Configs_stories

US Configs : Parse, Merge, and Convert Configuration Objects

• US Configs : Parse, Merge, and Convert Configuration Objects
  • methods uml diagram
  • 1. User Story: Parse Configuration File
  • 2. User Story: Parse Configuration String
  • 3. User Story: Merge Multiple Configurations
  • 4. User Story: Convert Configuration to Python Object
  • Common Acceptance Criteria Across All Stories
  • Definition of Done (DoD):
  • Code location
  • Test location

---

methods uml diagram

classDiagram
    %% Module functions
    class Configs {
        +parse_file(path: str) Config
        +parse_string(string: str) Config
        +merge_configs(configs: T.Sequence[Config]) Config
        +to_object(config: Config, resolve: bool = True) object
    }

    %% Config Type Alias
    class Config {
        <<typeAlias>>
        oc.ListConfig | oc.DictConfig
    }

    Configs ..> oc.OmegaConf : uses
    Configs ..> Config : returns/uses

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1. User Story: Parse Configuration File

Title:
As a developer, I want to parse configuration files from a specified path so that I can load application settings dynamically.

Description:
The parse_file function allows developers to load a configuration file located at a given file path. This enables flexible management of settings across various environments.

Acceptance Criteria:

• The function accepts a string path to the configuration file.
• It returns an OmegaConf configuration object representing the file contents.
• If the file path is invalid or the file format is unsupported, it raises an appropriate error.

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2. User Story: Parse Configuration String

Title:
As a developer, I want to parse configuration strings so that I can dynamically create configuration objects from text.

Description:
The parse_string function allows developers to create a configuration object directly from a string input. This is useful for testing or dynamically generating configurations.

Acceptance Criteria:

• The function accepts a string representing the configuration content.
• It returns an OmegaConf configuration object.
• If the string is malformed or invalid, an appropriate error is raised.

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3. User Story: Merge Multiple Configurations

Title:
As a developer, I want to merge multiple configuration objects so that I can combine settings from different sources into a single configuration.

Description:
The merge_configs function merges a sequence of OmegaConf configuration objects into one, ensuring no conflicting or redundant settings across configurations.

Acceptance Criteria:

• The function accepts a sequence of OmegaConf configuration objects.
• It returns a single merged configuration object.
• Conflicting keys are resolved using OmegaConf's merging logic.
• If the input is empty or contains invalid types, an appropriate error is raised.

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4. User Story: Convert Configuration to Python Object

Title:
As a developer, I want to convert configuration objects into Python-native data structures so that I can work with them directly in my code.

Description:
The to_object function converts an OmegaConf configuration object into standard Python data structures like dictionaries or lists, enabling easy interaction and manipulation.

Acceptance Criteria:

• The function accepts an OmegaConf configuration object and an optional resolve flag (default: True).
• It returns the configuration as a Python object (e.g., dictionary, list).
• If resolve=True, variables within the configuration are resolved before conversion.
• If the configuration object is invalid, an appropriate error is raised.

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Common Acceptance Criteria Across All Stories

• The functions are tested with various input scenarios, including valid, invalid, and edge cases.
• Documentation is provided for each function, including usage examples.
• Errors and exceptions are properly handled, with meaningful error messages for developers.
• All functions are integrated into the broader configuration management system of the application.

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Definition of Done (DoD):

• All functions (parse_file, parse_string, merge_configs, to_object) are implemented and tested.
• Unit tests cover valid, invalid, and edge cases.
• Documentation includes clear examples and explanations for each function.
• Functions are robust, handling errors gracefully with meaningful messages.
• Code passes peer review and adheres to the project's coding standards.

Code location

src/regression_model_template/io/configs.py

Test location

tests/io/test_configs.py