446 lines
18 KiB
Scheme
446 lines
18 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2010, 2011, 2012, 2013 Ludovic Courtès <ludo@gnu.org>
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;;; Copyright © 2012, 2013 Nikita Karetnikov <nikita@karetnikov.org>
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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 gnu-maintenance)
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#:use-module (web uri)
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#:use-module (web client)
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#:use-module (web response)
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#:use-module (ice-9 regex)
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#:use-module (ice-9 rdelim)
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#:use-module (ice-9 match)
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#:use-module (srfi srfi-1)
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#:use-module (srfi srfi-11)
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#:use-module (srfi srfi-26)
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#:use-module (system foreign)
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#:use-module (guix web)
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#:use-module (guix ftp-client)
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#:use-module (guix ui)
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#:use-module (guix utils)
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#:use-module (guix packages)
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#:use-module ((guix download) #:select (download-to-store))
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#:use-module (guix gnupg)
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#:use-module (rnrs io ports)
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#:use-module (guix base32)
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#:use-module ((guix build utils)
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#:select (substitute))
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#:export (gnu-package-name
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gnu-package-mundane-name
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gnu-package-copyright-holder
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gnu-package-savannah
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gnu-package-fsd
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gnu-package-language
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gnu-package-logo
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gnu-package-doc-category
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gnu-package-doc-summary
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gnu-package-doc-urls
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gnu-package-download-url
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official-gnu-packages
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find-packages
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gnu-package?
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releases
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latest-release
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gnu-package-name->name+version
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package-update-path
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package-update
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update-package-source))
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;;; Commentary:
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;;;
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;;; Code for dealing with the maintenance of GNU packages, such as
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;;; auto-updates.
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;;;
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;;; Code:
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;;;
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;;; List of GNU packages.
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;;;
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(define %package-list-url
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(string->uri
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(string-append "http://cvs.savannah.gnu.org/"
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"viewvc/*checkout*/gnumaint/"
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"gnupackages.txt?root=womb")))
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(define-record-type* <gnu-package-descriptor>
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gnu-package-descriptor
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make-gnu-package-descriptor
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gnu-package-descriptor?
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(name gnu-package-name)
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(mundane-name gnu-package-mundane-name)
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(copyright-holder gnu-package-copyright-holder)
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(savannah gnu-package-savannah)
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(fsd gnu-package-fsd)
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(language gnu-package-language)
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(logo gnu-package-logo)
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(doc-category gnu-package-doc-category)
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(doc-summary gnu-package-doc-summary)
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(doc-urls gnu-package-doc-urls)
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(download-url gnu-package-download-url))
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(define (official-gnu-packages)
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"Return a list of records, which are GNU packages."
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(define (group-package-fields port state)
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;; Return a list of alists. Each alist contains fields of a GNU
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;; package.
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(let ((line (read-line port))
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(field-rx (make-regexp "^([[:graph:]]+): (.*)$"))
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(doc-urls-rx (make-regexp "^doc-url: (.*)$"))
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(end-rx (make-regexp "^# End. .+Do not remove this line.+")))
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(define (match-field str)
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;; Packages are separated by empty strings. If STR is an
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;; empty string, create a new list to store fields of a
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;; different package. Otherwise, match and create a key-value
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;; pair.
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(match str
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(""
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(group-package-fields port (cons '() state)))
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(str
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(cond ((regexp-exec doc-urls-rx str)
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=>
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(lambda (match)
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(if (equal? (assoc-ref (first state) "doc-urls") #f)
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(group-package-fields
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port (cons (cons (cons "doc-urls"
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(list
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(match:substring match 1)))
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(first state))
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(drop state 1)))
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(group-package-fields
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port (cons (cons (cons "doc-urls"
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(cons (match:substring match 1)
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(assoc-ref (first state)
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"doc-urls")))
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(assoc-remove! (first state)
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"doc-urls"))
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(drop state 1))))))
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((regexp-exec field-rx str)
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=>
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(lambda (match)
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(group-package-fields
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port (cons (cons (cons (match:substring match 1)
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(match:substring match 2))
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(first state))
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(drop state 1)))))
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(else (group-package-fields port state))))))
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(if (or (eof-object? line)
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(regexp-exec end-rx line)) ; don't include dummy fields
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(remove null-list? state)
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(match-field line))))
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(define (alist->record alist make keys)
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;; Apply MAKE, which should be a syntactic constructor, to the
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;; values associated with KEYS in ALIST.
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(let ((args (map (cut assoc-ref alist <>) keys)))
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(apply make args)))
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(reverse
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(map (lambda (alist)
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(alist->record alist
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make-gnu-package-descriptor
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(list "package" "mundane-name" "copyright-holder"
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"savannah" "fsd" "language" "logo"
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"doc-category" "doc-summary" "doc-urls"
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"download-url")))
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(group-package-fields (http-fetch %package-list-url #:text? #t)
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'(())))))
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(define (find-packages regexp)
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"Find GNU packages which satisfy REGEXP."
