fix empty file extensions (0.2.6)

Cargo.lock

@@ -228,7 +228,7 @@ checksum = "cf4b9d6a944f767f8e5e0db018570623c85f3d925ac718db4e06d0187adb21c1"
 
 [[package]]
 name = "breeze"
-version = "0.2.5"
+version = "0.2.6"
 dependencies = [
  "anyhow",
  "argh",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "breeze"
-version = "0.2.5"
+version = "0.2.6"
 edition = "2021"
 
 [dependencies]

src/engine.rs

@@ -148,10 +148,13 @@ impl Engine {
     #[async_recursion::async_recursion]
     pub async fn gen_saved_name(&self, ext: &str) -> String {
         // generate a 6-character alphanumeric string
-        let id: String = Alphanumeric.sample_string(&mut rand::thread_rng(), 6);
+        let mut saved_name: String = Alphanumeric.sample_string(&mut rand::thread_rng(), 6);
 
-        // path on disk
-        let saved_name = format!("{}.{}", id, ext);
+        // if we have an extension, add it now
+        if !ext.is_empty() {
+            saved_name.push('.');
+            saved_name.push_str(ext);
+        }
 
         if !self.has(&saved_name).await {
             saved_name