From 2d58e62108b6c749607fae10419cc510c55f6088 Mon Sep 17 00:00:00 2001
From: James Moger <james.moger@gitblit.com>
Date: Tue, 18 Sep 2012 13:20:31 -0400
Subject: [PATCH] Merge pull request #37 from ajermakovics/master

---
 src/com/gitblit/wicket/pages/CommitDiffPage.java |  346 ++++++++++++++++++++++++++++++++-------------------------
 1 files changed, 195 insertions(+), 151 deletions(-)

diff --git a/src/com/gitblit/wicket/pages/CommitDiffPage.java b/src/com/gitblit/wicket/pages/CommitDiffPage.java
index dbf981b..585ce8e 100644
--- a/src/com/gitblit/wicket/pages/CommitDiffPage.java
+++ b/src/com/gitblit/wicket/pages/CommitDiffPage.java
@@ -1,151 +1,195 @@
-/*
- * Copyright 2011 gitblit.com.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package com.gitblit.wicket.pages;
-
-import java.util.ArrayList;
-import java.util.List;
-
-import org.apache.wicket.PageParameters;
-import org.apache.wicket.markup.html.basic.Label;
-import org.apache.wicket.markup.html.link.BookmarkablePageLink;
-import org.apache.wicket.markup.repeater.Item;
-import org.apache.wicket.markup.repeater.data.DataView;
-import org.apache.wicket.markup.repeater.data.ListDataProvider;
-import org.eclipse.jgit.diff.DiffEntry.ChangeType;
-import org.eclipse.jgit.lib.Repository;
-import org.eclipse.jgit.revwalk.RevCommit;
-
-import com.gitblit.GitBlit;
-import com.gitblit.Keys;
-import com.gitblit.models.PathModel.PathChangeModel;
-import com.gitblit.models.SubmoduleModel;
-import com.gitblit.utils.DiffUtils;
-import com.gitblit.utils.DiffUtils.DiffOutputType;
-import com.gitblit.utils.JGitUtils;
-import com.gitblit.wicket.WicketUtils;
-import com.gitblit.wicket.panels.CommitHeaderPanel;
-import com.gitblit.wicket.panels.CommitLegendPanel;
-import com.gitblit.wicket.panels.LinkPanel;
-
-public class CommitDiffPage extends RepositoryPage {
-
-	public CommitDiffPage(PageParameters params) {
-		super(params);
-
-		Repository r = getRepository();
-		RevCommit commit = getCommit();
-		DiffOutputType diffType = DiffOutputType.forName(GitBlit.getString(Keys.web.diffStyle,
-				DiffOutputType.GITBLIT.name()));
-		String diff = DiffUtils.getCommitDiff(r, commit, diffType);
-
-		List<String> parents = new ArrayList<String>();
-		if (commit.getParentCount() > 0) {
-			for (RevCommit parent : commit.getParents()) {
-				parents.add(parent.name());
-			}
-		}
-
-		// commit page links
-		if (parents.size() == 0) {
-			add(new Label("parentLink", getString("gb.none")));
-		} else {
-			add(new LinkPanel("parentLink", null, parents.get(0).substring(0, 8),
-					CommitDiffPage.class, newCommitParameter(parents.get(0))));
-		}
-		add(new BookmarkablePageLink<Void>("patchLink", PatchPage.class,
-				WicketUtils.newObjectParameter(repositoryName, objectId)));
-		add(new BookmarkablePageLink<Void>("commitLink", CommitPage.class,
-				WicketUtils.newObjectParameter(repositoryName, objectId)));
-
-		add(new CommitHeaderPanel("commitHeader", repositoryName, commit));
-
-		// changed paths list
-		List<PathChangeModel> paths = JGitUtils.getFilesInCommit(r, commit);
-		add(new CommitLegendPanel("commitLegend", paths));
-		ListDataProvider<PathChangeModel> pathsDp = new ListDataProvider<PathChangeModel>(paths);
-		DataView<PathChangeModel> pathsView = new DataView<PathChangeModel>("changedPath", pathsDp) {
-			private static final long serialVersionUID = 1L;
-			int counter;
-
-			public void populateItem(final Item<PathChangeModel> item) {
-				final PathChangeModel entry = item.getModelObject();
-				Label changeType = new Label("changeType", "");
-				WicketUtils.setChangeTypeCssClass(changeType, entry.changeType);
-				setChangeTypeTooltip(changeType, entry.changeType);
-				item.add(changeType);
-
-				boolean hasSubmodule = false;
-				String submodulePath = null;
-				if (entry.isTree()) {
-					// tree
-					item.add(new LinkPanel("pathName", null, entry.path, TreePage.class,
-							WicketUtils
-									.newPathParameter(repositoryName, entry.commitId, entry.path)));
-				} else if (entry.isSubmodule()) {
-					// submodule
-					String submoduleId = entry.objectId;						
-					SubmoduleModel submodule = getSubmodule(entry.path);
-					submodulePath = submodule.gitblitPath;
-					hasSubmodule = submodule.hasSubmodule;
-					
-					item.add(new LinkPanel("pathName", "list", entry.path + " @ " +
-							getShortObjectId(submoduleId), TreePage.class,
