Initial hermetic package analyzer.

pkg/analyzer_cli/lib/src/driver.dart

 // 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.
 
 library analyzer_cli.src.driver;
 
 import 'dart:async';
 import 'dart:convert';
 import 'dart:io';
 
@@ skipping 16 matching lines @@
 import 'package:analyzer/src/generated/java_io.dart';
 import 'package:analyzer/src/generated/sdk_io.dart';
 import 'package:analyzer/src/generated/source.dart';
 import 'package:analyzer/src/generated/source_io.dart';
 import 'package:analyzer/src/generated/utilities_general.dart'
     show PerformanceTag;
 import 'package:analyzer/src/services/lint.dart';
 import 'package:analyzer/src/task/options.dart';
 import 'package:analyzer_cli/src/analyzer_impl.dart';
 import 'package:analyzer_cli/src/options.dart';
+import 'package:analyzer_cli/src/package_analyzer.dart';
 import 'package:analyzer_cli/src/perf_report.dart';
 import 'package:analyzer_cli/starter.dart';
 import 'package:linter/src/plugin/linter_plugin.dart';
 import 'package:package_config/discovery.dart' as pkgDiscovery;
 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 path;
 import 'package:plugin/manager.dart';
 import 'package:plugin/plugin.dart';
@@ skipping 59 matching lines @@
 
     _processPlugins();
 
     // Parse commandline options.
     CommandLineOptions options = CommandLineOptions.parse(args);
 
     // Cache options of interest to inform analysis.
     _setupEnv(options);
 
     // Do analysis.
-    if (_isBatch) {
+    if (options.packageMode) {
+      ErrorSeverity severity = _analyzePackage(options);
+      // In case of error propagate exit code.
+      if (severity == ErrorSeverity.ERROR) {
+        exitCode = severity.ordinal;
+      }
+    } else if (_isBatch) {
       _BatchRunner.runAsBatch(args, (List<String> args) {
         CommandLineOptions options = CommandLineOptions.parse(args);
         return _analyzeAll(options);
       });
     } else {
       ErrorSeverity severity = _analyzeAll(options);
       // In case of error propagate exit code.
       if (severity == ErrorSeverity.ERROR) {
         exitCode = severity.ordinal;
       }
@@ skipping 81 matching lines @@
         errorSink.writeln("${part.fullName} is a part and cannot be analyzed.");
         errorSink.writeln("Please pass in a library that contains this part.");
         exitCode = ErrorSeverity.ERROR.ordinal;
         allResult = allResult.max(ErrorSeverity.ERROR);
       }
     }
 
     return allResult;
   }
 
+  /// Perform package analysis according to the given [options].
+  ErrorSeverity _analyzePackage(CommandLineOptions options) {
+    return _analyzeAllTag.makeCurrentWhile(() {
+      return new PackageAnalyzer(options).analyze();
+    });
+  }
+
   /// Determine whether the context created during a previous call to
   /// [_analyzeAll] can be re-used in order to analyze using [options].
   bool _canContextBeReused(CommandLineOptions options) {
     // TODO(paulberry): add a command-line option that disables context re-use.
     if (_context == null) {
       return false;
     }
     if (options.packageRootPath != _previousOptions.packageRootPath) {
       return false;
     }
@@ skipping 226 matching lines @@
   /// Create an analysis context that is prepared to analyze sources according
   /// to the given [options], and store it in [_context].
   void _createAnalysisContext(CommandLineOptions options) {
     if (_canContextBeReused(options)) {
       return;
     }
     _previousOptions = options;
 
     // Create a context.
     AnalysisContext context = AnalysisEngine.instance.createAnalysisContext();
+    _context = context;
 
     // Choose a package resolution policy and a diet parsing policy based on
     // the command-line options.
     SourceFactory sourceFactory = _chooseUriResolutionPolicy(
         options, (context as InternalAnalysisContext).embedderYamlLocator);
     AnalyzeFunctionBodiesPredicate dietParsingPolicy =
         _chooseDietParsingPolicy(options);
 
     context.sourceFactory = sourceFactory;
 
-    Map<String, String> definedVariables = options.definedVariables;
-    if (!definedVariables.isEmpty) {
-      DeclaredVariables declaredVariables = context.declaredVariables;
-      definedVariables.forEach((String variableName, String value) {
-        declaredVariables.define(variableName, value);
-      });
-    }
-
-    if (options.log) {
-      AnalysisEngine.instance.logger = new StdLogger();
-    }
-
-    // Set context options.
-    AnalysisOptionsImpl contextOptions = new AnalysisOptionsImpl();
-    contextOptions.hint = !options.disableHints;
-    contextOptions.enableStrictCallChecks = options.enableStrictCallChecks;
-    contextOptions.enableSuperMixins = options.enableSuperMixins;
-    contextOptions.analyzeFunctionBodiesPredicate = dietParsingPolicy;
-    contextOptions.generateImplicitErrors = options.showPackageWarnings;
-    contextOptions.generateSdkErrors = options.showSdkWarnings;
-    contextOptions.lint = options.lints;
-    contextOptions.strongMode = options.strongMode;
-    context.analysisOptions = contextOptions;
-    sourceFactory.dartSdk.context.analysisOptions = contextOptions;
-    _context = context;
-
-    // Process analysis options file (and notify all interested parties).
-    _processAnalysisOptions(options, context);
+    setAnalysisContextOptions(_context, options,
+        (AnalysisOptionsImpl contextOptions) {
+      contextOptions.analyzeFunctionBodiesPredicate = dietParsingPolicy;
+    });
   }
 
   /// Return discovered packagespec, or `null` if none is found.
   Packages _discoverPackagespec(Uri root) {
     try {
       Packages packages = pkgDiscovery.findPackagesFromFile(root);
       if (packages != Packages.noPackages) {
         return packages;
       }
     } catch (_) {
       // Ignore and fall through to null.
     }
 
     return null;
   }
 
-  fileSystem.File _getOptionsFile(CommandLineOptions options) {
-    fileSystem.File file;
-    String filePath = options.analysisOptionsFile;
-    if (filePath != null) {
-      file = PhysicalResourceProvider.INSTANCE.getFile(filePath);
-      if (!file.exists) {
-        printAndFail('Options file not found: $filePath',
-            exitCode: ErrorSeverity.ERROR.ordinal);
-      }
-    } else {
-      filePath = AnalysisEngine.ANALYSIS_OPTIONS_FILE;
-      file = PhysicalResourceProvider.INSTANCE.getFile(filePath);
-    }
-    return file;
-  }
-
   Map<String, List<fileSystem.Folder>> _getPackageMap(Packages packages) {
     if (packages == null) {
       return null;
     }
 
     Map<String, List<fileSystem.Folder>> folderMap =
         new Map<String, List<fileSystem.Folder>>();
     packages.asMap().forEach((String packagePath, Uri uri) {
       folderMap[packagePath] = [
         PhysicalResourceProvider.INSTANCE.getFolder(path.fromUri(uri))
       ];
     });
     return folderMap;
   }
 
-  void _processAnalysisOptions(
-      CommandLineOptions options, AnalysisContext context) {
-    fileSystem.File file = _getOptionsFile(options);
-    List<OptionsProcessor> optionsProcessors =
-        AnalysisEngine.instance.optionsPlugin.optionsProcessors;
-    try {
-      AnalysisOptionsProvider analysisOptionsProvider =
-          new AnalysisOptionsProvider();
-      Map<String, YamlNode> optionMap =
-          analysisOptionsProvider.getOptionsFromFile(file);
-      optionsProcessors.forEach(
-          (OptionsProcessor p) => p.optionsProcessed(context, optionMap));
-
-      // Fill in lint rule defaults in case lints are enabled and rules are
-      // not specified in an options file.
-      if (options.lints && !containsLintRuleEntry(optionMap)) {
-        setLints(context, linterPlugin.contributedRules);
-      }
-
-      // Ask engine to further process options.
-      if (optionMap != null) {
-        configureContextOptions(context, optionMap);
-      }
-    } on Exception catch (e) {
-      optionsProcessors.forEach((OptionsProcessor p) => p.onError(e));
-    }
-  }
-
   void _processPlugins() {
     List<Plugin> plugins = <Plugin>[];
     plugins.addAll(AnalysisEngine.instance.requiredPlugins);
     plugins.add(AnalysisEngine.instance.commandLinePlugin);
     plugins.add(AnalysisEngine.instance.optionsPlugin);
     plugins.add(linterPlugin);
     plugins.addAll(_userDefinedPlugins);
 
     ExtensionManager manager = new ExtensionManager();
     manager.processPlugins(plugins);
@@ skipping 17 matching lines @@
   void _setupEnv(CommandLineOptions options) {
     // In batch mode, SDK is specified on the main command line rather than in
     // the command lines sent to stdin.  So process it before deciding whether
     // to activate batch mode.
     if (sdk == null) {
       sdk = new DirectoryBasedDartSdk(new JavaFile(options.dartSdkPath));
     }
     _isBatch = options.shouldBatch;
   }
 
