fix travis error

vinaypuppal · vinaypuppal · commit 3af59eb48861 · 2017-10-19T02:05:28.000+05:30
diff --git a/.travis.yml b/.travis.yml
@@ -2,7 +2,7 @@ sudo: required
 dist: trusty
 language: node_js
 node_js:
-  - '7.7'
+  - '8.6'
 before_install:
   - 'curl -o- -L https://yarnpkg.com/install.sh | bash -s -- --version 0.27.5'
   - 'export PATH="$HOME/.yarn/bin:$PATH"'
diff --git a/package.json b/package.json
@@ -5,34 +5,26 @@
   "main": "index.js",
   "scripts": {
     "test": "xo",
-    "lint": "prettier 'utils/**/*.js' 'components/**/*.js' 'pages/**/*.js' 'lib/**/*.js' 'hocs/**/*.js' '*.js' --write --single-quote --print-width='80' --trailing-comma='all' && xo --fix",
+    "lint":
+      "prettier 'utils/**/*.js' 'components/**/*.js' 'pages/**/*.js' 'lib/**/*.js' 'hocs/**/*.js' '*.js' --write --single-quote --print-width='80' --trailing-comma='all' && xo --fix",
     "precommit": "lint-staged",
     "analyze": "cross-env ANALYZE=1 next build",
     "dev": "cross-env NODE_ENV=development next",
     "start": "cross-env NODE_ENV=production next start",
     "build": "next build",
-    "export": "yarn build && next export"
+    "export": "cross-env NODE_ENV=production yarn build && next export"
   },
   "xo": {
     "parser": "babel-eslint",
-    "extends": [
-      "prettier",
-      "prettier/react",
-      "plugin:react/recommended"
-    ],
-    "env": [
-      "browser",
-      "node"
-    ],
+    "extends": ["prettier", "prettier/react", "plugin:react/recommended"],
+    "env": ["browser", "node"],
     "rules": {
       "linebreak-style": 0,
       "react/display-name": 0,
       "react/prop-types": 0
     },
     "space:": 2,
-    "ignores": [
-      "next.config.js"
-    ]
+    "ignores": ["next.config.js"]
   },
   "lint-staged": {
     "*.js": [
