[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
02/02: guix describe: Add '--list-formats'
From: |
guix-commits |
Subject: |
02/02: guix describe: Add '--list-formats' |
Date: |
Mon, 18 May 2020 09:31:30 -0400 (EDT) |
civodul pushed a commit to branch master
in repository guix.
commit 9a27d84b7a22188d3029199ad3f6dd3b8eccae70
Author: Ekaitz Zarraga <address@hidden>
AuthorDate: Sat May 16 19:57:18 2020 +0200
guix describe: Add '--list-formats'
* guix/scripts/describe.scm (%available-formats): New variable.
(list-formats): New procedure.
(%options, show-help): Add --list-formats
* doc/guix.texi: Add --list-formats
Signed-off-by: Ludovic Courtès <address@hidden>
---
doc/guix.texi | 3 +++
guix/scripts/describe.scm | 17 ++++++++++++++++-
2 files changed, 19 insertions(+), 1 deletion(-)
diff --git a/doc/guix.texi b/doc/guix.texi
index 34acc91..eef5b70 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -4471,6 +4471,9 @@ produce a list of channel specifications in JSON format;
produce a list of channel specifications in Recutils format.
@end table
+@item --list-formats
+Display available formats for @option{--format} option.
+
@item --profile=@var{profile}
@itemx -p @var{profile}
Display information about @var{profile}.
diff --git a/guix/scripts/describe.scm b/guix/scripts/describe.scm
index f13f221..7a2dbc4 100644
--- a/guix/scripts/describe.scm
+++ b/guix/scripts/describe.scm
@@ -1,6 +1,7 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2018, 2019, 2020 Ludovic Courtès <address@hidden>
;;; Copyright © 2018 Oleg Pykhalov <address@hidden>
+;;; Copyright © 2020 Ekaitz Zarraga <address@hidden>
;;;
;;; This file is part of GNU Guix.
;;;
@@ -41,14 +42,26 @@
;;;
;;; 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)
@@ -71,6 +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)
(display (G_ "