chore: use rollup instead of webpack and esbuild

.gitignore

@@ -27,3 +27,5 @@ yarn-error.log
 /examples/implementation_languages/typescript/*.js
 /examples/implementation_languages/coffeescript/*.js
 /examples/parser/minification/gen/
+
+.rollup.cache

.prettierignore

@@ -17,3 +17,5 @@
 
 # prettier ignores
 /packages/cst-dts-gen/test/snapshots/**/output.d.ts
+
+.rollup.cache

packages/chevrotain/.mocharc.js

@@ -1,6 +1,10 @@
 module.exports = {
   recursive: true,
-  require: ["./test/test.config", "source-map-support/register"],
+  require: [
+    "./test/test.config",
+    "source-map-support/register",
+    "ts-node/register"
+  ],
   reporter: "spec",
-  spec: "./lib/test/**/*spec.js"
+  spec: "./test/**/*spec.ts"
 }

packages/chevrotain/nyc.config.js

@@ -3,6 +3,7 @@ module.exports = {
   exclude: [
     "lib/test/**/*.*",
     "test/test.config.js",
+    "test",
     // unable to exclude specific deperacted function in this file
     // due to transpilation step "moving" the ignore comments around.
     "lib/src/parse/errors_public.js"

packages/chevrotain/package.json

@@ -38,10 +38,10 @@
     "CHANGELOG.md"
   ],
   "typings": "./chevrotain.d.ts",
-  "main": "./lib/src/api.js",
+  "main": "./lib/chevrotain.js",
   "exports": {
-    "require": "./lib/src/api.js",
-    "import": "./lib_esm/api_esm.mjs"
+    "require": "./lib/chevrotain.js",
+    "import": "./lib/chevrotain.mjs"
   },
   "repository": {
     "type": "git",
@@ -50,44 +50,40 @@
   "homepage": "https://chevrotain.io/docs/",
   "scripts": {
     "---------- CI FLOWS --------": "",
-    "build": "npm-run-all clean compile bundle",
+    "build": "npm-run-all clean bundle",
     "test": "npm-run-all coverage",
     "version": "tsc ./src/version.ts --outDir lib/src && node ./scripts/version-update.js",
     "---------- DEV FLOWS --------": "",
-    "watch": "tsc -w",
     "unit-tests": "mocha",
-    "quick-build": "tsc && yarn run bundle",
+    "quick-build": "yarn run bundle",
     "---------- BUILD STEPS --------": "",
     "clean": "shx rm -rf coverage dev lib lib_esm",
-    "compile": "tsc && node ./scripts/fix-coverage-report.js && npm-run-all gen-esm-wrapper",
-    "compile:watch": "tsc -w",
-    "gen-esm-wrapper": "gen-esm-wrapper . ./lib_esm/api_esm.mjs",
     "coverage": "nyc mocha",
     "---------- BUNDLING --------": "",
-    "bundle": "npm-run-all bundle:**",
-    "bundle:regular": "webpack --config webpack_release.config.js",
-    "bundle:min": "webpack --config webpack_release_min.config.js",
-    "bundle:esm:regular": "esbuild ./lib/src/api.js --bundle --sourcemap --format=esm --outfile=lib_esm/chevrotain.mjs",
-    "bundle:esm:min": "esbuild ./lib/src/api.js --bundle --minify --format=esm --sourcemap --outfile=lib_esm/chevrotain.min.mjs"
+    "bundle": "rollup --config",
+    "bundle:watch": "rollup --config --watch"
   },
   "dependencies": {
     "@chevrotain/types": "^9.1.0",
     "@chevrotain/utils": "^9.1.0",
     "regexp-to-ast": "0.5.0"
   },
   "devDependencies": {
+    "@rollup/plugin-commonjs": "^21.0.1",
+    "@rollup/plugin-node-resolve": "^13.0.6",
+    "@rollup/plugin-typescript": "^8.3.0",
     "@types/sinon-chai": "3.2.5",
     "error-stack-parser": "2.0.6",
-    "esbuild": "0.13.8",
-    "gen-esm-wrapper": "1.1.3",
     "gitty": "3.7.2",
     "jsdom": "18.0.0",
     "jsonfile": "6.1.0",
     "require-from-string": "2.0.2",
+    "rollup": "^2.59.0",
+    "rollup-plugin-terser": "^7.0.2",
     "sinon": "11.1.2",
     "sinon-chai": "3.7.0",
-    "webpack": "5.59.1",
-    "webpack-cli": "4.9.1",
+    "ts-node": "^10.4.0",
+    "tslib": "^2.3.1",
     "xregexp": "5.1.0"
   }
 }

packages/chevrotain/rollup.config.js

@@ -0,0 +1,82 @@
+const typescriptPlugin = require("@rollup/plugin-typescript")
+const { default: nodeResolvePlugin } = require("@rollup/plugin-node-resolve")
+const typescript = require("typescript")
+const { terser } = require("rollup-plugin-terser")
+const commonjsPlugin = require("@rollup/plugin-commonjs")
+
+const pkg = require("./package.json")
+
+module.exports = [
+  // no deps
+  {
+    input: "src/api.ts",
+    output: [
+      ["commonjs", false],
+      ["es", false]
+    ].map(([format, compress]) => ({
+      format: format,
+      entryFileNames:
+        "chevrotain" +
+        (compress ? ".min" : "") +
+        (format === "es" ? ".mjs" : ".js"),
+      sourcemap: true,
+      dir: "lib",
+      name: "chevrotain",
+      exports: "named"
+    })),
+    external: Object.keys(pkg.dependencies),
+    plugins: [typescriptPlugin({ typescript })],
+    onwarn: function (warning, warn) {
+      if ("THIS_IS_UNDEFINED" === warning.code) return
+      // if ('CIRCULAR_DEPENDENCY' === warning.code) return
+      warn(warning)
+    }
+  },
+
+  // bundle
+  {
+    input: "src/api.ts",
+    output: [
+      ["es", false, true],
+      ["es", true, true],
+      ["umd", false, true],
+      ["umd", true, true]
+    ].map(([format, compress]) => ({
+      format: format,
+      entryFileNames:
+        "chevrotain-bundle" +
+        (compress ? ".min" : "") +
+        (format === "es" ? ".mjs" : ".js"),
+      sourcemap: true,
+      dir: "lib",
+      name: "chevrotain",
+      exports: "named",
+      plugins: compress
+        ? [
+            terser({
+              compress: {
+                passes: 3,
+                unsafe: true,
+                ecma: 7
+              },
+              toplevel: true,
+              mangle: {
+                properties: { regex: /^_/ }
+              }
+            })
+          ]
+        : []
+    })),
+    external: [],
+    plugins: [
+      typescriptPlugin({ typescript }),
+      nodeResolvePlugin(),
+      commonjsPlugin()
+    ],
+    onwarn: function (warning, warn) {
+      if ("THIS_IS_UNDEFINED" === warning.code) return
+      // if ('CIRCULAR_DEPENDENCY' === warning.code) return
+      warn(warning)
+    }
+  }
+]

tsconfig.base.json

@@ -3,6 +3,7 @@
   "compilerOptions": {
     "target": "ES5",
     "composite": true,
+    "newLine": "lf",
     "module": "CommonJS",
     "removeComments": false,
     "sourceMap": true,