Git删除所有历史提交记录，只留下最新的干净代码

git删除所有历史提交记录，只留下最新的干净代码

Checkout
```
git checkout --orphan latest_branch
```
Add all the files
```
git add -A
```
Commit the changes
```
git commit -am "commit message"
```
Delete the branch
```
git branch -D master
```
Rename the current branch to master
```
git branch -m master
```
Finally, force update your repository
```
git push -f origin master
```