1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
| | ;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2020 Edouard Klein <edk@beaver-labs.com>
;;;
;;; 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 gerbil-build-system)
#:use-module ((guix build gnu-build-system) #:prefix gnu:)
#:use-module (guix build utils)
#:use-module (ice-9 match)
#:use-module (ice-9 ftw)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
#:export (%standard-phases
gerbil-build))
;; Gerbil's build system and package management is documented at
;; https://cons.io/guide/package-manager.html
;; https://cons.io/guide/build.html
;; https://cons.io/guide/env-vars.html
;;
;; The compiler is writing its output in the directory
;; pointed to by GERBIL_PATH (or ~/.gerbil by default).
;;
;; Every package is supposed to have a build.ss script
;; whose default action (when called with no argument)
;; is to compile the package.
;;
;; The GERBIL_LOADPATH env variable tells gerbil's runtime
;; where it can find its loadable code.
;;
;; GERBIL_HOME tells gerbil where to find its runtime
;; and standard library
;;
;; This build system therefore just
;; - makes GERBIL_PATH point to the output directory in the store,
;; - makes GERBIL_LOADPATH point to the lib subdir
;; of all the gerbil inputs,
;; - calls ./build.ss,
;; - wrap any executable with GERBIL_LOADPATH set the the lib
;; subdir of all the gerbil inputs plus the lib subdir
;; of the current package's output, and with GERBIL_HOME
;; set to the lib directory of the 'gerbil' input
(define (loadpath inputs)
(string-join (map (match-lambda
((_ . path)
(string-append path "/lib")))
;; Restrict to inputs beginning with "gerbil-".
(filter (match-lambda
((name . _)
(string-prefix? "gerbil-" name)))
inputs))
":"))
(define (gerbil-home inputs)
(assoc-ref inputs "gerbil"))
(define* (install #:key inputs outputs #:allow-other-keys)
"Install a given Gerbil package."
(let ((out (assoc-ref outputs "out"))
(in (loadpath inputs)))
(setenv "GERBIL_PATH" out)
(setenv "GERBIL_LOADPATH" in)
(invoke "./build.ss"))
#t)
(define* (wrap #:key inputs outputs #:allow-other-keys)
"Wrap any executable with a proper GERBIL_LOADPATH and GERBIL_HOME"
(let* ((out (assoc-ref outputs "out"))
(in (loadpath inputs))
(gerbil-loadpath (string-append out "/lib:" in)))
(for-each (cut wrap-program <>
`("GERBIL_LOADPATH" = (,gerbil-loadpath))
`("GERBIL_HOME" = (,(gerbil-home inputs))))
(find-files (string-append out "/bin")))))
(define %standard-phases
(modify-phases gnu:%standard-phases
(delete 'bootstrap)
(delete 'configure) ;not needed
(delete 'build) ;build.ss does both build and install
(delete 'check) ;no standard way of testing
(replace 'install install)
(add-after 'install 'wrap wrap)))
(define* (gerbil-build #:key inputs (phases %standard-phases)
#:allow-other-keys #:rest args)
"Build the given Gerbil package, applying all of PHASES in order."
(apply gnu:gnu-build #:inputs inputs #:phases phases args))
|