name: Performance Tests

on:
  push:
    branches:
      - trunk
      - '6.[2-9]'
      - '[7-9].[0-9]'
    tags:
      - '[0-9]+.[0-9]'
      - '[0-9]+.[0-9].[0-9]+'
      - '![45].[0-9].[0-9]+'
      - '!6.[01].[0-9]+'
  pull_request:
    branches:
      - trunk
      - '6.[2-9]'
      - '[7-9].[0-9]'
  workflow_dispatch:

# Cancels all previous workflow runs for pull requests that have not completed.
concurrency:
  # The concurrency group contains the workflow name and the branch name for pull requests
  # or the commit hash for any other events.
  group: ${{ github.workflow }}-${{ github.event_name == 'pull_request' && github.head_ref || github.sha }}
  cancel-in-progress: true

# Disable permissions for all available scopes by default.
# Any needed permissions should be configured at the job level.
permissions: {}

env:
  PUPPETEER_SKIP_DOWNLOAD: ${{ true }}

  # Performance testing should be performed in an environment reflecting a standard production environment.
  LOCAL_WP_DEBUG: false
  LOCAL_SCRIPT_DEBUG: false
  LOCAL_SAVEQUERIES: false
  LOCAL_WP_DEVELOPMENT_MODE: "''"

  # This workflow takes two sets of measurements — one for the current commit,
  # and another against a consistent version that is used as a baseline measurement.
  # This is done to isolate variance in measurements caused by the GitHub runners
  # from differences caused by code changes between commits. The BASE_TAG value here
  # represents the version being used for baseline measurements. It should only be
  # changed if we want to normalize results against a different baseline.
  BASE_TAG: '6.1.1'
  LOCAL_DIR: build
  TARGET_REF: ${{ github.event_name == 'pull_request' && github.event.pull_request.base.ref || '' }}
  TARGET_SHA: ${{ github.event_name == 'pull_request' && github.event.pull_request.base.sha || github.event.before }}

jobs:
  # Runs the performance test suite.
  #
  # Performs the following steps:
  # - Configure environment variables.
  # - Checkout repository.
  # - Set up Node.js.
  # - Log debug information.
  # - Install npm dependencies.
  # - Install Playwright browsers.
  # - Build WordPress.
  # - Start Docker environment.
  # - Log running Docker containers.
  # - Docker debug information.
  # - Install WordPress.
  # - Install WordPress Importer plugin.
  # - Import mock data.
  # - Update permalink structure.
  # - Install MU plugin.
  # - Run performance tests (current commit).
  # - Print performance tests results.
  # - Check out target commit (target branch or previous commit).
  # - Switch Node.js versions if necessary.
  # - Install npm dependencies.
  # - Build WordPress.
  # - Run any database upgrades.
  # - Run performance tests (previous/target commit).
  # - Print target performance tests results.
  # - Reset to original commit.
  # - Switch Node.js versions if necessary.
  # - Install npm dependencies.
  # - Set the environment to the baseline version.
  # - Run any database upgrades.
  # - Run baseline performance tests.
  # - Print baseline performance tests results.
  # - Compare results with base.
  # - Add workflow summary.
  # - Set the base sha.
  # - Set commit details.
  # - Publish performance results.
  # - Ensure version-controlled files are not modified or deleted.
  # - Dispatch workflow run.
  performance:
    name: Run performance tests
    runs-on: ubuntu-latest
    permissions:
      contents: read
    if: ${{ ( github.repository == 'WordPress/wordpress-develop' || github.event_name == 'pull_request' ) && ! contains( github.event.before, '00000000' ) }}

    steps:
      - name: Configure environment variables
        run: |
          echo "PHP_FPM_UID=$(id -u)" >> $GITHUB_ENV
          echo "PHP_FPM_GID=$(id -g)" >> $GITHUB_ENV

      - name: Checkout repository
        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
        with:
          show-progress: ${{ runner.debug == '1' && 'true' || 'false' }}

      - name: Set up Node.js
        uses: actions/setup-node@b39b52d1213e96004bfcb1c61a8a6fa8ab84f3e8 # v4.0.1
        with:
          node-version-file: '.nvmrc'
          cache: npm

