Ensure that we can get a commit number from git

Currently, git describe fails with "fatal: No names found, cannot describe anything."
bingo · Nov 15, 2013 · 2d7514f · 2d7514f
1 parent c70882a
commit 2d7514f
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/setup.py b/setup.py
@@ -201,12 +201,12 @@ def build_extensions(self):
     try:
         import subprocess
         try:
-            pipe = subprocess.Popen(["git", "describe", "HEAD"],
+            pipe = subprocess.Popen(["git", "describe", "--always"],
                                     stdout=subprocess.PIPE).stdout
         except OSError:
             # msysgit compatibility
             pipe = subprocess.Popen(
-                ["git.cmd", "describe", "HEAD"],
+                ["git.cmd", "describe", "--always"],
                 stdout=subprocess.PIPE).stdout
         rev = pipe.read().strip()
         # makes distutils blow up on Python 2.7