]; |
| for (int i = 0; i < count; i++) { |
| String arg = args[i]; |
| if (arg == '--') { |
| while (i < count) { |
| remainingArgs.add(args[i++]); |
| } |
| } else if (arg.startsWith("-D")) { |
| definedVariables[arg.substring(2)] = args[++i]; |
| } else { |
| remainingArgs.add(arg); |
| } |
| } |
| return remainingArgs; |
| } |
| |
| List<String> _filterUnknowns(List<String> args) { |
| // TODO(devoncarew): Consider dropping support for the |
| // --ignore-unrecognized-flags option. |
| |
| // Only filter args if the ignore flag is specified. |
| if (args.contains('--ignore-unrecognized-flags')) { |
| // Filter all unrecognized flags and options. |
| List<String> filtered = <String>[]; |
| for (int i = 0; i < args.length; ++i) { |
| String arg = args[i]; |
| if (arg.startsWith('--') && arg.length > 2) { |
| String option = arg.substring(2); |
| // remove any leading 'no-' |
| if (option.startsWith('no-')) { |
| option = option.substring(3); |
| } |
| // strip the last '=value' |
| int equalsOffset = option.lastIndexOf('='); |
| if (equalsOffset != -1) { |
| option = option.substring(0, equalsOffset); |
| } |
| // check the option |
| if (!_knownFlags.contains(option)) { |
| //"eat" params by advancing to the next flag/option |
| i = _getNextFlagIndex(args, i); |
| } else { |
| filtered.add(arg); |
| } |
| } else { |
| filtered.add(arg); |
| } |
| } |
| |
| return filtered; |
| } else { |
| return args; |
| } |
| } |
| |
| int _getNextFlagIndex(List<String> args, int i) { |
| for (; i < args.length; ++i) { |
| if (args[i].startsWith('--')) { |
| return i; |
| } |
| } |
| return i; |
| } |
| } |
| |
| /** |
| * The [Driver] class represents a single running instance of the analysis |
| * server application. It is responsible for parsing command line options |
| * and starting the HTTP and/or stdio servers. |
| */ |
| class Driver implements ServerStarter { |
| /** |
| * The name of the application that is used to start a server. |
| */ |
| static const BINARY_NAME = "server"; |
| |
| /** |
| * The name of the option used to set the identifier for the client. |
| */ |
| static const String CLIENT_ID = "client-id"; |
| |
| /** |
| * The name of the option used to set the version for the client. |
| */ |
| static const String CLIENT_VERSION = "client-version"; |
| |
| /** |
| * The name of the option used to enable DartPad specific functionality. |
| */ |
| static const String DARTPAD_OPTION = "dartpad"; |
| |
| /** |
| * The name of the option used to enable instrumentation. |
| */ |
| static const String ENABLE_INSTRUMENTATION_OPTION = "enable-instrumentation"; |
| |
| /** |
| * The name of the option used to set the file read mode. |
| */ |
| static const String FILE_READ_MODE = "file-read-mode"; |
| |
| /** |
| * The name of the option used to print usage information. |
| */ |
| static const String HELP_OPTION = "help"; |
| |
| /** |
| * The name of the flag used to configure reporting analytics. |
| */ |
| static const String ANALYTICS_FLAG = "analytics"; |
| |
| /** |
| * Suppress analytics for this session. |
| */ |
| static const String SUPPRESS_ANALYTICS_FLAG = "suppress-analytics"; |
| |
| /** |
| * The name of the option used to cause instrumentation to also be written to |
| * a local file. |
| */ |
| static const String INSTRUMENTATION_LOG_FILE = "instrumentation-log-file"; |
| |
| /** |
| * The name of the option used to specify if [print] should print to the |
| * console instead of being intercepted. |
| */ |
| static const String INTERNAL_PRINT_TO_CONSOLE = "internal-print-to-console"; |
| |
| /** |
| * The name of the option used to describe the new analysis driver logger. |
| */ |
| static const String NEW_ANALYSIS_DRIVER_LOG = 'new-analysis-driver-log'; |
| |
| /** |
