make a backup even when modifying non-combined rules files

generate a warning about editing non-combined rules files
ensure that the warning is the last output from the 'make install' process


git-svn-id: http://svn.digium.com/svn/zaptel/branches/1.2@1079 5390a7c7-147a-4af0-8ec9-7488f05a26cb

1 files changed, 19 insertions, 5 deletions

diff --git a/build_tools/genmodconf b/build_tools/genmodconf
index cafc869..32435ee 100755
--- a/build_tools/genmodconf
+++ b/build_tools/genmodconf
@@ -36,7 +36,7 @@ if [ "${1}" == "linux24" ]; then
 	target=${2}/etc/modutils/zaptel
     elif [ -f ${2}/etc/modules.conf ]; then
 	target=${2}/etc/modules.conf
-	backup=1
+	combined=1
     else
 	echo No suitable location for module rules can be found... exiting.
 	exit 1
@@ -52,10 +52,10 @@ elif [ "${1}" == "linux26" ]; then
 	target=${2}/etc/modules.d/zaptel
     elif [ -f ${2}/etc/modprobe.conf ]; then
 	target=${2}/etc/modprobe.conf
-	backup=1
+	combined=1
     elif [ -f ${2}/etc/conf.modules ]; then
 	target=${2}/etc/conf.modules
-	backup=1
+	combined=1
     else
 	echo No suitable location for module rules can be found... exiting.
 	exit 1
@@ -65,13 +65,15 @@ else
     exit 1
 fi
 
-if [ -n "${backup}" ]; then
+if [ -n "${combined}" ]; then
     if [ -f ${target} ]; then
 	mv ${target} ${target}.bak
 	cat ${target}.bak | grep -v "alias char-major-250" | grep -v "alias char-major-196" > ${target}	
     fi
 else
-    rm -f ${target}
+    if [ -f ${target} ]; then
+	mv ${target} ${target}.bak
+    fi
     echo "# automatically generated file; do not edit" > ${target}
 fi
 
@@ -98,3 +100,15 @@ if ! grep -q "alias wct2xxp" ${target}; then
     echo "alias wct2xxp wct4xxp" >> ${target};
 fi;
     
+if [ -z "${combined}" ]; then
+    echo "***"
+    echo "*** WARNING:"
+    echo "*** If you had custom settings in ${target},"
+    echo "*** they have been moved to ${target}.bak."
+    echo "***"
+    echo "*** In the future, do not edit ${target}, but"
+    echo "*** instead put your changes in another file"
+    echo "*** in the same directory so that they will not"
+    echo "*** be overwritten by future Zaptel updates."
+    echo "***"
+fi