It should be possible to do partial, resumable verification runs.

[GoogleCodeExporter]

Boar repositories can be arbitrarily large. At some point, it becomes 
impractical to verify the full repository. For instance, a company might want 
to verify the repository during the night, but not during work hours. Boar 
should make it possible to give the verify command a length of time and a state 
filename. Boar should then verify until the timeout and save the verify state 
periodically, so that it can be resumed.

Original issue reported on code.google.com by ekb...@gmail.com on 30 May 2012 at 9:36