#!/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

#######################################
# Set locale and configure keyboard layout.
# Globals:
#   TARGET
#   locale_country
#   locale_keyboard_layout
#   locale_keyboard_xkb_keymap
#   locale_language
#   locale_locale
# Arguments:
#   None
# Returns:
#   0: on success
#######################################
setup_locales() {
  do_in_target "${TARGET}" apt-get install -y locales

  ### Give priority to '${locale_locale}' over separately configured variables '{$locale_country}' and '{$locale_language}'.
  ### If 'locale_locale' is not set, build it from 'locale_language' and 'locale_country'.
  if [[ -n "${locale_language:-}" && -n "${locale_country:-}" && -z "${locale_locale:-}" ]]; then
    declare locale_locale="${locale_language}_${locale_country}.UTF-8"
  fi

  ### Generate the specified locale
  do_in_target "${TARGET}" locale-gen "${locale_locale}"

  ### Set the standard locale
  do_in_target "${TARGET}" update-locale LANG="${locale_locale}" LC_ALL="${locale_locale}"

  ### Set the keyboard layout for the system (for consoles)
  sed -i "s/^KEYMAP=.*/KEYMAP=${locale_keyboard_layout}/" "${TARGET}/etc/default/keyboard"
  do_log "info" "false" "Keyboard layout updated: 'KEYMAP=${locale_keyboard_layout}' -> '${TARGET}/etc/default/keyboard'."

  ### Set the X11 keyboard layout (for graphical environments)
  do_in_target "${TARGET}" localectl set-x11-keymap "${locale_keyboard_xkb_keymap}"

  return 0
}
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