guix-devel/guix/scripts/search.scm

68 lines
2.2 KiB
Scheme

;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2019 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 search)
#:use-module (guix ui)
#:use-module (guix scripts package)
#:use-module (guix scripts)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
#:use-module (srfi srfi-37)
#:export (guix-search))
(define (show-help)
(display (G_ "Usage: guix search [OPTION] REGEXPS...
Search for packages matching REGEXPS."))
(display (G_"
This is an alias for 'guix package -s'.\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 %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 search")))))
(define (guix-search . args)
(define (handle-argument arg result)
;; Treat all non-option arguments as regexps.
(cons `(query search ,(or arg ""))
result))
(define opts
(args-fold* args %options
(lambda (opt name arg . rest)
(leave (G_ "~A: unrecognized option~%") name))
handle-argument
'()))
(unless (assoc-ref opts 'query)
(leave (G_ "missing arguments: no regular expressions to search for~%")))
(guix-package* opts))