#!/bin/bash

# Slackware build script for haproxy

# Copyright 2018 T3slider <t3slider@gmail.com>
# All rights reserved.
#
# Copyright 2022 Badchay <badchay@protonmail.com>
# 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=haproxy
VERSION=${VERSION:-2.7.6}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i586 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

# If the variable PRINT_PACKAGE_NAME is set, then this script will report what
# the name of the created package would be, and then exit. This information
# could be useful to other scripts.
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}

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

# This should work with Slackware-provided kernels, but you may wish to
# use 'generic' instead
TARGET=${TARGET:-linux-glibc}

# Include lua support? (Requires lua)
LUA=${LUA:-no}
# Perl Compatible Regular Expressions version 2 is enabled by default.
# You might want to use libpcre1 and/or JIT-enabled version instead.
PCRE=${PCRE:-PCRE2}
# Include QUIC (HTTP/3) support? (experimental).
# This requires QUICTLS.
QUIC=${QUIC:-no}

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
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 {} \;

LUAOPT=""
if [ "$LUA" == "yes" ]; then
    LUAOPT="USE_LUA=1"
else
    LUAOPT="USE_LUA="
fi

PCREOPT=""
if [ "$PCRE" != "PCRE2" ]; then
   PCREOPT=$(echo $PCRE | sed -e 's/USE_//' -e 's/=1//')
else
   PCREOPT="PCRE2"
fi

QUICOPT=""
if [ "$QUIC" == "yes" ]; then
    LUAOPT="USE_QUIC=1"
else
    LUAOPT="USE_QUIC="
fi

make \
    TARGET=$TARGET \
    USE_$PCREOPT=1 \
    $QUICOPT \
    USE_OPENSSL=1 \
    USE_ENGINE=1 \
    USE_ZLIB=1 \
    USE_NS=1 \
    USE_SYSTEMD= \
    $LUAOPT \
    EXTRA=""
make install \
    PREFIX=/usr \
    MANDIR=/usr/man \
    DOCDIR=/usr/doc/$PRGNAM-$VERSION \
    EXTRA="" \
    DESTDIR=$PKG

find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true

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

install -D -m 0644 $CWD/rc.$PRGNAM $PKG/etc/rc.d/rc.$PRGNAM.new

cp -a CONTRIBUTING LICENSE MAINTAINERS README BRANCHES SUBVERS VERDATE VERSION examples \
  $PKG/usr/doc/$PRGNAM-$VERSION

# If there's a CHANGELOG, installing at least part of the recent history
# is useful, but don't let it get totally out of control:
if [ -r CHANGELOG ]; then
  head -n 1000 CHANGELOG > $PKG/usr/doc/$PRGNAM-$VERSION/CHANGELOG
  touch -r CHANGELOG $PKG/usr/doc/$PRGNAM-$VERSION/CHANGELOG
fi

cp $CWD/{syslog.example,logrotate.example} $PKG/usr/doc/$PRGNAM-$VERSION/examples/

mkdir -p $PKG/etc/haproxy
mv $PKG/usr/doc/$PRGNAM-$VERSION/examples/errorfiles $PKG/etc/haproxy/errors
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
cat $CWD/doinst.sh > $PKG/install/doinst.sh

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE