better error handling

src/main.rs

@@ -39,35 +39,18 @@ fn init() -> io::Result<()> {
     if is_inited() {
         return Err(io::Error::new(io::ErrorKind::AlreadyExists, "Reinitialization attempted"));
     }
-    match fs::create_dir(STORAGE_FOLDER) {
+    fs::create_dir(STORAGE_FOLDER)?;
-        Ok(_) => {
+    println!("Storage folder created");
-            println!("Create folder for storage"); // TODO: make it only in debug mode
-        },
-        Err(_) => return Err(io::Error::new(io::ErrorKind::Other, "Can`t create storage folder")),
-    }
 
-    match fs::File::create(STORAGE_PATH) {
+    fs::File::create(STORAGE_PATH)?;
-        Ok(_) => {
+    println!("Storage db created");
-            println!("Storage db created");
-        },
-        Err(_) => {
-            return Err(io::Error::new(io::ErrorKind::Other, "Can`t create mps.db")); // TODO: better error, not just Other
-        }
-    }
-    
     Ok(())
 }
 
 fn add() -> io::Result<()> {
-    let mut file = match fs::OpenOptions::new()
+    let mut file = fs::OpenOptions::new()
         .write(true)
-        .open(STORAGE_PATH)
+        .open(STORAGE_PATH)?;
-        {
-            Ok(file) => file,
-            Err(_) => {
-                return Err(io::Error::new(io::ErrorKind::Other, "can`t open database")); // TODO: better error handling
-            }
-        };
 
     writeln!(file, "new item")?;
     Ok(())