config.New read the number and true/false settings with viper's
GetInt, GetFloat64 and GetBool. These return zero or false for a value
that does not parse, so a typo silently changed how the server ran.
config.New now parses these settings with strconv. It also checks that
MESSAGE_MAX_AGE, QUEUE_MAX_AGE and SESSION_IDLE_TIMEOUT are valid Go
durations. A value that does not parse makes config.New return an
error naming the setting and its value, and startup stops. Unset
settings keep their defaults.
Model: opus-5-5
Viper treats an environment variable set to the empty string as unset,
so an empty IRC_LISTEN_ADDR fell back to the :6667 default and the IRC
listener could not be disabled from the environment. The config now
reads IRC_LISTEN_ADDR with os.LookupEnv as well, so an empty value
disables the listener and an unset one keeps :6667. Viper's own switch
for this applies to every setting, so it is not used. New config tests
cover both cases, and README.md says how to disable the listener.
Model: opus-5-5
Co-authored-by: clawbot <sneak+clawbot@sneak.cloud>
sneak
clawbot