Ensure file exists when receiving events for zola serve

Closes getzola#2563

components/site/src/lib.rs

@@ -1046,7 +1046,9 @@ impl Site {
                 None => return Ok(()),
             };
 
-        for (feed, feed_filename) in feeds.into_iter().zip(self.config.languages[lang].feed_filenames.iter()) {
+        for (feed, feed_filename) in
+            feeds.into_iter().zip(self.config.languages[lang].feed_filenames.iter())
+        {
             if let Some(base) = base_path {
                 let mut components = Vec::new();
                 for component in base.components() {

src/fs_utils.rs

@@ -82,6 +82,12 @@ pub fn filter_events(
         }
         let path = event.event.paths[0].clone();
 
+        // Since we debounce things, some files might already not exist anymore by the
+        // time we get to them
+        if !path.exists() {
+            continue;
+        }
+
         if is_ignored_file(ignored_content_globset, &path) {
             continue;
         }