🐛 ensure ghost update starts the new version in the same environmen…

…t as the old version

lib/commands/update.js

@@ -23,7 +23,7 @@ module.exports = BaseCommand.extend({
             findVersion = require('../utils/version'),
             config      = Config.load('.ghost-cli'),
             self        = this,
-            installPath;
+            installPath, environment;
 
         if (options.rollback) {
             if (!config.get('previous-version')) {
@@ -34,6 +34,8 @@ module.exports = BaseCommand.extend({
             installPath = path.join(process.cwd(), 'versions', version);
         }
 
+        environment = config.get('running', null);
+
         return this.runCommand('doctor', 'update').then(function resolveVersion() {
             if (options.rollback) {
                 return Promise.resolve();
@@ -51,6 +53,12 @@ module.exports = BaseCommand.extend({
                     }, 'Downloading the updated version of Ghost');
                 });
         }).then(function stopCurrentGhost() {
+            if (!environment) {
+                // If environment isn't set ghost is not running.
+                // Therefore we don't need to stop Ghost, so skip that part
+                return Promise.resolve();
+            }
+
             return self.runCommand('stop');
         }).then(function afterStop() {
             var fs = require('fs-extra'),
@@ -65,7 +73,10 @@ module.exports = BaseCommand.extend({
                 (options.rollback) ? null : config.get('active-version')
             ).set('active-version', version).save();
 
-            return self.runCommand('start');
+            var startConfig = [];
+            startConfig[environment] = true;
+
+            return self.runCommand('start', startConfig);
         });
     }
 });