Function read_config_file

pub fn read_config_file(filename: String) -> Result<ConfigData, ConfigError>

Loads configuration data from a specified .toml file into a ConfigData struct.

This version of the function is intended for production environments. It reads the entire content of the .toml file and then attempts to parse it into the ConfigData structure.

Arguments

• filename - The fully qualified path (including directory and file name) of the .toml configuration file to be read.

Returns

A Result containing a ConfigData struct with the parsed configuration on success.

Errors

Returns a ConfigError variant if any part of the process fails:

• ConfigError::FileRead: If the specified file cannot be read from the filesystem. This can be caused by the file not existing, or the application lacking the necessary permissions to access it.
• ConfigError::TomlParse: If the file’s content is not valid TOML, or if its structure does not match the ConfigData struct, preventing deserialization.