Ported CLI from commander to yargs because yargs suits our large CLI better and is easier to develop with. Split commands into separate files since the file was getting annoyingly long.

lib/cli/migrate/index.js

@@ -0,0 +1,22 @@
+module.exports.command = 'migrate'
+
+module.exports.describe = 'Migrates the database to the latest version.'
+
+module.exports.builder = function(yargs) {
+  return yargs
+}
+
+module.exports.handler = function() {
+  var logger = require('../../util/logger')
+  var log = logger.createLogger('cli:migrate')
+  var db = require('../../db')
+
+  return db.setup()
+    .then(function() {
+      process.exit(0)
+    })
+    .catch(function(err) {
+      log.fatal('Migration had an error:', err.stack)
+      process.exit(1)
+    })
+}