.babelrc

@@ -1,9 +1,18 @@
 {
-  "presets": [ "es2015-argon" ],
+  "presets": ["airbnb"],
   "sourceMaps": "inline",
+  "retainLines": true,
   "env": {
     "test": {
-      "plugins": [ "istanbul" ]
+      "plugins": [
+        "istanbul",
+        ["module-resolver", { "root": ["./src/"] }],
+      ]
+    },
+    "testCompiled": {
+      "plugins": [
+        ["module-resolver", { "root": ["./lib/"] }],
+      ]
     }
   }
 }

.coveralls.yml

@@ -1,2 +1,2 @@
 ---
-repo_token: fW3moW39Z8pKOgqTnUMT68DnNCd2SM8Ly
+repo_token: fW3moW39Z8pKOgqTnUMT68DnNCd2SM8Ly

.eslintignore

@@ -0,0 +1,12 @@
+lib
+coverage
+.nyc_output
+node_modules
+tests/files/malformed.js
+tests/files/with-syntax-error
+tests/files/just-json-files/invalid.json
+tests/files/typescript-d-ts/
+resolvers/webpack/test/files
+# we want to ignore "tests/files" here, but unfortunately doing so would
+# interfere with unit test and fail it for some reason.
+# tests/files

.eslintrc

@@ -0,0 +1,104 @@
+{
+    "root": true,
+    "plugins": [
+        "eslint-plugin",
+        "import",
+    ],
+    "extends": [
+        "eslint:recommended",
+        "plugin:eslint-plugin/recommended",
+        "plugin:import/recommended",
+    ],
+    "env": {
+        "node": true,
+        "es6": true,
+    },
+    "parserOptions": {
+        "sourceType": "module",
+        "ecmaVersion": 2020,
+    },
+    "rules": {
+        "comma-dangle": [2, "always-multiline"],
+        "comma-style": [2, "last"],
+        "curly": [2, "multi-line"],
+        "eol-last": [2, "always"],
+        "eqeqeq": [2, "allow-null"],
+        "func-call-spacing": 2,
+        "indent": [2, 2],
+        "keyword-spacing": ["error", {
+          before: true,
+          after: true,
+          overrides: {
+            return: { after: true },
+            throw: { after: true },
+            case: { after: true }
+          }
+        }],
+        "max-len": [1, 99, 2],
+        "no-cond-assign": [2, "always"],
+        "no-return-assign": [2, "always"],
+        "no-shadow": 1,
+        "no-var": 2,
+        "object-curly-spacing": [2, "always"],
+        "object-shorthand": ["error", "always", {
+            "ignoreConstructors": false,
+            "avoidQuotes": true,
+        }],
+        "one-var": [2, "never"],
+        "prefer-const": 2,
+        "quotes": [2, "single", {
+            "allowTemplateLiterals": true,
+            "avoidEscape": true,
+        }],
+        "semi": [2, "always"],
+        "space-before-function-paren": ["error", {
+            "anonymous": "always",
+            "named": "never",
+            "asyncArrow": "always",
+        }],
+
+        "eslint-plugin/consistent-output": [
+            "error",
+            "always",
+        ],
+        "eslint-plugin/meta-property-ordering": "error",
+        "eslint-plugin/no-deprecated-context-methods": "error",
+        "eslint-plugin/no-deprecated-report-api": "off",
+        "eslint-plugin/prefer-replace-text": "error",
+        "eslint-plugin/report-message-format": "error",
+        "eslint-plugin/require-meta-schema": "error",
+        "eslint-plugin/require-meta-type": "error",
+
+        // dog fooding
+        "import/no-extraneous-dependencies": "error",
+        "import/unambiguous": "off",
+    },
+
+    "settings": {
+        "import/resolver": {
+            "node": {
+                "paths": [
+                    "src",
+                ],
+            },
+        },
+    },
+
+    "overrides": [
+        {
+            "files": "scripts/**",
+            "rules": {
+                "no-console": "off",
+            },
+        },
+        {
+            "files": [
+                "resolvers/*/test/**/*",
+            ],
+            "env": {
+                "mocha": true,
+                "es6": false
+            },
+        }
+    ],
+}

.github/FUNDING.yml

@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: eslint-plugin-import # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/eslint-plugin-import
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']