| * The name of the flag used to enable version 2 of semantic highlight |
| * notification. |
| */ |
| static const String USE_ANALYSIS_HIGHLIGHT2 = "useAnalysisHighlight2"; |
| |
| /** |
| * The option for specifying the http diagnostic port. |
| * If specified, users can review server status and performance information |
| * by opening a web browser on http://localhost:<port> |
| */ |
| static const String PORT_OPTION = "port"; |
| |
| /** |
| * The path to the SDK. |
| */ |
| static const String SDK_OPTION = "sdk"; |
| |
| /** |
| * The path to the data cache. |
| */ |
| static const String CACHE_FOLDER = "cache"; |
| |
| /** |
| * Whether to enable parsing via the Fasta parser. |
| */ |
| static const String USE_FASTA_PARSER = "use-fasta-parser"; |
| |
| /** |
| * The name of the flag to use the Language Server Protocol (LSP). |
| */ |
| static const String USE_LSP = "lsp"; |
| |
| /** |
| * A directory to analyze in order to train an analysis server snapshot. |
| */ |
| static const String TRAIN_USING = "train-using"; |
| |
| /** |
| * The instrumentation server that is to be used by the analysis server. |
| */ |
| InstrumentationServer instrumentationServer; |
| |
| /** |
| * The file resolver provider used to override the way file URI's are |
| * resolved in some contexts. |
| */ |
| ResolverProvider fileResolverProvider; |
| |
| /** |
| * The package resolver provider used to override the way package URI's are |
| * resolved in some contexts. |
| */ |
| ResolverProvider packageResolverProvider; |
| |
| /*** |
| * An optional manager to handle file systems which may not always be |
| * available. |
| */ |
| DetachableFileSystemManager detachableFileSystemManager; |
| |
| HttpAnalysisServer httpServer; |
| |
| Driver(); |
| |
| /** |
| * Use the given command-line [arguments] to start this server. |
| */ |
| void start(List<String> arguments) { |
| CommandLineParser parser = _createArgParser(); |
| ArgResults results = parser.parse(arguments, <String, String>{}); |
| |
| AnalysisServerOptions analysisServerOptions = new AnalysisServerOptions(); |
| analysisServerOptions.useAnalysisHighlight2 = |
| results[USE_ANALYSIS_HIGHLIGHT2]; |
| analysisServerOptions.fileReadMode = results[FILE_READ_MODE]; |
| analysisServerOptions.newAnalysisDriverLog = |
| results[NEW_ANALYSIS_DRIVER_LOG]; |
| analysisServerOptions.clientId = results[CLIENT_ID]; |
| analysisServerOptions.clientVersion = results[CLIENT_VERSION]; |
| analysisServerOptions.cacheFolder = results[CACHE_FOLDER]; |
| analysisServerOptions.useFastaParser = results[USE_FASTA_PARSER]; |
| analysisServerOptions.useLanguageServerProtocol = results[USE_LSP]; |
| |
| bool disableAnalyticsForSession = results[SUPPRESS_ANALYTICS_FLAG]; |
| if (results.wasParsed(TRAIN_USING)) { |
| disableAnalyticsForSession = true; |
| } |
| |
| telemetry.Analytics analytics = telemetry.createAnalyticsInstance( |
| 'UA-26406144-29', 'analysis-server', |
| disableForSession: disableAnalyticsForSession); |
| analysisServerOptions.analytics = analytics; |
| |
| if (analysisServerOptions.clientId != null) { |
| // Record the client name as the application installer ID. |
| analytics.setSessionValue('aiid', analysisServerOptions.clientId); |
| } |
| if (analysisServerOptions.clientVersion != null) { |
| analytics.setSessionValue('cd1', analysisServerOptions.clientVersion); |
| } |
| |
| // TODO(devoncarew): Replace with the real crash product ID. |
| analysisServerOptions.crashReportSender = |
| new CrashReportSender('Dart_analysis_server', analytics); |
| |
| if (telemetry.SHOW_ANALYTICS_UI) { |
| if (results.wasParsed(ANALYTICS_FLAG)) { |
| analytics.enabled = results[ANALYTICS_FLAG]; |
| print(telemetry.createAnalyticsStatusMessage(analytics.enabled)); |
| return null; |
| } |
| } |
| |
| if (results[DARTPAD_OPTION]) { |
