Christian Halstrick
13 years ago
committed by
Code Review
3 changed files with 299 additions and 0 deletions
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|
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/* |
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* Copyright (C) 2011, Tomasz Zarna <Tomasz.Zarna@pl.ibm.com> |
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* and other copyright owners as documented in the project's IP log. |
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* |
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* This program and the accompanying materials are made available |
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* under the terms of the Eclipse Distribution License v1.0 which |
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* accompanies this distribution, is reproduced below, and is |
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* available at http://www.eclipse.org/org/documents/edl-v10.php
|
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* |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or |
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* without modification, are permitted provided that the following |
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* conditions are met: |
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* |
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* - Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* - Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following |
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* disclaimer in the documentation and/or other materials provided |
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* with the distribution. |
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* |
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* - Neither the name of the Eclipse Foundation, Inc. nor the |
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* names of its contributors may be used to endorse or promote |
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* products derived from this software without specific prior |
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* written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND |
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, |
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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package org.eclipse.jgit.api; |
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import static org.junit.Assert.assertEquals; |
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import java.io.File; |
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import java.util.List; |
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import org.eclipse.jgit.diff.DiffEntry; |
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import org.eclipse.jgit.diff.DiffEntry.ChangeType; |
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import org.eclipse.jgit.lib.RepositoryTestCase; |
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import org.junit.Test; |
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public class DiffCommandTest extends RepositoryTestCase { |
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@Test |
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public void testDiffModified() throws Exception { |
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write(new File(db.getDirectory().getParent(), "test.txt"), "test"); |
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File folder = new File(db.getDirectory().getParent(), "folder"); |
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folder.mkdir(); |
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write(new File(folder, "folder.txt"), "folder"); |
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Git git = new Git(db); |
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git.add().addFilepattern(".").call(); |
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git.commit().setMessage("Initial commit").call(); |
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write(new File(folder, "folder.txt"), "folder change"); |
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List<DiffEntry> entries = git.diff().call(); |
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assertEquals(1, entries.size()); |
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assertEquals(ChangeType.MODIFY, entries.get(0) |
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.getChangeType()); |
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assertEquals("folder/folder.txt", entries.get(0) |
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.getOldPath()); |
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assertEquals("folder/folder.txt", entries.get(0) |
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.getNewPath()); |
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} |
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@Test |
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public void testDiffCached() throws Exception { |
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write(new File(db.getDirectory().getParent(), "test.txt"), "test"); |
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File folder = new File(db.getDirectory().getParent(), "folder"); |
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folder.mkdir(); |
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Git git = new Git(db); |
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git.add().addFilepattern(".").call(); |
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git.commit().setMessage("Initial commit").call(); |
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write(new File(folder, "folder.txt"), "folder"); |
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git.add().addFilepattern(".").call(); |
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List<DiffEntry> entries = git.diff().setCached(true).call(); |
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assertEquals(1, entries.size()); |
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assertEquals(ChangeType.ADD, entries.get(0) |
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.getChangeType()); |
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assertEquals("/dev/null", entries.get(0) |
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.getOldPath()); |
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assertEquals("folder/folder.txt", entries.get(0) |
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.getNewPath()); |
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} |
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} |
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@ -0,0 +1,189 @@
|
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/* |
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* Copyright (C) 2011, Tomasz Zarna <Tomasz.Zarna@pl.ibm.com> |
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* and other copyright owners as documented in the project's IP log. |
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* |
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* This program and the accompanying materials are made available |
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* under the terms of the Eclipse Distribution License v1.0 which |
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* accompanies this distribution, is reproduced below, and is |
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* available at http://www.eclipse.org/org/documents/edl-v10.php
|
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* |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or |
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* without modification, are permitted provided that the following |
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* conditions are met: |
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* |
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* - Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* - Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following |
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* disclaimer in the documentation and/or other materials provided |
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* with the distribution. |
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* |
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* - 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 |
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* written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND |
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, |
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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package org.eclipse.jgit.api; |
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import static org.eclipse.jgit.lib.Constants.HEAD; |
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import java.io.IOException; |
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import java.util.List; |
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import org.eclipse.jgit.JGitText; |
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import org.eclipse.jgit.api.errors.GitAPIException; |
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import org.eclipse.jgit.api.errors.NoHeadException; |
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import org.eclipse.jgit.diff.DiffEntry; |
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import org.eclipse.jgit.diff.DiffFormatter; |
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import org.eclipse.jgit.dircache.DirCacheIterator; |
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import org.eclipse.jgit.lib.ObjectId; |
