git snapshots, PORTVERSION, PORTEPOCH

[Ion-Mihai Tetcu]

On Mon, 23 Feb 2009 21:18:00 -0600
"Matthew D. Fuller" <fullermd at over-yonder.net> wrote:

> On Sat, Feb 21, 2009 at 10:45:01AM +0200 I heard the voice of
> Ion-Mihai Tetcu, and lo! it spake thus:
> > 
> > Since you have the date, you can easily get the git magic string.
> 
> Not necessarily true at all, in VCS's that don't limit to single-line
> history.  Consider the case where I'm working on a feature in a
> private branch since 2000-01-01.  You take a snapshot of the trunk
> branch on 2000-02-01.  My branch is merged on 2000-03-01.
> 
> Now on 2000-04-01, somebody wants to look back and figure out which
> revision corresponds to your timestamp.  There are at least 2 paths
> through the history that could have a commit at [to any arbitrary
> granularity] the exact same date/time; there could well be more, on an
> active project.  Depending on the particular system and workflow, it
> may not even be theoretically possible to figure out which is referred
> to, short of doing full source comparisons; it can certainly be
> non-trivial in many cases.

1. Is this true in git case?
2. I wouldn't use a VCS that doesn't let me check out a version of the
sources as they were at a specific date in a given branch (including
HEAD). it's an anti-feature that negates the idea of VCS IMO.

-- 
IOnut - Un^d^dregistered ;) FreeBSD "user"
  "Intellectual Property" is   nowhere near as valuable   as "Intellect"
FreeBSD committer -> itetcu at FreeBSD.org, PGP Key ID 057E9F8B493A297B
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 196 bytes
Desc: not available
Url : http://lists.freebsd.org/pipermail/freebsd-ports/attachments/20090224/a21c4ee6/signature.pgp