File debian.ais-common.preinst of Package ais

#!/bin/bash -e
#
# pre-install script

. /usr/share/debconf/confmodule

if [ -n "$DEBIAN_SCRIPT_DEBUG" ]; then set -v -x; DEBIAN_SCRIPT_TRACE=1; fi
${DEBIAN_SCRIPT_TRACE:+ echo "#42#DEBUG# RUNNING $0 $*" 1>&2 }

export PATH=$PATH:/sbin:/usr/sbin:/bin:/usr/bin
DATADIR=/var/lib/ais

# creating ais group if he isn't already there
if ! getent group ais > /dev/null; then
	# Adding system group: ais.
	addgroup --system ais > /dev/null
fi

# creating ais user if he isn't already there
if ! getent passwd ais > /dev/null; then
	# Adding system user: ais.
	adduser \
	  --system \
	  --disabled-login \
	  --ingroup ais \
	  --home $DATADIR \
	  --gecos "AIS Service User" \
	  --shell /bin/false \
	  ais > /dev/null
else
	# Try to create $DATADIR
	mkdir -p $DATADIR
	chown -R ais:ais $DATADIR
fi

db_stop

#DEBHELPER#

exit 0