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import org.eclipse.jgit.lib.ObjectReader; |
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import org.eclipse.jgit.lib.Repository; |
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import org.eclipse.jgit.treewalk.AbstractTreeIterator; |
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import org.eclipse.jgit.treewalk.CanonicalTreeParser; |
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import org.eclipse.jgit.treewalk.FileTreeIterator; |
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import org.eclipse.jgit.treewalk.filter.TreeFilter; |
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/** |
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* Show changes between commits, commit and working tree, etc. |
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* |
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* @see <a href="http://www.kernel.org/pub/software/scm/git/docs/git-diff.html" |
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* >Git documentation about diff</a> |
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*/ |
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public class DiffCommand extends GitCommand<List<DiffEntry>> { |
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private AbstractTreeIterator oldTree; |
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private AbstractTreeIterator newTree; |
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private boolean cached; |
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private TreeFilter pathFilter = TreeFilter.ALL; |
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// TODO: fixed to true for now
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private boolean showNameAndStatusOnly = true; |
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/** |
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* @param repo |
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*/ |
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protected DiffCommand(Repository repo) { |
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super(repo); |
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} |
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/** |
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* Executes the {@code Diff} command with all the options and parameters |
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* collected by the setter methods (e.g. {@link #setCached(boolean)} of this |
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* class. Each instance of this class should only be used for one invocation |
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* of the command. Don't call this method twice on an instance. |
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* |
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* @return a DiffEntry for each path which is different |
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*/ |
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public List<DiffEntry> call() throws GitAPIException, IOException { |
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final DiffFormatter diffFmt = new DiffFormatter(null); |
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diffFmt.setRepository(repo); |
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try { |
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if (cached) { |
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if (oldTree == null) { |
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ObjectId head = repo.resolve(HEAD + "^{tree}"); |
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if (head == null) |
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throw new NoHeadException(JGitText.get().cannotReadTree); |
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CanonicalTreeParser p = new CanonicalTreeParser(); |
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ObjectReader reader = repo.newObjectReader(); |
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try { |
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p.reset(reader, head); |
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} finally { |
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reader.release(); |
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} |
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oldTree = p; |
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} |
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newTree = new DirCacheIterator(repo.readDirCache()); |
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} else { |
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if (oldTree == null) |
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oldTree = new DirCacheIterator(repo.readDirCache()); |
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if (newTree == null) |
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newTree = new FileTreeIterator(repo); |
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} |
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diffFmt.setPathFilter(pathFilter); |
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if (showNameAndStatusOnly) { |
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return diffFmt.scan(oldTree, newTree); |
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} else { |
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// TODO: not implemented yet
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throw new UnsupportedOperationException(); |
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} |
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} finally { |
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diffFmt.release(); |
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} |
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} |
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/** |
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* |
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* @param cached |
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* whether to view the changes you staged for the next commit |
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* @return this instance |
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*/ |
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public DiffCommand setCached(boolean cached) { |
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this.cached = cached; |
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return this; |
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} |
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/** |
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* @param pathFilter |
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* parameter, used to limit the diff to the named path |
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* @return this instance |
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*/ |
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public DiffCommand setPathFilter(TreeFilter pathFilter) { |
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this.pathFilter = pathFilter; |
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return this; |
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} |
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/** |
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* @param oldTree |
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* the previous state |
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* @return this instance |
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*/ |
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public DiffCommand setOldTree(AbstractTreeIterator oldTree) { |
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this.oldTree = oldTree; |
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return this; |
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} |
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/** |
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* @param newTree |
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* the updated state |
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* @return this instance |
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*/ |
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public DiffCommand setNewTree(AbstractTreeIterator newTree) { |
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this.newTree = newTree; |
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return this; |
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} |
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/** |
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* @param showNameAndStatusOnly |
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* whether to return only names and status of changed files |
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* @return this instance |
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*/ |
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public DiffCommand setShowNameAndStatusOnly(boolean showNameAndStatusOnly) { |
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// TODO: not implemented yet
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if (!showNameAndStatusOnly) |
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throw new UnsupportedOperationException(); |
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this.showNameAndStatusOnly = showNameAndStatusOnly; |
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return this; |
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} |
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} |
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