GNU bug report logs - #40670
28.0.50; Regression: vc-print-log doesn't work with TRAMP because vc-git isn't initialized

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From: Michael Albinus <michael.albinus <at> gmx.de>
To: Dima Kogan <dima <at> secretsauce.net>
Cc: 40670 <at> debbugs.gnu.org
Subject: bug#40670: 28.0.50; Regression: vc-print-log doesn't work with TRAMP because vc-git isn't initialized
Date: Tue, 21 Apr 2020 13:35:38 +0200

Michael Albinus <michael.albinus <at> gmx.de> writes:

Hi Dima,

>> The problem:
>>
>> 1. emacs -Q
>>
>> 2. C-x C-f /ssh:host:file
>>
>>    Open any file that lives in a git repo on a remote server
>>
>> 3. C-x v l
>>
>>    I expect to see the git log for this file, but I get an error: "File
>>    is not under version control". The modeline doesn't show that emacs
>>    recognized this as a git file. Also, the only "vc-git-..." function
>>    that emacs knows about at this point is vc-git-registered. Clearly
>>    something was supposed to initialize vc-git but that didn't happen.
>>    As a workaround I CAN do:
>>
>> 4. C-x v L
>>
>>    This does work to show me the git history of this whole project. This
>>    loaded vc-git, so I can now go back to the earlier buffer, and C-x v
>>    l works now
>
> Thanks for the report. I've applied git bisect. Looks like commit
> 76b3bd8cbb9a0a01941d9c1766c054960e4bfd97 (Improve Tramp cache for
> asynchronous processes) has broken Emacs here.
>
> Since I'm the author of that patch, I'll debug. Will report later.

It was a little bit tricky to understand, but I believe I've fixed it
now with commit f212daf0a96999b8c1e63217c22a86d6e1671687. Could you,
pls, check?

>> Thanks!

Best regards, Michael.

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