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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2016 Taylan Ulrich Bayırlı/Kammer <taylanbayirli@gmail.com>
;;; Copyright © 2016, 2017 Ludovic Courtès <ludo@gnu.org>
;;;
;;; 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/>.
(use-modules (ice-9 match)
(ice-9 threads)
(guix build compile)
(guix build utils))
(define host (getenv "host"))
(define srcdir (getenv "srcdir"))
(define (relative-file file)
(if (string-prefix? (string-append srcdir "/") file)
(string-drop file (+ 1 (string-length srcdir)))
file))
(define (file-mtime<? f1 f2)
(< (stat:mtime (stat f1))
(stat:mtime (stat f2))))
(define (scm->go file)
(let* ((relative (relative-file file))
(without-extension (string-drop-right relative 4)))
(string-append without-extension ".go")))
(define (file-needs-compilation? file)
(let ((go (scm->go file)))
(or (not (file-exists? go))
(file-mtime<? go file))))
;; Install a SIGINT handler to give unwind handlers in 'compile-file' an
;; opportunity to run upon SIGINT and to remove temporary output files.
(sigaction SIGINT
(lambda args
(exit 1)))
(match (command-line)
((_ . files)
(compile-files srcdir (getcwd)
(filter file-needs-compilation? files)
#:host host
#:report-load (lambda (file total completed)
(when file
(format #t " LOAD ~a~%" file)))
#:report-compilation (lambda (file total completed)
(when file
(format #t " GUILEC ~a~%"
(scm->go file)))))))
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