From 03980607942daf16eb53249ce8a9fff9c69c551b Mon Sep 17 00:00:00 2001
From: Willy Sudiarto Raharjo <willysr@slackbuilds.org>
Date: Sun, 8 Dec 2024 22:11:13 +0700
Subject: [PATCH] system/postgresql15: Added (Object-relational DBMS).

Signed-off-by: Andrew Clemons <andrew.clemons@gmail.com>
---
 system/postgresql15/README                  |  14 ++
 system/postgresql15/README.SBo              |  60 ++++++
 system/postgresql15/doinst.sh               |  40 ++++
 system/postgresql15/postgresql15.SlackBuild | 216 ++++++++++++++++++++
 system/postgresql15/postgresql15.info       |  10 +
 system/postgresql15/postgresql15.logrotate  |   9 +
 system/postgresql15/rc.postgresql15.new     | 171 ++++++++++++++++
 system/postgresql15/setup.postgresql15      |  35 ++++
 system/postgresql15/slack-desc              |  19 ++
 9 files changed, 574 insertions(+)
 create mode 100644 system/postgresql15/README
 create mode 100644 system/postgresql15/README.SBo
 create mode 100644 system/postgresql15/doinst.sh
 create mode 100644 system/postgresql15/postgresql15.SlackBuild
 create mode 100644 system/postgresql15/postgresql15.info
 create mode 100644 system/postgresql15/postgresql15.logrotate
 create mode 100644 system/postgresql15/rc.postgresql15.new
 create mode 100644 system/postgresql15/setup.postgresql15
 create mode 100644 system/postgresql15/slack-desc

diff --git a/system/postgresql15/README b/system/postgresql15/README
new file mode 100644
index 00000000000..5e488da2242
--- /dev/null
+++ b/system/postgresql15/README
@@ -0,0 +1,14 @@
+PostgreSQL is an advanced object-relational database management
+system (ORDBMS) based on POSTGRES. With more than 15 years of
+development history, it is quickly becoming the de facto
+database for enterprise level open source solutions.
+
+Before you can run postgresql you'll need to create the database;
+please see README.SBo.
+
+You need a "postgres" user and group prior to building postgresql.
+Something like this will suffice for most systems:
+  groupadd -g 209 postgres
+  useradd -u 209 -g 209 -d /var/lib/pgsql postgres
+Feel free to use a different uid and gid if desired, but 209 is
+recommended to avoid conflicts with other stuff from SlackBuilds.org.
diff --git a/system/postgresql15/README.SBo b/system/postgresql15/README.SBo
new file mode 100644
index 00000000000..3fe4ac4d400
--- /dev/null
+++ b/system/postgresql15/README.SBo
@@ -0,0 +1,60 @@
+Before you can run postgresql you'll need to create the
+database files in /var/lib/pgsql. The following should do
+the trick.
+	# su postgres -c "initdb -D /var/lib/pgsql/15/data --locale=en_US.UTF-8 -A md5 -W"
+
+Additionally, a logrotation script and init script are included.
