Re: git-subtree split O(N)

I am not using --rejoin. Admittedly, the documentation is somewhat opaque on its usage:

"--rejoin:: This option is only valid for the split command."

This is confusing. One would think that an option named "rejoin" has more to do with merge or pull than split. Although I guess the meaning is that you want your local changes to "rejoin" the upstream?

"...future splits can search only the part of history that has been added since the most recent --rejoin."

This sounds exactly like my use-case, I want to avoid starting from initial commit on a split, but...

"If you do all your merges with '--squash', don't use '--rejoin' when you split, because you don't want the subproject's history to be part of your project anyway."

I always use --squash with git-subtree pull, so I interpreted this to mean I should never use --rejoin.

"Unfortunately, using this option results in 'git log' showing an extra copy of every new commit that was created"

This is what discouraged me from ever touching "--rejoin"

I hope this helps

Thanks