#!/bin/bash
# SPDX-Version: 3.0
# SPDX-CreationInfo: 2025-06-17; WEIDNER, Marc S.; <msw@coresecret.dev>
# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.installer.git
# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
# SPDX-FileType: SOURCE
# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
# SPDX-PackageName: CISS.debian.installer
# SPDX-Security-Contact: security@coresecret.eu

guard_sourcing

#######################################
# Basic '/etc/fstab' checks inside chroot.
# Globals:
#   TARGET
# Arguments:
#   None
# Returns:
#   0: on success
#######################################
check_fstab() {
  ### Declare Arrays, HashMaps, and Variables.
  declare -r  var_logfile="/root/.ciss/cdi/log/4205_check_fstab.log"

  chroot_logger "${TARGET}${var_logfile}"

  # shellcheck disable=SC2016 # an Internal script is only evaluated in chroot.
  chroot_script "${TARGET}" '
    export INITRD=No

    if [[ ! -s /etc/fstab ]]; then
      echo "ERROR: /etc/fstab missing or empty" >> '"${var_logfile}"'
      exit 1
    fi

    {
      findmnt --verify --verbose --tab-file /etc/fstab
      ec=$?

      echo "--- mount -fav -n (dry-run) ---"
      mount -fav -n || true

      echo "ExitCode(findmnt): ${ec}"
      exit "${ec}"
    } 2>&1 | tee -a '"${var_logfile}"'
  '

  guard_dir && return 0
}
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