Re: git rebase syntax question

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On Fri, Aug 11, 2006 at 01:12:16PM -0500, Steve French wrote:

> The git repository is cloned from 
> /pub/scm/linux/kernel/git/torvalds/linux-2.6.git and has one branch and 
> history like
>         ...->A->MyCommits->B->MoreOfMyCommits->C->EmptyMergeMessages
> and I want to make my master look like
>         ...->A->B->C->MyCommits->MoreOfMyCommits

Since A, B, and C are from upstream, they should still be linked
directly together. So your history is probably more like this:
    MyCommits--Merge--MoreOfMyCommits--EmptyMergeMessage
   /          /                       /
  A----------B-----------------------C

> I tried doing the obvious
>    "git rebase master"
> but that appears to be a no op

You are already merged with master, so rebase doesn't think there is
anything to do. You will have to rebase each of your merged segments
onto a new rebase branch:
  # Go back to just before the first merge...
  $ git-branch commits1 Merge^
  # And add all of C..commits1 on top of C
  $ git-rebase C commits1
  # Now we go back for the second merge...
  $ git-branch commits2 EmptyMergeMessage^
  # And add all of that on top of our previous work
  $ git-rebase commits1 commits2
  # At this point commits2 has A->B->C->MyCommits->MoreOfMyCommits.
  # Now we can clean things up, making master the new desired branch.
  $ git-checkout master
  $ git-reset --hard commits2
  $ git-branch -d commits1 commits2
  $ git-prune

I'm not sure if there's a simpler way to do it. Obviously if you do the
rebase as you go along (instead of merging) it's much easier.

-Peff
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