How to disable pull requests in GitHub?

Question

I am trying to understand how will I be able to disable \"pull requests\" in github.

Question 1: We are trying to use the rebase workflow and that means using pull requ

Answer 1

How to disable pull requests in GitHub?

So far (Q2 2020): not possible.

Update Sept. 2020, this "dear-github" issue point out in the comments to the GitHub Action "Repo Lockdown": it can help prevent any new PR on a GitHub repository.

Oct. 2020: "GitHub Actions: Fine-tune access to external actions" means that you can disable external GitHub Action that would create PR (or have any other effect on your repository)

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Armin Sebastian suggests in GitHub issue 1191

I've made a new app that immediately closes and locks new and existing issues or pull requests and also supports posting a comment and labeling.
It is perfect for forks and mirrors, and you can configure it to your liking

dessant/repo-lockdown, with a .github/lockdown.yml including

# Lock issues and pull requests
lock: true

# Limit to only `issues` or `pulls`
# only: pull

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Other workaround:

Note that (considering the OP dates from January 2015):

• since Sept 2015, you can protect branches in a GitHub repo.
  
  That means a protected branch:

• Can't be force pushed

• Can't be deleted

• Can't have changes merged into it until required status checks pass

• Can't have changes merged into it until required reviews are approved

• Can't be edited or have files uploaded to it from the web

And Since October 2016, you can dismiss a review

However, this requirement can sometimes block your team’s progress without good reason.
If someone leaves a review that requests changes and then goes on vacation or runs into computer problems, your pull request could be blocked for days, even after you’ve addressed the reviewer’s concerns.

This will unblock your pull request, freeing you up to merge it!