building on PR #3 to get a simple multi-builder solution for now

defaults/main.yml

@@ -1,6 +1,7 @@
 # the username that will run the middleman builder
 # # user will be created along a pair of ssh key
 builder_username: middleman_builder
+builder: 'middleman'
 update_submodules: True
 watchers:  []
 irc_server: False

files/build_deploy.py

@@ -49,6 +49,15 @@
 args = parser.parse_args()
 
 
+builder_commands = {
+    'middleman': {
+        'build': ['bundle', 'exec', 'middleman' 'build', '--verbose']
+    }
+    'jekyll': {
+        'build': ['bundle', 'exec', 'jekyll', 'build', '--incremental', '--verbose', '--trace']
+    }
+}
+
 def debug_print(message):
     if args.debug:
         print message
@@ -206,9 +215,9 @@ def notify_error(stage, error):
         notify_error('install', C.output)
 
     try:
-        syslog.syslog("Build of {}: bundle exec middleman build".format(name))
-        result = subprocess.check_output(['bundle', 'exec', 'middleman',
-                                          'build', '--verbose'])
+        command = builder_commands[config['builder']]['build']
+        syslog.syslog("Build of {}: {}".format(name, ' '.join(command)))
+        result = subprocess.check_output(command)
     except subprocess.CalledProcessError, C:
         notify_error('build', C.output)
 

templates/builder.yml

@@ -1,4 +1,5 @@
 name: {{ name }}
+builder: {{ builder }}
 notification:
 {% if irc_server %}
   irc: