Add status command to GIT api

Allow users of the GIT api to get to know the state of their
workingtree and index by adding a status command. The implementation
is mainly a wrapper around IndexDiff class. Better support for multiple
stages in the index (conflict situations) is still missing. An
appropriate change to IndexDiff and StatusCommand will come in a
subsequent commit.

Bug: 337296
Change-Id: Idb390375a68611853c1c903299ec678c89b081dc
Signed-off-by: Christian Halstrick <christian.halstrick@sap.com>
Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>

1 files changed, 134 insertions, 0 deletions

diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/api/StatusCommandTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/api/StatusCommandTest.java
new file mode 100644
index 0000000000..faca7ea3ab
--- /dev/null
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/api/StatusCommandTest.java
@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2011, Christian Halstrick <christian.halstrick@sap.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.api;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.HashSet;
+import java.util.Set;
+
+import org.eclipse.jgit.api.errors.GitAPIException;
+import org.eclipse.jgit.api.errors.NoFilepatternException;
+import org.eclipse.jgit.lib.RepositoryTestCase;
+import org.junit.Test;
+
+public class StatusCommandTest extends RepositoryTestCase {
+
+	@Test
+	public void testEmptyStatus() throws IOException {
+		Git git = new Git(db);
+
+		Status stat = git.status().call();
+		assertEquals(0, stat.getAdded().size());
+		assertEquals(0, stat.getChanged().size());
+		assertEquals(0, stat.getMissing().size());
+		assertEquals(0, stat.getModified().size());
+		assertEquals(0, stat.getRemoved().size());
+		assertEquals(0, stat.getUntracked().size());
+	}
+
+	@Test
+	public void testDifferentStates() throws IOException,
+			NoFilepatternException, GitAPIException {
+		Git git = new Git(db);
+		writeTrashFile("a", "content of a");
+		writeTrashFile("b", "content of b");
+		writeTrashFile("c", "content of c");
+		git.add().addFilepattern("a").addFilepattern("b").call();
+		Status stat = git.status().call();
+		assertEquals(set("a", "b"), stat.getAdded());
+		assertEquals(0, stat.getChanged().size());
+		assertEquals(0, stat.getMissing().size());
+		assertEquals(0, stat.getModified().size());
+		assertEquals(0, stat.getRemoved().size());
+		assertEquals(set("c"), stat.getUntracked());
+		git.commit().setMessage("initial").call();
+
+		writeTrashFile("a", "modified content of a");
+		writeTrashFile("b", "modified content of b");
+		writeTrashFile("d", "content of d");
+		git.add().addFilepattern("a").addFilepattern("d").call();
+		writeTrashFile("a", "again modified content of a");
+		stat = git.status().call();
+		assertEquals(set("d"), stat.getAdded());
+		assertEquals(set("a"), stat.getChanged());
+		assertEquals(0, stat.getMissing().size());
+		assertEquals(set("b", "a"), stat.getModified());
+		assertEquals(0, stat.getRemoved().size());
+		assertEquals(set("c"), stat.getUntracked());
+		git.add().addFilepattern(".").call();
+		git.commit().setMessage("second").call();
+
+		stat = git.status().call();
+		assertEquals(0, stat.getAdded().size());
+		assertEquals(0, stat.getChanged().size());
+		assertEquals(0, stat.getMissing().size());
+		assertEquals(0, stat.getModified().size());
+		assertEquals(0, stat.getRemoved().size());
+		assertEquals(0, stat.getUntracked().size());
+
+		deleteTrashFile("a");
+		assertFalse(new File(git.getRepository().getWorkTree(), "a").exists());
+		git.add().addFilepattern("a").setUpdate(true).call();
+		writeTrashFile("a", "recreated content of a");
+		stat = git.status().call();
+		assertEquals(0, stat.getAdded().size());
+		assertEquals(0, stat.getChanged().size());
+		assertEquals(0, stat.getMissing().size());
+		assertEquals(0, stat.getModified().size());
+		assertEquals(set("a"), stat.getRemoved());
+		assertEquals(set("a"), stat.getUntracked());
+		git.commit().setMessage("t").call();
+
+	}
+
+	public static Set<String> set(String... elements) {
+		Set<String> ret = new HashSet<String>();
+		for (String element : elements)
+			ret.add(element);
+		return ret;
+	}
+}