main.yml

name: "Build Site and Deploy"

on:
  push:
    branches: "release"
  pull_request:

env:
  GITHUB_PR_NUMBER: "${{github.event.number}}"
  PREVIEW_PATH: "./preview"


jobs:
  build:
    name: "Build"
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v2
      with:
        fetch-depth: '0'
    - name: Install Nix
      uses: cachix/install-nix-action@v12
      with:
        install_url: https://github.com/numtide/nix-flakes-installer/releases/download/nix-2.4pre20201221_9fab14a/install
        extra_nix_config: |
          experimental-features = nix-command flakes
    - name: Compile Document
      run: nix run ./#compile
    - name: Disable Jekyll rendering
      run: touch build/site/.nojekyll
    - name: Upload artifact
      uses: actions/upload-artifact@v2
      with:
        name: blog-build
        path: ./build/site

  deploy-preview:
    name: Deploy Preview
    needs: build
    runs-on: ubuntu-latest
    if: github.event_name == 'pull_request'
    steps:
    - name: Start deployment
      uses: bobheadxi/deployments@v1
      id: deployment
      with:
        step: start
        token: ${{ secrets.GITHUB_TOKEN }}
        env: preview (#${{ env.GITHUB_PR_NUMBER }})
        desc: Preview deployment of PR \#${{ env.GITHUB_PR_NUMBER }}
        ref: ${{ github.event.pull_request.head.ref }}
    - name: Download Preview Repo
      uses: actions/checkout@v2
      with:
        repository: ysndr/beta
        ref: gh-pages
        path: preview

    - name: Untrack preview
      run: rm -rf ./preview/.git


    - name: Download Current Build
      uses: actions/download-artifact@v2
      with:
        name: blog-build
        path: current

    - name: Apply Preview
      run: |
        export PR_PATH="$PREVIEW_PATH/$GITHUB_PR_NUMBER"

        mkdir -p $PREVIEW_PATH
        [ -d $PR_PATH ] && rm -r $PR_PATH

        mv ./current $PR_PATH

    - name: Deploy to GitHub
      uses: crazy-max/ghaction-github-pages@v2
      with:
        repo: ysndr/beta
        target_branch: gh-pages
        build_dir: ./preview
        committer: github-ci <notifications+ci-blog@ysndr.de>
        keep_history: true;
      env:
        GITHUB_TOKEN: ${{ secrets.DEPLOY_TOKEN }}

    - name: Update deployment status
      uses: bobheadxi/deployments@v1
      if: always()
      with:
        step: finish
        token: ${{ secrets.GITHUB_TOKEN }}
        status: ${{ job.status }}
        deployment_id: ${{ steps.deployment.outputs.deployment_id }}
        env: ${{ steps.deployment.outputs.env }}
        env_url: https://ysndr.de/beta/${{ env.GITHUB_PR_NUMBER }}


  deploy-release:
    name: Deploy Release
    needs: build
    runs-on: ubuntu-latest
    if: github.event_name != 'pull_request'
    steps:
    - name: Download Current Build
      uses: actions/download-artifact@v2
      with:
        name: blog-build
        path: release

    - name: Deploy to GitHub
      uses: crazy-max/ghaction-github-pages@v2
      with:
        target_branch: gh-pages
        build_dir: ./release
        name: github-ci <notifications+ci-blog@ysndr.de>

      env:
        GITHUB_TOKEN: ${{ secrets.DEPLOY_TOKEN }}



  always-run:
    runs-on: ubuntu-latest
    steps:
    - name: Be friendly
      run: |
            echo "This is just here to prevent failure if the commit is not supposed to be build."
            echo "Don't mind, have a joke :)"
            echo "$(curl -Ss https://icanhazdadjoke.com/)"