Re: git p4: any way to avoid rebasing all the time?

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On Wed, Apr 11, 2012 at 5:27 PM, Luke Diamand <luke@xxxxxxxxxxx> wrote:
> Is there a way to get "git p4" to not rebase all the time?
>
> Right now, git commits get discarded and replaced with new ones with
> the same contents and extra git-p4 metadata embedded in the comment.
>
> If we put this git-p4 metadata into a git note then we would not need
> to rewrite the commits, and so could perhaps avoid rebasing quite so
> much.
>
> However, if "git p4" won't rewrite commits, then it can't reorder them
> to match the ordering seen from p4.
>
> So you could end up with git users seeing OLDHEAD,G,P and p4 users
> seeing OLDHEAD,P,G, as there's a race to see who submits against
> OLDHEAD first, which p4 always wins.
>
> Would this matter (assuming the git and p4 commits are all reasonably
> independent) or is there a way to avoid it?
>
> Perhaps hook into the pre-receive hook? If the newest p4 changelist is
> not the same as the HEAD of the branch being pushed to, then reject
> the push, just as would happen if the branch could not be
> fast-forwarded in a normal git repo? (Even with this there is still a
> small window of opportunity).
>
> At that point, the "git p4 rebase" command would still be used, but
> would normally be a no-op.
>
> Or would that result in something far too complicated to have any
> chance of working?
>
> Thanks,
> Luke

Hi Luke,

This guy modified git-p4 to store information in notes:

https://github.com/ermshiperete/git-p4

Could you see if his implementation would fit your requirements?

Vitor
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