Struct EnvVarLoader 

pub struct EnvVarLoader { /* private fields */ }

Loader for OSP__... environment variables.

Implementations

impl EnvVarLoader

pub fn from_process_env() -> Self

Captures the current process environment.

pub fn from_pairs<I, K, V>(vars: I) -> Self

where I: IntoIterator<Item = (K, V)>, K: AsRef<str>, V: AsRef<str>,

Creates a loader from explicit key-value pairs.

Examples

use osp_cli::config::{ConfigLoader, EnvVarLoader};

let loader = EnvVarLoader::from_pairs([("OSP__output__format", "json")]);
let layer = loader.load().unwrap();

assert_eq!(layer.entries()[0].key, "output.format");

Trait Implementations

impl Clone for EnvVarLoader

fn clone(&self) -> EnvVarLoader

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl ConfigLoader for EnvVarLoader

fn load(&self) -> Result<ConfigLayer, ConfigError>

Reads the source and returns it as a config layer.

impl Debug for EnvVarLoader

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for EnvVarLoader

fn default() -> EnvVarLoader

Returns the “default value” for a type.

impl<K, V> FromIterator<(K, V)> for EnvVarLoader

where K: AsRef<str>, V: AsRef<str>,

fn from_iter<T: IntoIterator<Item = (K, V)>>(iter: T) -> Self

Creates a value from an iterator.