#! /usr/bin/env -S guile --no-auto-compile
!#

;;; kolam --- GraphQL implementation
;;; Copyright © 2022 Arun Isaac <arunisaac@systemreboot.net>
;;;
;;; This file is part of kolam.
;;;
;;; kolam is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU Affero General Public License as
;;; published by the Free Software Foundation; either version 3 of the
;;; License, or (at your option) any later version.
;;;
;;; kolam is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
;;; Affero General Public License for more details.
;;;
;;; You should have received a copy of the GNU Affero General Public
;;; License along with kolam.  If not, see
;;; <http://www.gnu.org/licenses/>.

(use-modules (srfi srfi-28))

(define (check-for-guile-3.0)
  (display "checking for guile 3.0... ")
  (if (string=? (effective-version) "3.0")
      (display (format "yes~%"))
      (begin
        (display (format "no~%error: Guile 3.0 not found~%"))
        (exit #f))))

(define (check-for-module module)
  (display (format "checking for module ~a... " module))
  (if (resolve-module module)
      (display (format "yes~%"))
      (begin
        (display (format "no~%error: no ~a found~%"))
        (exit #f))))

(check-for-guile-3.0)
(check-for-module '(json))