#!/bin/sh
# $Header: /home/cvsd/magellan-cvs/magellan-src/bootstrap/scripts/bootstrap-magellan.sh,v 1.1 2005-07-04 00:44:57 niro Exp $
#
# bootstrap-magellan-chrooted-livecd.sh
# v0.3.6-r7 (21.10.2004)
# Niels Rogalla (niro@magellan-linux.de)
#
# creates a FHS compilant directory hirachy with devfs support
# then the magellan-baselayout will be installed
# All this will be handled from the host system via chroot

source /etc/sysconfig/rc
source $rc_functions


### setup ###
CDPATH=/mnt/cdrom
DEST=/mnt/magellan
TOOLCHAIN=${CDPATH}/bootstrap/tools/magellan-toolchain-0.3-i486.tar.bz2
CDMAGEDIR=${CDPATH}/bootstrap/mage-src
CDMAGETREE=${CDPATH}/mage-tree
CDPKGDIR=${CDPATH}/packages
CDMAGERC=/etc/mage.rc
VERSION=0.3.6-r7
METHOD=NET

# which profile ?
if [ -z "${1}" ]
then
	CDMAGEPROFILE=kernel24
else
	CDMAGEPROFILE="${1}"
fi

# which layout ?
if [ -z "${2}" ]
then
	LAYOUT=basesystem.defaults
else
	LAYOUT="${2}"
fi


### functions ###
die() {
	echo "Error: $@"
	return 1
}

secho() {
	local i
	i="$@"
	echo -e "\n${COLOREDSTAR}${i}"
}

mecho() {
	local i
	i="$@"
	echo -e "${COLMAGENTA}\t${i}${COLDEFAULT}"
}

necho() {
	local i
	i="$@"
	echo -e "${COLGREEN}${i}${COLDEFAULT}"
}

showversion() {
	echo -en "Magellan Bootstrap v${VERSION} "
	echo -e  "-- Niels Rogalla (niro@magellan-linux.de)"
}



if [ -z "${DEST}" ]
then
        echo -e "\n\$DEST not found. Your Magellan Chroot Variable must be declared."
        echo -e "example: export DEST=/mnt/magellan\n"
        exit 1
fi


enter_chroot() {
	secho Entering Chroot ...
	mount -t proc proc ${DEST}/proc
	mount -o bind /dev ${DEST}/dev

	chroot ${DEST} /tools/bin/env -i \
			HOME=/root TERM=$TERM PS1='\u:\w\$ ' \
			PATH=/bin:/usr/bin:/sbin:/usr/sbin:/tools/bin \
			/tools/bin/bash -i

	secho Cleanup Chroot ...
	mecho Unmounting Chroot filesystems ...
	(
		umount ${DEST}/proc
		umount ${DEST}/dev
	)
	evaluate_retval

	if [[ ${METHOD} = CDROM ]]
	then
		mecho Unmounting Mage directories ...
		(
			umount ${DEST}/usr/packages
			umount ${DEST}/usr/mage
		)
		evaluate_retval
	fi

	if [ -e ${DEST}/root/.bashrc ]
	then
		mecho Deleting instruction file ...
		rm ${DEST}/root/.bashrc
		evaluate_retval
	fi
}

create_chrootdirs() {
	local i

	# creating directories
	install -d ${DEST}/{bin,boot,dev/shm,etc,home,lib/dev-state,mnt,proc} || die
	install -d ${DEST}/etc/{opt,env.d} || die
	install -d ${DEST}/mnt/{floppy,cdrom} || die
	install -d ${DEST}/{root,sbin,tmp,usr/local,var,opt} || die
	for i in ${DEST}/usr ${DEST}/usr/local
	do
		install -d ${i}/{bin,etc,include,lib,sbin,share,src} || die
		ln -snf share/{man,doc,info} ${i} || die
		install -d ${i}/share/{dict,doc,info,locale,man} || die
		install -d ${i}/share/{nls,misc,terminfo,zoneinfo} || die
		install -d ${i}/share/man/man{1,2,3,4,5,6,7,8} || die
	done
	install -d ${DEST}/var/{lock,log,mail,run,spool} || die
	install -d ${DEST}/var/{tmp,opt,cache,lib/misc,local} || die
	install -d ${DEST}/opt/{bin,doc,include,info} || die
	install -d ${DEST}/opt/{lib,man/man{1,2,3,4,5,6,7,8}} || die

