Included husky and lint-staged for pre-commit hook

package.json

@@ -49,10 +49,13 @@
     "grunt-shell": "~2.1.0",
     "grunt-stylelint": "~0.10.0",
     "grunt-wp-i18n": "~1.0.1",
+    "husky": "^1.1.4",
     "istanbul": "^1.0.0-alpha",
+    "lint-staged": "^8.0.5",
     "mocha": "^5.2.0",
     "prettier": "github:automattic/calypso-prettier#c56b4251",
     "stylelint": "~9.2.1",
+    "stylelint-config-wordpress": "^13.1.0",
     "wc-e2e-page-objects": "0.10.0"
   },
   "engines": {
@@ -61,5 +64,30 @@
   },
   "dependencies": {
     "github-contributors-list": "https://github.com/woocommerce/github-contributors-list/tarball/master"
+  },
+  "husky": {
+    "hooks": {
+      "pre-commit": "lint-staged"
+    }
+  },
+  "lint-staged": {
+    "linters": {
+      "*.php": [
+        "php -d display_errors=1 -l",
+        "composer run-script phpcs"
+      ],
+      "*.scss": [
+        "stylelint --syntax=scss --fix",
+        "git add"
+      ],
+      "*.js": [
+        "eslint --fix",
+        "git add"
+      ]
+    },
+    "ignore": [
+      "*.min.js",
+      "*.css"
+    ]
   }
 }