Function parse_duration

atomic-cli/src/commands/identity/agent/mod.rs:184–214

Parse a duration like `30d`, `12h`, `90m`, or a bare number of days.

(raw: &str)

/// Parse a duration like `30d`, `12h`, `90m`, or a bare number of days.
pub fn parse_duration(raw: &str) -> CliResult<Duration> {
    let raw = raw.trim();
    let invalid = || CliError::InvalidArgument {
        message: format!(
            "--expires: '{raw}' is not a duration (try 30d, 12h, 90m, or a number of days)"
        ),
    };

    let (value, unit) = match raw.chars().last() {
        Some(c) if c.is_ascii_alphabetic() => (&raw[..raw.len() - 1], c),
        Some(_) => (raw, 'd'),
        None => return Err(invalid()),
    };

    let value: i64 = value.trim().parse().map_err(|_| invalid())?;
    if value <= 0 {
        return Err(CliError::InvalidArgument {
            message: "--expires must be a positive duration; a delegation that is already \
                      expired would authorize nothing"
                .to_string(),
        });
    }

    match unit.to_ascii_lowercase() {
        'd' => Ok(Duration::days(value)),
        'h' => Ok(Duration::hours(value)),
        'm' => Ok(Duration::minutes(value)),
        'w' => Ok(Duration::weeks(value)),
        _ => Err(invalid()),
    }
}

/// The `urn:atomic:agent:<slug>` label for a software agent.
///