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(let ((name-rx (make-regexp regexp)))
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(filter (lambda (package)
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(false-if-exception
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(regexp-exec name-rx (gnu-package-name package))))
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(official-gnu-packages))))
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(define gnu-package?
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(memoize
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(let ((official-gnu-packages (memoize official-gnu-packages)))
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(lambda (package)
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"Return true if PACKAGE is a GNU package. This procedure may access the
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network to check in GNU's database."
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;; TODO: Find a way to determine that a package is non-GNU without going
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;; through the network.
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(let ((url (and=> (package-source package) origin-uri))
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(name (package-name package)))
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(or (and (string? url) (string-prefix? "mirror://gnu" url))
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(and (member name (map gnu-package-name (official-gnu-packages)))
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#t)))))))
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;;;
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;;; Latest release.
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;;;
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(define (ftp-server/directory project)
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"Return the FTP server and directory where PROJECT's tarball are
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stored."
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(define quirks
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'(("commoncpp2" "ftp.gnu.org" "/gnu/commoncpp")
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("ucommon" "ftp.gnu.org" "/gnu/commoncpp")
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("libzrtpcpp" "ftp.gnu.org" "/gnu/ccrtp")
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("libosip2" "ftp.gnu.org" "/gnu/osip")
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("libgcrypt" "ftp.gnupg.org" "/gcrypt/libgcrypt")
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("libgpg-error" "ftp.gnupg.org" "/gcrypt/libgpg-error")
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("libassuan" "ftp.gnupg.org" "/gcrypt/libassuan")
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("gnupg" "ftp.gnupg.org" "/gcrypt/gnupg")
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("freefont-ttf" "ftp.gnu.org" "/gnu/freefont")
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("gnu-ghostscript" "ftp.gnu.org" "/gnu/ghostscript")
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("mit-scheme" "ftp.gnu.org" "/gnu/mit-scheme/stable.pkg")
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("icecat" "ftp.gnu.org" "/gnu/gnuzilla")
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("source-highlight" "ftp.gnu.org" "/gnu/src-highlite")
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("glib" "ftp.gnome.org" "/pub/gnome/sources/glib")
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("gnutls" "ftp.gnutls.org" "/gcrypt/gnutls")
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("TeXmacs" "ftp.texmacs.org" "/TeXmacs/targz")))
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(match (assoc project quirks)
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((_ server directory)
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(values server directory))
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(_
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(values "ftp.gnu.org" (string-append "/gnu/" project)))))
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(define (sans-extension tarball)
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"Return TARBALL without its .tar.* extension."
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(let ((end (string-contains tarball ".tar")))
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(substring tarball 0 end)))
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(define %tarball-rx
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(make-regexp "^(.+)-([0-9]|[^-])*(-src)?\\.tar\\."))
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(define %alpha-tarball-rx
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(make-regexp "^.*-.*[0-9](-|~)?(alpha|beta|rc|cvs|svn|git)-?[0-9\\.]*\\.tar\\."))
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(define (release-file project file)
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"Return #f if FILE is not a release tarball of PROJECT, otherwise return
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PACKAGE-VERSION."
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(and (not (string-suffix? ".sig" file))
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(and=> (regexp-exec %tarball-rx file)
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(lambda (match)
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;; Filter out unrelated files, like `guile-www-1.1.1'.
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(equal? project (match:substring match 1))))
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(not (regexp-exec %alpha-tarball-rx file))
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(let ((s (sans-extension file)))
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(and (regexp-exec %package-name-rx s) s))))
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(define (releases project)
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"Return the list of releases of PROJECT as a list of release name/directory
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pairs. Example: (\"mit-scheme-9.0.1\" . \"/gnu/mit-scheme/stable.pkg/9.0.1\"). "
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;; TODO: Parse something like fencepost.gnu.org:/gd/gnuorg/packages-ftp.
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(let-values (((server directory) (ftp-server/directory project)))
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(define conn (ftp-open server))
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(let loop ((directories (list directory))
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(result '()))
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(match directories
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(()
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(ftp-close conn)
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result)
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((directory rest ...)
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(let* ((files (ftp-list conn directory))
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(subdirs (filter-map (match-lambda
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((name 'directory . _) name)
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(_ #f))
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files)))
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(loop (append (map (cut string-append directory "/" <>)
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subdirs)
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rest)
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(append
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;; Filter out signatures, deltas, and files which
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;; are potentially not releases of PROJECT--e.g.,
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;; in /gnu/guile, filter out guile-oops and
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;; guile-www; in mit-scheme, filter out binaries.
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(filter-map (match-lambda
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((file 'file . _)
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(and=> (release-file project file)
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(cut cons <> directory)))
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(_ #f))
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files)
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result))))))))
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(define (latest-release project)
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"Return (\"FOO-X.Y\" . \"/bar/foo\") or #f."
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(define (latest a b)
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(if (version>? a b) a b))
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(define contains-digit?
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(cut string-any char-set:digit <>))
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(let-values (((server directory) (ftp-server/directory project)))
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(define conn (ftp-open server))
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(let loop ((directory directory))
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(let* ((entries (ftp-list conn directory))
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;; Filter out sub-directories that do not contain digits---e.g.,
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;; /gnuzilla/lang and /gnupg/patches.
