#!/bin/sh
# $Id$
# Copyright (c) 2007-2008 Eric Hameleers <alien@slackware.com>
# All rights reserved.
#
#   Permission to use, copy, modify, and distribute this software for
#   any purpose with or without fee is hereby granted, provided that
#   the above copyright notice and this permission notice appear in all
#   copies.
#
#   THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 AUTHORS AND COPYRIGHT HOLDERS AND THEIR
#   CONTRIBUTORS 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.
# -----------------------------------------------------------------------------
#
# Slackware SlackBuild script 
# ===========================
# By:        Eric Hameleers <alien@slackware.com>
# For:       pingus
# Descr:     a free Lemmings-like game
# URL:       http://pingus.seul.org/
# Needs:     boost, scons
# Changelog:
# 0.7.2-1:   05/Nov/2007 by Eric Hameleers <alien@slackware.com>
#            * Initial build.
# 0.7.2-2:   22/may/2008 by Eric Hameleers <alien@slackware.com>
#            * Add a patch so it builds against boost 1.35.
# 
# Run 'sh pingus.SlackBuild --cleanup' to build a Slackware package.
# The package (.tgz) plus descriptive .txt file are created in /tmp .
# Install using 'installpkg'. 
#
# -----------------------------------------------------------------------------

# Set initial variables:

PRGNAM=pingus
VERSION=${VERSION:-0.7.2}
ARCH=${ARCH:-i486}
BUILD=${BUILD:-2}
TAG=${TAG:-alien}

DOCS="AUTHORS COPYING ChangeLog NEWS README SConstruct TODO"

# Where do we look for sources?
SRCDIR=$(cd $(dirname $0); pwd)

# Place to build (TMP) package (PKG) and output (OUTPUT) the program:
TMP=${TMP:-/tmp/build}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

# Input URL: http://pingus.seul.org/files/pingus-0.7.2.tar.bz2
SOURCE="$SRCDIR/${PRGNAM}-${VERSION}.tar.bz2"
SRCURL="http://pingus.seul.org/files/${PRGNAM}-${VERSION}.tar.bz2"

##
## --- with a little luck, you won't have to edit below this point --- ##
##

# Exit the script on errors:
set -e
trap 'echo "$0 FAILED at line $LINENO!" | tee $OUTPUT/error-${PRGNAM}.log' ERR
# Catch unitialized variables:
set -u
P1=${1:-1}

# Slackware 11 and up need other option (gcc > 3.3.x)
if [ $(gcc -dumpversion | tr -d  '.' |cut -c 1-2) -gt 33 ]; then
  MOPT=tune
else
  MOPT=cpu
fi

case "$ARCH" in
  i486)      SLKCFLAGS="-O2 -march=i486 -m${MOPT}=i686"
             SLKLDFLAGS=""; LIBDIRSUFFIX=""
             ;;
  s390)      SLKCFLAGS="-O2"
             SLKLDFLAGS=""; LIBDIRSUFFIX=""
             ;;
  powerpc)   SLKCFLAGS="-O2"
             SLKLDFLAGS=""; LIBDIRSUFFIX=""
             ;;
  x86_64)    SLKCFLAGS="-O2 -fPIC"
             SLKLDFLAGS="-L/usr/lib64"; LIBDIRSUFFIX="64"
             ;;
  athlon-xp) SLKCFLAGS="-march=athlon-xp -O3 -pipe -fomit-frame-pointer"
             SLKLDFLAGS=""; LIBDIRSUFFIX=""
             ;;
esac

# Create working directories:
mkdir -p $TMP/tmp-$PRGNAM # location to build the source
rm -rf $TMP/tmp-$PRGNAM/* # remove the remnants of previous build
mkdir -p $PKG             # place for the package to be built
rm -rf $PKG/*             # erase old package's contents
mkdir -p $OUTPUT          # place for the package to be saved

# Source file availability:
if ! [ -f ${SOURCE} ]; then
  if ! [ "x${SRCURL}" == "x" ]; then
    # Check if the $SRCDIR is writable at all - if not, download to $OUTPUT
    [ -w "$SRCDIR" ] || SOURCE="$OUTPUT/$(basename $SOURCE)"
    echo "Source '$(basename ${SOURCE})' not available yet..."
    echo "Will download file to $(dirname $SOURCE)"
    wget -nv -T 30 -O "${SOURCE}" "${SRCURL}" || true
    if [ $? -ne 0 -o ! -s "${SOURCE}" ]; then
      echo "Downloading '$(basename ${SOURCE})' failed... aborting the build."
      mv -f "${SOURCE}" "${SOURCE}".FAIL
      exit 1
    fi
  else
    echo "File '$(basename ${SOURCE})' not available... aborting the build."
    exit 1
  fi
fi

