refactor: alert when file in the db is not equal to the file on the disk

src/main/frontend/fs/nfs.cljs

@@ -105,8 +105,7 @@
         (and local-file (.text local-file)))))
 
   (write-file! [this repo dir path content opts]
-    (let [{:keys [old-content]} opts
-          last-modified-at (db/get-file-last-modified-at repo path)
+    (let [last-modified-at (db/get-file-last-modified-at repo path)
           parts (string/split path "/")
           basename (last parts)
           sub-dir (->> (butlast parts)
@@ -135,32 +134,26 @@
                              (config/get-file-format))
                   pending-writes (state/get-write-chan-length)
                   draw? (and path (string/ends-with? path ".excalidraw"))]
-            (do
-              (p/let [_ (verify-permission repo file-handle true)
-                      _ (utils/writeFile file-handle content)
-                      file (.getFile file-handle)]
-                (when file
-                  (nfs-saved-handler repo path file))))
-            ;; (if (and local-content (or old-content
-            ;;                            ;; temporally fix
-            ;;                            draw?) new?
-            ;;          (or
-            ;;           draw?
-            ;;           ;; Writing not finished
-            ;;           (> pending-writes 0)
-            ;;           ;; not changed by other editors
-            ;;           not-changed?
-            ;;           new-created?))
-            ;;   (do
-            ;;     (p/let [_ (verify-permission repo file-handle true)
-            ;;             _ (utils/writeFile file-handle content)
-            ;;             file (.getFile file-handle)]
-            ;;       (when file
-            ;;         (nfs-saved-handler repo path file))))
-            ;;   (do
-            ;;     (js/alert (str "The file has been modified on your local disk! File path: " path
-            ;;                    ", please save your changes and click the refresh button to reload it."))))
-            )
+            (p/let [_ (verify-permission repo file-handle true)
+                    _ (utils/writeFile file-handle content)
+                    file (.getFile file-handle)]
+              (if (and local-content new?
+                       (or
+                        draw?
+                        ;; Writing not finished
+                        (> pending-writes 0)
+                        ;; not changed by other editors
+                        not-changed?
+                        new-created?))
+                (do
+                  (p/let [_ (verify-permission repo file-handle true)
+                          _ (utils/writeFile file-handle content)
+                          file (.getFile file-handle)]
+                    (when file
+                      (nfs-saved-handler repo path file))))
+                (do
+                  (js/alert (str "The file has been modified on your local disk! File path: " path
+                                 ", please save your changes and click the refresh button to reload it."))))))
            ;; create file handle
           (->
            (p/let [handle (idb/get-item handle-path)]

src/main/frontend/fs/node.cljs

@@ -27,8 +27,7 @@
   [repo dir path content {:keys [ok-handler error-handler] :as opts} stat]
   (p/let [disk-mtime (when stat (gobj/get stat "mtime"))
           db-mtime (db/get-file-last-modified-at repo path)]
-    (if false
-        ;; (not= disk-mtime db-mtime)
+    (if (not= disk-mtime db-mtime)
       (js/alert (str "The file has been modified on your local disk! File path: " path
                      ", please save your changes and click the refresh button to reload it."))
       (->