.github/workflows/restrict-trunk.yml

name: Manage Trunk Restrictions

permissions: {}

concurrency:
  group: manage-trunk-restrictions
  cancel-in-progress: false

on:
  workflow_dispatch:
    inputs:
      restrict:
        description: 'Restrict trunk branch'
        required: true
        type: boolean
  workflow_call:
    inputs:
      restrict:
        description: 'Restrict trunk branch'
        required: true
        type: boolean
      message:
        description: 'Slack message override (optional)'
        required: false
        type: string
        default: ''
    secrets:
      SELENIUM_CI_TOKEN:
        required: true
      SLACK_WEBHOOK_URL:
        required: true

jobs:
  get-approval:
    name: Get Approval
    if: inputs.restrict || github.event_name == 'workflow_dispatch'
    uses: ./.github/workflows/get-approval.yml
    with:
      title: ${{ inputs.restrict && 'Trunk branch locking' || 'Trunk branch unlocking' }}
      message: ${{ inputs.restrict && 'Approval is required to begin release process.' || 'Approval is required to unlock trunk.' }}
    secrets:
      SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}

  manage-trunk:
    name: Manage Trunk Branch
    needs: [get-approval]
    runs-on: ubuntu-latest
    if: always() && (needs.get-approval.result == 'success' || (!inputs.restrict && github.event_name != 'workflow_dispatch'))
    strategy:
      matrix:
        ruleset_id:
          - 11911909  # Release In Progress Access (restrict updates to trunk to release managers)
          - 11912022  # Release In Progress Flow (requires branches to be up to date before merging)
    env:
      TRUNK_RESTRICTED: ${{ inputs.restrict }}
    steps:
      - name: Update ruleset enforcement
        uses: octokit/request-action@v2.4.0
        with:
          route: PUT /repos/{owner}/{repo}/rulesets/{ruleset_id}
          owner: ${{ github.repository_owner }}
          repo: ${{ github.event.repository.name }}
          ruleset_id: ${{ matrix.ruleset_id }}
          enforcement: ${{ env.TRUNK_RESTRICTED == 'true' && 'active' || 'disabled' }}
        env:
          GITHUB_TOKEN: ${{ secrets.SELENIUM_CI_TOKEN }}

  notify:
    name: Send Notification
    needs: [manage-trunk]
    if: always() && needs.manage-trunk.result == 'success'
    runs-on: ubuntu-latest
    env:
      TRUNK_RESTRICTED: ${{ inputs.restrict }}
    steps:
      - name: Slack Notification
        uses: rtCamp/action-slack-notify@v2
        env:
          SLACK_ICON_EMOJI: ${{ env.TRUNK_RESTRICTED == 'true' && ':lock:' || ':unlock:' }}
          SLACK_COLOR: ${{ env.TRUNK_RESTRICTED == 'true' && 'danger' || 'good' }}
          SLACK_CHANNEL: selenium-tlc
          SLACK_USERNAME: GitHub Workflows
          SLACK_TITLE: ${{ env.TRUNK_RESTRICTED == 'true' && 'Trunk locked' || 'Trunk unlocked' }}
          SLACK_MESSAGE: ${{ inputs.message != '' && inputs.message || (env.TRUNK_RESTRICTED == 'true' && 'Trunk has been locked.' || 'Trunk has been unlocked.') }}
          MSG_MINIMAL: actions url
          SLACK_WEBHOOK: ${{ secrets.SLACK_WEBHOOK_URL }}