#!/bin/sh
#
# by root@scourge
# installs System.map-${KVERSION} into unmounted and mounted /boot 
# and vmlinuz-${KVERSION} into mounted /boot
#
# for use with gentoo or any other linux which uses /boot partitions and grub.
# 
# NOTE: this does NOT run lilo!!
#	it is not compatible with the debian-style installkernel.sh 
#	which is called by "make install" during/after linux kernel build.

REBUILDMODS="nvidia-kernel kqemu arpstar ndiswrapper"
REBUILDTOOLS="dbus iptables module-init-tools svgalib udev"

KVERSION=$(/bin/pwd | cut -d "-" -f 2-)

B_WASMNTED=0
if $(grep boot /etc/mtab > /dev/null) ; then
    echo "unmounting /boot"
    umount /boot
    B_WASMNTED=1
fi
echo "copying stuff"
cp -i $PWD/System.map /boot/System.map-${KVERSION} > /dev/null
echo "mounting /boot"
mount /boot
echo "copying stuff"
cp -i $PWD/System.map /boot/System.map-${KVERSION} > /dev/null
cp -i $PWD/arch/i386/boot/bzImage /boot/vmlinuz-${KVERSION} > /dev/null

while : ; do
    echo -n "Edit /boot/grub/grub.conf? "
    read i
    case $i in 
	y|Y)
	    ${EDITOR} /boot/grub/grub.conf
	    break;;
	n|N)
	    break;;
    esac
done

if [ ${B_WASMNTED} = 0 ] ; then
    echo "unmouning /boot again"
    umount /boot 
fi

echo -n "Adjust /usr/src/linux symlink? "
read i
case $i in 
	y|Y) cd /usr/src
		[ -e linux ] && rm linux
		ln -s linux-${KVERSION} linux
		cd linux
	;;
	n|N) echo "No further action possible without a new symlink. Exiting."
		exit 0
	;;
esac

### ask questions first, build stuff later:
TO_EMERGE=""

echo -n "Rebuild the pwc module? "
read i
case $i in 
	y|Y) 
		PWC_KVERSION=$(grep PWC_VERSION /usr/src/linux-${KVERSION}/drivers/usb/media/pwc/pwc.h | awk '{print $3}' | awk '{FS="-"}{print $1}' | tr -d '"' | awk -F- '{print $1}')
		PWC_PVERSION=$(emerge --nocolor -pv media-video/usb-pwc-re | grep ebuild | awk '{print $4}' | awk -F- '{print $NF}' )
		if [ $PWC_KVERSION > $PWC_PVERSION ]; then
			echo "Version in kernel is newer than the one in portage.\nNot emerging."
		else
			TO_EMERGE="${TO_EMERGE} pwc"
		fi
	;;
esac


for mod in ${REBUILDMODS}; do
echo -n "rebuild the $mod module? "
read i
case $i in 
	y|Y)
		TO_EMERGE="${TO_EMERGE} ${mod}"
	;;
esac
done

echo -n "Recompile Programs known to break sometimes (${REBUILDTOOLS})? "
read i
case $i in 
	y|Y)
		for t in ${REBUILDTOOLS}; do
			echo -n"emerge ${t}? "
			read i
			case $i in
				y|Y)
				TO_EMERGE="${TO_EMERGE} ${it}"
					;;
			esac
		done
	;;
esac

## now build the good stuff:
if [[ -n "$TO_EMERGE" ]]; then
	emerge $TO_EMERGE || echo -e "You wanted these ebuild built, but something went wrong:\n $TO_EMERGE"
fi

echo "end."

# set vi:ts=4