Struct LayeredConfigBuilder 

pub struct LayeredConfigBuilder<T> { /* private fields */ }

Builder for creating layered configuration.

Loads configuration from multiple sources with later sources overriding earlier ones.

Implementations

impl<T: DeserializeOwned + Default + Clone> LayeredConfigBuilder<T>

pub fn new() -> Self

Create with default base configuration.

pub fn with_base(base: T) -> Self

Create with a specific base configuration.

impl<T: DeserializeOwned + Clone> LayeredConfigBuilder<T>

pub fn load_optional(self, path: impl AsRef<Path>) -> Self

Load and merge from a file if it exists.

pub fn load(self, path: impl AsRef<Path>) -> Result<Self>

Load and merge from a file (error if not found).

pub fn loaded_from(&self) -> &[PathBuf]

Get the list of files that were loaded.

pub fn build(self) -> T

Build the final configuration.

Trait Implementations

impl<T: DeserializeOwned + Default + Clone> Default for LayeredConfigBuilder<T>

fn default() -> Self

Returns the “default value” for a type.