| UriContributor.suggestFilePaths = false; |
| } |
| |
| if (results[HELP_OPTION]) { |
| _printUsage(parser.parser, analytics, fromHelp: true); |
| return null; |
| } |
| |
| final defaultSdkPath = _getSdkPath(results); |
| final dartSdkManager = new DartSdkManager(defaultSdkPath, true); |
| |
| // TODO(brianwilkerson) It would be nice to avoid creating an SDK that |
| // cannot be re-used, but the SDK is needed to create a package map provider |
| // in the case where we need to run `pub` in order to get the package map. |
| DartSdk defaultSdk = _createDefaultSdk(defaultSdkPath, true); |
| // |
| // Initialize the instrumentation service. |
| // |
| String logFilePath = results[INSTRUMENTATION_LOG_FILE]; |
| if (logFilePath != null) { |
| _rollLogFiles(logFilePath, 5); |
| FileInstrumentationServer fileBasedServer = |
| new FileInstrumentationServer(logFilePath); |
| instrumentationServer = instrumentationServer != null |
| ? new MulticastInstrumentationServer( |
| [instrumentationServer, fileBasedServer]) |
| : fileBasedServer; |
| } |
| InstrumentationService instrumentationService = |
| new InstrumentationService(instrumentationServer); |
| instrumentationService.logVersion( |
| results[TRAIN_USING] != null |
| ? 'training-0' |
| : _readUuid(instrumentationService), |
| analysisServerOptions.clientId, |
| analysisServerOptions.clientVersion, |
| PROTOCOL_VERSION, |
| defaultSdk.sdkVersion); |
| AnalysisEngine.instance.instrumentationService = instrumentationService; |
| |
| int diagnosticServerPort; |
| if (results[PORT_OPTION] != null) { |
| try { |
| diagnosticServerPort = int.parse(results[PORT_OPTION]); |
| } on FormatException { |
| print('Invalid port number: ${results[PORT_OPTION]}'); |
| print(''); |
| _printUsage(parser.parser, analytics); |
| exitCode = 1; |
| return null; |
| } |
| } |
| |
| if (analysisServerOptions.useLanguageServerProtocol) { |
| startLspServer(results, analysisServerOptions, dartSdkManager, |
| instrumentationService, diagnosticServerPort); |
| } else { |
| startAnalysisServer( |
| results, |
| analysisServerOptions, |
| parser, |
| dartSdkManager, |
| instrumentationService, |
| analytics, |
| diagnosticServerPort); |
| } |
| } |
| |
| void startAnalysisServer( |
| ArgResults results, |
| AnalysisServerOptions analysisServerOptions, |
| CommandLineParser parser, |
| DartSdkManager dartSdkManager, |
| InstrumentationService instrumentationService, |
| telemetry.Analytics analytics, |
| int diagnosticServerPort, |
| ) { |
| String trainDirectory = results[TRAIN_USING]; |
| if (trainDirectory != null) { |
| if (!FileSystemEntity.isDirectorySync(trainDirectory)) { |
| print("Training directory '$trainDirectory' not found.\n"); |
| exitCode = 1; |
| return null; |
| } |
| } |
| final serve_http = diagnosticServerPort != null; |
| |
| // |
| // Register lint rules. |
| // |
| linter.registerLintRules(); |
| |
| _DiagnosticServerImpl diagnosticServer = new _DiagnosticServerImpl(); |
| |
| // Ping analytics with our initial call. |
| analytics.sendScreenView('home'); |
| |
| // |
| // Create the sockets and start listening for requests. |
| // |
| final socketServer = new SocketServer( |
| analysisServerOptions, |
| dartSdkManager, |
| instrumentationService, |
| diagnosticServer, |
| fileResolverProvider, |
| packageResolverProvider, |
| detachableFileSystemManager); |
| httpServer = new HttpAnalysisServer(socketServer); |
| |
| diagnosticServer.httpServer = httpServer; |
| if (serve_http) { |
| diagnosticServer.startOnPort(diagnosticServerPort); |
| } |
| |
| if (trainDirectory != null) { |
| Directory tempDriverDir = |
| Directory.systemTemp.createTempSync('analysis_server_'); |
| analysisServerOptions.cacheFolder = tempDriverDir.path; |
| |
| DevAnalysisServer devServer = new DevAnalysisServer(socketServer); |
