name: Publish
on:
  push:
    branches:
      - master
    paths-ignore:
      - '.mailmap'
      - 'README.md'
  workflow_dispatch:

permissions:
  contents: read

jobs:
  HTML:
    runs-on: ubuntu-latest
    concurrency: docs.named-data.net
    environment:
      name: docs.named-data.net
      url: https://docs.named-data.net/NDN-packet-spec/${{ steps.version.outputs.version }}/
    steps:
      - name: Checkout
        uses: actions/checkout@v3
      - name: Extract version
        id: version
        run: |
          v=$(sed -nE "s/^version\s*=\s*['\"]([0-9]+(\.[0-9]+){0,3})['\"]/\1/p" conf.py)
          if [[ -z $v ]]; then
            echo "::error::Could not find a valid version in conf.py"
            exit 1
          fi
          echo "::notice::Publishing version $v"
          echo "version=$v" >> $GITHUB_OUTPUT
      - name: Set up Python
        uses: actions/setup-python@v4
        with:
          python-version: '3.10'
      - name: Install dependencies
        run: |
          python -m pip install --upgrade pip
          pip install -r requirements.txt
      - name: Generate HTML pages
        run: make html
        env:
          SPHINXOPTS: --color
      - name: Publish HTML pages
        uses: easingthemes/ssh-deploy@v4
        with:
          ARGS: -chirvEW --delay-updates --delete-delay
          REMOTE_HOST: ${{ vars.DOCS_DEPLOYMENT_HOST }}
          REMOTE_PORT: ${{ secrets.DOCS_DEPLOYMENT_PORT }}
          REMOTE_USER: ${{ secrets.DOCS_DEPLOYMENT_USER }}
          SSH_PRIVATE_KEY: ${{ secrets.DOCS_DEPLOYMENT_SSH_KEY }}
          SOURCE: _build/html/
          TARGET: /srv/docs/NDN-packet-spec/${{ steps.version.outputs.version }}/