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bug#36830: 26.2; find-file-visit-truename is not honored as file local v
bug#36830: 26.2; find-file-visit-truename is not honored as file local variable
Sun, 25 Aug 2019 07:39:29 +0200
Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux)
Eli Zaretskii <address@hidden> writes:
> I don't think this variable was designed to be set from file-local
> variables block. Visiting a file and naming its buffer are two racy
> actions, and where there's a race there will be chicken-and-egg type
> of problems.
> I expect such renaming to cause future bugs, FWIW. Or maybe not, but
> this is beyond hacky, IMO.
Yes, I think so, too, but:
> Maybe we should just document that this variable cannot be file-local.
files.el has this:
(put 'find-file-visit-truename 'safe-local-variable 'booleanp)
It was changed to booleanp in 2007 (from the presumably invalid
`boolean'), so it didn't work before 2007 for that reason, and it hasn't
worked after 2007 because it's checked too late.
So perhaps the fix here is to just remove that `put'?
On the other hand, it would be nice if it worked, because it seems like
a pretty useful thing to be able to customise on a per-file basis.
(domestic pets only, the antidote for overdose, milk.)
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