#!/bin/bash
# module-setup.sh for Agama self-update
# see https://www.man7.org/linux/man-pages/man7/dracut.modules.7.html

# called by dracut
check() {
  # always include this dracut module in the initramfs
  return 0
}

# called by dracut
depends() {
  echo network
  return 0
}

installkernel() {
  return 0
}

# install hook for dracut
install() {
  # fail if any install command fails (cannot be used globally as this file is sourced by dracut)
  set -e
  # install the hook for processing the boot parameters
  inst_hook cmdline 99 "$moddir/live-self-update-parser.sh"

  # needed by the live-self-update-parser.sh script
  inst_multiple systemd-cat dirname /usr/lib/live-self-update/conf.sh jq

  # install the systemd service and the self-update script to the initramfs
  inst_multiple /etc/systemd/system/live-self-update.service live-self-update

  # needed by the live-self-update script
  inst_multiple grep tail sed

  # include the self-update configuration if present
  if [ -d /etc/live-self-update ]; then
    . /usr/lib/live-self-update/conf.sh

    if [ -f "$CONFIG_DEFAULT_REG_SERVER_FILE" ]; then
      inst_simple "$CONFIG_DEFAULT_REG_SERVER_FILE"
    fi

    if [ -f "$CONFIG_FALLBACK_FILE" ]; then
      inst_simple "$CONFIG_FALLBACK_FILE"
    fi
  fi

  # enable the self-update service in the initramfs
  $SYSTEMCTL -q --root "$initdir" enable live-self-update.service
  set +e
}