name: GitHub Pages

on:
  push:
    branches:
    - master

jobs:
  deploy:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@master
      with:
        fetch-depth: 1
        lfs: false
    # pull from custom Hugo Extended image with opinionated changes
    # Docker hub: https://hub.docker.com/r/jakejarvis/hugo-custom
    # base Dockerfile source: https://go.jarv.is/hugo-dockerfile
    - name: Build Hugo
      uses: docker://jakejarvis/hugo-custom:latest
      with:
        args: --gc --cleanDestinationDir
    # native git commands for speed and simplicity, and because this
    # setup is a weird edge case not worth making an action for.
    - name: Push to jakejarvis.github.io
      shell: bash
      run: |
        # copy Hugo output to somewhere we have permissions
        mkdir gh-pages
        cp -r public/* gh-pages
        cd gh-pages
        # CNAME file for GitHub Pages custom domain
        echo "jarv.is" > CNAME
        # set up git
        git init
        git config user.name "Jake Jarvis"
        git config user.email "jakejarvis@users.noreply.github.com"
        # deploy folder to external *.github.io repository
        git remote add target https://${{ secrets.GITHUB_ACCESS_TOKEN }}@github.com/jakejarvis/jakejarvis.github.io.git
        git add -A
        git commit -m "GitHub Pages deploy from $GITHUB_REPOSITORY@$GITHUB_SHA"
        git push --force target master