+  static void setAnalysisContextOptions(
+      AnalysisContext context,
+      CommandLineOptions options,
+      void configureContextOptions(AnalysisOptionsImpl contextOptions)) {
+    Map<String, String> definedVariables = options.definedVariables;
+    if (!definedVariables.isEmpty) {
+      DeclaredVariables declaredVariables = context.declaredVariables;
+      definedVariables.forEach((String variableName, String value) {
+        declaredVariables.define(variableName, value);
+      });
+    }
+
+    if (options.log) {
+      AnalysisEngine.instance.logger = new StdLogger();
+    }
+
+    // Prepare context options.
+    AnalysisOptionsImpl contextOptions = new AnalysisOptionsImpl();
+    contextOptions.hint = !options.disableHints;
+    contextOptions.enableStrictCallChecks = options.enableStrictCallChecks;
+    contextOptions.enableSuperMixins = options.enableSuperMixins;
+    contextOptions.generateImplicitErrors = options.showPackageWarnings;
+    contextOptions.generateSdkErrors = options.showSdkWarnings;
+    contextOptions.lint = options.lints;
+    contextOptions.strongMode = options.strongMode;
+    configureContextOptions(contextOptions);
+
+    // Set context options.
+    context.analysisOptions = contextOptions;
+    context.sourceFactory.dartSdk.context.analysisOptions = contextOptions;
+
+    // Process analysis options file (and notify all interested parties).
+    _processAnalysisOptions(context, options);
+  }
+
   /// Perform a deep comparison of two string maps.
   static bool _equalMaps(Map<String, String> m1, Map<String, String> m2) {
     if (m1.length != m2.length) {
       return false;
     }
     for (String key in m1.keys) {
       if (!m2.containsKey(key) || m1[key] != m2[key]) {
         return false;
       }
     }
     return true;
   }
 
+  static fileSystem.File _getOptionsFile(CommandLineOptions options) {
+    fileSystem.File file;
+    String filePath = options.analysisOptionsFile;
+    if (filePath != null) {
+      file = PhysicalResourceProvider.INSTANCE.getFile(filePath);
+      if (!file.exists) {
+        printAndFail('Options file not found: $filePath',
+            exitCode: ErrorSeverity.ERROR.ordinal);
+      }
+    } else {
+      filePath = AnalysisEngine.ANALYSIS_OPTIONS_FILE;
+      file = PhysicalResourceProvider.INSTANCE.getFile(filePath);
+    }
+    return file;
+  }
+
   /// Convert [sourcePath] into an absolute path.
   static String _normalizeSourcePath(String sourcePath) =>
       path.normalize(new File(sourcePath).absolute.path);
+
+  static void _processAnalysisOptions(
+      AnalysisContext context, CommandLineOptions options) {
+    fileSystem.File file = _getOptionsFile(options);
+    List<OptionsProcessor> optionsProcessors =
+        AnalysisEngine.instance.optionsPlugin.optionsProcessors;
+    try {
+      AnalysisOptionsProvider analysisOptionsProvider =
+          new AnalysisOptionsProvider();
+      Map<String, YamlNode> optionMap =
+          analysisOptionsProvider.getOptionsFromFile(file);
+      optionsProcessors.forEach(
+          (OptionsProcessor p) => p.optionsProcessed(context, optionMap));
+
+      // Fill in lint rule defaults in case lints are enabled and rules are
+      // not specified in an options file.
+      if (options.lints && !containsLintRuleEntry(optionMap)) {
+        setLints(context, linterPlugin.contributedRules);
+      }
+
+      // Ask engine to further process options.
+      if (optionMap != null) {
+        configureContextOptions(context, optionMap);
+      }
+    } on Exception catch (e) {
+      optionsProcessors.forEach((OptionsProcessor p) => p.onError(e));
+    }
+  }
 }
 
 /// Provides a framework to read command line options from stdin and feed them
 /// to a callback.
 class _BatchRunner {
   /// Run the tool in 'batch' mode, receiving command lines through stdin and
   /// returning pass/fail status through stdout. This feature is intended for
   /// use in unit testing.
   static void runAsBatch(List<String> sharedArgs, _BatchRunnerHandler handler) {
     outSink.writeln('>>> BATCH START');
@@ skipping 70 matching lines @@
     for (var package in packages) {
       var packageName = path.basename(package.path);
       var realPath = package.resolveSymbolicLinksSync();
       result[packageName] = [
         PhysicalResourceProvider.INSTANCE.getFolder(realPath)
       ];
     }
     return result;
   }
 }