closePR.yml

# Github action to cleanup a PR preview
# Runs on dispatch or weekly schedule and deletes closed PR previews that are older than 7 days
#

name: PR Preview Cleanup

on:
  workflow_dispatch:
  schedule:
    - cron: "0 3 * * 1"

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout gh-pages
        uses: actions/checkout@v4
        with:
          ref: gh-pages
          
      - name: Iterate and Check PRs
        id: pr_check
        run: |
          pr_folders=($(cd pr && ls -d */))
          closed_pr=()
          for pr_folder in "${pr_folders[@]}"; do
            pr_status=$(curl -s -H "Authorization: Bearer ${{ secrets.GITHUB_TOKEN }}" \
              -X GET "https://api.github.com/repos/${{ github.repository }}/pulls/${pr_folder::-1}" \
              | jq -r '.state')
            echo "PR ${pr_folder::-1} is $pr_status"
            if [ "$pr_status" != "open" ]; then
              rm -rf "pr/${pr_folder::-1}"
              closed_pr+=("${pr_folder::-1}")
              echo "Removed folder pr/${pr_folder::-1} for closed PR ${pr_folder::-1}"
            fi
          done
          echo "${closed_pr[*]}" >> $GITHUB_STATE
      
      - name: Commit and push to gh-pages
        uses: EndBug/add-and-commit@v9.1.3
        with:
          committer_email: 53436240+fortran-lang@users.noreply.github.com
          committer_name: Fortran
          message: "Sphinx build cleanup pr/${{ steps.pr_check.outputs.closed_pr }}"
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}