update-website.yml

name: Build website

on:
  # Trigger the workflow whenever a new tag is created.
  push:
    branches:
      - 'stable'
    tags:
      - '**'
  # And whenever this workflow or one of the associated scripts is updated (for a dry-run).
  pull_request:
    branches-ignore:
      - 'stable'
    paths:
      - 'README.md'
      - '.github/workflows/update-website.yml'
      - '.github/build/**'
  # Also allow manually triggering the workflow.
  workflow_dispatch:

# Cancels all previous workflow runs for the same branch that have not yet completed.
concurrency:
  # The concurrency group contains the workflow name and the branch name.
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  prepare:
    name: "Update website files"
    # Don't run on forks.
    if: github.repository == 'PHPCSStandards/PHPCSDevTools'

    runs-on: ubuntu-latest
    steps:
      # By default use the `stable` branch as the published docs should always
      # reflect the latest release.
      # For testing changes to the workflow or the scripts, use the PR branch
      # to have access to the latest version of the workflow/scripts.
      - name: Determine branch to use
        id: base_branch
        env:
          REF: ${{ github.ref }}
        run: |
          if [ "${{ github.event_name }}" == "pull_request" ]; then
            echo "BRANCH=$REF" >> $GITHUB_OUTPUT
          else
            echo 'BRANCH=stable' >> $GITHUB_OUTPUT
          fi

      - name: Checkout code
        uses: actions/checkout@v3
        with:
          ref: ${{ steps.base_branch.outputs.BRANCH }}

      - name: Install PHP
        uses: shivammathur/setup-php@v2
        with:
          php-version: 'latest'
          ini-values: error_reporting=-1, display_errors=On, log_errors_max_len=0
          coverage: none

      - name: Prepare the files which will be deployed to the GH Pages website
        run: php .github/build/update-website.php

      - name: "Set variable: short sha"
        id: set_sha
        env:
          SHA: ${{ github.sha }}
        run: |
          shortsha=$(echo "$SHA" | cut -b 1-6)
          echo "SHORTSHA=$shortsha" >> $GITHUB_OUTPUT

      - name: Prepare commit message
        id: commit_msg
        env:
          REF_NAME: ${{ github.ref_name }}
          COMMIT_MSG: ${{ github.event.head_commit.message }}
        run: |
          if [[ "${{ github.event_name }}" == 'push' && "${{ github.ref_type }}" == 'tag' ]]; then
            echo "MSG=Update website for release of version $REF_NAME" >> $GITHUB_OUTPUT
          else
            echo "MSG=Sync website after commit (sha: ${{ steps.set_sha.outputs.SHORTSHA }})" >> $GITHUB_OUTPUT
          fi

      - name: Check GitHub Pages status
        uses: crazy-max/ghaction-github-status@v3
        with:
          pages_threshold: major_outage

      - name: Deploy the website
        if: success()
        uses: crazy-max/ghaction-github-pages@v4
        with:
          build_dir: 'deploy'
          target_branch: 'gh-pages'
          keep_history: true
          #allow_empty_commit: false # Turn on after verification that it all works as expected.
          jekyll: true
          commit_message: ${{ steps.commit_msg.outputs.MSG }}
          dry_run: ${{ steps.base_branch.outputs.BRANCH != 'stable' }}
          verbose: ${{ matrix.verbose }}
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}