Allow additional externals to be included (#43)

Author: jprosevear

src/build/index.d.ts

@@ -9,6 +9,8 @@ export type Options = {
   exclude?: string[]
   /** Directory where build output will be placed, e.g. `./dist` */
   outDir?: string
+  /** Additional externals to include` */
+  externalInclude?: string[]
 }
 
 export function tanstackBuildConfig(config: Options): UserConfig

src/build/index.js

@@ -14,7 +14,7 @@ export const tanstackBuildConfig = (options) => {
 
   return defineConfig({
     plugins: [
-      externalizeDeps(),
+      externalizeDeps({ include: options.externalInclude || [] }),
       preserveDirectives(),
       dts({
         outDir: `${outDir}/esm`,