Revert "Move the linter core to the analyzer package"

pkg/analyzer/lib/src/lint/analysis.dart

Index: pkg/analyzer/lib/src/lint/analysis.dart
diff --git a/pkg/analyzer/lib/src/lint/analysis.dart b/pkg/analyzer/lib/src/lint/analysis.dart
deleted file mode 100644
index f779e5451bfc32353ac607a33a049b782a189d20..0000000000000000000000000000000000000000
--- a/pkg/analyzer/lib/src/lint/analysis.dart
+++ /dev/null
@@ -1,262 +0,0 @@
-// Copyright (c) 2015, 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:collection';
-import 'dart:io' as io;
-
-import 'package:analyzer/dart/element/element.dart';
-import 'package:analyzer/file_system/file_system.dart'
-    show File, Folder, ResourceProvider, ResourceUriResolver;
-import 'package:analyzer/file_system/physical_file_system.dart';
-import 'package:analyzer/source/package_map_resolver.dart';
-import 'package:analyzer/src/context/builder.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/generated/source.dart';
-import 'package:analyzer/src/generated/source_io.dart';
-import 'package:analyzer/src/lint/io.dart';
-import 'package:analyzer/src/lint/linter.dart';
-import 'package:analyzer/src/lint/project.dart';
-import 'package:analyzer/src/lint/registry.dart';
-import 'package:analyzer/src/services/lint.dart';
-import 'package:cli_util/cli_util.dart' as cli_util;
-import 'package:package_config/packages.dart' show Packages;
-import 'package:package_config/packages_file.dart' as pkgfile show parse;
-import 'package:package_config/src/packages_impl.dart' show MapPackages;
-import 'package:path/path.dart' as p;
-import 'package:plugin/manager.dart';
-import 'package:plugin/plugin.dart';
-
-Source createSource(Uri sourceUri) {
-  return PhysicalResourceProvider.INSTANCE
-      .getFile(sourceUri.toFilePath())
-      .createSource(sourceUri);
-}
-
-/// Print the given message and exit with the given [exitCode]
-void printAndFail(String message, {int exitCode: 15}) {
-  print(message);
-  io.exit(exitCode);
-}
-
-AnalysisOptions _buildAnalyzerOptions(DriverOptions options) {
-  AnalysisOptionsImpl analysisOptions = new AnalysisOptionsImpl();
-  analysisOptions.strongMode = options.strongMode;
-  analysisOptions.hint = false;
-  analysisOptions.lint = options.enableLints;
-  analysisOptions.generateSdkErrors = options.showSdkWarnings;
-  analysisOptions.enableTiming = options.enableTiming;
-  return analysisOptions;
-}
-
-class AnalysisDriver {
-  /// The sources which have been analyzed so far.  This is used to avoid
-  /// analyzing a source more than once, and to compute the total number of
-  /// sources analyzed for statistics.
-  Set<Source> _sourcesAnalyzed = new HashSet<Source>();
-
-  final LinterOptions options;
-
-  AnalysisDriver(this.options) {
-    _processPlugins();
-  }
-
-  /// Return the number of sources that have been analyzed so far.
-  int get numSourcesAnalyzed => _sourcesAnalyzed.length;
-
-  List<UriResolver> get resolvers {
-    // TODO(brianwilkerson) Use the context builder to compute all of the resolvers.
-    ResourceProvider resourceProvider = PhysicalResourceProvider.INSTANCE;
-    ContextBuilder builder = new ContextBuilder(resourceProvider, null, null);
-
-    DartSdk sdk = options.mockSdk ??
-        new FolderBasedDartSdk(
-            resourceProvider, resourceProvider.getFolder(sdkDir));
-
-    List<UriResolver> resolvers = [new DartUriResolver(sdk)];
-
-    if (options.packageRootPath != null) {
-      // TODO(brianwilkerson) After 0.30.0 is published, clean up the following.
-      try {
-        // Try to use the post 0.30.0 API.
-        (builder as dynamic).builderOptions.defaultPackagesDirectoryPath =
-            options.packageRootPath;
-      } catch (_) {
-        // If that fails, fall back to the pre 0.30.0 API.
-        (builder as dynamic).defaultPackagesDirectoryPath =
-            options.packageRootPath;
-      }
-      Map<String, List<Folder>> packageMap =
-          builder.convertPackagesToMap(builder.createPackageMap(null));
-      resolvers.add(new PackageMapUriResolver(resourceProvider, packageMap));
-    }
-
-    // File URI resolver must come last so that files inside "/lib" are
-    // are analyzed via "package:" URI's.
