guix-play/guix/gnu-maintenance.scm
Ludovic Courtès 0a7c5a09fe gnu-maintenance: Generalize, leading to (guix upstream).
* guix/gnu-maintenance.scm (<gnu-release>): Remove.
  (coalesce-releases): Move to upstream.scm.  Rename to
  'coalesce-sources'; adjust callers.
  (releases, latest-release): Return <upstream-source> objects instead
  of <gnu-release> objects.
  (latest-release*, non-emacs-gnu-package?): New procedures.
  (gnu-release-archive-types): Remove.
  (%gnu-updater): New variable.
  (package-update-path, download-tarball, package-update,
  update-package-source): Move to...
* guix/upstream.scm: ... here.  New file.
* Makefile.am (MODULES): Add it.
* po/guix/POTFILES.in: Replace gnu-maintenance.scm with upstream.scm.
* guix/scripts/refresh.scm (%updaters): New variable.
  (update-package): Adjust to new 'package-update' interface.
  (guix-refresh): Adjust to new 'package-update-path'.  Remove
  'false-if-exception' around it.
2015-10-21 14:43:34 +02:00

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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2010, 2011, 2012, 2013, 2014, 2015 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2012, 2013 Nikita Karetnikov <nikita@karetnikov.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 gnu-maintenance)
#:use-module (web uri)
#:use-module (web client)
#:use-module (web response)
#:use-module (ice-9 regex)
#:use-module (ice-9 match)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-11)
#:use-module (srfi srfi-26)
#:use-module (system foreign)
#:use-module (guix http-client)
#:use-module (guix ftp-client)
#:use-module (guix utils)
#:use-module (guix records)
#:use-module (guix upstream)
#:use-module (guix packages)
#:export (gnu-package-name
gnu-package-mundane-name
gnu-package-copyright-holder
gnu-package-savannah
gnu-package-fsd
gnu-package-language
gnu-package-logo
gnu-package-doc-category
gnu-package-doc-summary
gnu-package-doc-description
gnu-package-doc-urls
gnu-package-download-url
official-gnu-packages
find-packages
gnu-package?
releases
latest-release
gnu-release-archive-types
gnu-package-name->name+version
%gnu-updater))
;;; Commentary:
;;;
;;; Code for dealing with the maintenance of GNU packages, such as
;;; auto-updates.
;;;
;;; Code:
;;;
;;; List of GNU packages.
;;;
(define %gnumaint-base-url
"http://cvs.savannah.gnu.org/viewvc/*checkout*/gnumaint/")
(define %package-list-url
(string->uri
(string-append %gnumaint-base-url "gnupackages.txt?root=womb")))
(define %package-description-url
;; This file contains package descriptions in recutils format.
;; See <https://lists.gnu.org/archive/html/guix-devel/2013-10/msg00071.html>.
(string->uri
(string-append %gnumaint-base-url "pkgblurbs.txt?root=womb")))
(define-record-type* <gnu-package-descriptor>
gnu-package-descriptor
make-gnu-package-descriptor
gnu-package-descriptor?
(name gnu-package-name)
(mundane-name gnu-package-mundane-name)
(copyright-holder gnu-package-copyright-holder)
(savannah gnu-package-savannah)
(fsd gnu-package-fsd)
(language gnu-package-language) ; list of strings
(logo gnu-package-logo)
(doc-category gnu-package-doc-category)
(doc-summary gnu-package-doc-summary)
(doc-description gnu-package-doc-description) ; taken from 'pkgdescr.txt'
(doc-urls gnu-package-doc-urls) ; list of strings
(download-url gnu-package-download-url))
(define* (official-gnu-packages
#:optional (fetch http-fetch/cached))
"Return a list of records, which are GNU packages. Use FETCH,
to fetch the list of GNU packages over HTTP."
(define (read-records port)
;; Return a list of alists. Each alist contains fields of a GNU
;; package.
(let loop ((alist (recutils->alist port))
(result '()))
(if (null? alist)
(reverse result)
(loop (recutils->alist port)
(cons alist result)))))
(define official-description
(let ((db (read-records (fetch %package-description-url #:text? #t))))
(lambda (name)
;; Return the description found upstream for package NAME, or #f.
(and=> (find (lambda (alist)
(equal? name (assoc-ref alist "package")))
db)
(lambda (record)
(let ((field (assoc-ref record "blurb")))
;; The upstream description file uses "redirect PACKAGE" as
;; a blurb in cases where the description of the two
;; packages should be considered the same (e.g., GTK+ has
;; "redirect gnome".) This is usually not acceptable for
;; us because we prefer to have distinct descriptions in
;; such cases. Thus, ignore the 'blurb' field when that
;; happens.
