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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.sbcl)
(named-readtables:in-readtable :consfigurator)
(defparameter *sbcl* '("sbcl" "--noinform" "--noprint"
"--disable-debugger" "--no-sysinit" "--no-userinit"))
(defmethod establish-connection
((type (eql :sbcl)) remaining
&key (package-manager nil package-manager-supplied-p))
"Start up a remote Lisp image using SBCL.
Specifying PACKAGE-MANAGER avoids the need to see what package managers are
available on PATH, which can provide a performance improvement."
(when (lisp-connection-p)
(warn
"Looks like you might be starting a fresh Lisp image directly from the root
Lisp. This can mean that prerequisite data gets extracted from encrypted
stores and stored unencrypted under ~~/.cache, and as such is not
recommended."))
;; Allow the user to request no attempt to install the dependencies at all,
;; perhaps because they know they're already manually installed.
(unless (and package-manager-supplied-p (not package-manager))
(handler-case (package:installed
package-manager '(:apt "sbcl")
package:+consfigurator-system-dependencies+)
;; If we couldn't find any package manager on PATH, just proceed in the
;; hope that everything we need is already installed; we'll find out
;; whether it's actually a problem pretty quickly, when the remote SBCL
;; tries to compile and load the ASDF systems.
(package:package-manager-not-found (c)
(apply #'warn (simple-condition-format-control c)
(simple-condition-format-arguments c)))))
(let ((requirements (asdf-requirements-for-host-and-features
(safe-read-from-string
(run :input "(prin1 *features*)" *sbcl*)
:package :cl-user))))
;; Don't preserve the ASDF requirements :DATA hostattrs because they are
;; valid only for this hop, not necessarily beyond here. For example, if
;; we have a connection chain like (:ssh :sbcl (:lxc :name ...)) then we
;; don't want to upload all the ASDF systems into the container.
(with-preserve-hostattrs
(request-asdf-requirements requirements) (upload-all-prerequisite-data))
(inform t "Waiting for remote Lisp to exit, this may take some time ... ")
(force-output)
(multiple-value-bind (program forms)
(continue-deploy*-program remaining requirements)
(multiple-value-bind (out err exit) (run :may-fail :input program *sbcl*)
(inform t (if (member exit '(0 22 23)) "done." "failed.") :fresh-line nil)
(when-let ((lines (lines out)))
(inform t " Output was:" :fresh-line nil)
(with-indented-inform (inform t lines)))
(exit-code-to-retval
exit
;; print FORMS not PROGRAM because latter might contain sudo passwords
:on-failure
(failed-change
"~&Remote Lisp failed; stderr was:~%~%~A~&~%Program we sent:~%~%~S"
err forms))))))
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