fn build()

in aws_secretsmanager_agent/src/config.rs [293:345]
49 lines of code
4 McCabe index (conditional complexity)

    fn build(config_file: ConfigFile) -> Result<Config, Box<dyn std::error::Error>> {
        let config = Config {
            // Configurations that are allowed to be overridden.
            log_level: LogLevel::from_str(config_file.log_level.as_str())?,
            log_to_file: config_file.log_to_file,
            http_port: parse_num::<u16>(
                &config_file.http_port,
                INVALID_HTTP_PORT_ERR_MSG,
                None,
                Some(1..1024),
            )?,
            ttl: Duration::from_secs(parse_num::<u64>(
                &config_file.ttl_seconds,
                INVALID_TTL_SECONDS_ERR_MSG,
                Some(0..3601),
                None,
            )?),
            cache_size: match NonZeroUsize::new(parse_num::<usize>(
                &config_file.cache_size,
                INVALID_CACHE_SIZE_ERR_MSG,
                Some(0..1001),
                None,
            )?) {
                Some(x) => x,
                None => Err(INVALID_CACHE_SIZE_ERR_MSG)?,
            },
            ssrf_headers: config_file.ssrf_headers,
            ssrf_env_variables: config_file.ssrf_env_variables,
            path_prefix: config_file.path_prefix,
            max_conn: parse_num::<usize>(
                &config_file.max_conn,
                BAD_MAX_CONN_MSG,
                Some(1..1001),
                None,
            )?,
            region: config_file.region,
            ignore_transient_errors: config_file.ignore_transient_errors,
            validate_credentials: config_file.validate_credentials,
        };

        // Additional validations.
        if config.ssrf_headers.is_empty() {
            Err(EMPTY_SSRF_LIST_MSG)?;
        }
        if config.ssrf_env_variables.is_empty() {
            Err(EMPTY_ENV_LIST_MSG)?;
        }
        if !config.path_prefix.starts_with('/') {
            Err(BAD_PREFIX_MSG)?;
        }

        Ok(config)
    }