148 lines
4.4 KiB
Bash
148 lines
4.4 KiB
Bash
#!/bin/sh
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################################################################################
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#
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# Rattail -- Retail Software Framework
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# Copyright © 2010-2018 Lance Edgar
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#
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# This file is part of Rattail.
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#
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# Rattail is free software: you can redistribute it and/or modify it under the
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# terms of the GNU General Public License as published by the Free Software
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# Foundation, either version 3 of the License, or (at your option) any later
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# version.
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#
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# Rattail is distributed in the hope that it will be useful, but WITHOUT ANY
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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# details.
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#
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# You should have received a copy of the GNU General Public License along with
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# Rattail. If not, see <http://www.gnu.org/licenses/>.
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#
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################################################################################
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#
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# Generic 'init' script for all Rattail daemons. Originally based on the
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# skeleton file from a Debian 6 system, but tweaked plenty since...
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#
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# NOTE: The "calling" script *must* define $NAME and $DESC (at least).
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#
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################################################################################
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# Files in /etc/default and/or the "calling" init script may define any of the
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# following as necessary, to override:
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SCRIPTNAME=${SCRIPTNAME:-"/etc/init.d/$NAME"}
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PIDFILE=${PIDFILE:-"/var/run/rattail/$NAME.pid"}
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PYTHON=${PYTHON:-"/usr/bin/python"}
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RATTAIL=${RATTAIL:-"/usr/local/bin/rattail"}
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RATTAIL_ARGS=${RATTAIL_ARGS:-""}
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RATTAIL_SUBCMD=${RATTAIL_SUBCMD:-"${NAME##*-}"}
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RATTAIL_SUBCMD_ARGS=${RATTAIL_SUBCMD_ARGS:-""}
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USER=${USER:-"rattail"}
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GROUP=${GROUP:-"rattail"}
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# Read configuration variable files if present.
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[ -r /etc/default/rattail ] && . /etc/default/rattail
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[ -r /etc/default/$NAME ] && . /etc/default/$NAME
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# Load the VERBOSE setting and other rcS variables.
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. /lib/init/vars.sh
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# Define LSB log_* functions.
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# Depend on lsb-base (>= 3.2-14) to ensure that this file is present
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# and status_of_proc is working.
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. /lib/lsb/init-functions
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create_pid_dir() {
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PIDDIR=`dirname "$PIDFILE"`
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if [ ! -d "$PIDDIR" ]; then
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mkdir --parents "$PIDDIR"
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fi
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chown $USER:$GROUP "$PIDDIR"
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}
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#
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# Function that starts the daemon/service
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#
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do_start()
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{
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# Return
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# 0 if daemon has been started
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# 1 if daemon was already running
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# 2 if daemon could not be started
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create_pid_dir
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start-stop-daemon --start --pidfile "$PIDFILE" --exec "$PYTHON" --user $USER --test --quiet >/dev/null \
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|| return 1
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start-stop-daemon --start --pidfile "$PIDFILE" --exec "$PYTHON" --startas "$RATTAIL" --chuid $USER --group $GROUP --quiet -- \
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$RATTAIL_ARGS $RATTAIL_SUBCMD --pidfile="$PIDFILE" $RATTAIL_SUBCMD_ARGS start \
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|| return 2
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}
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#
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# Function that stops the daemon/service
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#
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do_stop()
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{
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# Return
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# 0 if daemon has been stopped
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# 1 if daemon was already stopped
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# 2 if daemon could not be stopped
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# other if a failure occurred
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/usr/local/bin/check-rattail-daemon "$NAME" >/dev/null \
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|| return 1
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sudo -u $USER "$RATTAIL" $RATTAIL_ARGS $RATTAIL_SUBCMD --pidfile="$PIDFILE" $RATTAIL_SUBCMD_ARGS stop >/dev/null 2>&1 \
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|| return 2
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}
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case "$1" in
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start)
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[ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$NAME"
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do_start
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case "$?" in
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0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
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2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
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esac
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;;
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stop)
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[ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME"
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do_stop
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case "$?" in
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0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
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2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
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esac
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;;
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status)
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/usr/local/bin/check-rattail-daemon "$NAME" && exit 0 || exit $?
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;;
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restart|force-reload)
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log_daemon_msg "Restarting $DESC" "$NAME"
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do_stop
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case "$?" in
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0|1)
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do_start
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case "$?" in
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0) log_end_msg 0 ;;
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1) log_end_msg 1 ;; # Old process is still running
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*) log_end_msg 1 ;; # Failed to start
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esac
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;;
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*)
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# Failed to stop
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log_end_msg 1
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;;
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esac
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;;
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*)
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echo "Usage: $SCRIPTNAME {start|stop|status|restart|force-reload}" >&2
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exit 3
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;;
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esac
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:
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