Rollup v2.0.0

.circleci/config.yml

@@ -1,23 +1,5 @@
 version: 2
 
-unit_tests: &unit_tests
-  steps:
-    - checkout
-    - restore_cache:
-        key: dependency-cache-{{ checksum "package-lock.json" }}
-    - run:
-        name: Run unit tests.
-        command: npm run ci:test
-
-unit_tests_12: &unit_tests_12
-  steps:
-    - checkout
-    - restore_cache:
-        key: dependency-cache-{{ checksum "package-lock.json" }}
-    - run:
-        name: Run unit tests.
-        command: npm run ci:test_12
-
 jobs:
   analysis:
     docker:
@@ -27,30 +9,35 @@ jobs:
       - restore_cache:
           key: dependency-cache-{{ checksum "package-lock.json" }}
       - run:
-          name: Install Dependencies
+          name: Installing Dependencies
           command: npm ci --ignore-scripts
       - run:
-          name: Run linting.
+          name: Running linting
           command: npm run ci:lint
       - run:
-          name: Run NPM Security Audit
+          name: Running NPM Security Audit
           command: npm run security
       - save_cache:
           key: dependency-cache-{{ checksum "package-lock.json" }}
           paths:
             - ./node_modules
-  node-v6-latest:
-    docker:
-      - image: rollupcabal/circleci-node-v6:latest
-    <<: *unit_tests
-  node-v8-latest:
-    docker:
-      - image: rollupcabal/circleci-node-v8:latest
-    <<: *unit_tests
   node-v10-latest:
     docker:
       - image: rollupcabal/circleci-node-v10:latest
-    <<: *unit_tests
+    steps:
+      - checkout
+      - restore_cache:
+          key: dependency-cache-{{ checksum "package-lock.json" }}
+      - run:
+          name: Running tests
+          command: npm run ci:test
+      - store_artifacts:
+          name: Storing browser build for REPL
+          path: /home/circleci/project/dist/rollup.browser.js
+          destination: rollup.browser.js
+      - run:
+          name: Post REPL comment
+          command: ./scripts/post-comment.js
   node-v12-latest:
     docker:
       - image: rollupcabal/circleci-node-v12:latest
@@ -59,9 +46,10 @@ jobs:
       - restore_cache:
           key: dependency-cache-{{ checksum "package-lock.json" }}
       - run:
-          name: Run tests with coverage.
+          name: Running tests with coverage
           command: npm run ci:coverage
 
+
 workflows:
   version: 2
   validate-test:
@@ -70,18 +58,6 @@ workflows:
           filters:
             tags:
               only: /.*/
-      - node-v6-latest:
-          requires:
-            - analysis
-          filters:
-            tags:
-              only: /.*/
-      - node-v8-latest:
-          requires:
-            - analysis
-          filters:
-            tags:
-              only: /.*/
       - node-v10-latest:
           requires:
             - analysis

.eslintrc.json

@@ -1,6 +1,11 @@
 {
-    "root": true,
-    "rules": {
+	"ignorePatterns": [
+		"test/*/samples/**/*.js",
+		"!test/*/samples/**/_config.js",
+		"test/leak/index.js",
+		"**/*.ts"
+	],
+	"rules": {
         "indent": [ 2, "tab", { "SwitchCase": 1 } ],
         "semi": [ 2, "always" ],
         "keyword-spacing": [ 2, { "before": true, "after": true } ],
@@ -32,7 +37,7 @@
         "plugin:import/warnings"
     ],
     "parserOptions": {
-        "ecmaVersion": 6,
+        "ecmaVersion": 2018,
         "sourceType": "module"
     },
     "settings": {

