From 5f5b611805ed60a303ccbc07ebd9a5bac2dabb92 Mon Sep 17 00:00:00 2001
From: Wincent Colaiuta <win@wincent.com>
Date: Wed, 21 Nov 2007 13:35:05 +0100
Subject: Authenticate only once in git-send-email

When using git-send-email with SMTP authentication sending a patch series
would redundantly authenticate multiple times, once for each patch. In
the worst case, this would actually prevent the series from being sent
because the server would reply with a "5.5.0 Already Authenticated"
status code which would derail the process.

This commit teaches git-send-email to authenticate once and only once at
the beginning of the series.

Signed-off-by: Wincent Colaiuta <win@wincent.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/git-send-email.perl b/git-send-email.perl
index 9c6fa64..76baa8e 100755
--- a/git-send-email.perl
+++ b/git-send-email.perl
@@ -145,6 +145,7 @@ sub format_2822_time {
 
 my $have_email_valid = eval { require Email::Valid; 1 };
 my $smtp;
+my $auth;
 
 sub unique_email_list(@);
 sub cleanup_compose_files();
@@ -635,7 +636,7 @@ X-Mailer: git-send-email $gitversion
 		}
 
 		if ((defined $smtp_authuser) && (defined $smtp_authpass)) {
-			$smtp->auth( $smtp_authuser, $smtp_authpass ) or die $smtp->message;
+			$auth ||= $smtp->auth( $smtp_authuser, $smtp_authpass ) or die $smtp->message;
 		}
 		$smtp->mail( $raw_from ) or die $smtp->message;
 		$smtp->to( @recipients ) or die $smtp->message;
-- 
cgit v0.10.2-6-g49f6