#!/bin/bash

##########################################################
#VBuild - Package build script for use on VectorLinux 5.8#
##########################################################
#Eugene Suter <easuter at gmail.com >                    # 
#You are free to modify this scrip under the terms of the#
#GNU General Public License.                             #
##########################################################

TMP=/tmp
CWD=`pwd`
NAME=git
VERSION=1.5.1.2
ARCH=i586
RELEASE=4vl58
SYSCONF=/etc
PREFIX=/usr
BUILD_DIR=${TMP}/${NAME}-package  
REBUILD_DIR=${BUILD_DIR}/rebuild
TARBALL_NAME=${NAME}-${VERSION}.tar.*
#Chose between tgz, tlz org tbz package formats here.
PKG_FORMAT=.tlz
PKG_DEST=${TMP}/finished-packages
PKG_NAME=${NAME}-${VERSION}-${ARCH}-${RELEASE}${PKG_FORMAT}
CLEANUP=Y
VL_PACKAGER=easuter

#Check if user has super user privilages:

if [ ${UID} != 0 ]; then
	echoc "You need to be root to run this script." red
	exit
fi

#Make sure the packages have their own directory:

if [ ! -d ${PKG_DEST} ]; then
	mkdir -p ${PKG_DEST}
fi

#Check if RequiredBuilder is installed, if not then exit:

if [ ! -e /usr/bin/requiredbuilder ]; then
	echoc "RequiredBuilder isn't installed, exiting..." red
	exit
fi

#The Glibc iconv is necessary to build Git (Slackware - Vector
#conflict thing...)

mv /usr/include/iconv.h /usr/include/iconv.h.backup
cp ${CWD}/iconv.h-glibc-2.3.6 /usr/include/iconv.h

#Clean out the build space first and then make the
#necessary directories, extract the sources and enter the 
#package source tree:

rm -rf ${BUILD_DIR}

mkdir -p ${BUILD_DIR}
mkdir -p ${REBUILD_DIR}
cd ${BUILD_DIR}
cp ${CWD}/${TARBALL_NAME} ./
tar xvf ${BUILD_DIR}/${TARBALL_NAME}

cd ${NAME}-${VERSION} 


if [ $ARCH = "i586" ]; then
	export CFLAGS="-O2 -mtune=i686 -march=i586"
fi

if [ $ARCH = "i486" ]; then
	export CFLAGS="-O2 -mtune=i686 -march=i486"
fi 

if [ $ARCH = "i386" ]; then
	export CFLAGS="-O2 -mtune=i686 -march=i386"
fi

export CXXFLAGS="$CFLAGS"

#Give root ownership of the files:

chown -R root.root ./

cp ${CWD}/slack-desc ./

#Write build information to the end of "description-pak":

cat >> slack-desc << EOF

#----------------------------------------

BUILDDATE: `date`
PACKAGER:  $VL_PACKAGER
HOST:      `uname -srm`
DISTRO:    `cat /etc/vector-version`
CFLAGS:    $CFLAGS
CONFIGURE: `awk "/\.\/configure\ /" config.log`

EOF

#Git doesn't use a configure script for its sources, nor does
#passing arguments to make seem to work 100% so a pre-configured
#Makefile should be used for packaging purposes

rm ./Makefile
cp ${CWD}/Makefile ./

make

if ( ! make ); then
	echoc "Make failed!" red
	exit
fi

#Checkinstall doesn't seem to work properly with Git either, so
#build the package manually:


mkdir ${REBUILD_DIR}/install
cp ./slack-desc ${REBUILD_DIR}/install
make DESTDIR=${REBUILD_DIR} install

cd ${REBUILD_DIR}

requiredbuilder -v -y ./

makepkg -l y -c n ${PKG_NAME}

cp ${PKG_NAME} ${PKG_DEST}

#REstore iconv.h to its original state:

rm /usr/include/iconv.h
mv /usr/include/iconv.h.backup /usr/include/iconv.h

#Do some spring-cleaning (or not):

if [ $CLEANUP = "Y" ]; then
	rm -rf $BUILD_DIR
fi

#EOF