Re: git vs hg commit counts?

From: Jakub Narebski
Date: Mon Oct 26 2009 - 21:14:55 EST


Joe Perches <joe@xxxxxxxxxxx> writes:

> I'm comparing linux-kernel git vs hg repositories.
>
> While testing some changes to scripts/get_maintainer.pl,
> I noticed that git and hg have different commit counts
> for the same files.
>
> For instance:
>
> $ git log --since=1-year-ago -- MAINTAINERS | \
> grep -P "^commit [0-9a-f]{40,40}$" | wc -l
> 514
>
> $ hg log --template="commit {node}\n" --date -365 -- MAINTAINERS | \
> grep -P "^commit [0-9a-f]{40,40}$" | wc -l
> 601
>
> Anyone have any understanding why?

It *might* be caused by the fact that in Mercurial commit can have
only up to two parents. This means that octopus merges (merge commits
with more than two parents: there are a few of them in linux-kernel
history) have to be represented as a set of two-parent merges.

--
Jakub Narebski

http://stackoverflow.com/questions/1598759/git-and-mercurial-compare-and-contrast/1599930#1599930
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