.github/workflows/node-windows.yml

@@ -4,30 +4,25 @@ on: [push]
 
 jobs:
   build:
-
     runs-on: windows-2019
 
     strategy:
       matrix:
-        node: [ '10', '6' ]
+        node: ['12', '10']
 
     name: ${{ matrix.node }} (Windows)
     steps:
-    - name: Configure git line-breaks
-      run: git config --global core.autocrlf false
-    - name: Checkout Commit
-      uses: actions/checkout@v1
-    - name: Setup Node
-      uses: actions/setup-node@v1
-      with:
-        node-version: ${{ matrix.node }}
-    - name: Check npm version
-      # This is only necessary until we dump Node 6
-      run: if [ ${{ matrix.node }} -lt 8 ]; then npm i npm@5 -g; fi;
-      shell: bash
-    - name: Install dependencies
-      run: npm ci --ignore-scripts
-    - name: Run tests
-      run: npm test
-      env:
-        CI: true
+      - name: Configure git line-breaks
+        run: git config --global core.autocrlf false
+      - name: Checkout Commit
+        uses: actions/checkout@v1
+      - name: Setup Node
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node }}
+      - name:  Install dependencies
+        run: npm ci --ignore-scripts
+      - name: Run tests
+        run: npm test
+        env:
+          CI: true

.lintstagedrc

@@ -1,17 +1,14 @@
 {
   "{src,bin,browser,typings}/**/*.ts": [
     "prettier --write",
-    "tslint --project . --fix",
-    "git add"
+    "tslint --project . --fix"
   ],
   "test/**/*.ts": [
     "prettier --write",
-    "tslint --project test/typescript --fix",
-    "git add"
+    "tslint --project test/typescript --fix"
   ],
   "{test/test,test/*/index,test/utils,test/**/_config}.js": [
     "prettier --write",
-    "eslint --fix",
-    "git add"
+    "eslint --fix"
   ]
 }

