This suite installed `sqlite` and `sqlite3` on every run to prerender a
page from a checked-in SQLite database. Neither package was needed for
what the test covers. The pinned `sqlite3@5.0.2` has no linux-arm64
prebuild, and every job that runs this suite is linux-arm64, so each one
compiled the SQLite amalgamation from source. That pin is also Node-API
based and therefore context-aware, so it could no longer reproduce the
abort the suite was originally added for.
The fixture now uses its own compiled `native-addon` plus a
dependency-free JS wrapper standing in for `sqlite`'s role, and reads
its rows from a plain JSON file. The `path.join(process.cwd(), ...)`
expression stays in the page, because output file tracing only follows
it from the app's own code, so moving it into the wrapper would stop the
data file being traced.
The emitted traces were read rather than assumed. Turbopack and
`@vercel/nft` produce the same fixture entries, including the compiled
binary at `native-addon/build/Release/native_addon.node` and the
`process.cwd()`-derived `users.json`.
The trace assertion now checks each pattern separately instead of
collapsing them into a single `every(...)`, which could only report that
something did not match. The `notTests` block went away with it, since
`[].some(...)` asserted nothing.
### What?
Migrate remaining direct `next-webdriver` test callers that have a
`NextInstance` to `next.browser()`, and expose the shared `Playwright`
browser type from `e2e-utils`.
### Why?
`NextInstance.browser` should be the supported browser-opening interface
for test fixtures, with `next-webdriver` kept as the private
implementation detail.
### How?
Updated affected development, e2e, and production tests to call
`next.browser()` directly, passing `baseUrl` where tests intentionally
target a manually spawned or proxied server. Shared helpers now receive
browser callbacks from the test context, and browser types import
`Playwright` from `e2e-utils` instead of deriving from `next.browser` or
importing from private paths.
<!-- NEXT_JS_LLM_PR -->
## What?
Converts existing `createNext()` usage into `nextTestSetup()`.
`createNext()` was the setup step we had before `nextTestSetup()` was
added.
This PR focused on the simple conversion cases. There will be a
follow-up to complete the last few.
---------
Co-authored-by: Cursor <cursoragent@cursor.com>
- Change the Next manifest output assets to also track references to output assets there. That way, `page.js.nft.json` lists the referenced output assets of `page.js` and e.g. `page_client-reference-manifest.js` and all the chunks references in the manifest as well.
- For `ResolveResultItem::External`, continue resolving with a fresh `ModuleAssetContext` that doesn't have any of the build-time settings (because the Node environment when running the server won't have these settings either).
Closes PACK-3380
Pages router (`/pages`) will continue to support React 18 not the React
19 RC. Current thinking is that we'll add support for React 19 in Pages
Router once 19 is stable.
This does not affect App Router (`/app`) which continues to use the
latest React Canary (i.e. React 19).
https://github.com/vercel/next.js/pull/65058 is required reading to
understand the changes in this PR
---------
Co-authored-by: Zack Tanner <1939140+ztanner@users.noreply.github.com>
## What?
In Next, rendering a route involves 3 layers:
- the routing layer, which will direct the request to the correct route to render
- the rendering layer, which will take a route and render it appropriately
- the user layer, which contains the user code
In #51831, in order to optimise the boot time of Next.js, I introduced a change that allowed the routing layer to be bundled. In this PR, I'm doing the same for the rendering layer. This is building up on @wyattjoh's work that initially split the routing and the rendering layer into separate entry-points.
The benefits of having this approach is that this allows us to compartmentalise the different part of Next, optimise them individually and making sure that serving a request is as efficient as possible, e.g. rendering a `pages` route should not need code from the `app router` to be used.
There are now 4 different rendering runtimes, depending on the route type:
- app pages: for App Router pages
- app routes: for App Router route handlers
- pages: for legacy pages
- pages api: for legacy API routes
This change should be transparent to the end user, beside faster cold boots.
## Notable changes
Doing this change required a lot of changes for Next.js under the hood in order to make the different layers play well together.
### New conventions for externals/shared modules
The big issue of bundling the rendering runtimes is that the user code needs to be able to reference an instance of a module/value created in Next during the render. This is the case when the user wants to access the router context during SSR via `next/link` for example; when you call `useContext(value)` the value needs to be the exact same reference to one as the one created by `createContext` earlier.
Previously, we were handling this case by making all files from Next that were affected by this `externals`, meaning that we were marking them not to be bundled.
**Why not keep it this way?**
The goal of this PR as stated previously was to make the rendering process as efficient as possible, so I really wanted to avoid extraneous fs reads to unoptimised code.
In order to "fix" it, I introduced two new conventions to the codebase:
- all files that explicitly need to be shared between a rendering runtime and the user code must be suffixed by `.shared-runtime` and exposed via adding a reference in the relevant `externals` file. At compilation time, a reference to a file ending with this will get re-written to the appropriate runtime.
- all files that need to be truly externals need to be suffixed by `.external`. At compilation time, a reference to it will stay as-is. This special case is needed mostly only for the async local storages that need to be shared with all three layers of Next.
As a side effect, we should be bundling more of the Next code in the user bundles, so it should be slightly more efficient.
### App route handlers are compiled on their own layer
App route handlers should be compiled in their own layer, this allows us to separate more cleanly the compilation logic here (we don't need to run the RSC logic for example).
### New rendering bundles
We now generate a prod and a dev bundle for:
- the routing server
- the app/pages SSR rendering process
- the API routes process
The development bundle is needed because:
- there is code in Next that relies on NODE_ENV
- because we opt out of the logic referencing the correct rendering runtime in dev for a `shared-runtime` file. This is because we don't need to and that Turbopack does not support rewriting an external to something that looks like this `require('foo').bar.baz` yet. We will need to fix that when Turbopack build ships.
### New development pipeline
Bundling Next is now required when developing on the repo so I extended the taskfile setup to account for that. The webpack config for Next itself lives in `webpack.config.js` and contains the logic for all the new bundles generated.
### Misc changes
There are some misc reshuffling in the code to better use the tree shaking abilities that we can now use.
fixes NEXT-1573
Co-authored-by: Alex Kirszenberg <1621758+alexkirsz@users.noreply.github.com>
Sebastian "Sebbie" Silbermann