	## correcting some rights
	chmod 0750 ${DEST}/root || die
	chmod 1777 ${DEST}/tmp || die
	chmod 1777 ${DEST}/var/tmp || die

	## creating .keep files
	touch ${DEST}/{bin,boot,dev/shm,etc,home,lib/dev-state,mnt,proc}/.keep || die
	touch ${DEST}/etc/{opt,env.d}/.keep || die
	touch ${DEST}/mnt/{floppy,cdrom}/.keep || die
	touch ${DEST}/dev/.keep || die
	touch ${DEST}/etc/.keep || die
	touch ${DEST}/{root,sbin,tmp,usr/local,var,opt}/.keep || die
	touch ${DEST}/usr/.keep || die
	for i in ${DEST}/usr ${DEST}/usr/local
	do
		touch ${i}/{bin,etc,include,lib,sbin,share,src}/.keep || die
		touch ${i}/share/{dict,doc,info,locale,man}/.keep || die
		touch ${i}/share/{nls,misc,terminfo,zoneinfo}/.keep || die
		touch ${i}/share/man/man{1,2,3,4,5,6,7,8}/.keep || die
	done
	touch ${DEST}/var/.keep || die
	touch ${DEST}/var/{lock,log,mail,run,spool}/.keep || die
	touch ${DEST}/var/{tmp,opt,cache,lib/misc,local}/.keep || die
	touch ${DEST}/opt/.keep || die
	touch ${DEST}/opt/{bin,doc,include,info}/.keep || die
	touch ${DEST}/opt/{lib,man/man{1,2,3,4,5,6,7,8}}/.keep || die
	touch ${DEST}/opt/man/.keep || die
}


create_symlinks(){
	mecho Creating symlinks ...
	## Creating some essential symlinks for bootstrap
	(
		## Creating the bash and sh symlinks
		ln -snf /tools/bin/{basename,bash,cat,cut,date} ${DEST}/bin || die
		ln -snf /tools/bin/{dirname,egrep,fgrep,grep} ${DEST}/bin || die
		ln -snf /tools/bin/{ls,pwd,sed,stty,wc,whoami} ${DEST}/bin || die
		ln -snf /tools/lib/libgcc_s.so.1 ${DEST}/usr/lib || die
		ln -snf /tools/sbin/ldconfig ${DEST}/sbin/ldconfig || die
		ln -snf bash ${DEST}/bin/sh || die

		## needed empty files (to prevent warnings only)
		touch ${DEST}/etc/env.d/dummy || die
		touch ${DEST}/etc/profile || die
		install -d ${DEST}/etc/rc.d/init.d || die
		touch ${DEST}/etc/rc.d/init.d/functions || die
		ln -snf /etc/rc.d/init.d ${DEST}/etc/init.d || die
	)

	evaluate_retval
}

create_devices(){
	mecho Creating needed devices for devfs
	(
		mknod -m 611 ${DEST}/dev/console c 5 1
		chgrp 4 ${DEST}/dev/console
		mknod -m 666 ${DEST}/dev/null c 1 3
	)
	evaluate_retval
}

unpack_toolchain(){
	mecho Unpacking toolchain ...
	tar --no-same-owner -xvjf ${TOOLCHAIN} -C ${DEST}
	evaluate_retval
}

