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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2021 Maxime Devos <maximedevos@telenet.be>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix 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 General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (guix build meson-configuration)
#:use-module (ice-9 match)
#:export (write-section-header write-assignment write-assignments))
;; Commentary:
;;
;; Utilities for generating a ‘Cross build definition file’ for
;; the Meson build system. Configuration values are currently
;; never escaped. In practice this is unlikely to be a problem
;; in the build environment.
;;
;; Code:
(define (write-section-header port section-name)
"Write a section header for a section named SECTION-NAME to PORT."
(format port "[~a]~%" section-name))
(define (write-assignment port key value)
"Write an assignment of VALUE to KEY to PORT.
VALUE must be a string (without any special characters such as quotes),
a boolean or an integer. Lists are currently not supported"
(match value
((? string?)
(format port "~a = '~a'~%" key value))
((? integer?)
(format port "~a = ~a~%" key value))
(#t
(format port "~a = true~%" key))
(#f
(format port "~a = false~%" key))))
(define* (write-assignments port alist)
"Write the assignments in ALIST, an association list, to PORT."
(for-each (match-lambda
((key . value)
(write-assignment port key value)))
alist))
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