[RFC] deprecate mutable inventories

[Robert Collins]

On Tue, 2006-09-12 at 09:54 -0500, John Arbash Meinel wrote:
> 
> Because dirstate is also the hashcache. We can just make it flexible
> about if a kind changes, the dirstate is updated. You still need to
> stat
> the filesystem, but if the packed stat matches, you don't need to do
> any
> more work, rather than just returning the dirstate record. 

Right, where we have data that the fs knows, its because we want to
access it often and its not trivially cheap to recalculate, but we can
check the stat blob for differences and avoid recalculating.

-Rob
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