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Re: vc.el and modified time
From: |
Rasmus |
Subject: |
Re: vc.el and modified time |
Date: |
Wed, 27 Apr 2016 19:17:15 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/25.1.50 (gnu/linux) |
Hi Stefan,
Stefan Monnier <monnier@iro.umontreal.ca> writes:
>> My first attempt is below, but I’m not entirely happy with it. First, it
>> is intrusive as it might overwrite the user’s *vc-change-log*.
>
> You can avoid hardcoding it by using
>
> (vc-call print-log file <buf> ...)
>
> See lisp/vc/vc.el's commentary where it describes
>
> ;; * print-log (files buffer &optional shortlog start-revision limit)
> ;;
> ;; Insert the revision log for FILES into BUFFER.
> ;; If SHORTLOG is true insert a short version of the log.
> ;; If LIMIT is true insert only insert LIMIT log entries. If the
> ;; backend does not support limiting the number of entries to show
> ;; it should return `limit-unsupported'.
> ;; If START-REVISION is given, then show the log starting from that
> ;; revision ("starting" in the sense of it being the _newest_
> ;; revision shown, rather than the working revision, which is normally
> ;; the case). Not all backends support this. At present, this is
> ;; only ever used with LIMIT = 1 (by
> ;; vc-annotate-show-log-revision-at-line).
Brilliant! I read that part, but I didn’t understand since the signature
of vc-print-log didn’t have a buffer argument (only the vc-backend-log
functions). Thanks for showing me how to use vc-call!
>> Second, *vc-change-log* is build asynchronously, at least sometimes,
>> and I don’t know how I can check if it’s done.
>
> You can do
>
> (with-current-buffer <buf>
> (vc-exec-after
> (lambda ()
> <the-code-to-run-after-print-log-is-done>)))
Cool, thanks!
> [ Here, I presume you're using -*- lexical-binding:t -*-, which I strongly
> recommend. ]
Yes.
Thanks for the hints!
Rasmus
--
You people at the NSA are becoming my new best friends!