GNU bug report logs -
#55163
29.0.50; master 4a1f69ebca (TICKS . HZ) for current-time broke lsp-mode
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Reported by: Vincenzo Pupillo <v.pupillo <at> gmail.com>
Date: Thu, 28 Apr 2022 10:55:01 UTC
Severity: normal
Found in version 29.0.50
Fixed in version 29.1
Done: Lars Ingebrigtsen <larsi <at> gnus.org>
Bug is archived. No further changes may be made.
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Message #82 received at 55163 <at> debbugs.gnu.org (full text, mbox):
On 4/30/22 03:00, Eli Zaretskii wrote:
> That might mean we want a primitive that returns a list of files
> sorted by modtime
Such a primitive would not be as useful. First, it's common for Emacs to
look at files opportunistically: that is, Emacs doesn't know in advance
all the files it will eventually look at, and so it can't give a
primitive a list of files in advance. Second, it's common for Emacs to
compare the timestamp of a file at time T1 with the timestamp of another
(or the same) file at a later time T2. A primitive that accepts a list
of files can't do that.
In contrast, a primitive that simply gives you a file's timestamp
handles these use cases, and is considerably easier to describe and support.
> we
> will risk adding gobs of new APIs that rarely if ever used in
> practice
Yes, we don't want to do that. However the case for making improvements
here is strong enough here that it's worth doing.
There are dozens of potential uses for the proposed (file-attributes
FILE 'mtime) etc. improvement in Emacs right now, so it's an easy call
that this API will get used.
There are also cases where the code now uses current-time and assumes
that the resulting timestamps are issued in numeric order, an assumption
that is not always true in practice. It'd be better for this code to use
a monotonic clock instead. Admittedly the resulting misbehavior is rare
(because it's rare that people adjust their machines' clocks), but Emacs
shouldn't glitch out on me merely because I've corrected my laptop's
time-of-day.
This bug report was last modified 3 years and 20 days ago.
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