1 ;;; GNU Guix --- Functional package management for GNU
2 ;;; Copyright © 2016 Taylan Ulrich Bayırlı/Kammer <taylanbayirli@gmail.com>
3 ;;; Copyright © 2016, 2017 Ludovic Courtès <ludo@gnu.org>
5 ;;; This file is part of GNU Guix.
7 ;;; GNU Guix is free software; you can redistribute it and/or modify it
8 ;;; under the terms of the GNU General Public License as published by
9 ;;; the Free Software Foundation; either version 3 of the License, or (at
10 ;;; your option) any later version.
12 ;;; GNU Guix is distributed in the hope that it will be useful, but
13 ;;; WITHOUT ANY WARRANTY; without even the implied warranty of
14 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 ;;; GNU General Public License for more details.
17 ;;; You should have received a copy of the GNU General Public License
18 ;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
20 (use-modules (ice-9 match)
26 (define host (getenv "host"))
27 (define srcdir (getenv "srcdir"))
29 (define (relative-file file)
30 (if (string-prefix? (string-append srcdir "/") file)
31 (string-drop file (+ 1 (string-length srcdir)))
34 (define (file-mtime<? f1 f2)
35 (< (stat:mtime (stat f1))
36 (stat:mtime (stat f2))))
38 (define (scm->go file)
39 (let* ((relative (relative-file file))
40 (without-extension (string-drop-right relative 4)))
41 (string-append without-extension ".go")))
43 (define (file-needs-compilation? file)
44 (let ((go (scm->go file)))
45 (or (not (file-exists? go))
46 (file-mtime<? go file))))
48 (define* (parallel-job-count #:optional (flags (getenv "MAKEFLAGS")))
49 "Return the number of parallel jobs as determined by FLAGS, the flags passed
52 (#f (current-processor-count))
54 (let ((initial-flags (string-tokenize flags)))
55 (let loop ((flags initial-flags))
58 ;; Note: GNU make prior to version 4.2 would hide "-j" flags from
59 ;; $MAKEFLAGS. Thus, check for a "--jobserver" flag here and
60 ;; assume we're using all cores if specified.
61 (if (any (lambda (flag)
62 (string-prefix? "--jobserver" flag))
64 (current-processor-count) ;GNU make < 4.2
66 (("-j" (= string->number count) _ ...)
69 (current-processor-count)))
71 (if (string-prefix? "-j" head)
72 (match (string-drop head 2)
74 (current-processor-count))
75 ((= string->number count)
78 (current-processor-count))))
81 ;; Install a SIGINT handler to give unwind handlers in 'compile-file' an
82 ;; opportunity to run upon SIGINT and to remove temporary output files.
89 (compile-files srcdir (getcwd)
90 (filter file-needs-compilation? files)
91 #:workers (parallel-job-count)
93 #:report-load (lambda (file total completed)
95 (format #t " LOAD ~a~%" file)
97 #:report-compilation (lambda (file total completed)
99 (format #t " GUILEC ~a~%"