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
|
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2016 David Craven <david@craven.ch>
;;;
;;; 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 import crate)
#:use-module (guix base32)
#:use-module (guix build-system cargo)
#:use-module ((guix download) #:prefix download:)
#:use-module (gcrypt hash)
#:use-module (guix http-client)
#:use-module (guix import json)
#:use-module (guix import utils)
#:use-module ((guix licenses) #:prefix license:)
#:use-module (guix monads)
#:use-module (guix packages)
#:use-module (guix upstream)
#:use-module (guix utils)
#:use-module (ice-9 match)
#:use-module (ice-9 pretty-print) ; recursive
#:use-module (json)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-2)
#:use-module (srfi srfi-26)
#:export (crate->guix-package
guix-package->crate-name
%crate-updater))
(define (crate-fetch crate-name callback)
"Fetch the metadata for CRATE-NAME from crates.io and call the callback."
(define (crates->inputs crates)
(sort (map (cut assoc-ref <> "crate_id") crates) string-ci<?))
(define (string->license string)
(map spdx-string->license (string-split string #\/)))
(define (crate-kind-predicate kind)
(lambda (dep) (string=? (assoc-ref dep "kind") kind)))
(and-let* ((crate-json (json-fetch (string-append crate-url crate-name)))
(crate (assoc-ref crate-json "crate"))
(name (assoc-ref crate "name"))
(version (assoc-ref crate "max_version"))
(homepage (assoc-ref crate "homepage"))
(repository (assoc-ref crate "repository"))
(synopsis (assoc-ref crate "description"))
(description (assoc-ref crate "description"))
(license (or (and=> (assoc-ref crate "license")
string->license)
'())) ;missing license info
(path (string-append "/" version "/dependencies"))
(deps-json (json-fetch (string-append crate-url name path)))
(deps (vector->list (assoc-ref deps-json "dependencies")))
(dep-crates (filter (crate-kind-predicate "normal") deps))
(dev-dep-crates
(filter (lambda (dep)
(not ((crate-kind-predicate "normal") dep))) deps))
(cargo-inputs (crates->inputs dep-crates))
(cargo-development-inputs (crates->inputs dev-dep-crates))
(home-page (match homepage
(() repository)
(_ homepage))))
(callback #:name name #:version version
#:cargo-inputs cargo-inputs
#:cargo-development-inputs cargo-development-inputs
#:home-page home-page #:synopsis synopsis
#:description description #:license license)))
(define (maybe-cargo-inputs package-names)
(match (package-names->package-inputs package-names)
(()
'())
((package-inputs ...)
`(#:cargo-inputs ,package-inputs))))
(define (maybe-cargo-development-inputs package-names)
(match (package-names->package-inputs package-names)
(()
'())
((package-inputs ...)
`(#:cargo-development-inputs ,package-inputs))))
(define (maybe-arguments arguments)
(match arguments
(()
'())
((args ...)
`((arguments (,'quasiquote ,args))))))
(define* (make-crate-sexp #:key name version cargo-inputs cargo-development-inputs
home-page synopsis description license
#:allow-other-keys)
"Return the `package' s-expression for a rust package with the given NAME,
VERSION, CARGO-INPUTS, CARGO-DEVELOPMENT-INPUTS, HOME-PAGE, SYNOPSIS, DESCRIPTION,
and LICENSE."
(let* ((port (http-fetch (crate-uri name version)))
(guix-name (crate-name->package-name name))
(cargo-inputs (map crate-name->package-name cargo-inputs))
(cargo-development-inputs (map crate-name->package-name
cargo-development-inputs))
(pkg `(package
(name ,guix-name)
(version ,version)
(source (origin
(method url-fetch)
(uri (crate-uri ,name version))
(file-name (string-append name "-" version ".tar.gz"))
(sha256
(base32
,(bytevector->nix-base32-string (port-sha256 port))))))
(build-system cargo-build-system)
,@(maybe-arguments (append (maybe-cargo-inputs cargo-inputs)
(maybe-cargo-development-inputs
cargo-development-inputs)))
(home-page ,(match home-page
(() "")
(_ home-page)))
(synopsis ,synopsis)
(description ,(beautify-description description))
(license ,(match license
(() #f)
((license) license)
(_ `(list ,@license)))))))
(close-port port)
pkg))
(define (crate->guix-package crate-name)
"Fetch the metadata for CRATE-NAME from crates.io, and return the
`package' s-expression corresponding to that package, or #f on failure."
(crate-fetch crate-name make-crate-sexp))
(define (guix-package->crate-name package)
"Return the crate name of PACKAGE."
(and-let* ((origin (package-source package))
(uri (origin-uri origin))
(crate-url? uri)
(len (string-length crate-url))
(path (xsubstring uri len))
(parts (string-split path #\/)))
(match parts
((name _ ...) name))))
(define (crate-name->package-name name)
(string-append "rust-" (string-join (string-split name #\_) "-")))
;;;
;;; Updater
;;;
(define (crate-package? package)
"Return true if PACKAGE is a Rust crate from crates.io."
(let ((source-url (and=> (package-source package) origin-uri))
(fetch-method (and=> (package-source package) origin-method)))
(and (eq? fetch-method download:url-fetch)
(match source-url
((? string?)
(crate-url? source-url))
((source-url ...)
(any crate-url? source-url))))))
(define (latest-release package)
"Return an <upstream-source> for the latest release of PACKAGE."
(let* ((crate-name (guix-package->crate-name package))
(callback (lambda* (#:key version #:allow-other-keys) version))
(version (crate-fetch crate-name callback))
(url (crate-uri crate-name version)))
(upstream-source
(package (package-name package))
(version version)
(urls (list url)))))
(define %crate-updater
(upstream-updater
(name 'crates)
(description "Updater for crates.io packages")
(pred crate-package?)
(latest latest-release)))
|