#!/usr/bin/env bash
# -*- coding: utf-8 -*-
# region imports
source '/usr/lib/rebash/core.sh'
core.import exceptions
core.import logging
type emergency_shell >/dev/null 2>&1 || source /lib/dracut-lib.sh
# endregion
exceptions.try
{
logging.set_commands_level debug
logging.set_level debug
[[ "$SLX_LOG_FILE_PATH" == "" ]] && SLX_LOG_FILE_PATH=/var/log/openslx
logging.set_log_file "$SLX_LOG_FILE_PATH"

# Needed to be able to go back to dracut at system shutdown.
temporary_directory_path="$(mktemp --directory)"
mount --options bind / "$temporary_directory_path"
cp --recursive --no-target-directory "$temporary_directory_path" /run/initramfs
umount "$temporary_directory_path"
rm --dir "$temporary_directory_path"
}
exceptions.catch
{
    logging.warn "Failed to copy initramfs to /run/initramfs, shutdown hooks" \
        "will not work."
}

exceptions.try
{
# Dracut may not be installed on the new root. Thus copy all services over.
dracut_mount_unit_path="$(systemctl show -p FragmentPath dracut-mount.service \
	| cut -c 14-)"
systemd_system_unit_path="${dracut_mount_unit_path%/*}"
new_systemd_system_unit_path="${NEWROOT}/lib/systemd/system"

mkdir --parents "$new_systemd_system_unit_path/initrd.target.wants"
for file in \
    dracut-cmdline.service \
    dracut-initqueue.service \
    dracut-mount.service \
    dracut-pre-mount.service \
    dracut-pre-pivot.service \
    dracut-pre-trigger.service \
    dracut-pre-udev.service
do
    cp "${systemd_system_unit_path}/${file}" \
        "${new_systemd_system_unit_path}/${file}"
    # "ln" returns an error if the link already exists.
    source_path="../${file}"
    target_path="${new_systemd_system_unit_path}/initrd.target.wants/${file}"
    ln --symbolic "$source_path" "$targetPath" &>/dev/null || \
    logging.warn "Failed to link \"$source_path\" to \"$target_path\"."
done
}
exceptions.catch
{
    logging.error "$exceptions_last_traceback"
    emergency_shell "error in ${BASH_SOURCE[0]}"
}

# region vim modline

# vim: set tabstop=4 shiftwidth=4 expandtab:
# vim: foldmethod=marker foldmarker=region,endregion:

# endregion