| devServer.initServer(); |
| |
| () async { |
| // We first analyze code with an empty driver cache. |
| print('Analyzing with an empty driver cache:'); |
| int exitCode = await devServer.processDirectories([trainDirectory]); |
| if (exitCode != 0) exit(exitCode); |
| |
| print(''); |
| |
| // Then again with a populated cache. |
| print('Analyzing with a populated driver cache:'); |
| exitCode = await devServer.processDirectories([trainDirectory]); |
| if (exitCode != 0) exit(exitCode); |
| |
| if (serve_http) { |
| httpServer.close(); |
| } |
| await instrumentationService.shutdown(); |
| |
| socketServer.analysisServer.shutdown(); |
| |
| try { |
| tempDriverDir.deleteSync(recursive: true); |
| } catch (_) { |
| // ignore any exception |
| } |
| |
| exit(exitCode); |
| }(); |
| } else { |
| _captureExceptions(socketServer, instrumentationService, () { |
| StdioAnalysisServer stdioServer = new StdioAnalysisServer(socketServer); |
| stdioServer.serveStdio().then((_) async { |
| // TODO(brianwilkerson) Determine whether this await is necessary. |
| await null; |
| |
| if (serve_http) { |
| httpServer.close(); |
| } |
| await instrumentationService.shutdown(); |
| socketServer.analysisServer.shutdown(); |
| exit(0); |
| }); |
| }, |
| print: results[INTERNAL_PRINT_TO_CONSOLE] |
| ? null |
| : httpServer.recordPrint); |
| } |
| } |
| |
| void startLspServer( |
| ArgResults args, |
| AnalysisServerOptions analysisServerOptions, |
| DartSdkManager dartSdkManager, |
| InstrumentationService instrumentationService, |
| int diagnosticServerPort, |
| ) { |
| final serve_http = diagnosticServerPort != null; |
| |
| linter.registerLintRules(); |
| |
| _DiagnosticServerImpl diagnosticServer = new _DiagnosticServerImpl(); |
| |
| final socketServer = new LspSocketServer( |
| analysisServerOptions, |
| diagnosticServer, |
| dartSdkManager, |
| instrumentationService, |
| ); |
| |
| httpServer = new HttpAnalysisServer(socketServer); |
| |
| diagnosticServer.httpServer = httpServer; |
| if (serve_http) { |
| diagnosticServer.startOnPort(diagnosticServerPort); |
| } |
| |
| _captureLspExceptions(socketServer, instrumentationService, () { |
| LspStdioAnalysisServer stdioServer = |
| new LspStdioAnalysisServer(socketServer); |
| stdioServer.serveStdio().then((_) async { |
| // Only shutdown the server and exit if the server is not already |
| // handling the shutdown. |
| if (!socketServer.analysisServer.willExit) { |
| socketServer.analysisServer.shutdown(); |
| exit(0); |
| } |
| }); |
| }); |
| } |
| |
| /** |
| * Execute the given [callback] within a zone that will capture any unhandled |
| * exceptions and both report them to the client and send them to the given |
| * instrumentation [service]. If a [print] function is provided, then also |
| * capture any data printed by the callback and redirect it to the function. |
| */ |
| dynamic _captureExceptions(SocketServer socketServer, |
| InstrumentationService service, dynamic callback(), |
| {void print(String line)}) { |
| void errorFunction(Zone self, ZoneDelegate parent, Zone zone, |
| dynamic exception, StackTrace stackTrace) { |
| service.logPriorityException(exception, stackTrace); |
| socketServer.analysisServer.sendServerErrorNotification( |
| 'Captured exception', exception, stackTrace); |
| throw exception; |
| } |
| |
| var printFunction = print == null |
| ? null |
| : (Zone self, ZoneDelegate parent, Zone zone, String line) { |
| // Note: we don't pass the line on to stdout, because that is |
| // reserved for communication to the client. |
| print(line); |
| }; |
| ZoneSpecification zoneSpecification = new ZoneSpecification( |
| handleUncaughtError: errorFunction, print: printFunction); |
| return runZoned(callback, zoneSpecification: zoneSpecification); |
