[PATCH 2/2] Don't require config file for "stg mail"

[Pavel Roskin <proski@gnu.org>]

When calculating the string to be used in the From: field, don't require
it to come from the configuration file.  Instead, reuse already known
authname and authemail values as the default.  They can be taken from
the GIT_AUTHOR_NAME and GIT_AUTHOR_EMAIL environment variables.

Signed-off-by: Pavel Roskin <proski@gnu.org>
---

 stgit/commands/mail.py |   15 +++++----------
 1 files changed, 5 insertions(+), 10 deletions(-)

diff --git a/stgit/commands/mail.py b/stgit/commands/mail.py
index 176d7a2..70b091f 100644
--- a/stgit/commands/mail.py
+++ b/stgit/commands/mail.py
@@ -122,18 +122,13 @@ options = [make_option('-a', '--all',
                        action = 'store_true')]
 
 
-def __get_sender():
-    """Return the 'authname <authemail>' string as read from the
-    configuration file
+def __get_sender(authname, authemail):
+    """Return the string to be used in the From: field
     """
     if config.has_option('stgit', 'sender'):
         return config.get('stgit', 'sender')
-    elif config.has_option('stgit', 'authname') \
-             and config.has_option('stgit', 'authemail'):
-        return '%s <%s>' % (config.get('stgit', 'authname'),
-                            config.get('stgit', 'authemail'))
     else:
-        raise CmdException, 'unknown sender details'
+        return '%s <%s>' % (authname, authemail)
 
 def __parse_addresses(addresses):
     """Return a two elements tuple: (from, [to])
@@ -298,7 +293,7 @@ def __edit_message(msg):
 def __build_cover(tmpl, total_nr, msg_id, options):
     """Build the cover message (series description) to be sent via SMTP
     """
-    sender = __get_sender()
+    sender = __get_sender(authname, authemail)
 
     if options.version:
         version_str = ' %s' % options.version
@@ -372,7 +367,7 @@ def __build_message(tmpl, patch, patch_nr, total_nr, msg_id, ref_id, options):
     commname = p.get_commname();
     commemail = p.get_commemail();
 
-    sender = __get_sender()
+    sender = __get_sender(authname, authemail)
 
     fromauth = '%s <%s>' % (authname, authemail)
     if fromauth != sender: