Re: commit/from command in git-fast-import

From: David Barr <davidbarr@google.com>
Date: Jan 27, 2012, 14:00 UTC
Message-ID: <CAFfmPPPYc=9BdwuE+ANiHKrFk+_7aXDgnMv3fHxVmF0ttZu8bA@mail.gmail.com>
In-Reply-To: <20120127124837.GA24084@glandium.org>

On Fri, Jan 27, 2012 at 11:48 PM, Mike Hommey <mh@glandium.org> wrote:

Show 16 quoted lines

> When I do create a commit on a given branch with a stream like:
>  commit refs/heads/branch
>  author ...
>  committer ...
>  data <<EOF
>  Commit message
>  EOF
>  deleteall
>
> All I get is this warning:
>  warning: Not updating refs/heads/branch (new tip new_sha1
> does not contain old_sha1)
>
> And the branch only has one commit, which is the one I just created.
> On the other hand, if I add a "from" instruction in the above stream,
> I have the expected branch history.

This is precisely the expected behavior. If 'from' is omitted, the resulting commit has no preceding history. On the other hand, what you want is to specify the parent so that there is a continuation of history.

I hope this helps. -- David Barr