GNU bug report logs - #71049
async-shell-command ends with "Process *Async Shell Command* finished" when remote "direct-async-process"

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From: Dmitry Gutov <dmitry <at> gutov.dev>
To: Michael Albinus <michael.albinus <at> gmx.de>
Cc: Eli Zaretskii <eliz <at> gnu.org>, 71049 <at> debbugs.gnu.org
Subject: bug#71049: async-shell-command ends with "Process *Async Shell Command* finished" when remote "direct-async-process"
Date: Fri, 31 May 2024 15:13:31 +0300

Hi Michael,

On 31/05/2024 10:27, Michael Albinus wrote:
>> 1) [first patch] We can add a new major mode, for 'M-&' to use instead
>> of the full-blown 'shell-mode' - it could be very simple: just apply
>> font-lock keywords and maybe set list-buffers-directory.
>>
>> Problems? I suppose someone might be using shell-mode-hook to do
>> something in the async-shell-command output buffer, and it won't fire
>> anymore. Seemingly very minor concern.
> 
> This is not only for 'M-&', but for any place asynchronous
> 'shell-command' is called. You miss a lot of settings 'shell-mode'
> applies. No idea whether people need this in async 'shell-command'.

My conclusion is they don't, but somebody who uses it more is welcome to 
argue otherwise.

>> diff --git a/lisp/net/tramp.el b/lisp/net/tramp.el
>> index 9385b023392..f0c64a7a90f 100644
>> --- a/lisp/net/tramp.el
>> +++ b/lisp/net/tramp.el
>> @@ -5247,8 +5247,8 @@ tramp-handle-shell-command
>>   	      ;; Display output.
>>   	      (with-current-buffer output-buffer
>>   		(setq mode-line-process '(":%s"))
>> -		(unless (eq major-mode 'shell-mode)
>> -		  (shell-mode))
>> +		(unless (eq major-mode 'shell-command-mode)
>> +		  (shell-command-mode))
>>   		(set-process-filter p #'comint-output-filter)
>>   		(set-process-sentinel p #'shell-command-sentinel)
>>   		(when error-file
> 
> You want to make this backward compatible, down to Emacs 27.

Sure, makes sense.

>> diff --git a/lisp/shell.el b/lisp/shell.el
>> index e6b315ee5c0..7fa84a37e83 100644
>> --- a/lisp/shell.el
>> +++ b/lisp/shell.el
>> @@ -838,6 +838,13 @@ shell-write-history-on-exit
>>         (with-current-buffer buf
>>           (insert (format "\nProcess %s %s\n" process event))))))
>>
>> +(define-derived-mode shell-command-mode comint-mode "Shell"
>> +  "Major mode for the output of `async-shell-command'."
> 
> "... of asynchronous `shell-command'."

Thank you.

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