Delete Phenomic and update dependencies (#74)

* Delete Phenomic and update dependencies

The migration to Docusaurus has worked (see #67), so this deletes Phenomic code as the old engine.

- Delete unused directories and files.
- Update dependencies.
- Use Node 12 (latest) in Travis CI.

* Set Node version via `.nvmrc`

Travis CI and Netlify recognize a `.nvmrc` file to detect needed Node version.

* Update README for new npm-run scripts

* Use Node v10 LTS instead of v12

* Arrange npm scripts

* Fix warning of `eslint-plugin-react`

> Warning: React version not specified in eslint-plugin-react settings. See https://github.com/yannickcr/eslint-plugin-react#configuration .

* Set `NODE_ENV=production` to prevent PostCSS warning

> Without `from` option PostCSS could generate wrong source map and will not find Browserslist config. Set it to CSS file path or to `undefined` to prevent this warning.

.npmrc

@@ -1 +1,2 @@
 package-lock=false
+engine-strict=true

.nvmrc

@@ -0,0 +1 @@
+10

.travis.yml

@@ -1,7 +1,3 @@
-sudo: false
-
 language: node_js
-node_js:
-  - 8
 script:
-  - npm run lint
+  - npm test

README.md

@@ -21,7 +21,7 @@ Or to update the website to the latest version of stylelint:
 
 ```shell
 npm install --save-dev stylelint@latest
-npm run deploy
+npm run build
 ```
 
 ... then commit and push your dependency change.

