GNU bug report logs - #76792
[PATCH] dired-copy-filename-as-kill to support project relative names

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From: Stefan Kangas <stefankangas <at> gmail.com>
To: Dmitry Gutov <dmitry <at> gutov.dev>, Eli Zaretskii <eliz <at> gnu.org>
Cc: 76792 <at> debbugs.gnu.org
Subject: bug#76792: [PATCH] dired-copy-filename-as-kill to support project relative names
Date: Fri, 7 Mar 2025 08:20:25 -0800

Dmitry Gutov <dmitry <at> gutov.dev> writes:

> On 07/03/2025 09:06, Eli Zaretskii wrote:
>> Using 1 as the prefix arg which means files are relative to project
>> root seems inconsistent with the meaning of zero argument.
>
> Is it really? We have 0 which means "absolute name" and we have 'C-u'
> (which often translates to 4) which means "only base name".
>
> The project-relative name sits somewhere in the middle (when judging by
> length, for example) so 1 seems fitting.
>
>> So I would
>> suggest to use "C-u C-u" for the new meaning.  It is not harder to
>> type, and it is more mentally similar to "just C-u".
>
> I could agree to 'C-u C-u' as well, but it does seem like a longer
> sequence requiring two hands (while '1' sits very close to 'w' and would
> be typed with one hand).

FWIW, on some keyboard layouts, e.g. Dvorak which I have here, this
doesn't hold.  :-)

> Semantically as well the new behavior doesn't
> seem like an advanced version of the current 'C-u' behavior.
>
> But if the majority prefers 'C-u C-u', I won't argue.

Hmm, `dired-copy-filename-as-kill` with prefix 1 copies one file, with
prefix 2 copies two, with 3 copies three, and so on.

Do we care to keep this behavior?

If so, I think 1 is the only prefix left that makes sense.  That gives
us:

    0   copy absolute file name
    1   copy project file name
    2   copy 2 files
    ...
    7   copy 7 files
    8   copy 8 files
    9   copy 9 files

With C-u C-u, we get this instead:

    0   copy absolute file name
    1   copy 1 file [ NB. same as with no prefix ]
    2   copy 2 files
    ...
    7   copy 7 files
    8   copy project file name
    9   copy 9 files

That means we have no way of copying 8 file names, I think, and two ways
to copy just 1.

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