feat(react-router): Add build-time config

packages/react-router/README.md

@@ -144,3 +144,39 @@ Update the `start` and `dev` script to include the instrumentation file:
   "start": "NODE_OPTIONS='--import ./instrument.server.mjs' react-router-serve ./build/server/index.js",
 }
 ```
+
+## Build-time Config
+
+Update your vite.config.ts file to include the `sentryReactRouter` plugin and also add your config options to the vite config (this is required for uploading sourcemaps at the end of the build):
+
+```ts
+import { reactRouter } from '@react-router/dev/vite';
+import { sentryReactRouter } from '@sentry/react-router';
+import { defineConfig } from 'vite';
+
+const sentryConfig = {
+  authToken: '...',
+  org: '...',
+  project: '...',
+  // rest of your config
+};
+
+export default defineConfig(config => {
+  return {
+    plugins: [reactRouter(), sentryReactRouter(sentryConfig, config)],
+    sentryConfig,
+  };
+});
+```
+
+Next, in your `react-router.config.ts` file, include the `sentryOnBuildEnd` hook:
+
+```ts
+import type { Config } from '@react-router/dev/config';
+import { sentryOnBuildEnd } from '@sentry/react-router';
+
+export default {
+  ssr: true,
+  buildEnd: sentryOnBuildEnd,
+} satisfies Config;
+```

packages/react-router/package.json

@@ -34,13 +34,18 @@
     "access": "public"
   },
   "dependencies": {
+    "@sentry/vite-plugin": "^3.2.0",
+    "@sentry/cli": "^2.42.1",
+    "glob": "11.0.1",
     "@sentry/browser": "9.2.0",
     "@sentry/core": "9.2.0",
     "@sentry/node": "9.2.0"
   },
   "devDependencies": {
     "@react-router/node": "^7.1.5",
-    "react-router": "^7.1.5"
+    "@react-router/dev": "^7.1.5",
+    "react-router": "^7.1.5",
+    "vite": "^6.1.0"
   },
   "peerDependencies": {
     "@react-router/node": "7.x",

packages/react-router/rollup.npm.config.mjs

@@ -5,7 +5,7 @@ export default [
     makeBaseNPMConfig({
       entrypoints: ['src/index.server.ts', 'src/index.client.ts'],
       packageSpecificConfig: {
-        external: ['react-router', 'react-router-dom', 'react', 'react/jsx-runtime'],
+        external: ['react-router', 'react-router-dom', 'react', 'react/jsx-runtime', 'vite'],
         output: {
           // make it so Rollup calms down about the fact that we're combining default and named exports
           exports: 'named',

packages/react-router/src/index.server.ts

@@ -1 +1,2 @@
 export * from './server';
+export * from './vite';

packages/react-router/src/index.types.ts

@@ -2,6 +2,7 @@
 
 export * from './client';
 export * from './server';
+export * from './vite';
 
 import type { Integration, Options, StackParser } from '@sentry/core';
 import type * as clientSdk from './client';

packages/react-router/src/vite/buildEnd/handleOnBuildEnd.ts

@@ -0,0 +1,113 @@
+import { rm } from 'node:fs/promises';
+import type { Config } from '@react-router/dev/dist/config';
+import SentryCli from '@sentry/cli';
+import { glob } from 'glob';
+import type { SentryReactRouterBuildOptions } from '../types';
+
+type BuildEndHook = NonNullable<Config['buildEnd']>;
+
+function getSentryConfig(viteConfig: unknown): SentryReactRouterBuildOptions {
+  if (!viteConfig || typeof viteConfig !== 'object' || !('sentryConfig' in viteConfig)) {
+    // eslint-disable-next-line no-console
+    console.error('[Sentry] sentryConfig not found - it needs to be passed to vite.config.ts');
+  }
+
+  return (viteConfig as { sentryConfig: SentryReactRouterBuildOptions }).sentryConfig;
+}
+
+/**
+ * A build end hook that handles Sentry release creation and source map uploads.
+ * It creates a new Sentry release if configured, uploads source maps to Sentry,
+ * and optionally deletes the source map files after upload.
