Struct ArgsSource 

pub struct ArgsSource { /* private fields */ }

CLI override source definition.

ArgsSource parses the same --config, --profile, and --set key=value flags that tier accepts through its reusable clap integration.

Examples

use serde::{Deserialize, Serialize};
use tier::{ArgsSource, ConfigLoader};

#[derive(Debug, Clone, Serialize, Deserialize)]
struct AppConfig {
    port: u16,
}

impl Default for AppConfig {
    fn default() -> Self {
        Self { port: 3000 }
    }
}

let loaded = ConfigLoader::new(AppConfig::default())
    .args(ArgsSource::from_args(["app", "--set", "port=7000"]))
    .load()?;

assert_eq!(loaded.port, 7000);

Implementations

impl ArgsSource

pub fn from_env() -> Self

Captures the current process arguments.

pub fn from_args<I, S>(iter: I) -> Self

where I: IntoIterator<Item = S>, S: Into<String>,

Creates an argument source from explicit argv values.

Trait Implementations

impl Clone for ArgsSource

fn clone(&self) -> ArgsSource

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ArgsSource

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

Formats the value using the given formatter.