@@ -1,6 +1,7 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2018 Oleg Pykhalov <go.wigust@gmail.com>
+;;; Copyright © 2020 Ekaitz Zarraga <ekaitz@elenq.tech>
;;;
;;; This file is part of GNU Guix.
;;;
@@ -42,13 +43,26 @@
;;; Command-line options.
;;;
+(define %available-formats '("human" "channels" "json" "recutils"))
+
+(define (list-formats)
+ (display (G_ "The available formats are:\n"))
+ (newline)
+ (for-each (lambda (f)
+ (format #t " - ~a~%" f))
+ %available-formats))
+
(define %options
;; Specifications of the command-line options.
(list (option '(#\f "format") #t #f
(lambda (opt name arg result)
- (unless (member arg '("human" "channels" "json" "recutils"))
+ (unless (member arg %available-formats)
(leave (G_ "~a: unsupported output format~%") arg))
(alist-cons 'format (string->symbol arg) result)))
+ (option '("list-formats") #f #f
+ (lambda (opt name arg result)
+ (list-formats)
+ (exit 0)))
(option '(#\p "profile") #t #f
(lambda (opt name arg result)
(alist-cons 'profile (canonicalize-profile arg)
@@ -70,6 +84,8 @@
Display information about the channels currently in use.\n"))
(display (G_ "
-f, --format=FORMAT display information in the given FORMAT"))
+ (display (G_ "
+ --list-formats display available formats"))
(display (G_ "
-p, --profile=PROFILE display information about PROFILE"))
(newline)
Hi, Added `--list-formats` option to `guix describe` in order to improve user experience as discussed here: https://lists.nongnu.org/archive/html/guix-devel/2020-05/msg00215.html Hope it's useful. Ekaitz --- From 75f16431475fb692228f69be06baa635eb6fa5b7 Mon Sep 17 00:00:00 2001 From: Ekaitz Zarraga <ekaitz@elenq.tech> Date: Thu, 14 May 2020 17:25:03 +0200 Subject: [PATCH] guix describe: Add '--list-formats' * guix/scripts/describe.scm (%available-formats): New variable. (list-fortmats): New procedure. (%options, show-help): Add --list-formats --- guix/scripts/describe.scm | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) -- 2.26.1