@item
@command{guix remove} is an alias for @command{guix package -r},
@item
-and @command{guix upgrade} is an alias for @command{guix package -u}.
+@command{guix upgrade} is an alias for @command{guix package -u},
+@item
+and @command{guix show} is an alias for @command{guix package --show=}.
@end itemize
These aliases are less expressive than @command{guix package} and provide
@end example
You may also specify the full name of a package to only get details about a
-specific version of it:
+specific version of it (this time using the @command{guix show} alias):
@example
-$ guix package --show=python@@3.4 | recsel -p name,version
+$ guix show python@@3.4 | recsel -p name,version
name: python
version: 3.4.3
@end example
--- /dev/null
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2019 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)
+ #:use-module (srfi srfi-1)
+ #:use-module (srfi srfi-26)
+ #: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)
+ (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")))))
+
+(define (guix-show . args)
+ (define (handle-argument arg result)
+ ;; Treat all non-option arguments as regexps.
+ (cons `(query show ,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 package to show~%")))
+
+ (guix-package* opts))
HCoop / jackhill / guix / guix.git / commitdiff