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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2019, 2021 Simon Tournier <zimon.toutoune@gmail.com>
;;;
;;; 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 show)
#:use-module (guix ui)
#:use-module (guix scripts package)
#:use-module ((guix scripts build)
#:select (%standard-build-options))
#:use-module (guix scripts)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-37)
#:export (guix-show))
(define (show-help)
(display (G_ "Usage: guix show [OPTION] PACKAGE...
Show details about PACKAGE."))
(display (G_"
This is an alias for 'guix package --show='.\n"))
(newline)
(display (G_ "
-h, --help display this help and exit"))
(display (G_ "
-V, --version display version information and exit"))
(newline)
(display (G_ "
-L, --load-path=DIR prepend DIR to the package module search path"))
(newline)
(show-bug-report-information))
(define %options
;; Specification of the command-line options.
(list (option '(#\h "help") #f #f
(lambda args
(show-help)
(exit 0)))
(option '(#\V "version") #f #f
(lambda args
(show-version-and-exit "guix show")))
(find (lambda (option)
(member "load-path" (option-names option)))
%standard-build-options)))
(define-command (guix-show . args)
(synopsis "show information about packages")
(define (handle-argument arg result)
;; Treat all non-option arguments as regexps.
(cons `(query show ,arg)
result))
(define opts
(parse-command-line args %options (list (list))
#:build-options? #f
#:argument-handler handle-argument))
(unless (assoc-ref opts 'query)
(leave (G_ "missing arguments: no package to show~%")))
(guix-package* (reverse opts)))
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