update-changesets.yml

name: update-changesets

env:
  WORKFLOW_FILE: update-changesets.yml
  DB_FILE: db
  RSS_URLS: |
    https://unity.com/releases/editor/lts-releases.xml
    https://unity.com/releases/editor/tech-and-preview-releases.xml
    https://unity.com/releases/editor/beta-releases.xml
    https://unity.com/releases/editor/alpha-releases.xml
  REGEX_UNITY_VERSION: '[0-9]{4,}\.[0-9]{1,}\.[0-9]{1,}(a|b|f|rc|p)[0-9]{1,}'

on:
  issue_comment:
    types:
      - created

jobs:
  build:
    if: startsWith(github.event.comment.body, '/update-changesets') && github.event.issue.locked
    name: 🛠️ Update changesets
    runs-on: ubuntu-latest
    permissions:
      contents: write
      actions: read
    steps:
      - name: 🚚 Checkout (gh_pages)
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
          ref: gh_pages
      - name: 🔍 Check other workflows
        run: |
          # Get in-progress or queued workflows.
          gh auth login --with-token < <(echo ${{ github.token }})
          RESULT=`gh run list --workflow ${{ env.WORKFLOW_FILE }} --json status --jq '[.[] | select(.status == "in_progress")] | length == 1'`

          # [ERROR] Other workflows are in progress.
          [ "$RESULT" = "false" ] && echo "::error::Other '${{ env.WORKFLOW_FILE }}' workflows are in progress." && exit 1 || :

      - name: 🛠️ Update changesets file
        run: |
          touch "${{ env.DB_FILE }}"
          urls=(`echo "${{ env.RSS_URLS }}"`)
          for url in "${urls[@]}"; do
            # Find versions from RSS
            echo "Processing: $url" | tee -a $GITHUB_STEP_SUMMARY
            versions=($(curl -s "$url" | grep -oE "${{ env.REGEX_UNITY_VERSION }}" | sort -u))

            for version in "${versions[@]}"; do
                # Already exists
                if grep -q "$version" "${{ env.DB_FILE }}"; then
                    continue
                fi

                # Get changeset for the Unity version
                changeset_output=$(npx unity-changeset "$version" 2>/dev/null)

                if [ $? -eq 0 ]; then
                    echo -e "$version\t$changeset_output" | tee -a "${{ env.DB_FILE }}" $GITHUB_STEP_SUMMARY
                else
                    echo "  Error: $version is not valid"
                fi
            done
          done

      - name: Commit & Push changes
        uses: actions-js/push@master
        with:
          github_token: ${{ github.token }}
          amend: true
          force: true
          branch: gh_pages