| /* |
| * Copyright (C) 2007, Dave Watson <dwatson@mimvista.com> |
| * Copyright (C) 2007-2008, Robin Rosenberg <robin.rosenberg@dewire.com> |
| * and other copyright owners as documented in the project's IP log. |
| * |
| * This program and the accompanying materials are made available |
| * under the terms of the Eclipse Distribution License v1.0 which |
| * accompanies this distribution, is reproduced below, and is |
| * available at http://www.eclipse.org/org/documents/edl-v10.php |
| * |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or |
| * without modification, are permitted provided that the following |
| * conditions are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * - Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials provided |
| * with the distribution. |
| * |
| * - Neither the name of the Eclipse Foundation, Inc. nor the |
| * names of its contributors may be used to endorse or promote |
| * products derived from this software without specific prior |
| * written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND |
| * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, |
| * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| package org.eclipse.jgit.lib; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.HashSet; |
| |
| import org.eclipse.jgit.lib.GitIndex.Entry; |
| |
| /** |
| * Compares the Index, a Tree, and the working directory |
| */ |
| public class IndexDiff { |
| private GitIndex index; |
| private Tree tree; |
| |
| /** |
| * Construct an indexdiff for diffing the workdir against |
| * the index. |
| * |
| * @param repository |
| * @throws IOException |
| */ |
| public IndexDiff(Repository repository) throws IOException { |
| this.tree = repository.mapTree(Constants.HEAD); |
| this.index = repository.getIndex(); |
| } |
| |
| /** |
| * Construct an indexdiff for diffing the workdir against both |
| * the index and a tree. |
| * |
| * @param tree |
| * @param index |
| */ |
| public IndexDiff(Tree tree, GitIndex index) { |
| this.tree = tree; |
| this.index = index; |
| } |
| |
| boolean anyChanges = false; |
| |
| /** |
| * Run the diff operation. Until this is called, all lists will be empty |
| * @return if anything is different between index, tree, and workdir |
| * @throws IOException |
| */ |
| public boolean diff() throws IOException { |
| final File root = index.getRepository().getWorkDir(); |
| new IndexTreeWalker(index, tree, root, new AbstractIndexTreeVisitor() { |
| public void visitEntry(TreeEntry treeEntry, Entry indexEntry, File file) { |
| if (treeEntry == null) { |
| added.add(indexEntry.getName()); |
| anyChanges = true; |
| } else if (indexEntry == null) { |
| if (!(treeEntry instanceof Tree)) |
| removed.add(treeEntry.getFullName()); |
| anyChanges = true; |
| } else { |
| if (!treeEntry.getId().equals(indexEntry.getObjectId())) { |
| changed.add(indexEntry.getName()); |
| anyChanges = true; |
| } |
| } |
| |
| if (indexEntry != null) { |
| if (!file.exists()) { |
| missing.add(indexEntry.getName()); |
| anyChanges = true; |
| } else { |
| if (indexEntry.isModified(root, true)) { |
| modified.add(indexEntry.getName()); |
| anyChanges = true; |
| } |
| } |
| } |
| } |
| }).walk(); |
| |
| return anyChanges; |
| } |
| |
| HashSet<String> added = new HashSet<String>(); |
| HashSet<String> changed = new HashSet<String>(); |
| HashSet<String> removed = new HashSet<String>(); |
| HashSet<String> missing = new HashSet<String>(); |
| HashSet<String> modified = new HashSet<String>(); |
| |
| /** |
| * @return list of files added to the index, not in the tree |
| */ |
| public HashSet<String> getAdded() { |
| return added; |
| } |
| |
| /** |
| * @return list of files changed from tree to index |
| */ |
| public HashSet<String> getChanged() { |
| return changed; |
| } |
| |
| /** |
| * @return list of files removed from index, but in tree |
| */ |
| public HashSet<String> getRemoved() { |
| return removed; |
| } |
| |
| /** |
| * @return list of files in index, but not filesystem |
| */ |
| public HashSet<String> getMissing() { |
| return missing; |
| } |
| |
| /** |
| * @return list of files on modified on disk relative to the index |
| */ |
| public HashSet<String> getModified() { |
| return modified; |
| } |
| } |