From 84f175620774011e55634d24dd39834eb31d394a Mon Sep 17 00:00:00 2001
From: Tony Duckles <tony@nynim.org>
Date: Fri, 8 Mar 2013 17:36:18 -0600
Subject: [PATCH] bin/ack-wrapper: Correctly escape user-supplied args

When using "ack needle foo*.txt", the shell will expand that
wildcard and if any of the matching files contain spaces (or other
special chars that need escaping) those won't be passed correctly
to 'ack' when using the old-style "command ack $ackrc $*" calling
method. We need to single-quote wrap any arguments to ensure we
don't need to escape-out any spaces/exclamation/question chars.
---
 bin/ack-wrapper | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/bin/ack-wrapper b/bin/ack-wrapper
index 49e5386..7459a2c 100755
--- a/bin/ack-wrapper
+++ b/bin/ack-wrapper
@@ -5,7 +5,8 @@
 
 PWD=$(pwd)
 HOME=~
-ACKARGS=""
+ack=$(type -P ack)
+ackrc=""
 
 match=""
 dir="$PWD"
@@ -14,7 +15,7 @@ while [ "$dir" != "/" -a "$match" = "" ]; do
         if [ "$dir" != "$HOME" ]; then
             match=1
             echo "(Include: ${dir}/.ackrc)"
-            ACKARGS="$(egrep "^[^#]" "${dir}/.ackrc" | xargs) $ACKARGS"
+            ackrc=$(egrep "^[^#]" "${dir}/.ackrc" | tr '\n' ' ')
         else
             match=0
         fi
@@ -23,4 +24,9 @@ while [ "$dir" != "/" -a "$match" = "" ]; do
     fi
 done
 
-command ack $ACKARGS $*
+# Add quote-wrapping for any additional args to ensure proper passing to
+# real 'ack'.
+for arg in "$@"; do ackrc="${ackrc} '${arg}'"; done
+
+# Run the final command
+eval "${ack} ${ackrc}"
-- 
2.47.1