Sometimes you accidentally commit code under the wrong author or committer credentials.  This has happened to me a few times while writing code from computers with global git settings.  By using `git filter-branch` it is possible to rewrite history… muhahahah!

This snippet will run through your branch’s historical commits and rename the author and committer attributes.

It basically looks for all commits containing a given `$OLD_EMAIL` and resets the following properties:

• GIT_AUTHOR_NAME
• GIT_AUTHOR_EMAIL
• GIT_COMMITTER_NAME
• GIT_COMMITTER_EMAIL

The code:

This code is an updated version of the “nuclear option” code provided in the ProGit book.

Finally just push:

git push --force --tags origin 'refs/heads/*'