config: separate option for port setting

config.toml

@@ -1,5 +1,6 @@
 [http]
-host = "0.0.0.0:8080"
+host = "0.0.0.0"
+port = 8080
 cors = [
     "127.0.0.1:8000",
     "localhost:8000",

core/src/main.rs

@@ -20,7 +20,13 @@ async fn main() {
         .map(|e| e.parse().expect("parse CORS host"))
         .collect();
 
-    homedisk_server::serve(config.http.host.clone(), origins, db, config)
+    let host = format!(
+        "{host}:{port}",
+        host = config.http.host,
+        port = config.http.port
+    );
+
+    homedisk_server::serve(host, origins, db, config)
         .await
         .expect("start http server");
 }

utils/src/config/parser.rs

@@ -13,6 +13,7 @@ pub struct Config {
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct ConfigHTTP {
     pub host: String,
+    pub port: u16,
     pub cors: Vec<String>,
 }