Add isRebase to API of BranchConfig

Change-Id: I9819f49410e30d32c2157db0556a0dd6a0bcc5a4
Signed-off-by: Robin Stocker <robin@nibor.org>

org.eclipse.jgit.test/tst/org/eclipse/jgit/lib/BranchConfigTest.java

@@ -45,7 +45,9 @@
 package org.eclipse.jgit.lib;
 
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertTrue;
 
 import org.eclipse.jgit.errors.ConfigInvalidException;
 import org.junit.Test;
@@ -144,6 +146,20 @@ public class BranchConfigTest {
 				branchConfig.getTrackingBranch());
 	}
 
+	@Test
+	public void isRebase() {
+		Config c = parse("" //
+				+ "[branch \"undefined\"]\n"
+				+ "[branch \"false\"]\n"
+				+ "  rebase = false\n"
+				+ "[branch \"true\"]\n"
+				+ "  rebase = true\n");
+
+		assertFalse(new BranchConfig(c, "undefined").isRebase());
+		assertFalse(new BranchConfig(c, "false").isRebase());
+		assertTrue(new BranchConfig(c, "true").isRebase());
+	}
+
 	private static Config parse(final String content) {
 		final Config c = new Config(null);
 		try {

org.eclipse.jgit/src/org/eclipse/jgit/lib/BranchConfig.java

@@ -134,9 +134,17 @@ public class BranchConfig {
 	 * @since 3.5
 	 */
 	public String getMerge() {
-		return config.getString(
-				ConfigConstants.CONFIG_BRANCH_SECTION, branchName,
-				ConfigConstants.CONFIG_KEY_MERGE);
+		return config.getString(ConfigConstants.CONFIG_BRANCH_SECTION,
+				branchName, ConfigConstants.CONFIG_KEY_MERGE);
+	}
+
+	/**
+	 * @return {@code true} if the branch is configured to be rebased
+	 * @since 3.5
+	 */
+	public boolean isRebase() {
+		return config.getBoolean(ConfigConstants.CONFIG_BRANCH_SECTION,
+				branchName, ConfigConstants.CONFIG_KEY_REBASE, false);
 	}
 
 	/**