chore(package): add exports and type properties to package.json

scripts/utils/write-pkg-json.ts

@@ -2,35 +2,49 @@ import fs from 'fs-extra';
 import path from 'path';
 import { BuildOptions } from './options';
 
-
 export function writePkgJson(opts: BuildOptions, pkgDir: string, pkgData: PackageData) {
   pkgData.version = opts.version;
   pkgData.private = true;
 
+  if (pkgData.main && !pkgData.main.startsWith('.')) {
+    pkgData.main = `./${pkgData.main}`;
+  }
+  if (pkgData.module && !pkgData.module.startsWith('.')) {
+    pkgData.module = `./${pkgData.module}`;
+  }
+  if (pkgData.types && !pkgData.types.startsWith('.')) {
+    pkgData.types = `./${pkgData.types}`;
+  }
+
+  if (pkgData.module && pkgData.main) {
+    pkgData.type = 'module';
+    pkgData.exports = {
+      import: pkgData.module,
+      require: pkgData.main,
+    };
+  }
+
   // idk, i just like a nice pretty standardized order of package.json properties
   const formatedPkg: any = {};
   PROPS_ORDER.forEach(pkgProp => {
     if (pkgProp in pkgData) {
-      formatedPkg[pkgProp] = pkgData[pkgProp]
+      formatedPkg[pkgProp] = pkgData[pkgProp];
     }
   });
 
-  fs.writeFileSync(
-    path.join(pkgDir, 'package.json'),
-    JSON.stringify(formatedPkg, null, 2) + '\n'
-  );
+  fs.writeFileSync(path.join(pkgDir, 'package.json'), JSON.stringify(formatedPkg, null, 2) + '\n');
 }
 
-const PROPS_ORDER = [
-  'name', 'version', 'description', 'main', 'module', 'browser', 'types', 'private'
-];
+const PROPS_ORDER = ['name', 'version', 'description', 'main', 'module', 'browser', 'types', 'exports', 'type', 'private'];
 
 export interface PackageData {
   name: string;
   description: string;
   main: string;
   module?: string;
   browser?: string;
+  exports?: any;
+  type?: string;
   types?: string;
   version?: string;
   dependencies?: string[];
@@ -42,5 +56,5 @@ export interface PackageData {
   homepage?: string;
   repository?: any;
   files?: string[];
-  bin?: {[key: string]: string};
+  bin?: { [key: string]: string };
 }