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
151
152
153
154
155
156
157
| | ;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2015 David Thompson <davet@gnu.org>
;;; Copyright © 2015 Pjotr Prins <pjotr.public01@thebird.nl>
;;; Copyright © 2015 Ben Woodcroft <donttrustben@gmail.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 ruby-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 popen)
#:use-module (ice-9 regex)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
#:export (%standard-phases
ruby-build
gem-home))
;; Commentary:
;;
;; Builder-side code of the standard Ruby package build procedure.
;;
;; Code:
(define (first-matching-file pattern)
"Return the first file name that matches PATTERN in the current working
directory."
(match (find-files "." pattern)
((file-name . _) file-name)
(() (error "No files matching pattern: " pattern))))
(define gnu:unpack (assq-ref gnu:%standard-phases 'unpack))
(define (gem-archive? file-name)
(string-match "^.*\\.gem$" file-name))
(define* (unpack #:key source #:allow-other-keys)
"Unpack the gem SOURCE and enter the resulting directory."
(if (gem-archive? source)
(and (zero? (system* "gem" "unpack" source))
;; The unpacked gem directory is named the same as the archive,
;; sans the ".gem" extension. It is renamed to simply "gem" in an
;; effort to keep file names shorter to avoid UNIX-domain socket
;; file names and shebangs that exceed the system's fixed maximum
;; length when running test suites.
(let ((dir (match:substring (string-match "^(.*)\\.gem$"
(basename source))
1)))
(rename-file dir "gem")
(chdir "gem")
#t))
;; Use GNU unpack strategy for things that aren't gem archives.
(gnu:unpack #:source source)))
(define (first-gemspec)
(first-matching-file "\\.gemspec$"))
(define* (extract-gemspec #:key source #:allow-other-keys)
"Remove the original gemspec, if present, and replace it with a new one.
This avoids issues with upstream gemspecs requiring tools such as git to
generate the files list."
(when (gem-archive? source)
(let ((gemspec (or (false-if-exception (first-gemspec))
;; Make new gemspec if one wasn't shipped.
".gemspec")))
(when (file-exists? gemspec) (delete-file gemspec))
;; Extract gemspec from source gem.
(let ((pipe (open-pipe* OPEN_READ "gem" "spec" "--ruby" source)))
(dynamic-wind
(const #t)
(lambda ()
(call-with-output-file gemspec
(lambda (out)
;; 'gem spec' writes to stdout, but 'gem build' only reads
;; gemspecs from a file, so we redirect the output to a file.
(while (not (eof-object? (peek-char pipe)))
(write-char (read-char pipe) out))))
#t)
(lambda ()
(close-pipe pipe)))))))
(define* (build #:key source #:allow-other-keys)
"Build a new gem using the gemspec from the SOURCE gem."
;; Build a new gem from the current working directory. This also allows any
;; dynamic patching done in previous phases to be present in the installed
;; gem.
(zero? (system* "gem" "build" (first-gemspec))))
(define* (check #:key tests? test-target #:allow-other-keys)
"Run the gem's test suite rake task TEST-TARGET. Skip the tests if TESTS?
is #f."
(if tests?
(zero? (system* "rake" test-target))
#t))
(define* (install #:key inputs outputs (gem-flags '())
#:allow-other-keys)
"Install the gem archive SOURCE to the output store item. Additional
GEM-FLAGS are passed to the 'gem' invokation, if present."
(let* ((ruby-version
(match:substring (string-match "ruby-(.*)\\.[0-9]$"
(assoc-ref inputs "ruby"))
1))
(out (assoc-ref outputs "out"))
(gem-home (string-append out "/lib/ruby/gems/" ruby-version ".0"))
(gem-name (first-matching-file "\\.gem$")))
(setenv "GEM_HOME" gem-home)
(mkdir-p gem-home)
(and (apply system* "gem" "install" gem-name
"--local" "--ignore-dependencies"
;; Executables should go into /bin, not /lib/ruby/gems.
"--bindir" (string-append out "/bin")
gem-flags)
;; Remove the cached gem file as this is unnecessary and contains
;; timestamped files rendering builds not reproducible.
(begin (delete-file (string-append gem-home "/cache/" gem-name))
#t))))
(define %standard-phases
(modify-phases gnu:%standard-phases
(delete 'configure)
(add-before 'build 'extract-gemspec extract-gemspec)
(replace 'build build)
(replace 'unpack unpack)
(replace 'install install)
(replace 'check check)))
(define* (ruby-build #:key inputs (phases %standard-phases)
#:allow-other-keys #:rest args)
(apply gnu:gnu-build #:inputs inputs #:phases phases args))
(define (gem-home store-path ruby-version)
"Return a string to the gem home directory in the store given a STORE-PATH
and the RUBY-VERSION used to build that ruby package"
(string-append
store-path
"/lib/ruby/gems/"
(regexp-substitute #f
(string-match "^[0-9]+\\.[0-9]+" ruby-version)
0 ".0")))
|