-    resolvers.add(new ResourceUriResolver(resourceProvider));
-    return resolvers;
-  }
-
-  String get sdkDir {
-    if (options.dartSdkPath != null) {
-      return options.dartSdkPath;
-    }
-    // In case no SDK has been specified, fall back to inferring it
-    // TODO: pass args to cli_util
-    return cli_util.getSdkDir().path;
-  }
-
-  List<AnalysisErrorInfo> analyze(Iterable<io.File> files) {
-    AnalysisContext context = AnalysisEngine.instance.createAnalysisContext();
-    context.analysisOptions = _buildAnalyzerOptions(options);
-    registerLinters(context);
-
-    Packages packages = _getPackageConfig();
-
-    context.sourceFactory = new SourceFactory(resolvers, packages);
-    AnalysisEngine.instance.logger = new StdLogger();
-
-    List<Source> sources = [];
-    ChangeSet changeSet = new ChangeSet();
-    for (io.File file in files) {
-      File sourceFile = PhysicalResourceProvider.INSTANCE
-          .getFile(p.normalize(file.absolute.path));
-      Source source = sourceFile.createSource();
-      Uri uri = context.sourceFactory.restoreUri(source);
-      if (uri != null) {
-        // Ensure that we analyze the file using its canonical URI (e.g. if
-        // it's in "/lib", analyze it using a "package:" URI).
-        source = sourceFile.createSource(uri);
-      }
-      sources.add(source);
-      changeSet.addedSource(source);
-    }
-    context.applyChanges(changeSet);
-
-    // Temporary location
-    var project = new DartProject(context, sources);
-    // This will get pushed into the generator (or somewhere comparable) when
-    // we have a proper plugin.
-    Registry.ruleRegistry.forEach((lint) {
-      if (lint is ProjectVisitor) {
-        (lint as ProjectVisitor).visit(project);
-      }
-    });
-
-    List<AnalysisErrorInfo> errors = [];
-
-    for (Source source in sources) {
-      context.computeErrors(source);
-      errors.add(context.getErrors(source));
-      _sourcesAnalyzed.add(source);
-    }
-
-    if (options.visitTransitiveClosure) {
-      // In the process of computing errors for all the sources in [sources],
-      // the analyzer has visited the transitive closure of all libraries
-      // referenced by those sources.  So now we simply need to visit all
-      // library sources known to the analysis context, and all parts they
-      // refer to.
-      for (Source librarySource in context.librarySources) {
-        for (Source source in _getAllUnitSources(context, librarySource)) {
-          if (!_sourcesAnalyzed.contains(source)) {
-            context.computeErrors(source);
-            errors.add(context.getErrors(source));
-            _sourcesAnalyzed.add(source);
-          }
-        }
-      }
-    }
-
-    return errors;
-  }
-
-  void registerLinters(AnalysisContext context) {
-    if (options.enableLints) {
-      setLints(context, options.enabledLints?.toList(growable: false));
-    }
-  }
-
-  /// Yield the sources for all the compilation units constituting
-  /// [librarySource] (including the defining compilation unit).
-  Iterable<Source> _getAllUnitSources(
-      AnalysisContext context, Source librarySource) {
-    List<Source> result = <Source>[librarySource];
-    result.addAll(context
-        .getLibraryElement(librarySource)
-        .parts
-        .map((CompilationUnitElement e) => e.source));
-    return result;
-  }
-
-  Packages _getPackageConfig() {
-    if (options.packageConfigPath != null) {
-      String packageConfigPath = options.packageConfigPath;
-      Uri fileUri = new Uri.file(packageConfigPath);
-      try {
-        io.File configFile = new io.File.fromUri(fileUri).absolute;
-        List<int> bytes = configFile.readAsBytesSync();
-        Map<String, Uri> map = pkgfile.parse(bytes, configFile.uri);
-        return new MapPackages(map);
-      } catch (e) {
-        printAndFail(
-            'Unable to read package config data from $packageConfigPath: $e');
-      }
-    }
-    return null;
-  }
-
-  void _processPlugins() {
-    List<Plugin> plugins = <Plugin>[];
-    plugins.addAll(AnalysisEngine.instance.requiredPlugins);
-    plugins.add(AnalysisEngine.instance.commandLinePlugin);
-    plugins.add(AnalysisEngine.instance.optionsPlugin);
-    ExtensionManager manager = new ExtensionManager();
-    manager.processPlugins(plugins);
-  }
-}
-
-class DriverOptions {
-  /// The maximum number of sources for which AST structures should be kept
-  /// in the cache.  The default is 512.
-  int cacheSize = 512;
-
-  /// The path to the dart SDK.
-  String dartSdkPath;
-
-  /// Whether to show lint warnings.
-  bool enableLints = true;
-
-  /// Whether to gather timing data during analysis.
-  bool enableTiming = false;
-
-  /// The path to a `.packages` configuration file
-  String packageConfigPath;
-
-  /// The path to the package root.
-  String packageRootPath;
-
-  /// Whether to show SDK warnings.
-  bool showSdkWarnings = false;
-
-  /// Whether to use Dart's Strong Mode analyzer.
-  bool strongMode = true;
-
-  /// The mock SDK (to speed up testing) or `null` to use the actual SDK.
-  DartSdk mockSdk;
-
-  /// Whether to show lints for the transitive closure of imported and exported
-  /// libraries.
-  bool visitTransitiveClosure = false;
-}
-
-/// Prints logging information comments to the [outSink] and error messages to
-/// [errorSink].
-class StdLogger extends Logger {
-  @override
-  void logError(String message, [exception]) => errorSink.writeln(message);
-  @override
-  void logInformation(String message, [exception]) => outSink.writeln(message);
-}