prevent stalling initial 'making smart connections' process by improv…

…ing meta change detection

smart-entities/smart_entities.js

@@ -492,16 +492,22 @@ class SmartNote extends SmartEntity {
   get blocks() { return Object.keys(this.last_history.blocks).map(block_key => this.env.smart_blocks.get(block_key)).filter(block => block); } // filter out blocks that don't exist
   get embed_input() { return this._embed_input ? this._embed_input : this.get_embed_input(); }
   get meta_changed() {
-    if(!this.last_history) return true;
-    if((this.last_history?.mtime || 0) < this.t_file.stat.mtime){
-      const size_diff = Math.abs(this.last_history.size - this.t_file.stat.size);
-      console.log("mtime changed: ", this.last_history, this.t_file);
-      const size_diff_ratio = size_diff / this.last_history.size;
-      console.log("size diff ratio: ", size_diff_ratio);
-      if(size_diff_ratio > 0.03) return true; // if size diff greater than 5% of last_history.size, assume file changed
+    try{
+      if(!this.last_history) return true;
+      if(!this.t_file) return true;
+      if((this.last_history?.mtime || 0) < this.t_file.stat.mtime){
+        const size_diff = Math.abs(this.last_history.size - this.t_file.stat.size);
+        console.log("mtime changed: ", this.last_history, this.t_file);
+        const size_diff_ratio = size_diff / this.last_history.size;
+        console.log("size diff ratio: ", size_diff_ratio);
+        if(size_diff_ratio > 0.03) return true; // if size diff greater than 5% of last_history.size, assume file changed
+      }
+      // return (this.last_history.mtime !== this.t_file.stat.mtime) && (this.last_history.size !== this.t_file.stat.size);
+      return false;
+    }catch(e){
+      console.warn("error getting meta changed for ", this.data.path, ": ", e);
+      return true;
     }
-    // return (this.last_history.mtime !== this.t_file.stat.mtime) && (this.last_history.size !== this.t_file.stat.size);
-    return false;
   }
   get is_canvas() { return this.data.path.endsWith("canvas"); }
   get is_excalidraw() { return this.data.path.endsWith("excalidraw.md"); }