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First pass at making the init file more system independent (still LSB).

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1 parent bbaf4c8 commit 589cb88d57a727f6a7fa2f30328862b4e51f7966 @sbisbee sbisbee committed with sbisbee Sep 1, 2010
Showing with 80 additions and 110 deletions.
  1. +80 −110 src/main/tools/etc/init.d/couchdb-lucene
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190 src/main/tools/etc/init.d/couchdb-lucene
@@ -9,152 +9,122 @@
# Description: Initscript for CouchDB-Lucene
### END INIT INFO
-# Author: Sebastian Cohnen <sebastian.cohnen@gmail.com>
-#
-
# Do NOT "set -e"
+SCRIPT_OK=0
+SCRIPT_ERROR=1
+
PATH=/sbin:/usr/sbin:/bin:/usr/bin
-DESC="Description of the service"
+DESC="CouchDB Lucene index"
NAME="couchdb-lucene"
DAEMON=/usr/local/couchdb-lucene-0.5.5/bin/run
-PIDFILE=/var/run/$NAME.pid
+PIDFILE=/var/run/$NAME/$NAME.pid
DAEMON_ARGS="$PIDFILE"
-SCRIPTNAME=/etc/init.d/$NAME
+SCRIPTNAME=`basename $0`
+LSB_LIBRARY=/lib/lsb/init-functions
# Exit if the package is not installed
-[ -x "$DAEMON" ] || exit 0
+[ -x "$DAEMON" ] || exit $SCRIPT_ERROR
# Read configuration variable file if it is present
[ -r /etc/default/$NAME ] && . /etc/default/$NAME
# Load the VERBOSE setting and other rcS variables
. /lib/init/vars.sh
-# Define LSB log_* functions.
-# Depend on lsb-base (>= 3.0-6) to ensure that this file is present.
-. /lib/lsb/init-functions
+# We use LSB, so require that we can find the lib.
+[ ! -r $LSB_LIBRARY ] && echo "$NAME cannot find the LSB functions! Did you set LSB_LIBRARY?" && exit $SCRIPT_ERROR
+
+. $LSB_LIBRARY
#
# Function that starts the daemon/service
#
do_start()
{
- # Return
- # 0 if daemon has been started
- # 1 if daemon was already running
- # 2 if daemon could not be started
- PIDFILE=$PIDFILE start-stop-daemon --start --pidfile $PIDFILE --exec $DAEMON --test > /dev/null \
- || return 1
- PIDFILE=$PIDFILE start-stop-daemon --start --pidfile $PIDFILE --exec $DAEMON -- \
- $DAEMON_ARGS \
- || return 2
- # Add code here, if necessary, that waits for the process to be ready
- # to handle requests from services started subsequently which depend
- # on this one. As a last resort, sleep for some time.
+ # Return
+ # 0 if daemon has been started
+ # 1 if daemon was already running
+ # 2 if daemon could not be started
+ PIDFILE=$PIDFILE start-stop-daemon --start --pidfile $PIDFILE --exec $DAEMON --test > /dev/null \
+ || return 1
+ PIDFILE=$PIDFILE start-stop-daemon --start --pidfile $PIDFILE --exec $DAEMON -- \
+ $DAEMON_ARGS \
+ || return 2
}
#
# Function that stops the daemon/service
#
do_stop()
{
- # Return
- # 0 if daemon has been stopped
- # 1 if daemon was already stopped
- # 2 if daemon could not be stopped
- # other if a failure occurred
- start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 --pidfile $PIDFILE
- RETVAL="$?"
- [ "$RETVAL" = 2 ] && return 2
- # Wait for children to finish too if this is a daemon that forks
- # and if the daemon is only ever run from this initscript.
- # If the above conditions are not satisfied then add some other code
- # that waits for the process to drop all resources that could be
- # needed by services started subsequently. A last resort is to
- # sleep for some time.
- start-stop-daemon --stop --quiet --oknodo --retry=0/30/KILL/5 --exec $DAEMON
- [ "$?" = 2 ] && return 2
- # Many daemons don't delete their pidfiles when they exit.
