Re: cgit, ages and chronological order

On 2021-Nov-17, at 08:40, Mark Millard <marklmi@yahoo.com> wrote:

> On 2021-Nov-17, at 01:40, Stefan Sperling <stsp@stsp.name> wrote:
> 
>> On Tue, Nov 16, 2021 at 02:32:52PM -0800, Mark Millard via freebsd-git wrote:
>>> author	George V. Neville-Neil <gnn@FreeBSD.org>	2021-11-10 17:51:42 +0000
>>> committer	George V. Neville-Neil <gnn@FreeBSD.org>	2021-11-10 18:09:19 +0000
>>> 
>>> information being based on local git commit timing (and clocks)
>>> vs. when the commits are pushed to FreeBSD servers: The display
>>> order is from the timing on the FreeBSD servers but the Age is
>>> based on the original commit (before the push). The longer the
>>> delay between commit and push, the more noticeable the
>>> distinction is.
>> 
>> This is not how Git works. If the server changed the timestamp then
>> it would also have to rewrite the commit object and change its hash.
>> Git's server will only ever store objects as they arrived on the wire.
>> 
>> Rather, both timestamps were created locally.
>> The above looks as if the author used git-rebase or similar on their own
>> commits. Some Git commands will update the committer field but leave the
>> author field as it is. These fields contain email address and timestamp.
>> 
>> Generally, sorting commits by committer timestamp will give the order
>> most people would expect. Unless some client has an unsynced clock, and
>> nothing can be done about that without a hypothetical smarter server and
>> client which support server-side rewriting of commits during push.
>> 
> 
> Try doing range searches for each of:
> 
> 8ef0c11e7ce7
> 8ef0c11e7ce7^
> 8ef0c11e7ce7^^
> 8ef0c11e7ce7^^^
> 8ef0c11e7ce7^^^^
> 
> on the main branch and note where each starts. (These
> are in the range that I showed originally.)
> 
> That is the order of the history on the branch on the
> FreeBSD server. It does not follow the Age: Age need
> not track the sequencing on the branch on the server.

Searching for each of the ranges:

8ef0c11e7ce7
8ef0c11e7ce7~1
8ef0c11e7ce7~2
8ef0c11e7ce7~3
8ef0c11e7ce7~4

gets the same results, by the way. Try it
that way if you prefer.


===
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)