Re: git and time

From: Linus Torvalds <torvalds@osdl.org>
Date: Sep 27, 2006, 21:48 UTC
Message-ID: <Pine.LNX.4.64.0609271446160.3952@g5.osdl.org>
In-Reply-To: <20060927214417.36420.qmail@web51002.mail.yahoo.com>

On Wed, 27 Sep 2006, Matthew L Foster wrote:

Show 6 quoted lines

> > When did the merge happen? It happened at 8:30 on my machine, and that's 
> > what is recorded. End of story. No ifs, buts, maybes about it. That's the 
> > only time you can _ever_ see for that merge.
> 
> Ok, so it's more complex because of the workflow issue of delayed/pseudo mirroring/replication
> between private and public repos? This cloning/replication is not done through git?

No, it very much happened with git.

But git will _refuse_ to rewrite history. That means that if a commit says it happened at 8:30AM on machine X, git will _not_ rewrite history to say that it happened at 9:30AM on machine Y just because that's when it made it to that machine.

> Are you saying it's impossible for master.kernel.org's git to track the 
> local time of each commit/merge/replication?

No, I'm saying that that would be _lying_.

The actual action happened at 8:30. And git tracks only truth. It doesn't rewrite the truth afterwards.

		Linus