#!/bin/bash
# This script allows you to take Fedora or other rpm based distributions
# and install all rpms within a chroot environment. As such chroot environments
# can be nicely used to build rpm packages, I also call them buildroot
# environments.
# Once this script has finished, you can work within a buildroot environment:
#	chroot $ROOTDIR su -
# To remove a buildroot environment:
#	umount $ROOTDIR/proc
#	rm -fr $ROOTDIR

# Please make sure you understand the below script, verify it will also work
# for your environment before starting it.
exit 0

FEDORA=/var/www/html/mirror/fedora
RPMS=/home/data/3.0E/RedHat/RPMS
RPMS=$FEDORA/1/i386/os/Fedora/RPMS
RPMS=$FEDORA/development/i386/Fedora/RPMS
ROOTDIR=/home/chroot-3.0E
ROOTDIR=/mnt/build/fedora
ROOTDIR=/home/chroot-fedora

umask 022
PATH=$PATH:/sbin
export PATH

test -d $ROOTDIR/proc && { echo "Already exists!"; exit 1; }
mkdir -p $ROOTDIR/{proc,dev/shm,dev/pts,etc/sysconfig}
ROOTDEV=`df -P $ROOTDIR | awk '/^\/dev/ { print $1 }'`
case $ROOTDEV in
    /dev/hd[abcd]?)
	;;
    /dev/sd[a-m]?)
	;;
    /dev/dasd[a-z]?)
	;;
    *)
	echo "Wrong root device."
	exit 1
	;;
esac
test -d "$RPMS" || { echo "No rpms found!"; exit 1; }

cp -a /dev/null $ROOTDIR/dev/
mount -t proc proc $ROOTDIR/proc
# XXX: maybe add mounting /dev/pts and /dev/shm here too:
#mount -t tmpfs none $ROOTDIR/dev/shm
#mount -t devpts -o gid=5,mode=620 none $ROOTDIR/dev/pts

cat > $ROOTDIR/etc/fstab <<EOF
$ROOTDEV   /           ext3   defaults        1 1
none       /dev/pts    devpts gid=5,mode=620  0 0
none       /proc       proc   defaults        0 0
none       /dev/shm    tmpfs  defaults        0 0
EOF

# write /etc/mtab
# XXX ln -snf /proc/self/mounts /etc/mtab  ???
AWK=`echo '{ if (index($2, "@ROOTDIR@/") == 1) print sprintf("%s %s %s %s %s %s", $1, substr($2, length("@ROOTDIR@/")), $3, $4, $5, $6); }' | sed "s#@ROOTDIR@#$ROOTDIR#g"`
cat /proc/mounts | awk "$AWK" > $ROOTDIR/etc/mtab

test $HOSTTYPE = i386 && {
    LD_ASSUME_KERNEL=2.2.5
    export LD_ASSUME_KERNEL
}
cd $RPMS || { echo "No rpms found!"; exit 1; }
if test $HOSTTYPE = i386 ; then
    r=`ls *.{$HOSTTYPE,i686,noarch}.rpm`
else
    r=`ls *.{$HOSTTYPE,noarch}.rpm`
fi
s=""
for i in $r ; do
    case $i in
	glibc-2*.i386.rpm)	;;
	openssl-0*.i386.rpm)	;;
	kernel-smp*)		;;
	kernel-BOOT*)		;;
	glibc-debug*)		;;
	tetex-doc*)		;;
	rpmdb-*)		;;
	openoffice*)		;;
	kde-i18n*)		;;
	ttfonts-ko*)		;;
	# broken deps in FC2:
	#abiword*)		;;
	anaconda*)		;;
	emacspeak-*)		;;
	evolution*)		;;
	pvm-gui-*)		;;
	redhat-config-*)	;;
	#setools-*)		;;
	#system-config-bind-*)	;;
	tkinter-*)		;;
	firstboot-*)		;;
	python-tools-*)		;;
	desktop-printing-*)	;;
	gcc-*ssa-*)		;;
	#isdn4k-utils-*)		;;
	xisdnload*)		;;
	iiimf*)			;;
	rusers-server*)		;;
	*xemacs*)		;;
	#xfsprogs*)		;;
	nvi-m17n-canna*)	;;
	kinput2-canna-wnn6*)	;;
	nss_db*)		;;
	php-imap*)		;;
	#isdn4k-utils-vboxgetty-*) ;;
	#net-snmp-perl-*)	;;
	#ruby-tcltk-*)		;;
	#kdeaddons-*)		;;
	#lvm-*)			;;
	# default to include:
	*)			s="$s $i" ;;
    esac
done
rpm -Uvh --nosignature --root=$ROOTDIR $s 2>&1 | tee $ROOTDIR.LOG
cp -a /etc/hosts $ROOTDIR/etc
cp -a /etc/sysconfig/network $ROOTDIR/etc/sysconfig
/usr/sbin/chroot $ROOTDIR /usr/sbin/authconfig --kickstart \
	--nostart --useshadow --enablemd5
cat > $ROOTDIR/etc/sysconfig/i18n <<EOF
LANG="en_US.UTF-8"
SUPPORTED="en_US.UTF-8:en_US:en:de_DE.UTF-8:de_DE:de"
SYSFONT="latarcyrheb-sun16"
EOF
test $HOSTTYPE = i386 -a -d $ROOTDIR/boot/grub && {
cat > $ROOTDIR/boot/grub/device.map <<EOF
# this device map was generated by anaconda
(fd0)     /dev/fd0
(hd0)     /dev/hda
EOF
}
cat > $ROOTDIR/etc/profile.d/local.sh <<EOF
alias l='ls -la'
alias o=less
alias ..='cd ..'
alias ...='cd ../..'
EOF
chmod 755 $ROOTDIR/etc/profile.d/local.sh