From 7478ff7804cb0d9a1e777360fdd67b7a32c353f1 Mon Sep 17 00:00:00 2001
From: Adam Vandenberg <flangy@gmail.com>
Date: Tue, 28 Jul 2009 01:54:45 -0700
Subject: [PATCH] Ensure that the Cellar exists when symlinking

Only remove brew symlinks w/ selflink.
---
 Library/Contributions/selflink.sh | 21 +++++++++++++++++----
 1 file changed, 17 insertions(+), 4 deletions(-)

diff --git a/Library/Contributions/selflink.sh b/Library/Contributions/selflink.sh
index 285af4f863..c99f3956f8 100755
--- a/Library/Contributions/selflink.sh
+++ b/Library/Contributions/selflink.sh
@@ -8,13 +8,26 @@ fi
 source_base=`pwd`
 
 if [[ $mode == install ]]; then
+    # Ensure that the Cellar exists
+    if [[ ! -e "$source_base/Cellar" ]] ; then
+        mkdir -p "$source_base/Cellar"
+    fi
+    
     ln -s "$source_base/bin/brew" "/usr/local/bin/brew";
     ln -s "$source_base/Library" "/usr/local/Library";
     ln -s "$source_base/Cellar" "/usr/local/Cellar";
-elif [[ $mode == undo ]]; then 
-    rm "/usr/local/bin/brew"
-    rm "/usr/local/Library"
-    rm "/usr/local/Cellar"
+elif [[ $mode == undo ]]; then
+    if [[ -h "/usr/local/bin/brew" ]] ; then
+        rm "/usr/local/bin/brew"
+    fi
+
+    if [[ -h "/usr/local/Library" ]] ; then
+        rm "/usr/local/Library"
+    fi
+
+    if [[ -h "/usr/local/Cellar" ]] ; then
+        rm "/usr/local/Cellar"
+    fi
 else
     echo "Unknown command: $mode";
     echo "\tselflink.sh [install] >> symlinks to /usr/local"