PR between forks

[lldelisle]

Subject of the issue

I may be wrong but it seems that the action does not find the corresponding PR when it is a PR across forks.

Your git environment

• On https://github.com/lldelisle/iwc
• The workflow is:
  https://github.com/lldelisle/iwc/blob/36c65a61e9382b63a2e446ebe533e08dbf4253da/.github/workflows/workflow_test.yml#L101-L110

    - name: Get PR object
      if: failure()
      uses: 8BitJonny/[email protected]
      id: failed_pr_number
      with:
        sha: ${{ github.event.pull_request.head.sha }}
    - name: Debug GetPR output
      if: failure()
      run: |
          echo ${{ steps.failed_pr_number.outputs.number }}

• PR from myself gave the correct PR number:
  PR: change test to make it fail lldelisle/iwc#5
  Action: https://github.com/lldelisle/iwc/actions/runs/6890547992/job/18744182033#step:10:13
• PR from another fork gave nothing:
  PR: Test failing PR from mvdbeek lldelisle/iwc#6
  Action: https://github.com/lldelisle/iwc/actions/runs/6890942348/job/18745393967?pr=6#step:10:13

Steps to reproduce

I guess just make a PR between forks should make it reproducible.

Expected behaviour

I was expecting to find the good PR number

Actual behaviour

Tell us what happens instead

[8BitJonny]

Yes, this action right now works only within the context of a single repo currently. It does not take forks into account at all. I'm currently pretty swamped but anyone is welcome to give this feature a try and implement it. I'd be happy to review it