Remove the 'Move File' refactoring.

pkg/analysis_server/lib/src/services/refactoring/move_file.dart

Index: pkg/analysis_server/lib/src/services/refactoring/move_file.dart
diff --git a/pkg/analysis_server/lib/src/services/refactoring/move_file.dart b/pkg/analysis_server/lib/src/services/refactoring/move_file.dart
deleted file mode 100644
index b7dcf556528709b2ca51824b3fb61734a0045c1b..0000000000000000000000000000000000000000
--- a/pkg/analysis_server/lib/src/services/refactoring/move_file.dart
+++ /dev/null
@@ -1,242 +0,0 @@
-// 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:core';
-
-import 'package:analysis_server/src/protocol_server.dart' hide Element;
-import 'package:analysis_server/src/services/correction/status.dart';
-import 'package:analysis_server/src/services/refactoring/refactoring.dart';
-import 'package:analysis_server/src/services/refactoring/refactoring_internal.dart';
-import 'package:analysis_server/src/services/search/search_engine.dart';
-import 'package:analyzer/dart/element/element.dart';
-import 'package:analyzer/file_system/file_system.dart';
-import 'package:analyzer/src/generated/engine.dart';
-import 'package:analyzer/src/generated/source.dart';
-import 'package:path/path.dart' as pathos;
-import 'package:source_span/src/span.dart';
-import 'package:yaml/yaml.dart';
-
-/**
- * [ExtractLocalRefactoring] implementation.
- */
-class MoveFileRefactoringImpl extends RefactoringImpl
-    implements MoveFileRefactoring {
-  final ResourceProvider resourceProvider;
-  final pathos.Context pathContext;
-  final SearchEngine searchEngine;
-  final AnalysisContext context;
-  final Source source;
-
-  String oldFile;
-  String newFile;
-
-  SourceChange change;
-  LibraryElement library;
-  String oldLibraryDir;
-  String newLibraryDir;
-
-  MoveFileRefactoringImpl(ResourceProvider resourceProvider, this.searchEngine,
-      this.context, this.source, this.oldFile)
-      : resourceProvider = resourceProvider,
-        pathContext = resourceProvider.pathContext {
-    if (source != null) {
-      oldFile = source.fullName;
-    }
-  }
-
-  @override
-  String get refactoringName => 'Move File';
-
-  @override
-  Future<RefactoringStatus> checkFinalConditions() {
-    RefactoringStatus result = new RefactoringStatus();
-    return new Future.value(result);
-  }
-
-  @override
-  Future<RefactoringStatus> checkInitialConditions() {
-    RefactoringStatus result = new RefactoringStatus();
-    return new Future.value(result);
-  }
-
-  @override
-  Future<SourceChange> createChange() async {
-    // move file
-    if (source != null) {
-      return _createFileChange();
-    }
-    // rename project
-    if (oldFile != null) {
-      Resource projectFolder = resourceProvider.getResource(oldFile);
-      if (projectFolder is Folder && projectFolder.exists) {
-        Resource pubspecFile = projectFolder.getChild('pubspec.yaml');
-        if (pubspecFile is File && pubspecFile.exists) {
-          return _createProjectChange(projectFolder, pubspecFile);
-        }
-      }
-    }
-    // no change
-    return null;
-  }
-
-  @override
-  bool requiresPreview() => false;
-
-  /**
-   * Computes the URI to use to reference [newFile] from [reference].
