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Re: Everyone, please stop making my life more difficult

From: Sam Steingold
Subject: Re: Everyone, please stop making my life more difficult
Date: Fri, 12 Sep 2014 11:21:21 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.4.50 (darwin)

> * David Kastrup <address@hidden> [2014-09-12 16:36:59 +0200]:
> Sam Steingold <address@hidden> writes:
>>> * Andreas Schwab <address@hidden> [2014-09-12 13:47:44 +0200]:
>>> "Eric S. Raymond" <address@hidden> writes:
>>>> This choice helps avoid collisions.  It is unlikely that one
>>>> committer will ever manage two commits in the same clock second.
>>> That's pretty easy if you are rebasing.
>> Are you saying that rebasing changes the timestamp?!
> The commit timestamp?  Most certainly.
>> I.e., I make a commit X today and tomorrow rebase (= remove X; pull from
>> upstream; reapply X) it.
>> Is X now dated today or tomorrow?
>> If the answer is "tomorrow", this looks like a bug.
> If the commit timestamp were anything but "tomorrow" it would be a
> bug.  The whole point of a commit timestamp is to track who created a
> commit when.  Since a rebase creates commits, obviously the commit
> timestamp will correspond to the time of the rebase, and the commit
> author will correspond to the person doing the rebase.

I thought that rebase _moves_ commits, not _creates_ them anew.
Just like "mv" does not change ctime of a file,
rebase must not change the commit time.

Sam Steingold (http://sds.podval.org/) on darwin Ns 10.3.1265
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