#!/bin/bash
#XXX: use bash #!/bin/sh

# ------------------------------------------------------------------------------
# Configurations
# ------------------------------------------------------------------------------
export IMG="$1"
export LC_ALL=POSIX

RETCODE=0

: ${DIST=fc14}

. ./builder_setup >/dev/null
. ./umount.sh >/dev/null

if [ "$VERBOSE" -ge 2 -o "$DEBUG" == "1" ]; then
    set -x
else
    set -e
fi

if ! [ $# -eq 1 ]; then
    echo "usage $0 <img_file_name>"
    exit
fi

if [ "$VERBOSE" == "1" ]; then
    export YUM_OPTS="$YUM_OPTS -q"
fi

# ------------------------------------------------------------------------------
# Prepare for mount
# ------------------------------------------------------------------------------
echo "-> Preparing instalation of $DIST template..."
"$SCRIPTSDIR/00_prepare.sh"

# ------------------------------------------------------------------------------
# Mount image and install core OS
# ------------------------------------------------------------------------------
if [ -f "$IMG" ]; then
    echo "-> Image file already exists, assuming *update*..."
    mount -o loop "$IMG" mnt || exit 1
    export INSTALLDIR="`pwd`/mnt/"
    trap "umount_image ${INSTALLDIR::-1}" EXIT

    # XXX: Temp; just for debugging
    if ! [ -f "$INSTALLDIR/tmp/.prepared_debootstrap" ]; then
        "$SCRIPTSDIR/01_install_core.sh"
    fi
else
    echo "-> Initializing empty image..."
    truncate -s 10G "$IMG" || exit 1

    echo "-> Creating filesystem..."
    mkfs.ext4 -q -F "$IMG" || exit 1

    mkdir -p mnt
    mount -o loop "$IMG" mnt || exit 1

    export INSTALLDIR="`pwd`/mnt/"
    trap "umount_image ${INSTALLDIR::-1}" EXIT

    "$SCRIPTSDIR/01_install_core.sh"
fi

# ------------------------------------------------------------------------------
# Install package groups
# ------------------------------------------------------------------------------
echo "-> Installing package groups..."
"$SCRIPTSDIR/02_install_groups.sh"

# ------------------------------------------------------------------------------
# Cleanup
# ------------------------------------------------------------------------------
trap - EXIT

echo "-> Unmounting prepared_image..."
umount_image "$INSTALLDIR" || :

exit $RETCODE