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 © 2019, 2020 Arun Isaac <arunisaac@systemreboot.net>
;;; Copyright © 2021 Matthew James Kraai <kraai@ftbfs.org>
;;; Copyright © 2020 Brice Waegeneire <brice@waegenei.re>
;;; Copyright © 2022 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 import launchpad)
#:use-module (ice-9 match)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
#:use-module (web uri)
#:use-module ((guix download) #:prefix download:)
#:use-module (guix import json)
#:use-module (guix packages)
#:use-module (guix upstream)
#:use-module (guix utils)
#:export (%launchpad-updater))
(define (find-extension url)
"Return the extension of the archive e.g. '.tar.gz' given a URL, or
false if none is recognized"
(find (lambda (x) (string-suffix? x url))
(list ".orig.tar.gz" ".tar.gz" ".tar.bz2" ".tar.xz"
".zip" ".tar" ".tgz" ".tbz" ".love")))
(define (updated-launchpad-url old-package new-version)
;; Return a url for the OLD-PACKAGE with NEW-VERSION. If no source url in
;; the OLD-PACKAGE is a Launchpad url, then return false.
(define (updated-url url)
(and (string-prefix? "https://launchpad.net/" url)
(let ((ext (or (find-extension url) ""))
(name (package-name old-package))
(version (package-version old-package))
(repo (launchpad-repository url)))
(cond
((< (length (string-split version #\.)) 2) #f)
((string=? (string-append "https://launchpad.net/"
repo "/" (version-major+minor version)
"/" version "/+download/" repo "-" version ext)
url)
(string-append "https://launchpad.net/"
repo "/" (version-major+minor new-version)
"/" new-version "/+download/" repo "-" new-version ext))
((string=? (string-append "https://launchpad.net/"
repo "/" (version-major+minor version)
"/" version "/+download/" repo "_" version ext)
url)
(string-append "https://launchpad.net/"
repo "/" (version-major+minor new-version)
"/" new-version "/+download/" repo "-" new-version ext))
((string=? (string-append "https://launchpad.net/"
repo "/trunk/" version "/+download/"
repo "-" version ext)
url)
(string-append "https://launchpad.net/"
repo "/trunk/" new-version
"/+download/" repo "-" new-version ext))
((string=? (string-append "https://launchpad.net/"
repo "/trunk/" version "/+download/"
repo "_" version ext)
url)
(string-append "https://launchpad.net/"
repo "/trunk/" new-version
"/+download/" repo "_" new-version ext))
(#t #f))))) ; Some URLs are not recognised.
(match (package-source old-package)
((? origin? origin)
(let ((source-uri (origin-uri origin))
(fetch-method (origin-method origin)))
(and (eq? fetch-method download:url-fetch)
(match source-uri
((? string?)
(updated-url source-uri))
((source-uri ...)
(any updated-url source-uri))))))
(_ #f)))
(define (launchpad-package? package)
"Return true if PACKAGE is a package from Launchpad, else false."
(->bool (updated-launchpad-url package "1.0.0")))
(define (launchpad-repository url)
"Return a string e.g. linuxdcpp of the name of the repository, from a string
URL of the form
'https://launchpad.net/linuxdcpp/1.1/1.1.0/+download/linuxdcpp-1.1.0.tar.bz2'"
(match (string-split (uri-path (string->uri url)) #\/)
((_ repo . rest) repo)))
(define (latest-released-version repository)
"Return a string of the newest released version name given the REPOSITORY,
for example, 'linuxdcpp'. Return #f if there is no releases."
(define (pre-release? x)
;; Versions containing anything other than digit characters and "." (for
;; example, "5.1.0-rc1") are assumed to be pre-releases.
(not (string-every (char-set-union (char-set #\.)
char-set:digit)
(assoc-ref x "version"))))
(match (json-fetch
(string-append "https://api.launchpad.net/1.0/"
repository "/releases"))
(#f #f) ;404 or similar
(json
(assoc-ref
(last (remove pre-release? (vector->list (assoc-ref json "entries"))))
"version"))))
(define* (import-release pkg #:key (version #f))
"Return an <upstream-source> for the latest release of PKG. Optionally
include a VERSION string to fetch a specific version."
(define (origin-launchpad-uri origin)
(match (origin-uri origin)
((? string? url) url) ; surely a Launchpad URL
((urls ...)
(find (cut string-contains <> "launchpad.net") urls))))
(let* ((source-uri (origin-launchpad-uri (package-source pkg)))
(name (package-name pkg))
(repository (launchpad-repository source-uri))
(newest-version (or version (latest-released-version repository))))
(if newest-version
(upstream-source
(package name)
(version newest-version)
(urls (list (updated-launchpad-url pkg newest-version))))
#f))) ; On Launchpad but no proper releases
(define %launchpad-updater
(upstream-updater
(name 'launchpad)
(description "Updater for Launchpad packages")
(pred launchpad-package?)
(import import-release)))
|