@need 3200

@node The Pristine Revision Cache
@chapter The Pristine Revision Cache

@geindex pristine revision cache

@geindex cache, pristine revision



Each project tree contains a cache of @geindex pristine
@dfn{pristine} revisions: revisions
extracted from an archive and stored without modifications.  This
cache is used to speed up operations such as @code{commit}.


It is occasionally useful to know what revisions are cached in a given
tree, and to add or remove cached revisions.  


@emph{commands to doccument}

@example
@group
        % larch pristines --help
@end group
@group
@end group
@end example
@example
@group
        % larch add-pristine --help
@end group
@group
@end group
@end example
@example
@group
        % larch delete-pristine --help
@end group
@group
@end group
@end example