      - name: Log debug information
        run: |
          npm --version
          node --version
          curl --version
          git --version
          locale -a

      - name: Install npm dependencies
        run: npm ci

      - name: Install Playwright browsers
        run: npx playwright install --with-deps

      - name: Build WordPress
        run: npm run build

      - name: Start Docker environment
        run: |
          npm run env:start

      - name: Log running Docker containers
        run: docker ps -a

      - name: Docker debug information
        run: |
          docker -v
          docker-compose -v
          docker-compose run --rm mysql mysql --version
          docker-compose run --rm php php --version
          docker-compose run --rm php php -m
          docker-compose run --rm php php -i
          docker-compose run --rm php locale -a

      - name: Install WordPress
        run: npm run env:install

      - name: Install WordPress Importer plugin
        run: npm run env:cli -- plugin install wordpress-importer --activate --path=/var/www/${{ env.LOCAL_DIR }}

      - name: Import mock data
        run: |
          curl -O https://raw.githubusercontent.com/WordPress/theme-test-data/b9752e0533a5acbb876951a8cbb5bcc69a56474c/themeunittestdata.wordpress.xml
          npm run env:cli -- import themeunittestdata.wordpress.xml --authors=create --path=/var/www/${{ env.LOCAL_DIR }}
          rm themeunittestdata.wordpress.xml

      - name: Update permalink structure
        run: |
          npm run env:cli -- rewrite structure '/%year%/%monthnum%/%postname%/' --path=/var/www/${{ env.LOCAL_DIR }}

      - name: Install additional languages
        run: |
          npm run env:cli -- language core install de_DE --path=/var/www/${{ env.LOCAL_DIR }}
          npm run env:cli -- language plugin install de_DE --all --path=/var/www/${{ env.LOCAL_DIR }}
          npm run env:cli -- language theme install de_DE --all --path=/var/www/${{ env.LOCAL_DIR }}

      - name: Install MU plugin
        run: |
          mkdir ./${{ env.LOCAL_DIR }}/wp-content/mu-plugins
          cp ./tests/performance/wp-content/mu-plugins/server-timing.php ./${{ env.LOCAL_DIR }}/wp-content/mu-plugins/server-timing.php

      - name: Run performance tests (current commit)
        run: npm run test:performance

      - name: Print performance tests results
        run: node ./tests/performance/results.js

      - name: Check out target commit (target branch or previous commit)
        run: |
          if [[ -z "$TARGET_REF" ]]; then
            git fetch -n origin $TARGET_SHA
          else
            git fetch -n origin $TARGET_REF
          fi
          git reset --hard $TARGET_SHA

      - name: Set up Node.js
        uses: actions/setup-node@b39b52d1213e96004bfcb1c61a8a6fa8ab84f3e8 # v4.0.1
        with:
          node-version-file: '.nvmrc'
          cache: npm

      - name: Install npm dependencies
        run: npm ci

      - name: Build WordPress
        run: npm run build

      - name: Run any database upgrades
        run: npm run env:cli -- core update-db --path=/var/www/${{ env.LOCAL_DIR }}

      - name: Run target performance tests (base/previous commit)
        env:
          TEST_RESULTS_PREFIX: before
        run: npm run test:performance

      - name: Print target performance tests results
        env:
          TEST_RESULTS_PREFIX: before
        run: node ./tests/performance/results.js

      - name: Reset to original commit
        run: git reset --hard $GITHUB_SHA

      - name: Set up Node.js
        uses: actions/setup-node@b39b52d1213e96004bfcb1c61a8a6fa8ab84f3e8 # v4.0.1
        with:
          node-version-file: '.nvmrc'
          cache: npm

      - name: Install npm dependencies
        run: npm ci

      - name: Set the environment to the baseline version
        run: |
          npm run env:cli -- core update --version=${{ env.BASE_TAG }} --force --path=/var/www/${{ env.LOCAL_DIR }}
          npm run env:cli -- core version --path=/var/www/${{ env.LOCAL_DIR }}

      - name: Run any database upgrades
        run: npm run env:cli -- core update-db --path=/var/www/${{ env.LOCAL_DIR }}

