build-stable.yml

name: Build Flutter Stable

on:
  schedule:
    - cron: "0 0 * * *"
  workflow_dispatch:

env:
  DOCKER_REPO: "chiragji/flutter-aio"

jobs:
  get-flutter-version:
    name: Get Latest Flutter Version
    runs-on: ubuntu-latest

    outputs:
      flutter_version: ${{ steps.get-version.outputs.flutter_version }}

    steps:
      - name: Get the latest Flutter version
        id: get-version
        run: |
          latest_version=$(curl -s https://storage.googleapis.com/flutter_infra_release/releases/releases_linux.json \
            | jq -r '.releases[] | select(.channel=="stable") | .version' | head -n 1)
          
          echo "Latest Flutter version is $latest_version"
          echo "flutter_version=$latest_version" >> $GITHUB_OUTPUT

  check-docker-tags:
    name: Check Docker Image Tags
    runs-on: ubuntu-latest
    needs: get-flutter-version

    outputs:
      version_exists: ${{ steps.check-existence.outputs.version_exists }}

    steps:
      - name: Fetch existing Docker image tags
        id: get-tags
        run: |
          tags=$(curl -s "https://registry.hub.docker.com/v2/repositories/$DOCKER_REPO/tags?page_size=100" | jq -r '.results[].name')
          echo "Docker tags: $tags"
          echo "tags=$tags" >> $GITHUB_OUTPUT

      - name: Check if Flutter version exists in Docker tags
        id: check-existence
        run: |
          if echo "${{ steps.get-tags.outputs.tags }}" | grep -q "${{ needs.get-flutter-version.outputs.flutter_version }}"; then
            echo "Flutter version ${{ needs.get-flutter-version.outputs.flutter_version }} already exists as a Docker tag."
            echo "version_exists=true" >> $GITHUB_OUTPUT
          else
            echo "Flutter version ${{ needs.get-flutter-version.outputs.flutter_version }} does not exist as a Docker tag."
            echo "version_exists=false" >> $GITHUB_OUTPUT
            echo "BUILD_TAG=${{ needs.get-flutter-version.outputs.flutter_version }}" >> $GITHUB_OUTPUT
          fi

  build-stable:
    runs-on: ubuntu-latest
    needs: check-docker-tags
    if: needs.check-docker-tags.outputs.version_exists == 'false'
    steps:
      - uses: actions/checkout@v4
      - name: setup buildx
        uses: docker/setup-buildx-action@v3.7.1
        with:
          install: true
      - name: Login to Docker Hub
        uses: docker/login-action@v3.3.0
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      - name: Build and push image
        run: |
          echo "Starting building tags latest, $BUILD_TAG"
          docker build \
            -t "$DOCKER_REPO":latest -t "$DOCKER_REPO:$BUILD_TAG" \
            --push \
            --platform linux/amd64 \
            .