Roll back commits (FREE)

Undo Commits

Undo last commit putting everything back into the staging area:
```
git reset --soft HEAD^
```
Add files and change message with:
```
git commit --amend -m "New Message"
```
Undo last and remove changes:
```
git reset --hard HEAD^
```
Same as last one but for two commits back:
```
git reset --hard HEAD^^
```

Don't reset after pushing

Reset Workflow

Edit file again 'edit_this_file.rb'
Check status
Add and commit with wrong message
Check log
Amend commit
Check log
Soft reset
Check log
Pull for updates
Push changes

Commands

# Change file edit_this_file.rb
git status
git commit -am "kjkfjkg"
git log
git commit --amend -m "New comment added"
git log
git reset --soft HEAD^
git log
git pull origin master
git push origin master

Note

git revert vs git reset
Reset removes the commit while revert removes the changes but leaves the commit
Revert is safer considering we can revert a revert

# Changed file
git commit -am "bug introduced"
git revert HEAD
# New commit created reverting changes
# Now we want to re apply the reverted commit
git log # take hash from the revert commit
git revert <rev commit hash>
# reverted commit is back (new commit created again)