100 lines
3.8 KiB
Scheme
100 lines
3.8 KiB
Scheme
;;; 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)
|
||
(srfi srfi-1)
|
||
(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))))
|
||
|
||
(define* (parallel-job-count #:optional (flags (getenv "MAKEFLAGS")))
|
||
"Return the number of parallel jobs as determined by FLAGS, the flags passed
|
||
to 'make'."
|
||
(match flags
|
||
(#f (current-processor-count))
|
||
(flags
|
||
(let ((initial-flags (string-tokenize flags)))
|
||
(let loop ((flags initial-flags))
|
||
(match flags
|
||
(()
|
||
;; Note: GNU make prior to version 4.2 would hide "-j" flags from
|
||
;; $MAKEFLAGS. Thus, check for a "--jobserver" flag here and
|
||
;; assume we're using all cores if specified.
|
||
(if (any (lambda (flag)
|
||
(string-prefix? "--jobserver" flag))
|
||
initial-flags)
|
||
(current-processor-count) ;GNU make < 4.2
|
||
1)) ;sequential make
|
||
(("-j" (= string->number count) _ ...)
|
||
(if (integer? count)
|
||
count
|
||
(current-processor-count)))
|
||
((head tail ...)
|
||
(if (string-prefix? "-j" head)
|
||
(match (string-drop head 2)
|
||
(""
|
||
(current-processor-count))
|
||
((= string->number count)
|
||
(if (integer? count)
|
||
count
|
||
(current-processor-count))))
|
||
(loop tail)))))))))
|
||
|
||
;; 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)
|
||
#:workers (parallel-job-count)
|
||
#: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)))))))
|