Junio C Hamano <gitster@xxxxxxxxx> writes:
> --topo-order::
> -
> - This option makes them appear in topological order (i.e.
> - descendant commits are shown before their parents).
> + This option makes them appear in topological order. Even
> + without this option, descendant commits are shown before
> + their parents, but this tries to avoid showing commits on
> + multiple lines of history intermixed.
I don't think that is true in general. Without any -order options, we
process commits in date order, which *usually* means topological order,
but not always. You can easily verify this:
$ git init
$ date
Tue Aug 14 10:39:49 CEST 2012
$ echo initial >file
$ git add file
$ GIT_COMMITTER_DATE="Tue Aug 14 11:39:49 2012" git commit
$ echo foo >file
$ git commit -mfoo file
$ git checkout -bside HEAD^
$ echo bar >file
$ git commit -mbar file
$ git log --all --oneline
8c71325 bar
e5072d7 initial
1be702c foo
So the --topo-order switch *ensures* that we process commits in
topological order even in the face of skewed clocks.
I suspect that
> + their parents, but this tries to avoid showing commits on
> + multiple lines of history intermixed.
is just a fortunate side effect of the topological sort.
--
Thomas Rast
trast@{inf,student}.ethz.ch
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