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;;; GNU Guix --- Functional package management for GNU
;;; 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 git)
#:use-module (ice-9 match)
#:use-module (guix ui)
#:use-module (guix scripts)
#:export (guix-git))
(define (show-help)
(display (G_ "Usage: guix git COMMAND ARGS...
Operate on Git repositories.\n"))
(newline)
(display (G_ "The valid values for ACTION are:\n"))
(newline)
(display (G_ "\
authenticate verify commit signatures and authorizations\n"))
(newline)
(display (G_ "
-h, --help display this help and exit"))
(display (G_ "
-V, --version display version information and exit"))
(newline)
(show-bug-report-information))
(define %sub-commands '("authenticate"))
(define (resolve-sub-command name)
(let ((module (resolve-interface
`(guix scripts git ,(string->symbol name))))
(proc (string->symbol (string-append "guix-git-" name))))
(module-ref module proc)))
(define-command (guix-git . args)
(category plumbing)
(synopsis "operate on Git repositories")
(with-error-handling
(match args
(()
(format (current-error-port)
(G_ "guix git: missing sub-command~%")))
((or ("-h") ("--help"))
(leave-on-EPIPE (show-help))
(exit 0))
((or ("-V") ("--version"))
(show-version-and-exit "guix git"))
((sub-command args ...)
(if (member sub-command %sub-commands)
(apply (resolve-sub-command sub-command) args)
(format (current-error-port)
(G_ "guix git: invalid sub-command~%")))))))
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