🔧 Remove unused deps and all lib ships with ESM build

Author: motss

package-lock.json

@@ -51,7 +51,6 @@
     "@types/nock": "^10.0.3",
     "@types/node": "^12.0.8",
     "@types/parse5": "^5.0.0",
-    "cross-env": "^5.2.0",
     "jest": "^24.8.0",
     "lodash-es": "^4.17.11",
     "nock": "^10.0.6",

package.json

@@ -78,8 +78,8 @@ const multiBuild = allModules.reduce((p, n) => {
       experimentalOptimizeChunks: true,
       treeshake: { moduleSifeEffects: false },
       external: [
-        '../lib/clone-deep.js',
-        '../lib/parse5.js',
+        '../lib/clone-deep',
+        '../lib/parse5',
         './deep-clone/index.js',
         './fetch-as/index.js',
         './lit-ntml/index.js',

rollup.config.js

@@ -35,7 +35,7 @@ const src = './src/lib';
 const allLibs = readdirSync(src).filter(n => /\.ts$/i.test(n));
 
 const multiBuild = allLibs.reduce((p, n) => {
-  p.push({
+  const cjs = {
     input: `${src}/${n}`,
     output: {
       file: `dist/lib/${n.replace(/ts$/i, 'js')}`,
@@ -45,7 +45,17 @@ const multiBuild = allLibs.reduce((p, n) => {
     experimentalOptimizeChunks: true,
     plugins: pluginFn(),
     treeshake: { moduleSifeEffects: false },
-  });
+  };
+  const esm = {
+    ...cjs,
+    output: {
+      ...cjs.output,
+      file: `dist/lib/${n.replace(/ts$/i, 'mjs')}`,
+      format: 'esm',
+    },
+  };
+
+  p.push(cjs, esm);
 
   return p;
 }, []);

rollup.config.lib.js

@@ -1,4 +1,4 @@
-import { cloneDeep } from '../lib/clone-deep.js';
+import { cloneDeep } from '../lib/clone-deep';
 
 export interface DeepCloneOptions {
   absolute?: boolean;

src/deep-clone/index.ts

@@ -1,4 +1,4 @@
-import { parse, parseFragment, serialize } from '../lib/parse5.js';
+import { parse, parseFragment, serialize } from '../lib/parse5';
 
 // export const DEFAULT_MINIFY_OPTIONS: htmlMinifier.Options = {
 //   collapseBooleanAttributes: true,