grass_docker-publish.yml

name: Docker Build and Push

# This workflow uses actions that are not certified by GitHub.
# They are provided by a third-party and are governed by
# separate terms of service, privacy policy, and support
# documentation.

on:
  schedule:
    - cron: '0 0 * * *' # Runs at 00:00 UTC daily
  push:
    branches: [ "main" ]
  workflow_dispatch:

permissions: # The permissions that the workflow has. The permissions are inherited from the job and can be customized.
    contents: write

env:
  IMAGE_NAME: 'mrcolorrain/grass' # The name of the image to be built and pushed 
  TAG: 'latest'
  MAX_DELAY: 60 # Maximum delay in seconds
  VERSION_FILE_PATH: '.githubworkflows.grass-current_version' # Path to the version file
  
jobs:
  build-and-push:
    runs-on: ubuntu-latest
    steps:
      - name: Randomized Delay
        run: |
          sleep $((RANDOM % $MAX_DELAY))
      
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Check for new version
        id: version-check
        run: |
          ARCH=$(uname -m)
          if [ "$ARCH" = "x86_64" ]; then
              ARCH="amd64"
          elif [ "$ARCH" = "aarch64" ]; then
              ARCH="arm64"
          else
              echo "Unsupported architecture: $ARCH" && exit 1
          fi
          echo "Detected runner arch: $ARCH"
          wget -q "https://chromewebstore.google.com/detail/${{ secrets.EXTENSION_ID }}" -O extension_page.html
          cat extension_page.html | grep -Po '(?<=\\\"version\\\": \\\")([0-9]+\.[0-9]+\.[0-9]+)(?=\\\",)' > latest_version.txt
          LATEST_VERSION=$(cat latest_version.txt)
          echo "Latest Version detected: $LATEST_VERSION"

          # Check the current version stored in the repository
          if [ -f ${{ env.VERSION_FILE_PATH }} ]; then
              echo "Current version file ${{ env.VERSION_FILE_PATH }} found"
          else
            echo "Can not find current version file ${{ env.VERSION_FILE_PATH }}. Creating a new one"
              mkdir -p $(dirname ${{ env.VERSION_FILE_PATH }})
              echo 'none' > ${{ env.VERSION_FILE_PATH }}
          fi
          CURRENT_VERSION=$(cat ${{ env.VERSION_FILE_PATH }})
          echo "Current Version: $CURRENT_VERSION"
          if [ "$CURRENT_VERSION" != "$LATEST_VERSION" ] || [ "${{ github.event_name }}" = "workflow_dispatch"  ]; then
              echo "New version detected: $LATEST_VERSION. Triggering build..."
              echo "latest_version=$LATEST_VERSION" >> $GITHUB_ENV
              echo "$LATEST_VERSION" > ${{ env.VERSION_FILE_PATH }}
              echo "trigger_build=true" >> $GITHUB_OUTPUT
          else
              echo "No new version detected. Skipping build"
              echo "trigger_build=false" >> $GITHUB_OUTPUT
          fi

      - name: Setup QEMU
        if: steps.version-check.outputs.trigger_build == 'true'
        uses: docker/setup-qemu-action@v3

      - name: Set up Docker Buildx
        if: steps.version-check.outputs.trigger_build == 'true'
        uses: docker/setup-buildx-action@v3

      - name: Login to DockerHub
        if: steps.version-check.outputs.trigger_build == 'true'
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}

      - name: Build and Push Docker Image
        if: steps.version-check.outputs.trigger_build == 'true'
        run: |
          docker buildx build \
            --platform linux/amd64,linux/arm64,linux/arm/v7 \
            -t ${{ env.IMAGE_NAME}}:${{ env.TAG }} \
            -f grass.dockerfile \
            . --push

      - name: Commit and push updates version file
        if: steps.version-check.outputs.trigger_build == 'true'
        run: |
          git config --global user.name 'GitHub Actions'
          git config --global user.email 'mrcolorr@users.noreply.github.com'
          git add ${{ env.VERSION_FILE_PATH }}
          git commit -m "Update version file to ${{ env.latest_version }}"
          git push

      - name: Create and push tag
        if: steps.version-check.outputs.trigger_build == 'true'
        run: |
          git config --global user.name 'GitHub Actions'
          git config --global user.email 'mrcolorr@users.noreply.github.com'
          git tag -a ${{ env.latest_version }} -m "Update to ${{ env.latest_version }}"
          git push origin ${{ env.latest_version }}