autodist/autoport-chroot

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#!/bin/bash
#
# autoport-chroot
# (c) 2012-2013 by Silvan Calarco <silvan.calarco@mambasoft.it>
#
. /etc/sysconfig/autoport
CHROOT_TARGET=$1
shift
CHROOT_COMMAND=$@
function usage() {
echo "\
$0
"$"Copyright (C) 2012 Silvan Calarco <silvan.calarco@mambasoft.it>""
"$"Released under the terms of the GNU GPL v3 license"
echo "
"$"Enters autoport chroot environment.""
"$"Usage"":
$me chroot_target [command [args..]]
"
}
[ "$CHROOT_TARGET" ] || {
usage
exit 1
}
[ "`uname -m`" = "x86_64" ] && HOST_IS_X86_64=1
for i in `seq 0 ${#AUTOPORT_ARCH[*]}`; do
[ "${AUTOPORT_CHROOT[$i]}" = "$CHROOT_TARGET" ] || continue
if [ "$HOST_IS_X86_64" -a "${AUTOPORT_ARCH[$i]}" != "x86_64" ]; then
CMD_PREFIX=linux32
else
CMD_PREFIX=
fi
if [ "$CHROOT_COMMAND" ]; then
$CMD_PREFIX /usr/sbin/chroot /var/autoport/${AUTOPORT_CHROOT[$i]} su -l $SU_APPEND ${AUTOPORT_CHROOT_USER[$i]} -c "${CHROOT_COMMAND}"
else
echo "Entering ${AUTOPORT_CHROOT[$i]} autoport chroot environment"
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hostname=`hostname`
grep $hostname /var/autoport/${AUTOPORT_CHROOT[$i]}/etc/hosts >/dev/null || {
sed -i "s|\(^127.0.0.1[[:space:]]*\)|\1$hostname |" /var/autoport/${AUTOPORT_CHROOT[$i]}/etc/hosts
}
[ -e /var/autoport/${AUTOPORT_CHROOT[$i]}/etc/profile.d/autoport.sh ] || {
echo "PS1='[\u@${AUTOPORT_CHROOT[$i]} \W]\$ '" > /var/autoport/${AUTOPORT_CHROOT[$i]}/etc/profile.d/autoport.sh
}
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$CMD_PREFIX /usr/sbin/chroot /var/autoport/${AUTOPORT_CHROOT[$i]} su -l $SU_APPEND ${AUTOPORT_CHROOT_USER[$i]}
fi
exit 0
done
echo "$CHROOT_TARGET: undefined chroot target"
exit 1