Run prune in git cache update bootstrap to remove loose objects

git_cache.py

Index: git_cache.py
diff --git a/git_cache.py b/git_cache.py
index 5d1af238ede978de79aeef8a8df52999a46e9e05..85d6c97e90d3e8c629930e250c4370be594b638f 100755
--- a/git_cache.py
+++ b/git_cache.py
@@ -425,6 +425,7 @@ class Mirror(object):
     gen_number = subprocess.check_output(
         [self.git_exe, 'number', 'master'], cwd=self.mirror_path).strip()
     self.RunGit(['gc'])  # Run Garbage Collect to compress packfile.
+    self.RunGit(['prune'])  # Run prune to remove loose objects.

[szager1, 2014/09/05 16:49:36]

Why not just:

self.RunGit(['gc', '--prune=all'])

[Ryan Tseng, 2014/09/05 16:53:53]

Didn't know I could do that.
Done

     # Creating a temp file and then deleting it ensures we can use this name.
     _, tmp_zipfile = tempfile.mkstemp(suffix='.zip')
     os.remove(tmp_zipfile)