Anonymise a local git repository?

Question

I have a local git repository that I've done quite a bit of work on, with a number of commits that I'd like to retain. Unfortunately, while the code is reasonable reusable, I included some sensitive data (database names/user/passwords) in a very early commit. I would like to change the entire history to anonymise the sensitive data, while retaining the general history structure. Is this possible? If so, how?

Answer 1

I think this will help:

• Remove sensitive data
• Rewriting History

Answer 2

Remove them from the repository, then commit. You then need to squash all the commits from when the files were added to when they were removed. You can see a good explanation about that here which in short suggests using git rebase -i.