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Re: resolving ambiguity in action stamps (was: Everyone, please stop mak
From: |
Eric S. Raymond |
Subject: |
Re: resolving ambiguity in action stamps (was: Everyone, please stop making my life more difficult) |
Date: |
Fri, 12 Sep 2014 16:41:12 -0400 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
Joshua Judson Rosen <address@hidden>:
> Sorry--I mostly just wasn't paying close enough attention six months ago
> to point out all of the angles of this issue...; though I *did* raise
> this "ambiguity of reference by timestamp" issue at that time--and thought
> that you'd given an ACK with a statement you were going to fix it by using
> "#{sequence-number}" suffixes to distingiush between multiple distinct
> items in the same "{ISO-date}!{email-address}" hashbucket:
>
> https://lists.gnu.org/archive/html/emacs-devel/2014-01/msg01117.html
>
> https://lists.gnu.org/archive/html/emacs-devel/2014-01/msg01113.html
>
> (that first link is your response; the second is my message--which
> included an example of why the "same timestamps, different commit-
> objects" situation might exist in a repository)
I remeber that. I thought I was going to fix it that way too.
Then I found a showstopper. Possibly it has a solution I haven't found yet.
The problem is this: suppose you have such a suffix, and several nodes
with the same date on a DAG. What's your rule for mapping suffix
to individual node?
I couldn't invent one. I believe this is mathematically equivalent to
total-ordering the DAG. Which you can't do.
--
<a href="http://www.catb.org/~esr/">Eric S. Raymond</a>
- Re: Everyone, please stop making my life more difficult, (continued)
- Re: Everyone, please stop making my life more difficult, Andreas Schwab, 2014/09/12
- Re: Everyone, please stop making my life more difficult, Eric S. Raymond, 2014/09/12
- Re: Everyone, please stop making my life more difficult, David Kastrup, 2014/09/12
- Re: Everyone, please stop making my life more difficult, Andreas Schwab, 2014/09/12
- Re: Everyone, please stop making my life more difficult, Eric S. Raymond, 2014/09/12
- Re: Everyone, please stop making my life more difficult, David Kastrup, 2014/09/12
- Re: Everyone, please stop making my life more difficult, Andreas Schwab, 2014/09/12
- Re: Everyone, please stop making my life more difficult, Eric S. Raymond, 2014/09/12
- Re: Everyone, please stop making my life more difficult, David Kastrup, 2014/09/12
- resolving ambiguity in action stamps (was: Everyone, please stop making my life more difficult), Joshua Judson Rosen, 2014/09/12
- Re: resolving ambiguity in action stamps (was: Everyone, please stop making my life more difficult),
Eric S. Raymond <=
- Re: resolving ambiguity in action stamps, Joshua Judson Rosen, 2014/09/12
- Re: resolving ambiguity in action stamps (was: Everyone, please stop making my life more difficult), Stephen J. Turnbull, 2014/09/12
- Re: resolving ambiguity in action stamps (was: Everyone, please stop making my life more difficult), Eric S. Raymond, 2014/09/13
- Re: resolving ambiguity in action stamps (was: Everyone, please stop making my life more difficult), Stephen J. Turnbull, 2014/09/13
- Re: resolving ambiguity in action stamps, Harald Hanche-Olsen, 2014/09/13
- Re: resolving ambiguity in action stamps, Eric S. Raymond, 2014/09/13
- Re: resolving ambiguity in action stamps, Yuri Khan, 2014/09/13
- Re: resolving ambiguity in action stamps, Stephen J. Turnbull, 2014/09/14
- Re: resolving ambiguity in action stamps, Eric S. Raymond, 2014/09/14
- Re: resolving ambiguity in action stamps, David Kastrup, 2014/09/14