.github/workflows/node-4+.yml

@@ -0,0 +1,114 @@
+name: 'Tests: node.js'
+
+on: [pull_request, push]
+
+jobs:
+  matrix:
+    runs-on: ubuntu-latest
+    outputs:
+      latest: ${{ steps.set-matrix.outputs.requireds }}
+      minors: ${{ steps.set-matrix.outputs.optionals }}
+    steps:
+      - uses: ljharb/actions/node/matrix@main
+        id: set-matrix
+        with:
+          versionsAsRoot: true
+          type: majors
+          preset: '>= 6' # preset: '>=4' # see https://github.com/import-js/eslint-plugin-import/issues/2053
+
+  latest:
+    needs: [matrix]
+    name: 'latest majors'
+    runs-on: ubuntu-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        node-version: ${{ fromJson(needs.matrix.outputs.latest) }}
+        eslint:
+          - 8
+          - 7
+          - 6
+          - 5
+          - 4
+          - 3
+          - 2
+        include:
+          - node-version: 'lts/*'
+            eslint: 7
+            ts-parser: 3
+            env:
+              TS_PARSER: 3
+          - node-version: 'lts/*'
+            eslint: 7
+            ts-parser: 2
+            env:
+              TS_PARSER: 2
+        exclude:
+          - node-version: 15
+            eslint: 8
+          - node-version: 13
+            eslint: 8
+          - node-version: 11
+            eslint: 8
+          - node-version: 10
+            eslint: 8
+          - node-version: 9
+            eslint: 8
+          - node-version: 9
+            eslint: 7
+          - node-version: 8
+            eslint: 8
+          - node-version: 8
+            eslint: 7
+          - node-version: 7
+            eslint: 8
+          - node-version: 7
+            eslint: 7
+          - node-version: 7
+            eslint: 6
+          - node-version: 6
+            eslint: 8
+          - node-version: 6
+            eslint: 7
+          - node-version: 6
+            eslint: 6
+          - node-version: 5
+            eslint: 8
+          - node-version: 5
+            eslint: 7
+          - node-version: 5
+            eslint: 6
+          - node-version: 5
+            eslint: 5
+          - node-version: 4
+            eslint: 8
+          - node-version: 4
+            eslint: 7
+          - node-version: 4
+            eslint: 6
+          - node-version: 4
+            eslint: 5
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: ljharb/actions/node/install@main
+        continue-on-error: ${{ matrix.eslint == 4 && matrix.node-version == 4 }}
+        name: 'nvm install ${{ matrix.node-version }} && npm install, with eslint ${{ matrix.eslint }}'
+        env:
+          ESLINT_VERSION: ${{ matrix.eslint }}
+          TRAVIS_NODE_VERSION: ${{ matrix.node-version }}
+        with:
+          node-version: ${{ matrix.node-version }}
+          after_install: npm run copy-metafiles && ./tests/dep-time-travel.sh
+          skip-ls-check: true
+      - run: npm run pretest
+      - run: npm run tests-only
+      - uses: codecov/codecov-action@v1
+
+  node:
+    name: 'node 4+'
+    needs: [latest]
+    runs-on: ubuntu-latest
+    steps:
+      - run: 'echo tests completed'

.github/workflows/node-pretest.yml

@@ -0,0 +1,28 @@
+name: 'Tests: pretest/posttest'
+
+on: [pull_request, push]
+
+jobs:
+  # pretest:
+  #   runs-on: ubuntu-latest
+
+  #   steps:
+  #     - uses: actions/checkout@v2
+  #     - uses: ljharb/actions/node/install@main
+  #       name: 'nvm install lts/* && npm install'
+  #       with:
+  #         node-version: 'lts/*'
+  #         skip-ls-check: true
+  #     - run: npm run pretest
+
+  posttest:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: ljharb/actions/node/install@main
+        name: 'nvm install lts/* && npm install'
+        with:
+          node-version: 'lts/*'
+          skip-ls-check: true
+      - run: npm run posttest

.github/workflows/packages.yml

@@ -0,0 +1,53 @@
+name: 'Tests: packages'
+
+on: [pull_request, push]
+
+jobs:
+  matrix:
+    runs-on: ubuntu-latest
+    outputs:
+      latest: ${{ steps.set-matrix.outputs.requireds }}
+      minors: ${{ steps.set-matrix.outputs.optionals }}
+    steps:
+      - uses: ljharb/actions/node/matrix@main
+        id: set-matrix
+        with:
+          type: 'majors'
+          preset: '>= 6' # preset: '>=4' # see https://github.com/import-js/eslint-plugin-import/issues/2053
+          versionsAsRoot: true
+
+  tests:
+    needs: [matrix]
+    name: 'packages'
+    runs-on: ubuntu-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        node-version: ${{ fromJson(needs.matrix.outputs.latest) }}
+        package:
+          - resolvers/node
+          - resolvers/webpack
+          # - memo-parser
+          # - utils
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: ljharb/actions/node/install@main
+        name: 'nvm install ${{ matrix.node-version }} && npm install'
+        env:
+          ESLINT_VERSION: ${{ matrix.eslint }}
+          TRAVIS_NODE_VERSION: ${{ matrix.node-version }}
+        with:
+          node-version: ${{ matrix.node-version }}
+          after_install: npm run copy-metafiles && ./tests/dep-time-travel.sh && cd ${{ matrix.package }} && npm install
+          skip-ls-check: true
+      - run: cd ${{ matrix.package }} && npm run tests-only
+      - uses: codecov/codecov-action@v1
+
+  packages:
+    name: 'packages: all tests'
+    needs: [tests]
+    runs-on: ubuntu-latest
+    steps:
+      - run: 'echo tests completed'