pr-preview-cleanup.yml

name: Cleanup PR Preview

on:
  pull_request_target:
    types: [closed]

permissions:
  contents: read

env:
  CLOUDFLARE_PAGES_PROJECT_NAME: typelevel-website
  BRANCH_NAME: pr-${{ github.event.pull_request.number }}

jobs:
  cleanup-preview:
    name: Delete Cloudflare Pages preview deployments
    runs-on: ubuntu-latest
    steps:
      - name: Delete deployments for this PR's branch
        env:
          CLOUDFLARE_API_TOKEN: ${{ secrets.CLOUDFLARE_API_TOKEN }}
          CLOUDFLARE_ACCOUNT_ID: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
        run: |
          set -euo pipefail

          API="https://api.cloudflare.com/client/v4/accounts/$CLOUDFLARE_ACCOUNT_ID/pages/projects/$CLOUDFLARE_PAGES_PROJECT_NAME/deployments"
          AUTH_HEADER="Authorization: Bearer $CLOUDFLARE_API_TOKEN"

          page=1
          ids=()
          while :; do
            response=$(curl -sf -H "$AUTH_HEADER" "$API?page=$page&per_page=25")
            count=$(echo "$response" | jq '.result | length')
            [ "$count" -eq 0 ] && break
            while IFS= read -r id; do
              ids+=("$id")
            done < <(echo "$response" | jq -r --arg branch "$BRANCH_NAME" \
              '.result[] | select(.deployment_trigger.metadata.branch == $branch) | .id')
            page=$((page + 1))
          done

          if [ ${#ids[@]} -eq 0 ]; then
            echo "No preview deployments found for branch $BRANCH_NAME"
            exit 0
          fi

          for id in "${ids[@]}"; do
            echo "Deleting deployment $id"
            curl -sf -X DELETE -H "$AUTH_HEADER" "$API/$id?force=true"
          done