#!/bin/bash
svnver=`svn info | grep vision | awk '{print $2}'`
debdir=~/building/beryl/debs
build=1
force=0
update=1
install=0
clean=1

function getopt {
if echo $* | grep no-build >> /dev/null
	then
	build=0
fi
if echo $* | grep force >> /dev/null
	then
	force=1
fi
if echo $* | grep no-update >> /dev/null
	then
	update=0
fi
if echo $* | grep install >> /dev/null
	then
	install=1
fi

if echo $* | grep no-clean >> /dev/null
	then
	clean=0
fi
}

function updater {
	if svn up > /dev/null
		then
		echo svn update success		
	else
		echo svn update fail; servers might be down, use no-update to build
		exit 25
	fi
	if [ $svnver -eq `svn info | grep vision | awk '{print $2}'` ]
		then
		nochange=1
	else
		svnver=`svn info | grep vision | awk '{print $2}'`
		nochange=0
	fi
}

function copysafe {
	if [ -d $1 -a -d $2 ]
		then
		cp -R $1 $2
	fi
}

function debianize { #matches the debianizations with their projects
	for i in `ls trunk/distro-specific-build-files/`
		do
		if [ -d trunk/$i/debian ]
			then
			rm -rf trunk/$i/debian
		fi
		if [ "$1" == "copy" ]
			then
			copysafe trunk/distro-specific-build-files/$i/debian trunk/$i
		fi
	done
}

function getlist { #looks for debianized projects
	cd trunk
	initlist=$(find . -maxdepth 1 -type d | sed -e 's/^\.\///') #make sure beryl-core is done first
	for i in ${initlist}
		do
		if [ -d $i/debian ]
			then
			list=`echo $list $i`
		fi
	done
	list=$(echo beryl-core `echo $list | sed -e 's/beryl-core//'`)
	cd ..
}

function version {
	for i in ${list}
		do
		sed "1 s/)/svn$svnver)/" -i trunk/$i/debian/changelog
	done
}

function mover {
	newdebs=`ls | grep deb$ | grep svn$svnver`
	if [ -d $debdir/$svnver ]
		then
		echo found
	else
		mkdir $debdir/$svnver
	fi

	for i in ${newdebs}
		do
		mv $i $debdir/$svnver
	done
}

function build {
	for i in ${list}
		do
		cd trunk/$i
		./autogen.sh && dpkg-buildpackage -us -uc -rfakeroot
		make clean
		cd ..
		mover
		if [ "$i" == "beryl-core" ]
			then
			sudo dpkg -i $debdir/$svnver/beryl-dev*svn$svnver*.deb
		fi
		cd ..
	done
}

function install {
	sudo dpkg -i $debdir/$svnver/beryl* $debdir/$svnver/emerald*
}

function clean {
	rm trunk/*svn*.deb 2>> /dev/null
	rm trunk/*svn*.changes 2>> /dev/null
	rm trunk/*svn*.tar.gz 2>> /dev/null
	rm trunk/*svn*.dsc 2>> /dev/null
}

getopt $@#replace this with getopts when you have time

if [ $update -eq 1 ] ## could have done this [ blah blah ] && blah style, but people get confused
	then
	updater
fi
if [ $nochange -eq 0 -o $force -eq 1 ] 
	then
	debianize copy
	getlist
	version

	if [ $build -eq 1 ]
		then
		build
	fi

	if [ $install -eq 1 ]
		then
		install
	fi
	debianize #this will simply remove the copied debian dirs used to compile
else
	echo no updates found
fi

if [ $clean -eq 1 ]
	then
	clean
fi