chore: improve resolve app options

packages/nuxt3/src/builder/app.ts

@@ -1,20 +1,35 @@
 import { resolve } from 'path'
+import defu from 'defu'
 import { Builder } from './builder'
 import { NuxtRoute, resolvePagesRoutes } from './pages'
+import { NormalizedConfiguration } from 'src/config'
 
 export interface NuxtApp {
-  srcDir: string
+  options: AppOptions
   main?: string
   routes: NuxtRoute[]
 }
 
+interface AppOptions {
+  srcDir?: string
+  dir?: NormalizedConfiguration['dir']
+  extensions?: NormalizedConfiguration['extensions']
+}
+
 // Scan project structure
-export async function resolveApp (builder: Builder, srcDir: string): Promise<NuxtApp> {
+export async function resolveApp (builder: Builder, options: AppOptions = {}): Promise<NuxtApp> {
   const { nuxt } = builder
 
+  options = defu(options, {
+    srcDir: nuxt.options.srcDir,
+    dir: nuxt.options.dir,
+    extensions: nuxt.options.extensions
+  })
+
   // Create base app object
   const app: NuxtApp = {
-    srcDir,
+    options,
+    // Overwritten by the resolvers
     main: '',
     routes: []
   }

packages/nuxt3/src/builder/builder.ts

@@ -70,7 +70,7 @@ export async function generate (builder: Builder) {
   const { nuxt } = builder
 
   await fsExtra.mkdirp(nuxt.options.buildDir)
-  builder.app = await resolveApp(builder, nuxt.options.srcDir)
+  builder.app = await resolveApp(builder)
 
   const templatesDir = join(builder.nuxt.options.appDir, '_templates')
   const appTemplates = await scanTemplates(templatesDir, templateData(builder))

packages/nuxt3/src/builder/pages.ts

@@ -13,14 +13,12 @@ export interface NuxtRoute {
 
 export async function resolvePagesRoutes (builder, app: NuxtApp) {
   const { nuxt } = builder
+  const pagesDirName = app.options.dir.pages
+  const extensions = app.options.extensions
 
-  // TODO: these variables should be overriable by app not global
+  const pagesDir = resolve(app.options.srcDir, pagesDirName)
-  const pagesDirName = nuxt.options.dir.pages
-  const extensions = nuxt.options.extensions
-
-  const pagesDir = resolve(app.srcDir, pagesDirName)
   const pagesPattern = `${pagesDirName}/**/*.{${extensions.join(',')}}`
-  const files = await resolveFiles(builder, pagesPattern, app.srcDir)
+  const files = await resolveFiles(builder, pagesPattern, app.options.srcDir)
 
   const routes: NuxtRoute[] = []