feat: initialize base route-generate functionality

packages/router-generator/tests/generator.test.ts

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+import fs from 'fs/promises'
+import { describe, it, expect } from 'vitest'
+import { routeGenerator } from '../src'
+
+function makeFolderDir(folder: string) {
+  return process.cwd() + `/tests/generator/${folder}`
+}
+
+async function getRouteTreeFileText(folder: string) {
+  const dir = makeFolderDir(folder)
+  return await fs.readFile(dir + '/routeTree.gen.ts', 'utf-8')
+}
+
+async function getExpectedRouteTreeFileText(folder: string) {
+  const dir = makeFolderDir(folder)
+  const location = dir + '/routeTree.expected.ts'
+  return await fs.readFile(location, 'utf-8')
+}
+
+describe('generator works', async () => {
+  const folderNames = await fs.readdir(process.cwd() + '/tests/generator')
+
+  it.each(folderNames.map((folder) => [folder]))(
+    'should wire-up the routes for a "%s" tree',
+    async (folderName) => {
+      const currentFolder = `${process.cwd()}/tests/generator/${folderName}`
+
+      await routeGenerator({
+        folderName: `${currentFolder}/routes`,
+        generatedRouteTree: `${currentFolder}/routeTree.gen.ts`,
+      })
+
+      const [expectedRouteTree, generatedRouteTree] = await Promise.all([
+        getExpectedRouteTreeFileText(folderName),
+        getRouteTreeFileText(folderName),
+      ])
+
+      expect(generatedRouteTree).equal(expectedRouteTree)
+    },
+  )
+})

packages/router-generator/tests/generator/single-level/routeTree.expected.ts

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+// This file is auto-generated by Tuono
+
+import { Route as rootRoute } from './routes/__root'
+import { Route as AboutImport } from './routes/about'
+import { Route as IndexImport } from './routes/index'
+
+// Create/Update Routes
+
+const AboutRoute = AboutImport.update({
+  path: '/about',
+  getParentRoute: () => rootRoute,
+} as any)
+
+const IndexRoute = IndexImport.update({
+  path: '/',
+  getParentRoute: () => rootRoute,
+} as any)
+
+// Populate the FileRoutesByPath interface
+
+declare module '@tanstack/react-router' {
+  interface FileRoutesByPath {
+    '/': {
+      preLoaderRoute: typeof IndexImport
+      parentRoute: typeof rootRoute
+    }
+    '/about': {
+      preLoaderRoute: typeof AboutImport
+      parentRoute: typeof rootRoute
+    }
+  }
+}
+
+// Create and export the route tree
+
+export const routeTree = rootRoute.addChildren([IndexRoute, AboutRoute])

packages/router-generator/tests/generator/single-level/routes/__root.tsx

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+/** */

packages/router-generator/tests/generator/single-level/routes/about.tsx

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+/** */

packages/router-generator/tests/generator/single-level/routes/index.tsx

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+/** */