databases/mariadb104-server: Fix breakage

* Unbreak clean installs (USERS/GROUPS)
 * INSTALL_UNIX_ADDRDIR is a FILE, add the socket filename
 * Built-in socket path now confirmed to be consistent between client, lib and daemon

PR:		247747
Submitted by:	VVD <vvd unislabs com>
Reported by:	dinoex
MFH:		2020Q3

databases/mariadb104-server/Makefile

@@ -3,7 +3,7 @@
 
 PORTNAME?=	mariadb
 PORTVERSION=	10.4.13
-PORTREVISION?=	3
+PORTREVISION?=	4
 CATEGORIES=	databases
 MASTER_SITES=	http://mirrors.supportex.net/${SITESDIR}/ \
 		http://mirror2.hs-esslingen.de/pub/Mirrors/${SITESDIR}/ \
@@ -42,6 +42,7 @@ MARIADB_USER?=	mysql
 MARIADB_GROUP?=	mysql
 
 MARIADB_RUNDIR?=	/var/run/mysql
+MARIADB_SOCK?=		mysql.sock		
 MARIADB_LOGDIR?=	/var/log/mysql
 
 OPTIONS_SINGLE=		GSSAPI
@@ -93,7 +94,7 @@ CMAKE_ARGS+=	-DINSTALL_DOCDIR="share/doc/mysql" \
 		-DINSTALL_SUPPORTFILESDIR="share/mysql" \
 		-DDEFAULT_SYSCONFDIR="${PREFIX}/etc" \
 		-DDEFAULT_SYSCONF2DIR="${ETCDIR}/conf.d" \
-		-DINSTALL_UNIX_ADDRDIR="${MARIADB_RUNDIR}" \
+		-DINSTALL_UNIX_ADDRDIR="${MARIADB_RUNDIR}/${MARIADB_SOCK}" \
 		-DWITH_SSL="${OPENSSLBASE}" \
 		-DCURSES_CURSES_LIBRARY="/usr/lib/libcurses.so" \
 		-DCURSES_FORM_LIBRARY="/usr/lib/libform.so" \
@@ -122,7 +123,8 @@ GSSAPI_MIT_USES=	gssapi:mit
 GSSAPI_NONE_CMAKE_ON=	-DPLUGIN_AUTH_GSSAPI_CLIENT=OFF
 OPTIONS_SUB=		yes
 SUB_LIST+=		MARIADB_USER="${MARIADB_USER}" \
-			MARIADB_RUNDIR="${MARIADB_RUNDIR}"
+			MARIADB_RUNDIR="${MARIADB_RUNDIR}" \
+			MARIADB_SOCK="${MARIADB_SOCK}"
 PLIST_SUB+=		MARIADB_USER="${MARIADB_USER}" \
 			MARIADB_GROUP="${MARIADB_GROUP}"
 
@@ -139,6 +141,8 @@ PLIST_SUB+=	MARIADB_RUNDIR="${MARIADB_RUNDIR}"
 USES+=		mysql:104m
 USE_LDCONFIG+=	${PREFIX}/lib/mysql/plugin
 USE_RC_SUBR=	mysql-server
+USERS=		${MARIADB_USER}
+GROUPS=		${MARIADB_GROUP}
 CMAKE_ON+=	CMAKE_SKIP_BUILD_RPATH WITH_EMBEDDED_SERVER
 CMAKE_OFF+=	WITH_CLIENT
 SUB_FILES+=	server.cnf.sample

databases/mariadb104-server/files/my.cnf.sample.in

@@ -5,7 +5,7 @@
 #
 [client-server]
 port	= 3306
-socket	= %%MARIADB_RUNDIR%%/mysql.sock
+socket	= %%MARIADB_RUNDIR%%/%%MARIADB_SOCK%%
 
 #
 # include *.cnf from the config directory

databases/mariadb104-server/files/mysql-server.in

@@ -12,14 +12,17 @@
 %%LEGACY_LIMITS%%# mysql_(instance_)?limits (bool):	Set to "NO" by default.
 %%LEGACY_LIMITS%%#			Set it to yes to run `limits -e -U mysql`
 %%LEGACY_LIMITS%%#			just before mysql starts.
-# mysql_(instance_)?dbdir (str):	Default to "/var/db/mysql"
-#			Base database directory.
+# mysql_(instance_)?dbdir (str):	Base database directory.
+#			Default to "/var/db/mysql"
 # mysql_(instance_)?args (str):	Custom additional arguments to be passed
 #			to mysqld_safe (default empty).
 # mysql_(instance_)?pidfile (str): Custum PID file path and name.
 #			Default to "${mysql_dbdir}/${hostname}.pid".
-# mysql_(instance_)?user (str): User to run mysqld as
-#			Default to "mysql" created by the port
+# mysql_(instance_)?user (str): User to run mysqld as.
+#			Default to "%%MARIADB_USER%%" created by the port
+# mysql_(instance_)?socket (str): Name of the socket file.
+#			Default to "" and used from %%ETCDIR%%/my.cnf,
+#			where default is "%%MARIADB_RUNDIR%%/%%MARIADB_SOCK%%".
 # mysql_(instance_)?optfile (str): Server-specific option file.
 #			Default to "${mysql_dbdir}/my.cnf".
 # mysql_instances (str): Set to "" by default. 
@@ -34,7 +37,7 @@ load_rc_config $name
 
