Add support for skipTrailingSlashRedirect and skipMiddlewareUrlNormal…

…ize in Turbopack (#56147)

This one only requires the environment variable to be set. Existing
tests already cover this feature.

With these changes `test/e2e/skip-trailing-slash-redirect` can run,
didn't check if there are failing tests yet.

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Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>

packages/next-swc/crates/next-core/src/env.rs

@@ -99,6 +99,37 @@ pub async fn env_for_js(
         },
     );
 
+    map.insert(
+        "__NEXT_MANUAL_TRAILING_SLASH".to_string(),
+        if next_config.skip_trailing_slash_redirect.unwrap_or(false) {
+            "true".to_string()
+        } else {
+            "false".to_string()
+        },
+    );
+
+    map.insert(
+        "__NEXT_NO_MIDDLEWARE_URL_NORMALIZE".to_string(),
+        if next_config.skip_middleware_url_normalize.unwrap_or(false) {
+            "true".to_string()
+        } else {
+            "false".to_string()
+        },
+    );
+
+    map.insert(
+        "__NEXT_EXTERNAL_MIDDLEWARE_REWRITE_RESOLVE".to_string(),
+        if next_config
+            .experimental
+            .external_middleware_rewrites_resolve
+            .unwrap_or(false)
+        {
+            "true".to_string()
+        } else {
+            "false".to_string()
+        },
+    );
+
     if !test_mode.is_empty() {
         map.insert("__NEXT_TEST_MODE".to_string(), "true".to_string());
     }

packages/next-swc/crates/next-core/src/next_config.rs

@@ -88,6 +88,8 @@ pub struct NextConfig {
     pub trailing_slash: Option<bool>,
     pub asset_prefix: Option<String>,
     pub base_path: Option<String>,
+    pub skip_middleware_url_normalize: Option<bool>,
+    pub skip_trailing_slash_redirect: Option<bool>,
 
     ///
     #[serde(rename = "_originalRedirects")]
@@ -127,8 +129,6 @@ pub struct NextConfig {
     typescript: TypeScriptConfig,
     use_file_system_public_routes: bool,
     webpack: Option<serde_json::Value>,
-    skip_middleware_url_normalize: Option<bool>,
-    skip_trailing_slash_redirect: Option<bool>,
 }
 
 #[derive(Clone, Debug, Default, PartialEq, Serialize, Deserialize, TraceRawVcs)]
@@ -429,6 +429,7 @@ pub struct ExperimentalConfig {
     pub swc_plugins: Option<Vec<(String, serde_json::Value)>>,
     pub turbo: Option<ExperimentalTurboConfig>,
     pub turbotrace: Option<serde_json::Value>,
+    pub external_middleware_rewrites_resolve: Option<bool>,
 
     // ---
     // UNSUPPORTED
@@ -446,7 +447,6 @@ pub struct ExperimentalConfig {
     esm_externals: Option<serde_json::Value>,
     extension_alias: Option<serde_json::Value>,
     external_dir: Option<bool>,
-    external_middleware_rewrites_resolve: Option<bool>,
     /// If set to `false`, webpack won't fall back to polyfill Node.js modules
     /// in the browser Full list of old polyfills is accessible here:
     /// [webpack/webpack#Module_notound_error.js#L13-L42](https://github.com/webpack/webpack/blob/2a0536cf510768111a3a6dceeb14cb79b9f59273/lib/Module_not_found_error.js#L13-L42)

packages/next/src/lib/turbopack-warning.ts

@@ -30,6 +30,9 @@ const supportedTurbopackNextConfigOptions = [
   'generateEtags',
   'assetPrefix',
   'distDir',
+  'skipMiddlewareUrlNormalize',
+  'skipTrailingSlashRedirect',
+  'experimental.externalMiddlewareRewritesResolve',
   'experimental.serverComponentsExternalPackages',
   'experimental.strictNextHead',
   'experimental.turbo',