126 lines
4.9 KiB
Scheme
126 lines
4.9 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
|
|
;;; Copyright © 2019 Arun Isaac <arunisaac@systemreboot.net>
|
|
;;;
|
|
;;; 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 ".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
|
|
((and
|
|
(>= (length (string-split version #\.)) 2)
|
|
(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))
|
|
(#t #f))))) ; Some URLs are not recognised.
|
|
|
|
(let ((source-uri (and=> (package-source old-package) origin-uri))
|
|
(fetch-method (and=> (package-source old-package) origin-method)))
|
|
(cond
|
|
((eq? fetch-method download:url-fetch)
|
|
(match source-uri
|
|
((? string?)
|
|
(updated-url source-uri))
|
|
((source-uri ...)
|
|
(find updated-url source-uri))))
|
|
(else #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 package-name)
|
|
"Return a string of the newest released version name given the PACKAGE-NAME,
|
|
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"))))
|
|
|
|
(assoc-ref
|
|
(last (remove
|
|
pre-release?
|
|
(vector->list
|
|
(assoc-ref (json-fetch
|
|
(string-append "https://api.launchpad.net/1.0/"
|
|
package-name "/releases"))
|
|
"entries"))))
|
|
"version"))
|
|
|
|
(define (latest-release pkg)
|
|
"Return an <upstream-source> for the latest release of PKG."
|
|
(define (origin-github-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-github-uri (package-source pkg)))
|
|
(name (package-name pkg))
|
|
(newest-version (latest-released-version name)))
|
|
(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?)
|
|
(latest latest-release)))
|