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| author | Chris Marusich <cmmarusich@gmail.com> | 2016-11-01 22:48:13 -0700 |
|---|---|---|
| committer | Ludovic Courtès <ludo@gnu.org> | 2016-11-06 18:08:53 +0100 |
| commit | aff7280a0b2fabd2657923fcce62332cd5629e7b (patch) | |
| tree | a879c92e0b05e129dc3a0ef111b834854518feff | |
| parent | 45e39eee21f958a6a1445bef46a39cbe4b298cd2 (diff) | |
| download | gnu-guix-aff7280a0b2fabd2657923fcce62332cd5629e7b.tar gnu-guix-aff7280a0b2fabd2657923fcce62332cd5629e7b.tar.gz | |
system: Optionally limit the entries returned by profile-grub-entries.
* 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>
| -rw-r--r-- | guix/scripts/system.scm | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/guix/scripts/system.scm b/guix/scripts/system.scm index eee4422d68..5bc40ed735 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 |