name: Update, build and push Docker images

on:
  schedule:
  - cron: "12 */4 * * *"
  push:
    branches:
    - master

jobs:
  docker:
    runs-on: ubuntu-latest
    container:
      image: hairyhenderson/dockerfiles-builder:latest
    env:
      BASHBREW_LIBRARY: ./library
      BASHBREW_NAMESPACE: productionwentdown
    if: github.repository == 'productionwentdown/caddy' && github.ref == 'refs/heads/master'
    steps:

    - uses: actions/checkout@v2

    - name: Set Git user
      run: |
        git config --local user.email "action@github.com"
        git config --local user.name "GitHub Action"

    - name: Install Go 
      run: |
        apk add --no-cache go

    - name: Regenerate Dockerfiles
      run: |
        go run update.go -dockerfiles
        
    - name: Commit and push changes
      id: commit-dockerfiles
      run: |
        git add */*/Dockerfile
        if output=$(git status --porcelain) && [ ! -z "$output" ]; then
          git commit -m "Bump Caddy version" -a
          git push
          echo "::set-output name=bumped::yes"
        fi

    - name: Regenerate Bashbrew manifests 
      if: steps.commit-dockerfiles.outputs.bumped == 'yes'
      run: |
        go run update.go -manifest -commit $(git log -1 --format='format:%H' HEAD)

    - name: Commit and push changes
      if: steps.commit-dockerfiles.outputs.bumped == 'yes'
      run: |
        git add library/caddy
        if output=$(git status --porcelain) && [ ! -z "$output" ]; then
          git commit -m "Bump Caddy version" -a
          git push
        fi

    - name: Build images on Linux
      if: steps.commit-dockerfiles.outputs.bumped == 'yes'
      run: |
        bashbrew build --pull always caddy

    - name: Push images
      if: steps.commit-dockerfiles.outputs.bumped == 'yes'
      run: |
        wget https://github.com/estesp/manifest-tool/releases/download/v1.0.2/manifest-tool-linux-amd64 -O /usr/local/bin/manifest-tool
        chmod +x /usr/local/bin/manifest-tool
        echo ${{ secrets.DOCKERHUB_TOKEN }} | docker login --username ${{ secrets.DOCKERHUB_USERNAME }} --password-stdin
        bashbrew push caddy
        bashbrew put-shared caddy

    - name: Ping microbadger
      if: steps.commit-dockerfiles.outputs.bumped == 'yes'
      run: curl -X POST https://hooks.microbadger.com/images/productionwentdown/caddy/OVgee2in7ldJ7GgTZiScpwH_mTs=