feat(ssr): add ionic angular server (#18880)

angular/scripts/clean.js

@@ -1,12 +1,12 @@
 const fs = require('fs-extra');
 const path = require('path');
 
+const ROOT_DIR = path.join(__dirname, '..');
 
 const cleanDirs = [
-  'dist'
+  path.join(ROOT_DIR, 'dist')
 ];
 
 cleanDirs.forEach(dir => {
-  const cleanDir = path.join(__dirname, '../', dir);
-  fs.removeSync(cleanDir);
+  fs.emptyDirSync(dir);
 });

angular/scripts/rollup.config.js

@@ -2,10 +2,12 @@ import resolve from 'rollup-plugin-node-resolve';
 
 export default {
   input: 'build/es2015/core.js',
-  output: {
-    file: 'dist/fesm2015.js',
-    format: 'es'
-  },
+  output: [
+    {
+      file: 'dist/fesm2015.js',
+      format: 'es'
+    }
+  ],
   external: (id) => {
     // anything else is external
     // Windows: C:\xxxxxx\xxx

angular/scripts/rollup.config.legacy.js

@@ -4,6 +4,15 @@ const newConfig = {
   ...config,
   input: 'build/es5/core.js',
 };
-newConfig.output.file = 'dist/fesm5.js';
+newConfig.output = [
+  {
+    file: 'dist/fesm5.js',
+    format: 'es'
+  },
+  {
+    file: 'dist/fesm5.cjs.js',
+    format: 'cjs'
+  }
+];
 
 export { newConfig as default };