Add option for usage without config

src/main.rs

@@ -27,6 +27,10 @@ struct Options {
     #[structopt(short, long, value_name = "path", default_value = "/etc/noise-server/config.toml")]
     config: PathBuf,
 
+    /// Don't use config
+    #[structopt(short = "C", long)]
+    no_config: bool,
+
     /// Path to database
     #[structopt(short, long, value_name = "path", default_value = DEFAULT_DATABASE_PATH)]
     database_path: PathBuf,
@@ -93,6 +97,9 @@ async fn load_sqlite_template(sqlite_handle: &mut SqliteConnection) -> sqlx::Res
 }
 
 fn get_config(options: &Options) -> std::io::Result<Config> {
+    if options.no_config {
+        Ok(Config::default())
+    } else {
     let mut config_file = File::open(&options.config)?;
     let mut config_string = String::new();
     config_file.read_to_string(&mut config_string)?;
@@ -104,3 +111,4 @@ fn get_config(options: &Options) -> std::io::Result<Config> {
         )
     )
 }
+}