+For production level log file handling please read
+https://www.postgresql.org/docs/15/logfile-maintenance.html
+
+In order to start postgresql at boot and stop it properly at shutdown,
+make sure rc.postgresql is executable and add the following lines to
+the following files:
+
+	/etc/rc.d/rc.local
+	==================
+	# Startup postgresql
+	if [ -x /etc/rc.d/rc.postgresql ]; then
+		/etc/rc.d/rc.postgresql start
+	fi
+
+	/etc/rc.d/rc.local_shutdown
+	===========================
+	# Stop postgres
+	if [ -x /etc/rc.d/rc.postgresql ]; then
+		/etc/rc.d/rc.postgresql stop
+	fi
+
+Additionally, rc.postgresql script has additional modes for stop/restart:
+  force-stop|force-restart (i.e. pg_ctl 'fast' mode)
+  unclean-stop|unclean-restart (i.e. pg_ctl 'immediate' mode)
+See https://www.postgresql.org/docs/15/app-pg-ctl.html
+
+From PostgreSQL 9.3 we support in place database upgrades using pg_upgrade:
+  https://www.postgresql.org/docs/15/pgupgrade.html
+
+A few hints for PostgreSQL 14.x -> 15.x upgrade:
+  - Don't remove old PostgreSQL 14.x package (yet)
+  - Install PostgreSQL 15.x, note that binaries are in
+    '/usr/lib64/postgresql15/15/bin'
+  - Create database file for postgresql 15
+    # su postgres -c "initdb -D /var/lib/pgsql/15/data --locale=en_US.UTF-8 -A md5 -W"
+  - Adjust the pg_hba.conf in postgresql 15 to allow postgres user to connect
+  - Run pg_upgrade (as postgres user)
+	$ pg_upgrade --old-datadir /var/lib/pgsql/14/data/ --new-datadir /var/lib/pgsql/15/data/ --old-bindir /usr/lib64/postgresql/14/bin/ --new-bindir /usr/lib64/postgresql15/15/bin/ -U postgres
+  - Start postgresql 15 service
+  - Optionally, vacuum all database
+	/usr/lib{64}/postgresql15/15/bin/vacuumdb -U postgres --all --analyze-in-stages
+	To remove old's cluster data files, run:
+	./delete_old_cluster.sh
+  - Remove old package when transition is over, or read comments in
+    rc.postgresql  if you want to run multiple PostgreSQL versions in parallel
+
+This script builds postgresql with some useful extension modules from
+the contrib directory, see PG_EXTENSIONS in SlackBuild file.
+To build PostgreSQL with all extensions, use the following command:
+
+	# PG_EXTENSIONS=ALL ./postgresql.SlackBuild
+
+Please note that in order to actually use extension, you must execute
+'CREATE EXTENSION [ IF NOT EXISTS ] extension_name' for each extension.
diff --git a/system/postgresql15/doinst.sh b/system/postgresql15/doinst.sh
new file mode 100644
index 00000000000..d43b4d21f80
--- /dev/null
+++ b/system/postgresql15/doinst.sh
@@ -0,0 +1,40 @@
+config() {
+  NEW="$1"
+  OLD="$(dirname $NEW)/$(basename $NEW .new)"
+  # If there's no config file by that name, mv it over:
+  if [ ! -r $OLD ]; then
+    mv $NEW $OLD
+  elif [ "$(cat $OLD | md5sum)" = "$(cat $NEW | md5sum)" ]; then # toss the redundant copy
+    rm $NEW
+  fi
+  # Otherwise, we leave the .new copy for the admin to consider...
+}
+
+preserve_perms() {
+  NEW="$1"
+  OLD="$(dirname $NEW)/$(basename $NEW .new)"
+  if [ -e $OLD ]; then
+    cp -a $OLD ${NEW}.incoming
+    cat $NEW > ${NEW}.incoming
+    mv ${NEW}.incoming $NEW
+  fi
+  config $NEW
+}
+
+preserve_perms etc/rc.d/rc.postgresql15.new
+config etc/logrotate.d/postgresql15.new
+
+# Create default program symlinks in /usr/bin
+(
+  cd usr/bin
+  for pg_binary in ../lib@LIBDIRSUFFIX@/@PRGNAM@/@PG_VERSION@/bin/*; do
+    pg_prog=$(basename $pg_binary)
+    if [ -L $pg_prog ]; then
+      ln -sf $pg_binary
+    elif [ ! -e $pg_prog ]; then
+      # make sure we don't overwrite actual binaries
+      ln -s $pg_binary
+    fi
+  done
+)
+
diff --git a/system/postgresql15/postgresql15.SlackBuild b/system/postgresql15/postgresql15.SlackBuild
new file mode 100644
index 00000000000..227a2f7ca6a
--- /dev/null
+++ b/system/postgresql15/postgresql15.SlackBuild
@@ -0,0 +1,216 @@
+#!/bin/bash
+
+# Slackware build script for PostgreSQL
+#
+# Copyright 2007-2018 Adis Nezirovic <adis_at_linux.org.ba>
+# Copyright 2024 Willy Sudiarto Raharjo <willysr@slackbuilds.org>
+# All rights reserved.
