Function required

nodedb/src/ctl/args.rs:61–65

Require a flag and return its value, or produce a uniform error.

(flags: &'a HashMap<String, String>, name: &str)

/// Require a flag and return its value, or produce a uniform error.
pub fn required<'a>(flags: &'a HashMap<String, String>, name: &str) -> Result<&'a String, String> {
    flags
        .get(name)
        .ok_or_else(|| format!("missing required flag --{name}"))
}

/// Parse a human-friendly duration string (`10s`, `5m`, `2h`). No
/// fractional units. Used by `--ttl`.