[v7] Introduce Rollup to our tooling family

Author: kamilogorek

.gitignore

@@ -10,11 +10,15 @@ yarn.lock
 build/
 packages/*/dist/
 packages/*/esm/
+packages/*/cjs/
 coverage/
 scratch/
 *.pyc
 *.tsbuildinfo
 
+# TODO: Ignore for repo, but ship with bundles
+*.d.ts
+
 # logs
 yarn-error.log
 npm-debug.log

package.json

@@ -29,6 +29,9 @@
   },
   "devDependencies": {
     "@google-cloud/storage": "^5.7.0",
+    "@rollup/plugin-commonjs": "^17.1.0",
+    "@rollup/plugin-node-resolve": "^11.2.0",
+    "@rollup/plugin-typescript": "^8.2.0",
     "@size-limit/preset-small-lib": "^4.5.5",
     "@strictsoftware/typedoc-plugin-monorepo": "^0.3.1",
     "@types/chai": "^4.1.3",
@@ -56,6 +59,8 @@
     "prettier": "^1.19.1",
     "replace-in-file": "^4.0.0",
     "rimraf": "^3.0.2",
+    "rollup": "^2.39.0",
+    "rollup-plugin-dts": "^2.0.1",
     "sinon": "^7.3.2",
     "size-limit": "^4.5.5",
     "ts-jest": "26.5.1",

rollup.config.js

@@ -0,0 +1,43 @@
+import resolve from '@rollup/plugin-node-resolve';
+import commonjs from '@rollup/plugin-commonjs';
+import typescript from '@rollup/plugin-typescript';
+import dts from 'rollup-plugin-dts';
+
+export default [
+  {
+    input: 'src/index.ts',
+    output: {
+      dir: 'cjs',
+      format: 'cjs',
+      sourcemap: false,
+    },
+    plugins: [
+      resolve(),
+      commonjs(),
+      typescript({
+        declaration: false,
+        declarationMap: false,
+        inlineSources: false,
+        sourceMap: false,
+      }),
+    ],
+  },
+  {
+    input: 'src/index.ts',
+    output: {
+      dir: 'esm',
+      format: 'esm',
+      sourcemap: false,
+    },
+    plugins: [
+      resolve(),
+      commonjs(),
+      typescript({ declaration: true, declarationDir: 'esm', inlineSources: false, sourceMap: false, rootDir: 'src' }),
+    ],
+  },
+  {
+    input: './esm/index.d.ts',
+    output: [{ file: 'index.d.ts', format: 'esm' }],
+    plugins: [dts()],
+  },
+];

rollup.dev.config.js

@@ -0,0 +1,16 @@
+import resolve from '@rollup/plugin-node-resolve';
+import commonjs from '@rollup/plugin-commonjs';
+import typescript from '@rollup/plugin-typescript';
+
+export default {
+  input: 'src/index.ts',
+  output: {
+    dir: 'esm',
+    format: 'esm',
+  },
+  plugins: [
+    resolve(),
+    commonjs(),
+    typescript({ declaration: false, declarationMap: false, inlineSources: false, sourceMap: false }),
+  ],
+};

typedoc.js

@@ -8,6 +8,7 @@ module.exports = {
     '**/*.js',
     '**/dist/**/*',
     '**/esm/**/*',
+    '**/cjs/**/*',
     '**/build/**/*',
     '**/packages/typescript/**/*',
     '**/packages/eslint-*/**/*',