+#
+# Redistribution and use of this script, with or without modification, is
+# permitted provided that the following conditions are met:
+#
+# 1. Redistributions of this script must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+#
+#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
+#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
+#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+cd $(dirname $0) ; CWD=$(pwd)
+
+PRGNAM=postgresql15
+SRCNAM=postgresql
+VERSION=${VERSION:-15.10}
+BUILD=${BUILD:-1}
+TAG=${TAG:-_SBo}
+PKGTYPE=${PKGTYPE:-tgz}
+
+PG_VERSION=${PG_VERSION:-15}
+PG_PORT=${PG_PORT:-5432}
+PG_UID=${PG_UID:-209}
+PG_GID=${PG_GID:-209}
+
+if [ -z "$ARCH" ]; then
+  case "$( uname -m )" in
+    i?86) ARCH=i586 ;;
+    arm*) ARCH=arm ;;
+       *) ARCH=$( uname -m ) ;;
+  esac
+fi
+
+if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
+  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
+  exit 0
+fi
+
+TMP=${TMP:-/tmp/SBo}
+PKG=$TMP/package-$PRGNAM
+OUTPUT=${OUTPUT:-/tmp}
+
+# Bail out if user or group isn't valid on your system
+# For slackbuilds.org, assigned postgres uid/gid are 209/209
+# See http://slackbuilds.org/uid_gid.txt
+# Other popular choice is 26/26
+if ! grep ^postgres: /etc/group > /dev/null 2>&1 ; then
+  echo "  You must have a postgres group to run this script."
+  echo "    # groupadd -g $PG_GID postgres"
+  exit 1
+elif ! grep ^postgres: /etc/passwd > /dev/null 2>&1 ; then
+  echo "  You must have a postgres user to run this script."
+  echo "    # useradd -u $PG_UID -g $PG_GID -d /var/lib/pgsql postgres"
+  exit 1
+fi
+
+# Enable NLS builds using 'ENABLE_NLS=1 ./postgresql.SlackBuild'
+if [ ! -z $ENABLE_NLS  ];then
+  NLS=enable
+else
+  NLS=disable
+fi
+
+if [ "$ARCH" = "i586" ]; then
+  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
+  LIBDIRSUFFIX=""
+elif [ "$ARCH" = "i686" ]; then
+  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
+  LIBDIRSUFFIX=""
+elif [ "$ARCH" = "x86_64" ]; then
+  SLKCFLAGS="-O2 -fPIC"
+  LIBDIRSUFFIX="64"
+else
+  SLKCFLAGS="-O2"
+  LIBDIRSUFFIX=""
+fi
+
+set -e
+
+rm -rf $TMP/$SRCNAM-$VERSION $PKG
+mkdir -p $TMP $PKG $OUTPUT
+cd $TMP
+tar xvf $CWD/$SRCNAM-$VERSION.tar.gz
+cd $SRCNAM-$VERSION
+chown -R root:root .
+find -L . \
+ \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
+  -o -perm 511 \) -exec chmod 755 {} \; -o \
+ \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
+ -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
+
+CFLAGS="$SLKCFLAGS" \
+PYTHON="/usr/bin/python3" \
+./configure \
+  --prefix=/usr/lib${LIBDIRSUFFIX}/$PRGNAM/$PG_VERSION \
+  --sysconfdir=/etc/$PRGNAM/$PG_VERSION \
+  --includedir=/usr/include \
+  --datarootdir=/usr/share \
+  --mandir=/usr/man \
+  --docdir=/usr/doc/$PRGNAM-$VERSION \
+  --datadir=/usr/share/$PRGNAM-$PG_VERSION \
+  --with-openssl \
+  --with-tcl \
+  --with-perl \
+  --with-python \
+  --with-libxml \
+  --with-libxslt \
+  --enable-thread-safety \
+  --with-system-tzdata=/usr/share/zoneinfo \
+  --$NLS-nls \
+  --build=$ARCH-slackware-linux
+
+make
+make install-strip DESTDIR=$PKG
+make install-docs DESTDIR=$PKG
+
+# 20220414 bkw: this one binary wasn't getting stripped...