 : ${mysql_enable="NO"}
 %%LEGACY_LIMITS%%: ${mysql_limits="NO"}
-: ${mysql_user="mysql"}
+: ${mysql_user="%%MARIADB_USER%%"}
 %%LEGACY_LIMITS%%mysql_limits_args="-e -U ${mysql_user}"
 : ${mysql_dbdir="/var/db/mysql"}
 : ${mysql_optfile="${mysql_dbdir}/my.cnf"}
@@ -54,6 +57,7 @@ if [ -n "$2" ]; then
 		%%LEGACY_LIMITS%%eval mysql_limits="\${mysql_${instance}_limits:-\"${mysql_limits}\"}"
 		eval mysql_user="\${mysql_${instance}_user:-\"${mysql_user}\"}"
 		%%LEGACY_LIMITS%%eval mysql_limits_args="\${mysql_${instance}_limits_args:-\"-e -U $mysql_user\"}"
+		eval mysql_socket="\${mysql_${instance}_socket:-\"${mysql_socket}\"}"
 		eval mysql_optfile="\${mysql_${instance}_optfile:-\"${mysql_dbdir}/my.cnf\"}"
 		eval mysql_pidfile="\${mysql_${instance}_pidfile:-\"${mysql_dbdir}/`/bin/hostname`.pid\"}"
 	;;
@@ -99,7 +103,7 @@ fi
 pidfile=$mysql_pidfile
 mysql_install_db="%%PREFIX%%/bin/mysql_install_db"
 mysql_install_db_args="--basedir=%%PREFIX%% --datadir=${mysql_dbdir} --force"
-command_args="-c -f %%PREFIX%%/bin/mysqld_safe --defaults-extra-file=${mysql_optfile} --user=${mysql_user} --datadir=${mysql_dbdir} --pid-file=${pidfile} ${mysql_args}"
+command_args="-c -f %%PREFIX%%/bin/mysqld_safe --defaults-extra-file=${mysql_optfile} --user=${mysql_user} --datadir=${mysql_dbdir} --pid-file=${pidfile} ${mysql_socket:+--socket=${mysql_socket}} ${mysql_args}"
 
 mysql_create_auth_tables()
 {
@@ -119,6 +123,11 @@ mysql_prestart()
 	if [ ! -d "${mysql_dbdir}/mysql/." ]; then
 		mysql_create_auth_tables || return 1
 	fi
+	[ "${mysql_socket}" = "" ] && mysql_rundir="%%MARIADB_RUNDIR%%" || mysql_rundir="`/usr/bin/dirname ${mysql_socket}`"
+	if [ ! -d "${mysql_rundir}" ]; then
+		install -d -o ${mysql_user} -g %%MARIADB_GROUP%% "${mysql_rundir}"
+
+	fi
 %%LEGACY_LIMITS%%	if checkyesno mysql_limits; then
 %%LEGACY_LIMITS%%		eval `/usr/bin/limits ${mysql_limits_args}` 2>/dev/null
 %%LEGACY_LIMITS%%	else

databases/mariadb104-server/files/server.cnf.sample.in

@@ -14,12 +14,12 @@
 [mysqld]
 user				= %%MARIADB_USER%%
 # port				= 3306 # inherited from %%ETCDIR%%/my.cnf
-# socket			= %%MARIADB_RUNDIR%%/mysql.sock # inherited from %%ETCDIR%%/my.cnf
+# socket			= %%MARIADB_RUNDIR%%/%%MARIADB_SOCK%% # inherited from %%ETCDIR%%/my.cnf
 bind-address			= 127.0.0.1
 basedir				= %%PREFIX%%
 datadir				= /var/db/mysql
 net_retry_count			= 16384
-log_error			= %%MARIADB_LOGDIR%%/${hostname}.err
+log_error			= %%MARIADB_LOGDIR%%/mysqld.err
 # [mysqld] configuration for ZFS
 # From https://www.percona.com/resources/technical-presentations/zfs-mysql-percona-technical-webinar
 # Create separate datasets for data and logs, eg