CHANGELOG.md

@@ -1,5 +1,68 @@
 # rollup changelog
 
+## 2.0.0
+*2020-03-06*
+
+### Breaking Changes
+* Rollup now requires at least Node 10 to run, or a sufficiently modern browser (#3346)
+* The file structure of Rollup's ESM builds has changed:
+  - The main ESM entry point is now at `rollup/dist/es/rollup.js` instead of `rollup/dist/rollup.es.js`
+  - The ESM browser build is at `rollup/dist/es/rollup.browser.js` instead of `rollup/dist/rollup.browser.es.js`
+
+  In general, the ESM builds now follow the same naming scheme as the CJS builds but are located in the `rollup/dist/es` subfolder instead of `rollup/dist` (#3391)
+* The "watch.chokidar" option no longer accepts a `boolean` value but only an object of parameters that is passed to the bundled Chokidar instance. Chokidar installations by the user will be ignored in favour of the bundled instance (#3331)
+* Modules that are completely tree-shaken will no longer be listed as part of any chunks in `generateBundle`
+* The `experimentalOptimizeChunks` and `chunkGroupingSize` options have been removed
+* [acorn](https://github.com/acornjs/acorn) plugins can only be used if they accept a passed-in acorn instance instead of importing it themselves. See https://github.com/acornjs/acorn/pull/870#issuecomment-527339830 for what needs to be done to make plugins compatible that do not support this yet (#3391)
+* Emitted chunks now have the TypeScript type `UInt8Array` instead of `Buffer`. A `Buffer` can still be used, though (#3395)
+* The TypeScript types no longer use ESTree types for AST nodes but a very generic type that does not contain information specific to certain node types (#3395)
+* The signature of the `writeBundle` plugin hook has been changed to match `generateBundle`: The bundle object is now passed as second parameter instead of first and the first parameter is the output options (#3361)
+* The following plugin hooks have been removed:
+  - ongenerate: use `generateBundle` instead
+  - onwrite: use `writeBundle` instead
+  - transformBundle: use `renderChunk` instead
+  - transformChunk: use `renderChunk` instead
+* You can no longer access `this.watcher` on the plugin context.
+* The `transform` hook can no longer return `dependencies`.
+* The `treeshake.pureExternalModules` option will now show a deprecation warning when used: use `treeshake.moduleSideEffects: 'no-external'` instead
+* Using `import.meta.ROLLUP_ASSET_URL_<..>` and `import.meta.ROLLUP_CHUNK_URL_<..>` in code will now show warnings: use `import.meta.ROLLUP_FILE_URL_<..>` instead
+* The `resolveAssetUrl` hook will now show a deprecation warning when used: use `resolveFileUrl` instead
+* The following plugin context functions will show warnings when used:
+  - `this.emitAsset`: use `this.emitFile`
+  - `this.emitChunk`: use `this.emitFile`
+  - `this.getAssetFileName`: use `this.getFileName`
+  - `this.getChunkFileName`: use `this.getFileName`
+  - `this.isExternal`: use `this.resolve`
+  - `this.resolveId`: use `this.resolve`
+* Directly adding properties to the bundle object in the `generateBundle` is deprecated will show a warning (removing properties is allowed, though): Use `this.emitFile`
+* Accessing `chunk.isAsset` on the bundle is deprecated: Use `chunk.type === 'asset'` instead
+* The error code for a missing `name` property when targeting UMD has been changed to `MISSING_NAME_OPTION_FOR_IIFE_EXPORT` to emphasize this is needed for the IIFE part of UMD (#3393)
+
+### Features
+* Rollup now bundles [Chokidar](https://github.com/paulmillr/chokidar) for a better watch experience (#3331)
+* Rollup now bundles [acorn](https://github.com/acornjs/acorn) again, removing its only external dependency (#3391)
+* Do not consider empty imports from side-effect-free modules for chunking and hoist side-effect imports if necessary (#3369)
+* Rollup can now be imported as an ES module in Node via `import {rollup} from 'rollup'`. Note that this relies on Node's experimental [conditional package exports](https://nodejs.org/dist/latest-v13.x/docs/api/esm.html#esm_conditional_exports) feature and is therefore itself experimental (#3391)
+* `systemjs` can be used as format alias for `system` (#3381)
+
+### Bug Fixes
+* Unknown output options now trigger a warning when using the JavaScript API (#3352)
+* Rollup will no longer introduce Node types into TypeScript projects that do not use them (#3395)
+* Generate correct sourcemaps when tree-shaking occurs in a multi-file bundle (#3423)
+
+### Pull Requests
+* [#3331](https://github.com/rollup/rollup/pull/3331): Bundle Chokidar (@lukastaegert)
+* [#3343](https://github.com/rollup/rollup/pull/3343): Remove experimentalOptimizeChunks (@lukastaegert)
+* [#3346](https://github.com/rollup/rollup/pull/3346): Update minimum required Node version to 10 (@lukastaegert)
+* [#3352](https://github.com/rollup/rollup/pull/3352): Remove active deprecations (@lukastaegert)
+* [#3361](https://github.com/rollup/rollup/pull/3361): Change writeBundle signature to match generateBundle (@lukastaegert)
+* [#3369](https://github.com/rollup/rollup/pull/3369): Avoid empty imports from side-effect-free chunks (@lukastaegert)
+* [#3381](https://github.com/rollup/rollup/pull/3381): Rename esm to es everywhere, add systemjs alias (@lukastaegert)
+* [#3391](https://github.com/rollup/rollup/pull/3391): Bundle acorn, allow importing Rollup as Node ES module, update dependencies (@lukastaegert)
+* [#3393](https://github.com/rollup/rollup/pull/3393): Better error code for name-less umd bundle (@rail44)
+* [#3395](https://github.com/rollup/rollup/pull/3395): Remove `@types` dependencies (@lukastaegert)
+* [#3423](https://github.com/rollup/rollup/pull/3423): Update magic-string and fix sourcemaps (@lukastaegert)
+
 ## 1.32.1
 *2020-03-06*