cut-release-branch.yml

name: 'Cut Release Branch'
permissions:
  contents: write
  pull-requests: write

on:
  workflow_dispatch: # allow manual triggering
  schedule:
    - cron: '55 14 * * 4' # trigger every Thursday at 14:55 UTC (9:55 EST)

jobs:
  cut-release-branch:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
      - name: Compute branch name
        id: branch_name
        run: echo "branch_name=release-$(date +'%Y-%m-%d')" >> "$GITHUB_OUTPUT"
      - name: Create release branch
        run: |
          git checkout -b ${{ steps.branch_name.outputs.branch_name }}
          git push -u origin ${{ steps.branch_name.outputs.branch_name }}
      - name: Create pull request
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          gh pr create \
            --base main \
            --head ${{ steps.branch_name.outputs.branch_name }} \
            --title "Release ${{ steps.branch_name.outputs.branch_name }}" \
            --body "Opened automatically by [cut-release-branch](https://github.com/evidence-dev/evidence/actions/runs/${{ github.run_id }})"