[github workflow] auto-close PR's with branch named 'master' (betafli…

…ght#441)

.github/workflows/auto-close.yml

@@ -0,0 +1,22 @@
+name: Auto close bad PR
+env:
+ GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+on:
+ pull_request_target:
+
+permissions:
+ pull-requests: write
+ issues: write
+
+jobs:
+ close-pr:
+ runs-on: ubuntu-22.04
+ steps:
+ - name: Code Checkout
+ uses: actions/checkout@v4
+
+ - name: autoclose
+ shell: bash
+ if: github.head_ref == 'master'
+ run: gh pr close ${{github.event.pull_request.number}} --comment "Auto-closing pull request because the source branch is named 'master'. Please create a feature branch instead. https://betaflight.com/docs/development#using-git-and-github"