Merge pull request #590 from feross/legacy

Improve standard v8 behavior on legacy versions of Node

bin/cmd.js

@@ -1,4 +1,9 @@
 #!/usr/bin/env node
 
-var opts = require('../options')
-require('standard-engine').cli(opts)
+if (process.version.match(/v(\d+)\./)[1] < 4) {
+  console.error('standard: Node v4 or greater is required. `standard` did not run.')
+} else {
+  var opts = require('../options')
+  require('standard-engine').cli(opts)
+}
+

package.json

@@ -29,6 +29,9 @@
     "standard-packages": "^3.1.9",
     "tape": "^4.6.0"
   },
+  "engines": {
+    "node": ">=4"
+  },
   "homepage": "http://standardjs.com",
   "keywords": [
     "JavaScript Standard Style",
@@ -62,11 +65,11 @@
     "url": "git://github.com/feross/standard.git"
   },
   "scripts": {
-    "update-authors": "./bin/update-authors.sh",
     "test": "./bin/cmd.js --verbose && tape test/*.js",
     "test-disabled": "npm test -- --disabled",
     "test-offline": "npm test -- --offline",
     "test-offline-quick": "npm test -- --offline --quick",
-    "test-quick": "npm test -- --quick"
+    "test-quick": "npm test -- --quick",
+    "update-authors": "./bin/update-authors.sh"
   }
 }