[pull] master from babel:master

.circleci/config.yml

@@ -1,4 +1,5 @@
-version: 2
+version: 2.1
+
 aliases:
   - &restore-node-modules-cache
     keys:
@@ -30,27 +31,178 @@ aliases:
   - &artifact_env_min
     path: ~/babel/packages/babel-preset-env-standalone/babel-preset-env.min.js
 
-jobs:
-  build:
+  - &test262_workdir
+    working_directory: ~/babel/babel-test262-runner
+
+  - &artifact_test262_tap
+    path: ~/test262.tap
+
+  - &artifact_test262_xunit
+    path: ~/test-results
+
+  - &artifact_test262_diff_tap
+    path: ~/diff.tap
+
+executors:
+  node-executor:
+    docker:
+      - image: circleci/node:13
     working_directory: ~/babel
+  # e2e-vue-cli test requires chromium
+  node-browsers-executor:
     docker:
-      - image: circleci/node:12
+      - image: circleci/node:13-browsers
+    working_directory: ~/babel
+
+jobs:
+  build-standalone:
+    executor: node-executor
     steps:
       - checkout
-      - restore-cache: *restore-yarn-cache
-      - restore-cache: *restore-node-modules-cache
-      - run: yarn --version
-      - run: make test-ci-coverage
-      # Builds babel-standalone with the regular Babel config
-      - run: IS_PUBLISH=true make build
-      # test-ci-coverage doesn't test babel-standalone, as trying to gather coverage
-      # data for a JS file that's several megabytes large is bound to fail. Here,
-      # we just run the babel-standalone test separately.
-      - run: ./node_modules/.bin/jest packages/babel-standalone/test/
-      - run: ./node_modules/.bin/jest packages/babel-preset-env-standalone/test/
+      - restore_cache: *restore-yarn-cache
+      - restore_cache: *restore-node-modules-cache
+        # Builds babel-standalone with the regular Babel config
+        # test-ci-coverage doesn't test babel-standalone, as trying to gather coverage
+      - run: IS_PUBLISH=true make -j build-standalone-ci
+        # data for a JS file that's several megabytes large is bound to fail. Here,
+        # we just run the babel-standalone test separately.
+      - run: yarn jest "\-standalone/test"
       - store_artifacts: *artifact_babel
       - store_artifacts: *artifact_babel_min
       - store_artifacts: *artifact_env
       - store_artifacts: *artifact_env_min
       - save_cache: *save-node-modules-cache
       - save_cache: *save-yarn-cache
+
+  test262:
+    executor: node-executor
+    steps:
+      - checkout
+      - run:
+          name: Sync with latest master branch (only on PRs)
+          command: |
+            if [ -n "$CIRCLE_PULL_REQUEST" ]
+            then
+              git fetch origin refs/pull/$CIRCLE_PR_NUMBER/merge
+              git checkout -qf FETCH_HEAD
+            fi
+      - restore_cache: *restore-yarn-cache
+      - restore_cache: *restore-node-modules-cache
+      - run:
+          name: Build Babel
+          command: BABEL_ENV=test make bootstrap
+      - run:
+          name: Setup Test Runner
+          command: |
+            git clone --recurse-submodules https://github.com/babel/babel-test262-runner
+            cd babel-test262-runner
+            yarn
+            yarn add tap-mocha-reporter --dev
+            node lib/download-node
+      - run:
+          name: Download master branch Test262 artifact
+          command: node lib/download-master-artifact ~/master.tap
+          <<: *test262_workdir
+      - run:
+          name: Run Test262
+          command: BABEL_PATH=.. node lib/run-tests I_AM_SURE | tee ~/test262.tap
+          <<: *test262_workdir
+      - store_artifacts: *artifact_test262_tap
+      - run:
+          name: Output Test262 results
+          command: |
+            cat ~/test262.tap | $(npm bin)/tap-mocha-reporter spec || true
+          <<: *test262_workdir
+      - run:
+          name: Compare previous master branch & current job results
+          command: |
+            mkdir -p ~/test-results/test262
+            node lib/compare-results ~/master.tap ~/test262.tap | tee ~/diff.tap
+          <<: *test262_workdir
+      - store_artifacts: *artifact_test262_diff_tap
+      - run:
+          name: Output comparision results and report to CircleCI
+          command: |
+            mkdir -p ~/test-results/test262
+            cat ~/diff.tap | $(npm bin)/tap-merge | $(npm bin)/tap-mocha-reporter xunit | tee ~/test-results/test262/results.xml
+          <<: *test262_workdir
+      - store_test_results: *artifact_test262_xunit
+      - save_cache: *save-node-modules-cache
+      - save_cache: *save-yarn-cache
+
+  publish-verdaccio:
+    executor: node-executor
+    steps:
+      - checkout
+      - run: yarn install
+      - run: ./scripts/integration-tests/publish-local.sh
+      - persist_to_workspace:
+          root: /tmp/verdaccio-workspace
+          paths:
+            - storage
+            - htpasswd
+
+  e2e-babel:
+    executor: node-executor
+    steps:
+      - checkout
+      - attach_workspace:
+          at: /tmp/verdaccio-workspace
+      - run: ./scripts/integration-tests/e2e-babel.sh
+
+  e2e-create-react-app:
+    executor: node-executor
+    steps:
+      - checkout
+      - attach_workspace:
+          at: /tmp/verdaccio-workspace
+      - run: ./scripts/integration-tests/e2e-create-react-app.sh
+
+  e2e-vue-cli:
+    executor: node-browsers-executor
+    steps:
+      - checkout
+      - attach_workspace:
+          at: /tmp/verdaccio-workspace
+      - run: ./scripts/integration-tests/e2e-vue-cli.sh
+
+workflows:
+  version: 2
+  build-standalone:
+    jobs:
+      - build-standalone
+  test262-master:
+    jobs:
+      - test262:
+          filters:
+            branches:
+              only:
+                - master
+  test262:
+    jobs:
+      - approve-test262-run:
+          type: approval
+          filters:
+            branches:
+              ignore:
+                - master
+      - test262:
+          requires:
+            - approve-test262-run
+          filters:
+            branches:
+              ignore:
+                - master
+  e2e:
+    jobs:
+      - publish-verdaccio
+      - e2e-babel:
+          requires:
+            - publish-verdaccio
+      - e2e-create-react-app:
+          requires:
+            - publish-verdaccio
+      - e2e-vue-cli:
+          requires:
+            - publish-verdaccio
+

