GNU bug report logs - #35367
26.2; `dired-copy-how-to-fn' and HOW-TO arg of `dired-create-files'

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Message #26 received at 35367 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Mike Kupfer <mkupfer <at> alum.berkeley.edu>
Cc: 35367 <at> debbugs.gnu.org, Drew Adams <drew.adams <at> oracle.com>
Subject: Re: bug#35367: 26.2; `dired-copy-how-to-fn' and HOW-TO arg of
 `dired-create-files'
Date: Sat, 22 Jan 2022 15:43:35 +0100

Mike Kupfer <mkupfer <at> alum.berkeley.edu> writes:

> The bit about
>
>    If it return value is a list, TARGET is a generalized
>     directory (e.g. some sort of archive).  The first element of
>     this list must be a function with at least four arguments:
>
> looks like it might be useful when the target is, for example, a tar
> file.  By default, copying a single file would replace the tar file.
> But this could be overridden (I think) to add or replace entries in the
> tar file.

I've now added something like this to the doc string in Emacs 29, and
that should hopefully clarify the use case slightly.

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

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