git删除所有commit

有时github在commit历史记录里会留下密码、用户信息等敏感记录，可以参照下边的方法删除历史记录。

1.Checkout

   git checkout --orphan latest_branch

2. Add all the files

   git add -A

3. Commit the changes

   git commit -am "commit message"


4. Delete the branch

   git branch -D master

5.Rename the current branch to master

   git branch -m master

6.Finally, force update your repository

   git push -f origin master