+ */
+export const sentryOnBuildEnd: BuildEndHook = async ({ reactRouterConfig, viteConfig }) => {
+  const {
+    authToken,
+    org,
+    project,
+    release,
+    sourceMapsUploadOptions = { enabled: true },
+    debug = false,
+  } = getSentryConfig(viteConfig);
+
+  const cliInstance = new SentryCli(null, {
+    authToken,
+    org,
+    project,
+  });
+  // check if release should be created
+  if (release?.name) {
+    try {
+      await cliInstance.releases.new(release.name);
+    } catch (error) {
+      // eslint-disable-next-line no-console
+      console.error('[Sentry] Could not create release', error);
+    }
+  }
+
+  if (sourceMapsUploadOptions?.enabled ?? (true && viteConfig.build.sourcemap !== false)) {
+    // inject debugIds
+    try {
+      await cliInstance.execute(['sourcemaps', 'inject', reactRouterConfig.buildDirectory], debug);
+    } catch (error) {
+      // eslint-disable-next-line no-console
+      console.error('[Sentry] Could not inject debug ids', error);
+    }
+
+    // upload sourcemaps
+    try {
+      await cliInstance.releases.uploadSourceMaps(release?.name || 'undefined', {
+        include: [
+          {
+            paths: [reactRouterConfig.buildDirectory],
+          },
+        ],
+      });
+    } catch (error) {
+      // eslint-disable-next-line no-console
+      console.error('[Sentry] Could not upload sourcemaps', error);
+    }
+  }
+  // delete sourcemaps after upload
+  let updatedFilesToDeleteAfterUpload = sourceMapsUploadOptions?.filesToDeleteAfterUpload;
+  // set a default value no option was set
+  if (typeof sourceMapsUploadOptions?.filesToDeleteAfterUpload === 'undefined') {
+    updatedFilesToDeleteAfterUpload = [`${reactRouterConfig.buildDirectory}/**/*.map`];
+    if (debug) {
+      // eslint-disable-next-line no-console
+      console.info(
+        `[Sentry] Automatically setting \`sourceMapsUploadOptions.filesToDeleteAfterUpload: ${JSON.stringify(
+          updatedFilesToDeleteAfterUpload,
+        )}\` to delete generated source maps after they were uploaded to Sentry.`,
+      );
+    }
+  }
+  if (updatedFilesToDeleteAfterUpload) {
+    try {
+      const filePathsToDelete = await glob(updatedFilesToDeleteAfterUpload, {
+        absolute: true,
+        nodir: true,
+      });
+      if (debug) {
+        filePathsToDelete.forEach(filePathToDelete => {
+          // eslint-disable-next-line no-console
+          console.info(`Deleting asset after upload: ${filePathToDelete}`);
+        });
+      }
+      await Promise.all(
+        filePathsToDelete.map(filePathToDelete =>
+          rm(filePathToDelete, { force: true }).catch((e: unknown) => {
+            if (debug) {
+              // This is allowed to fail - we just don't do anything
+              // eslint-disable-next-line no-console
+              console.debug(`An error occurred while attempting to delete asset: ${filePathToDelete}`, e);
+            }
+          }),
+        ),
+      );
+    } catch (error) {
+      // eslint-disable-next-line no-console
+      console.error('Error deleting files after sourcemap upload:', error);
+    }
+  }
+};

packages/react-router/src/vite/index.ts

@@ -0,0 +1,3 @@
+export { sentryReactRouter } from './plugin';
+export { sentryOnBuildEnd } from './buildEnd/handleOnBuildEnd';
+export type { SentryReactRouterBuildOptions } from './types';

packages/react-router/src/vite/makeCustomSentryVitePlugins.ts

@@ -0,0 +1,37 @@
+import { sentryVitePlugin } from '@sentry/vite-plugin';
+import { type Plugin } from 'vite';
+import type { SentryReactRouterBuildOptions } from './types';
+
+/**
+ * Create a custom subset of sentry's vite plugins
+ */
+export async function makeCustomSentryVitePlugins(options: SentryReactRouterBuildOptions): Promise<Plugin[]> {
+  const { debug, unstable_sentryVitePluginOptions, bundleSizeOptimizations, authToken, org, project, telemetry } =
+    options;
+
+  const sentryVitePlugins = sentryVitePlugin({
+    authToken: authToken ?? process.env.SENTRY_AUTH_TOKEN,
+    bundleSizeOptimizations,
+    debug: debug ?? false,
+    org: org ?? process.env.SENTRY_ORG,
+    project: project ?? process.env.SENTRY_PROJECT,
+    telemetry: telemetry ?? true,
+    _metaOptions: {
+      telemetry: {
+        metaFramework: 'react-router',
+      },
+    },
+    // will be handled in buildEnd hook
+    sourcemaps: {
+      disable: true,
+    },
+    ...unstable_sentryVitePluginOptions,
+  }) as Plugin[];
+
+  // only use a subset of the plugins as all upload and file deletion tasks will be handled in the buildEnd hook
+  return [
+    ...sentryVitePlugins.filter(plugin => {
+      return ['sentry-telemetry-plugin', 'sentry-vite-release-injection-plugin'].includes(plugin.name);
+    }),
+  ];
+}

packages/react-router/src/vite/makeEnableSourceMapsPlugin.ts

@@ -0,0 +1,83 @@
+import { consoleSandbox } from '@sentry/core';
+import type { Plugin, UserConfig } from 'vite';
+import type { SentryReactRouterBuildOptions } from './types';
+
+/**
+ * A Sentry plugin for React Router to enable "hidden" source maps if they are unset.
+ */
+export function makeEnableSourceMapsPlugin(options: SentryReactRouterBuildOptions): Plugin {
+  return {
+    name: 'sentry-react-router-update-source-map-setting',
+    apply: 'build',
+    enforce: 'post',
+    config(viteConfig) {
+      return {
+        ...viteConfig,
+        build: {
+          ...viteConfig.build,
+          sourcemap: getUpdatedSourceMapSettings(viteConfig, options),
+        },
+      };
+    },
+  };
+}
+
+/** There are 3 ways to set up source map generation
+ *
+ *     1. User explicitly disabled source maps
+ *       - keep this setting (emit a warning that errors won't be unminified in Sentry)
+ *       - we won't upload anything
+ *
+ *     2. Users enabled source map generation (true, 'hidden', 'inline').
+ *       - keep this setting (don't do anything - like deletion - besides uploading)
+ *
+ *     3. Users didn't set source maps generation
+ *       - we enable 'hidden' source maps generation
+ *       - configure `filesToDeleteAfterUpload` to delete all .map files (we emit a log about this)
+ *
+ * --> only exported for testing
+ */
+export function getUpdatedSourceMapSettings(
+  viteConfig: UserConfig,
+  sentryPluginOptions?: SentryReactRouterBuildOptions,
+): boolean | 'inline' | 'hidden' {
+  viteConfig.build = viteConfig.build || {};
+
+  const viteSourceMap = viteConfig?.build?.sourcemap;
+  let updatedSourceMapSetting = viteSourceMap;
+
+  const settingKey = 'vite.build.sourcemap';
+
+  if (viteSourceMap === false) {
+    updatedSourceMapSetting = viteSourceMap;
+
+    consoleSandbox(() => {
+      //  eslint-disable-next-line no-console
+      console.warn(
+        `[Sentry] Source map generation is currently disabled in your Vite configuration (\`${settingKey}: false \`). This setting is either a default setting or was explicitly set in your configuration. Sentry won't override this setting. Without source maps, code snippets on the Sentry Issues page will remain minified. To show unminified code, enable source maps in \`${settingKey}\` (e.g. by setting them to \`hidden\`).`,
+      );
+    });
+  } else if (viteSourceMap && ['hidden', 'inline', true].includes(viteSourceMap)) {
+    updatedSourceMapSetting = viteSourceMap;
+
+    if (sentryPluginOptions?.debug) {
+      consoleSandbox(() => {
+        // eslint-disable-next-line no-console
+        console.log(
+          `[Sentry] We discovered \`${settingKey}\` is set to \`${viteSourceMap.toString()}\`. Sentry will keep this source map setting. This will un-minify the code snippet on the Sentry Issue page.`,
+        );
+      });
+    }
+  } else {
+    updatedSourceMapSetting = 'hidden';
+
+    consoleSandbox(() => {
+      //  eslint-disable-next-line no-console
+      console.log(
+        `[Sentry] Enabled source map generation in the build options with \`${settingKey}: 'hidden'\`. The source maps  will be deleted after they were uploaded to Sentry.`,
+      );
+    });
+  }
+
+  return updatedSourceMapSetting;
+}

packages/react-router/src/vite/plugin.ts

@@ -0,0 +1,26 @@
+import type { ConfigEnv } from 'vite';
+import { type Plugin } from 'vite';
+import { makeCustomSentryVitePlugins } from './makeCustomSentryVitePlugins';
+import { makeEnableSourceMapsPlugin } from './makeEnableSourceMapsPlugin';
+import type { SentryReactRouterBuildOptions } from './types';
+
+/**
+ * A Vite plugin for Sentry that handles source map uploads and bundle size optimizations.
+ *
+ * @param options - Configuration options for the Sentry Vite plugin
+ * @param viteConfig - The Vite user config object
+ * @returns An array of Vite plugins
+ */
+export async function sentryReactRouter(
+  options: SentryReactRouterBuildOptions = {},
+  config: ConfigEnv,
+): Promise<Plugin[]> {
+  const plugins: Plugin[] = [];
+
+  if (process.env.NODE_ENV !== 'development' && config.command === 'build' && config.mode !== 'development') {
+    plugins.push(makeEnableSourceMapsPlugin(options));
+    plugins.push(...(await makeCustomSentryVitePlugins(options)));
+  }
+
+  return plugins;
+}