Added repos_folder to buildtask (faster, don't rebuild unchanged images)

stackbrew/app.py

@@ -53,7 +53,7 @@ def build_task():
     summary = brew.build_library(
         'https://github.com/shin-/brew.git', namespace='stackbrew',
         debug=config['debug'], push=config['push'], prefill=False,
-        logger=app.logger
+        repos_folder=config['repos_folder'], logger=app.logger
     )
     data.insert_summary(summary)
 

stackbrew/config.json

@@ -1,5 +1,6 @@
 {
     "debug": true,
     "push": false,
-    "build_interval": 6000
+    "build_interval": 6000,
+    "repos_folder": "/opt/stackbrew/repos"
 }