Fail fast if node version is too low

bin/micro.js

@@ -7,6 +7,7 @@ const {resolve} = require('path')
 const parse = require('minimist')
 const asyncToGen = require('async-to-gen/register')
 const updateNotifier = require('update-notifier')
+const nodeVersion = require('node-version')
 
 // Ours
 const pkg = require('../package')
@@ -38,6 +39,12 @@ if (args.h) {
   process.exit(0)
 }
 
+// Throw an error if node version is too low
+if (nodeVersion.major < 6) {
+  console.error(`Error! Micro requires at least version 6 of Node. Please upgrade!`)
+  process.exit(1)
+}
+
 if (!file) {
   try {
     const packageJson = require(resolve(process.cwd(), 'package.json'))
@@ -75,6 +82,7 @@ if (!process.env.NOW && pkg.dist) {
   updateNotifier({pkg}).notify()
 }
 
+// Load package core with async/await support
 const serve = require('../')
 
 let mod

package.json

@@ -66,6 +66,7 @@
     "isstream": "0.1.2",
     "media-typer": "0.3.0",
     "minimist": "1.2.0",
+    "node-version": "^1.0.0",
     "raw-body": "2.2.0",
     "update-notifier": "^1.0.3"
   }