#!/bin/bash

# Slackware build script for PostgreSQL
#
# 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.

# Modified by the SlackBuilds.org Project

PRGNAM=postgresql
VERSION=${VERSION:-10.17}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}

PG_VERSION=${PG_VERSION:-10.17}
PG_PORT=${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

CWD=$(pwd)
TMP=${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 2>&1 > /dev/null; 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 2>&1 > /dev/null; 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 $TMP/$PRGNAM-$VERSION $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
cd $PRGNAM-$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="$SLKCFLAGS" \
./configure \
  --prefix=/usr/lib${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

# 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/10/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 [ "x$PG_EXTENSIONS" = "xALL" ];then
  cd $TMP/$PRGNAM-$VERSION/contrib
  make all
  make install-strip DESTDIR=$PKG
else
  for ext in $PG_EXTENSIONS; do
    cd $TMP/$PRGNAM-$VERSION/contrib/$ext
    make
    make install-strip DESTDIR=$PKG
  done
fi

cd $TMP/$PRGNAM-$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:-tgz}