package.json

@@ -5,91 +5,40 @@
   "homepage": "https://stylelint.io",
   "license": "MIT",
   "repository": "https://github.com/stylelint/stylelint.io.git",
-  "twitter": "stylelint",
-  "googleAnalyticsUA": "UA-72480048-1",
+  "engines": {
+    "node": ">=10"
+  },
   "scripts": {
-    "precommit": "lint-staged",
+    "postinstall": "cd website && npm install",
     "lint:js": "eslint . --ignore-path .gitignore",
-    "lint:css": "stylelint \"src/**/*.css\"",
+    "lint:css": "stylelint --ignore-path .gitignore \"**/*.css\"",
     "lint": "npm-run-all --parallel lint:*",
     "prettier:check": "prettier '**/*.js' --list-different",
     "prettier:fix": "prettier '**/*.js' --write",
     "pretest": "npm run lint",
-    "test": "jest && npm run build",
-    "precopy": "rimraf content dist",
-    "copy": "node ./scripts/copy-stylelint-docs",
-    "prestart": "npm run copy",
-    "start": "phenomic start",
-    "prebuild": "npm run copy",
-    "build": "phenomic build",
-    "predeploy": "npm run build",
-    "deploy": "gh-pages -t -d dist -r git@github.com:stylelint/stylelint.github.io.git -b master",
-    "watch": "jest --watch",
+    "test": "npm run build",
     "pregendoc": "rimraf docs",
-    "gendoc": "node ./scripts/generate-stylelint-docs docs"
-  },
-  "phenomic": {
-    "assets": false,
-    "CNAME": true,
-    "nojekyll": true
-  },
-  "babel": {
-    "env": {
-      "test": {
-        "presets": [
-          "babel-preset-env",
-          "babel-preset-stage-2",
-          "babel-preset-react"
-        ]
-      },
-      "development": {
-        "presets": [
-          "babel-preset-env",
-          "babel-preset-stage-2",
-          "babel-preset-react"
-        ],
-        "plugins": [
-          "babel-plugin-transform-react-jsx-source",
-          "babel-plugin-transform-react-jsx-self",
-          "react-hot-loader/babel"
-        ]
-      },
-      "production": {
-        "presets": [
-          "babel-preset-react-optimize",
-          "babel-preset-env",
-          "babel-preset-stage-2",
-          "babel-preset-react"
-        ]
-      },
-      "webpack-development": {
-        "presets": [
-          "babel-preset-env",
-          "babel-preset-stage-2",
-          "babel-preset-react"
-        ],
-        "plugins": [
-          "babel-plugin-transform-react-jsx-source",
-          "babel-plugin-transform-react-jsx-self",
-          "react-hot-loader/babel"
-        ]
-      },
-      "webpack-production": {
-        "presets": [
-          "babel-preset-react-optimize",
-          "babel-preset-env",
-          "babel-preset-stage-2",
-          "babel-preset-react"
-        ]
-      }
-    }
+    "gendoc": "node ./scripts/generate-stylelint-docs docs",
+    "build": "npm run gendoc && cd website && NODE_ENV=production npm run build",
+    "start": "npm run gendoc && cd website && npm start"
   },
   "eslintConfig": {
     "root": true,
-    "extends": "./node_modules/phenomic/lib/eslint-config-recommended/index.js",
+    "extends": [
+      "eslint:recommended",
+      "plugin:react/recommended"
+    ],
+    "settings": {
+      "react": {
+        "version": "16.8"
+      }
+    },
+    "parserOptions": {
+      "ecmaVersion": "2019"
+    },
     "env": {
-      "node": true,
-      "jest": true
+      "browser": true,
+      "node": true
     }
   },
   "stylelint": {
@@ -126,72 +75,31 @@
       "string-quotes": "double"
     }
   },
+  "husky": {
+    "hooks": {
+      "pre-commit": "lint-staged"
+    }
+  },
   "lint-staged": {
     "*.js": [
       "prettier --write",
       "git add"
     ]
   },
-  "jest": {
-    "preset": "jest-preset-stylelint"
-  },
   "devDependencies": {
-    "babel-cli": "^6.14.0",
-    "babel-core": "^6.14.0",
-    "babel-eslint": "^8.1.2",
-    "babel-loader": "^7.0.0-beta.1",
-    "babel-plugin-transform-react-jsx-self": "^6.11.0",
-    "babel-plugin-transform-react-jsx-source": "^6.9.0",
-    "babel-preset-env": "^1.3.2",
-    "babel-preset-react": "^6.23.0",
-    "babel-preset-react-optimize": "^1.0.1",
-    "babel-preset-stage-2": "^6.22.0",
-    "classnames": "^2.2.5",
-    "css-loader": "^0.28.0",
-    "eslint": "^4.14.0",
-    "eslint-loader": "^1.6.1",
-    "eslint-plugin-react": "^7.5.1",
-    "extract-text-webpack-plugin": "^2.1.0",
-    "file-loader": "^1.1.6",
-    "fs-extra": "^5.0.0",
-    "gh-pages": "^1.1.0",
+    "eslint": "^6.0.1",
+    "eslint-plugin-react": "^7.14.2",
     "glob": "^7.1.4",
-    "history": "^2.0.0",
-    "husky": "^0.14.3",
-    "jest": "^22.0.4",
-    "jest-preset-stylelint": "^1.3.0",
-    "lint-staged": "^6.0.0",
-    "mdast-util-to-string": "^1.0.2",
+    "husky": "^3.0.0",
+    "lint-staged": "^9.2.0",
     "npm-run-all": "^4.1.5",
-    "phenomic": "^0.21.0",
-    "postcss-browser-reporter": "^0.5.0",
-    "postcss-cssnext": "^3.0.2",
-    "postcss-loader": "^2.0.9",
-    "postcss-reporter": "^5.0.0",
-    "prettier": "~1.9.2",
-    "prop-types": "^15.6.0",
-    "raw-loader": "^0.5.1",
-    "react": "^15.4.1",
-    "react-dom": "^15.4.1",
-    "react-google-analytics": "^0.2.0",
-    "react-helmet": "^3.2.2",
-    "react-hot-loader": "^3.0.0-beta.6",
-    "react-redux": "^4.4.6",
-    "react-router": "^2.3.0",
-    "react-svg-inline": "^2.0.1",
-    "react-topbar-progress-indicator": "^2.0.0",
-    "redux": "^3.6.0",
+    "prettier": "^1.18.2",
     "remark": "^10.0.1",
     "remark-inline-links": "^3.1.3",
-    "remark-toc": "^3.1.0",
-    "rimraf": "^2.5.4",
-    "style-loader": "^0.19.1",
+    "rimraf": "^2.6.3",
     "stylelint": "^10.1.0",
     "stylelint-config-standard": "^18.3.0",
     "stylelint-order": "^2.2.1",
-    "unist-util-visit": "^1.1.1",
-    "warning": "^3.0.0",
-    "webpack": "^2.3.3",
-    "whatwg-fetch": "^2.0.1"
+    "unist-util-visit": "^1.1.1"
   }
 }