From 7dc9e82d8a13fc75f12ea27efc79c2b69f5d4034 Mon Sep 17 00:00:00 2001
From: Thomas DEBESSE <thomas.debesse@gmail.com>
Date: Fri, 3 Aug 2012 21:29:59 +0200
Subject: [PATCH] bugfix: do not use 158 if not set, defaults to 80

---
 liquidprompt.bash | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/liquidprompt.bash b/liquidprompt.bash
index 731c6fc..475b9df 100755
--- a/liquidprompt.bash
+++ b/liquidprompt.bash
@@ -293,7 +293,14 @@ __shorten_path()
 
     local p=$(echo "$1" | sed -e "s|$HOME|~|")
     local len="${#p}"
-    local max_len=$(($COLUMNS*$len_percent/100))
+
+    if [ -z "$COLUMNS" ]
+    then
+        local columns=80
+    else
+        local columns=$COLUMNS
+    fi
+    local max_len=$(($columns*$len_percent/100))
     local mask_len="${#mask}"
 
     if [[ "$len" -gt "$max_len" ]]