.codesandbox/ci.json

@@ -0,0 +1,5 @@
+{
+  "installCommand": "bootstrap",
+  "buildCommand": false,
+  "sandboxes": ["kypop"]
+}

.eslintignore

@@ -17,10 +17,15 @@ codemods/*/lib
 codemods/*/dist
 codemods/*/test/fixtures
 codemods/*/test/tmp
-packages/babel-preset-env/data
+packages/babel-preset-env/data/[^(plugin-features|shipped-proposals).js]
 packages/babel-preset-env/test/debug-fixtures
 packages/babel-preset-env-standalone/babel-preset-env.js
 packages/babel-preset-env-standalone/babel-preset-env.min.js
 packages/babel-standalone/babel.js
 packages/babel-standalone/babel.min.js
 packages/babel-parser/test/expressions
+
+eslint/*/lib
+eslint/*/node_modules
+eslint/*/test
+eslint/*/tests

.eslintrc.js

@@ -0,0 +1,48 @@
+module.exports = {
+  root: true,
+  plugins: ["prettier", "@babel/development", "import"],
+  extends: "babel",
+  rules: {
+    "prettier/prettier": "error",
+    // TODO: remove after babel-eslint-config-internal is fully integrated into this repository.
+    "max-len": "off",
+  },
+  env: {
+    node: true,
+  },
+  overrides: [
+    {
+      files: [
+        "packages/*/src/**/*.js",
+        "codemods/*/src/**/*.js",
+        "eslint/*/src/**/*.js",
+      ],
+      rules: {
+        "@babel/development/no-undefined-identifier": "error",
+        "@babel/development/no-deprecated-clone": "error",
+        "import/no-extraneous-dependencies": "error",
+        "guard-for-in": "error",
+      },
+    },
+    {
+      files: [
+        "packages/*/test/**/*.js",
+        "codemods/*/test/**/*.js",
+        "eslint/*/test/**/*.js",
+        "packages/babel-helper-transform-fixture-test-runner/src/helpers.js",
+        "test/**/*.js",
+      ],
+      env: {
+        jest: true,
+      },
+    },
+    {
+      files: ["packages/babel-plugin-*/src/index.js"],
+      excludedFiles: ["packages/babel-plugin-transform-regenerator/**/*.js"],
+      rules: {
+        "@babel/development/plugin-name": "error",
+        eqeqeq: ["error", "always", { null: "ignore" }],
+      },
+    },
+  ],
+};

