feat: replace custom function with 'ufo' library function

The custom function 'addSlash' in 'src/utils/alias.ts' has been replaced
with the 'withTrailingSlash' function from the 'ufo' library. This change
simplifies the code and reduces redundancy. The 'ufo' library has also been
added to the project dependencies in 'package.json' and 'pnpm-lock.yaml'.

Author: ryoppippi

package.json

@@ -42,6 +42,7 @@
 		"svelte": "5.0.0-next.210",
 		"svelte-parse-markup": "^0.1.5",
 		"type-fest": "^4.23.0",
+		"ufo": "^1.5.4",
 		"uint8array-extras": "^1.4.0",
 		"unconfig": "^0.5.5",
 		"zimmerframe": "^1.1.2"

pnpm-lock.yaml

@@ -1,10 +1,7 @@
 import type { Config as SvelteKitConfig } from '@sveltejs/kit';
 import type { UserConfig as ViteConfig } from 'vite';
 import { loadConfig } from 'unconfig';
-
-export function addSlash(str: string): string {
-	return (str.endsWith('/') ? str : `${str}/`);
-}
+import { withTrailingSlash } from 'ufo';
 
 export async function loadAliases(): Promise<Record<string, string>> {
 	const { config } = await loadConfig({
@@ -32,7 +29,7 @@ export async function loadAliases(): Promise<Record<string, string>> {
 
 	for (const [key, value] of Object.entries(_alias)) {
 		if (typeof value === 'string' && typeof key === 'string') {
-			alias[key] = addSlash(value);
+			alias[key] = withTrailingSlash(value);
 		}
 	}
 

src/utils/alias.ts

@@ -6,8 +6,8 @@ import type { StaticImport } from 'mlly';
 import { parseStaticImport, pathToFileURL, resolvePath } from 'mlly';
 import { stringToUint8Array, uint8ArrayToString } from 'uint8array-extras';
 import { betterr } from 'betterr';
+import { withTrailingSlash } from 'ufo';
 import type { ResolvedOptions } from '../options';
-import { addSlash } from './alias';
 
 type getCssModuleImportsProps = {
 	imports: StaticImport[];
@@ -38,7 +38,7 @@ export async function getCssModuleImports(
 			throw new Error(`Default import is required for css modules: ${specifier}`);
 		}
 
-		const aliasKey = Object.keys(aliases).find(a => specifier.startsWith(addSlash(a)) || specifier === a);
+		const aliasKey = Object.keys(aliases).find(a => specifier.startsWith(withTrailingSlash(a)) || specifier === a);
 		if (aliasKey != null) {
 			const alias = aliases[aliasKey];
 			const s = new MagicString(specifier);