Merge branch 'main' into dependencies/lodash-submodules

.circleci/config.yml

@@ -63,7 +63,9 @@ jobs:
           command: |
             if [ -n "$CIRCLE_PULL_REQUEST" ]
             then
-              git fetch origin refs/pull/$CIRCLE_PR_NUMBER/merge
+              # $CIRCLE_PR_NUMBER is not always defined:
+              # https://support.circleci.com/hc/en-us/articles/360047521451-Why-is-CIRCLE-PR-NUMBER-empty-
+              git fetch origin refs/pull/${CIRCLE_PULL_REQUEST##*/}/merge
               git checkout -qf FETCH_HEAD
             fi
       - restore_cache: *restore-yarn-cache
@@ -153,6 +155,14 @@ jobs:
           at: /tmp/verdaccio-workspace
       - run: ./scripts/integration-tests/e2e-vue-cli.sh
 
+  e2e-jest:
+    executor: node-executor
+    steps:
+      - checkout
+      - attach_workspace:
+          at: /tmp/verdaccio-workspace
+      - run: ./scripts/integration-tests/e2e-jest.sh
+
 workflows:
   version: 2
   build-standalone:
@@ -167,6 +177,7 @@ workflows:
                 - main
                 - next-8-dev
                 - next-8-rebased
+          context: babel-test262
   test262-pr:
     jobs:
       - approve-test262-run:
@@ -188,6 +199,7 @@ workflows:
                 - master
                 - next-8-dev
                 - next-8-rebased
+          context: babel-test262
   e2e:
     jobs:
       - publish-verdaccio
@@ -203,3 +215,6 @@ workflows:
       - e2e-vue-cli:
           requires:
             - publish-verdaccio
+      - e2e-jest:
+          requires:
+            - publish-verdaccio

.eslintignore

@@ -9,6 +9,7 @@ packages/babel-runtime-corejs2
 packages/babel-runtime-corejs3
 packages/*/node_modules
 packages/*/lib
+packages/*/dts
 packages/*/dist
 packages/*/test/fixtures
 packages/*/test/tmp

.eslintrc.js

@@ -19,11 +19,24 @@ module.exports = {
     node: true,
   },
   overrides: [
+    {
+      files: ["**/*.ts"],
+      parser: "@typescript-eslint/parser",
+      plugins: ["@typescript-eslint"],
+      rules: {
+        "no-unused-vars": "off",
+        "@typescript-eslint/no-unused-vars": "error",
+        "no-dupe-class-members": "off",
+        "@typescript-eslint/no-dupe-class-members": "error",
+        "no-undef": "off",
+        "no-redeclare": "off",
+      },
+    },
     {
       files: [
-        "packages/*/src/**/*.js",
-        "codemods/*/src/**/*.js",
-        "eslint/*/src/**/*.js",
+        "packages/*/src/**/*.{js,ts}",
+        "codemods/*/src/**/*.{js,ts}",
+        "eslint/*/src/**/*.{js,ts}",
       ],
       rules: {
         "@babel/development/no-undefined-identifier": "error",
@@ -37,7 +50,7 @@ module.exports = {
         "packages/*/test/**/*.js",
         "codemods/*/test/**/*.js",
         "eslint/*/test/**/*.js",
-        "packages/babel-helper-transform-fixture-test-runner/src/helpers.js",
+        "packages/babel-helper-transform-fixture-test-runner/src/helpers.{ts,js}",
         "test/**/*.js",
       ],
       env: {
@@ -53,15 +66,15 @@ module.exports = {
       },
     },
     {
-      files: ["packages/babel-plugin-*/src/index.js"],
+      files: ["packages/babel-plugin-*/src/index.{js,ts}"],
       excludedFiles: ["packages/babel-plugin-transform-regenerator/**/*.js"],
       rules: {
         "@babel/development/plugin-name": "error",
         eqeqeq: ["error", "always", { null: "ignore" }],
       },
     },
     {
-      files: ["packages/babel-parser/src/**/*.js"],
+      files: ["packages/babel-parser/src/**/*.{js,ts}"],
       rules: {
         "@babel/development-internal/dry-error-messages": [
           "error",

.flowconfig

@@ -16,6 +16,7 @@ lib/parser.js
 lib/third-party-libs.js.flow
 lib/preset-modules.js.flow
 packages/babel-types/lib/index.js.flow
+lib/babel-packages.js.flow
 
 [options]
 include_warnings=true

.github/workflows/ci.yml

@@ -42,7 +42,7 @@ jobs:
       - name: Use Node.js latest
         uses: actions/setup-node@v2-beta
         with:
-          node-version: "*"
+          node-version: "15"
       - name: Get yarn cache directory path
         id: yarn-cache-dir-path
         run: echo "::set-output name=dir::$(yarn config get cacheFolder)"
@@ -99,14 +99,14 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [13, 12, 10, 8, 6]
+        node-version: [14, 12, 10, 8, 6]
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
       - name: Use Node.js latest
         uses: actions/setup-node@v2-beta
         with:
-          node-version: "*" # Build Babel on latest node versions
+          node-version: "*" # Build Babel on latest node LTS versions
       - name: Get yarn cache directory path
         id: yarn-cache-dir-path
         run: echo "::set-output name=dir::$(yarn config get cacheFolder)"
@@ -117,6 +117,10 @@ jobs:
       - name: Install
         run: |
           BABEL_ENV=test-legacy make -j bootstrap-only
+      - name: Downgrade Jest for node <= 8
+        if: matrix.node-version == '6' || matrix.node-version == '8'
+        run: |
+          yarn remove jest && yarn add --dev jest@24
       - uses: actions/download-artifact@v2
         with:
           name: babel-artifact

.gitignore

@@ -70,3 +70,10 @@ packages/babel-standalone/babel.min.js
 /eslint/*/LICENSE
 !/packages/babel-eslint-plugin/LICENSE
 /.vscode
+
+/tsconfig.json
+/packages/*/tsconfig.json
+/packages/*/tsconfig.tsbuildinfo
+/packages/*/dts
+/codemods/*/dts
+/eslint/*/dts

.prettierrc

@@ -10,15 +10,14 @@
   "printWidth": 80,
   "overrides": [{
     "files": [
-      "**/codemods/*/src/**/*.js",
+      "**/codemods/*/src/**/*.{js,ts}",
       "**/codemods/*/test/**/*.js",
-      "**/packages/*/src/**/*.js",
+      "**/packages/*/src/**/*.{js,ts}",
       "**/packages/*/test/**/*.js",
-      "**/eslint/*/src/**/*.js",
+      "**/eslint/*/src/**/*.{js,ts}",
       "**/eslint/*/test/**/*.js"
     ],
     "options": {
-      "parser": "babel",
       "trailingComma": "all"
     }
   }]

.yarnrc.yml

@@ -4,6 +4,19 @@ enableTransparentWorkspaces: false
 
 nodeLinker: node-modules
 
+plugins:
+  - path: .yarn/plugins/@yarnpkg/plugin-babel-release-tool.cjs
+    spec: "https://raw.githubusercontent.com/nicolo-ribaudo/yarn-plugin-babel-release-tool/main/bundles/%40yarnpkg/plugin-babel-release-tool.js"
+
+releaseTool:
+  ignoreChanges:
+    - "*.md"
+    - "*.txt"
+    - test/**
+    - "**/test/**"
+    - codemods/**
+    - "@(!(native-modules|built-ins|plugins|package)).json"
+
 unsafeHttpWhitelist:
   - localhost