textproc/elasticsearch5: Use native facilites for manging the process

start/stop/status will behave correctly with procname set.

This now prevents Elastic from starting when a process is already
running, stops cleanly, and also handles multiple profiles correctly:
if only some of the profile processes are running, a "service
elasticsearch start" will only start the profiles that are not detected
as running already.

All of this comes with the caveat that Elastic is slow to start up and write
its pidfile, so if you are too quick it will allow duplicate processes
to start. Here be JVM dragons.

Approved by:	portmgr (with hat)
MFH:		2018Q1

textproc/elasticsearch5/Makefile

@@ -3,7 +3,7 @@
 
 PORTNAME=	elasticsearch
 PORTVERSION=	5.3.0
-PORTREVISION=	2
+PORTREVISION=	3
 CATEGORIES=	textproc java devel
 MASTER_SITES=	https://artifacts.elastic.co/downloads/${PORTNAME}/ \
 		http://mirrors.rit.edu/zi/
@@ -51,7 +51,8 @@ ELASTIC_LOGDIR=	/var/log/elasticsearch
 
 SUB_LIST=	SEARCHUSER=${SEARCHUSER} \
 		SEARCHGROUP=${SEARCHGROUP} \
-		PORTVERSION=${PORTVERSION}
+		PORTVERSION=${PORTVERSION} \
+		JAVA=${JAVA}
 SUB_FILES=	pkg-message
 PLIST_SUB+=	SEARCHUSER=${SEARCHUSER} \
 		SEARCHGROUP=${SEARCHGROUP} \

textproc/elasticsearch5/files/elasticsearch.in

@@ -36,12 +36,11 @@ load_rc_config ${name}
 required_files="${elasticsearch_config}/elasticsearch.yml"
 _pidprefix=/var/run/elasticsearch
 pidfile=${_pidprefix}.pid
+procname=%%JAVA%%
 
 extra_commands="console status"
 console_cmd=elasticsearch_console
 start_precmd=elasticsearch_precmd
-status_cmd=elasticsearch_status
-stop_cmd=elasticsearch_stop
 command=%%PREFIX%%/lib/elasticsearch/bin/elasticsearch
 command_args="-d --pidfile=${pidfile} -Epath.conf=${elasticsearch_config}"
 
@@ -59,52 +58,6 @@ elasticsearch_console()
     run_rc_command "start"
 }
 
-elasticsearch_stop()
-{
-    rc_pid=$(elasticsearch_check_pidfile $pidfile)
-
-    if [ -z "$rc_pid" ]; then
-        [ -n "$rc_fast" ] && return 0
-        echo "${name} not running? (check $pidfile)."
-        return 1
-    fi
-
-    echo "Stopping ${name}."
-    kill $sig_stop ${rc_pid}
-    wait_for_pids ${rc_pid}
-}
-
-elasticsearch_status()
-{
-    rc_pid=$(elasticsearch_check_pidfile $pidfile)
-
-    if [ -z "$rc_pid" ]; then
-        [ -n "$rc_fast" ] && return 0
-        echo "${name} not running? (check $pidfile)."
-        return 1
-    fi
-    echo "${name} is running as pid ${rc_pid}."
-}
-
-elasticsearch_check_pidfile()
-{
-    _pidfile=$1
-    if [ -z "$_pidfile" ]; then
-        err 3 'USAGE: elasticsearch_check_pidfile pidfile'
-    fi
-    if [ ! -f $_pidfile ]; then
-        debug "pid file ($_pidfile): not readable."
-        return
-    fi
-    read _pid _junk < $_pidfile
-    if [ -z "$_pid" ]; then
-        debug "pid file ($_pidfile): no pid in file."
-        return
-    fi
-    if [ -n "`%%PREFIX%%/bin/jps -l | grep -e "^$_pid"`" ]; then
-        echo -n $_pid
-    fi
-}
 if [ -n "$2" ]; then
     profile="$2"
     if [ "x${elasticsearch_profiles}" != "x" ]; then