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.
Signed-off-by: Giuseppe Bilotta <giuseppe.bilotta@xxxxxxxxx>
---
gitweb/gitweb.perl | 24 ++++++++++++++++++++++--
1 files changed, 22 insertions(+), 2 deletions(-)
diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index 92695a3..4d7e4ff 100755
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -1512,6 +1512,27 @@ sub format_subject_html {
}
}
+# Rather than recomputing the url for an email multiple times, we cache it
+# after the first hit. This gives a visible benefit in views where the avatar
+# for the same email is used repeatedly (e.g. shortlog).
+# The cache is shared by all avatar engines (currently gravatar only), which
+# are free to use it as preferred. Since only one avatar engine is used for any
+# given page, there's no risk for cache conflicts.
+our %avatar_cache = ();
+
+# Compute the gravatar url for a given email, if it's not in the cache already.
+# Gravatar stores only the part of the URL before the size, since that's the
+# one computationally more expensive. This also allows reuse of the cache for
+# different sizes (for this particular engine).
+sub gravatar_url {
+ my $email = lc shift;
+ my $size = shift;
+ $avatar_cache{$email} ||=
+ "http://www.gravatar.com/avatar/"; .
+ Digest::MD5::md5_hex($email) . "?s=";
+ return $avatar_cache{$email} . $size;
+}
+
# Insert an avatar for the given $email at the given $size if the feature
# is enabled.
sub git_get_avatar {
@@ -1522,8 +1543,7 @@ sub git_get_avatar {
my $size = $avatar_size{$opts{-size}} || $avatar_size{'default'};
my $url = "";
if ($git_avatar eq 'gravatar') {
- $url = "http://www.gravatar.com/avatar/"; .
- Digest::MD5::md5_hex(lc $email) . "?s=$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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