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1 | ;;; GNU Guix --- Functional package management for GNU |
2 | ;;; Copyright © 2016 Taylan Ulrich Bayırlı/Kammer <taylanbayirli@gmail.com> | |
ae196fa3 | 3 | ;;; Copyright © 2016, 2017 Ludovic Courtès <ludo@gnu.org> |
de6af327 TUBK |
4 | ;;; |
5 | ;;; This file is part of GNU Guix. | |
6 | ;;; | |
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. | |
11 | ;;; | |
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. | |
16 | ;;; | |
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/>. | |
19 | ||
2890ad33 | 20 | (use-modules (ice-9 match) |
de6af327 | 21 | (ice-9 threads) |
3a9976bf | 22 | (srfi srfi-1) |
2890ad33 | 23 | (guix build compile) |
de6af327 TUBK |
24 | (guix build utils)) |
25 | ||
de6af327 | 26 | (define host (getenv "host")) |
de6af327 TUBK |
27 | (define srcdir (getenv "srcdir")) |
28 | ||
29 | (define (relative-file file) | |
30 | (if (string-prefix? (string-append srcdir "/") file) | |
31 | (string-drop file (+ 1 (string-length srcdir))) | |
32 | file)) | |
33 | ||
34 | (define (file-mtime<? f1 f2) | |
35 | (< (stat:mtime (stat f1)) | |
36 | (stat:mtime (stat f2)))) | |
37 | ||
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"))) | |
42 | ||
43 | (define (file-needs-compilation? file) | |
44 | (let ((go (scm->go file))) | |
45 | (or (not (file-exists? go)) | |
46 | (file-mtime<? go file)))) | |
47 | ||
3a9976bf LC |
48 | (define* (parallel-job-count #:optional (flags (getenv "MAKEFLAGS"))) |
49 | "Return the number of parallel jobs as determined by FLAGS, the flags passed | |
50 | to 'make'." | |
51 | (match flags | |
52 | (#f (current-processor-count)) | |
53 | (flags | |
54 | (let ((initial-flags (string-tokenize flags))) | |
55 | (let loop ((flags initial-flags)) | |
56 | (match flags | |
57 | (() | |
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)) | |
63 | initial-flags) | |
64 | (current-processor-count) ;GNU make < 4.2 | |
65 | 1)) ;sequential make | |
66 | (("-j" (= string->number count) _ ...) | |
67 | (if (integer? count) | |
68 | count | |
69 | (current-processor-count))) | |
70 | ((head tail ...) | |
71 | (if (string-prefix? "-j" head) | |
72 | (match (string-drop head 2) | |
73 | ("" | |
74 | (current-processor-count)) | |
75 | ((= string->number count) | |
76 | (if (integer? count) | |
77 | count | |
78 | (current-processor-count)))) | |
79 | (loop tail))))))))) | |
80 | ||
402bb3b9 LC |
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. | |
83 | (sigaction SIGINT | |
84 | (lambda args | |
85 | (exit 1))) | |
86 | ||
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87 | (match (command-line) |
88 | ((_ . files) | |
2890ad33 LC |
89 | (compile-files srcdir (getcwd) |
90 | (filter file-needs-compilation? files) | |
3a9976bf | 91 | #:workers (parallel-job-count) |
2890ad33 LC |
92 | #:host host |
93 | #:report-load (lambda (file total completed) | |
94 | (when file | |
c397dfca LC |
95 | (format #t " LOAD ~a~%" file) |
96 | (force-output))) | |
2890ad33 LC |
97 | #:report-compilation (lambda (file total completed) |
98 | (when file | |
99 | (format #t " GUILEC ~a~%" | |
c397dfca LC |
100 | (scm->go file)) |
101 | (force-output)))))) |