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 1807f69f2af2421ea69f707044471dc3a986e0b3..14b4c81a36f24ec6b56b215be2e3125102ba34af 100644 (file)
--- a/stgit/git.py
+++ b/stgit/git.py
@@ -275,8 +275,9 @@ def local_changes(verbose = True):
 
 def get_heads():
     heads = []
 
 def get_heads():
     heads = []

+    hr = re.compile(r'^[0-9a-f]{40} refs/heads/(.+)$')

     for line in _output_lines(['git-show-ref', '--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
 
         heads.append(m.group(1))
     return heads