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
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
|
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2022 Philip McGrath <philip@philipmcgrath.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-system elm)
#:use-module (guix store)
#:use-module (guix utils)
#:use-module (guix packages)
#:use-module (guix gexp)
#:use-module (guix monads)
#:use-module (guix search-paths)
#:use-module (guix git-download)
#:use-module (guix build-system)
#:use-module (guix build-system gnu)
#:use-module (ice-9 match)
#:use-module (srfi srfi-1)
#:export (elm->package-name
guix-package->elm-name
infer-elm-package-name
elm-package-origin
%elm-build-system-modules
%elm-default-modules
elm-build
elm-build-system))
(define (elm->package-name name)
"Given the NAME of an Elm package, return a Guix-style package name."
(let ((converted
(string-join (string-split (string-downcase name) #\/) "-")))
(if (string-prefix? "elm-" converted)
converted
(string-append "elm-" converted))))
(define (guix-package->elm-name package)
"Given an Elm PACKAGE, return the possibly-inferred upstream name, or #f the
upstream name is not specified and can't be inferred."
(or (assoc-ref (package-properties package) 'upstream-name)
(infer-elm-package-name (package-name package))))
(define (infer-elm-package-name guix-name)
"Given the GUIX-NAME of an Elm package, return the inferred upstream name,
or #f if it can't be inferred. If the result is not #f, supplying it to
'elm->package-name' would produce GUIX-NAME.
See also 'guix-package->elm-name', which respects the 'upstream-name'
property."
(define (parts-join part0 parts)
(string-join (cons part0 parts) "-"))
(match (string-split guix-name #\-)
(("elm" "explorations" part0 parts ...)
(string-append "elm-explorations/"
(parts-join part0 parts)))
(("elm" owner part0 parts ...)
(string-append owner "/" (parts-join part0 parts)))
(("elm" repo)
(string-append "elm/" repo))
(_
#f)))
(define (elm-package-origin elm-name version hash)
"Return an origin for the Elm package with upstream name ELM-NAME at the
given VERSION with sha256 checksum HASH."
;; elm requires this very specific repository structure and tagging regime
(origin
(method git-fetch)
(uri (git-reference
(url (string-append "https://github.com/" elm-name))
(commit version)))
(file-name (git-file-name (elm->package-name elm-name) version))
(sha256 hash)))
(define %elm-build-system-modules
;; Build-side modules imported by default.
`((guix build elm-build-system)
(guix build json)
(guix build union)
,@%gnu-build-system-modules))
(define %elm-default-modules
;; Modules in scope in the build-side environment.
'((guix build elm-build-system)
(guix build utils)
(guix build json)
(guix build union)))
(define (default-elm)
"Return the default Elm package for builds."
;; Lazily resolve the binding to avoid a circular dependency.
(let ((elm (resolve-interface '(gnu packages elm))))
(module-ref elm 'elm-sans-reactor)))
(define (default-elm-core)
"Return the default elm-core package."
;; Lazily resolve the binding to avoid a circular dependency.
(let ((elm (resolve-interface '(gnu packages elm))))
(module-ref elm 'elm-core)))
(define (default-elm-json)
"Return the default elm-json package."
;; Lazily resolve the binding to avoid a circular dependency.
(let ((elm (resolve-interface '(gnu packages elm))))
(module-ref elm 'elm-json)))
(define* (lower name
#:key source inputs native-inputs outputs system target
(implicit-elm-package-inputs? #t)
(elm (default-elm))
#:allow-other-keys
#:rest arguments)
"Return a bag for NAME."
(define private-keywords
'(#:target #:implicit-elm-package-inputs? #:elm #:inputs #:native-inputs))
(cond
(target
;; Cross-compilation is not yet supported. It should be easy, though,
;; since the build products are all platform-independent.
#f)
(else
(bag
(name name)
(system system)
(host-inputs
`(,@(if source
`(("source" ,source))
'())
,@inputs
("elm" ,elm)
,@(cond
(implicit-elm-package-inputs?
;; These are needed for elm-build-system even if not actually
;; needed by the package being built. But "elm/json" is often
;; present in practice, and "elm/core" always is: only add the
;; default packages if no suitable inputs have been given
;; explicitly.
(filter-map
(match-lambda
((name get-default)
(cond
((find (match-lambda
((_ pkg . _)
(equal? name (guix-package->elm-name pkg))))
inputs)
#f)
(else
`(,name ,(get-default))))))
`(("elm/core" ,default-elm-core)
("elm/json" ,default-elm-json))))
(else
'()))
;; TODO: probably don't need most of (standard-packages)
,@(standard-packages)))
(outputs outputs)
(build elm-build)
(arguments (strip-keyword-arguments private-keywords arguments))))))
(define* (elm-build name inputs
#:key
source
(tests? #t)
(phases '%standard-phases)
(outputs '("out"))
(search-paths '())
(system (%current-system))
(guile #f)
(imported-modules %elm-build-system-modules)
(modules %elm-default-modules))
"Build SOURCE using ELM."
(define builder
(with-imported-modules imported-modules
#~(begin
(use-modules #$@(sexp->gexp modules))
(elm-build #:name #$name
#:source #+source
#:system #$system
#:tests? #$tests?
#:phases #$phases
#:outputs #$(outputs->gexp outputs)
#:search-paths '#$(sexp->gexp
(map search-path-specification->sexp
search-paths))
#:inputs #$(input-tuples->gexp inputs)))))
(mlet %store-monad ((guile (package->derivation (or guile (default-guile))
system #:graft? #f)))
(gexp->derivation name builder
#:system system
#:guile-for-build guile)))
(define elm-build-system
(build-system
(name 'elm)
(description "The Elm build system")
(lower lower)))
|
