#!/bin/bash

# Copyright 2008, 2009, 2010, 2015, 2018  Patrick J. Volkerding, Sebeka, MN, USA
# 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)

PKGNAM=windowmaker
VERSION=${VERSION:-$(echo WindowMaker-0*.tar.?z* | rev | cut -f 3- -d . | cut -f 1 -d - | rev)}
BUILD=${BUILD:-3}

NUMJOBS=${NUMJOBS:-" -j$(expr $(nproc) + 1) "}

# Automatically determine the architecture we're building on:
if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) export ARCH=i586 ;;
    arm*) export ARCH=arm ;;
    # Unless $ARCH is already set, use uname -m for all other archs:
       *) export ARCH=$( 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 "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PKGNAM-$VERSION-$ARCH-$BUILD.txz"
  exit 0
fi

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "s390" ]; then
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

TMP=${TMP:-/tmp}
PKG=$TMP/package-windowmaker

rm -rf $PKG
mkdir -p $TMP $PKG

cd $TMP
rm -rf WindowMaker-$VERSION
tar xvf $CWD/WindowMaker-$VERSION.tar.xz || exit 1
cd WindowMaker-$VERSION || exit 1

chown -R root:root .
find . \
  \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
  -exec chmod 755 {} \+ -o \
  \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
  -exec chmod 644 {} \+

# This should be non-interactive where possible.
zcat $CWD/wmaker.inst.diff.gz | patch -p1 --verbose || exit 1

# Get rid of OpenSUSE menu:
zcat $CWD/WindowMaker.noopensusemenu.diff.gz | patch -p1 --verbose || exit 1

LINGUAS="$(ls po/*.po | sed 's:po/\(.*\)\.po$:\1:' | tr '\012' '\040')" \
GNUSTEP_LOCAL_ROOT=/usr/lib${LIBDIRSUFFIX}/GNUstep \
CFLAGS="$SLKCFLAGS" \
NLSDIR=/usr/share/locale \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --mandir=/usr/man \
  --sysconfdir=/etc/X11 \
  --docdir=/usr/doc/WindowMaker-$VERSION \
  --enable-usermenu \
  --enable-randr \
  --enable-xinerama \
  --disable-static \
  --disable-magick \
  --build=$ARCH-slackware-linux || exit 1

# Disabling magick per this LQ thread:
# http://www.linuxquestions.org/questions/showthread.php?p=5284319#post5284319

# 20170223 bkw: WindowMaker has always been chatty, but starting with
# v0.95.6 or so, it also logs everything to syslog. In a typical week of
# running WindowMaker, I end up with 150KB of useless wmaker messages in
# /var/log/syslog (and 400 bytes of non-wmaker stuff there). Undefining
# HAVE_SYSLOG stops it from cluttering the log, and whatever it was
# going to log will still be printed to its stderr.
sed -i '/HAVE_SYSLOG/s,#define,#undef,' config.h

make $NUMJOBS || make || exit 1

# Change /usr/local/GNUstep to /usr/lib/GNUstep in the WMRootMenu:
sed -i -e "s#/usr/local/GNUstep/Applications/WPrefs.app/#/usr/lib${LIBDIRSUFFIX}/GNUstep/Applications/WPrefs.app/#" \
  $(grep -lr '/usr/local/GNUstep/Applications/WPrefs.app/' *)

# Fix hard coded paths in util/wmgenmenu.c for
#  "Configure Window Maker" root menu entry
#  Appearance/{Themes, Styles, Icons} entries.

sed -i -e "s#WMCreatePLString(\"WPrefs\")#WMCreatePLString(\"/usr/lib${LIBDIRSUFFIX}/GNUstep/Applications/WPrefs.app/WPrefs\")#" \
       -e "s#/usr/local/share#/usr/share/#" util/wmgenmenu.c

make install DESTDIR=$PKG || exit 1

mkdir -p $PKG/usr/doc/WindowMaker-$VERSION
cp -a \
  AUTHORS BUGFORM BUGS COPYING* FAQ* INSTALL* MIRRORS NEWS README* TODO \ 
   $PKG/usr/doc/WindowMaker-$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
  DOCSDIR=$(echo $PKG/usr/doc/*-$VERSION)
  cat ChangeLog | head -n 1000 > $DOCSDIR/ChangeLog
  touch -r ChangeLog $DOCSDIR/ChangeLog
fi

cd $TMP
rm -rf WindowMaker-extra-0.1
tar xvf $CWD/WindowMaker-extra-0.1.tar.xz || exit 1
cd WindowMaker-extra-0.1 || exit 1
CFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --with-iconsdir=/usr/share/pixmaps \
  --build=$ARCH-slackware-linux || exit 1

make $NUMJOBS || make || exit 1
make install DESTDIR=$PKG || exit 1

# Don't ship .la files:
rm -f $PKG/{,usr/}lib${LIBDIRSUFFIX}/*.la

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

mkdir -p $PKG/etc/X11/xinit
zcat $CWD/xinitrc.wmaker.gz > $PKG/etc/X11/xinit/xinitrc.wmaker
chmod 0755 $PKG/etc/X11/xinit/xinitrc.wmaker

# Compress manual pages:
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

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

cd $PKG
/sbin/makepkg -l y -c n $TMP/windowmaker-$VERSION-$ARCH-$BUILD.txz