update_api.yml

name: Update API
on:
  workflow_dispatch:
  schedule:
    - cron: "15 23 * * 1"
jobs:
  update-api:
    if: ${{ github.repository == 'slack-ruby/slack-ruby-client' }}
    runs-on: ubuntu-latest
    permissions:
      contents: write
      pull-requests: write
    steps:
      - uses: actions/checkout@v7
        with:
          submodules: recursive
          fetch-depth: 0
      - name: Config git to rebase
        run: git config --global pull.rebase true
      - name: Set up Ruby
        uses: ruby/setup-ruby@v1
        with:
          ruby-version: "3.2"
          bundler-cache: true
      - name: Update API from slack-api-ref
        run: bundle exec rake slack:api:update
      - name: Remove files added by setup-ruby
        run: rm -rf vendor
      - name: Get current date
        id: date
        run: echo "date=$(date +'%Y-%m-%d')" >> $GITHUB_OUTPUT
      - name: Get slack-api-ref ref
        id: api-ref
        run: echo "api-ref=$(git rev-parse --short HEAD:lib/slack/web/api/slack-api-ref)" >> $GITHUB_OUTPUT
      - name: Check for changes
        id: changes
        run: |
          if git diff --quiet; then
            echo "changed=false" >> "$GITHUB_OUTPUT"
          else
            echo "changed=true" >> "$GITHUB_OUTPUT"
          fi
      - name: Prepare diff for AI summary
        if: steps.changes.outputs.changed == 'true'
        run: |
          git diff --stat | sed 's/^/      /' > /tmp/diff_stat.txt
          git diff | head -c 20000 | sed 's/^/      /' > /tmp/diff.txt
      - name: Set up Node
        if: steps.changes.outputs.changed == 'true'
        uses: actions/setup-node@v6
      - name: Install Copilot CLI
        if: steps.changes.outputs.changed == 'true'
        run: npm install -g @github/copilot
      - name: Generate changelog entries with AI
        if: steps.changes.outputs.changed == 'true'
        id: ai
        uses: actions/ai-inference@v3
        with:
          prompt-file: ./.github/prompts/changelog-entries.prompt.yml
          model: ''
          file_input: |
            diff_stat: /tmp/diff_stat.txt
            diff: /tmp/diff.txt
        env:
          COPILOT_GITHUB_TOKEN: ${{ secrets.COPILOT_PAT }}
      - name: Build changelog entries
        id: entries
        run: |
          entries=""
          if [ "${{ steps.changes.outputs.changed }}" = "true" ]; then
            entries="$(grep -v '^```' "${{ steps.ai.outputs.response-file }}" 2>/dev/null | jq -r '.entries[]? // empty' 2>/dev/null)"
          fi
          if [ -z "$entries" ]; then
            entries="Update API from slack-api-ref@${{ steps.api-ref.outputs.api-ref }}"
          fi
          body_list="$(printf '%s\n' "$entries" | sed 's/^/- /')"
          {
            echo 'entries<<CHANGELOG_ENTRIES_EOF'
            echo "$entries"
            echo 'CHANGELOG_ENTRIES_EOF'
            echo 'body_list<<CHANGELOG_BODY_EOF'
            echo "$body_list"
            echo 'CHANGELOG_BODY_EOF'
          } >> "$GITHUB_OUTPUT"
      - name: GitHub App token
        if: ${{ github.repository == 'slack-ruby/slack-ruby-client' }}
        id: github_app_token
        uses: tibdex/github-app-token@v2.1.0
        with:
          app_id: ${{ secrets.CI_APP_ID }}
          private_key: ${{ secrets.CI_APP_PRIVATE_KEY }}
          installation_retrieval_mode: id
          installation_retrieval_payload: 36985419
      - name: Create pull request
        id: cpr
        uses: peter-evans/create-pull-request@v8
        with:
          token: ${{ steps.github_app_token.outputs.token || secrets.GITHUB_TOKEN }}
          commit-message: |
            Update API from slack-api-ref@${{ steps.api-ref.outputs.api-ref }} (${{ steps.date.outputs.date }})

            ${{ steps.entries.outputs.body_list }}
          title: Update API from slack-api-ref@${{ steps.api-ref.outputs.api-ref }}
          body: |
            Update API from [slack-api-ref](https://github.com/slack-ruby/slack-api-ref).
            Rev: ${{ steps.api-ref.outputs.api-ref }}
            Date: ${{ steps.date.outputs.date }}

            ## Changes

            ${{ steps.entries.outputs.body_list }}
          branch: automated-api-update
          base: master
          committer: slack-ruby-ci-bot <noreply@github.com>
          author: slack-ruby-ci-bot <noreply@github.com>
      - name: Check out update branch
        if: ${{ steps.cpr.outputs.pull-request-number != '' }}
        run: |
          git fetch origin automated-api-update
          git checkout automated-api-update
      - name: Update CHANGELOG
        if: ${{ steps.cpr.outputs.pull-request-number != '' }}
        env:
          PR_NUMBER: ${{ steps.cpr.outputs.pull-request-number }}
          ENTRIES: ${{ steps.entries.outputs.entries }}
        run: |
          ruby - <<'RUBYEOF'
          pr_number = ENV.fetch("PR_NUMBER")
          pr_url = "https://github.com/slack-ruby/slack-ruby-client/pull/#{pr_number}"
          entries = ENV.fetch("ENTRIES").each_line.map(&:strip).reject(&:empty?)

          lines = entries.map do |entry|
            "* [##{pr_number}](#{pr_url}): #{entry} - [@slack-ruby-ci-bot](https://github.com/apps/slack-ruby-ci-bot)."
          end.join("\n")

          content = File.read("CHANGELOG.md")
          content = content.sub("* Your contribution here.", "#{lines}\n* Your contribution here.")
          File.write("CHANGELOG.md", content)
          RUBYEOF
      - name: Commit and Push
        if: ${{ steps.cpr.outputs.pull-request-number != '' }}
        run: |
          git config --local user.name 'slack-ruby-ci-bot'
          git config --local user.email 'noreply@github.com'
          git add CHANGELOG.md
          git commit --amend --no-edit
          git remote set-url origin https://x-access-token:${{ steps.github_app_token.outputs.token || secrets.GITHUB_TOKEN }}@github.com/${{ github.repository }}.git
          git push origin automated-api-update -f