From 2d843b8eb0ebaf693a2c65b7b95ba13ce700ec6c Mon Sep 17 00:00:00 2001
From: Peter Palfrader <peter@palfrader.org>
Date: Tue, 23 Mar 2010 16:10:01 +0100
Subject: [PATCH] patch .bashrc only conditionally

---
 input/howto/dchroot.creole | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/input/howto/dchroot.creole b/input/howto/dchroot.creole
index d2128dc..1f38d61 100644
--- a/input/howto/dchroot.creole
+++ b/input/howto/dchroot.creole
@@ -26,7 +26,7 @@ chroot $DIST
 echo $DIST > /etc/debian_chroot
 
 # change root's .bashrc:
- patch /root/.bashrc << 'EOF'
+ grep -q debian.chroot /etc/bash.bashrc || patch /root/.bashrc << 'EOF'
 @@ -3,2 +3,6 @@
  export PS1='\h:\w\$ '
 +if [ -e /etc/debian_chroot ]; then
-- 
2.20.1