(and field
(not (string-prefix? "redirect " field))
field)))))))
(map (lambda (alist)
(let ((name (assoc-ref alist "package")))
(alist->record `(("description" . ,(official-description name))
,@alist)
make-gnu-package-descriptor
(list "package" "mundane-name" "copyright-holder"
"savannah" "fsd" "language" "logo"
"doc-category" "doc-summary" "description"
"doc-url"
"download-url")
'("doc-url" "language"))))
(let* ((port (fetch %package-list-url #:text? #t))
(lst (read-records port)))
(close-port port)
lst)))
(define (find-packages regexp)
"Find GNU packages which satisfy REGEXP."
(let ((name-rx (make-regexp regexp)))
(filter (lambda (package)
(false-if-exception
(regexp-exec name-rx (gnu-package-name package))))
(official-gnu-packages))))
(define gnu-package?
(memoize
(let ((official-gnu-packages (memoize official-gnu-packages)))
(lambda (package)
"Return true if PACKAGE is a GNU package. This procedure may access the
network to check in GNU's database."
(define (mirror-type url)
(let ((uri (string->uri url)))
(and (eq? (uri-scheme uri) 'mirror)
(cond
((member (uri-host uri)
'("gnu" "gnupg" "gcc" "gnome"))
;; Definitely GNU.
'gnu)
((equal? (uri-host uri) "cran")
;; Possibly GNU: mirror://cran could be either GNU R itself
;; or a non-GNU package.
#f)
(else
;; Definitely non-GNU.
'non-gnu)))))
(define (gnu-home-page? package)
(and=> (package-home-page package)
(lambda (url)
(and=> (uri-host (string->uri url))
(lambda (host)
(member host '("www.gnu.org" "gnu.org")))))))
(or (gnu-home-page? package)
(let ((url (and=> (package-source package) origin-uri))
(name (package-name package)))
(case (and (string? url) (mirror-type url))
((gnu) #t)
((non-gnu) #f)
(else
(and (member name (map gnu-package-name (official-gnu-packages)))
#t)))))))))
;;;
;;; Latest release.
;;;
(define (ftp-server/directory project)
"Return the FTP server and directory where PROJECT's tarball are
stored."
(define quirks
'(("commoncpp2" "ftp.gnu.org" "/gnu/commoncpp")
("ucommon" "ftp.gnu.org" "/gnu/commoncpp")
("libzrtpcpp" "ftp.gnu.org" "/gnu/ccrtp")
("libosip2" "ftp.gnu.org" "/gnu/osip")
("libgcrypt" "ftp.gnupg.org" "/gcrypt/libgcrypt")
("libgpg-error" "ftp.gnupg.org" "/gcrypt/libgpg-error")
("libassuan" "ftp.gnupg.org" "/gcrypt/libassuan")
("gnupg" "ftp.gnupg.org" "/gcrypt/gnupg")
("freefont-ttf" "ftp.gnu.org" "/gnu/freefont")
("gnu-ghostscript" "ftp.gnu.org" "/gnu/ghostscript")
("mit-scheme" "ftp.gnu.org" "/gnu/mit-scheme/stable.pkg")
("icecat" "ftp.gnu.org" "/gnu/gnuzilla")
("source-highlight" "ftp.gnu.org" "/gnu/src-highlite")
("glib" "ftp.gnome.org" "/pub/gnome/sources/glib")
("gnutls" "ftp.gnutls.org" "/gcrypt/gnutls")
("TeXmacs" "ftp.texmacs.org" "/TeXmacs/targz")))
(match (assoc project quirks)
((_ server directory)
(values server directory))
(_
(values "ftp.gnu.org" (string-append "/gnu/" project)))))
(define (sans-extension tarball)
"Return TARBALL without its .tar.* or .zip extension."
(let ((end (or (string-contains tarball ".tar")
(string-contains tarball ".zip"))))
(substring tarball 0 end)))
(define %tarball-rx
;; Note: .zip files are notably used for freefont-ttf.
(make-regexp "^(.+)-([0-9]|[^-])*(-src)?\\.(tar\\.|zip$)"))
(define %alpha-tarball-rx
(make-regexp "^.*-.*[0-9](-|~)?(alpha|beta|rc|cvs|svn|git)-?[0-9\\.]*\\.tar\\."))
(define (release-file? project file)
"Return #f if FILE is not a release tarball of PROJECT, otherwise return
true."
(and (not (string-suffix? ".sig" file))
(and=> (regexp-exec %tarball-rx file)
(lambda (match)
;; Filter out unrelated files, like `guile-www-1.1.1'.
(equal? project (match:substring match 1))))
(not (regexp-exec %alpha-tarball-rx file))
(let ((s (sans-extension file)))
(regexp-exec %package-name-rx s))))
(define (tarball->version tarball)
"Return the version TARBALL corresponds to. TARBALL is a file name like
\"coreutils-8.23.tar.xz\"."
