build(schematics): clean from rollup config instead of using rimraf (#…

…4262)

package.json

@@ -49,7 +49,7 @@
     "ssr-app:build": "ng build ssr-app -c production && ng run ssr-app:server:production",
     "test-app:serve": "ng serve test-app",
     "test-app:build": "NG_BUILD_MANGLE=false ng build test-app -c production --source-map true",
-    "schematics:build": "rimraf schematics/dist && rollup --failAfterWarnings -c schematics/rollup.config.js",
+    "schematics:build": "rollup --failAfterWarnings -c schematics/rollup.config.js",
     "schematics:tdd": "ts-node-dev --respawn --project schematics/tsconfig.json node_modules/jasmine/bin/jasmine schematics/**/*.spec.ts",
     "schematics:test": "ts-node --project schematics/tsconfig.json node_modules/jasmine/bin/jasmine schematics/**/*.spec.ts",
     "ci": "yarn test && yarn e2e && yarn build --progress false && yarn ssr"
@@ -136,7 +136,6 @@
     "playwright": "^1.16.0",
     "prismjs": "1.22.0",
     "raw-loader": "^4.0.2",
-    "rimraf": "^3.0.2",
     "rollup": "^2.67.2",
     "rxjs": "~7.4.0",
     "ts-loader": "^8.0.9",

schematics/rollup.config.js

@@ -2,13 +2,18 @@ const pkg = require("../package.json");
 const typescript = require("@rollup/plugin-typescript");
 const replace = require("@rollup/plugin-replace");
 const path = require("path");
+const {promises: fs} = require("fs");
 
 const version = (str) => JSON.stringify(str.startsWith("^") ? str : "^" + str);
 
+const distDir = path.join(__dirname, "dist");
+
+const clean = () => ({async buildStart() { await fs.rm(distDir, {force: true, recursive: true}); }});
+
 module.exports = [
   {
     output: {
-      dir: path.join(__dirname, "dist"),
+      dir: distDir,
       format: "cjs",
       exports: "named",
     },
@@ -23,6 +28,7 @@ module.exports = [
         dependency.startsWith(__dirname)
       ),
     plugins: [
+      clean(),
       replace({
         preventAssignment: true,
         "VERSIONS.BOOTSTRAP": version(pkg.devDependencies.bootstrap),