[PATCHv5 3/3] gitweb: gravatar url cache

[Giuseppe Bilotta <giuseppe.bilotta@xxxxxxxxx>]

Views which contain many occurrences of the same email address (e.g.
shortlog view) benefit from not having to recalculate the MD5 of the
email address every time.
---
 gitweb/gitweb.perl |   14 ++++++++++++--
 1 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index 6e807fe..10ca0fe 100755
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -3249,6 +3249,17 @@ sub git_print_header_div {
 	      "\n</div>\n";
 }
 
+our %gravatar_url_cache = ();
+
+sub gravatar_url {
+	my $email = lc shift;
+	my $size = shift;
+	$gravatar_url_cache{$email} ||=
+		"http://www.gravatar.com/avatar.php?gravatar_id="; .
+			Digest::MD5::md5_hex($email) . "&amp;size=";
+	return $gravatar_url_cache{$email} . $size;
+}
+
 # Insert an avatar for the given $email at the given $size if the feature
 # is enabled.
 sub git_get_avatar {
@@ -3258,8 +3269,7 @@ sub git_get_avatar {
 	my $size = $avatar_size{$params{'size'}} || $avatar_size{'default'};
 	my $url = "";
 	if ($git_gravatar_enabled) {
-		$url = "http://www.gravatar.com/avatar.php?gravatar_id="; .
-			Digest::MD5::md5_hex(lc $email) . "&amp;size=$size";
+		$url = gravatar_url($email, $size);
 	}
 	# Currently only gravatars are supported, but other forms such as
 	# picons can be added by putting an else up here and defining $url
-- 
1.6.3.rc1.192.gdbfcb

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