SimpleCommandLinePropertySource class

A CommandLinePropertySource that adapts CommandLineArgs into a resolvable PropertySource.

This class wraps a parsed list of command-line arguments and exposes them as key-value properties, allowing flexible configuration using flags like:

• --key=value
• --key value
• multiple --key=value for lists

Behavior

• If a key is not present, the property will be null.
• If present without value (--debug), returns an empty list.
• If present with one value, returns that value as a string.
• If present multiple times, returns all values as a comma-separated string.

Example usage:

final args = ['--env=prod', '--debug', '--features=a', '--features=b'];
final propertySource = SimpleCommandLinePropertySource(args);

print(propertySource.getProperty('env'));       // "prod"
print(propertySource.getProperty('debug'));     // ""
print(propertySource.getProperty('features'));  // "a,b"
print(propertySource.containsProperty('debug')); // true

This class is often registered within the MutablePropertySources collection and resolved through a PropertyResolver during app bootstrap.