build.yml

name: Build Hugo site

on:
  push:
    branches: [ '*' ]
  pull_request:
    branches: [ '*' ]
  workflow_dispatch:
    inputs:
      logLevel:
        default: 'warning'

jobs:
  transform:
    # Workaround for https://github.com/actions/runner-images/issues/6680
    runs-on: ubuntu-20.04
    steps:
    - name: Inject slug/short variables
      uses: rlespinasse/github-slug-action@v4.4.1
    - name: Checkout
      id: checkout
      uses: actions/checkout@master
      with:
        submodules: false
        # Setting true above seems to lead to submodule updation problems.
        fetch-depth: 1
    - name: Update submodules
      id: update_submods
      run: |
        set -o xtrace
        echo "=====${{ steps.changed-files.outputs.all_changed_files}}======"
        echo "=====${{ steps.changed-files.outputs.all_changed_files}}======"
        git submodule update  --init --recursive
        git submodule update --remote --merge --recursive
    - name: Get changed files
      id: changed-files
      if: ${{ github.event_name != 'workflow_dispatch' }}
      uses: tj-actions/changed-files@v41
    - id: filter_changed_files
      if: ${{ steps.changed-files.conclusion == 'success'}}
      uses: actions/github-script@v6
      with:
        script: |
          var changed_files = '${{steps.changed-files.outputs.all_changed_files}}'.replace(/(?<= |^)content\S*?(?= |$)/, "").replace(/(?<= |^)static\S*?(?= |$)/, "").trim()
          console.log(changed_files, changed_files.length)
          core.setOutput('count', changed_files.length.toString())

    - name: Setup Hugo
      id: setup_hugo
      if: ${{ steps.changed-files.conclusion == 'skipped' || steps.filter_changed_files.outputs.count != '0'}}
      uses: peaceiris/actions-hugo@v2
      with:
        hugo-version: "0.122.0"
        # extended: true
      # Step 3 - Clean and don't fail
    - name: Clean build_github directory
      id: clean_build
      if: steps.setup_hugo.conclusion == 'success'
      run: rm -rf build_github
    - name: Build hugo site pages
      id: hugo_build
      if: steps.clean_build.conclusion == 'success'
      run: |
        hugo
    - name: Deploy
      if: ${{ github.event_name != 'pull_request' && steps.hugo_build.conclusion == 'success'}}
      uses: peaceiris/actions-gh-pages@v3
      with:
        github_token: ${{ secrets.GITHUB_TOKEN }}
        publish_dir: ./build_github
        publish_branch: gh-pages
        force_orphan: true # git history growth - even on non-src branches - makes cloning slow.