feat: use dynamic require for node targets

packages/nitro/src/rollup/config.ts

@@ -77,6 +77,7 @@ export const getRollupConfig = (config) => {
   // Dynamic Require Support
   options.plugins.push(dynamicRequire({
     dir: path.resolve(config.buildDir, 'dist/server'),
+    outDir: config.node === false ? undefined : config.outDir,
     globbyOptions: {
       ignore: [
         'server.js'

packages/nitro/src/rollup/dynamic-require.ts

@@ -1,12 +1,13 @@
-import { resolve } from 'path'
+import { basename, resolve, dirname } from 'path'
 import globby, { GlobbyOptions } from 'globby'
+import { copyFile, mkdirp } from 'fs-extra'
 
 const PLUGIN_NAME = 'dynamic-require'
 const HELPER_DYNAMIC = `\0${PLUGIN_NAME}.js`
 const DYNAMIC_REQUIRE_RE = /require\("\.\/" \+/g
 
-function CJSTemplate ({ imports }) {
-  return `${imports.map(i => `import ${i.name} from '${i.import}'`).join('\n')}
+const TMPL_INLINE = ({ imports }) =>
+  `${imports.map(i => `import ${i.name} from '${i.import}'`).join('\n')}
 const dynamicChunks = {
   ${imports.map(i => ` ['${i.id}']: ${i.name}`).join(',\n')}
 };
@@ -14,14 +15,19 @@ const dynamicChunks = {
 export default function dynamicRequire(id) {
   return dynamicChunks[id];
 };`
-}
+
+const TMPL_CJS = ({ chunksDir }) => `export default function dynamicRequire(id) {
+return require('./${chunksDir}/' + id);
+};`
 
 interface Options {
-  dir: string,
+  dir: string
   globbyOptions: GlobbyOptions
+  outDir?: string
+  chunksDir?: string
 }
 
-export default function dynamicRequire ({ dir, globbyOptions }: Options) {
+export default function dynamicRequire ({ dir, globbyOptions, outDir, chunksDir }: Options) {
   return {
     name: PLUGIN_NAME,
     transform (code, _id) {
@@ -33,12 +39,25 @@ export default function dynamicRequire ({ dir, globbyOptions }: Options) {
     async load (id) {
       if (id === HELPER_DYNAMIC) {
         const files = await globby('**/*.js', { cwd: dir, absolute: false, ...globbyOptions })
+
         const imports = files.map(id => ({
           id,
           import: resolve(dir, id),
           name: id.replace(/[\\/.]/g, '_')
         }))
-        return CJSTemplate({ imports })
+
+        if (!outDir) {
+          return TMPL_INLINE({ imports })
+        }
+
+        // Write chunks
+        chunksDir = chunksDir || basename(dir)
+        await Promise.all(imports.map(async (i) => {
+          const dst = resolve(outDir, chunksDir, i.id)
+          await mkdirp(dirname(dst))
+          await copyFile(i.import, dst)
+        }))
+        return TMPL_CJS({ chunksDir })
       }
       return null
     }