Help with importing from MailMate with tags

DEVONthink Tips
1

I wrote a variation on the MailMate bundle for DEVONthink based on the discussion here (Adding email with IMAP flags (keywords / tags)). The relevant AppleScript code is:

tell application id "DNtp"
set theRecord to import "{tmpfile}" from "MailMate" name "{name}"
set modification date of theRecord to creation date of theRecord
set tags of theRecord to "{MM_TAGS}" set the URL of theRecord to "{url}" # Allows it to be opened in MailMate using ⌃⌘O
display notification "Added message "${name}" with tags to DEVONthink" with title "MailMate"
end tell

My questions are:

  1. I don’t want to end up with a bunch of duplicates. How can I prevent this?
  2. Also, what is the definition of a duplicate in this context? If a message is already in the database and has no tags and I import it again, but with a tag this time, is that a duplicate? In that case, the preferred behavior would be to replace the existing tagless message with the new tagged one. This is not a hard requirement since it is likely to occur mostly during the transition from the current state to the use of my updated bundle.
    Thanks for any help you might give.
2
  1. Duplicate and modify the built-in Filter Duplicates smart rule to point at the email group/database and add the On Import event trigger to it.
  2. A duplicate is just that, a copy of something. Tags have nothing to do with it.