| /* |
| * Copyright 2016 The Bazel Authors. All rights reserved. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.google.idea.blaze.base.bazel; |
| |
| import com.google.idea.blaze.base.io.FileAttributeProvider; |
| import com.google.idea.blaze.base.model.primitives.WorkspaceRoot; |
| |
| import javax.annotation.Nullable; |
| import java.io.File; |
| |
| /** |
| * Implementation of WorkspaceHelper. |
| */ |
| public class BazelWorkspaceRootProvider implements WorkspaceRootProvider { |
| |
| public static final BazelWorkspaceRootProvider INSTANCE = new BazelWorkspaceRootProvider(); |
| |
| private BazelWorkspaceRootProvider() {} |
| |
| /** |
| * Checks for the existence of a WORKSPACE file in the given directory. |
| */ |
| @Override |
| public boolean isWorkspaceRoot(File file) { |
| return FileAttributeProvider.getInstance().isFile(new File(file, "WORKSPACE")); |
| } |
| |
| @Nullable |
| @Override |
| public WorkspaceRoot findWorkspaceRoot(File file) { |
| while (file != null) { |
| if (isWorkspaceRoot(file)) { |
| return new WorkspaceRoot(file); |
| } |
| file = file.getParentFile(); |
| } |
| return null; |
| } |
| } |