Some scripts to help with BZR to git conversion (esp MySQL, Percona Server and Drizzle trees)
1) modify the sync-BLAH.sh script to pull from the right location. Usually you have a local mirror of the bzr trees and you may as well do initial clone from them rather than pulling everything over the internet.
2) run ./sync-BLAH.sh and wait (about 2 hours for MySQL based trees)
3) you can then change the BZR parent for the bzr trees to pull from lp if you like
4) running ./sync-BLAH.sh again will pull what's changed out of BZR and store it in git.
After the initial import, it does a git repack to get very efficient storage. Subsequent imports do not do a repack.