#!/bin/bash

. tools/inc/colors

DISTRO=$(lsb_release -i| sed 's/^[^:]*:\t//' | tr '[:upper:]' '[:lower:]')


# helper functions:
git_version()
{
    GITVERSION=`git describe`
    GITMODIFIED=`(git status | grep "modified:\|added:\|deleted:" -q) && echo "-M"`
    echo $GITVERSION$GITMODIFIED
}

perl_dep_check()
{
	echo -n " * checking perl dependencies"
    PERL_MODULES=$(cat tools/inc/perl.modules.base)
    [ -e .perl_modules_missing ] && rm .perl_modules_missing
    [ -e .perl_deps_guess ] && rm .perl_deps_guess
    for pm in $PERL_MODULES; do
    	perl -e "use $pm" 2>>/dev/null || echo $pm >> .perl_modules_missing;
    done
    if [ -e .perl_modules_missing ]; then
    	echo -e " [${LightRed}failed${NC}]"
    	echo "   Following perl modules are required and could not be found on your system:"
    	for pm in $(cat .perl_modules_missing); do
    		echo -n "     $pm"
    		if [ -e tools/inc/perl.modules.$DISTRO ]; then
    			GUESS_INSTALL=$(cat tools/inc/perl.modules.$DISTRO|grep $pm| awk '{print $2}')
    			if [ ! -z $GUESS_INSTALL ]; then 
    				echo " ($GUESS_INSTALL)"
    				echo "$GUESS_INSTALL" >> .perl_deps_guess
    			else
    			    echo ""
    			fi
    		else 
    			echo ""
    		fi
    	done
    	if [ -e .perl_deps_guess ]; then
	    	echo "   To install the missing dependencies run:"
    		echo -n "     apt-get install"
    		for d in $(cat .perl_deps_guess | sort -u); do
    			echo -n " $d"
    		done
    		echo ""
    		exit 1
    	fi
	else
		echo -e " [${LightGreen}done${NC}]"
    fi
}

make_tarball()
{
	echo -n " * create openslx tarball"
	VERSIONSTRING="openslx-$(git_version)"
	rm -rf $VERSIONSTRING.tar $VERSIONSTRING.tar.*
	git archive --format=tar --prefix=$VERSIONSTRING/ -o $VERSIONSTRING.tar HEAD
	bzip2 $VERSIONSTRING.tar
	echo -e " [${LightGreen}done${NC}]"
}

perl_dep_check
make_tarball
git_version