On Tue, Dec 17, 2019 at 10:28:36AM +0100, Steve Keller wrote:
> Is it possible to merge one Git-Repository into another?  I have
> developed two independent repositories A and B, and now I find that B
> should be part of A in new sub-directory, e.g. A/B.  I want to move B
> into A while keeping the whole development history of B.

You can accomplish this with git-subtree(1), for which IMO the intuition
of "exotic merge commit" more or less suffices.

An example (from A):

  git remote add B B_REMOTE_ADDRESS
  git subtree add --prefix B B master

-- jared