[packagedb-cli] Use fedora_cert to retrieve fas username if not provided

[Pierre-YvesChibon]

commit 8975bfd5c8007120195093e429f4710cc11f183f
Author: pingou <pingou(a)pingoured.fr&gt;
Date:   Wed Jul 13 07:55:28 2011 +0200

    Use fedora_cert to retrieve fas username if not provided

 pkgdb-cli.py |    9 ++++++++-
 1 files changed, 8 insertions(+), 1 deletions(-)
---
diff --git a/pkgdb-cli.py b/pkgdb-cli.py
index 59fba71..a5424ea 100755
--- a/pkgdb-cli.py
+++ b/pkgdb-cli.py
@@ -23,6 +23,7 @@ import getpass
 import koji
 import sys
 import re
+import fedora_cert
 
 version = '0.0.1'
 kojiclient = koji.ClientSession('http://koji.fedoraproject.org/kojihub';,
@@ -68,6 +69,8 @@ class PackageIDError(Exception):
 
 def _get_client_authentified(username=None, password=None):
     """ Returned a BaseClient with authentification
+    
+    If the username is None, tries to retrieve it from fedora_cert.
 
     :arg pkgdbclient a PackageDB object to which username and password
     are added
@@ -76,7 +79,11 @@ def _get_client_authentified(username=None, password=None):
     """
     if pkgdbclient.password is None:
         if username is None:
-            username = raw_input('FAS username: ')
+            try:
+                username = fedora_cert.read_user_cert()
+            except:
+                log.debug('Could not read Fedora cert, using login name')
+                username = raw_input('FAS username: ')
         if password is None:
             password = getpass.getpass()
         pkgdbclient.username = username