Dont clone already existing repository

zsh/gclone.zsh

@@ -18,14 +18,20 @@ if [ -d "$GCLONE_PATH" ]; then
             repo=${repo%.*}
         fi
 
+        # Final path to the repo
+        repo_path=$GCLONE_PATH/$server/$user
+
+        if [ -d $repo_path ]; then
+            echo "Repository already exists"
+            return 1
+        fi
+
         tempdir=`mktemp -d`
         git clone $1 $tempdir/$repo
 
         # If the clone worked, move the repo in the good place
         if [ $? -eq 0 ]; then
 
-            # Final path to the repo
-            repo_path=$GCLONE_PATH/$server/$user
             mkdir -p $repo_path
 
             mv $tempdir/$repo $repo_path