cloud_build/flutter_agy_docker/cloudbuild.yaml

# Copyright 2022 The Flutter Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

steps:
  # ==========================================
  # STEP 1: Build the Static Base Image
  # ==========================================
  - name: 'gcr.io/cloud-builders/docker'
    entrypoint: 'bash'
    args: ['-c', 'docker pull us-docker.pkg.dev/flutter-infra/flutter-infra/flutter_base:latest || exit 0']

  - name: 'gcr.io/cloud-builders/docker'
    dir: 'cloud_build/flutter_agy_docker/'
    args:
      - 'build'
      - '--cache-from'
      - 'us-docker.pkg.dev/flutter-infra/flutter-infra/flutter_base:latest'
      - '--build-arg'
      - 'FLUTTER_VERSION=$_FLUTTER_VERSION'
      - '-t'
      - 'us-docker.pkg.dev/flutter-infra/flutter-infra/flutter_base:$_FLUTTER_VERSION'
      - '-f'
      - 'Dockerfile.base'
      - '.'

  # ==========================================
  # STEP 2: Build the Auto-Updating Dev Image
  # ==========================================
  - name: 'gcr.io/cloud-builders/docker'
    entrypoint: 'bash'
    args: ['-c', 'docker pull us-docker.pkg.dev/flutter-infra/flutter-infra/flutter_docker:latest || exit 0']

  - name: 'gcr.io/cloud-builders/docker'
    dir: 'cloud_build/flutter_agy_docker/'
    args:
      - 'build'
      - '--cache-from'
      - 'us-docker.pkg.dev/flutter-infra/flutter-infra/flutter_docker:latest'
      - '--build-arg'
      - 'FLUTTER_VERSION=$_FLUTTER_VERSION'
      # Force apt-get to run by injecting the unique build ID
      - '--build-arg'
      - 'CACHE_BUSTER=$BUILD_ID'
      - '-t'
      - 'us-docker.pkg.dev/flutter-infra/flutter-infra/flutter_docker:$_FLUTTER_VERSION'
      - '-f'
      - 'Dockerfile'
      - '.'

  # ==========================================
  # STEP 3: Conditionally Tag and Push 'latest', 'stable', or 'beta'
  # ==========================================
  - name: 'gcr.io/cloud-builders/docker'
    entrypoint: 'bash'
    args:
      - '-c'
      - |
        set -euo pipefail

        # Install curl and jq (handles both Debian and Alpine builder variants)
        # We temporarily disable exit-on-error to allow the fallback to work cleanly
        set +e
        apt-get update && apt-get install -y curl jq 2>/dev/null || apk add curl jq 2>/dev/null
        set -e

        # Fetch the JSON release data
        echo "Fetching Flutter release data..."
        JSON_DATA=$$(curl -sf https://storage.googleapis.com/flutter_infra_release/releases/releases_linux.json)

        if [ -z "$$JSON_DATA" ]; then
          echo "Error: Failed to fetch JSON release data from Google Cloud Storage."
          exit 1
        fi

        # Extract the stable and beta versions
        STABLE_VERSION=$$(echo "$$JSON_DATA" | \
          jq -r '.current_release.stable as $$stable_hash | .releases[] | select(.hash == $$stable_hash) | .version' | head -n 1)
        BETA_VERSION=$$(echo "$$JSON_DATA" | \
          jq -r '.current_release.beta as $$beta_hash | .releases[] | select(.hash == $$beta_hash) | .version' | head -n 1)

        # Validate that the versions were successfully parsed.
        # -z "$$STABLE_VERSION" checks if the variable is an empty string (e.g., if jq failed entirely).
        # "$$STABLE_VERSION" == "null" checks if jq succeeded but couldn't find the requested data in the JSON.
        if [ -z "$$STABLE_VERSION" ] || [ "$$STABLE_VERSION" == "null" ]; then
          echo "Error: STABLE_VERSION could not be parsed from JSON. The JSON structure may have changed."
          exit 1
        fi

        if [ -z "$$BETA_VERSION" ] || [ "$$BETA_VERSION" == "null" ]; then
          echo "Error: BETA_VERSION could not be parsed from JSON. The JSON structure may have changed."
          exit 1
        fi

        echo "Current stable version is: $$STABLE_VERSION"
        echo "Current beta version is: $$BETA_VERSION"
        echo "Building for version: $_FLUTTER_VERSION"

        if [ "$_FLUTTER_VERSION" == "$$STABLE_VERSION" ]; then
          echo "Version $_FLUTTER_VERSION is stable. Tagging and pushing as latest and stable."

          # Tag the previously built versioned images
          docker tag us-docker.pkg.dev/flutter-infra/flutter-infra/flutter_base:$_FLUTTER_VERSION us-docker.pkg.dev/flutter-infra/flutter-infra/flutter_base:stable
          docker tag us-docker.pkg.dev/flutter-infra/flutter-infra/flutter_base:$_FLUTTER_VERSION us-docker.pkg.dev/flutter-infra/flutter-infra/flutter_base:latest
          docker tag us-docker.pkg.dev/flutter-infra/flutter-infra/flutter_docker:$_FLUTTER_VERSION us-docker.pkg.dev/flutter-infra/flutter-infra/flutter_docker:stable
          docker tag us-docker.pkg.dev/flutter-infra/flutter-infra/flutter_docker:$_FLUTTER_VERSION us-docker.pkg.dev/flutter-infra/flutter-infra/flutter_docker:latest

          # Push the new tags
          docker push us-docker.pkg.dev/flutter-infra/flutter-infra/flutter_base:stable
          docker push us-docker.pkg.dev/flutter-infra/flutter-infra/flutter_base:latest
          docker push us-docker.pkg.dev/flutter-infra/flutter-infra/flutter_docker:stable
          docker push us-docker.pkg.dev/flutter-infra/flutter-infra/flutter_docker:latest

        elif [ "$_FLUTTER_VERSION" == "$$BETA_VERSION" ]; then
          echo "Version $_FLUTTER_VERSION is beta. Tagging and pushing as beta."

          # Tag the previously built versioned images
          docker tag us-docker.pkg.dev/flutter-infra/flutter-infra/flutter_base:$_FLUTTER_VERSION us-docker.pkg.dev/flutter-infra/flutter-infra/flutter_base:beta
          docker tag us-docker.pkg.dev/flutter-infra/flutter-infra/flutter_docker:$_FLUTTER_VERSION us-docker.pkg.dev/flutter-infra/flutter-infra/flutter_docker:beta

          # Push the new tags
          docker push us-docker.pkg.dev/flutter-infra/flutter-infra/flutter_base:beta
          docker push us-docker.pkg.dev/flutter-infra/flutter-infra/flutter_docker:beta

        else
          echo "Version $_FLUTTER_VERSION is neither the stable nor beta release. Skipping extra tags."
        fi

substitutions:
  _FLUTTER_VERSION: "3.44.3"

# Push both the base and the final developer image to the registry
images:
  - 'us-docker.pkg.dev/flutter-infra/flutter-infra/flutter_base:$_FLUTTER_VERSION'
  - 'us-docker.pkg.dev/flutter-infra/flutter-infra/flutter_docker:$_FLUTTER_VERSION'

# Force Cloud Build to send logs directly to Cloud Logging
# instead of an autogenerated GCS bucket
options:
  logging: CLOUD_LOGGING_ONLY