Merge "Fix tag sorting in PlotWalk"

org.eclipse.jgit/src/org/eclipse/jgit/revplot/PlotCommit.java

@@ -65,19 +65,16 @@ public class PlotCommit<L extends PlotLane> extends RevCommit {
 
 	PlotCommit[] children;
 
-	final Ref[] refs;
+	Ref[] refs;
 
 	/**
 	 * Create a new commit.
 	 *
 	 * @param id
 	 *            the identity of this commit.
-	 * @param tags
-	 *            the tags associated with this commit, null for no tags
 	 */
-	protected PlotCommit(final AnyObjectId id, final Ref[] tags) {
+	protected PlotCommit(final AnyObjectId id) {
 		super(id);
-		this.refs = tags;
 		passingLanes = NO_LANES;
 		children = NO_CHILDREN;
 	}

org.eclipse.jgit/src/org/eclipse/jgit/revplot/PlotWalk.java

@@ -45,12 +45,15 @@
 package org.eclipse.jgit.revplot;
 
 import java.io.IOException;
+import java.util.Arrays;
 import java.util.Collection;
 import java.util.Comparator;
 import java.util.Map;
 import java.util.Set;
 
 import org.eclipse.jgit.JGitText;
+import org.eclipse.jgit.errors.IncorrectObjectTypeException;
+import org.eclipse.jgit.errors.MissingObjectException;
 import org.eclipse.jgit.lib.AnyObjectId;
 import org.eclipse.jgit.lib.PersonIdent;
 import org.eclipse.jgit.lib.Ref;
@@ -93,23 +96,26 @@ public class PlotWalk extends RevWalk {
 
 	@Override
 	protected RevCommit createCommit(final AnyObjectId id) {
-		return new PlotCommit(id, getTags(id));
+		return new PlotCommit(id);
 	}
 
-	/**
+	@Override
-	 * @param commitId
+	public RevCommit next() throws MissingObjectException,
-	 * @return return the list of knows tags referring to this commit
+			IncorrectObjectTypeException, IOException {
-	 */
+		PlotCommit<?> pc = (PlotCommit) super.next();
-	protected Ref[] getTags(final AnyObjectId commitId) {
+		if (pc != null)
+			pc.refs = getTags(pc);
+		return pc;
+	}
+
+	private Ref[] getTags(final AnyObjectId commitId) {
 		Collection<Ref> list = reverseRefMap.get(commitId);
 		Ref[] tags;
 		if (list == null)
 			tags = null;
 		else {
 			tags = list.toArray(new Ref[list.size()]);
-			// TODO hotfix, this results in a loop and consequently stack overflow
+			Arrays.sort(tags, new PlotRefComparator());
-			// when opening the history view in EGit
-			// Arrays.sort(tags, new PlotRefComparator());
 		}
 		return tags;
 	}