if [ "$P1" == "--download" ]; then
  echo "Download complete."
  exit 0
fi

# --- PACKAGE BUILDING ---

echo "++"
echo "|| $PRGNAM-$VERSION"
echo "++"

cd $TMP/tmp-$PRGNAM

echo "Extracting the source archive(s) for $PRGNAM..."
if $(file ${SOURCE} | grep -q ": bzip2"); then
  tar -xjvf ${SOURCE}
elif $(file ${SOURCE} | grep -q ": gzip"); then
  tar -xzvf ${SOURCE}
fi
cd ${PRGNAM}-${VERSION}
# Patch for boost 1.35 (should not harm older boost though):
patch -p0 < $SRCDIR/pingus_boost.patch 2>&1 | tee $OUTPUT/patch-${PRGNAM}.log
chown -R root:root .
chmod -R u+w,go+r-w,a-s .

echo Building ...
export LDFLAGS="$SLKLDFLAGS"
export CFLAGS="$SLKCFLAGS"
export CXXFLAGS="$SLKCFLAGS"
scons 2>&1 | tee $OUTPUT/make-${PRGNAM}.log

# Install all the needed stuff to the package dir:
./install.sh $PKG/usr 2>&1 | tee $OUTPUT/install-${PRGNAM}.log

# Data:
mkdir -p $PKG/usr/share/pingus/data/{demos,metamap,prefabs,themes}
cp data/themes/*.xml $PKG/usr/share/pingus/data/themes/
cp data/demos/*.* $PKG/usr/share/pingus/data/demos/
cp data/prefabs/*.xml $PKG/usr/share/pingus/data/prefabs/
install -m 644 data/metamap/metamap.xml $PKG/usr/share/pingus/data/metamap/

# Don't forget the man page:
mkdir -p $PKG/usr/man/man6
cp doc/pingus.6 $PKG/usr/man/man6

# Add a menu entry:
mkdir -p $PKG/usr/share/pixmaps
cp $SRCDIR/pingus.png $PKG/usr/share/pixmaps/
mkdir -p $PKG/usr/share/applications
cp $SRCDIR/pingus.desktop $PKG/usr/share/applications/

# Update the desktop database after installation:
mkdir -p $PKG/install
cat <<-EOT > $PKG/install/doinst.sh
	# Update the desktop database:
	if [ -x usr/bin/update-desktop-database ]; then
	  chroot . /usr/bin/update-desktop-database /usr/share/applications > /dev/null
	2>&1
	fi
	EOT

# Add documentation:
mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a $DOCS $PKG/usr/doc/$PRGNAM-$VERSION || true
cp -a $SRCDIR/$(basename $0) $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
find $PKG/usr/doc -type f -exec chmod 644 {} \;

# Compress the man page(s):
find $PKG/usr/man -type f -name "*.?" -exec gzip -9f {} \;

# Strip binaries:
cd $PKG
find . | xargs file | grep "executable" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true
find . | xargs file | grep "shared object" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true
cd -

# Add a package description:
mkdir -p $PKG/install
cat $SRCDIR/slack-desc > $PKG/install/slack-desc
if [ -f $SRCDIR/doinst.sh ]; then
  cat $SRCDIR/doinst.sh >> $PKG/install/doinst.sh
fi
if [ -f $SRCDIR/slack-required ]; then
  cat $SRCDIR/slack-required > $PKG/install/slack-required
fi

# Build the package:
cd $PKG
makepkg --linkadd y --chown n $OUTPUT/${PRGNAM}-${VERSION}-${ARCH}-${BUILD}${TAG}.tgz 2>&1 | tee $OUTPUT/makepkg-${PRGNAM}.log
cd $OUTPUT
md5sum ${PRGNAM}-${VERSION}-${ARCH}-${BUILD}${TAG}.tgz > ${PRGNAM}-${VERSION}-${ARCH}-${BUILD}${TAG}.tgz.md5
cd -
cat $PKG/install/slack-desc | grep "^${PRGNAM}" > $OUTPUT/${PRGNAM}-${VERSION}-${ARCH}-${BUILD}${TAG}.txt
if [ -f $PKG/install/slack-required ]; then
  cat $PKG/install/slack-required > $OUTPUT/${PRGNAM}-${VERSION}-${ARCH}-${BUILD}${TAG}.dep
fi

# Clean up the extra stuff:
if [ "$P1" = "--cleanup" ]; then
  rm -rf $TMP/tmp-$PRGNAM
  rm -rf $PKG
fi