-							WicketUtils
-									.newPathParameter(submodulePath, submoduleId, "")).setEnabled(hasSubmodule));
-				} else {
-					// blob
-					item.add(new LinkPanel("pathName", "list", entry.path, BlobPage.class,
-							WicketUtils
-									.newPathParameter(repositoryName, entry.commitId, entry.path)));
-				}
-
-				// quick links
-				if (entry.isSubmodule()) {
-					// submodule					
-					item.add(new BookmarkablePageLink<Void>("patch", PatchPage.class, WicketUtils
-							.newPathParameter(submodulePath, entry.objectId, entry.path)).setEnabled(false));
-					item.add(new BookmarkablePageLink<Void>("view", CommitPage.class, WicketUtils
-							.newObjectParameter(submodulePath, entry.objectId)).setEnabled(hasSubmodule));
-					item.add(new BookmarkablePageLink<Void>("blame", BlamePage.class, WicketUtils
-							.newPathParameter(submodulePath, entry.objectId, entry.path)).setEnabled(false));
-					item.add(new BookmarkablePageLink<Void>("history", HistoryPage.class, WicketUtils
-							.newPathParameter(submodulePath, entry.objectId, entry.path))
-							.setEnabled(hasSubmodule));
-				} else {
-					// tree or blob
-					item.add(new BookmarkablePageLink<Void>("patch", PatchPage.class, WicketUtils
-							.newPathParameter(repositoryName, entry.commitId, entry.path)));
-					item.add(new BookmarkablePageLink<Void>("view", BlobPage.class, WicketUtils
-							.newPathParameter(repositoryName, entry.commitId, entry.path)));
-					item.add(new BookmarkablePageLink<Void>("blame", BlamePage.class, WicketUtils
-							.newPathParameter(repositoryName, entry.commitId, entry.path)));
-					item.add(new BookmarkablePageLink<Void>("history", HistoryPage.class, WicketUtils
-							.newPathParameter(repositoryName, entry.commitId, entry.path))
-							.setEnabled(!entry.changeType.equals(ChangeType.ADD)));
-				}
-				WicketUtils.setAlternatingBackground(item, counter);
-				counter++;
-			}
-		};
-		add(pathsView);
-		add(new Label("diffText", diff).setEscapeModelStrings(false));
-	}
-
-	@Override
-	protected String getPageName() {
-		return getString("gb.commitdiff");
-	}
-}
+/*
+ * Copyright 2011 gitblit.com.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.gitblit.wicket.pages;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import java.text.MessageFormat;
+
+import org.apache.wicket.PageParameters;
+import org.apache.wicket.markup.html.basic.Label;
+import org.apache.wicket.markup.html.link.BookmarkablePageLink;
+import org.apache.wicket.markup.repeater.Item;
+import org.apache.wicket.markup.repeater.data.DataView;
+import org.apache.wicket.markup.repeater.data.ListDataProvider;
+import org.eclipse.jgit.diff.DiffEntry.ChangeType;
+import org.eclipse.jgit.lib.Repository;
+import org.eclipse.jgit.revwalk.RevCommit;
+
+import com.gitblit.GitBlit;
+import com.gitblit.Keys;
+import com.gitblit.models.PathModel.PathChangeModel;
+import com.gitblit.models.SubmoduleModel;
+import com.gitblit.utils.DiffUtils;
+import com.gitblit.utils.DiffUtils.DiffOutputType;
+import com.gitblit.utils.JGitUtils;
+import com.gitblit.wicket.WicketUtils;
+import com.gitblit.wicket.panels.CommitHeaderPanel;
+import com.gitblit.wicket.panels.CommitLegendPanel;
+import com.gitblit.wicket.panels.LinkPanel;
+
+public class CommitDiffPage extends RepositoryPage {
+
+	public CommitDiffPage(PageParameters params) {
+		super(params);
+
+		Repository r = getRepository();
+
+		DiffOutputType diffType = DiffOutputType.forName(GitBlit.getString(Keys.web.diffStyle,
+				DiffOutputType.GITBLIT.name()));
+
+		RevCommit commit = null, otherCommit = null;
+
+		if( objectId.contains("..") )
+		{
+			String[] parts = objectId.split("\\.\\.");
+			commit = getCommit(r, parts[0]);
+			otherCommit = getCommit(r, parts[1]);
+		}
+		else
+		{
+			commit = getCommit();
+		}
+
+		String diff;
+
+		if(otherCommit == null)
+		{
+			diff = DiffUtils.getCommitDiff(r, commit, diffType);
+		}
+		else
+		{
+			diff = DiffUtils.getDiff(r, commit, otherCommit, diffType);
+		}
+
+		List<String> parents = new ArrayList<String>();
+		if (commit.getParentCount() > 0) {
+			for (RevCommit parent : commit.getParents()) {
+				parents.add(parent.name());
+			}
+		}
+
+		// commit page links
+		if (parents.size() == 0) {
+			add(new Label("parentLink", getString("gb.none")));
+		} else {
+			add(new LinkPanel("parentLink", null, parents.get(0).substring(0, 8),
