#!/bin/bash

# Slackware build script for ircII

# Written by B. Watson (yalhcru@gmail.com)

# Licensed under the WTFPL. See http://www.wtfpl.net/txt/copying/ for details.

# I don't know why nobody's already done a SlackBuild for this.
# Normally I prefer all-lowercase package names, but this just looks
# *wrong* as "ircii".

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

PRGNAM=ircII
VERSION=${VERSION:-20190117_1}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}

SRCNAM=${PRGNAM,,}
SRCVER=${VERSION%_*}
DEBVER=${VERSION#*_}

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

DEFSRV="${DEFSRV:-SSLIRC/chat.freenode.org:6697}"
case "$DEFSRV" in
  none|NONE) ;;
  *:*) srvopt="--with-default-server=$DEFSRV" ;;
  *) echo "$0: invalid DEFSRV, use host:port, SSLIRC/host:port, or 'none'" 1>&2
     exit 1 ;;
esac

echo "=== DEFSRV='$DEFSRV', srvopt='$srvopt'"

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $SRCNAM-$SRCVER
tar xvf $CWD/$SRCNAM-$SRCVER.tar.gz
cd $SRCNAM-$SRCVER
tar xvf $CWD/${SRCNAM}_$SRCVER-$DEBVER.debian.tar.xz
chown -R root:root .
find -L .  -perm /111 -a \! -perm 755 -a -exec chmod 755 {} \+ -o \
        \! -perm /111 -a \! -perm 644 -a -exec chmod 644 {} \+

# apply most of Debian's patches.
rm -f debian/patches/0004-absolute-path*
for i in $( cat debian/patches/series ); do
  [ -e debian/patches/$i ] && patch -p1 < debian/patches/$i
done

# fix warnings caused by missing includes.
sed -i -e '1i#include <curses.h>' \
       -e '1i#include <term.h>' \
       source/term.c

# do not compile with termcap. there's no --disable-termcap or similar,
# have to do surgery.
sed -i -e '/AC_CHECK_LIB(termcap/s,termcap,ncurses,g' \
       -e 's,termcap\.h ,,' \
       configure.in
autoreconf -ifv

# is there a disadvantage to enabling emacs meta keys?
CFLAGS="$SLKCFLAGS -Wl,-s" \
CXXFLAGS="$SLKCFLAGS -Wl,-s" \
./configure \
  $srvopt \
  --with-emacs-meta-keys \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --sysconfdir=/etc \
  --localstatedir=/var \
  --mandir=/usr/man \
  --docdir=/usr/doc/$PRGNAM-$VERSION \
  --build=$ARCH-slackware-linux

make

# make install doesn't create this dir, and doesn't respect DESTDIR
# for the man dir.
mkdir -p $PKG/usr/man/man1
make install DESTDIR=$PKG mandir=$PKG/usr/man/man1

# package called ircII, so let's have an ircII executable.
ln -s irc-$VERSION $PKG/usr/bin/$PRGNAM

rm -f $PKG/usr/man/man1/irc.1
gzip -9 $PKG/usr/man/man1/*.1
ln -s ircII.1.gz $PKG/usr/man/man1/irc.1.gz

# Debian includes some extra man pages
for i in debian/*.1; do
  gzip -9c < $i > $PKG/usr/man/man1/$( basename $i ).gz
done

rm -f doc/*.1 doc/*.spec*
mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a ChangeLog NEWS README doc/* contrib $PKG/usr/doc/$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:-tgz}