diff --git a/centos.git.repolist.py b/centos.git.repolist.py
index 908530d..75122ae 100755
--- a/centos.git.repolist.py
+++ b/centos.git.repolist.py
@@ -1,4 +1,11 @@
 #!/usr/bin/env python
+#
+#  License: GPLv3
+#
+#  Initial Author: Bonnie King <bonniek@fnal.gov>
+#         Updates:
+#                  Pat Riehecky <riehecky@fnal.gov>
+#
 '''Get list of repos from gitblit RPC, to grab CentOS sources'''
 
 import optparse
@@ -22,36 +29,45 @@ def read_args():
                       help='''project path (default 'rpms', could be 'all', 'core-sig'...)''',
                       default='rpms')
 
+    parser.add_option('-b', '--branch', metavar="<branch name>",
+                      help='Only list repos with this branch (default master)',
+                      default = 'master')
+
     parser.add_option('-u', '--url', metavar="<URL>",
                       help='URL to check (default %s)' % (RPCURL),
-                      default = RPCURL
-                      )
+                      default = RPCURL)
 
     (options, args) = parser.parse_args()
     return options
 
-def get_repo_list(url, projectpath):
+def get_repo_list(url, branch, projectpath):
     '''return a list of repo URLs'''
     try:
         req = requests.get(url)
-    except requests.exceptions.RequestException as e:
-        print e
+    except requests.exceptions.RequestException as err_msg:
+        print err_msg
         sys.exit(1)
 
     payload = req.text
     repos = json.loads(payload)
+    branchname = 'refs/heads/' + branch
 
-    if projectpath != 'all':
-        for repo in repos.keys():
+    for repo in repos.keys():
+        if projectpath != 'all':
             if repos[repo]['projectPath'] != projectpath:
                 del repos[repo]
+                continue
+        if branchname not in repos[repo]['availableRefs']:
+            del repos[repo]
 
     return repos.keys()
 
 def main():
+    '''Broken out so it can be inherited if someone wants'''
     options = read_args()
-    repos = get_repo_list(url=options.url, projectpath=options.project)
-    print '\n'.join(repos)
+    repos = get_repo_list(url=options.url, branch=options.branch, projectpath=options.project)
+    if repos:
+        print '\n'.join(repos)
     
 if __name__ == "__main__":
     main()