#!/bin/bash
#
# Slackware build script for sic
# Copyright 2011  Haroldo F. Jardim <email removed>
# Now maintained by B. Watson <yalhcru@gmail.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.

# 20210924 bkw:
# - update for latest git.
# - add support for SLASH=yes.
# - add support for user config.h.
# - add support for patches.
# - update README to reflect the above.

# 20201113 bkw: The original author of this script hasn't been heard
# from since 2011, and it needs some attention (still mentions i486)
# so I'm taking it.
# - new maintainer
# - i486 => i586
# - fix that => than typo in slack-desc
# - expand README a bit
# - add env vars for default host and port
# - simplify script

cd $(dirname $0) ; CWD=$(pwd)

PRGNAM=sic
VERSION=${VERSION:-1.2+20210506_058547e}
BUILD=${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 [ ! -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

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$VERSION.tar.?z
cd $PRGNAM-$VERSION
chown -R root:root .
chmod 644 *

# this is more complex than it has to be: upstream released a a mix
# of -p0 and -p1 patches.
for i in $CWD/patches/*.diff; do
  if [ -e "$i" ]; then
    P=1
    patch --dry-run -p0 < $i &>/dev/null && P=0
    echo "=== Applying $( basename $i ) with -p$P"
    patch -p$P < $i
  fi
done

if [ -e "$CWD/config.h" ]; then
  # if the user's got his own config.h, use it
  cat "$CWD/config.h" > config.h
else
  # if not, use the upstream default
  cat config.def.h > config.h
fi

# IRCHOST IRCPORT SLASH modify the config.h, even overriding what's
# in the user's custom one. Also fixup the man page.
if [ -n "$IRCHOST" ]; then
  sed -i "/DEFAULT_HOST/s,\".*\"\$,\"$IRCHOST\"," config.h
  sed -i "/default host/s,(.*) *$,($IRCHOST)," $PRGNAM.1
fi

if [ -n "$IRCPORT" ]; then
  sed -i "/DEFAULT_PORT/s,\".*\"\$,\"$IRCPORT\"," config.h
  sed -i "/default port/s,(.*) *$,($IRCPORT)," $PRGNAM.1
fi

if [ "${SLASH:-no}" = "yes" ]; then
  sed -i "s|':'|'/'|" config.h
  sed -i '/^\.BI :/s,:,/,' $PRGNAM.1
fi

CFLAGS="$SLKCFLAGS -Wl,-s" \
DESTDIR=$PKG \
make \
  VERSION="$VERSION" \
  CFLAGS="$SLKCFLAGS" \
  PREFIX=/usr \
  MANPREFIX=/usr/man \
  install

gzip -9 $PKG/usr/man/man1/$PRGNAM.1

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a LICENSE README config.h $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

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

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