Add @tanstack/react-router plugin

packages/knip/fixtures/plugins/tanstack-router/package.json

@@ -0,0 +1,7 @@
+{
+  "name": "@fixtures/tanstack-router",
+  "version": "*",
+  "devDependencies": {
+    "@tanstack/react-router": "*"
+  }
+}

packages/knip/fixtures/plugins/tanstack-router/tsr.config.json

@@ -0,0 +1,6 @@
+{
+  "routesDirectory": "./src/routes",
+  "generatedRouteTree": "./src/routeTree.gen.ts",
+  "routeFileIgnorePrefix": "-",
+  "quoteStyle": "single"
+}

packages/knip/fixtures/plugins/tanstack-router2/package.json

@@ -0,0 +1,9 @@
+{
+  "name": "@fixtures/tanstack-router2",
+  "version": "*",
+  "devDependencies": {
+    "@tanstack/react-router": "*",
+    "@tanstack/router-plugin": "*",
+    "vite": "*"
+  }
+}

packages/knip/fixtures/plugins/tanstack-router2/vite.config.ts

@@ -0,0 +1,6 @@
+import { defineConfig, type PluginOption } from 'vite';
+import { TanStackRouterVite } from '@tanstack/router-plugin/vite';
+
+export default defineConfig({
+  plugins: [TanStackRouterVite() as unknown as PluginOption],
+});

packages/knip/fixtures/plugins/tanstack-router3/package.json

@@ -0,0 +1,8 @@
+{
+  "name": "@fixtures/tanstack-router",
+  "version": "*",
+  "devDependencies": {
+    "@tanstack/react-router": "*",
+    "@tanstack/router-plugin": "*"
+  }
+}

packages/knip/fixtures/plugins/tanstack-router3/rspack.config.js

@@ -0,0 +1,5 @@
+import { TanStackRouterRspack } from '@tanstack/router-plugin/rspack';
+
+export default {
+  plugins: [TanStackRouterRspack()],
+};

packages/knip/fixtures/plugins/tanstack-router4/package.json

@@ -0,0 +1,8 @@
+{
+  "name": "@fixtures/tanstack-router",
+  "version": "*",
+  "devDependencies": {
+    "@tanstack/react-router": "*",
+    "@tanstack/router-plugin": "*"
+  }
+}

packages/knip/fixtures/plugins/tanstack-router4/rsbuild.config.js

@@ -0,0 +1,9 @@
+import { TanStackRouterRspack } from '@tanstack/router-plugin/rspack';
+
+export default {
+  tools: {
+    rspack: {
+      plugins: [TanStackRouterRspack()],
+    },
+  },
+};

packages/knip/fixtures/plugins/tanstack-router5/package.json

@@ -0,0 +1,8 @@
+{
+  "name": "@fixtures/tanstack-router",
+  "version": "*",
+  "devDependencies": {
+    "@tanstack/react-router": "*",
+    "@tanstack/router-plugin": "*"
+  }
+}

packages/knip/fixtures/plugins/tanstack-router5/webpack.config.js

@@ -0,0 +1,5 @@
+import { TanStackRouterWebpack } from '@tanstack/router-plugin/webpack';
+
+export default {
+  plugins: [TanStackRouterWebpack()],
+};

packages/knip/schema.json

@@ -540,6 +540,10 @@
           "title": "tailwind plugin configuration (https://knip.dev/reference/plugins/tailwind)",
           "$ref": "#/definitions/plugin"
         },
+        "tanstack-router": {
+          "title": "tanstack-router plugin configuration (https://knip.dev/reference/plugins/tanstack-router)",
+          "$ref": "#/definitions/plugin"
+        },
         "travis": {
           "title": "travis plugin configuration (https://knip.dev/reference/plugins/travis)",
           "$ref": "#/definitions/plugin"

packages/knip/src/plugins/index.ts

@@ -66,6 +66,7 @@ import { default as stylelint } from './stylelint/index.js';
 import { default as svelte } from './svelte/index.js';
 import { default as syncpack } from './syncpack/index.js';
 import { default as tailwind } from './tailwind/index.js';
+import { default as tanstackRouter } from './tanstack-router/index.js';
 import { default as travis } from './travis/index.js';
 import { default as tsNode } from './ts-node/index.js';
 import { default as tsup } from './tsup/index.js';
@@ -154,6 +155,7 @@ export const Plugins = {
   svelte,
   syncpack,
   tailwind,
+  'tanstack-router': tanstackRouter,
   travis,
   'ts-node': tsNode,
   tsup,

packages/knip/src/plugins/tanstack-router/index.ts

@@ -0,0 +1,77 @@
+import type { IsPluginEnabled, Plugin, ResolveEntryPaths } from '../../types/config.js';
+import { debugLogObject } from '../../util/debug.js';
+import { type Input, toEntry } from '../../util/input.js';
+import { hasDependency } from '../../util/plugin.js';
+import { type TanstackRouterPluginConfig, tanstackRouterPluginConfigSchema } from './types.js';
+import { getRsbuildPluginConfig, getRspackPluginConfig, getVitePluginConfig, getWebpackPluginConfig } from './utils.js';
+
+// https://tanstack.com/router/latest/docs/framework/react/guide/file-based-routing
+
+const title = 'Tanstack Router';
+
+const enablers = ['@tanstack/react-router', '@tanstack/router-plugin', '@tanstack/router-cli'];
+
+const isEnabled: IsPluginEnabled = ({ dependencies }) => hasDependency(dependencies, enablers);
+
+const config: string[] = [
+  'tsr.config.json',
+  'vite.config.{js,mjs,ts,cjs,mts,cts}',
+  'rs{pack,build}.config.{js,mjs,ts,cjs,mts,cts}',
+  'webpack.config.{js,mjs,ts,cjs,mts,cts}',
+];
+
+const entry: string[] = [];
+
+const production: string[] = [];
+
+const resolveEntryPaths: ResolveEntryPaths<TanstackRouterPluginConfig> = async (config, options) => {
+  debugLogObject('*', 'resolveEntryPaths::options', options);
+
+  let resolvedConfig: TanstackRouterPluginConfig | undefined;
+
+  if (options.configFileName === 'tsr.config.json') {
+    resolvedConfig = tanstackRouterPluginConfigSchema.parse(config);
+  }
+
+  if (options.configFileName.startsWith('vite.config.')) {
+    resolvedConfig = getVitePluginConfig(options.configFilePath, options.configFileName);
+  }
+
+  if (options.configFileName.startsWith('rspack.config')) {
+    resolvedConfig = getRspackPluginConfig(options.configFilePath, options.configFileName);
+  }
+
+  if (options.configFileName.startsWith('rsbuild.config')) {
+    resolvedConfig = getRsbuildPluginConfig(options.configFilePath, options.configFileName);
+  }
+
+  if (options.configFileName.startsWith('webpack.config')) {
+    resolvedConfig = getWebpackPluginConfig(options.configFilePath, options.configFileName);
+  }
+
+  if (resolvedConfig) {
+    const entries = [
+      toEntry(resolvedConfig.generatedRouteTree),
+      toEntry(`${resolvedConfig.routesDirectory}/**/${resolvedConfig.routeFilePrefix ?? ''}*`),
+      toEntry(`!${resolvedConfig.routesDirectory}/**/${resolvedConfig.routeFileIgnorePrefix}*`),
+    ] satisfies Input[];
+
+    if (resolvedConfig.routeFileIgnorePattern) {
+      entries.push(toEntry(`!${resolvedConfig.routesDirectory}/**/*${resolvedConfig.routeFileIgnorePattern}*`));
+    }
+
+    return entries;
+  }
+
+  return [];
+};
+
+export default {
+  title,
+  enablers,
+  isEnabled,
+  config,
+  entry,
+  production,
+  resolveEntryPaths,
+} satisfies Plugin;

packages/knip/src/plugins/tanstack-router/types.ts

@@ -0,0 +1,17 @@
+import { z } from 'zod';
+
+export const tanstackRouterPluginConfigSchema = z
+  .object({
+    routeFilePrefix: z.string().optional(),
+    routeFileIgnorePrefix: z.string().optional().default('-'),
+    routeFileIgnorePattern: z.string().optional(),
+    routesDirectory: z.string().default('./src/routes'),
+    generatedRouteTree: z.string().default('./src/routeTree.gen.ts'),
+  })
+  .default({
+    routesDirectory: './src/routes',
+    generatedRouteTree: './src/routeTree.gen.ts',
+    routeFileIgnorePrefix: '-',
+  });
+
+export type TanstackRouterPluginConfig = z.infer<typeof tanstackRouterPluginConfigSchema>;