#!/bin/sh

# Slackware build script for CDE

# Copyright 2013 Matteo Bernardini <ponce@slackbuilds.org>, Pisa, Italy
# 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.

PRGNAM=CDE
VERSION=${VERSION:-20131020_6b0da8f}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i486 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

CWD=$(pwd)
TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

if [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$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

DOCS="CONTRIBUTORS COPYING HISTORY README copyright"
SRCNAM=cde-src
PREFIX=/usr/dt # this is hardcoded in the sources
CDEGRP=${CDEGRP:-cde}
CDEGID=${CDEGID:-310}

# Check for $CDEGRP presence
if ! getent group "$CDEGRP" 2>&1 > /dev/null; then
  printf "\n  You must have a \"$CDEGRP\" group in order to run this script.
  Add it with something like this:
    groupadd -g $CDEGID $CDEGRP\n"
  exit 1
fi

# Check for a previous install
if [ -d /var/dt ]; then
  printf "\n  You must cleanup from a previous install: issue an
  rm -fR /var/dt /usr/dt /etc/dt /usr/spool/calendar\n"
  exit 1
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG/usr $OUTPUT
cd $TMP
rm -rf $SRCNAM-$VERSION
tar xvf $CWD/$SRCNAM-$VERSION.tar.?z*
cd $SRCNAM-$VERSION/cde
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 {} \;

# http://sourceforge.net/p/cdesktopenv/wiki/LinuxBuild/
mkdir -p imports/x11/include
ln -s /usr/include/X11 imports/x11/include/X11

sed -i "s|-g -pipe|$SLKCFLAGS -pipe|" config/cf/linux.cf

CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
make -j1 World
( cd admin/IntegTools/dbTools
  ./installCDE -s $TMP/$SRCNAM-$VERSION/cde/ )

# we move stuff from the hardcoded destinations of the make install
mkdir -p $PKG/etc $PKG/var/spool/calendar
mv $PREFIX $PKG/usr/
mv /etc/dt $PKG/etc/
mv /var/dt $PKG/var/

# remove some spam in /tmp
rm -f /tmp/CDE-*.err /tmp/CDE-*.good /tmp/CDE-*.lst /tmp/CDE-*.missing

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

install -m 0755 -D $CWD/files/CDE.sh $PKG/etc/profile.d/CDE.sh
install -m 0755 -D $CWD/files/CDE.csh $PKG/etc/profile.d/CDE.csh

# install a script to run in the post-install
install -m 0755 -D admin/IntegTools/post_install/linux/configRun \
  ${PKG}${PREFIX}/opt/sbin/configRun

# install a desktop file, a script to start the session and an xinitrc
install -m 0644 -D $CWD/files/cde.desktop $PKG/usr/share/xsessions/cde.desktop
install -m 0755 -D $CWD/files/startxsession.sh $PKG/usr/dt/bin/startxsession.sh
install -m 0755 -D $CWD/files/xinitrc.cde $PKG/etc/X11/xinit/xinitrc.cde

( cd ${PKG}${PREFIX} ; rm -f $DOCS )
mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a $DOCS $PKG/usr/doc/$PRGNAM-$VERSION
sed "s|@LIBDIRSUFFIX@|$LIBDIRSUFFIX|" $CWD/README.Slackware
  > $PKG/usr/doc/$PRGNAM-$VERSION/README.Slackware
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
sed "s|@CDEGRP@|$CDEGRP|" $CWD/doinst.sh > $PKG/install/doinst.sh

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