#!/bin/sh

if test `id -u` -ne 0
then
    echo "$0 must be run as root."
    return
fi

ROOT=test_environment
FRESH=clean_environment
if test -e "$FRESH"
then
    echo "Clean debian environment found at $FRESH. Good."
else
    echo "No debian environment found at $FRESH, downloading with debootstrap."
    mkdir -p $FRESH
    ./get_debootstrap --arch i386 sid "$FRESH" http://deb.debian.org/debian/
fi

cleanup_mount() {
    if mountpoint "$1" > /dev/null
    then
        echo "Unmounting $1"
        umount "$1"
    fi
}

if test -e "$ROOT"
then
    echo "Existing installation found at $ROOT, removing."
    ./destroy_environment
fi

echo "Copying $FRESH to $ROOT."
cp -r "$FRESH" "$ROOT"

echo "Initializing $ROOT."
mkdir -p "$ROOT/proc"
mount proc $ROOT/proc -t proc
mkdir -p "$ROOT/sys"
mount sysfs $ROOT/sys -t sysfs