[E-Lang] cap-based design question

[Jonathan S. Shapiro]

> I will admit that I don't know why CVS ties itself in this particular
knot.
> It seems to me that the issue of avoiding redundant downloads is quite
> separate from the issues of authority, and could be addressed with the use
> of hashes.  If we know the hashes of each version of each file in the
> repository, and the hashes of the versions that the user has, we can avoid
> redundant downloads.  The issue of two files with the same contents can be
> addressed by copying on the client side.

It can indeed be so handled, and PCMS does so, but this is orthogonal to the
question of whether the identity of an object should include the identity of
the authorization under which it was obtained.

We're cleaning up the PCMS design paper now. I hope to make it available
online shortly.

shap