[dovecot] Re: message order reversed on copying

[Timo Sirainen]

On Sun, 2003-04-06 at 22:12, Charlie Brady wrote:
> > Better fix for this comes once I add support for UIDPLUS IMAP extension.
> > That requires knowing the new UID for mail in destination mailbox, so I
> > have to update the indexes immediately, which also saves the mail order
> > permanently.
> 
> You shouldn't need to do that. All you need to do is to sort the new 
> message files (by name or by mtime - by name will be faster), before 
> processing them.

Yes, well, that does it too :)

> +  nfiles = scandir (tmp, &names, NULL, maildir_namesort);

scandir() isn't portable though. I'll just read them into array and
qsort() them. I pretty much have to do that anyway with the new scanning
code which uses (NFS-safe) .uidlist file to find out if the message
already has UID.

> As a workaround, Kimura, you can delete dovecot's .imap.* index files, and 
> the new UIDs will be sorted again - until next time.

Which changes UIDVALIDITY and forces clients to discard their cache. Not
too good idea. Pretty much the same as just disabling the index files.