| } |
| |
| /** |
| * Execute the given [callback] within a zone that will capture any unhandled |
| * exceptions and both report them to the client and send them to the given |
| * instrumentation [service]. If a [print] function is provided, then also |
| * capture any data printed by the callback and redirect it to the function. |
| */ |
| dynamic _captureLspExceptions( |
| // TODO(dantup): This is a copy/paste of the above with some minor changes. |
| // We should either factor these out, or if we end up with an LspDriver, put |
| // this there. |
| LspSocketServer socketServer, |
| InstrumentationService service, |
| dynamic callback()) { |
| void errorFunction(Zone self, ZoneDelegate parent, Zone zone, |
| dynamic exception, StackTrace stackTrace) { |
| service.logPriorityException(exception, stackTrace); |
| LspAnalysisServer analysisServer = socketServer.analysisServer; |
| analysisServer.sendServerErrorNotification( |
| 'Captured exception', exception, stackTrace); |
| throw exception; |
| } |
| |
| ZoneSpecification zoneSpecification = |
| new ZoneSpecification(handleUncaughtError: errorFunction); |
| return runZoned(callback, zoneSpecification: zoneSpecification); |
| } |
| |
| /** |
| * Create and return the parser used to parse the command-line arguments. |
| */ |
| CommandLineParser _createArgParser() { |
| CommandLineParser parser = new CommandLineParser(); |
| parser.addOption(CLIENT_ID, |
| help: "an identifier used to identify the client"); |
| parser.addOption(CLIENT_VERSION, help: "the version of the client"); |
| parser.addFlag(DARTPAD_OPTION, |
| help: 'enable DartPad specific functionality', |
| defaultsTo: false, |
| hide: true); |
| parser.addFlag(ENABLE_INSTRUMENTATION_OPTION, |
| help: "enable sending instrumentation information to a server", |
| defaultsTo: false, |
| negatable: false); |
| parser.addFlag(HELP_OPTION, |
| help: "print this help message without starting a server", |
| abbr: 'h', |
| defaultsTo: false, |
| negatable: false); |
| parser.addOption(INSTRUMENTATION_LOG_FILE, |
| help: "write instrumentation data to the given file"); |
| parser.addFlag(INTERNAL_PRINT_TO_CONSOLE, |
| help: "enable sending `print` output to the console", |
| defaultsTo: false, |
| negatable: false); |
| parser.addOption(NEW_ANALYSIS_DRIVER_LOG, |
| help: "set a destination for the new analysis driver's log"); |
| parser.addFlag(ANALYTICS_FLAG, |
| help: 'enable or disable sending analytics information to Google', |
| hide: !telemetry.SHOW_ANALYTICS_UI); |
| parser.addFlag(SUPPRESS_ANALYTICS_FLAG, |
| negatable: false, |
| help: 'suppress analytics for this session', |
| hide: !telemetry.SHOW_ANALYTICS_UI); |
| parser.addOption(PORT_OPTION, |
| help: "the http diagnostic port on which the server provides" |
| " status and performance information"); |
| parser.addOption(SDK_OPTION, help: "[path] the path to the sdk"); |
| parser.addFlag(USE_ANALYSIS_HIGHLIGHT2, |
| help: "enable version 2 of semantic highlight", |
| defaultsTo: false, |
| negatable: false); |
| parser.addOption(FILE_READ_MODE, |
| help: "an option for reading files (some clients normalize eol " |
| "characters, which make the file offset and range information " |
| "incorrect)", |
| allowed: ["as-is", "normalize-eol-always"], |
| allowedHelp: { |
| "as-is": "file contents are read as-is", |
| "normalize-eol-always": |
| r"eol characters normalized to the single character new line ('\n')" |
| }, |
| defaultsTo: "as-is"); |
| parser.addOption(CACHE_FOLDER, |
| help: "[path] path to the location where to cache data"); |
| parser.addFlag("preview-dart-2", |
| help: "Enable the Dart 2.0 preview (deprecated)", hide: true); |
| parser.addFlag(USE_FASTA_PARSER, |
| defaultsTo: true, |
| help: "Whether to enable parsing via the Fasta parser"); |
