cmdline.sh

#!/usr/bin/env bash

# SPDX-FileCopyrightText: (c) 2016 ale5000
# SPDX-License-Identifier: GPL-3.0-or-later
# shellcheck enable=all

if test "${A5K_FUNCTIONS_INCLUDED:-false}" = 'false'; then
  main()
  {
    local _newline _main_dir

    # Execute only if the first initialization has not already been done
    if test -z "${MAIN_DIR-}" || test -z "${USER_HOME-}"; then

      if test -d '/usr/bin'; then PATH="/usr/bin:${PATH:-/usr/bin}"; fi

      if test -z "${MAIN_DIR-}"; then
        # shellcheck disable=SC3028 # Ignore: In POSIX sh, BASH_SOURCE is undefined.
        if test -n "${BASH_SOURCE-}" && MAIN_DIR="$(dirname "${BASH_SOURCE:?}")" && MAIN_DIR="$(realpath "${MAIN_DIR:?}")"; then
          export MAIN_DIR
        else
          unset MAIN_DIR
        fi
      fi

      if test -n "${MAIN_DIR-}" && test -z "${USER_HOME-}"; then
        if test "${TERM_PROGRAM-}" = 'mintty'; then unset TERM_PROGRAM; fi
        export USER_HOME="${HOME-}"
        export HOME="${MAIN_DIR:?}"
      fi

    fi

    unset STARTED_FROM_BATCH_FILE
    unset IS_PATH_INITIALIZED
    unset __QUOTED_PARAMS

    export DO_INIT_CMDLINE=1
    if test -n "${MAIN_DIR-}"; then _main_dir="${MAIN_DIR:?}"; else _main_dir='.'; fi

    if test "${PLATFORM-}" = 'win' && test "${IS_BUSYBOX-}" = 'true'; then
      exec ash -s -c ". '${_main_dir:?}/includes/common.sh' || exit \${?}" 'ash' "${@}"
    else
      if test "${#}" -gt 0; then
        _newline='
'
        case "${*}" in
          *"${_newline:?}"*)
            printf 'WARNING: Newline character found, parameters dropped\n'
            ;;
          *)
            __QUOTED_PARAMS="$(printf '%s\n' "${@}")"
            export __QUOTED_PARAMS
            ;;
        esac
      fi

      exec "${BASH:-${SHELL:-bash}}" --init-file "${_main_dir:?}/includes/common.sh"
    fi
  }

  if test "${#}" -gt 0; then
    main "${@}"
  else
    main
  fi
fi