Hi all,

unfortunately, when I submitted the patch for moving single IMAP mailboxes to 
folders in august, I apparently did not test the migration process thoroughly…  
Now the following issues popped up:

(1) If an IMAP folder has a special function (like Inbox), its 
LibBalsaMailboxImap mailbox definition must be kept in the config as it is 
destroyed otherwise.

(2) Less problematic: if more than one LibBalsaMailboxImap exists on the same 
server, for each of them a new IMAP folder definition is created.  It is 
trivial to erase the extra ones, but should not happen, of course.

Attached is a quick patch (I discovered the problem only today) which does the 
following:
- Add a "Migrated" flag to LibBalsaMailboxImap folder definitions to indicate 
that we already saw them.
- In the migration process, skip all folders having this flag.  Delete only 
LibBalsaMailboxImap folders which have no special meaning.
- Also during the migration process, track the folders already being migrated (as 
"user@host") to avoid the duplicates.

This sounds pretty much like a bad hack (and probably is), but makes Balsa 
usable again with special boxes on IMAP.  And, yes, this time I ran a lot of 
tests (no valgrind, i.e. not for leaks, though)…  However, any better idea is 
highly welcome – but it could be necessary to dig deep into the logic of 
special folders.

Sorry for any problem related to this,
best,
Albrecht.

---
Patch details:
- libbalsa/mailbox.[ch]: tell libbalsa_mailbox_new_from_config() if a folder is 
special, so it is processed even if it is an IMAP one
- libbalsa/mailbox_imap.c: always set the "Migrated" flag for 
LibBalsaMailboxImap mailboxes
- src/save-restore.c: in the migration process, track "user@host" folder ids in 
a hash table to avoid duplicates; keep special IMAP folders; load folders before 
mailboxes so special IMAP mailboxes do not overwrite the folder's IMAP configs (the 
server config originates from the first server seen)

Attachment: fix_imap_special_folders.diff.bz2
Description: application/bzip

Attachment: pgpAClsfNrOBO.pgp
Description: PGP signature

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