Clear the buffer when annotation is complete, triggering the next file to load

src/main.rs

@@ -443,7 +443,7 @@ fn main() {
                 let path_guard = path.lock();
                 let path = path_guard.as_ref().unwrap();
 
-                let buf = buf.lock();
+                let mut buf = buf.lock();
 
                 annotations.clear();
                 annotations.push(Annotation {
@@ -454,7 +454,7 @@ fn main() {
                 });
 
                 write(&annotations, path.as_path());
-
+                buf.clear();
             }
             Command::AnnotateSince(class) => {
                 let end = *idx.lock();
@@ -484,6 +484,7 @@ fn main() {
 
                         if annotation_complete(&annotations, buf.lock().len()) {
                             write(&annotations, path.as_path());
+                            buf.lock().clear();
                         }
                     }
                 }