feat: add filtering options to svelteJsxSnippet plugin

This commit introduces the ability to include or exclude files from
being processed by the svelteJsxSnippet plugin. This is achieved by
using the createFilter function from the @rollup/pluginutils package.
The filtering options can be passed as an argument to the
svelteJsxSnippet function.

Author: ryoppippi

packages/svelte-jsx-snippet/package.json

@@ -51,6 +51,7 @@
     "@babel/generator": "^7.24.10",
     "@babel/parser": "^7.24.8",
     "@babel/types": "^7.24.9",
+    "@rollup/pluginutils": "^5.1.0",
     "@types/babel__generator": "^7.6.8",
     "magic-string": "^0.30.10",
     "svelte": "5.0.0-next.183",

packages/svelte-jsx-snippet/src/vite.ts

@@ -1,20 +1,44 @@
 import type { Plugin } from "vite";
 import { transform } from "./transformer";
+import { type FilterPattern, createFilter as rollupCreateFilter } from '@rollup/pluginutils';
+
+
+export interface Options {
+  include?: FilterPattern;
+  exclude?: FilterPattern;
+};
+
+/**
+ * Create a filter function from the given include and exclude patterns.
+ * @param include - An array of minimatch or regex pattern strings. @default [/\.[mc]?[jt]sx$/] only handle .jsx, .tsx
+ * @param exclude - An array of minimatch or regex pattern strings.
+ */
+function createFilter(
+  include: Options['include'],
+  exclude: Options['exclude'],
+): ReturnType<typeof rollupCreateFilter> {
+  return rollupCreateFilter(
+    include ?? [/\.[mc]?[jt]sx$/],
+    exclude
+  );
+}
+
+export function svelteJsxSnippet(options: Options = {}): Plugin {
+  const filter = createFilter(options.include, options.exclude);
 
-export function svelteJsxSnippet(): Plugin {
   let dev = false;
   return {
     name: "svelte-jsx-snippet",
     enforce: "pre",
     configResolved(config) {
       dev = config.command === "serve";
     },
+
     /**
      * Transform JSX to snippet (generated) js
      */
     transform(code, id, options) {
-      // only handle .jsx, .tsx
-      if (!/\.[mc]?[jt]sx$/.test(id)) return null;
+      if (!filter(id)) return;
 
       return transform(code, {
         dev,