Add CLI.

packages/xo-lib/cli.js

@@ -0,0 +1,46 @@
+#!/usr/bin/env node
+
+'use strict'
+
+// ===================================================================
+
+var Bluebird = require('bluebird')
+var createRepl = require('repl').start
+var eventToPromise = require('event-to-promise')
+var pw = require('pw')
+
+var Xo = require('./').Xo
+
+// ===================================================================
+
+var usage = ''
+
+function main (args) {
+  if (args[0] === '--help' || args[0] === 'h') {
+    return usage
+  }
+
+  var xo = new Xo(args[0])
+
+  return new Bluebird(function (resolve) {
+    process.stdout.write('Password: ')
+    pw(resolve)
+  }).then(function (password) {
+    return xo.signIn({
+      email: args[1],
+      password: password
+    })
+  }).then(function () {
+    var repl = createRepl({})
+    repl.context.xo = xo
+
+    return eventToPromise(repl, 'exit')
+  })
+}
+module.exports = main
+
+// ===================================================================
+
+if (!module.parent) {
+  require('exec-promise')(main)
+}