mirror of
https://github.com/weewx/weewx.git
synced 2026-04-19 17:16:56 -04:00
153 lines
3.9 KiB
Bash
Executable File
153 lines
3.9 KiB
Bash
Executable File
#! /bin/sh
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# $Id$
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# Author: Tom Keffer <keffer@gmail.com>
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# Startup script for Debian derivatives
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#
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# the skeleton script in debian 6 does not work properly in package scripts.
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# the return/exit codes cause {pre|post}{inst|rm} to fail regardless of the
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# script completion status. this script exits explicitly.
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#
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# the skeleton script also does not work properly with python applications,
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# as the lsb tools cannot distinguish between the python interpreter and
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# the python code that was invoked. this script uses ps and grep to look
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# for the application signature instead of using the lsb tools to determine
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# whether the app is running.
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#
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### BEGIN INIT INFO
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# Provides: weewx
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# Required-Start: $local_fs $remote_fs $syslog $time
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# Required-Stop: $local_fs $remote_fs $syslog
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# Default-Start: 2 3 4 5
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# Default-Stop: 0 1 6
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# Short-Description: weewx weather system
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# Description: Manages the weewx weather system
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### END INIT INFO
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# Do NOT "set -e"
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# PATH should only include /usr/* if it runs after the mountnfs.sh script
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PATH=/sbin:/usr/sbin:/bin:/usr/bin
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WEEWX_BIN=/home/weewx/bin/weewxd
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WEEWX_CFG=/home/weewx/weewx.conf
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DESC="weewx weather system"
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NAME=weewx
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WEEWX_USER=root:root
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PIDFILE=/var/run/$NAME.pid
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DAEMON=$WEEWX_BIN
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DAEMON_ARGS="--daemon --pidfile=$PIDFILE $WEEWX_CFG"
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SCRIPTNAME=/etc/init.d/$NAME
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# Exit if the package is not installed
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[ -x "$WEEWX_BIN" ] || exit 0
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# Read configuration variable file if it is present
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[ -r /etc/default/$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 (>= 3.0-6) to ensure that this file is present.
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. /lib/lsb/init-functions
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# start the daemon/service
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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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# check using ps not the pid file. pid file could be leftover.
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do_start()
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{
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NPROC=`ps ax | grep $WEEWX_BIN | grep $NAME.pid | wc -l`
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if [ $NPROC != 0 ]; then
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return 1
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fi
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start-stop-daemon --start --chuid $WEEWX_USER --pidfile $PIDFILE --exec $DAEMON -- $DAEMON_ARGS || return 2
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return 0
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}
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# stop the daemon/service
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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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do_stop()
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{
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start-stop-daemon --stop --pidfile $PIDFILE
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RETVAL="$?"
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[ "$RETVAL" = 2 ] && return 2
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# delete the pid file just in case the daemon does not
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rm -f $PIDFILE
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return "$RETVAL"
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}
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# send a SIGHUP to the daemon/service
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do_reload() {
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start-stop-daemon --stop --signal 1 --quiet --pidfile $PIDFILE
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return 0
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}
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RETVAL=0
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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; RETVAL=0 ;;
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2) [ "$VERBOSE" != no ] && log_end_msg 1; RETVAL=1 ;;
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esac
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;;
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stop)
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[ "$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; RETVAL=0 ;;
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2) [ "$VERBOSE" != no ] && log_end_msg 1; RETVAL=1 ;;
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esac
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;;
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status)
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NPROC=`ps ax | grep $WEEWX_BIN | grep $NAME.pid | wc -l`
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if [ $NPROC -gt 1 ]; then
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MSG="running multiple times"
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elif [ $NPROC = 1 ]; then
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MSG="running"
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else
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MSG="not running"
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fi
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log_daemon_msg "Status of $DESC" "$MSG"
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log_end_msg 0
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RETVAL=0
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;;
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reload|force-reload)
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log_daemon_msg "Reloading $DESC" "$NAME"
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do_reload
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RETVAL=$?
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log_end_msg $RETVAL
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;;
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restart)
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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; RETVAL=0 ;;
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1) log_end_msg 1; RETVAL=1 ;; # Old process is still running
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*) log_end_msg 1; RETVAL=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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RETVAL=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|reload}"
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exit 3
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;;
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esac
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exit $RETVAL
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