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Re: resolving ambiguity in action stamps

From: Eric S. Raymond
Subject: Re: resolving ambiguity in action stamps
Date: Sat, 13 Sep 2014 06:50:58 -0400
User-agent: Mutt/1.5.21 (2010-09-15)

Harald Hanche-Olsen <address@hidden>:
> ["Stephen J. Turnbull" <address@hidden> (2014-09-13 06:57:15 UTC)]
> > The branch heads *have* canonical names: the SHA1 of the commit.
> Eek. Isn't part of the point to not rely on internals of the version
> control system? Even if the sources stay on git from now to eternity,
> git itself might abandon SHA1 at one point. It is, after all, not
> cryptographically secure. Also, branch heads move to new commits all
> the time. And branches merge. Not at all sure I understand what you
> are proposing.

Both of Harald's objections are, alas, sound.  In particular, the 
branch total ordering is not useful if any commit can arbitrarily
permute it.

The hash of the branch's *root* node would be better.  But that still 
leaves the two of the three problems unsolved.
                <a href="http://www.catb.org/~esr/";>Eric S. Raymond</a>

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