feat: modulesDir supports array form

lib/builder/webpack/base.config.js

@@ -48,13 +48,13 @@ export default function webpackBaseConfig(name) {
         'static': join(this.options.srcDir, 'static')
       },
       modules: [
-        this.options.modulesDir,
+        ...this.options.modulesDir,
         nodeModulesDir
       ]
     },
     resolveLoader: {
       modules: [
-        this.options.modulesDir,
+        ...this.options.modulesDir,
         nodeModulesDir
       ]
     },

lib/builder/webpack/server.config.js

@@ -53,7 +53,7 @@ export default function webpackServerConfig() {
   // https://webpack.js.org/configuration/externals/#externals
   // https://github.com/liady/webpack-node-externals
   const moduleDirs = [
-    this.options.modulesDir
+    ...this.options.modulesDir
     // Temporary disabled due to vue-server-renderer module search limitations
     // resolve(__dirname, '..', 'node_modules')
   ]

lib/common/options.js

@@ -39,10 +39,20 @@ Options.from = function (_options) {
   const hasValue = v => typeof v === 'string' && v
   options.rootDir = hasValue(options.rootDir) ? options.rootDir : process.cwd()
   options.srcDir = hasValue(options.srcDir) ? resolve(options.rootDir, options.srcDir) : options.rootDir
-  options.modulesDir = resolve(options.rootDir, hasValue(options.modulesDir) ? options.modulesDir : 'node_modules')
   options.buildDir = resolve(options.rootDir, options.buildDir)
   options.cacheDir = resolve(options.rootDir, options.cacheDir)
 
+  if (Array.isArray(options.modulesDir) && options.modulesDir.length) {
+    options.modulesDir = options.modulesDir.reduce((modules, dir) => {
+      if (hasValue(dir)) {
+        modules.push(resolve(options.rootDir, dir))
+      }
+      return modules
+    }, [])
+  } else {
+    options.modulesDir = [resolve(options.rootDir, hasValue(options.modulesDir) ? options.modulesDir : 'node_modules')]
+  }
+
   // If app.html is defined, set the template path to the user template
   options.appTemplatePath = resolve(options.buildDir, 'views/app.template.html')
   if (existsSync(join(options.srcDir, 'app.html'))) {
@@ -126,7 +136,7 @@ Options.from = function (_options) {
               path: [
                 options.srcDir,
                 options.rootDir,
-                options.modulesDir
+                ...options.modulesDir
               ]
             },
             // https://github.com/postcss/postcss-url

test/fixtures/basic/nuxt.config.js

@@ -1,3 +1,5 @@
+const path = require('path')
+
 module.exports = {
   generate: {
     routes: [
@@ -8,6 +10,7 @@ module.exports = {
     interval: 200,
     subFolders: true
   },
+  modulesDir: path.join(__dirname, '..', '..', '..', 'node_modules'),
   hooks: {
     ready(nuxt) {
       nuxt.__hook_called__ = true

test/fixtures/with-config/nuxt.config.js

@@ -16,7 +16,9 @@ module.exports = {
       ]
     }
   },
-  modulesDir: path.join(__dirname, '..', '..', '..', 'node_modules'),
+  modulesDir: [
+    path.join(__dirname, '..', '..', '..', 'node_modules')
+  ],
   transition: 'test',
   layoutTransition: 'test',
   loadingIndicator: 'circle',