      - name: Run baseline performance tests
        env:
          TEST_RESULTS_PREFIX: base
        run: npm run test:performance

      - name: Print baseline performance tests results
        env:
          TEST_RESULTS_PREFIX: base
        run: node ./tests/performance/results.js

      - name: Compare results with base
        run: node ./tests/performance/compare-results.js ${{ runner.temp }}/summary.md

      - name: Add workflow summary
        run: cat ${{ runner.temp }}/summary.md >> $GITHUB_STEP_SUMMARY

      - name: Set the base sha
        # Only needed when publishing results.
        if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/trunk' }}
        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
        id: base-sha
        with:
            github-token: ${{ secrets.GITHUB_TOKEN }}
            script: |
                const baseRef = await github.rest.git.getRef({ owner: context.repo.owner, repo: context.repo.repo, ref: 'tags/${{ env.BASE_TAG }}' });
                return baseRef.data.object.sha;

      - name: Set commit details
        # Only needed when publishing results.
        if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/trunk' }}
        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
        id: commit-timestamp
        with:
            github-token: ${{ secrets.GITHUB_TOKEN }}
            script: |
                const commit_details = await github.rest.git.getCommit({ owner: context.repo.owner, repo: context.repo.repo, commit_sha: context.sha });
                return parseInt((new Date( commit_details.data.author.date ).getTime() / 1000).toFixed(0))

      - name: Publish performance results
        # Only publish results on pushes to trunk.
        if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/trunk' }}
        env:
            BASE_SHA: ${{ steps.base-sha.outputs.result }}
            COMMITTED_AT: ${{ steps.commit-timestamp.outputs.result }}
            CODEVITALS_PROJECT_TOKEN: ${{ secrets.CODEVITALS_PROJECT_TOKEN }}
            HOST_NAME: "www.codevitals.run"
        run: node ./tests/performance/log-results.js $CODEVITALS_PROJECT_TOKEN trunk $GITHUB_SHA $BASE_SHA $COMMITTED_AT $HOST_NAME

      - name: Ensure version-controlled files are not modified or deleted
        run: git diff --exit-code

  slack-notifications:
    name: Slack Notifications
    uses: WordPress/wordpress-develop/.github/workflows/slack-notifications.yml@trunk
    permissions:
      actions: read
      contents: read
    needs: [ performance ]
    if: ${{ github.repository == 'WordPress/wordpress-develop' && github.event_name != 'pull_request' && always() }}
    with:
      calling_status: ${{ contains( needs.*.result, 'cancelled' ) && 'cancelled' || contains( needs.*.result, 'failure' ) && 'failure' || 'success' }}
    secrets:
      SLACK_GHA_SUCCESS_WEBHOOK: ${{ secrets.SLACK_GHA_SUCCESS_WEBHOOK }}
      SLACK_GHA_CANCELLED_WEBHOOK: ${{ secrets.SLACK_GHA_CANCELLED_WEBHOOK }}
      SLACK_GHA_FIXED_WEBHOOK: ${{ secrets.SLACK_GHA_FIXED_WEBHOOK }}
      SLACK_GHA_FAILURE_WEBHOOK: ${{ secrets.SLACK_GHA_FAILURE_WEBHOOK }}

  failed-workflow:
    name: Failed workflow tasks
    runs-on: ubuntu-latest
    permissions:
      actions: write
    needs: [ slack-notifications ]
    if: |
      always() &&
      github.repository == 'WordPress/wordpress-develop' &&
      github.event_name != 'pull_request' &&
      github.run_attempt < 2 &&
      (
        contains( needs.*.result, 'cancelled' ) ||
        contains( needs.*.result, 'failure' )
      )

    steps:
      - name: Dispatch workflow run
        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
        with:
          retries: 2
          retry-exempt-status-codes: 418
          script: |
            github.rest.actions.createWorkflowDispatch({
              owner: context.repo.owner,
              repo: context.repo.repo,
              workflow_id: 'failed-workflow.yml',
              ref: 'trunk',
              inputs: {
                run_id: '${{ github.run_id }}'
              }
            });