GNU bug report logs - #27456
25.2; Not possible to use -prune with find-dired

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Allen Li <darkfeline <at> felesatra.moe>
Subject: bug#27456: closed (Re: bug#27456: 25.2; Not possible to use
 -prune with find-dired)
Date: Sun, 09 Sep 2018 02:40:02 +0000

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Your bug report

#27456: 25.2; Not possible to use -prune with find-dired

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 27456 <at> debbugs.gnu.org.

-- 
27456: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=27456
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Michael Heerdegen <michael_heerdegen <at> web.de>
To: Allen Li <darkfeline <at> felesatra.moe>
Cc: 27456-done <at> debbugs.gnu.org
Subject: Re: bug#27456: 25.2; Not possible to use -prune with find-dired
Date: Sun, 09 Sep 2018 04:39:05 +0200

Allen Li <darkfeline <at> felesatra.moe> writes:

> I think we can close this.  The comma operator suggested by Andreas is
> the right solution.

Ok, fine - closing.


Michael.

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From: Allen Li <darkfeline <at> felesatra.moe>
To: bug-gnu-emacs <at> gnu.org
Subject: 25.2; Not possible to use -prune with find-dired
Date: Thu, 22 Jun 2017 23:00:48 -0700

It is not possible to effectively use the -prune action with find-dired.

With plain find, -prune would be used like:

    find . -name "foo*" -prune -o -name "*.el" -ls

However, find-dired wraps everything:

    (find-dired "." "-name \\"foo*\\" -prune -o -name \\"*.el\\" -ls")

results in the equivalent call:

    find . \( -name "foo*" -prune -o -name "*.el" -ls \) -ls

Notably, this will list files matching foo*

Unfortunately, I'm not sure if there are any easy remedies.  Perhaps
find-dired should refrain from appending -ls if ARGS already contains
-ls.

In GNU Emacs 25.2.1 (x86_64-unknown-linux-gnu, GTK+ Version 3.22.10)

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