#!/bin/sh
# Heavily based on the Slackware 13.1 SlackBuild
# http://www.opencascade.org/
# Packagers Andrea Sciucca ( gohanz at infinito.it)
# Thanks to  Niels Horn SBO  and Arch PKGBUILD script
# http://www.slacky.eu
# 
#
#
# 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.
#
# Exit on most errors
set -e



# Set variables:
CWD=`pwd`
OUTPUT=${OUTPUT:-$CWD}
PKGNAME=OpenCASCADE
TMP=${TMP:-/tmp/txz/$PKGNAME}
PKG=$TMP/package
VERSION=${VERSION:-6.3.0}
ARCH=${ARCH:-i486}
JOBS=${JOBS:--j2}
BUILD=${BUILD:-3}
TAG=${TAG:-sl}

# Download sorce tarball if still not present
SOURCE="http://files.opencascade.com/OCC_6.3_release/OpenCASCADE_src.tgz"

if [ ! -e $CWD/OpenCASCADE_src.tgz ]; then
 wget $SOURCE
fi

# Set compiling FLAGS
if [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"; SLKLDFLAGS=""; LIBDIRSUFFIX=""; CHOST="i486"
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"; SLKLDFLAGS=""; LIBDIRSUFFIX=""; CHOST="i686"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"; SLKLDFLAGS="-L/usr/lib64"; LIBDIRSUFFIX="64"; CHOST="x86_64"
fi

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

# Decompress the source tarball
cd $TMP
tar xvzf $CWD/OpenCASCADE_src.tgz

echo -e "\E[0;32m+------------------------------+\E[0;0m"
echo -e "\E[0;32m| Start SlackBuild OpenCASCADE |\E[0;0m"
echo -e "\E[0;32m+------------------------------+\E[0;0m"

# Adjust permissions and ownerships
cd $PKGNAME$VERSION
chown -R root:root .
chmod -R u+w,go+r-w,a-s .


# Apply Service Pack 6 from http://www.salome-platform.org/
patch -p1 < $CWD/opencascade-6.3.0sp6.diff

# Apply patch from debian to correct the release number of the libraries
patch -p1 < $CWD/lib-release.patch

# Change to the directory where we'll build from
cd ros

# Set correct location for libraries
sed \
  -e "s|/lib /usr/lib|/lib${LIBDIRSUFFIX} /usr/lib${LIBDIRSUFFIX}|g" \
  -i aclocal.m4

autoreconf -f -i

# Building OpenCASCADE  package
LDFLAGS="$SLKLDFLAGS" \
CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
./configure	--prefix=/usr \
		--sysconfdir=/etc \
		--localstatedir=/var \
		--libdir=/usr/lib${LIBDIRSUFFIX} \
		--disable-static \
		--mandir=/usr/man \
		--with-tcl=/usr/lib${LIBDIRSUFFIX} \
		--with-tk=/usr/lib${LIBDIRSUFFIX} \
		--disable-debug \
		--enable-production \
		--build=$CHOST-slackware-linux

# Change the resulting Makefile so that we can use DESTDIR
sed -e "s|\$(prefix)|\$(DESTDIR)\$(prefix)|g" -i Makefile

make  $JOBS
make install DESTDIR=$PKG

cd ..

# Correct path of include files
mkdir -p $PKG/usr/include
mv $PKG/usr/inc $PKG/usr/include/$PKGNAME


# Correct path of source files
mkdir -p $PKG/usr/src/$PKGNAME
( set -e
  cd $PKG/usr
  mv config.h src/$PKGNAME/
  cd src
  for d in *; do
    if [ "$d" != "$PKGNAME" ]; then 
      mv $d $PKGNAME/
    fi
  done
)

# Remove unnecessary (and confusing) files
rm -r $PKG/usr/{lin,Linux,env_DRAW.sh}

mkdir -p $PKG/usr/share/$PKGNAME
cp -a data samples $PKG/usr/share/$PKGNAME


# Strip binaries and shared objects, if present
( cd $PKG
  find . | xargs file | grep "executable" | grep ELF | cut -f 1 -d : | xargs -r strip --strip-unneeded 2> /dev/null || true
  find . | xargs file | grep "shared object" | grep ELF | cut -f 1 -d : | xargs -r strip --strip-unneeded 2> /dev/null || true
  find . | xargs file | grep "current ar archive" | cut -f 1 -d : | xargs -r strip --strip-unneeded 2> /dev/null || true
)


#Add documentation files: readme, changelog and so on
mkdir -p $PKG/usr/doc/$PKGNAME-$VERSION/SlackBuild
cp -a README LICENSE ros/README.txt \
$PKG/usr/doc/$PKGNAME-$VERSION
chmod 644 $PKG/usr/doc/$PKGNAME-$VERSION/*


# Also add the slack-desk file and this slackbuild to the package
mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
cat $CWD/slack-desc > $PKG/usr/doc/$PKGNAME-$VERSION/SlackBuild/slack-desc
cat $CWD/$PKGNAME.SlackBuild > $PKG/usr/doc/$PKGNAME-$VERSION/SlackBuild/$PKGNAME.SlackBuild




cd $PKG
chown -R root:root $PKG
if [ -x /usr/bin/requiredbuilder ];then
requiredbuilder -y -v -b -s  $CWD $PKG
fi
# Create txz package
/sbin/makepkg -l y -c n $OUTPUT/opencascade-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-txz}


# Cleanup if enabled
if [ "$1" = "--cleanup" ]; then
 rm -rf $TMP
fi