-   */
-  String _computeNewUri(SourceReference reference) {
-    String refDir = pathContext.dirname(reference.file);
-    // try to keep package: URI
-    if (_isPackageReference(reference)) {
-      Source newSource = new NonExistingSource(
-          newFile, pathos.toUri(newFile), UriKind.FILE_URI);
-      Uri restoredUri = context.sourceFactory.restoreUri(newSource);
-      if (restoredUri != null) {
-        return restoredUri.toString();
-      }
-    }
-    // if no package: URI, prepare relative
-    return _getRelativeUri(newFile, refDir);
-  }
-
-  Future<SourceChange> _createFileChange() async {
-    change = new SourceChange('Update File References');
-    List<Source> librarySources = context.getLibrariesContaining(source);
-    await Future.forEach(librarySources, (Source librarySource) async {
-      CompilationUnitElement unitElement =
-          context.getCompilationUnitElement(source, librarySource);
-      if (unitElement != null) {
-        // if a defining unit, update outgoing references
-        library = unitElement.library;
-        if (library.definingCompilationUnit == unitElement) {
-          oldLibraryDir = pathContext.dirname(oldFile);
-          newLibraryDir = pathContext.dirname(newFile);
-          _updateUriReferences(library.imports);
-          _updateUriReferences(library.exports);
-          _updateUriReferences(library.parts);
-        }
-        // update reference to the unit
-        List<SearchMatch> matches =
-            await searchEngine.searchReferences(unitElement);
-        List<SourceReference> references = getSourceReferences(matches);
-        for (SourceReference reference in references) {
-          String newUri = _computeNewUri(reference);
-          reference.addEdit(change, "'$newUri'");
-        }
-      }
-    });
-    return change;
-  }
-
-  Future<SourceChange> _createProjectChange(
-      Folder project, File pubspecFile) async {
-    change = new SourceChange('Rename project');
-    String oldPackageName = pathContext.basename(oldFile);
-    String newPackageName = pathContext.basename(newFile);
-    // add pubspec.yaml change
-    {
-      // prepare "name" field value location
-      SourceSpan nameSpan;
-      {
-        String pubspecString = pubspecFile.readAsStringSync();
-        YamlMap pubspecNode = loadYamlNode(pubspecString);
-        YamlNode nameNode = pubspecNode.nodes['name'];
-        nameSpan = nameNode.span;
-      }
-      int nameOffset = nameSpan.start.offset;
-      int nameLength = nameSpan.length;
-      // add edit
-      change.addEdit(pubspecFile.path, pubspecFile.modificationStamp,
-          new SourceEdit(nameOffset, nameLength, newPackageName));
-    }
-    // check all local libraries
-    for (Source librarySource in context.librarySources) {
-      // should be a local library
-      if (!project.contains(librarySource.fullName)) {
-        continue;
-      }
-      // we need LibraryElement
-      LibraryElement library = context.getLibraryElement(librarySource);
-      if (library == null) {
-        continue;
-      }
-      // update all imports
-      updateUriElements(List<UriReferencedElement> uriElements) {
-        for (UriReferencedElement element in uriElements) {
-          String uri = element.uri;
-          if (uri != null) {
-            String oldPrefix = 'package:$oldPackageName/';
-            if (uri.startsWith(oldPrefix)) {
-              doSourceChange_addElementEdit(
-                  change,
-                  library,
-                  new SourceEdit(element.uriOffset + 1, oldPrefix.length,
-                      'package:$newPackageName/'));
-            }
-          }
-        }
-      }
-
-      updateUriElements(library.imports);
-      updateUriElements(library.exports);
-    }
-    // done
-    return change;
-  }
-
-  String _getRelativeUri(String path, String from) {
-    String uri = pathContext.relative(path, from: from);
-    List<String> parts = pathContext.split(uri);
-    return pathos.posix.joinAll(parts);
-  }
-
-  bool _isPackageReference(SourceReference reference) {
-    Source source = reference.element.source;
-    int offset = reference.range.offset + "'".length;
-    String content = context.getContents(source).data;
-    return content.startsWith('package:', offset);
-  }
-
-  /**
-   * Checks if the given [path] represents a relative URI.
-   *
-   * The following URI's are not relative:
-   *    `/absolute/path/file.dart`
-   *    `dart:math`
-   */
-  bool _isRelativeUri(String path) {
-    // absolute URI
-    if (Uri.parse(path).isAbsolute) {
-      return false;
-    }
-    // absolute path
-    if (pathContext.isAbsolute(path)) {
-      return false;
-    }
-    // OK
-    return true;
-  }
-
-  void _updateUriReference(UriReferencedElement element) {
-    if (!element.isSynthetic) {
-      String elementUri = element.uri;
-      if (_isRelativeUri(elementUri)) {
-        String elementPath = pathContext.join(oldLibraryDir, elementUri);
-        String newUri = _getRelativeUri(elementPath, newLibraryDir);
-        int uriOffset = element.uriOffset;
-        int uriLength = element.uriEnd - uriOffset;
-        doSourceChange_addElementEdit(
-            change, library, new SourceEdit(uriOffset, uriLength, "'$newUri'"));
-      }
-    }
-  }
-
-  void _updateUriReferences(List<UriReferencedElement> elements) {
-    for (UriReferencedElement element in elements) {
-      _updateUriReference(element);
-    }
-  }
-}