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Re: [jgit-dev] creating a new branch fails with LOCK_FAILURE
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On Wed, Jan 4, 2012 at 10:19, <james.moger@xxxxxxxxxxx> wrote:
>>>> u.setExpectedOldObjectId(ObjectId.zeroId());
>
>>I.e do not call setExpectedOldObjectId() at all to create the
>>branch regardless of whether it is new or not.
>
> For my previous question on how to create an orphan branch I had tried
> that approach:
> u.setExpectedOldObjectId(ObjectId.zeroId());
> That seemed logical to me, but it didn't work.
>
> I'm still wondering if there is a way to create an orphan branch with
> the JGit API... that would be very useful.
>From the API package, maybe not.
Creating an orphan branch is about building a commit with no parents,
and then setting some branch to point to that commit. The latter can
be done easily with any RefUpdate command, either create a new branch,
or force update an existing branch to the new commit's ObjectId.
Creating a new commit with no parents probably requires using the
CommitBuilder class directly. The CommitCommand only supports HEAD and
creates a new commit on top of that.
You may be able to relink HEAD to a non-existant branch name, then run
CommitCommand to make an orphan branch.
