GNU bug report logs - #21258
nnmaildir and subdirectories

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Message #3 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: submit <at> debbugs.gnu.org
Subject: nnmaildir and subdirectories
Date: Fri, 14 Aug 2015 14:52:10 -0400

Package: gnus
Version: 5.13

Using the gnus that comes with Emacs 24.5, I set:

(setq gnus-secondary-select-methods
      '((nnmaildir "" (directory "/path/to/Maildir"))))

where the contents of Maildir/ look like:

folder1/{cur,new,tmp}
folder2/{cur,new,tmp}
folder3/subfolder4/{cur,new,tmp}
folder3/subfolder5/{cur,new,tmp}

Gnus correctly presents mail from folder1 and folder2.
folder3 shows up as an empty group with no messages that can't be entered.
subfolder4 and subfolder5 aren't detected at all.

I suppose I can fudge it by

1) using symlinks at the top-level, eg
folder3-subfolder4 -> folder3/subfolder4

2) tweaking nnmaildir's directory-files parameter so that directories
like "folder3" that only contain subfolders aren't presented as groups.

But it would be nice if Gnus just handled subdirectories out-of-the-box.

Message #6 received at 21258 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Glenn Morris <rgm <at> gnu.org>
Cc: 21258 <at> debbugs.gnu.org
Subject: Re: bug#21258: nnmaildir and subdirectories
Date: Thu, 26 Jan 2017 22:17:50 +0100

Glenn Morris <rgm <at> gnu.org> writes:

> I suppose I can fudge it by
>
> 1) using symlinks at the top-level, eg
> folder3-subfolder4 -> folder3/subfolder4
>
> 2) tweaking nnmaildir's directory-files parameter so that directories
> like "folder3" that only contain subfolders aren't presented as groups.
>
> But it would be nice if Gnus just handled subdirectories out-of-the-box.

I'm not familiar with the nnmaildir code at all, but wouldn't nnmaildir
have to stat a whole lot of files if it were to find all possible
directories?  And "maildir" is a specific format specified by
maildir(5).  (Which I haven't read, either.  :-))

So my guess is that this wouldn't be a good idea.  It sounds like you
want nnmh or nnml, not nnmaildir, really...

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

Message #15 received at 21258 <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: 21258 <at> debbugs.gnu.org
Subject: Re: bug#21258: nnmaildir and subdirectories
Date: Mon, 30 Jan 2017 17:37:54 -0500

Lars Ingebrigtsen wrote:

>> But it would be nice if Gnus just handled subdirectories out-of-the-box.
>
> I'm not familiar with the nnmaildir code at all, but wouldn't nnmaildir
> have to stat a whole lot of files if it were to find all possible
> directories?

I don't see why it should make a big difference to the performance, but
if there's no-one who wants to work on Maildir, it's all theoretical.

> So my guess is that this wouldn't be a good idea.  It sounds like you
> want nnmh or nnml, not nnmaildir, really...

I need Maildir because it is a standard format used by offlineimap,
mbsync, mu4e, etc. Some other (Gnus-specific?) format isn't an option.

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