name: "Publish"
on:
  pull_request:
  push:
    branches: master

jobs:
  deploy:
    runs-on: ubuntu-20.04 # change to -latest when possible

    steps:
    - uses: purcell/setup-emacs@master
      with:
        version: 27.1

    - name: Checkout config
      uses: actions/checkout@v2
      with:
        submodules: recursive

    - name: Symlink config to expected location
      # I could just set DOOMDIR ... but this is also easy
      run: |
        mkdir -p ~/.config
        ln -s $GITHUB_WORKSPACE ~/.config/doom
        mkdir -p ~/.org/roam

    - name: Generate init.el et. al from config.org
      run: |
        cd ~/.config/doom
        emacs --batch --eval "(require 'org)" --eval '(org-babel-tangle-file "config.org")'

    - name: Clone Doom to ~/.emacs.d
      run: git clone --depth 1 https://github.com/hlissner/doom-emacs ~/.emacs.d

    - name: Get Doom's version
      id: doom-version
      run: |
        cd ~/.emacs.d
        echo ::set-output name=hash::$(git log -1 | head -1 | awk '{print substr($2,1,7)}')
      shell: bash

    - name: Cache Doom's install
      uses: actions/cache@v2
      with:
        path: ~/.emacs.d
        key: ${{ runner.os }}-doom@${{ steps.doom-version.outputs.hash }}

    - name: Doom dependencies
      run: sudo apt-get install git ripgrep xclip

    - name: Install Doom
      run: ~/.emacs.d/bin/doom install --no-env --no-fonts

    - name: Export config
      run: |
        cd ~/.config/doom/misc
        ./config-exporter.sh
        cp ../config.html ../index.html

    - name: Move files of interest to the publish subdir
      run: |
        cd ~/.config/doom
        mkdir -p ./publish
        mv *.html ./publish
      
    - name: Deploy
      uses: peaceiris/actions-gh-pages@v3
      with:
        deploy_key: ${{ secrets.ACTIONS_DEPLOY_KEY }}
        publish_dir: ./publish
        force_orphan: true
        exclude_assets: '.github,lisp/LaTeX-auto-activating-snippets,lisp/authinfo-color-mode,lisp/lexic,lisp/org-pandoc-import'