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upstream: Move KDE updater into a separate module.
upstream: Move KDE updater into a separate module.
As it was done for (guix import gnome). * guix/import/kde.scm: New file. * Makefile.am (MODULES): Add it. * guix/gnu-maintenance.scm (%kde-updater) (%kde-file-list-uri) (download.kde.org-files) (latest-kde-release): Remove.gn-latest-20200428
Hartmut Goebel
2 years ago
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3 changed files with 159 additions and 102 deletions
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;;; GNU Guix --- Functional package management for GNU |
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;;; Copyright © 2016 David Craven <david@craven.ch> |
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;;; Copyright © 2016, 2017 Ludovic Courtès <ludo@gnu.org> |
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;;; Copyright © 2019 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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|
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(define-module (guix import kde) |
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#:use-module (guix http-client) |
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#:use-module (guix memoization) |
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#:use-module (guix gnu-maintenance) |
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#:use-module (guix packages) |
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#:use-module (guix upstream) |
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#:use-module (guix utils) |
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#:use-module (ice-9 match) |
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#:use-module (ice-9 rdelim) |
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#:use-module (ice-9 regex) |
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#:use-module (srfi srfi-11) |
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#:use-module (web uri) |
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|
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#:export (%kde-updater)) |
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|
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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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;;; KDE packages. It grabs available files from the 'ls-lR.bz2' file |
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;;; available on download.kde.org. |
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;;; |
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;;; Code: |
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|
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(define (tarball->version tarball) |
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"Return the version TARBALL corresponds to. TARBALL is a file name like |
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\"coreutils-8.23.tar.xz\"." |
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(let-values (((name version) |
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(gnu-package-name->name+version |
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(tarball-sans-extension tarball)))) |
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version)) |
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|
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(define %kde-file-list-uri |
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;; URI of the file list (ls -lR format) for download.kde.org. |
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(string->uri "https://download.kde.org/ls-lR.bz2")) |
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|
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(define (download.kde.org-files) |
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;;"Return the list of files available at download.kde.org." |
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(define (ls-lR-line->filename path line) |
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;; Remove mode, blocks, user, group, size, date, time and one space, |
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;; then prepend PATH |
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(regexp-substitute |
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#f (string-match "^(\\S+\\s+){6}\\S+\\s" line) path 'post)) |
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|
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(define (canonicalize path) |
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(let* ((path (if (string-prefix? "/srv/archives/ftp/" path) |
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(string-drop path (string-length "/srv/archives/ftp")) |
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path)) |
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(path (if (string-suffix? ":" path) |
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(string-drop-right path 1) |
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path)) |
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(path (if (not (string-suffix? "/" path)) |
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(string-append path "/") |
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path))) |
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path)) |
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|
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(define (write-cache input cache) |
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"Read bzipped ls-lR from INPUT, and write it as a list of file paths to |
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CACHE." |
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(call-with-decompressed-port 'bzip2 input |
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(lambda (input) |
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(let loop_dirs ((files '())) |
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;; process a new directory block |
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(let ((path (read-line input))) |
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(if |
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(or (eof-object? path) (string= path "")) |
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(write (reverse files) cache) |
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(let loop_entries ((path (canonicalize path)) |
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(files files)) |
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;; process entries within the directory block |
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(let ((line (read-line input))) |
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(cond |
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((eof-object? line) |
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(write (reverse files) cache)) |
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((string-prefix? "-" line) |
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;; this is a file entry: prepend to FILES, then re-enter |
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;; the loop for remaining entries |
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(loop_entries path |
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(cons (ls-lR-line->filename path line) files) |
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)) |
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((not (string= line "")) |
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;; this is a non-file entry: ignore it, just re-enter the |
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;; loop for remaining entries |
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(loop_entries path files)) |
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;; empty line: directory block end, re-enter the outer |
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;; loop for the next block |
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(#t (loop_dirs files))))))))))) |
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|
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(define (cache-miss uri) |
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(format (current-error-port) "fetching ~a...~%" (uri->string uri))) |
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|
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(let* ((port (http-fetch/cached %kde-file-list-uri |
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#:ttl 3600 |
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#:write-cache write-cache |
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#:cache-miss cache-miss)) |
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(files (read port))) |
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(close-port port) |
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files)) |
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|
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(define (latest-kde-release package) |
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"Return the latest release of PACKAGE, a KDE package, or #f if it could |
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not be determined." |
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(let* ((uri (string->uri (origin-uri (package-source package)))) |
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(directory (dirname (dirname (uri-path uri)))) |
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(name (package-upstream-name package)) |
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(files (download.kde.org-files)) |
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(relevant (filter (lambda (file) |
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(and (string-prefix? directory file) |
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(release-file? name (basename file)))) |
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files))) |
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(match (sort relevant (lambda (file1 file2) |
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(version>? (tarball-sans-extension |
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(basename file1)) |
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(tarball-sans-extension |
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(basename file2))))) |
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((and tarballs (reference _ ...)) |
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(let* ((version (tarball->version reference)) |
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(tarballs (filter (lambda (file) |
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(string=? (tarball-sans-extension |
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(basename file)) |
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(tarball-sans-extension |
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(basename reference)))) |
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tarballs))) |
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(upstream-source |
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(package name) |
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(version version) |
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(urls (map (lambda (file) |
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(string-append "mirror://kde/" file)) |
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tarballs))))) |
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(() |
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#f)))) |
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(define %kde-updater |
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(upstream-updater |
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(name 'kde) |
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(description "Updater for KDE packages") |
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(pred (url-prefix-predicate "mirror://kde/")) |
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(latest latest-kde-release))) |
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