Check if file exists

snippets/go.snippets

@@ -559,3 +559,12 @@ snippet signals "handle signals"
 	fmt.Println("awaiting signal")
 	<-done
 	fmt.Println("exiting")
+
+snippet fileExists "check if a file exists"
+	if _, err := os.Stat("${1}"); err == nil {
+		// path/to/whatever exists
+	} else if errors.Is(err, os.ErrNotExist) {
+		// path/to/whatever does *not* exist
+	} else {
+		// other errors
+	}