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a7db92d9b3
This reverts commit d0d87a744d. Oops! This
caused a world rebuild.
Change-Id: I25fff644b2b61d0ee93d69b457b04c72b5b74d15
137 lines
5.7 KiB
Scheme
137 lines
5.7 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2017, 2019, 2021, 2024 Ludovic Courtès <ludo@gnu.org>
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;;; Copyright © 2022, 2024 Maxim Cournoyer <maxim.cournoyer@gmail.com>
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;;; Copyright © 2022 Hartmut Goebel <h.goebel@crazy-compilers.com>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (guix import gnome)
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#:use-module ((guix import utils) #:select (find-version))
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#:use-module (guix upstream)
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#:use-module (guix packages)
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#:use-module (guix http-client)
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#:use-module (guix diagnostics)
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#:use-module (guix i18n)
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#:use-module (json)
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#:use-module (srfi srfi-1)
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#:use-module (srfi srfi-26)
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#:use-module (srfi srfi-34)
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#:use-module (web uri)
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#:use-module (ice-9 match)
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#:use-module (ice-9 regex)
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#:export (%gnome-updater))
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;;; Commentary:
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;;;
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;;; This package provides not an actual importer but simply an updater for
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;;; GNOME packages. It grabs package meta-data from 'cache.json' files
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;;; available on ftp.gnome.org.
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;;;
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;;; Code:
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(define (jsonish->upstream-source name jsonish)
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"Return an <upstream-source> object for package NAME, using JSONISH as the
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source for metadata."
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(match jsonish
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((version . dictionary)
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(upstream-source
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(package name)
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(version version)
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(urls (filter-map (lambda (extension)
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(match (assoc-ref dictionary extension)
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(#f
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#f)
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((? string? relative-url)
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(string-append "mirror://gnome/sources/"
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name "/" relative-url))))
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'("tar.lz" "tar.xz" "tar.bz2" "tar.gz")))))))
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(define* (import-gnome-release package #:key version partial-version?)
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"Return the latest release of PACKAGE, a GNOME package, or #f if it could
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not be determined. Optionally include a VERSION string to fetch a specific
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version, which may be partial if PARTIAL-VERSION? is #t."
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(define %not-dot
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(char-set-complement (char-set #\.)))
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(define (pre-release-text? text)
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(string-match "^(alpha|beta|rc)" text))
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(define (release-version? version)
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"Predicate to check if VERSION matches the format of a GNOME release
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version. A release version can have more than one form, depending on the
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GNOME component, but typically it takes the form of a major-minor tuple, where
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minor can also be prefixed with \"alpha\", \"beta\" or \"rc\". For more
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information about the GNOME versioning scheme, see:
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https://discourse.gnome.org/t/new-gnome-versioning-scheme/4235"
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(define components (string-tokenize version %not-dot))
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(if (any pre-release-text? components)
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#f ;ignore pre-releases
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(match components
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(((= string->number major) (= string->number minor) . _)
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;; Any other 3+ components versions such as "2.72.2".
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(and major minor))
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(((= string->number major) . _)
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;; A GNOME version strings like "42.1".
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major))))
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(define upstream-name
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;; Some packages like "NetworkManager" have camel-case names.
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(package-upstream-name package))
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(guard (c ((http-get-error? c)
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(unless (= 404 (http-get-error-code c))
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(warning (G_ "failed to download from '~a': ~a (~s)~%")
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(uri->string (http-get-error-uri c))
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(http-get-error-code c)
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(http-get-error-reason c)))
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#f))
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(let* ((port (http-fetch/cached
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(string->uri (string-append
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"https://ftp.gnome.org/pub/gnome/sources/"
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upstream-name "/cache.json"))
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;; ftp.gnome.org supports 'if-Modified-Since', so the local
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;; cache can expire early.
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#:ttl (* 60 10)
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;; Hide messages about URL redirects.
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#:log-port (%make-void-port "w")))
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(json (json->scm port)))
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(close-port port)
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(match json
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(#(4 releases _ ...)
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(let* ((releases (assoc-ref releases upstream-name))
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(all-versions (map car releases))
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(release-versions (filter release-version? all-versions))
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(version (or (find-version release-versions
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version partial-version?)
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(and version
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;; If the user-provided VERSION could not be
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;; found, fallback to look through all
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;; versions.
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(find-version all-versions
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version partial-version?)))))
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(and version
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(jsonish->upstream-source
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upstream-name
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(find (compose (cut string=? version <>) car) releases)))))))))
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(define %gnome-updater
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(upstream-updater
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(name 'gnome)
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(description "Updater for GNOME packages")
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(pred (url-prefix-predicate "mirror://gnome/"))
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(import import-gnome-release)))
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