Refactor to expose ManifestParser.

The repo xml manifest parser used in RepoCommand could also be useful for
others, so refactor to make it public.

Also this breaks backward compatibility slightly.

Change-Id: I5001bd2fe77541109fe32dbe2597a065e6ad585e
Signed-off-by: Yuxuan 'fishy' Wang <fishywang@google.com>

2 files changed, 114 insertions, 0 deletions

diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/gitrepo/ManifestParserTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/gitrepo/ManifestParserTest.java
new file mode 100644
index 0000000000..1005b39ec6
--- /dev/null
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/gitrepo/ManifestParserTest.java
@@ -0,0 +1,112 @@
+/*
+ * Copyright (C) 2015, Google Inc.
+ * 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.gitrepo;
+
+import static org.junit.Assert.assertTrue;
+
+import java.io.StringBufferInputStream;
+import java.util.HashSet;
+import java.util.Set;
+
+import org.junit.Test;
+
+public class ManifestParserTest {
+
+	@Test
+	public void testManifestParser() throws Exception {
+		String baseUrl = "https://git.google.com/";
+		StringBuilder xmlContent = new StringBuilder();
+		Set<String> results = new HashSet<String>();
+		xmlContent.append("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n")
+			.append("<manifest>")
+			.append("<remote name=\"remote1\" fetch=\".\" />")
+			.append("<default revision=\"master\" remote=\"remote1\" />")
+			.append("<project path=\"foo\" name=\"")
+			.append("foo")
+			.append("\" groups=\"a,test\" />")
+			.append("<project path=\"bar\" name=\"")
+			.append("bar")
+			.append("\" groups=\"notdefault\" />")
+			.append("<project path=\"foo/a\" name=\"")
+			.append("a")
+			.append("\" groups=\"a\" />")
+			.append("<project path=\"b\" name=\"")
+			.append("b")
+			.append("\" groups=\"b\" />")
+			.append("</manifest>");
+
+		ManifestParser parser = new ManifestParser(
+				null, null, "master", baseUrl, null, null);
+		parser.read(new StringBufferInputStream(xmlContent.toString()));
+		// Unfiltered projects should have them all.
+		results.clear();
+		results.add("foo");
+		results.add("bar");
+		results.add("foo/a");
+		results.add("b");
+		for (RepoProject proj : parser.getProjects()) {
+			String msg = String.format(
+					"project \"%s\" should be included in unfiltered projects",
+					proj.path);
+			assertTrue(msg, results.contains(proj.path));
+			results.remove(proj.path);
+		}
+		assertTrue(
+				"Unfiltered projects shouldn't contain any unexpected results",
+				results.isEmpty());
+		// Filtered projects should have foo & b
+		results.clear();
+		results.add("foo");
+		results.add("b");
+		for (RepoProject proj : parser.getFilteredProjects()) {
+			String msg = String.format(
+					"project \"%s\" should be included in filtered projects",
+					proj.path);
+			assertTrue(msg, results.contains(proj.path));
+			results.remove(proj.path);
+		}
+		assertTrue(
+				"Filtered projects shouldn't contain any unexpected results",
+				results.isEmpty());
+	}
+}
diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/gitrepo/RepoCommandTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/gitrepo/RepoCommandTest.java
index 3d86cfd5bb..0caf9c6c27 100644
--- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/gitrepo/RepoCommandTest.java
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/gitrepo/RepoCommandTest.java
@@ -49,6 +49,8 @@ import static org.junit.Assert.assertTrue;
 import java.io.BufferedReader;
 import java.io.File;
 import java.io.FileReader;
+import java.util.HashSet;
+import java.util.Set;
 
 import org.eclipse.jgit.api.Git;
 import org.eclipse.jgit.junit.JGitTestUtil;