GNU bug report logs - #36122
A second find-dired clobbers the first's buffer

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: 積丹尼 Dan Jacobson <jidanni <at> jidanni.org>
To: bug-gnu-emacs <at> gnu.org
Subject: A second find-dired clobbers the first's buffer
Date: Fri, 07 Jun 2019 08:43:46 +0800

Do find-dired on directory A.
Then do find-dired on directory B.
A second find-dired clobbers the first's buffer!
Imagine if there could only be one Dired buffer in emacs.
Well, the same goes for find-dired.

Message #8 received at 36122 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: 積丹尼 Dan Jacobson <jidanni <at> jidanni.org>
Cc: 36122 <at> debbugs.gnu.org
Subject: Re: bug#36122: A second find-dired clobbers the first's buffer
Date: Tue, 09 Jul 2019 04:07:11 +0200

積丹尼 Dan Jacobson <jidanni <at> jidanni.org> writes:

> Do find-dired on directory A.
> Then do find-dired on directory B.
> A second find-dired clobbers the first's buffer!
> Imagine if there could only be one Dired buffer in emacs.
> Well, the same goes for find-dired.

That's how the kinda related commands like M-x grep work -- if you want
more than one, you have to rename them.  So I think this works as
advertised.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

Message #15 received at 36122 <at> debbugs.gnu.org (full text, mbox):

From: Juri Linkov <juri <at> linkov.net>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: 36122 <at> debbugs.gnu.org,
 積丹尼 Dan Jacobson <jidanni <at> jidanni.org>
Subject: Re: bug#36122: A second find-dired clobbers the first's buffer
Date: Tue, 09 Jul 2019 23:18:22 +0300

>> Do find-dired on directory A.
>> Then do find-dired on directory B.
>> A second find-dired clobbers the first's buffer!
>> Imagine if there could only be one Dired buffer in emacs.
>> Well, the same goes for find-dired.
>
> That's how the kinda related commands like M-x grep work -- if you want
> more than one, you have to rename them.  So I think this works as
> advertised.

Yes, there are many ways to do this:

(add-hook 'dired-after-readin-hook 'rename-uniquely)

(add-hook 'compilation-mode-hook 'rename-uniquely)

or better

(setq compilation-buffer-name-function
      (lambda (mode-name)
        (generate-new-buffer-name
         (concat "*" (downcase mode-name) "*"))))
...

Message #18 received at 36122 <at> debbugs.gnu.org (full text, mbox):

From: Drew Adams <drew.adams <at> oracle.com>
To: Juri Linkov <juri <at> linkov.net>, Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: 36122 <at> debbugs.gnu.org,
 積丹尼 Dan Jacobson
 <jidanni <at> jidanni.org>
Subject: RE: bug#36122: A second find-dired clobbers the first's buffer
Date: Tue, 9 Jul 2019 14:12:28 -0700 (PDT)

> Yes, there are many ways to do this:
> (add-hook 'dired-after-readin-hook 'rename-uniquely)
> (add-hook 'compilation-mode-hook 'rename-uniquely)
> or better
> (setq compilation-buffer-name-function
>       (lambda (mode-name)
>         (generate-new-buffer-name
>          (concat "*" (downcase mode-name) "*"))))
> ...

Or better: Hit a key bound to `rename-buffer'.

Message #21 received at 36122 <at> debbugs.gnu.org (full text, mbox):

From: Richard Stallman <rms <at> gnu.org>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: 36122 <at> debbugs.gnu.org, jidanni <at> jidanni.org
Subject: Re: bug#36122: A second find-dired clobbers the first's buffer
Date: Tue, 09 Jul 2019 18:44:47 -0400

[[[ To any NSA and FBI agents reading my email: please consider    ]]]
[[[ whether defending the US Constitution against all enemies,     ]]]
[[[ foreign or domestic, requires you to follow Snowden's example. ]]]

  > That's how the kinda related commands like M-x grep work -- if you want
  > more than one, you have to rename them.

Could we do a better job of teaching users the technique of using M-x
rename-uniquely in cases like this?

-- 
Dr Richard Stallman
President, Free Software Foundation (https://gnu.org, https://fsf.org)
Internet Hall-of-Famer (https://internethalloffame.org)

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