GNU bug report logs - #68570
29.1; recompile might not re-use project-compile's buffer

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Message #74 received at 68570 <at> debbugs.gnu.org (full text, mbox):

From: Juri Linkov <juri <at> linkov.net>
To: Dmitry Gutov <dmitry <at> gutov.dev>
Cc: 68570 <at> debbugs.gnu.org
Subject: Re: bug#68570: 29.1; recompile might not re-use project-compile's
 buffer
Date: Thu, 02 May 2024 09:16:40 +0300

>>> We could make a new option in compile.el which would determine whether to
>>> do this in general: when non-nil, 'compilation-start' would save the
>>> current dynamic value of 'compilation-buffer-name-function', and
>>> 'recompile' would call it again.
>> A new option would be nice, but it's so broken that I don't know
>> if it helps.  For example, 'M-x compile RET' in a compilation buffer
>> doesn't prefill the minibuffer with the current compilation command,
>> but uses the default command that makes no sense.
>
> If it did so (pre-filled the command), perhaps you would just use 'M-x
> compile', in cases when you do want the new buffer to be created?
>
> But it seems to work fine to me, including in 'emacs -Q':
>
> * 'M-x compile', input 'ls', RET.
> * *compilation* buffer create.
> * 'M-x compile' again, in any window (old or new) - 'ls' is pre-filled as
>  the input.

Sorry for the delay, I tried to fix it, but it's too much broken.
Here is the test case for 'emacs -Q':
1. add such line to .dir-locals.el:
  ((nil . ((compile-command . "ls -la"))))
2. M-x compile
3. confirm that it's "ls -la" indeed
4. edit the minibuffer, replace "ls -la" with e.g. "ls" and type RET
5. in *compilation* buffer again type: M-x compile
6. the minibuffer contains "make -k "

PS: I realized now this is related to bug#70136
where Augusto posted the patch that fixes this bug.

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