+strip $PKG/usr/lib${LIBDIRSUFFIX}/$PRGNAM/$PG_VERSION/bin/pg_config
+
+# create symlinks to shared library for other programs to link against
+( cd $PKG/usr/lib${LIBDIRSUFFIX}
+  for i in $(ls $PRGNAM/$PG_VERSION/lib/lib*.so*) ; do ln -sf $i ; done
+)
+
+# create symlinks to pkg-config scripts
+( mkdir -p $PKG/usr/lib${LIBDIRSUFFIX}/pkgconfig
+  cd $PKG/usr/lib${LIBDIRSUFFIX}/pkgconfig
+  for i in $(ls ../$PRGNAM/$PG_VERSION/lib/pkgconfig/*) ; do ln -sf $i ; done
+)
+
+# Some interesting additional modules:
+#   https://www.postgresql.org/docs/15/contrib.html
+#
+# adminpack - helper extension for pgAdmin
+# pgcrypto - extension for some business applications
+# ltree, xml2 - useful extensions for developers
+# postgres_fdw - foreign-data wrapper for access to external PostgreSQL servers
+# file_fdw - foreign-data wrapper for access to data files on filesystem
+
+PG_EXTENSIONS=${PG_EXTENSIONS:-"adminpack pgcrypto ltree xml2 postgres_fdw file_fdw hstore citext"}
+
+if [ "$PG_EXTENSIONS" = "ALL" ];then
+  cd $TMP/$SRCNAM-$VERSION/contrib
+  make all
+  make install-strip DESTDIR=$PKG
+else
+  for ext in $PG_EXTENSIONS; do
+    cd $TMP/$SRCNAM-$VERSION/contrib/$ext
+    make
+    make install-strip DESTDIR=$PKG
+  done
+fi
+
+cd $TMP/$SRCNAM-$VERSION
+
+find $PKG/usr/man -type f -exec gzip -9 {} \;
+for i in $( find $PKG/usr/man -type l ) ; do ln -s $( readlink $i ).gz $i.gz ; rm $i ; done
+
+cp -a COPYRIGHT HISTORY README doc/KNOWN_BUGS doc/MISSING_FEATURES doc/TODO $PKG/usr/doc/$PRGNAM-$VERSION/
+rm -rf $PKG/usr/doc/$PRGNAM-$VERSION/{man.tar.gz,man1,manl,man7,postgres.tar.gz}
+cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
+cat $CWD/README.SBo > $PKG/usr/doc/$PRGNAM-$VERSION/README.SBo
+
+# base database directory
+# assumes you are using /var/lib/pgsql as a homedir for postgres user
+mkdir -p $PKG/var/lib/pgsql/$PG_VERSION/data
+chown -R postgres:postgres $PKG/var/lib/pgsql
+chmod 700 $PKG/var/lib/pgsql
+# permissions for DATADIR should be u=rwx (0700)
+chmod 700 $PKG/var/lib/pgsql/$PG_VERSION/data
+
+# Install init script
+mkdir -p $PKG/etc/rc.d
+sed -e "s%@PG_VERSION@%$PG_VERSION%" \
+  -e "s%@PRGNAM@%$PRGNAM%" \
+  -e "s%@PG_PORT@%$PG_PORT%" \
+  -e "s%@LIBDIRSUFFIX@%$LIBDIRSUFFIX%" \
+  $CWD/rc.$PRGNAM.new > $PKG/etc/rc.d/rc.$PRGNAM.new
+chmod 0755 $PKG/etc/rc.d/rc.$PRGNAM.new
+
+# Install logrotate script
+mkdir -p $PKG/etc/logrotate.d
+sed -e "s%@PG_VERSION@%$PG_VERSION%" \
+  -e "s%@PRGNAM@%$PRGNAM%" \
