#!/bin/sh

PROG=$(basename $0)
DIST=testing
ARCH=amd64
MIRROR=http://ftp2.fr.debian.org/debian

if [ $EUID -ne 0 ]; then
   echo $PROG "must be run as root" 1>&2
   exit 1
fi

CHROOT=/home/davidcl/work/tools/debian-chroot
SCI=/home/davidcl/work/branches/master/scilab
SCI_REVIEW=/home/davidcl/work/branches/master-review/scilab
RELEASES=/home/davidcl/work/releases

# locale might be set but not supported by the chroot
unset LANG LC_CTYPE LC_MESSAGES LC_ALL

# setup is not existing
if [ ! -d $CHROOT ]; then
    echo -e "\033[1m==== Debootstrap to $DIST $ARCH ====\033[0m"
    debootstrap --no-check-certificate --arch=$ARCH $DIST $CHROOT $MIRROR || {
        exit 1;
    }
fi

# mount SCI first then chroot into
echo -e "\033[1m==== Mount system dirs ====\033[0m"
mount proc $CHROOT/proc -t proc
mount sysfs $CHROOT/sys -t sysfs
mount -o bind /tmp $CHROOT/tmp
echo -e "\033[1m==== Mount local dirs ====\033[0m"
echo "mount $SCI as /scilab"
[ ! -d $CHROOT/scilab ] && mkdir $CHROOT/scilab
mount -o bind $SCI $CHROOT/scilab
echo "mount $SCI_REVIEW as /scilab-review"
[ ! -d $CHROOT/scilab-review ] && mkdir $CHROOT/scilab-review
mount -o bind $SCI_REVIEW $CHROOT/scilab-review
echo "mount $RELEASES as /releases"
[ ! -d $CHROOT/releases ] && mkdir $CHROOT/releases
mount -o bind $RELEASES $CHROOT/releases

# Update the chroot first then subshell into
echo -e "\033[1m==== update chroot ====\033[0m"
xauth list > /tmp/X
echo "deb $MIRROR unstable main contrib non-free" >$CHROOT/etc/apt/sources.list
echo "deb $MIRROR testing main contrib non-free" >>$CHROOT/etc/apt/sources.list
echo "deb $MIRROR stable main contrib non-free" >>$CHROOT/etc/apt/sources.list

chroot $CHROOT /bin/bash <<'EOF'
# add a default user named build if not existing
if [ -z $(id -u build 2>/dev/null) ]; then
  useradd -u 1000 -m build -s /bin/bash
fi

apt-get install -y --force-yes automake=1:1.14.1-* autoconf=2.69-* gettext=0.18.3.* libtool=2.4.2-*
EOF

# then chroot into
echo -e "\033[1m==== chroot to $DIST $ARCH ====\033[0m"
chroot $CHROOT su - build

# At the end umount previously mounted dirs
umount -f $CHROOT/proc
umount -f $CHROOT/sys
umount -f $CHROOT/tmp
umount -f $CHROOT/scilab
umount -f $CHROOT/scilab-review
umount -f $CHROOT/releases