fixed setup.py to build not in a git repo

Author: ChrisBarker-NOAA

setup.py

@@ -3,6 +3,7 @@
 import sys
 import fnmatch
 import shutil
+from datetime import datetime
 
 from setuptools import setup, find_packages
 from distutils.command.clean import clean
@@ -12,20 +13,28 @@
 from setuptools.command.test import test as TestCommand
 
 from git import Repo
+from git.exc import InvalidGitRepositoryError
 
 here = os.path.abspath(os.path.dirname(__file__))
 README = open(os.path.join(here, 'README.md')).read()
 pkg_name = 'oil_library'
-pkg_version = '1.1.0'
+pkg_version = '1.1.1'
 
-repo = Repo('.')
 
+# try to get update date from repo
 try:
-    branch_name = repo.active_branch.name
-except TypeError:
+    repo = Repo('.')
+    try:
+        branch_name = repo.active_branch.name
+    except TypeError:
+        branch_name = 'no-branch'
+    last_update = repo.iter_commits().next().committed_datetime.isoformat()
+except InvalidGitRepositoryError:
+    # not builiding in a valid git repo
+    # use today's date.
+    print "not in a valid git repo -- using today's date as build date"
     branch_name = 'no-branch'
-
-last_update = repo.iter_commits().next().committed_datetime.isoformat(),
+    last_update = datetime.now().isoformat()
 
 
 def clean_files(del_db=False):