+  $CWD/$PRGNAM.logrotate > $PKG/etc/logrotate.d/$PRGNAM.new
+
+mkdir -p $PKG/var/log/setup
+sed -e "s%@UID@%$PG_UID%" \
+  -e "s%@GID@%$PG_GID%" \
+  -e "s%@PG_VERSION@%$PG_VERSION%" \
+  $CWD/setup.$PRGNAM  > $PKG/var/log/setup/setup.$PRGNAM
+chmod 755 $PKG/var/log/setup/setup.$PRGNAM
+
+mkdir -p $PKG/install
+cat $CWD/slack-desc > $PKG/install/slack-desc
+sed -e "s%@PG_VERSION@%$PG_VERSION%" \
+  -e "s%@PRGNAM@%$PRGNAM%" \
+  -e "s%@LIBDIRSUFFIX@%$LIBDIRSUFFIX%" \
+  $CWD/doinst.sh > $PKG/install/doinst.sh
+
+cd $PKG
+/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE
diff --git a/system/postgresql15/postgresql15.info b/system/postgresql15/postgresql15.info
new file mode 100644
index 00000000000..11d0d3288e0
--- /dev/null
+++ b/system/postgresql15/postgresql15.info
@@ -0,0 +1,10 @@
+PRGNAM="postgresql15"
+VERSION="15.10"
+HOMEPAGE="https://www.postgresql.org"
+DOWNLOAD="https://ftp.postgresql.org/pub/source/v15.10/postgresql-15.10.tar.gz"
+MD5SUM="5dbee44cb2cca9e02694f9b0438e254c"
+DOWNLOAD_x86_64=""
+MD5SUM_x86_64=""
+REQUIRES=""
+MAINTAINER="Willy Sudiarto Raharjo"
+EMAIL="willysr@slackbuilds.org"
diff --git a/system/postgresql15/postgresql15.logrotate b/system/postgresql15/postgresql15.logrotate
new file mode 100644
index 00000000000..489effe6423
--- /dev/null
+++ b/system/postgresql15/postgresql15.logrotate
@@ -0,0 +1,9 @@
+/var/log/@PRGNAM@-@PG_VERSION@ {
+    daily
+    rotate 7
+    copytruncate
+    delaycompress
+    compress
+    notifempty
+    missingok
+}
diff --git a/system/postgresql15/rc.postgresql15.new b/system/postgresql15/rc.postgresql15.new
new file mode 100644
index 00000000000..3105ad108e9
--- /dev/null
+++ b/system/postgresql15/rc.postgresql15.new
@@ -0,0 +1,171 @@
+#!/bin/bash
+
+# PostgreSQL startup script for Slackware Linux
+#
+# $Revision$
+# $Date$
+#
+# Copyright 2007-2018 Adis Nezirovic <adis_at_linux.org.ba>
+# All rights reserved.
+#
+# Redistribution and use of this script, with or without modification, is
+# permitted provided that the following conditions are met:
+#
+# 1. Redistributions of this script must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+#
+#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
+#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
+#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+# Do not source this script (since it contains exit() calls)
+#
+# Since version 9.3 this startup script can run multiple PostgreSQL
+# versions on different ports and with different data dirs.
