Add rollup bundler

Author: infctr

.npmignore

@@ -1,35 +1,6 @@
-/* eslint-disable @typescript-eslint/no-var-requires */
-const tsconfig = require('tsconfig');
-const fs = require('fs');
-const assert = require('assert');
-
-const isTest = process.env.NODE_ENV === 'test';
-const filePath = tsconfig.resolveSync('.');
-
-assert(filePath);
-
-// @ts-ignore
-const config = tsconfig.readFileSync(filePath);
-const baseUrl = config.compilerOptions.baseUrl;
-
-const moduleMappings = fs
-  .readdirSync(baseUrl, { withFileTypes: true })
-  .filter(dirent => dirent.isDirectory())
-  .map(dirent => dirent.name)
-  .reduce((memo, dir) => ({ ...memo, [dir]: ['./src/', dir].join('') }), {});
-
 module.exports = {
   presets: [
     ['@babel/preset-env', { targets: { node: 'current' } }],
     '@babel/preset-typescript',
   ],
-  plugins: [
-    !isTest && [
-      'module-resolver',
-      {
-        root: ['./src'],
-        alias: moduleMappings,
-      },
-    ],
-  ].filter(Boolean),
 };

babel.config.js

@@ -9,9 +9,22 @@
     "typescript"
   ],
   "author": "infctr <[email protected]>",
-  "main": "dist/index.js",
+  "main": "lib/index.cjs.js",
+  "module": "lib/index.esm.js",
   "repository": "[email protected]:infctr/eslint-plugin-typescript-sort-keys.git",
   "url": "https://github.com/infctr/eslint-plugin-typescript-sort-keys",
+  "files": [
+    "/lib",
+    "package.json",
+    "CHANGELOG.md",
+    "LICENSE.md",
+    "README.md"
+  ],
+  "exports": {
+    "import": "lib/index.esm.js",
+    "require": "lib/index.cjs.js",
+    "default": "lib/index.cjs.js"
+  },
   "scripts": {
     "build": "yarn rimraf lib && yarn compile",
     "compile": "yarn rollup -c",
@@ -26,6 +39,7 @@
     "verify": "yarn type-check && yarn lint && yarn build && yarn test"
   },
   "dependencies": {
+    "@typescript-eslint/experimental-utils": "~2.32.0",
     "natural-compare-lite": "~1.4.0"
   },
   "devDependencies": {
@@ -34,16 +48,21 @@
     "@babel/preset-env": "~7.9.6",
     "@babel/preset-typescript": "~7.9.0",
     "@infctr/eslint-docs": "~0.4.0",
+    "@rollup/plugin-commonjs": "~12.0.0",
+    "@rollup/plugin-json": "~4.0.3",
+    "@rollup/plugin-node-resolve": "~8.0.0",
+    "@rollup/plugin-typescript": "~4.1.2",
+    "@types/babel__core": "~7.1.7",
+    "@types/babel__preset-env": "~7.9.0",
     "@types/eslint": "~6.8.1",
     "@types/eslint-plugin-prettier": "~3.1.0",
+    "@types/http-server": "~0.10.0",
     "@types/jest": "~25.2.3",
     "@types/natural-compare-lite": "~1.4.0",
     "@types/prettier": "~2.0.0",
-    "@types/requireindex": "~1.2.0",
     "@types/rimraf": "~3.0.0",
     "@types/tmp": "~0.2.0",
     "@typescript-eslint/eslint-plugin": "~2.32.0",
-    "@typescript-eslint/experimental-utils": "~2.32.0",
     "@typescript-eslint/parser": "~2.32.0",
     "babel-jest": "~26.0.1",
     "babel-plugin-module-resolver": "~4.0.0",
@@ -60,6 +79,7 @@
     "lint-staged": "~10.2.4",
     "prettier": "~2.0.5",
     "rimraf": "~3.0.2",
+    "rollup": "~2.10.5",
     "tmp": "~0.2.1",
     "tsconfig": "~7.0.0",
     "typescript": "~3.9.3"

package.json

@@ -0,0 +1,37 @@
+import commonjs from '@rollup/plugin-commonjs';
+import resolve from '@rollup/plugin-node-resolve';
+import typescript from '@rollup/plugin-typescript';
+import json from '@rollup/plugin-json';
+import tsconfig from 'tsconfig';
+import fs from 'fs';
+import assert from 'assert';
+
+const filePath = tsconfig.resolveSync('.');
+
+assert(filePath);
+
+const config = tsconfig.readFileSync(filePath);
+const baseUrl = config.compilerOptions.baseUrl;
+
+const moduleMappings = fs
+  .readdirSync(baseUrl, { withFileTypes: true })
+  .filter(dir => dir.isDirectory())
+  .map(dir => [dir.name, '/'].join(''));
+
+const external = id =>
+  !id.startsWith('.') &&
+  !id.startsWith('/') &&
+  !id.startsWith('\0') &&
+  !moduleMappings.some(mapping => id.startsWith(mapping));
+
+export default [
+  {
+    input: './src/index.ts',
+    external,
+    output: [
+      { dir: 'lib', entryFileNames: '[name].cjs.js', format: 'cjs' },
+      { dir: 'lib', entryFileNames: '[name].esm.js', format: 'es' },
+    ],
+    plugins: [commonjs(), resolve(), typescript(), json()],
+  },
+];

rollup.config.js

@@ -3,16 +3,16 @@
     /* Basic Options */
     // "incremental": true,                   /* Enable incremental compilation */
     "target": "ES6" /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019' or 'ESNEXT'. */,
-    "module": "commonjs" /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */,
+    "module": "esnext" /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */,
     "lib": ["ESNext"] /* Specify library files to be included in the compilation. */,
     "allowJs": true /* Allow javascript files to be compiled. */,
     "checkJs": false /* Report errors in .js files. */,
     // "jsx": "preserve",                     /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
-    "declaration": true /* Generates corresponding '.d.ts' file. */,
+    // "declaration": true /* Generates corresponding '.d.ts' file. */,
     // "declarationMap": true,                /* Generates a sourcemap for each corresponding '.d.ts' file. */
     "sourceMap": true /* Generates corresponding '.map' file. */,
     // "outFile": "./",                       /* Concatenate and emit output to single file. */
-    "outDir": "build" /* Redirect output structure to the directory. */,
+    "outDir": "lib" /* Redirect output structure to the directory. */,
     // "rootDir": "src" /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */,
     // "composite": true,                     /* Enable project compilation */
     // "tsBuildInfoFile": "./",               /* Specify file to store incremental compilation information */