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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013 Ludovic Courtès <ludo@gnu.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 scripts refresh)
#:use-module (guix ui)
#:use-module (guix store)
#:use-module (guix utils)
#:use-module (guix packages)
#:use-module (guix gnu-maintenance)
#:use-module (gnu packages)
#:use-module (ice-9 match)
#:use-module (ice-9 regex)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-11)
#:use-module (srfi srfi-26)
#:use-module (srfi srfi-37)
#:use-module (rnrs io ports)
#:export (guix-refresh))
;;;
;;; Command-line options.
;;;
(define %default-options
;; Alist of default option values.
'())
(define %options
;; Specification of the command-line options.
(list (option '(#\n "dry-run") #f #f
(lambda (opt name arg result)
(alist-cons 'dry-run? #t result)))
(option '(#\h "help") #f #f
(lambda args
(show-help)
(exit 0)))
(option '(#\V "version") #f #f
(lambda args
(show-version-and-exit "guix refresh")))))
(define (show-help)
(display (_ "Usage: guix refresh [OPTION]... PACKAGE...
Update package definitions to match the latest upstream version.\n"))
(display (_ "
-n, --dry-run do not build the derivations"))
(newline)
(display (_ "
-h, --help display this help and exit"))
(display (_ "
-V, --version display version information and exit"))
(newline)
(show-bug-report-information))
;;;
;;; Entry point.
;;;
(define (guix-refresh . args)
(define (parse-options)
;; Return the alist of option values.
(args-fold args %options
(lambda (opt name arg result)
(leave (_ "~A: unrecognized option~%") name))
(lambda (arg result)
(alist-cons 'argument arg result))
%default-options))
(let* ((opts (parse-options))
(dry-run? (assoc-ref opts 'dry-run?))
(packages (match (concatenate
(filter-map (match-lambda
(('argument . value)
(let ((p (find-packages-by-name value)))
(unless p
(leave (_ "~a: no package by that name")
value))
p))
(_ #f))
opts))
(() ; default to all packages
;; TODO: Keep only the newest of each package.
(fold-packages cons '()))
(some ; user-specified packages
some))))
(with-error-handling
(if dry-run?
(for-each (lambda (package)
(match (false-if-exception (package-update-path package))
((new-version . directory)
(let ((loc (or (package-field-location package 'version)
(package-location package))))
(format (current-error-port)
(_ "~a: ~a would be upgraded from ~a to ~a~%")
(location->string loc)
(package-name package) (package-version package)
new-version)))
(_ #f)))
packages)
(let ((store (open-connection)))
(for-each (lambda (package)
(let-values (((version tarball)
(catch #t
(lambda ()
(package-update store package))
(lambda _
(values #f #f))))
((loc)
(or (package-field-location package
'version)
(package-location package))))
(when version
(format (current-error-port)
(_ "~a: ~a: updating from version ~a to version ~a...~%")
(location->string loc) (package-name package)
(package-version package) version)
(let ((hash (call-with-input-file tarball
(compose sha256 get-bytevector-all))))
(update-package-source package version hash)))))
packages))))))
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