= Version Control Cache =

A redesign of the cache is needed for several reasons, among which the major ones are:
 1. '''need to adapt to MultipleRepositorySupport.''' [[br]]
    Since multiple repositories can be accessed in a given environment, 
    each of them should have the possibility to be supported by a cache.
 2. '''need to adapt to different vc backends.''' [[br]]
    Now that Trac becomes more and more used with VCS other than Subversion, 
    each backend should be able to use its own special kind of cache. 
    A reasonably common base class (or set of base classes) should be 
    nevertheless provided.
 3. '''need to adapt to non-linear changeset history backends.''' [[br]]
    The vc cache must be able to adapt to backends where each changeset
    can have multiple parents and children changesets.

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See also:  VcRefactoring