bump next 15 rc1 (#3477)

* bump next 15 rc1

* lint

* aa

* aa

* Update .changeset/gentle-eyes-bathe.md

Author: dimaMachina

.changeset/gentle-eyes-bathe.md

@@ -0,0 +1,5 @@
+---
+'nextra': patch
+---
+
+fix compatibility with Next.js `15.0.0-rc.1`

docs/components/ready-to-go.mdx

@@ -1,3 +1,13 @@
+### Create Next.js [`App` Component](https://nextjs.org/docs/pages/building-your-application/routing/custom-app)
+
+Create `pages/_app.jsx` file with the following content:
+
+```jsx filename="pages/_app.jsx"
+export default function App({ Component, pageProps }) {
+  return <Component {...pageProps} />
+}
+```
+
 ### Ready to Go!
 
 Now, you can create your first MDX page as `pages/index.mdx`:

docs/pages/docs/guide/advanced/remote.mdx

@@ -2,6 +2,8 @@
 
 import { Callout } from 'nextra/components'
 
-<Callout emoji="🚨">
-  This page is a stub. Help us expand it by contributing!
+<Callout type="info">
+  You can find information about remote docs support in [Nextra 3
+  blogpost](https://the-guild.dev/blog/nextra-3#remote-docs-support)
+  announcement.
 </Callout>

examples/blog/pages/_app.jsx

@@ -0,0 +1,3 @@
+export default function App({ Component, pageProps }) {
+  return <Component {...pageProps} />
+}

examples/docs/src/pages/_app.jsx

@@ -0,0 +1,3 @@
+export default function App({ Component, pageProps }) {
+  return <Component {...pageProps} />
+}

package.json

@@ -51,7 +51,7 @@
     "overrides": {
       "vite": "5.4.8",
       "esbuild": "0.24.0",
-      "next": "14.2.15"
+      "next": "15.0.0-rc.1"
     },
     "patchedDependencies": {
       "@changesets/assemble-release-plan@6.0.4": "patches/@changesets__assemble-release-plan.patch",

packages/nextra/src/server/index.ts

@@ -137,7 +137,10 @@ const nextra: Nextra = nextraConfig => {
             appESM
           ]
         } else {
-          alias[join(alias.next, 'dist', 'pages', '_app')] = appESM
+          const nextAlias = alias.next
+          if (nextAlias) {
+            alias[join(alias.next, 'dist', 'pages', '_app')] = appESM
+          }
         }
         const rules = config.module.rules as RuleSetRule[]
 

packages/nextra/src/server/rehype-plugins/rehype.ts

@@ -49,13 +49,12 @@ export const rehypeParseCodeMeta: Plugin<
   ast => {
     visit(ast, { tagName: 'pre' }, (node: PreElement) => {
       const [codeEl] = node.children as Element[]
-      // @ts-expect-error fixme
       const { meta = '' } = codeEl.data || {}
 
-      node.__filename = meta.match(CODE_BLOCK_FILENAME_REGEX)?.[1]
+      node.__filename = meta!.match(CODE_BLOCK_FILENAME_REGEX)?.[1]
       node.properties['data-filename'] = node.__filename
 
-      node.__hasWordWrap = meta.includes('word-wrap=false') ? false : true
+      node.__hasWordWrap = !meta!.includes('word-wrap=false')
       if (node.__hasWordWrap) {
         node.properties['data-word-wrap'] = ''
       }