- rm -f $PIDFILE
- return "$RETVAL"
-}
-
-#
-# Function that sends a SIGHUP to the daemon/service
-#
-do_reload() {
- #
- # If the daemon can reload its configuration without
- # restarting (for example, when it is sent a SIGHUP),
- # then implement that here.
- #
- start-stop-daemon --stop --signal 1 --quiet --pidfile $PIDFILE --name $NAME
- return 0
+ # Return
+ # 0 if daemon has been stopped
+ # 1 if daemon was already stopped
+ # 2 if daemon could not be stopped
+ # other if a failure occurred
+ start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 --pidfile $PIDFILE
+ RETVAL="$?"
+ [ "$RETVAL" = 2 ] && return 2
+ # Wait for children to finish too if this is a daemon that forks
+ # and if the daemon is only ever run from this initscript.
+ # If the above conditions are not satisfied then add some other code
+ # that waits for the process to drop all resources that could be
+ # needed by services started subsequently. A last resort is to
+ # sleep for some time.
+ start-stop-daemon --stop --quiet --oknodo --retry=0/30/KILL/5 --exec $DAEMON
+ [ "$?" = 2 ] && return 2
+ # Many daemons don't delete their pidfiles when they exit.
+ rm -f $PIDFILE
+ return "$RETVAL"
}
case "$1" in
start)
- [ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$NAME"
- do_start
- case "$?" in
- 0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
- 2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
- esac
- ;;
+ [ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$NAME"
+ do_start
+ case "$?" in
+ 0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
+ 2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
+ esac
+ ;;
+
stop)
- [ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME"
- do_stop
- case "$?" in
- 0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
- 2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
- esac
- ;;
+ [ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME"
+ do_stop
+ case "$?" in
+ 0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
+ 2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
+ esac
+ ;;
+
status)
- #status_of_proc "$DAEMON" "$NAME" && exit 0 || exit $?
- if [ ! -f $PIDFILE -o ! -d /proc/`cat $PIDFILE` ]
- then
- log_failure_msg "$NAME is not running"
- else
- log_success_msg "$NAME is running"
- fi
- ;;
- #reload|force-reload)
- #
- # If do_reload() is not implemented then leave this commented out
- # and leave 'force-reload' as an alias for 'restart'.
- #
- #log_daemon_msg "Reloading $DESC" "$NAME"
- #do_reload
- #log_end_msg $?
- #;;
+ status_of_proc "$DAEMON" "$NAME" && exit $SCRIPT_OK || exit $?
+ ;;
+
restart|force-reload)
- #
- # If the "reload" option is implemented then remove the
- # 'force-reload' alias
- #
- log_daemon_msg "Restarting $DESC" "$NAME"
- do_stop
- case "$?" in
- 0|1)
- do_start
- case "$?" in
- 0) log_end_msg 0 ;;
- 1) log_end_msg 1 ;; # Old process is still running
- *) log_end_msg 1 ;; # Failed to start
- esac
- ;;
- *)
- # Failed to stop
- log_end_msg 1
- ;;
- esac
- ;;
+ log_daemon_msg "Restarting $DESC" "$NAME"
+ do_stop
+ case "$?" in
+ 0|1)
+ do_start
+ case "$?" in
+ 0) log_end_msg $SCRIPT_OK ;;
+ 1) log_end_msg $SCRIPT_ERROR ;; # Old process is still running
+ *) log_end_msg $SCRIPT_ERROR ;; # Failed to start
+ esac
+ ;;
+ *)
+ # Failed to stop
+ log_end_msg $SCRIPT_ERROR
+ ;;
+ esac
+ ;;
+
*)
- #echo "Usage: $SCRIPTNAME {start|stop|restart|reload|force-reload}" >&2
- echo "Usage: $SCRIPTNAME {start|stop|status|restart|force-reload}" >&2
- exit 3
- ;;
+ echo "Usage: $SCRIPTNAME {start|stop|status|restart|force-reload}" >&2
+ exit 3
+ ;;
esac
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