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(subdirs (filter-map (match-lambda
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(((? contains-digit? dir) 'directory . _)
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dir)
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(_ #f))
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entries)))
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(match subdirs
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(()
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;; No sub-directories, so assume that tarballs are here.
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(let ((files (filter-map (match-lambda
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((file 'file . _)
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(release-file project file))
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(_ #f))
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entries)))
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(and=> (reduce latest #f files)
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(cut cons <> directory))))
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((subdirs ...)
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;; Assume that SUBDIRS correspond to versions, and jump into the
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;; one with the highest version number.
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(let ((target (reduce latest #f subdirs)))
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(and target
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(loop (string-append directory "/" target))))))))))
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(define %package-name-rx
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;; Regexp for a package name, e.g., "foo-X.Y". Since TeXmacs uses
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;; "TeXmacs-X.Y-src", the `-src' suffix is allowed.
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(make-regexp "^(.*)-(([0-9]|\\.)+)(-src)?"))
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(define (gnu-package-name->name+version name+version)
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"Return the package name and version number extracted from NAME+VERSION."
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(let ((match (regexp-exec %package-name-rx name+version)))
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(if (not match)
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(values name+version #f)
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(values (match:substring match 1) (match:substring match 2)))))
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;;;
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;;; Auto-update.
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;;;
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(define (package-update-path package)
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"Return an update path for PACKAGE, or #f if no update is needed."
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(and (gnu-package? package)
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(match (latest-release (package-name package))
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((name+version . directory)
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(let-values (((_ new-version)
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(package-name->name+version name+version)))
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(and (version>? name+version (package-full-name package))
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`(,new-version . ,directory))))
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(_ #f))))
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(define* (download-tarball store project directory version
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#:optional (archive-type "gz"))
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"Download PROJECT's tarball over FTP and check its OpenPGP signature. On
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success, return the tarball file name."
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(let* ((server (ftp-server/directory project))
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(base (string-append project "-" version ".tar." archive-type))
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(url (string-append "ftp://" server "/" directory "/" base))
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(sig-url (string-append url ".sig"))
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(tarball (download-to-store store url))
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(sig (download-to-store store sig-url)))
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(let ((ret (gnupg-verify* sig tarball)))
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(if ret
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tarball
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(begin
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(warning (_ "signature verification failed for `~a'~%")
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base)
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(warning (_ "(could be because the public key is not in your keyring)~%"))
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#f)))))
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(define (package-update store package)
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"Return the new version and the file name of the new version tarball for
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PACKAGE, or #f and #f when PACKAGE is up-to-date."
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(match (package-update-path package)
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((version . directory)
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(let-values (((name)
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(package-name package))
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((archive-type)
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(let ((source (package-source package)))
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(or (and (origin? source)
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(file-extension (origin-uri source)))
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"gz"))))
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(let ((tarball (download-tarball store name directory version
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archive-type)))
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(values version tarball))))
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(_
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(values #f #f))))
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(define (update-package-source package version hash)
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"Modify the source file that defines PACKAGE to refer to VERSION,
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whose tarball has SHA256 HASH (a bytevector). Return the new version string
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if an update was made, and #f otherwise."
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(define (new-line line matches replacement)
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;; Iterate over MATCHES and return the modified line based on LINE.
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;; Replace each match with REPLACEMENT.
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(let loop ((m* matches) ; matches
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(o 0) ; offset in L
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(r '())) ; result
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(match m*
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(()
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(let ((r (cons (substring line o) r)))
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(string-concatenate-reverse r)))
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((m . rest)
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(loop rest
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(match:end m)
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(cons* replacement
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(substring line o (match:start m))
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r))))))
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(define (update-source file old-version version
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old-hash hash)
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;; Update source file FILE, replacing occurrences OLD-VERSION by VERSION
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;; and occurrences of OLD-HASH by HASH (base32 representation thereof).
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;; TODO: Currently this is a bit of a sledgehammer: if VERSION occurs in
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;; different unrelated places, we may modify it more than needed, for
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;; instance. We should try to make changes only within the sexp that
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;; corresponds to the definition of PACKAGE.
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(let ((old-hash (bytevector->nix-base32-string old-hash))
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(hash (bytevector->nix-base32-string hash)))
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(substitute file
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`((,(regexp-quote old-version)
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. ,(cut new-line <> <> version))
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(,(regexp-quote old-hash)
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. ,(cut new-line <> <> hash))))
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version))
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(let ((name (package-name package))
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(loc (package-field-location package 'version)))
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(if loc
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(let ((old-version (package-version package))
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(old-hash (origin-sha256 (package-source package)))
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(file (and=> (location-file loc)
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(cut search-path %load-path <>))))
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(if file
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(update-source file
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old-version version
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old-hash hash)
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(begin
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(warning (_ "~a: could not locate source file")
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(location-file loc))
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#f)))
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(begin
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(format (current-error-port)
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(_ "~a: ~a: no `version' field in source; skipping~%")
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(location->string (package-location package))
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name)))))
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;;; gnu-maintenance.scm ends here
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