[core] Add global prettier config (mui#8624)

.eslintrc.js

@@ -111,13 +111,6 @@ module.exports = {
     'flowtype/type-id-match': 'off',
     'flowtype/use-flow-type': 'error',
 
-    'prettier/prettier': [
-      'error',
-      {
-        singleQuote: true,
-        printWidth: 100,
-        trailingComma: 'all',
-      },
-    ],
+    'prettier/prettier': ['error'],
   },
 };

package.json

@@ -35,7 +35,7 @@
     "build:umd:dev": "webpack --config scripts/umd.webpack.config.js",
     "build:umd:prod": "cross-env NODE_ENV=production webpack --config scripts/umd.webpack.config.js",
     "build": "yarn build:es2015 && yarn build:es2015modules && yarn build:copy-files && yarn build:umd:dev && yarn build:umd:prod",
-    "prettier": "find . -name \"*.js\" | grep -v -f .eslintignore | xargs prettier --write --single-quote --trailing-comma all --print-width 100",
+    "prettier": "find . -name \"*.js\" | grep -v -f .eslintignore | xargs prettier --write",
     "lint": "eslint . --cache && echo \"eslint: no lint errors\"",
     "size": "size-limit",
     "size:why": "size-limit --why build/index.js",

prettier.config.js

@@ -0,0 +1,11 @@
+// @flow
+
+module.exports = {
+  printWidth: 100,
+  singleQuote: true,
+  trailingComma: 'all',
+  bracketSpacing: true,
+  jsxBracketSameLine: false,
+  parser: 'babylon',
+  semi: true,
+};