| // Copyright (C) 2017 The Android Open Source Project |
| // |
| // 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.gerrit.server.edit.tree; |
| |
| import java.io.IOException; |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.List; |
| import org.eclipse.jgit.dircache.DirCacheEditor; |
| import org.eclipse.jgit.lib.Repository; |
| import org.eclipse.jgit.revwalk.RevCommit; |
| import org.eclipse.jgit.revwalk.RevWalk; |
| import org.eclipse.jgit.treewalk.TreeWalk; |
| |
| /** A {@code TreeModification} which renames a file or moves it to a different path. */ |
| public class RenameFileModification implements TreeModification { |
| |
| private final String currentFilePath; |
| private final String newFilePath; |
| |
| public RenameFileModification(String currentFilePath, String newFilePath) { |
| this.currentFilePath = currentFilePath; |
| this.newFilePath = newFilePath; |
| } |
| |
| @Override |
| public List<DirCacheEditor.PathEdit> getPathEdits(Repository repository, RevCommit baseCommit) |
| throws IOException { |
| try (RevWalk revWalk = new RevWalk(repository)) { |
| revWalk.parseHeaders(baseCommit); |
| try (TreeWalk treeWalk = |
| TreeWalk.forPath(revWalk.getObjectReader(), currentFilePath, baseCommit.getTree())) { |
| if (treeWalk == null) { |
| return Collections.emptyList(); |
| } |
| DirCacheEditor.DeletePath deletePathEdit = new DirCacheEditor.DeletePath(currentFilePath); |
| AddPath addPathEdit = |
| new AddPath(newFilePath, treeWalk.getFileMode(0), treeWalk.getObjectId(0)); |
| return Arrays.asList(deletePathEdit, addPathEdit); |
| } |
| } |
| } |
| |
| @Override |
| public String getFilePath() { |
| return newFilePath; |
| } |
| } |