Re: [PATCH v3] Re: [BUG] org-attach-id-ts-folder-format fails on customized IDs [9.6 (9.6-??-2e9999783)]

[Max Nikulin]

On 10/08/2022 20:23, Ihor Radchenko wrote:
> Max Nikulin writes:
>
> > > +the path."
> > > +  (if (< (length id) 3)
> > > +      (format "--/%s" id)
> >
> > Please, do not use path components starting with dash, it is terrible
> > for CLI tools. By the way, you promised underscores, not dashes.
>
> Why?

It is inconvenient in interactive sessions (in scripts appropriate 
measures must be taken anyway), the following does not list content of 
the "--" directory:

    ls -l --

> I slightly dislike the "___xx" compared to "______" because it will
> create a proliferation of top-level folders as opposed to cramping the
> non-standard IDs into a single "______" folder.

I believed that proliferation of folders is for purpose. Intermediate 
directories allows to avoid excessive number of files in single 
directory. ext4 with directory tree index usually is not the case, but 
other filesystems may have rather poor performance when too much files 
are stuffed into single folder. Some applications become really slow for 
huge directories.

On the other hand there are not so many distinct file names that may 
fall into "__" directory, so perhaps it is OK. Concerning "unknown" I am 
less sure.

I do not have strong opinion how to properly deal with short IDs.