-if [ ! -e $ftpdir/Archive_Maintenance_In_Progress ]; then
- cd $overridedir
- denise &>/dev/null
- rm -f override.sid.all3
- for i in main contrib non-free main.debian-installer; do cat override.sid.$i >> override.sid.all3; done
- cd $masterdir
- apt-ftparchive -qq generate apt.conf.buildd
+LOCKFILE="/org/wanna-build/tmp/DB_Maintenance_In_Progress"
+
+if [ ! -e "$ftpdir/Archive_Maintenance_In_Progress" ]; then
+ if lockfile -r3 $LOCKFILE; then
+ cleanup() {
+ rm -f "$LOCKFILE"
+ }
+ trap cleanup 0