From c332d9a3d4d9485cfe60fb8dd9db7dbde971642c Mon Sep 17 00:00:00 2001
From: James Moger <james.moger@gitblit.com>
Date: Tue, 10 Nov 2015 08:58:35 -0500
Subject: [PATCH] Do not display fork button if target repo already exists
 (fixes #944)

---
 src/main/java/com/gitblit/wicket/pages/RepositoryPage.java | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/main/java/com/gitblit/wicket/pages/RepositoryPage.java b/src/main/java/com/gitblit/wicket/pages/RepositoryPage.java
index 9639a0c1..7e164a8c 100644
--- a/src/main/java/com/gitblit/wicket/pages/RepositoryPage.java
+++ b/src/main/java/com/gitblit/wicket/pages/RepositoryPage.java
@@ -64,6 +64,7 @@ import com.gitblit.utils.ArrayUtils;
 import com.gitblit.utils.BugtraqProcessor;
 import com.gitblit.utils.DeepCopier;
 import com.gitblit.utils.JGitUtils;
+import com.gitblit.utils.ModelUtils;
 import com.gitblit.utils.RefLogUtils;
 import com.gitblit.utils.StringUtils;
 import com.gitblit.wicket.CacheControl;
@@ -370,8 +371,10 @@ public abstract class RepositoryPage extends RootPage {
 			add(new ExternalLink("myForkLink", "").setVisible(false));
 		} else {
 			String fork = app().repositories().getFork(user.username, model.name);
+			String userRepo = ModelUtils.getPersonalPath(user.username) + "/" + StringUtils.stripDotGit(StringUtils.getLastPathElement(model.name));
+			boolean hasUserRepo = app().repositories().hasRepository(userRepo);
 			boolean hasFork = fork != null;
-			boolean canFork = user.canFork(model) && model.hasCommits;
+			boolean canFork = user.canFork(model) && model.hasCommits && !hasUserRepo;
 
 			if (hasFork || !canFork) {
 				// user not allowed to fork or fork already exists or repo forbids forking
-- 
2.39.5