Move config loading to a separate function.

Author: hgaiser

src/config.rs

@@ -66,6 +66,29 @@ impl Config {
 
 		Ok(config)
 	}
+
+	pub async fn load_or_create(path: &PathBuf) -> Result<Config, ()> {
+		if path.exists() {
+			Self::read_from_file(path)
+		} else {
+			tracing::info!(
+				"No config file found at {}, creating a default config file.",
+				path.display()
+			);
+			let config = Self::default();
+
+			let serialized =
+				toml::to_string_pretty(&config).map_err(|e| tracing::error!("Failed to serialize config: {e}"))?;
+
+			let dir = path
+				.parent()
+				.ok_or_else(|| tracing::error!("Failed to get parent directory of config file."))?;
+			std::fs::create_dir_all(dir).map_err(|e| tracing::error!("Failed to create config directory: {e}"))?;
+			std::fs::write(path, serialized).map_err(|e| tracing::error!("Failed to save config file: {e}"))?;
+
+			Ok(config)
+		}
+	}
 }
 
 impl Default for Config {

src/main.rs

@@ -42,35 +42,12 @@ async fn main() -> Result<(), ()> {
 		.init();
 
 	// Ensure rustls has a single crypto provider selected at process start.
-	// When multiple crypto backends (ring, aws-lc-rs) are present the crate
-	// requires an explicit choice. Install the default provider now.
-	// Prefer the `ring` provider explicitly to avoid runtime ambiguity
-	// when multiple crypto backends are present in the dependency graph.
-	// Construct the provider from the `ring` module and install it.
-	let provider = rustls::crypto::ring::default_provider();
+	// The aws-lc-rs backend is the default for rustls and is installed here
+	// to avoid runtime ambiguity when multiple crypto backends are present.
+	let provider = rustls::crypto::aws_lc_rs::default_provider();
 	let _ = provider.install_default();
 
-	let mut config;
-	if args.config.exists() {
-		config = Config::read_from_file(args.config).unwrap_or_else(|()| std::process::exit(1));
-	} else {
-		tracing::info!(
-			"No config file found at {}, creating a default config file.",
-			args.config.display()
-		);
-		config = Config::default();
-
-		let serialized_config =
-			toml::to_string_pretty(&config).map_err(|e| tracing::error!("Failed to serialize config: {e}"))?;
-
-		let config_dir = args
-			.config
-			.parent()
-			.ok_or_else(|| tracing::error!("Failed to get parent directory of config file."))?;
-		std::fs::create_dir_all(config_dir).map_err(|e| tracing::error!("Failed to create config directory: {e}"))?;
-		std::fs::write(args.config, serialized_config)
-			.map_err(|e| tracing::error!("Failed to save config file: {e}"))?;
-	}
+	let mut config = Config::load_or_create(&args.config).await?;
 
 	// Resolve these paths so that the rest of the code doesn't need to.
 	let cert_path = config.webserver.certificate.to_string_lossy().to_string();