AW: AW: behavior of vc-recompute-state in combinationwithvc-cvs-stay-local is t

AW: AW: behavior of vc-recompute-state in combinationwithvc-cvs-stay-local is t

[klaus.berndl]

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>> But what i still do not understand, why vc-recompute-state behaves
>> different related if the repository is local or remote 8at least this
>> is the only difference i can imagine between the two testcases - see
>> my first postin, steps 4 and 3?

>For a local repository, VC does indeed call "cvs status" in
>vc-recompute-state, even if vc-cvs-stay-local is t.  This setting only
>affects remote repositories.

ah, now i understand - hmm, had just a look at the docstring of
this variable - hmm, who has eyes for reading has a big advantage ;-)


>> So, which mysterious things are done by revert-buffer so *after* it
>> vc-state returns correct 'up-to-date state but wrong 'edited state if
>> called *before* the revert-buffer???

>Function vc-state uses a cached value of the vc-state property (via
>vc-file-getprop).  This value gets recomputed in the course of
>revert-buffer, which is a sensible thing to do, I would think?

Yes, seems to be sensible... but how is this done - i took a look
at after-revert-hook, but no special entry for vc - so how VC ensures
that the cached value is recomputed by revert-buffer?




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Re: AW: AW: behavior of vc-recompute-state in combinationwithvc-cvs-stay-local is t

[Andre Spiegel]

On Tue, 2004-11-30 at 13:21 +0100, klaus.berndl@sdm.de wrote:

> >Function vc-state uses a cached value of the vc-state property (via
> >vc-file-getprop).  This value gets recomputed in the course of
> >revert-buffer, which is a sensible thing to do, I would think?
> 
> Yes, seems to be sensible... but how is this done - i took a look
> at after-revert-hook, but no special entry for vc - so how VC ensures
> that the cached value is recomputed by revert-buffer?

It happens in vc-find-file-hook, which clears all the properties.  Also,
when finding a CVS-controlled file, that immediately yields the new
value for vc-state, from CVS/Entries.

Aside: Please don't use HTML formatting when writing to emacs-devel.
Also, questions such as this are perhaps better discussed in personal
e-mail, since this is really just about understanding what the current
code does.