[Dovecot] mbox folders on-disc layout

[John Robinson]

On 18/04/2012 17:45, Timo Sirainen wrote:
> On 18.4.2012, at 14.36, John Robinson wrote:
>
>> I'd like to change the on-disk layout for my mboxes from being
>>   ~/mail/foo/bar
>> to
>>   ~/mail/foo.bar
>> so that I can have folders containing both messages and subfolders, without having subfolders beginning with . and then having to do all the other fiddling with locations of index files etc. that goes along with LAYOUT=maildir++, and also leaving the filesystem layout looking sensible so my users see their mailboxes instead of the index and control files.
>>
>> Is this possible or do I need to patch something?
>
> Not possible without patching. There's also the other possibility of doing something like:
>
> # Trick mbox configuration which allows a mail folder which contains both
> # messages and sub-folders
> mail_location = mbox:~/mail/mailboxes:DIRNAME=mBoX-MeSsAgEs:INDEX=~/mail/index:CONTROL=~/mail/control
>
> from http://wiki2.dovecot.org/MboxChildFolders

Yes, I read all that, and thought all the options were pretty ugly - and 
the comment that it's a "trick" configuration would seem to suggest that 
the original author thought so to. And I think Maildir++ is pretty ugly 
too. If I wanted to try writing a new LAYOUT, where should I begin?

Cheers,

John.