Splitting a repo

repo_split.md

Splitting a repo

Here is a recepie for how to split a repo.

If you have a repo that you want to split in twine, life can be simple! At least if you have been a good boy and kept the different parts in different subdirectories to begin with…

This is all you have to do:

1. Make a copy of the original repo.

2. Run git rebase -i --root and copy all the lines into history.log

3. Then run

   git log --pretty='%h' ./some_path > drop.log
   for commit in $(cat ./drop.log); do sed -i "s/pick \(${commit}\)/drop \1/" ./history.log; done

4. Then simply run git rebase -i --root again and replace all the lines with the contents of history.log

5. Lastly, set the origin remote to the new repo URL:

   git remote set-url origin https://git.example.com/foo/bar.git
   git fetch
   git push

https://youtu.be/M7FIvfx5J10