From a9df6c2a6aca091ce17efe556e1264000cafe6ae Mon Sep 17 00:00:00 2001
From: Zack Cerza <zack@cerza.org>
Date: Thu, 22 Aug 2013 18:02:22 -0500
Subject: [PATCH] Worker shouldn't attempt to rebuild an existing virtualenv

---
 bootstrap           | 12 +++++++-----
 teuthology/queue.py |  6 +++++-
 2 files changed, 12 insertions(+), 6 deletions(-)

diff --git a/bootstrap b/bootstrap
index 695180621706c..d03ad66619e53 100755
--- a/bootstrap
+++ b/bootstrap
@@ -13,12 +13,14 @@ if [ -n "$missing" ]; then
     exit 1
 fi
 
-# site packages needed because libvirt python bindings are not nicely
-# packaged
-virtualenv --system-site-packages --distribute virtualenv
+if [ -z "$NO_CLOBBER" ] || [ ! -e ./virtualenv ]; then
+    # site packages needed because libvirt python bindings are not nicely
+    # packaged
+    virtualenv --system-site-packages --distribute virtualenv
 
-# avoid pip bugs
-./virtualenv/bin/pip install --upgrade pip
+    # avoid pip bugs
+    ./virtualenv/bin/pip install --upgrade pip
+fi
 
 ./virtualenv/bin/pip install -r requirements.txt
 
diff --git a/teuthology/queue.py b/teuthology/queue.py
index cdd52960ca449..1f3606ccf22ff 100644
--- a/teuthology/queue.py
+++ b/teuthology/queue.py
@@ -104,7 +104,11 @@ describe. One job is run at a time.
             subprocess.Popen(('git', 'reset', '--hard', 'origin/%s' %
                               teuthology_branch), cwd=teuth_path)
         log.info("Bootstrapping %s", teuth_path)
-        subprocess.Popen(('./bootstrap'), cwd=teuth_path)
+        # This magic makes the bootstrap script not attempt to clobber an
+        # existing virtualenv.
+        env = os.environ.copy()
+        env['NO_CLOBBER'] = '1'
+        subprocess.Popen(('./bootstrap'), cwd=teuth_path, env)
         teuth_bin_path = os.path.join(teuth_path, 'virtualenv', 'bin')
         if not os.path.isdir(teuth_bin_path):
             raise RuntimeError('Teuthology branch %s not found at %s' %
-- 
2.39.5