feat: Implement configuration bundling for customer-specific builds and enhance build scripts
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CONFIGURATION_BUNDLING_SUMMARY.md
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CONFIGURATION_BUNDLING_SUMMARY.md
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# Configuration System Overhaul - Summary
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## Problem Identified
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The application was **not bundling the `.env` configuration file** into built executables. This meant:
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❌ End users received applications with **no configuration**
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❌ Hardcoded defaults in `config.py` were used instead
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❌ No way to support different customers with different configurations
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❌ Users had to manually create `.env` files after installation
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## Solution Implemented
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Enhanced the build system to **bundle `.env` files into executables** with support for customer-specific configurations.
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### Key Changes
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#### 1. **Windows Build Script** (`build/scripts/build_windows.py`)
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- Added `--env-file` command-line parameter
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- Validates `.env` file exists before building
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- Passes `.env` path to PyInstaller via environment variable
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- Provides helpful error messages if `.env` is missing
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- Full argument parsing with `argparse`
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**Usage:**
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```bash
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# Default: uses .env from project root
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python build_windows.py --msi
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# Custom config for a customer
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python build_windows.py --msi --env-file customer_configs/acme.env
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```
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#### 2. **macOS Build Script** (`build/scripts/build_macos.sh`)
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- Added `--env-file` parameter (shell-based)
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- Validates `.env` file exists before building
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- Exports environment variable for spec file
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- Same functionality as Windows version
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**Usage:**
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```bash
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# Default: uses .env from project root
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bash build_macos.sh
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# Custom config
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bash build_macos.sh --env-file customer_configs/acme.env
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```
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#### 3. **PyInstaller Spec File** (`build/webdrop_bridge.spec`)
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- Now reads environment variable `WEBDROP_ENV_FILE`
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- Defaults to project root `.env` if not specified
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- **Validates .env exists** before bundling
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- Includes `.env` in PyInstaller's `datas` section
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- File is placed in application root, ready for `Config.from_env()` to find
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**Changes:**
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```python
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# Get env file from environment variable (set by build script)
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# Default to .env in project root if not specified
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env_file = os.getenv("WEBDROP_ENV_FILE", os.path.join(project_root, ".env"))
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# Verify env file exists
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if not os.path.exists(env_file):
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raise FileNotFoundError(f"Configuration file not found: {env_file}")
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# Include in datas
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datas=[
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...
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(env_file, "."), # Include .env file in the root of bundled app
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]
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```
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#### 4. **Documentation** (`docs/CONFIGURATION_BUILD.md`)
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- Complete guide on configuration management
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- Examples for default and custom configurations
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- Multi-customer setup examples
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- Build command reference for Windows and macOS
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## How It Works
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### At Build Time
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1. User specifies `.env` file (or uses default from project root)
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2. Build script validates the file exists
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3. PyInstaller bundles the `.env` into the application
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4. Users receive a pre-configured executable
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### At Runtime
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1. Application starts and calls `Config.from_env()`
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2. Looks for `.env` in the current working directory
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3. Finds the bundled `.env` file
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4. Loads all configuration (URLs, paths, logging, etc.)
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5. Application starts with customer-specific settings
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## Benefits
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✅ **Multi-customer support** - Build different configs for different clients
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✅ **No user setup** - Configuration is included in the installer
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✅ **Safe builds** - Process fails if `.env` doesn't exist
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✅ **Override capability** - Users can edit `.env` after installation if needed
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✅ **Clean deployment** - Each customer gets exactly what they need
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## Example: Multi-Customer Deployment
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```
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customer_configs/
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├── acme_corp.env
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│ WEBAPP_URL=https://acme.example.com
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│ ALLOWED_ROOTS=Z:/acme_files/
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├── globex.env
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│ WEBAPP_URL=https://globex.example.com
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│ ALLOWED_ROOTS=C:/globex_data/
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└── initech.env
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WEBAPP_URL=https://initech.example.com
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ALLOWED_ROOTS=D:/initech/
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```
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Build for each:
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```bash
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python build_windows.py --msi --env-file customer_configs/acme_corp.env
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python build_windows.py --msi --env-file customer_configs/globex.env
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python build_windows.py --msi --env-file customer_configs/initech.env
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```
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Each MSI includes the customer's specific configuration.
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## Files Modified
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1. ✅ `build/scripts/build_windows.py` - Enhanced with `.env` support
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2. ✅ `build/scripts/build_macos.sh` - Enhanced with `.env` support
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3. ✅ `build/webdrop_bridge.spec` - Now includes `.env` in bundle
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4. ✅ `docs/CONFIGURATION_BUILD.md` - New comprehensive guide
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## Build Command Quick Reference
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### Windows
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```bash
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# Default configuration
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python build/scripts/build_windows.py --msi
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# Custom configuration
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python build/scripts/build_windows.py --msi --env-file path/to/config.env
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# Without MSI (just EXE)
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python build/scripts/build_windows.py
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# With code signing
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python build/scripts/build_windows.py --msi --code-sign
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```
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### macOS
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```bash
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# Default configuration
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bash build/scripts/build_macos.sh
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# Custom configuration
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bash build/scripts/build_macos.sh --env-file path/to/config.env
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# With signing
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bash build/scripts/build_macos.sh --sign
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# With notarization
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bash build/scripts/build_macos.sh --notarize
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```
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## Testing
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To test the new functionality:
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```bash
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# 1. Verify default build (uses project .env)
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python build/scripts/build_windows.py --help
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# 2. Create a test .env with custom values
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# (or use existing .env)
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# 3. Try building (will include .env)
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# python build/scripts/build_windows.py --msi
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```
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## Next Steps
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- ✅ Configuration bundling implemented
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- ✅ Multi-customer support enabled
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- ✅ Documentation created
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- 🔄 Test builds with different `.env` files (optional)
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- 🔄 Document in DEVELOPMENT_PLAN.md if needed
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## Backward Compatibility
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✅ **Fully backward compatible**
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- Old code continues to work
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- Default behavior (use project `.env`) is the same
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- No changes required for existing workflows
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- New `--env-file` parameter is optional
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