feat: Support ESLint 7.x

Co-authored-by: Michaël De Boey <[email protected]>
Co-authored-by: Jordan Harband <[email protected]>

Author: MichaelDeBoey

.travis.yml

@@ -1,54 +1,94 @@
 language: node_js
 node_js:
-  - '12'
-  - '10'
-  - '8'
-  - '6'
+  # eslint 7: node 10+
+  # jest 26: node 10+
+  - 14
+  - 12
+  - 10
 install:
-  - 'yarn add "eslint@${ESLINT}" "jest@${JEST}" "babel-jest@${JEST}"'
-  - 'yarn'
+  - 'yarn add "eslint@${ESLINT}" "jest@${JEST}" "babel-jest@${JEST}" --ignore-engines'
+  - 'if [ "${ESLINT-}" = 4 ]; then yarn add eslint-config-airbnb-base@13 --ignore-engines; fi'
+  - 'yarn --ignore-engines'
 env:
+  - 'ESLINT=4 JEST=21'
+  - 'ESLINT=5 JEST=21'
+  - 'ESLINT=6 JEST=21'
+  - 'ESLINT=7 JEST=21'
+  - 'ESLINT=4 JEST=22'
+  - 'ESLINT=5 JEST=22'
+  - 'ESLINT=6 JEST=22'
+  - 'ESLINT=7 JEST=22'
+  - 'ESLINT=4 JEST=23'
+  - 'ESLINT=5 JEST=23'
+  - 'ESLINT=6 JEST=23'
+  - 'ESLINT=7 JEST=23'
   - 'ESLINT=4 JEST=24'
   - 'ESLINT=5 JEST=24'
   - 'ESLINT=6 JEST=24'
+  - 'ESLINT=7 JEST=24'
   - 'ESLINT=4 JEST=25'
   - 'ESLINT=5 JEST=25'
   - 'ESLINT=6 JEST=25'
+  - 'ESLINT=7 JEST=25'
   - 'ESLINT=4 JEST=26'
   - 'ESLINT=5 JEST=26'
   - 'ESLINT=6 JEST=26'
+  - 'ESLINT=7 JEST=26'
 matrix:
-  exclude:
-    # exclude eslint 6 on node 6
+  # jest 21: 4+
+  # jest 22: 6+
+  # jest 25: 8+
+  include:
+    # eslint 4, node 4/6/8
+    - node_js: '4'
+      env: 'ESLINT=4 JEST=21'
     - node_js: '6'
-      env: 'ESLINT=6 JEST=24'
-    - node_js: '6'
-      env: 'ESLINT=6 JEST=25'
-    # exclude jest 25 on node 6
+      env: 'ESLINT=4 JEST=21'
+    - node_js: '8'
+      env: 'ESLINT=4 JEST=21'
     - node_js: '6'
-      env: 'ESLINT=4 JEST=25'
+      env: 'ESLINT=4 JEST=22'
+    - node_js: '8'
+      env: 'ESLINT=4 JEST=22'
     - node_js: '6'
-      env: 'ESLINT=5 JEST=25'
+      env: 'ESLINT=4 JEST=23'
+    - node_js: '8'
+      env: 'ESLINT=4 JEST=23'
     - node_js: '6'
-      env: 'ESLINT=6 JEST=25'
-    # exclude jest 25 on node 8
+      env: 'ESLINT=4 JEST=24'
     - node_js: '8'
-      env: 'ESLINT=4 JEST=25'
+      env: 'ESLINT=4 JEST=24'
     - node_js: '8'
-      env: 'ESLINT=5 JEST=25'
+      env: 'ESLINT=4 JEST=25'
+
+    # eslint 5, node 6/8
+    - node_js: '6'
+      env: 'ESLINT=5 JEST=21'
     - node_js: '8'
-      env: 'ESLINT=6 JEST=25'
-    # exclude jest 26 on node 6
+      env: 'ESLINT=5 JEST=21'
     - node_js: '6'
-      env: 'ESLINT=4 JEST=26'
+      env: 'ESLINT=5 JEST=22'
+    - node_js: '8'
+      env: 'ESLINT=5 JEST=22'
     - node_js: '6'
-      env: 'ESLINT=5 JEST=26'
+      env: 'ESLINT=5 JEST=23'
+    - node_js: '8'
+      env: 'ESLINT=5 JEST=23'
     - node_js: '6'
-      env: 'ESLINT=6 JEST=26'
-    # exclude jest 26 on node 8
+      env: 'ESLINT=5 JEST=24'
+    - node_js: '8'
+      env: 'ESLINT=5 JEST=24'
     - node_js: '8'
-      env: 'ESLINT=4 JEST=26'
+      env: 'ESLINT=5 JEST=25'
+
+    # eslint 6, node 8
     - node_js: '8'
-      env: 'ESLINT=5 JEST=26'
+      env: 'ESLINT=6 JEST=21'
     - node_js: '8'
-      env: 'ESLINT=6 JEST=26'
+      env: 'ESLINT=6 JEST=22'
+    - node_js: '8'
+      env: 'ESLINT=6 JEST=23'
+    - node_js: '8'
+      env: 'ESLINT=6 JEST=24'
+    - node_js: '8'
+      env: 'ESLINT=6 JEST=25'

