From 0b506befd616219621a968e2a51bab9b254299d8 Mon Sep 17 00:00:00 2001
From: Daniel Narvaez <dwnarvaez@gmail.com>
Date: Wed, 28 Nov 2012 02:07:48 +0000
Subject: Don't hardcode xvfb display

---
(limited to 'devbot')

diff --git a/devbot/xvfb.py b/devbot/xvfb.py
index 6549b9d..b650bf1 100644
--- a/devbot/xvfb.py
+++ b/devbot/xvfb.py
@@ -3,9 +3,15 @@ import subprocess
 
 from devbot import utils
 
-xvfb_display = ":100"
+_display_provider = None
+
+def set_display_provider(provider):
+    global _display_provider
+    _display_provider = provider
 
 def start():
+    xvfb_display = _display_provider.find_free_display()
+
     xvfb_proc = subprocess.Popen(args=["Xvfb", xvfb_display],
                                  stdout=utils.devnull,
                                  stderr=subprocess.STDOUT)
@@ -16,7 +22,7 @@ def start():
 
 def stop(xvfb_proc, orig_display):
     if orig_display:
-        os.environ["DISPLAY"] = xvfb_display
+        os.environ["DISPLAY"] = orig_display
     else:
         del os.environ["DISPLAY"]
 
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