Add support to CLI for multiple locks

cli.js

@@ -6,7 +6,14 @@ var augustctl = require('./index');
 
 var config = require(process.env.AUGUSTCTL_CONFIG || './config.json');
 
-var op = process.argv[2];
+var whichLock = process.argv[2];
+if ( config.hasOwnProperty(whichLock) ) {
+  config = config[whichLock];
+} else {
+  throw new Error('invalid lock specified:' + whichLock);
+}
+
+var op = process.argv[3];
 if (typeof augustctl.Lock.prototype[op] !== 'function') {
   throw new Error('invalid operation: ' + op);
 }

config.json

+{
+  "front": {
+    "lockUuid": "abcdef012345",
+    "offlineKey": "ABCDEF0123456789ABCDEF0123456789",
+    "offlineKeyOffset": 1
+  },
+  "rear": {
+    "lockUuid": "abcdef456789",
+    "offlineKey": "ABCDEF0123456789ABCDEF0123456789",
+    "offlineKeyOffset": 1
+  }
+}

lib/scan.js

@@ -13,7 +13,7 @@ function scan(uuid) {
 
     noble.on('stateChange', function(state) {
       if (state === 'poweredOn') {
-        noble.startScanning([ Lock.BLE_COMMAND_SERVICE ]);
+        noble.startScanning([ Lock.BLE_COMMAND_SERVICE ], true);
       } else {
         noble.stopScanning();
       }
@@ -23,7 +23,6 @@ function scan(uuid) {
   return new Promise(function(resolve) {
     noble.on('discover', function(peripheral) {
       if (uuid === undefined || peripheral.uuid === uuid) {
-        noble.stopScanning();
         resolve(peripheral);
       }
     });