+					CommitDiffPage.class, newCommitParameter(parents.get(0))));
+		}
+		add(new BookmarkablePageLink<Void>("patchLink", PatchPage.class,
+				WicketUtils.newObjectParameter(repositoryName, objectId)));
+		add(new BookmarkablePageLink<Void>("commitLink", CommitPage.class,
+				WicketUtils.newObjectParameter(repositoryName, objectId)));
+
+		add(new CommitHeaderPanel("commitHeader", repositoryName, commit));
+
+		// changed paths list
+		List<PathChangeModel> paths;
+
+		if( otherCommit == null )
+		{
+			paths = JGitUtils.getFilesInCommit(r, commit);
+		}
+		else
+		{
+			paths = JGitUtils.getFilesInCommit(r, otherCommit);
+		}
+
+		add(new CommitLegendPanel("commitLegend", paths));
+		ListDataProvider<PathChangeModel> pathsDp = new ListDataProvider<PathChangeModel>(paths);
+		DataView<PathChangeModel> pathsView = new DataView<PathChangeModel>("changedPath", pathsDp) {
+			private static final long serialVersionUID = 1L;
+			int counter;
+
+			public void populateItem(final Item<PathChangeModel> item) {
+				final PathChangeModel entry = item.getModelObject();
+				Label changeType = new Label("changeType", "");
+				WicketUtils.setChangeTypeCssClass(changeType, entry.changeType);
+				setChangeTypeTooltip(changeType, entry.changeType);
+				item.add(changeType);
+
+				boolean hasSubmodule = false;
+				String submodulePath = null;
+				if (entry.isTree()) {
+					// tree
+					item.add(new LinkPanel("pathName", null, entry.path, TreePage.class,
+							WicketUtils
+									.newPathParameter(repositoryName, entry.commitId, entry.path)));
+				} else if (entry.isSubmodule()) {
+					// submodule
+					String submoduleId = entry.objectId;
+					SubmoduleModel submodule = getSubmodule(entry.path);
+					submodulePath = submodule.gitblitPath;
+					hasSubmodule = submodule.hasSubmodule;
+
+					item.add(new LinkPanel("pathName", "list", entry.path + " @ " +
+							getShortObjectId(submoduleId), TreePage.class,
+							WicketUtils
+									.newPathParameter(submodulePath, submoduleId, "")).setEnabled(hasSubmodule));
+				} else {
+					// blob
+					item.add(new LinkPanel("pathName", "list", entry.path, BlobPage.class,
+							WicketUtils
+									.newPathParameter(repositoryName, entry.commitId, entry.path)));
+				}
+
+				// quick links
+				if (entry.isSubmodule()) {
+					// submodule
+					item.add(new BookmarkablePageLink<Void>("patch", PatchPage.class, WicketUtils
+							.newPathParameter(submodulePath, entry.objectId, entry.path)).setEnabled(false));
+					item.add(new BookmarkablePageLink<Void>("view", CommitPage.class, WicketUtils
+							.newObjectParameter(submodulePath, entry.objectId)).setEnabled(hasSubmodule));
+					item.add(new BookmarkablePageLink<Void>("blame", BlamePage.class, WicketUtils
+							.newPathParameter(submodulePath, entry.objectId, entry.path)).setEnabled(false));
+					item.add(new BookmarkablePageLink<Void>("history", HistoryPage.class, WicketUtils
+							.newPathParameter(submodulePath, entry.objectId, entry.path))
+							.setEnabled(hasSubmodule));
+				} else {
+					// tree or blob
+					item.add(new BookmarkablePageLink<Void>("patch", PatchPage.class, WicketUtils
+							.newPathParameter(repositoryName, entry.commitId, entry.path)));
+					item.add(new BookmarkablePageLink<Void>("view", BlobPage.class, WicketUtils
+							.newPathParameter(repositoryName, entry.commitId, entry.path)));
+					item.add(new BookmarkablePageLink<Void>("blame", BlamePage.class, WicketUtils
+							.newPathParameter(repositoryName, entry.commitId, entry.path)));
+					item.add(new BookmarkablePageLink<Void>("history", HistoryPage.class, WicketUtils
+							.newPathParameter(repositoryName, entry.commitId, entry.path))
+							.setEnabled(!entry.changeType.equals(ChangeType.ADD)));
+				}
+				WicketUtils.setAlternatingBackground(item, counter);
+				counter++;
+			}
+		};
+		add(pathsView);
+		add(new Label("diffText", diff).setEscapeModelStrings(false));
+	}
+
+	@Override
+	protected String getPageName() {
+		return getString("gb.commitdiff");
+	}
+
+	private RevCommit getCommit(Repository r, String rev)
+	{
+		RevCommit otherCommit = JGitUtils.getCommit(r, rev);
+		if (otherCommit == null) {
+			error(MessageFormat.format(getString("gb.failedToFindCommit"), rev, repositoryName, getPageName()), true);
+		}
+		return otherCommit;
+	}
+}

--
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