jest.config.js

@@ -8,6 +8,7 @@ module.exports = {
   projects: [
     {
       displayName: 'e2e',
+      testEnvironment: 'node',
       testPathIgnorePatterns: [
         '/examples/',
         '/node_modules/',
@@ -21,10 +22,12 @@ module.exports = {
     },
     {
       displayName: 'tests',
+      testEnvironment: 'node',
       testMatch: ['<rootDir>/src/**/__tests__/**/*.js'],
     },
     {
       displayName: 'lint',
+      testEnvironment: 'node',
       runner: './',
       testPathIgnorePatterns: [
         '/examples/',

package.json

@@ -27,18 +27,18 @@
     "chalk": "^2.4.1",
     "cosmiconfig": "^5.0.0",
     "create-jest-runner": "^0.5.3",
-    "eslint": "^4.0.0 || ^5.0.0 || ^6.0.0"
+    "eslint": "^4.0.0 || ^5.0.0 || ^6.0.0 || ^7.0.0"
   },
   "devDependencies": {
     "@babel/cli": "^7.1.0",
     "@babel/core": "^7.1.0",
     "@babel/preset-env": "~7.7.0",
     "babel-jest": "^25.1.0",
-    "eslint-config-airbnb-base": "^13.1.0",
-    "eslint-config-prettier": "^4.3.0",
-    "eslint-plugin-import": "^2.14.0",
-    "eslint-plugin-jest": "^22.6.4",
-    "eslint-plugin-prettier": "^3.1.0",
+    "eslint-config-airbnb-base": "^14.2.0",
+    "eslint-config-prettier": "^6.11.0",
+    "eslint-plugin-import": "^2.21.2",
+    "eslint-plugin-jest": "^23.13.2",
+    "eslint-plugin-prettier": "^3.1.3",
     "execa": "^1.0.0",
     "jest": "^21.0.0 || ^22.0.0 || ^23.0.0 || ^24.0.0 || ^25.1.0 || ^26.0.0",
     "jest-watch-select-projects": "^0.1.1",
@@ -47,7 +47,7 @@
     "rimraf": "^2.6.2"
   },
   "peerDependencies": {
-    "eslint": "^4.0.0 || ^5.0.0 || ^6.0.0",
+    "eslint": "^4.0.0 || ^5.0.0 || ^6.0.0 || ^7.0.0",
     "jest": "^21.0.0 || ^22.0.0 || ^23.0.0 || ^24.0.0 || ^25.1.0 || ^26.0.0"
   },
   "prettier": {

src/utils/normalizeConfig.js

@@ -114,16 +114,18 @@ const normalizeCliOptions = rawConfig =>
 
     const value = rawConfig[key] !== undefined ? rawConfig[key] : defaultValue;
 
-    return Object.assign({}, config, {
+    return {
+      ...config,
       [name]: transform(value),
-    });
+    };
   }, {});
 /* eslint-enable no-param-reassign */
 
 const normalizeConfig = config => {
-  return Object.assign({}, config, {
+  return {
+    ...config,
     cliOptions: normalizeCliOptions(config.cliOptions || {}),
-  });
+  };
 };
 
 module.exports = normalizeConfig;

src/watchFixPlugin/__tests__/index.test.js

@@ -12,7 +12,7 @@ describe('watchFixPlugin', () => {
   beforeEach(() => {
     jest.resetModules();
     configOverrides = require('../../utils/configOverrides');
-    WatchFixPlugin = require('../');
+    WatchFixPlugin = require('..');
   });
 
   it('shows the correct prompt', async () => {