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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2019 David Thompson <davet@gnu.org>
;;; Copyright © 2019 Jakob L. Kreuze <zerodaysfordays@sdf.org>
;;; Copyright © 2020 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 deploy)
#:use-module (gnu machine)
#:use-module (guix discovery)
#:use-module (guix scripts)
#:use-module (guix scripts build)
#:use-module (guix store)
#:use-module (guix ui)
#:use-module (guix utils)
#:use-module (guix grafts)
#:use-module (guix status)
#:use-module (ice-9 format)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-34)
#:use-module (srfi srfi-35)
#:use-module (srfi srfi-37)
#:export (guix-deploy))
;;; Commentary:
;;;
;;; This program provides a command-line interface to (gnu machine), allowing
;;; users to perform remote deployments through specification files.
;;;
;;; Code:
(define (show-help)
(display (G_ "Usage: guix deploy [OPTION] FILE...
Perform the deployment specified by FILE.\n"))
(show-build-options-help)
(newline)
(display (G_ "
-h, --help display this help and exit"))
(display (G_ "
-V, --version display version information and exit"))
(newline)
(display (G_ "
-v, --verbosity=LEVEL use the given verbosity LEVEL"))
(show-bug-report-information))
(define %options
(cons* (option '(#\h "help") #f #f
(lambda args
(show-help)
(exit 0)))
(option '(#\V "version") #f #f
(lambda args
(show-version-and-exit "guix deploy")))
(option '(#\s "system") #t #f
(lambda (opt name arg result)
(alist-cons 'system arg
(alist-delete 'system result eq?))))
(option '(#\v "verbosity") #t #f
(lambda (opt name arg result)
(let ((level (string->number* arg)))
(alist-cons 'verbosity level
(alist-delete 'verbosity result)))))
%standard-build-options))
(define %default-options
;; Alist of default option values.
`((verbosity . 1)
(debug . 0)
(graft? . #t)
(substitutes? . #t)
(offload? . #t)
(print-build-trace? . #t)
(print-extended-build-trace? . #t)
(multiplexed-build-output? . #t)))
(define (load-source-file file)
"Load FILE as a user module."
(let* ((guix-path (dirname (search-path %load-path "guix.scm")))
(environment-modules (scheme-modules* guix-path "gnu/machine"))
(module (make-user-module (append '((gnu) (gnu machine))
environment-modules))))
(load* file module)))
(define (show-what-to-deploy machines)
"Show the list of machines to deploy, MACHINES."
(let ((count (length machines)))
(format (current-error-port)
(N_ "The following ~d machine will be deployed:~%"
"The following ~d machines will be deployed:~%"
count)
count)
(display (indented-string
(fill-paragraph (string-join (map machine-display-name machines)
", ")
(- (%text-width) 2) 2)
2)
(current-error-port))
(display "\n\n" (current-error-port))))
(define (guix-deploy . args)
(define (handle-argument arg result)
(alist-cons 'file arg result))
(let* ((opts (parse-command-line args %options (list %default-options)
#:argument-handler handle-argument))
(file (assq-ref opts 'file))
(machines (or (and file (load-source-file file)) '())))
(show-what-to-deploy machines)
(with-status-verbosity (assoc-ref opts 'verbosity)
(with-store store
(set-build-options-from-command-line store opts)
(with-build-handler (build-notifier #:use-substitutes?
(assoc-ref opts 'substitutes?))
(for-each (lambda (machine)
(info (G_ "deploying to ~a...~%")
(machine-display-name machine))
(parameterize ((%graft? (assq-ref opts 'graft?)))
(guard (c ((message-condition? c)
(report-error (G_ "failed to deploy ~a: ~a~%")
(machine-display-name machine)
(condition-message c)))
((deploy-error? c)
(when (deploy-error-should-roll-back c)
(info (G_ "rolling back ~a...~%")
(machine-display-name machine))
(run-with-store store (roll-back-machine machine)))
(apply throw (deploy-error-captured-args c))))
(run-with-store store (deploy-machine machine))
(info (G_ "successfully deployed ~a~%")
(machine-display-name machine)))))
machines))))))
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