How do you merge two Git repositories?

Question

Consider the following scenario:

I have developed a small experimental project A in its own Git repo. It has now matured, and I\'d like A to be part of larger projec

Answer 1

If both repositories have same kind of files (like two Rails repositories for different projects), you can fetch data of the secondary repository to your current repository:

git fetch git://repository.url/repo.git master:branch_name

and then merge it to current repository:

git merge --allow-unrelated-histories branch_name

If your Git version is smaller than 2.9, remove --allow-unrelated-histories.

After this, conflicts may occur. You can resolve them for example with git mergetool. kdiff3 can be used solely with keyboard, so 5 conflict file takes when reading the code just few minutes.

Remember to finish the merge:

git commit