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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2015 David Thompson <davet@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 container)
#:use-module (ice-9 match)
#:use-module (guix ui)
#:export (guix-container))
(define (show-help)
(display (_ "Usage: guix container ACTION ARGS...
Build and manipulate Linux containers.\n"))
(newline)
(display (_ "The valid values for ACTION are:\n"))
(newline)
(display (_ "\
exec execute a command inside of an existing container\n"))
(newline)
(display (_ "
-h, --help display this help and exit"))
(display (_ "
-V, --version display version information and exit"))
(newline)
(show-bug-report-information))
(define %actions '("exec"))
(define (resolve-action name)
(let ((module (resolve-interface
`(guix scripts container ,(string->symbol name))))
(proc (string->symbol (string-append "guix-container-" name))))
(module-ref module proc)))
(define (guix-container . args)
(with-error-handling
(match args
(()
(format (current-error-port)
(_ "guix container: missing action~%")))
((or ("-h") ("--help"))
(show-help)
(exit 0))
(("--version")
(show-version-and-exit "guix container"))
((action args ...)
(if (member action %actions)
(apply (resolve-action action) args)
(format (current-error-port)
(_ "guix container: invalid action~%")))))))
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