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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.connection.fork)
(named-readtables:in-readtable :consfigurator)
(defclass fork-connection (local-connection) ())
(defgeneric post-fork (connection)
(:documentation
"Code to execute after forking/reinvoking but before calling CONTINUE-DEPLOY*.
Must not start up any threads."))
(defmethod continue-connection ((connection fork-connection) remaining)
(upload-all-prerequisite-data connection)
(eval-in-grandchild `(post-fork ,connection)
`(continue-deploy* ,connection ',remaining) (out err exit)
(when-let ((lines (lines out)))
(inform t lines))
(return-exit
exit
:on-failure (failed-change
"~&Fork connection child failed; stderr was ~%~%~A" err))))
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