bug#64531: [PATCH v2] Add new command vc-dir-copy-filename-as-kill

[Dmitry Gutov <dgutov@yandex.ru>]

On 20/08/2023 09:26, Eli Zaretskii wrote:
>> Date: Sun, 20 Aug 2023 02:33:59 +0300
>> Cc: 64531@debbugs.gnu.org
>> From: Dmitry Gutov <dgutov@yandex.ru>
>>
>> The difference from dired-copy-filename-as-kill in handing of the prefix
>> argument looks unfortunate (as a principle), but I'd rather leave it for
>> you to judge. Perhaps changing the latter command's interface would be a
>> better choice; I'm not sure why it works that way.
> 
> What difference is that?  I must be missing something, since it sounds
> like both commands use the argument to select absolute or relative
> file names?

One of them mandates M-0 for that effect.

>> Implementation difference: instead of going through (format "%S"), this
>> one uses shell-quote-argument. Is that good enough for Windows systems?
> 
> It depends on how the result will be used.  But maybe we should do the
> same as dired-copy-filename-as-kill, just for consistency of the UX?

Maybe.

I imagine it might be used in a shell, but indeed there are different 
options.

>> And one more difference which we might want to see fixed:
>>
>>     (When there's a single file, no quoting is done.)
>>
>> It seems like, at least, in some usage scenarios users would prefer to
>> have copied filename not quoted. E.g. for subsequent use with find-file
>> or... something similar. I don't really use this command all that much,
>> so maybe I'm mistaken here, though.
> 
> There will always be cases when quoting gets in the way, but hopefully
> they are rare.  The important thing, IMO, is that quoting is useful
> for many/most uses of the file names in VC commands.  Is it?

When using 'M-!'? Maybe. I think consistency between 'w' commands is 
somewhat important, though.