fix: handle queries for non-existent items

deno.json

@@ -1,6 +1,6 @@
 {
 	"name": "@andyburke/fsdb",
-	"version": "1.2.2",
+	"version": "1.2.3",
 	"license": "MIT",
 	"exports": {
 		".": "./fsdb.ts",

tests/04_indexing_sanity_checks.test.ts

@@ -155,6 +155,11 @@ Deno.test({
 			asserts.assertEquals(found, random_item);
 		}
 
+		const fetched_nonexistent_entries: ITEM[] = (await item_collection.find({ custom_organizing_test: '*&^' })).map((entry) =>
+			entry.load()
+		);
+		asserts.assertEquals(fetched_nonexistent_entries.length, 0);
+
 		// leave one item behind so the whole db for this test doesn't get cleaned up so I can hand-review it
 		// for (const item of items.slice(1)) {
 		// 	await item_collection.delete(item);

utils/walk.ts

@@ -1,3 +1,4 @@
+import * as fs from '@std/fs';
 import * as path from '@std/path';
 
 export type WALK_OPTIONS<T> = {
@@ -27,6 +28,11 @@ export async function* walk<T>(
 
 	const entries: WALK_ENTRY<T>[] = [];
 
+	const exists: boolean = await fs.exists(root_path);
+	if (!exists) {
+		return entries;
+	}
+
 	const root_info: Deno.FileInfo = await Deno.lstat(root_path);
 	if (!root_info.isDirectory) {
 		const entry: WALK_ENTRY<T> = {