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
| | ;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2017 Ricardo Wurmus <rekado@elephly.net>
;;;
;;; 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 texlive)
#:use-module (ice-9 match)
#:use-module (sxml simple)
#:use-module (sxml xpath)
#:use-module (srfi srfi-11)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
#:use-module (srfi srfi-34)
#:use-module (web uri)
#:use-module (guix http-client)
#:use-module (guix hash)
#:use-module (guix memoization)
#:use-module (guix store)
#:use-module (guix base32)
#:use-module (guix serialization)
#:use-module (guix svn-download)
#:use-module (guix import utils)
#:use-module (guix utils)
#:use-module (guix upstream)
#:use-module (guix packages)
#:use-module (gnu packages)
#:use-module (guix build-system texlive)
#:export (texlive->guix-package))
;;; Commentary:
;;;
;;; Generate a package declaration template for the latest version of a
;;; package on CTAN, using the XML output produced by the XML API to the CTAN
;;; database at http://www.ctan.org/xml/1.2/
;;;
;;; Instead of taking the packages from CTAN, however, we fetch the sources
;;; from the SVN repository of the Texlive project. We do this because CTAN
;;; only keeps a single version of each package whereas we can access any
;;; version via SVN. Unfortunately, this means that the importer is really
;;; just a Texlive importer, not a generic CTAN importer.
;;;
;;; Code:
(define string->license
(match-lambda
("artistic2" 'gpl3+)
("gpl" 'gpl3+)
("gpl1" 'gpl1)
("gpl1+" 'gpl1+)
("gpl2" 'gpl2)
("gpl2+" 'gpl2+)
("gpl3" 'gpl3)
("gpl3+" 'gpl3+)
("lgpl2.1" 'lgpl2.1)
("lgpl3" 'lgpl3)
("knuth" 'knuth)
("pd" 'public-domain)
("bsd2" 'bsd-2)
("bsd3" 'bsd-3)
("bsd4" 'bsd-4)
("opl" 'opl1.0+)
("ofl" 'silofl1.1)
("lppl" 'lppl)
("lppl1" 'lppl1.0+) ; usually means "or later"
("lppl1.2" 'lppl1.2+) ; usually means "or later"
("lppl1.3" 'lppl1.3+) ; usually means "or later"
("lppl1.3a" 'lppl1.3a)
("lppl1.3b" 'lppl1.3b)
("lppl1.3c" 'lppl1.3c)
("cc-by-2" 'cc-by-2.0)
("cc-by-3" 'cc-by-3.0)
("cc-by-sa-2" 'cc-by-sa2.0)
("cc-by-sa-3" 'cc-by-sa3.0)
("mit" 'expat)
("fdl" 'fdl1.3+)
("gfl" 'gfl1.0)
;; These are known non-free licenses
("noinfo" 'unknown)
("nosell" 'non-free)
("shareware" 'non-free)
("nosource" 'non-free)
("nocommercial" 'non-free)
("cc-by-nc-nd-1" 'non-free)
("cc-by-nc-nd-2" 'non-free)
("cc-by-nc-nd-2.5" 'non-free)
("cc-by-nc-nd-3" 'non-free)
("cc-by-nc-nd-4" 'non-free)
((x) (string->license x))
((lst ...) `(list ,@(map string->license lst)))
(_ #f)))
(define (fetch-sxml name)
"Return an sxml representation of the package information contained in the
XML description of the CTAN package or #f in case of failure."
;; This API always returns the latest release of the module.
(let ((url (string-append "http://www.ctan.org/xml/1.2/pkg/" name)))
(guard (c ((http-get-error? c)
(format (current-error-port)
"error: failed to retrieve package information \
from ~s: ~a (~s)~%"
(uri->string (http-get-error-uri c))
(http-get-error-code c)
(http-get-error-reason c))
#f))
(xml->sxml (http-fetch url)
#:trim-whitespace? #t))))
(define (guix-name component name)
"Return a Guix package name for a given Texlive package NAME."
(string-append "texlive-" component "-"
(string-map (match-lambda
(#\_ #\-)
(#\. #\-)
(chr (char-downcase chr)))
name)))
(define* (sxml->package sxml #:optional (component "latex"))
"Return the `package' s-expression for a Texlive package from the SXML
expression describing it."
(define (sxml-value path)
(match ((sxpath path) sxml)
(() #f)
((val) val)))
(with-store store
(let* ((id (sxml-value '(entry @ id *text*)))
(synopsis (sxml-value '(entry caption *text*)))
(version (or (sxml-value '(entry version @ number *text*))
(sxml-value '(entry version @ date *text*))))
(license (string->license (sxml-value '(entry license @ type *text*))))
(home-page (string-append "http://www.ctan.org/pkg/" id))
(ref (texlive-ref component id))
(checkout (download-svn-to-store store ref)))
`(package
(name ,(guix-name component id))
(version ,version)
(source (origin
(method svn-fetch)
(uri (texlive-ref ,component ,id))
(sha256
(base32
,(bytevector->nix-base32-string
(let-values (((port get-hash) (open-sha256-port)))
(write-file checkout port)
(force-output port)
(get-hash)))))))
(build-system texlive-build-system)
(arguments ,`(,'quote (#:tex-directory ,(string-join (list component id) "/"))))
(home-page ,home-page)
(synopsis ,synopsis)
(description ,(string-trim-both
(string-join
(map string-trim-both
(string-split
(beautify-description
(sxml->string (or (sxml-value '(entry description))
'())))
#\newline)))))
(license ,license)))))
(define texlive->guix-package
(memoize
(lambda* (package-name #:optional (component "latex"))
"Fetch the metadata for PACKAGE-NAME from REPO and return the `package'
s-expression corresponding to that package, or #f on failure."
(and=> (fetch-sxml package-name)
(cut sxml->package <> component)))))
;;; ctan.scm ends here
|