From: Karl Hasselström <kha@treskal.com>
Date: Sat, 25 Aug 2007 18:10:38 +0000 (+0200)
Subject: Compile regexp just once
X-Git-Tag: v0.14~115
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/stgit/commitdiff_plain/216a1524c4acbd9952ffaeec054e30cf14dde5fc

Compile regexp just once

It's a waste of time to recompile the same regexp every time we go
through the loop.

Signed-off-by: Karl Hasselström <kha@treskal.com>
---

diff --git a/stgit/git.py b/stgit/git.py
index 1807f69..14b4c81 100644
--- a/stgit/git.py
+++ b/stgit/git.py
@@ -275,8 +275,9 @@ def local_changes(verbose = True):
 
 def get_heads():
     heads = []
+    hr = re.compile(r'^[0-9a-f]{40} refs/heads/(.+)$')
     for line in _output_lines(['git-show-ref', '--heads']):
-        m = re.match('^[0-9a-f]{40} refs/heads/(.+)$', line)
+        m = hr.match(line)
         heads.append(m.group(1))
     return heads