feat(cli): experimental compile cache

package.json

@@ -65,7 +65,8 @@
     "get-stdin": "^6.0.0",
     "source-map-support": "^0.5.6",
     "tslib": "^1.9.3",
-    "unixify": "^1.0.0"
+    "unixify": "^1.0.0",
+    "v8-compile-cache": "^2.0.0"
   },
   "devDependencies": {
     "@commitlint/cli": "^7.0.0",

src/cli.ts

@@ -9,7 +9,6 @@ import { OutputStyle } from './index';
 import { buildContext } from './interop/context';
 import { SassOptionsInterface } from './interop/options/sassOptions';
 import { SassContextInterface } from './interop/sassContext';
-import './verbose';
 
 const d = debug('libsass:cli');
 const styleOptions = ['nested', 'expanded', 'compact', 'compressed'];

src/verbose.ts

@@ -1,8 +1,15 @@
-/** side effect module to enable few verbose logging */
+/**
+ * side effect module to enable few verbose logging.
+ * This is actual entry point to cli, loads necessary modules up front.
+ */
 /* tslint:disable:no-var-requires no-require-imports */
+require('v8-compile-cache');
+
 if (!!process.env.DEBUG) {
   require('source-map-support').install();
   const { log, enableLogger } = require('./util/logger');
   enableLogger(require('debug')('libsass:logger'));
   log('Enabling verbose log');
 }
+
+require('./cli');

webpack.config.ts

@@ -4,7 +4,7 @@ import * as webpack from 'webpack';
 
 module.exports = {
   mode: 'production',
-  entry: './src/cli.ts',
+  entry: './src/verbose.ts',
   devtool: 'source-map',
 
   output: {