From f7378db9e0ef72c860879c04459a0fd92d846a66 Mon Sep 17 00:00:00 2001
From: Pooya Parsa <pyapar@gmail.com>
Date: Sat, 14 Nov 2020 02:43:13 +0100
Subject: [PATCH] feat: add hint to dynamic require for netlify

---
 packages/nitro/src/rollup/dynamic-require.ts | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/packages/nitro/src/rollup/dynamic-require.ts b/packages/nitro/src/rollup/dynamic-require.ts
index 5ae140fd0d..36602e520d 100644
--- a/packages/nitro/src/rollup/dynamic-require.ts
+++ b/packages/nitro/src/rollup/dynamic-require.ts
@@ -12,7 +12,7 @@ interface Import {
   import: string
 }
 
-const TMPL_INLINE = ({ imports }: { imports: Import[]}) =>
+const TMPL_ESM_INLINE = ({ imports }: { imports: Import[]}) =>
   `${imports.map(i => `import ${i.name} from '${i.import.replace(/\\/g, '/')}'`).join('\n')}
 const dynamicChunks = {
   ${imports.map(i => ` ['${i.id}']: ${i.name}`).join(',\n')}
@@ -22,10 +22,19 @@ export default function dynamicRequire(id) {
   return dynamicChunks[id];
 };`
 
-const TMPL_CJS = ({ chunksDir }) => `export default function dynamicRequire(id) {
-return require('./${chunksDir}/' + id);
+const TMPL_CJS_LAZY = ({ imports, chunksDir }) =>
+  `const dynamicChunks = {
+${imports.map(i => ` ['${i.id}']: () => require('./${chunksDir}/${i.id}')`).join(',\n')}
+};
+
+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
   globbyOptions: GlobbyOptions
@@ -53,7 +62,7 @@ export default function dynamicRequire ({ dir, globbyOptions, outDir, chunksDir
         }))
 
         if (!outDir) {
-          return TMPL_INLINE({ imports })
+          return TMPL_ESM_INLINE({ imports })
         }
 
         // Write chunks
@@ -63,7 +72,7 @@ export default function dynamicRequire ({ dir, globbyOptions, outDir, chunksDir
           await mkdirp(dirname(dst))
           await copyFile(i.import, dst)
         }))
-        return TMPL_CJS({ chunksDir })
+        return TMPL_CJS_LAZY({ chunksDir, imports })
       }
       return null
     }