diff options
author | Ludovic Courtès <ludo@gnu.org> | 2017-09-25 23:58:02 +0200 |
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committer | Ludovic Courtès <ludo@gnu.org> | 2017-09-26 00:35:06 +0200 |
commit | c1d8b3b3b5af8282328b87dd7a8d09357cbb0af7 (patch) | |
tree | 08f03083be66a068e18c45e0936fa709228d606e /guix/import/gnome.scm | |
parent | 97abc90733270c4be5ce1f51e5e757d43787950b (diff) |
upstream: Add new GNOME updater.
Partly fixes <https://bugs.gnu.org/28159>.
Reported by Hartmut Goebel <h.goebel@crazy-compilers.com>.
* guix/import/gnome.scm: New file.
* Makefile.am (MODULES): Add it.
* guix/gnu-maintenance.scm (latest-gnome-release)
(%gnome-updater): Remove.
Diffstat (limited to 'guix/import/gnome.scm')
-rw-r--r-- | guix/import/gnome.scm | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/guix/import/gnome.scm b/guix/import/gnome.scm new file mode 100644 index 0000000000..1ade63e1af --- /dev/null +++ b/guix/import/gnome.scm @@ -0,0 +1,112 @@ +;;; GNU Guix --- Functional package management for GNU +;;; Copyright © 2017 Ludovic Courtès <ludo@gnu.org> +;;; +;;; 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 gnome) + #:use-module (guix upstream) + #:use-module (guix utils) + #:use-module (guix packages) + #:use-module (guix http-client) + #:use-module (json) + #:use-module (srfi srfi-1) + #:use-module (srfi srfi-11) + #:use-module (srfi srfi-34) + #:use-module (web uri) + #:use-module (ice-9 match) + #:export (%gnome-updater)) + +;;; Commentary: +;;; +;;; This package provides not an actual importer but simply an updater for +;;; GNOME packages. It grabs package meta-data from 'cache.json' files +;;; available on ftp.gnome.org. +;;; +;;; Code: + +(define (jsonish->upstream-source name jsonish) + "Return an <upstream-source> object for package NAME, using JSONISH as the +source for metadata." + (match jsonish + ((version . dictionary) + (upstream-source + (package name) + (version version) + (urls (filter-map (lambda (extension) + (match (hash-ref dictionary extension) + (#f + #f) + ((? string? relative-url) + (string-append "mirror://gnome/sources/" + name "/" relative-url)))) + '("tar.lz" "tar.xz" "tar.bz2" "tar.gz"))))))) + +(define (latest-gnome-release package) + "Return the latest release of PACKAGE, a GNOME package, or #f if it could +not be determined." + (define %not-dot + (char-set-complement (char-set #\.))) + + (define (even-minor-version? version) + (match (string-tokenize version %not-dot) + (((= string->number major) (= string->number minor) . rest) + (and minor (even? minor))) + (_ + #t))) ;cross fingers + + (define upstream-name + ;; Some packages like "NetworkManager" have camel-case names. + (package-upstream-name package)) + + (guard (c ((http-get-error? c) + (if (= 404 (http-get-error-code c)) + #f + (raise c)))) + (let* ((port (http-fetch/cached + (string->uri (string-append + "https://ftp.gnome.org/pub/gnome/sources/" + upstream-name "/cache.json")) + + ;; ftp.gnome.org supports 'if-Modified-Since', so the local + ;; cache can expire early. + #:ttl (* 60 10))) + (json (json->scm port))) + (close-port port) + (match json + ((4 (? hash-table? releases) _ ...) + (let* ((releases (hash-ref releases upstream-name)) + (latest (hash-fold (lambda (key value result) + (cond ((even-minor-version? key) + (match result + (#f + (cons key value)) + ((newest . _) + (if (version>? key newest) + (cons key value) + result)))) + (else + result))) + #f + releases))) + (and latest + (jsonish->upstream-source upstream-name latest)))))))) + +(define %gnome-updater + (upstream-updater + (name 'gnome) + (description "Updater for GNOME packages") + (pred (url-prefix-predicate "mirror://gnome/")) + (latest latest-gnome-release))) |