.flowconfig

@@ -24,4 +24,6 @@ suppress_comment= \\(.\\|\n\\)*\\$FlowIgnore
 suppress_type=$FlowFixMe
 suppress_type=$FlowSubtype
 esproposal.export_star_as=enable
+esproposal.optional_chaining=enable
+esproposal.nullish_coalescing=enable
 module.name_mapper='^@babel\/\([a-zA-Z0-9_\-]+\)$' -> '<PROJECT_ROOT>/packages/babel-\1/src/index'

.github/CHANGELOG-6to5.md

@@ -122,7 +122,7 @@
   * Restructure transformers so they're only ran if the AST contains nodes that they need to worry about. Improves transpilation speed significantly.
  * **Bug Fix**
   * Fix source maps not tracking end of node locations.
- * **Spec Compliancy**
+ * **Spec Compliance**
   * Use static super references as the home object is actually done at definition time.
  * **Polish**
   * Force the `es6.destructuring` transformer to be whitelisted when the `es7.objectSpread` transformer is.
@@ -479,7 +479,7 @@
 
 ## 2.12.3
 
- * **Spec Compliancy**
+ * **Spec Compliance**
   * Optional `typeof` transformer checks for `undefined` before passing it to the helper.
   * Class methods are now named.
 
@@ -551,7 +551,7 @@
   * Add `classesFastSuper` optional transformer that doesn't support parent getters and prototype changing.
   * Add `forOfFast` transformer that speeds up `for...of` on arrays but produces more code.
   * Add `--react-compat` to `bin/6to5`.
- * **Spec Compliancy**
+ * **Spec Compliance**
   * Disallow setters without a single parameter.
   * Add `configurable` and `writable` to defined properties.
   * Use define instead of assignment for class methods.
@@ -619,7 +619,7 @@
 
 ## 2.7.0
 
- * **Spec Compliancy**
+ * **Spec Compliance**
   * Disallow reassignments of imports.
  * **New Feature**
   * `reactCompat` option to enable pre-v0.12 react components.
@@ -662,7 +662,7 @@
  * **Polish**
   * Move `"use strict";` to inside module bodies instead of at the top of the file.
   * Better handling of dynamic imports.
- * **Spec Compliancy**
+ * **Spec Compliance**
   * Class inheritance now has a `function` or `null` type check.
   * Add `interopRequireWildcard` around wildcard imports and exports to handle non-object exports.
 

.github/CHANGELOG-v4.md

@@ -110,7 +110,7 @@
   * Throw an error on different `babel` and `babel-runtime` versions.
   * Replicate module environment for `babel-node` eval.
   * Clean up classes output.
- * **Spec Compliancy**
+ * **Spec Compliance**
   * Make it illegal to use a rest parameter on a setter.
 
 ## 4.6.6
@@ -150,8 +150,8 @@
 
  * **New Feature**
   * Desugar sticky regexes to a new constructor expression so it can be handled by a polyfill.
- * **Spec Compliancy**
-  * `for...of` now outputs in a lengthy `try...catch` this is to ensure spec compliancy in regards to iterator returns and abrupt completions. See [google/traceur-compiler#1773](https://github.com/google/traceur-compiler/issues/1773) and [babel/babel/#838](https://github.com/babel/babel/issues/838) for more information.
+ * **Spec Compliance**
+  * `for...of` now outputs in a lengthy `try...catch` this is to ensure spec compliance in regards to iterator returns and abrupt completions. See [google/traceur-compiler#1773](https://github.com/google/traceur-compiler/issues/1773) and [babel/babel/#838](https://github.com/babel/babel/issues/838) for more information.
  * **Polish**
   * Rest parameters that are only referred to via number properties on member expressions are desugared into a direct `arguments` reference. Thanks [@neVERberleRfellerER](https://github.com/neVERberleRfellerER)!
   * `$ babel` no longer exits on syntax errors.