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;;; Consfigurator -- Lisp declarative configuration management system
;;; Copyright (C) 2020-2021 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.local)
(defmethod establish-connection ((type (eql :local)) host &key)
(make-instance 'local-connection))
(defclass local-connection (lisp-connection)
()
(:documentation "The root deployment: applying properties to the machine the
root Lisp is running on, as the root Lisp's uid."))
(defmethod connection-run ((connection local-connection)
shell-cmd
&optional
input
environment)
;; assumes a POSIX shell (otherwise we could wrap in 'sh -c')
(multiple-value-bind (output _ exit-code)
(uiop:run-program shell-cmd
:force-shell t
:input (and input
(make-string-input-stream input))
:output :string
:error-output :output)
(declare (ignore _))
(values output exit-code)))
(defmethod connection-readfile ((connection local-connection) path)
(uiop:read-file-string path))
(defmethod connection-writefile ((connection local-connection) path contents)
(with-open-file (stream path :direction :output :if-exists :supersede)
(write-string contents stream)))
(defmethod connection-upload ((connection local-connection) from to)
(uiop:copy-file from to))
;; set the root Lisp's connection context now we've defined its value -- other
;; implementations of ESTABLISH-CONNECTION will rely on this when they call
;; RUN, READFILE etc.
(eval-when (:load-toplevel :execute)
(unless consfigurator.core::*connection*
(setq consfigurator.core::*connection*
(make-instance 'local-connection))))
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