Split large Git repository into many smaller ones

Question

After successfully converting an SVN repository to Git, I now have a very large Git repository that I want to break down into multiple smaller repositories and maintain history.

So, can someone help with breaking up a repo that might look like this:

MyHugeRepo/
   .git/
   DIR_A/
   DIR_B/
   DIR_1/
   DIR_2/

Into two repositories that look like this:

MyABRepo/
   .git
   DIR_A/
   DIR_B/

My12Repo/
   .git
   DIR_1/
   DIR_2/

I've tried following directions in this previous question but it doesn't really fit when trying to put multiple directories into a separate repo (Detach (move) subdirectory into separate Git repository).

user_207036 · Answer

Although at the time of the question utunbu's answer was best you could get, these days even git itself recommends https://github.com/newren/git-filter-repo

It is orders of magnitude faster and comparatively very easy to use

For example here you would do

git clone MyHugeRepo/ MyABRepo.tmp/
cd MyABRepo.tmp
git filter-repo --path DIR_A/ --path DIR_B/

You can see more examples at https://htmlpreview.github.io/?https://github.com/newren/git-filter-repo/blob/docs/html/git-filter-repo.html#EXAMPLES

Split large Git repository into many smaller ones

6 Answers