chore(deps): update to Nuxt v4

Author: HigherOrderLogic

package.json

@@ -44,7 +44,7 @@
     "test:types": "nuxt-module-build prepare && nuxt prepare playground && vue-tsc --noEmit"
   },
   "dependencies": {
-    "@nuxt/kit": "^3.20.1",
+    "@nuxt/kit": "^4.2.1",
     "citty": "^0.1.6",
     "consola": "^3.4.2",
     "destr": "^2.0.5",
@@ -60,7 +60,7 @@
   "devDependencies": {
     "@nuxt/eslint-config": "^1.10.0",
     "@nuxt/module-builder": "^1.0.2",
-    "@nuxt/schema": "^3.20.1",
+    "@nuxt/schema": "^4.2.1",
     "@nuxt/test-utils": "^3.20.1",
     "@types/git-url-parse": "^16.0.2",
     "@vitest/coverage-v8": "^4.0.6",
@@ -70,7 +70,7 @@
     "h3": "^1.15.4",
     "installed-check": "^9.3.0",
     "knip": "^5.67.1",
-    "nuxt": "^3.20.1",
+    "nuxt": "^4.2.1",
     "typescript": "^5.9.3",
     "unbuild": "^3.6.1",
     "vitest": "^4.0.6",

playground/package.json

@@ -5,6 +5,6 @@
     "build": "nuxt build"
   },
   "dependencies": {
-    "nuxt": "^3.20.1"
+    "nuxt": "^4.2.1"
   }
 }

pnpm-lock.yaml

@@ -121,7 +121,7 @@ async function _checkDisabled(dir: string): Promise<string | false | undefined>
     const config = await loadNuxtConfig({ cwd: dir })
     for (const layer of config._layers) {
       if (disabledByConf(layer.config)) {
-        return 'by ' + config._layers[0].configFile
+        return 'by ' + config._layers[0]!.configFile
       }
     }
   }

src/cli.ts

@@ -1,14 +1,24 @@
 import os from 'node:os'
 import { execSync } from 'node:child_process'
 import gitUrlParse from 'git-url-parse'
-import { getNuxtVersion, isNuxt3 } from '@nuxt/kit'
+import { getNuxtVersion, isNuxtMajorVersion } from '@nuxt/kit'
 import isDocker from 'is-docker'
 import { provider } from 'std-env'
 import type { Nuxt } from '@nuxt/schema'
 import { detect } from 'package-manager-detector'
 import type { Context, GitData, TelemetryOptions } from './types'
 import { hash } from './utils/hash'
 
+function getNuxtMajorVersion(nuxt: Nuxt) {
+  for (let i = 4; i >= 2; i--) {
+    const j = i as (2 | 3 | 4)
+    if (isNuxtMajorVersion(j, nuxt)) {
+      return j
+    }
+  }
+  return 2
+}
+
 export async function createContext(nuxt: Nuxt, options: Required<TelemetryOptions>): Promise<Context> {
   const rootDir = nuxt.options.rootDir || process.cwd()
   const git = await getGit(rootDir)
@@ -19,7 +29,7 @@ export async function createContext(nuxt: Nuxt, options: Required<TelemetryOptio
   const projectSession = getProjectSession(projectHash, seed)
 
   const nuxtVersion = getNuxtVersion(nuxt)
-  const nuxtMajorVersion = isNuxt3(nuxt) ? 3 : 2
+  const nuxtMajorVersion = getNuxtMajorVersion(nuxt)
   const nodeVersion = process.version.replace('v', '')
   const isEdge = nuxtVersion.includes('edge')
 
@@ -54,7 +64,7 @@ function getEnv(): Context['environment'] {
 }
 
 function getCLI() {
-  const entry = process.argv[1]
+  const entry = process.argv[1] ?? ''
 
   const knownCLIs = {
     'nuxt-ts.js': 'nuxt-ts',

src/context.ts

@@ -20,6 +20,7 @@ export const command = <EventFactory<CommandEvent>> function ({ nuxt }) {
   for (const _flag in flagMap) {
     // TODO: remove legacy nuxt 2 flags _export and _serve
     const flag = _flag as Exclude<keyof typeof flagMap, '_export' | '_serve'>
+    // @ts-expect-error no _generate?
     if (nuxt.options[flag]) {
       command = flagMap[flag]
       break

src/events/command.ts

@@ -14,7 +14,7 @@ export const project = <EventFactory<ProjectEvent>> function (context) {
     name: 'project',
     type: (context.git && context.git.url) ? 'git' : 'local',
     isSSR: options.ssr !== false,
-    target: options._generate ? 'static' : 'server',
+    target: options.server ? 'server' : 'static',
     packageManager: context.packageManager,
   }
 }

src/events/project.ts

@@ -16,7 +16,7 @@ export interface Context {
   projectHash: string
   projectSession: string
   nuxtVersion: string
-  nuxtMajorVersion: 2 | 3
+  nuxtMajorVersion: 2 | 3 | 4
   isEdge: boolean
   nodeVersion: string
   os: string

src/types.ts

@@ -68,7 +68,7 @@ describe('@nuxt/telemetry', () => {
             "context": {
               "cli": "programmatic",
               "isEdge": false,
-              "nuxtMajorVersion": 3,
+              "nuxtMajorVersion": 4,
             },
             "events": [
               {