| parser.addFlag(USE_LSP, |
| defaultsTo: false, help: "Whether to use the Language Server Protocol"); |
| parser.addOption(TRAIN_USING, |
| help: "Pass in a directory to analyze for purposes of training an " |
| "analysis server snapshot."); |
| |
| return parser; |
| } |
| |
| DartSdk _createDefaultSdk(String defaultSdkPath, bool useSummaries) { |
| PhysicalResourceProvider resourceProvider = |
| PhysicalResourceProvider.INSTANCE; |
| FolderBasedDartSdk sdk = new FolderBasedDartSdk( |
| resourceProvider, resourceProvider.getFolder(defaultSdkPath)); |
| sdk.useSummary = useSummaries; |
| return sdk; |
| } |
| |
| /** |
| * Constructs a uuid combining the current date and a random integer. |
| */ |
| String _generateUuidString() { |
| int millisecondsSinceEpoch = new DateTime.now().millisecondsSinceEpoch; |
| int random = new Random().nextInt(0x3fffffff); |
| return '$millisecondsSinceEpoch$random'; |
| } |
| |
| String _getSdkPath(ArgResults args) { |
| if (args[SDK_OPTION] != null) { |
| return args[SDK_OPTION]; |
| } else { |
| // No path to the SDK was provided. |
| // Use FolderBasedDartSdk.defaultSdkDirectory, which will make a guess. |
| return FolderBasedDartSdk.defaultSdkDirectory( |
| PhysicalResourceProvider.INSTANCE, |
| ).path; |
| } |
| } |
| |
| /** |
| * Print information about how to use the server. |
| */ |
| void _printUsage(ArgParser parser, telemetry.Analytics analytics, |
| {bool fromHelp: false}) { |
| print('Usage: $BINARY_NAME [flags]'); |
| print(''); |
| print('Supported flags are:'); |
| print(parser.usage); |
| |
| if (telemetry.SHOW_ANALYTICS_UI) { |
| // Print analytics status and information. |
| if (fromHelp) { |
| print(''); |
| print(telemetry.analyticsNotice); |
| } |
| print(''); |
| print(telemetry.createAnalyticsStatusMessage(analytics.enabled, |
| command: ANALYTICS_FLAG)); |
| } |
| } |
| |
| /** |
| * Read the UUID from disk, generating and storing a new one if necessary. |
| */ |
| String _readUuid(InstrumentationService service) { |
| final instrumentationLocation = |
| PhysicalResourceProvider.INSTANCE.getStateLocation('.instrumentation'); |
| if (instrumentationLocation == null) { |
| return _generateUuidString(); |
| } |
| File uuidFile = new File(instrumentationLocation.getChild('uuid.txt').path); |
| try { |
| if (uuidFile.existsSync()) { |
| String uuid = uuidFile.readAsStringSync(); |
| if (uuid != null && uuid.length > 5) { |
| return uuid; |
| } |
| } |
| } catch (exception, stackTrace) { |
| service.logPriorityException(exception, stackTrace); |
| } |
| String uuid = _generateUuidString(); |
| try { |
| uuidFile.parent.createSync(recursive: true); |
| uuidFile.writeAsStringSync(uuid); |
| } catch (exception, stackTrace) { |
| service.logPriorityException(exception, stackTrace); |
| // Slightly alter the uuid to indicate it was not persisted |
| uuid = 'temp-$uuid'; |
| } |
| return uuid; |
| } |
| |
| /** |
| * Perform log files rolling. |
| * |
| * Rename existing files with names `[path].(x)` to `[path].(x+1)`. |
| * Keep at most [numOld] files. |
| * Rename the file with the given [path] to `[path].1`. |
| */ |
| static void _rollLogFiles(String path, int numOld) { |
| for (int i = numOld - 1; i >= 0; i--) { |
| try { |
| String oldPath = i == 0 ? path : '$path.$i'; |
| new File(oldPath).renameSync('$path.${i + 1}'); |
| } catch (e) {} |
| } |
| } |
| } |
| |
| /** |
| * Implements the [DiagnosticServer] class by wrapping an [HttpAnalysisServer]. |
| */ |
| class _DiagnosticServerImpl extends DiagnosticServer { |
| HttpAnalysisServer httpServer; |
| |
| _DiagnosticServerImpl(); |
| |
| @override |
| Future<int> getServerPort() => httpServer.serveHttp(); |
| |
| Future startOnPort(int port) { |
| return httpServer.serveHttp(port); |
| } |
| } |
