[eslint config] [*] [breaking] add eslint v6, drop eslint v4

See #2036

Author: ljharb

.travis.yml

@@ -5,10 +5,6 @@ node_js:
   - "10"
   - "9"
   - "8"
-  - "7"
-  - "6"
-  - "5"
-  - "4"
 before_install:
   - 'nvm install-latest-npm'
 install:
@@ -20,37 +16,37 @@ script:
 sudo: false
 env:
   matrix:
+    - 'TEST=true ESLINT=6 PACKAGE=eslint-config-airbnb-base'
+    - 'TEST=true ESLINT=6 PACKAGE=eslint-config-airbnb'
     - 'TEST=true ESLINT=5 PACKAGE=eslint-config-airbnb-base'
     - 'TEST=true ESLINT=5 PACKAGE=eslint-config-airbnb'
-    - 'TEST=true ESLINT=4 PACKAGE=eslint-config-airbnb-base'
-    - 'TEST=true ESLINT=4 PACKAGE=eslint-config-airbnb'
 matrix:
   fast_finish: true
   include:
     - node_js: "lts/*"
-      env: PREPUBLISH=true ESLINT=5 PACKAGE=eslint-config-airbnb-base
+      env: PREPUBLISH=true ESLINT=6 PACKAGE=eslint-config-airbnb-base
     - node_js: "lts/*"
-      env: PREPUBLISH=true ESLINT=5 PACKAGE=eslint-config-airbnb
+      env: PREPUBLISH=true ESLINT=6 PACKAGE=eslint-config-airbnb
     - node_js: "lts/*"
-      env: PREPUBLISH=true ESLINT=4 PACKAGE=eslint-config-airbnb-base
+      env: PREPUBLISH=true ESLINT=5 PACKAGE=eslint-config-airbnb-base
     - node_js: "lts/*"
-      env: PREPUBLISH=true ESLINT=4 PACKAGE=eslint-config-airbnb
+      env: PREPUBLISH=true ESLINT=5 PACKAGE=eslint-config-airbnb
     - node_js: "lts/*"
       env: LINT=true
-  exclude:
-    - node_js: "5"
+    - node_js: "7"
       env: TEST=true ESLINT=5 PACKAGE=eslint-config-airbnb-base
-    - node_js: "5"
+    - node_js: "7"
       env: TEST=true ESLINT=5 PACKAGE=eslint-config-airbnb
-    - node_js: "4"
+    - node_js: "6"
       env: TEST=true ESLINT=5 PACKAGE=eslint-config-airbnb-base
-    - node_js: "4"
+    - node_js: "6"
       env: TEST=true ESLINT=5 PACKAGE=eslint-config-airbnb
+  exclude:
   allow_failures:
+    - node_js: "11"
     - node_js: "9"
     - node_js: "7"
-    - node_js: "5"
+    - env: PREPUBLISH=true ESLINT=6 PACKAGE=eslint-config-airbnb-base
+    - env: PREPUBLISH=true ESLINT=6 PACKAGE=eslint-config-airbnb
     - env: PREPUBLISH=true ESLINT=5 PACKAGE=eslint-config-airbnb-base
     - env: PREPUBLISH=true ESLINT=5 PACKAGE=eslint-config-airbnb
-    - env: PREPUBLISH=true ESLINT=4 PACKAGE=eslint-config-airbnb-base
-    - env: PREPUBLISH=true ESLINT=4 PACKAGE=eslint-config-airbnb

packages/eslint-config-airbnb-base/package.json

@@ -56,19 +56,19 @@
     "babel-preset-airbnb": "^2.6.0",
     "babel-tape-runner": "^2.0.1",
     "eclint": "^2.8.1",
-    "eslint": "^4.19.1 || ^5.3.0",
+    "eslint": "^5.16.0 || ^6.1.0",
     "eslint-find-rules": "^3.4.0",
     "eslint-plugin-import": "^2.18.2",
     "in-publish": "^2.0.0",
     "safe-publish-latest": "^1.1.2",
     "tape": "^4.11.0"
   },
   "peerDependencies": {
-    "eslint": "^4.19.1 || ^5.3.0",
+    "eslint": "^5.16.0 || ^6.1.0",
     "eslint-plugin-import": "^2.18.2"
   },
   "engines": {
-    "node": ">= 4"
+    "node": ">= 6"
   },
   "dependencies": {
     "confusing-browser-globals": "^1.0.7",

packages/eslint-config-airbnb-base/whitespace.js

@@ -7,7 +7,7 @@ const baseConfig = require('.');
 function onlyErrorOnRules(rulesToError, config) {
   const errorsOnly = assign({}, config);
   const cli = new CLIEngine({ baseConfig: config, useEslintrc: false });
-  const baseRules = cli.getConfigForFile('./').rules;
+  const baseRules = cli.getConfigForFile(require.resolve('./')).rules;
 
   entries(baseRules).forEach((rule) => {
     const ruleName = rule[0];

packages/eslint-config-airbnb/package.json

@@ -62,7 +62,7 @@
     "babel-preset-airbnb": "^2.6.0",
     "babel-tape-runner": "^2.0.1",
     "eclint": "^2.8.1",
-    "eslint": "^4.19.1 || ^5.3.0",
+    "eslint": "^5.16.0 || ^6.1.0",
     "eslint-find-rules": "^3.4.0",
     "eslint-plugin-import": "^2.18.2",
     "eslint-plugin-jsx-a11y": "^6.2.3",
@@ -73,12 +73,12 @@
     "tape": "^4.11.0"
   },
   "peerDependencies": {
-    "eslint": "^4.19.1 || ^5.3.0",
+    "eslint": "^5.16.0 || ^6.1.0",
     "eslint-plugin-import": "^2.18.2",
     "eslint-plugin-jsx-a11y": "^6.2.3",
     "eslint-plugin-react": "^7.14.2"
   },
   "engines": {
-    "node": ">= 4"
+    "node": ">= 6"
   }
 }

packages/eslint-config-airbnb/whitespace.js

@@ -7,7 +7,7 @@ const baseConfig = require('.');
 function onlyErrorOnRules(rulesToError, config) {
   const errorsOnly = assign({}, config);
   const cli = new CLIEngine({ baseConfig: config, useEslintrc: false });
-  const baseRules = cli.getConfigForFile('./').rules;
+  const baseRules = cli.getConfigForFile(require.resolve('./')).rules;
 
   entries(baseRules).forEach((rule) => {
     const ruleName = rule[0];