#!/bin/bash
#  Copyright 2010 Nicolás Reynolds

#  ---------- GNU General Public License 3 ----------
                                                                             
#  This file is part of Parabola.                                          
                                                                             
#  Parabola is free software: you can redistribute it and/or modify        
#  it under the terms of the GNU General Public License as published by    
#  the Free Software Foundation, either version 3 of the License, or       
#  (at your option) any later version.                                     
                                                                             
#  Parabola is distributed in the hope that it will be useful,             
#  but WITHOUT ANY WARRANTY; without even the implied warranty of          
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the           
#  GNU General Public License for more details.                            
                                                                             
#  You should have received a copy of the GNU General Public License       
#  along with Parabola.  If not, see <http://www.gnu.org/licenses/>.       

[[ -z "${1}" ]] && {
    echo "This scripts enters into the build chroot."
    echo "Usage: $0 <chroot name>"
    echo "Example: \`$0 root\` enters the 'root' chroot"
    exit 1
}

[[ $UID -ne 0 ]] && {
    echo "This script must be run as root"
    exit 2
}

custom_config=$XDG_CONFIG_HOME/libretools/libretools.conf
if [ -e $custom_config ]; then
    source $custom_config
else
    source /etc/libretools.conf
fi

[[ ! -d $CHROOTDIR/$1/ ]] && {
    echo "There's no $CHROOTDIR/$1"
    exit 3
}

mount -t proc proc $CHROOTDIR/$1/proc/
mount -t sysfs sys $CHROOTDIR/$1/sys/
mount -o bind /dev $CHROOTDIR/$1/dev/

cp -L /etc/resolv.conf $CHROOTDIR/$1/etc/resolv.conf

chroot $CHROOTDIR/$1 /bin/bash

umount $CHROOTDIR/$1/proc/
umount $CHROOTDIR/$1/sys/
umount $CHROOTDIR/$1/dev/

exit 0