From mboxrd@z Thu Jan 1 00:00:00 1970 From: cmmarusich@gmail.com Subject: [PATCH 3/5] system: Optionally limit the entries returned by profile-grub-entries. Date: Tue, 1 Nov 2016 22:48:13 -0700 Message-ID: <20161102054815.11253-4-cmmarusich@gmail.com> References: <87d1ihscmr.fsf@gnu.org> <20161102054815.11253-1-cmmarusich@gmail.com> Return-path: Received: from eggs.gnu.org ([2001:4830:134:3::10]:42164) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1c1oPZ-0007El-0i for guix-devel@gnu.org; Wed, 02 Nov 2016 01:48:34 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1c1oPX-0002KO-Vm for guix-devel@gnu.org; Wed, 02 Nov 2016 01:48:33 -0400 Received: from mail-pf0-x243.google.com ([2607:f8b0:400e:c00::243]:35653) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1c1oPX-0002Jw-Pr for guix-devel@gnu.org; Wed, 02 Nov 2016 01:48:31 -0400 Received: by mail-pf0-x243.google.com with SMTP id i88so735150pfk.2 for ; Tue, 01 Nov 2016 22:48:31 -0700 (PDT) In-Reply-To: <20161102054815.11253-1-cmmarusich@gmail.com> List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org Sender: "Guix-devel" To: guix-devel@gnu.org From: Chris Marusich * guix/scripts/system.scm (profile-grub-entries): Add an optional parameter which allows the caller to limit the number of returned grub entries. --- 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 eee4422..5bc40ed 100644 --- a/guix/scripts/system.scm +++ b/guix/scripts/system.scm @@ -366,8 +366,10 @@ it atomically, and then run OS's activation script." (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 @@ it atomically, and then run OS's activation script." 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 -- 2.9.2