+#
+# e.g. PG_VERSION=14 PG_PORT=6432 /etc/rc.d/rc.@PRGNAM@ start
+
+PG_VERSION=${PG_VERSION:-@PG_VERSION@}
+PG_PORT=${PG_PORT:-@PG_PORT@}
+LIBDIRSUFFIX="@LIBDIRSUFFIX@"
+LOGFILE=/var/log/@PRGNAM@-$PG_VERSION
+DATADIR=/var/lib/pgsql/$PG_VERSION/data
+POSTGRES=/usr/lib${LIBDIRSUFFIX}/@PRGNAM@/$PG_VERSION/bin/postgres
+PG_CTL=/usr/lib${LIBDIRSUFFIX}/@PRGNAM@/$PG_VERSION/bin/pg_ctl
+PIDFILE=$DATADIR/postmaster.pid
+
+# oom-killer score
+#
+# https://www.postgresql.org/docs/15/kernel-resources.html#LINUX-MEMORY-OVERCOMMIT
+PG_OOM_ADJUST_FILE=/proc/self/oom_score_adj
+PG_MASTER_OOM_SCORE_ADJ=-1000
+PG_CHILD_OOM_SCORE_ADJ=0
+PG_ENV="PG_OOM_ADJUST_FILE=$PG_OOM_ADJUST_FILE PG_OOM_ADJUST_VALUE=$PG_CHILD_OOM_SCORE_ADJ"
+
+# Return values (according to LSB):
+# 0 - success
+# 1 - generic or unspecified error
+# 2 - invalid or excess argument(s)
+# 3 - unimplemented feature (e.g. "reload")
+# 4 - insufficient privilege
+# 5 - program is not installed
+# 6 - program is not configured
+# 7 - program is not running
+
+pg_ctl()
+{
+	CMD="$PG_CTL -o '-p $PG_PORT' $@"
+	su - postgres -c "$PG_ENV $CMD"
+}
+
+if [ ! -f $POSTGRES ]; then
+	echo "Could not find 'postgres' binary. Maybe PostgreSQL is not installed properly?"
+	exit 5
+fi
+
+case "$1" in
+
+	"start")
+		echo "Starting PostgreSQL"
+		touch $LOGFILE
+		chown postgres:wheel $LOGFILE
+		chmod 0640 $LOGFILE
+
+		if [ ! -e $DATADIR/PG_VERSION ]; then
+			echo "You should initialize the PostgreSQL database at location $DATADIR"
+			echo "e.g. su postgres -c \"initdb -D $DATADIR --locale=en_US.UTF-8 -A md5 -W\""
+			exit 6
+		fi
+
+		if [ $(pgrep -f $POSTGRES) ]; then
+
+			echo "PostgreSQL daemon already running"
+			if [ ! -f $PIDFILE ]; then
+				echo "Warning: Missing pid file $PIDFILE"
+			fi
+			exit 1
+
+		else
+			test -e "$PG_OOM_ADJUST_FILE" && echo "$PG_MASTER_OOM_SCORE_ADJ" > "$PG_OOM_ADJUST_FILE"
+			pg_ctl start -w -l $LOGFILE -D $DATADIR
+			exit 0
+		fi
+	;;
+
+	"stop")
+		echo "Shutting down PostgreSQL..."
+		pg_ctl stop -l $LOGFILE -D $DATADIR -m smart
+	;;
+
+	"force-stop")
+		# Take care! This will kill _all_ client connections
+		# and rollback current transactions.
+		echo "Shutting down PostgreSQL (fast)..."
+		pg_ctl stop -l $LOGFILE -D $DATADIR -m fast
+	;;
+
+	"unclean-stop")
+		# Take care! This will abort server process itself
+		# resulting with database recovery on next start.
+		echo "Shutting down PostgreSQL (immediate)..."
+		pg_ctl stop -l $LOGFILE -D $DATADIR -m immediate
+	;;
+
+	"restart")
+		echo "Restarting PostgreSQL..."
+		test -e "$PG_OOM_ADJUST_FILE" && echo "$PG_MASTER_OOM_SCORE_ADJ" > "$PG_OOM_ADJUST_FILE"
+		pg_ctl restart -l $LOGFILE -D $DATADIR -m smart
+	;;
+
+	"force-restart")
+		# Take care! This will kill _all_ client connections
+		# and rollback current transactions.
+		echo "Restarting PostgreSQL (fast)..."
+		pg_ctl restart -l $LOGFILE -D $DATADIR -m fast
+	;;
+
+	"unclean-restart")
+		# Take care: This will abort server process itself
+		# resulting with database recovery on start.
+		echo "Restarting PostgreSQL (immediate)..."
+		pg_ctl restart -l $LOGFILE -D $DATADIR -m immediate
+	;;
+
+	"reload")
+		echo "Reloading configuration for PostgreSQL..."
