Firebase Multi-Env Manager 🚀

A production-ready Dart CLI tool designed to streamline Firebase environment management for Flutter projects. Safely switch between dev, staging, and prod environments with automatic configuration updates, backups, and validation.

✨ Features

• Platform-Specific Handlers:
  • Android: Automatically updates google-services.json, applicationId in build.gradle, and android:label in AndroidManifest.xml.
  • iOS: Updates GoogleService-Info.plist, PRODUCT_BUNDLE_IDENTIFIER in project.pbxproj, and CFBundleDisplayName in Info.plist.
• Safety First:
  • Automatic Backups: Creates a timestamped backup of sensitive files before every switch.
  • Rollback System: Quickly restore previous configurations if a switch fails.
  • Validation: Checks for project integrity and missing config files before making changes.
• Advanced CLI:
  • Interactive Mode: Select environments from a menu.
  • CI/CD Ready: Supports non-interactive flags and proper exit codes for automation.
  • Diffing: Compare environment configurations directly from the terminal.
• Modular & Extensible: Clean architecture with separate layers for services, handlers, and CLI logic.

🚀 Getting Started

Prerequisites

• Dart SDK (^3.10.0)
• A Flutter project with standard android/ and ios/ structures.

Configuration

Add the firebase_multi_env section to your pubspec.yaml:

firebase_multi_env:
  default: dev
  environments:
    dev:
      android_config: firebase/dev/google-services.json
      ios_config: firebase/dev/GoogleService-Info.plist
      android_application_id: com.example.app.dev
      ios_bundle_id: com.example.app.dev
      app_name: MyApp Dev
    prod:
      android_config: firebase/prod/google-services.json
      ios_config: firebase/prod/GoogleService-Info.plist
      android_application_id: com.example.app
      ios_bundle_id: com.example.app
      app_name: MyApp

🛠 Usage

Run the tool using dart bin/firebase_multi_env_manager.dart or activate it globally.

Common Commands

• List environments:

  firebase_multi_env --list
  

• Switch environment:

  firebase_multi_env --env dev
  

• Compare configurations:

  firebase_multi_env --diff dev,prod
  

• Rollback to last backup:

  firebase_multi_env --rollback
  

• CI Mode:

  firebase_multi_env --env prod --ci
  

📂 Project Structure

lib/
├── cli/          # Argument parsing and user interaction
├── core/         # Shared constants, logger, and exceptions
├── handlers/     # Platform-specific (Android/iOS) modification logic
├── services/     # Core business logic (Backup, Config, Validator)
└── env_switcher.dart  # Main orchestrator

🧪 Testing

Run the full test suite with:

dart test -j 1

📄 License

This project is licensed under the MIT License - see the LICENSE file for details.