From 82a4109f159d12369ac1d1423ab6777a9eaa61f9 Mon Sep 17 00:00:00 2001
From: velut <12040076+velut@users.noreply.github.com>
Date: Thu, 7 Jan 2021 21:03:29 +0100
Subject: [PATCH] build: use preserveModules for esm build

See https://github.com/formium/tsdx/issues/276
---
 package.json   |  2 +-
 tsdx.config.js | 14 ++++++++++++++
 2 files changed, 15 insertions(+), 1 deletion(-)
 create mode 100644 tsdx.config.js

diff --git a/package.json b/package.json
index a1057a7..fd222ce 100644
--- a/package.json
+++ b/package.json
@@ -6,7 +6,7 @@
     "license": "MIT",
     "main": "dist/index.js",
     "typings": "dist/index.d.ts",
-    "module": "dist/query-registry.esm.js",
+    "module": "dist/index.esm.js",
     "sideEffects": false,
     "files": [
         "dist",
diff --git a/tsdx.config.js b/tsdx.config.js
new file mode 100644
index 0000000..c8090cf
--- /dev/null
+++ b/tsdx.config.js
@@ -0,0 +1,14 @@
+module.exports = {
+    rollup(config, opts) {
+        if (opts.format === 'esm') {
+            config = { ...config, preserveModules: true };
+            config.output = {
+                ...config.output,
+                dir: 'dist/',
+                entryFileNames: '[name].esm.js',
+            };
+            delete config.output.file;
+        }
+        return config;
+    },
+};