Steps to cleanup old version data from a github repository, brute force

Clean github history

Here's the brute-force approach. It also removes the configuration of the repo.
You need to save first the gitignore


Step 1: remove all history

rm -rf .git

Step 2: reconstruct the Git repo with only the current content

git init
git add .
git commit -m "Initial commit"


Step 3: push to GitHub.

git remote add origin <github-uri>
git push -u --force origin master