From aff7280a0b2fabd2657923fcce62332cd5629e7b Mon Sep 17 00:00:00 2001
From: Chris Marusich <cmmarusich@gmail.com>
Date: Tue, 1 Nov 2016 22:48:13 -0700
Subject: [PATCH] system: Optionally limit the entries returned by
profile-grub-entries.
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* guix/scripts/system.scm (profile-grub-entries): Add an optional parameter
which allows the caller to limit the number of returned grub entries.
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
---
guix/scripts/system.scm | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/guix/scripts/system.scm b/guix/scripts/system.scm
index eee4422d689..5bc40ed7350 100644
--- a/guix/scripts/system.scm
+++ b/guix/scripts/system.scm
@@ -366,8 +366,10 @@ (define (seconds->string seconds)
(date->string (time-utc->date time)
"~Y-~m-~d ~H:~M")))
-(define* (profile-grub-entries #:optional (profile %system-profile))
- "Return a list of 'menu-entry' for the generations of PROFILE."
+(define* (profile-grub-entries #:optional (profile %system-profile)
+ (numbers (generation-numbers profile)))
+ "Return a list of 'menu-entry' for the generations of PROFILE specified by
+NUMBERS, which is a list of generation numbers."
(define (system->grub-entry system number time)
(unless-file-not-found
(let* ((file (string-append system "/parameters"))
@@ -395,8 +397,7 @@ (define (system->grub-entry system number time)
kernel-arguments))
(initrd initrd)))))
- (let* ((numbers (generation-numbers profile))
- (systems (map (cut generation-file-name profile <>)
+ (let* ((systems (map (cut generation-file-name profile <>)
numbers))
(times (map (lambda (system)
(unless-file-not-found
--
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