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;;; Consfigurator -- Lisp declarative configuration management system
;;; Copyright (C) 2021 Sean Whitton <spwhitton@spwhitton.name>
;;; This file 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, or (at your option)
;;; any later version.
;;; This file 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 this program. If not, see <http://www.gnu.org/licenses/>.
(in-package :consfigurator.property.timezone)
(named-readtables:in-readtable :consfigurator)
(defproplist configured :posix (timezone)
"Set the system timezone. TIMEZONE is a relative path under /usr/share/zoneinfo,
e.g. \"Europe/London\"."
(:hostattrs (push-hostattr 'timezone timezone))
(os:etypecase
(linux
(file:symlinked :from "/etc/localtime"
:to (merge-pathnames timezone #P"/usr/share/zoneinfo/"))))
(os:typecase
(os:debianlike
(on-change (file:has-content "/etc/timezone" (list timezone))
(apt:reconfigured "tzdata")))))
(defproplist configured-from-parent :posix ()
"Sets the system timezone to match the parent host's."
(configured (or (get-parent-hostattrs-car 'timezone)
(failed-change "Parent has no known timezone"))))
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