HOW-TO:Update a pull request to an official addon repository on GitHub
A pull request (PR) to an official addon repository (for scripts, plugins or other) on GitHub must have exactly one commit. This is necessary to keep clean commit history in the repo with each commit representing a single addon addition or update. However, you may be asked to make some changes into your PR before it will be submitted. But any further updates will create new commits that you will need to squash into one. This is how to do it in the most simple way:
1. Make all necessary changes in your addon PR.
2. Commit your changes to the PR branch using the following commands:
git add . git commit -a --fixup=HEAD
This will create a new "fixup" commit with the title like in your initial commit but with "fixup!" prefix.
3. Start interactive git rebase:
git git rebase -i --autosquash HEAD~2
This command will open a text editor (vim) where you need to edit your commit history. But because you have made a "fixup" commit on the previous step, you don't really need to edit anything, so proceed to the next step.
ESC to enter a command mode in the editor, type the following command to save changes and quit:
(a colon, "w" and "q"). Now press
Enter. Git will squash your "fixup" commit with the previous one.
5. Push your changes to GitHub. Since you have rewritten the commit history you need to use
git push -f
Now you PR will be updated and you still have one commit in the PR.