cocoapods-subspecs-organization

# CocoaPods - Subspecs Organization

Organize complex libraries into modular subspecs for better maintainability and optional features.

## What Are Subspecs?

Subspecs allow you to split a pod into logical modules that can be installed independently or as a group.

### Benefits

- **Modularity**: Separate core functionality from optional features
- **Selective Installation**: Users install only what they need
- **Reduced Dependencies**: Optional features don't force unnecessary dependencies
- **Better Organization**: Clear separation of concerns

## Basic Subspec Pattern

```ruby
Pod::Spec.new do |spec|
  spec.name = 'MyLibrary'
  spec.version = '1.0.0'

  # Main spec has no source files - all in subspecs
  spec.default_subspecs = 'Core'

  # Core subspec - installed by default
  spec.subspec 'Core' do |core|
    core.source_files = 'Source/Core/**/*.swift'
    core.frameworks = 'Foundation'
  end

  # Optional feature subspec
  spec.subspec 'Networking' do |networking|
    networking.source_files = 'Source/Networking/**/*.swift'
    networking.dependency 'MyLibrary/Core'  # Depends on Core
    networking.dependency 'Alamofire', '~> 5.0'
  end

  # Another optional feature
  spec.subspec 'UI' do |ui|
    ui.source_files = 'Source/UI/**/*.swift'
    ui.dependency 'MyLibrary/Core'
    ui.ios.frameworks = 'UIKit'
    ui.osx.frameworks = 'AppKit'
  end
end
```

## Dependency Patterns

### Subspec Dependencies

```ruby
Pod::Spec.new do |spec|
  spec.name = 'MySDK'

  # Foundation layer
  spec.subspec 'Core' do |core|
    core.source_files = 'Source/Core/**/*.swift'
  end

  # Networking depends on Core
  spec.subspec 'Networking' do |net|
    net.source_files = 'Source/Networking/**/*.swift'
    net.dependency 'MySDK/Core'
    net.dependency 'Alamofire', '~> 5.0'
  end

  # Analytics depends on Core and Networking
  spec.subspec 'Analytics' do |analytics|
    analytics.source_files = 'Source/Analytics/**/*.swift'
    analytics.dependency 'MySDK/Core'
    analytics.depen