ci.yml

name: CI

on:
  push:
    branches:
      - master
  pull_request:
    branches:
      - master

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v1

    - name: Set Node.js
      uses: actions/setup-node@master
      with:
        node-version: 12.x

    - uses: actions/cache@v1
      with:
        path: node_modules
        key: ${{ runner.os }}-node_modules-${{ hashFiles('**/yarn.lock') }}
        restore-keys: |
          ${{ runner.os }}-node_modules-

    - name: Install dependencies
      run: yarn install

    - name: Test
      run: yarn test

    - name: Build 11ty site
      run: yarn build

    - name: Upload artifacts
      uses: actions/upload-artifact@v1
      with:
        name: site
        path: _site/

  deploy:
    if: github.ref == 'refs/heads/master'
    runs-on: ubuntu-latest
    needs: build

    steps:
    - name: Write deploy key
      env:
        DEPLOY_KEY: ${{ secrets.DEPLOY_KEY }}
      run: |
        echo "$DEPLOY_KEY" > /tmp/deploy-key
        chmod 0600 /tmp/deploy-key
        mkdir -p ~/.ssh
        ssh-keyscan github.com >> ~/.ssh/known_hosts

    - name: Download artifacts
      uses: actions/download-artifact@v1
      with:
        name: site
        path: ./

    - name: Init repo
      run: |
        git init
        git config user.email "deployer@github"
        git config user.name "Deployer"

    - name: Commit
      run: |
        git add .
        git commit -m "Deploy"

    - name: Push
      env:
        GIT_SSH_COMMAND: "ssh -i /tmp/deploy-key"
      run: |
        git remote add origin git@github.com:$GITHUB_REPOSITORY.git
        git push -f origin HEAD:gh-pages