get_duration

Returns key in dotenv content parsed as a human-written duration ("1h30m", "2d", "500ms"), or default when it is absent or does not parse.

Sharing this format with the duration module’s own parse does not need that module enabled: env stands alone, like every module here.

Import

use helpers4::env::get_duration;

Cargo feature env (enabled by default). To compile only this module:

cargo add helpers4 --no-default-features --features env

or in Cargo.toml:

[dependencies]
helpers4 = { version = "0.0.7", default-features = false, features = ["env"] }

Signature

pub fn get_duration(content: &str, key: &str, default: Duration) -> Duration

Parameters

Parameter	Type	Description
content	&str	The dotenv text to read.
key	&str	The variable name to look up.
default	Duration	Returned when key is absent or its value does not parse.

Returns

Duration — The parsed duration, or default.

Examples

use helpers4::env::get_duration;
use std::time::Duration;

let content = "TIMEOUT=1h30m\nNAME=not-a-duration\n";
assert_eq!(get_duration(content, "TIMEOUT", Duration::ZERO), Duration::from_secs(5400));
assert_eq!(get_duration(content, "NAME", Duration::ZERO), Duration::ZERO);
assert_eq!(get_duration(content, "MISSING", Duration::from_secs(30)), Duration::from_secs(30));

Source

src/env/get_duration.rs