I think the main tools for manipulating fastimport/fastexport files are available in the Git community. bzr-fastimport also has some (see "bzr help commands" and look for 'fastimport'), but they're probably not as well-polished.
I think the main tools for manipulating fastimport/ fastexport files are available in the Git community. bzr-fastimport also has some (see "bzr help commands" and look for 'fastimport'), but they're probably not as well-polished.