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
|
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2016 David Craven <david@craven.ch>
;;; Copyright © 2016, 2017 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2019 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 kde)
#:use-module (guix http-client)
#:use-module (guix memoization)
#:use-module (guix gnu-maintenance)
#:use-module (guix packages)
#:use-module (guix upstream)
#:use-module (guix utils)
#:use-module (ice-9 match)
#:use-module (ice-9 rdelim)
#:use-module (ice-9 regex)
#:use-module (srfi srfi-11)
#:use-module (web uri)
#:export (%kde-updater))
;;; Commentary:
;;;
;;; This package provides not an actual importer but simply an updater for
;;; KDE packages. It grabs available files from the 'ls-lR.bz2' file
;;; available on download.kde.org.
;;;
;;; Code:
(define (tarball->version tarball)
"Return the version TARBALL corresponds to. TARBALL is a file name like
\"coreutils-8.23.tar.xz\"."
(let-values (((name version)
(gnu-package-name->name+version
(tarball-sans-extension tarball))))
version))
(define %kde-file-list-uri
;; URI of the file list (ls -lR format) for download.kde.org.
(string->uri "https://download.kde.org/ls-lR.bz2"))
(define (download.kde.org-files)
;;"Return the list of files available at download.kde.org."
(define (ls-lR-line->filename path line)
;; Remove mode, blocks, user, group, size, date, time and one space,
;; then prepend PATH
(regexp-substitute
#f (string-match "^(\\S+\\s+){6}\\S+\\s" line) path 'post))
(define (canonicalize path)
(let* ((path (if (string-prefix? "/srv/archives/ftp/" path)
(string-drop path (string-length "/srv/archives/ftp"))
path))
(path (if (string-suffix? ":" path)
(string-drop-right path 1)
path))
(path (if (not (string-suffix? "/" path))
(string-append path "/")
path)))
path))
(define (write-cache input cache)
"Read bzipped ls-lR from INPUT, and write it as a list of file paths to
CACHE."
(call-with-decompressed-port 'bzip2 input
(lambda (input)
(let loop_dirs ((files '()))
;; process a new directory block
(let ((path (read-line input)))
(if
(or (eof-object? path) (string= path ""))
(write (reverse files) cache)
(let loop_entries ((path (canonicalize path))
(files files))
;; process entries within the directory block
(let ((line (read-line input)))
(cond
((eof-object? line)
(write (reverse files) cache))
((string-prefix? "-" line)
;; this is a file entry: prepend to FILES, then re-enter
;; the loop for remaining entries
(loop_entries path
(cons (ls-lR-line->filename path line) files)
))
((not (string= line ""))
;; this is a non-file entry: ignore it, just re-enter the
;; loop for remaining entries
(loop_entries path files))
;; empty line: directory block end, re-enter the outer
;; loop for the next block
(#t (loop_dirs files)))))))))))
(define (cache-miss uri)
(format (current-error-port) "fetching ~a...~%" (uri->string uri)))
(let* ((port (http-fetch/cached %kde-file-list-uri
#:ttl 3600
#:write-cache write-cache
#:cache-miss cache-miss))
(files (read port)))
(close-port port)
files))
(define (latest-kde-release package)
"Return the latest release of PACKAGE, a KDE package, or #f if it could
not be determined."
(let* ((uri (string->uri (origin-uri (package-source package))))
(directory (dirname (dirname (uri-path uri))))
(name (package-upstream-name package))
(files (download.kde.org-files))
(relevant (filter (lambda (file)
(and (string-prefix? directory file)
(release-file? name (basename file))))
files)))
(match (sort relevant (lambda (file1 file2)
(version>? (tarball-sans-extension
(basename file1))
(tarball-sans-extension
(basename file2)))))
((and tarballs (reference _ ...))
(let* ((version (tarball->version reference))
(tarballs (filter (lambda (file)
(string=? (tarball-sans-extension
(basename file))
(tarball-sans-extension
(basename reference))))
tarballs)))
(upstream-source
(package name)
(version version)
(urls (map (lambda (file)
(string-append "mirror://kde/" file))
tarballs)))))
(()
#f))))
(define %kde-updater
(upstream-updater
(name 'kde)
(description "Updater for KDE packages")
(pred (url-prefix-predicate "mirror://kde/"))
(latest latest-kde-release)))
|
