cargo clippy fixes

src/database/hierarchies.rs

@@ -202,9 +202,9 @@ pub fn fetch_or_create_dir<C: Connection<Backend = Sqlite>>(
                 };
                 insert_entry(connection, directory_entry)?;
 
-                if parent.is_some() {
+                if let Some(parent) = parent {
                     let has_entry = Entry {
-                        entity: parent.unwrap(),
+                        entity: parent,
                         attribute: String::from(HIER_HAS_ATTR),
                         value: EntryValue::Address(new_directory_address.clone()),
                     };

src/filesystem.rs

@@ -216,8 +216,7 @@ fn _process_directory_entry<P: AsRef<Path>>(
     let existing_files_read = existing_files.read().unwrap();
     let maybe_existing_file = existing_files_read
         .iter()
-        .find(|file| file.path == normalized_path_str)
-        .clone();
+        .find(|file| file.path == normalized_path_str);
 
     if let Some(existing_file) = maybe_existing_file {
         let existing_file = existing_file.clone();