install_mage(){
	if [[ ${METHOD} = CDROM ]]
	then
		mecho Installing Mage ...
		( 
			install -d ${DEST}/usr/lib/mage
			install -d ${DEST}/etc/rc.d/init.d
			${CDMAGEDIR}/setup_mage.sh \
				${DEST} ${CDMAGEDIR} ${CDMAGERC} ${CDMAGEPROFILE}
			mount -o bind ${CDMAGETREE} ${DEST}/usr/mage
			mount -o bind ${CDPKGDIR} ${DEST}/usr/packages
		)
		evaluate_retval
	fi

	if [[ ${METHOD} = NET ]]
	then
		mecho Installing Mage ...
		(
			install -d ${DEST}/usr/lib/mage
			install -d ${DEST}/etc/rc.d/init.d
			${CDMAGEDIR}/setup_mage.sh \
				${DEST} ${CDMAGEDIR} ${CDMAGERC} ${CDMAGEPROFILE}
		)
		evaluate_retval
	fi
}

create_users() {
	mecho Creating basic passwd file ...
	echo 'root:x:0:0:root:/root:/bin/bash' > ${DEST}/etc/passwd
	evaluate_retval

	mecho Creating basic groups file ...
cat > ${DEST}/etc/group << "EOF"
root:x:0:
bin:x:1:
sys:x:2:
kmem:x:3:
tty:x:4:
tape:x:5:
daemon:x:6:
floppy:x:7:
disk:x:8:
lp:x:9:
dialout:x:10:
audio:x:11:
EOF
	evaluate_retval

}


create_bashrc() {
	cat ${rc_functions} > ${DEST}/root/.bashrc
	cat >> ${DEST}/root/.bashrc << "EOF"
		die() {
			DIE="yes"
		}
		secho() {
			local i
			i="$@"
			echo -e "\n${COLOREDSTAR}${i}"
		}
		mecho() {
			local i
			i="$@"
			echo -e "${COLMAGENTA}\t${i}${COLDEFAULT}"
		}
EOF
	echo "export PATH=/bin:/usr/bin:/sbin:/usr/sbin:/tools/bin" >> ${DEST}/root/.bashrc
	echo "export METHOD=${METHOD}" >> ${DEST}/root/.bashrc
	echo "export LAYOUT=${LAYOUT}" >> ${DEST}/root/.bashrc
	echo "export CDMAGEPROFILE=${CDMAGEPROFILE}" >> ${DEST}/root/.bashrc

	( source ${CDMAGERC}; echo "export MY_MAGEDIR=${MAGEDIR}" >> ${DEST}/root/.bashrc )

	cat >> ${DEST}/root/.bashrc << "EOF"
		if [[ ${METHOD} = NET ]]
		then
			mecho Updating Mage ...
			mage update
		fi

		# using default profile (if nothing given == kernel24)
		mecho Using ${MY_MAGEDIR}/profiles/${CDMAGEPROFILE}/${LAYOUT}
		source /etc/mage.rc
		ln -snf ${MY_MAGEDIR}/profiles/${CDMAGEPROFILE} /etc/mage-profile

		MY_LAYOUT=$(< /etc/mage-profile/${LAYOUT})

		mecho Installing Baselayout ...
		CONFIG_PROTECT="-*" mage install ${MY_LAYOUT}
		#evaluate_retval

		mecho Please enter a root password
		passwd root
	exit
EOF
}



# bootstrap process starts here
showversion
secho Starting bootstrap...

unpack_toolchain

mecho Creating directories ...
create_chrootdirs
evaluate_retval

create_symlinks
create_devices
install_mage
create_users

create_bashrc
enter_chroot

secho Bootstraping finished...
echo
necho "Your System isn't configured yet ..."
necho "Please edit /etc/fstab,"
necho "            /etc/hostname,"
necho "            /etc/hosts,"
necho "            /etc/resolv.conf,"
necho "            /etc/modules.autoload/kernel-VERSION,"
necho "            /boot/grub/grub.conf"
necho "that they fit to your needs ..."
necho "Don't forget to write your bootsector ..."
necho "After that you can delete ${DEST}/tools and reboot your system ..."
echo