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
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
| | ;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2016, 2018 Ricardo Wurmus <rekado@elephly.net>
;;; Copyright © 2019 Björn Höfling <bjoern.hoefling@bjoernhoefling.de>
;;; Copyright © 2020 Hartmut Goebel <h.goebel@crazy-compilers.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 rebar3-build-system)
#:use-module ((guix build gnu-build-system) #:prefix gnu:)
#:use-module ((guix build utils) #:hide (delete))
#:use-module (ice-9 match)
#:use-module (ice-9 ftw)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
#:export (%standard-phases
rebar3-build))
;;
;; Builder-side code of the standard build procedure for Erlang packages using
;; rebar3.
;;
;; TODO: Think about whether bindir ("ebin"), libdir ("priv") and includedir
;; "(include") need to be configurable
(define %erlang-libdir "/lib/erlang/lib")
(define* (erlang-depends #:key inputs #:allow-other-keys)
(define input-directories
(match inputs
(((_ . dir) ...)
dir)))
(mkdir-p "_checkouts")
(for-each
(lambda (input-dir)
(let ((elibdir (string-append input-dir %erlang-libdir)))
(when (directory-exists? elibdir)
(for-each
(lambda (dirname)
(symlink (string-append elibdir "/" dirname)
(string-append "_checkouts/" dirname)))
(list-directories elibdir)))))
input-directories)
#t)
(define* (unpack #:key source #:allow-other-keys)
"Unpack SOURCE in the working directory, and change directory within the
source. When SOURCE is a directory, copy it in a sub-directory of the current
working directory."
;; archives from hexpm typicalls do not contain a directory level
;; TODO: Check if archive contains a directory level
(mkdir "source")
(chdir "source")
(if (file-is-directory? source)
(begin
;; Preserve timestamps (set to the Epoch) on the copied tree so that
;; things work deterministically.
(copy-recursively source "."
#:keep-mtime? #t))
(begin
(if (string-suffix? ".zip" source)
(invoke "unzip" source)
(invoke "tar" "xvf" source))))
#t)
(define* (build #:key (make-flags '()) (build-target "compile")
#:allow-other-keys)
(apply invoke `("rebar3" ,build-target ,@make-flags)))
(define* (check #:key target (make-flags '()) (tests? (not target))
(test-target "eunit")
#:allow-other-keys)
(if tests?
(apply invoke `("rebar3" ,test-target ,@make-flags))
(format #t "test suite not run~%"))
#t)
(define (erlang-package? name)
"Check if NAME correspond to the name of an Erlang package."
(string-prefix? "erlang-" name))
(define (package-name-version->erlang-name name+ver)
"Convert the Guix package NAME-VER to the corresponding Erlang name-version
format. Essentially drop the prefix used in Guix and replace dashes by
underscores."
(let* ((name- (package-name->name+version name+ver)))
(string-join
(string-split
(if (erlang-package? name-) ; checks for "erlang-" prefix
(string-drop name- (string-length "erlang-"))
name-)
#\-)
"_")))
(define (list-directories directory)
"Return file names of the sub-directory of DIRECTORY."
(scandir directory
(lambda (file)
(and (not (member file '("." "..")))
(file-is-directory? (string-append directory "/" file))))))
(define* (install #:key name outputs
(pkg-name (package-name-version->erlang-name name))
#:allow-other-keys)
(let* ((out (assoc-ref outputs "out"))
(build-dir "_build/default/lib")
(pkg-dir (string-append out %erlang-libdir "/" pkg-name)))
(for-each
(lambda (pkg)
(for-each
(lambda (dirname)
(let ((src-dir (string-append build-dir "/" pkg "/" dirname))
(dst-dir (string-append pkg-dir "/" dirname)))
(when (file-exists? src-dir)
(copy-recursively src-dir dst-dir #:follow-symlinks? #t))
(false-if-exception
(delete-file (string-append dst-dir "/.gitignore")))))
'("ebin" "include" "priv")))
(list-directories build-dir))
(false-if-exception
(delete-file (string-append pkg-dir "/priv/Run-eunit-loop.expect")))
#t))
(define %standard-phases
(modify-phases gnu:%standard-phases
(replace 'unpack unpack)
(delete 'bootstrap)
(delete 'configure)
(add-before 'build 'erlang-depends erlang-depends)
(replace 'build build)
(replace 'check check)
(replace 'install install)))
(define* (rebar3-build #:key inputs (phases %standard-phases)
#:allow-other-keys #:rest args)
"Build the given Erlang package, applying all of PHASES in order."
(apply gnu:gnu-build #:inputs inputs #:phases phases args))
|