dev-db/drizzle/files/drizzle.init.d.2

   1 #!/sbin/runscript
   2 # Copyright 1999-2012 Pavel Stratil, senbonzakura.eu
   3 # Some functions were taken from debian init script. Licensed under GPL-2
   4 # Distributed under the terms of the GNU General Public License v2
   5 # $Id$
   6
   7 #########################
   8 ### Construct vars ######
   9 #########################
  10
  11
  12 SUFFIX=".${SVCNAME#*.}"
  13 [ "${SUFFIX}" == ".drizzled" ] && SUFFIX=''
  14
  15 DIR_PID="/run/drizzle"
  16 DIR_LOG="/var/log/drizzle"
  17
  18 BASE_CNF="/etc/drizzle/drizzled"
  19 BASE_PID="${DIR_PID}/drizzled"
  20 BASE_LOG="${DIR_LOG}/drizzled"
  21 BASE_DIR="/var/lib/drizzle/drizzled"
  22
  23 CNFFILE="${BASE_CNF}${SUFFIX}.cnf"
  24 LOGFILE="${BASE_LOG}${SUFFIX}.log"
  25 DATADIR="${BASE_DIR}${SUFFIX}"
  26 DRIZZLE="/usr/bin/drizzle"
  27 DRIZZLE_USER="drizzle"
  28
  29 pidfile="${BASE_PID}${SUFFIX}.pid"
  30 command="/usr/sbin/drizzled"
  31 command_args="--daemon --datadir=${DATADIR} --pid-file=${pidfile} --user=${DRIZZLE_USER} --syslog.errmsg-enable ${DRIZZLE_EXTRA}"
  32
  33 start_stop_daemon_args="--user ${DRIZZLE_USER} --wait 5000"
  34
  35 #########################
  36 ### Helper functions ####
  37 #########################
  38
  39
  40 #
  41 # drizzle_status() checks if there is a server running and if it is accessible.
  42 # "check_alive" insists on a pingable server, "check_dead" also fails
  43 # if there is a lost drizzled in the process list
  44 # Usage: boolean drizzle_status [check_alive|check_dead] [warn|nowarn]
  45 #
  46 drizzle_status() {
  47         ping_output=`$DRIZZLE --ping 2>&1`; ping_alive=$(( ! $? ))
  48         ps_alive=0
  49         if [ -f "$pidfile" ] && ps `cat $pidfile` >/dev/null 2>&1; then ps_alive=1; fi
  50
  51         if [ "$1" = "check_alive"  -a  $ping_alive = 1 ] ||
  52            [ "$1" = "check_dead"   -a  $ping_alive = 0  -a  $ps_alive = 0 ]; then
  53            return 0 # EXIT_SUCCESS
  54         else
  55         if [ "$2" = "warn" ]; then
  56                 echo -e "$ps_alive processes alive and '$DRIZZLE --ping' resulted in\n$ping_output\n"
  57         fi
  58         return 1 # EXIT_FAILURE
  59         fi
  60 }
  61
  62 #########################
  63 ### Main ################
  64 #########################
  65
  66 checkconfig() {
  67         # TODO: --print-defaults no longer a valid option. Needs to be rewritten.
  68         #CNFDATADIR=`drizzle_get_param datadir`
  69                 #if [ -z "${CNFDATADIR}" ] ; then
  70         #   ewarn "Datadir not set in ${CNFFILE}."
  71         #   ewarn "Trying to use ${DATADIR}"
  72         #else
  73            DATADIR="${CNFDATADIR}"
  74         #fi
  75
  76         if [[ ! -d "${DATADIR}" ]] ; then
  77                 eerror "Drizzle datadir is empty or invalid."
  78                 eerror "Please check your configuration ${CNFFILE} and DRIZZLE_EXTRA"
  79                 return 1
  80         fi
  81
  82         if [ ! -f "${CNFFILE}" ]; then
  83                 eerror "The configuration file $CNFFILE was not found!"
  84         fi
  85 }
  86
  87 depend() {
  88         use localmount
  89         use logger
  90         use gearmand
  91         use memcached
  92
  93         # TODO use drizzle_get_param() to decide if gearmand and memcached
  94         #      are needed. Then the useflag based sed-ing of this script
  95         #      can be removed from the ebuild.
  96 }
  97
  98 start_pre() {
  99     checkpath -d -o ${DRIZZLE_USER}:nogroup ${DIR_PID} ${DIR_LOG}
 100     checkpath -f -o ${DRIZZLE_USER}:nogroup ${LOGFILE}
 101 }
 102
 103 start_post() {
 104     for i in 1 2 3 4 5 6 7 8 9 10 11 12 13 14; do
 105         sleep 1
 106         if drizzle_status check_alive nowarn ; then break ; fi
 107     done
 108     if drizzle_status check_alive warn ; then
 109         einfo "${SVCNAME} is alive!"
 110     else
 111         eerror "${SVCNAME} died!"
 112     fi
 113 }
 114
 115 stop_post() {
 116         drizzle_status check_dead warn
 117 }
 118
 119 status() {
 120     if drizzle_status check_alive nowarn; then
 121         mark_service_started drizzled
 122         einfo "status: started"
 123     else
 124         mark_service_stopped drizzled
 125         einfo "status: stopped"
 126     fi
 127 }