[PATCH] Combine duplicate IMAP INBOX nodes

[Peter Bloomfield <bloomfld eos ncsu edu>]

On 2001.06.20 18:56 Peter Bloomfield wrote:
> Balsa-1.1.6 puts two INBOX nodes in the IMAP tree (at least for my Cyrus
> server). This results from the way libmutt's imap_browse() handles
> namespaces. The attached patch (against version 1.1.6) eliminates the
> duplication.

This patch, against this morning's CVS tree, does the same thing. (It also
allows rescannning IMAP subfolders from the context menu.)

- add_imap_entry now looks for a node with the given path, and creates one
only if one doesn't exist.
- add_imap_mailbox gets a node from add_imap_entry, and adds a mailbox only
if it doesn't already have one. 
- add_imap_folder just gets a node from add_imap_entry, and returns it
regardless of whether it has a mailbox.
This strategy should take care of multiple folders, regardless of whether
they are first seen as folders or mailboxes.

Comments and suggestions welcome, as always!