diff options
| -rw-r--r-- | Makefile.am | 1 | ||||
| -rw-r--r-- | doc/guix.texi | 4 | ||||
| -rw-r--r-- | guix/import/launchpad.scm | 124 |
3 files changed, 128 insertions, 1 deletions
diff --git a/Makefile.am b/Makefile.am index 50839fcb27..9e49b079bf 100644 --- a/Makefile.am +++ b/Makefile.am @@ -202,6 +202,7 @@ MODULES = \ guix/import/gnu.scm \ guix/import/hackage.scm \ guix/import/json.scm \ + guix/import/launchpad.scm \ guix/import/opam.scm \ guix/import/print.scm \ guix/import/pypi.scm \ diff --git a/doc/guix.texi b/doc/guix.texi index 326607e7e9..bb344e1625 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -48,7 +48,7 @@ Copyright @copyright{} 2017 Maxim Cournoyer@* Copyright @copyright{} 2017, 2018 Tobias Geerinckx-Rice@* Copyright @copyright{} 2017 George Clemmer@* Copyright @copyright{} 2017 Andy Wingo@* -Copyright @copyright{} 2017, 2018 Arun Isaac@* +Copyright @copyright{} 2017, 2018, 2019 Arun Isaac@* Copyright @copyright{} 2017 nee@* Copyright @copyright{} 2018 Rutger Helling@* Copyright @copyright{} 2018 Oleg Pykhalov@* @@ -8841,6 +8841,8 @@ the updater for @uref{https://hackage.haskell.org, Hackage} packages. the updater for @uref{https://www.stackage.org, Stackage} packages. @item crate the updater for @uref{https://crates.io, Crates} packages. +@item launchpad +the updater for @uref{https://launchpad.net, Launchpad} packages. @end table For instance, the following command only checks for updates of Emacs diff --git a/guix/import/launchpad.scm b/guix/import/launchpad.scm new file mode 100644 index 0000000000..ffd5e9221e --- /dev/null +++ b/guix/import/launchpad.scm @@ -0,0 +1,124 @@ +;;; 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) + (hash-ref x "version")))) + + (hash-ref + (last (remove + pre-release? + (hash-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))) |