Full-Text-Search for Dovecot mailbox with Hyper Estraier
dovecot-est-gatherer /path/to/casket /path/to/dovecot-uidlist ...
Shell script dovecot-est-gatherer doesn't scan directories by itself, but reads dovecot-uidlist to get IMAP UID / filename mapping. Current version may fail to get some of mailfiles, because suffixes of file names, they stand for flags, are reflected to dovecot-uidlist asynchronously.
Core part to build index is done by estcmd gather -fm.
IMAP UIDs are embeded into the index as the field imap-uid.