| // Copyright (c) 2018, 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 'package:analyzer/dart/analysis/context_root.dart'; |
| import 'package:analyzer/file_system/file_system.dart'; |
| import 'package:analyzer/src/workspace/workspace.dart'; |
| import 'package:glob/glob.dart'; |
| import 'package:path/path.dart'; |
| |
| /// An implementation of a context root. |
| class ContextRootImpl implements ContextRoot { |
| @override |
| final ResourceProvider resourceProvider; |
| |
| @override |
| final Folder root; |
| |
| @override |
| final Workspace workspace; |
| |
| @override |
| final List<Resource> included = []; |
| |
| @override |
| final List<Resource> excluded = []; |
| |
| /// A list of the globs for excluded files that were read from the analysis |
| /// options file. |
| List<Glob> excludedGlobs = []; |
| |
| @override |
| File? optionsFile; |
| |
| @override |
| File? packagesFile; |
| |
| /// Initialize a newly created context root. |
| ContextRootImpl(this.resourceProvider, this.root, this.workspace); |
| |
| @override |
| Iterable<String> get excludedPaths => |
| excluded.map((Resource folder) => folder.path); |
| |
| @override |
| int get hashCode => root.path.hashCode; |
| |
| @override |
| Iterable<String> get includedPaths => |
| included.map((Resource folder) => folder.path); |
| |
| @override |
| bool operator ==(Object other) { |
| return other is ContextRoot && root.path == other.root.path; |
| } |
| |
| @override |
| Iterable<String> analyzedFiles() sync* { |
| var visitedCanonicalPaths = <String>{}; |
| for (String path in includedPaths) { |
| if (!_isExcluded(path)) { |
| Resource resource = resourceProvider.getResource(path); |
| if (resource is File) { |
| yield path; |
| } else if (resource is Folder) { |
| yield* _includedFilesInFolder(visitedCanonicalPaths, resource); |
| } else { |
| Type type = resource.runtimeType; |
| throw StateError('Unknown resource at path "$path" ($type)'); |
| } |
| } |
| } |
| } |
| |
| @override |
| bool isAnalyzed(String path) { |
| return _isIncluded(path) && !_isExcluded(path); |
| } |
| |
| /// Return the absolute paths of all of the files that are included in the |
| /// given [folder]. |
| Iterable<String> _includedFilesInFolder( |
| Set<String> visited, |
| Folder folder, |
| ) sync* { |
| for (Resource resource in folder.getChildren()) { |
| String path = resource.path; |
| if (!_isExcluded(path)) { |
| if (resource is File) { |
| yield path; |
| } else if (resource is Folder) { |
| var canonicalPath = resource.resolveSymbolicLinksSync().path; |
| if (visited.add(canonicalPath)) { |
| yield* _includedFilesInFolder(visited, resource); |
| visited.remove(canonicalPath); |
| } |
| } else { |
| Type type = resource.runtimeType; |
| throw StateError('Unknown resource at path "$path" ($type)'); |
| } |
| } |
| } |
| } |
| |
| /// Return `true` if the given [path] is either the same as or inside of one |
| /// of the [excludedPaths]. |
| bool _isExcluded(String path) { |
| Context context = resourceProvider.pathContext; |
| |
| for (var current = path; current != root.path;) { |
| if (context.basename(current).startsWith('.')) { |
| return true; |
| } |
| current = context.dirname(current); |
| } |
| |
| for (String excludedPath in excludedPaths) { |
| if (context.isAbsolute(excludedPath)) { |
| if (path == excludedPath || context.isWithin(excludedPath, path)) { |
| return true; |
| } |
| } else { |
| // The documentation claims that [excludedPaths] only contains absolute |
| // paths, so we shouldn't be able to reach this point. |
| for (String includedPath in includedPaths) { |
| if (context.isWithin( |
| context.join(includedPath, excludedPath), path)) { |
| return true; |
| } |
| } |
| } |
| } |
| for (Glob pattern in excludedGlobs) { |
| if (pattern.matches(path)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| /// Return `true` if the given [path] is either the same as or inside of one |
| /// of the [includedPaths]. |
| bool _isIncluded(String path) { |
| Context context = resourceProvider.pathContext; |
| for (String includedPath in includedPaths) { |
| if (path == includedPath || context.isWithin(includedPath, path)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| } |