add arg to define root directory

src/main.rs

@@ -41,6 +41,10 @@ struct Args {
     /// Port to listen
     #[arg(short, long, default_value_t = 8000)]
     port: u16,
+
+    /// Markdown documents directory root
+    #[arg(short, long)]
+    root: PathBuf,
 }
 
 
@@ -49,11 +53,18 @@ struct AppState {
     syntax_set: Arc<SyntaxSet>,
     theme_set: Arc<ThemeSet>,
     tx: Arc<broadcast::Sender<String>>,
+    root: PathBuf,
 }
 
 #[tokio::main]
 async fn main() {
     let args = Args::parse();
+
+    if !args.root.is_dir() {
+        eprintln!("Root is not a directory");
+        std::process::exit(1);
+    }
+
     tracing_subscriber::fmt::init();
 
     let ss = SyntaxSet::load_defaults_newlines();
@@ -65,6 +76,7 @@ async fn main() {
         syntax_set: Arc::new(ss),
         theme_set: Arc::new(ts),
         tx: Arc::new(tx),
+        root: args.root,
     };
 
     let watcher_state = state.clone();
@@ -95,8 +107,10 @@ fn resolve_addr(host: &str, port: u16) -> io::Result<SocketAddr> {
         .ok_or_else(|| io::Error::new(io::ErrorKind::NotFound, "Не удалось разрешить адрес"))
 }
 
-async fn root() -> Result<Html<String>, StatusCode> {
+async fn root(
-    render_directory_index(&PathBuf::from("./notes"), "").await
+    State(state): State<AppState>,
+) ->Result<Html<String>, StatusCode> {
+    render_directory_index(&PathBuf::from(state.root), "").await
 }
 
 async fn sse_handler(
@@ -150,7 +164,7 @@ async fn serve_file(
         return Err(StatusCode::NOT_FOUND);
     }
 
-    let mut requested_path = PathBuf::from("./notes");
+    let mut requested_path = PathBuf::from(&state.root);
     requested_path.push(&full_path);
 
     // Безопасность путей
@@ -159,7 +173,7 @@ async fn serve_file(
         Err(_) => return Err(StatusCode::NOT_FOUND),
     };
 
-    let base_dir = match fs::canonicalize("./notes").await {
+    let base_dir = match fs::canonicalize(&state.root).await {
         Ok(p) => p,
         Err(_) => return Err(StatusCode::INTERNAL_SERVER_ERROR),
     };