+		pg_ctl reload -l $LOGFILE -D $DATADIR -m smart
+	;;
+
+	"status")
+		if [ $(pgrep -f $POSTGRES) ]; then
+			echo "PostgreSQL is running"
+
+			if [ ! -e $PIDFILE ]; then
+				echo "Warning: Missing pid file $PIDFILE"
+			fi
+
+			exit 0
+		else
+			echo "PostgreSQL is stopped"
+
+			if [ -e $PIDFILE ]; then
+				echo "Detected stale pid file $PIDFILE"
+			fi
+
+			exit 0
+		fi
+	;;
+
+	*)
+		# unclean-stop and unclean-restart are not documented on purpose.
+		echo "Usage: $0 {start|stop|force-stop|status|restart|force-restart|reload}"
+		exit 1
+	;;
+esac
diff --git a/system/postgresql15/setup.postgresql15 b/system/postgresql15/setup.postgresql15
new file mode 100644
index 00000000000..2f0ec5f5496
--- /dev/null
+++ b/system/postgresql15/setup.postgresql15
@@ -0,0 +1,35 @@
+#!/bin/bash
+#BLURB="PostgreSQL @PG_VERSION@"
+
+PG_HOME=/var/lib/pgsql
+PG_USER=postgres
+PG_USER_ID=@UID@
+PG_GROUP=postgres
+PG_GROUP_ID=@GID@
+PG_VERSION=@PG_VERSION@
+
+echo "Adding PostgreSQL user and group..."
+groupadd -g $PG_GROUP_ID $PG_GROUP
+useradd -g $PG_GROUP -u $PG_USER_ID -d $PG_HOME -c PostgreSQL $PG_USER
+mkdir -p $PG_HOME/$PG_VERSION/data
+
+## default permissions
+echo "Setting up permissions..."
+chown -R $PG_USER:$PG_GROUP $PG_HOME
+chmod 700 $PG_HOME
+chmod 700 $PG_HOME/$PG_VERSION
+chmod 700 $PG_HOME/$PG_VERSION/data
+
+## database cluster
+if [ ! -f $PG_HOME/$PG_VERSION/data/PG_VERSION ]; then
+	echo "Creating database cluster in $PG_HOME/$PG_VERSION/data..."
+	su $PG_USER -c "initdb -D $PG_HOME/$PG_VERSION/data --locale=en_US.UTF-8 -A md5 -W"
+else
+	echo "*** WARNING ***" >&2
+	echo "  There is already a database cluster in $PG_HOME/$PG_VERSION/data." >&2
+	echo "  If you are upgrading from an older version of PostgreSQL" >&2
+	echo "  you will have to 'dump' and 'restore' your database." >&2
+	echo "  See PostgreSQL manual for more details." >&2
+fi
+
+echo "PostgreSQL post-installation setup completed"
diff --git a/system/postgresql15/slack-desc b/system/postgresql15/slack-desc
new file mode 100644
index 00000000000..12babadd39a
--- /dev/null
+++ b/system/postgresql15/slack-desc
@@ -0,0 +1,19 @@
+# HOW TO EDIT THIS FILE:
+# The "handy ruler" below makes it easier to edit a package description.
+# Line up the first '|' above the ':' following the base package name, and
+# the '|' on the right side marks the last column you can put a character in.
+# You must make exactly 11 lines for the formatting to be correct.  It's also
+# customary to leave one space after the ':' except on otherwise blank lines.
+
+            |-----handy-ruler------------------------------------------------------|
+postgresql15: postgresql15 (object-relational database management system)
+postgresql15:
+postgresql15: PostgreSQL is an advanced object-relational database management
+postgresql15: system (ORDBMS) based on POSTGRES. With more than 15 years of
+postgresql15: development history, it is quickly becoming the de facto
+postgresql15: database for enterprise level open source solutions.
+postgresql15:
+postgresql15: Homepage: https://www.postgresql.org
+postgresql15:
+postgresql15:
+postgresql15: