Squash my last X commits together using Git

Question

How can I squash my last X commits together into one commit using Git?

Answer 1

What about an answer for the question related to a workflow like this?

1. many local commits, mixed with multiple merges FROM master,
2. finally a push to remote,
3. PR and merge TO master by reviewer. (Yes, it would be easier for the developer to merge --squash after the PR, but the team thought that would slow down the process.)

I haven't seen a workflow like that on this page. (That may be my eyes.) If I understand rebase correctly, multiple merges would require multiple conflict resolutions. I do NOT want even to think about that!

So, this seems to work for us.

1. git pull master
2. git checkout -b new-branch
3. git checkout -b new-branch-temp
4. edit and commit a lot locally, merge master regularly
5. git checkout new-branch
6. git merge --squash new-branch-temp // puts all changes in stage
7. git commit 'one message to rule them all'
8. git push
9. Reviewer does PR and merges to master.