(let-values (((name version)
(gnu-package-name->name+version (sans-extension tarball))))
version))
(define (releases project)
"Return the list of releases of PROJECT as a list of release name/directory
pairs. Example: (\"mit-scheme-9.0.1\" . \"/gnu/mit-scheme/stable.pkg/9.0.1\"). "
;; TODO: Parse something like fencepost.gnu.org:/gd/gnuorg/packages-ftp.
(let-values (((server directory) (ftp-server/directory project)))
(define conn (ftp-open server))
(let loop ((directories (list directory))
(result '()))
(match directories
(()
(ftp-close conn)
(coalesce-sources result))
((directory rest ...)
(let* ((files (ftp-list conn directory))
(subdirs (filter-map (match-lambda
((name 'directory . _) name)
(_ #f))
files)))
(define (file->url file)
(string-append "ftp://" server directory "/" file))
(define (file->source file)
(let ((url (file->url file)))
(upstream-source
(package project)
(version (tarball->version file))
(urls (list url))
(signature-urls (list (string-append url ".sig"))))))
(loop (append (map (cut string-append directory "/" <>)
subdirs)
rest)
(append
;; Filter out signatures, deltas, and files which
;; are potentially not releases of PROJECT--e.g.,
;; in /gnu/guile, filter out guile-oops and
;; guile-www; in mit-scheme, filter out binaries.
(filter-map (match-lambda
((file 'file . _)
(and (release-file? project file)
(file->source file)))
(_ #f))
files)
result))))))))
(define* (latest-release project
#:key (ftp-open ftp-open) (ftp-close ftp-close))
"Return (\"FOO-X.Y\" . \"/bar/foo\") or #f. Use FTP-OPEN and FTP-CLOSE to
open (resp. close) FTP connections; this can be useful to reuse connections."
(define (latest a b)
(if (version>? a b) a b))
(define (latest-release a b)
(if (version>? (upstream-source-version a) (upstream-source-version b))
a b))
(define contains-digit?
(cut string-any char-set:digit <>))
(define patch-directory-name?
;; Return #t for patch directory names such as 'bash-4.2-patches'.
(cut string-suffix? "patches" <>))
(let-values (((server directory) (ftp-server/directory project)))
(define conn (ftp-open server))
(define (file->url file)
(string-append "ftp://" server directory "/" file))
(define (file->source file)
(let ((url (file->url file)))
(upstream-source
(package project)
(version (tarball->version file))
(urls (list url))
(signature-urls (list (string-append url ".sig"))))))
(let loop ((directory directory)
(result #f))
(let* ((entries (ftp-list conn directory))
;; Filter out sub-directories that do not contain digits---e.g.,
;; /gnuzilla/lang and /gnupg/patches.
(subdirs (filter-map (match-lambda
(((? patch-directory-name? dir)
'directory . _)
#f)
(((? contains-digit? dir) 'directory . _)
dir)
(_ #f))
entries))
;; Whether or not SUBDIRS is empty, compute the latest releases
;; for the current directory. This is necessary for packages
;; such as 'sharutils' that have a sub-directory that contains
;; only an older release.
(releases (filter-map (match-lambda
((file 'file . _)
(and (release-file? project file)
(file->source file)))
(_ #f))
entries)))
;; Assume that SUBDIRS correspond to versions, and jump into the
;; one with the highest version number.
(let* ((release (reduce latest-release #f
(coalesce-sources releases)))
(result (if (and result release)
(latest-release release result)
(or release result)))
(target (reduce latest #f subdirs)))
(if target
(loop (string-append directory "/" target)
result)
(begin
(ftp-close conn)
result)))))))
(define (latest-release* package)
"Like 'latest-release', but ignore FTP errors that might occur when PACKAGE
is not actually a GNU package, or not hosted on ftp.gnu.org, or not under that
name (this is the case for \"emacs-auctex\", for instance.)"
(catch 'ftp-error
(lambda ()
(latest-release package))
(lambda (key port . rest)
(if (ftp-connection? port)
(ftp-close port)
(close-port port))
#f)))
(define %package-name-rx
;; Regexp for a package name, e.g., "foo-X.Y". Since TeXmacs uses
;; "TeXmacs-X.Y-src", the `-src' suffix is allowed.
(make-regexp "^(.*)-(([0-9]|\\.)+)(-src)?"))
(define (gnu-package-name->name+version name+version)
"Return the package name and version number extracted from NAME+VERSION."
(let ((match (regexp-exec %package-name-rx name+version)))
(if (not match)
(values name+version #f)
(values (match:substring match 1) (match:substring match 2)))))
(define (non-emacs-gnu-package? package)
"Return true if PACKAGE is a non-Emacs GNU package. This excludes AucTeX,
for instance, whose releases are now uploaded to elpa.gnu.org."
(and (not (string-prefix? "emacs-" (package-name package)))
(gnu-package? package)))
(define %gnu-updater
(upstream-updater 'gnu
non-emacs-gnu-package?
latest-release*))
;;; gnu-maintenance.scm ends here