When the email address is empty gitlab will give a 500 error

Since some conversion tools do commits with an empty commiters email address gitlab will fail with a 500 error

When the email address is empty gitlab will give a 500 error
825d2d69 · Wouter D'Haeseleer · 2176e2c9 · 825d2d69
Commit 825d2d69 authored May 03, 2012 by Wouter D'Haeseleer
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application_helper.rb app/helpers/application_helper.rb +1 -0

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--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -3,6 +3,7 @@ module ApplicationHelper

  def gravatar_icon(user_email, size = 40)
    gravatar_host = request.ssl? ? "https://secure.gravatar.com" :  "http://www.gravatar.com"
+    user_email ||= ''
    user_email.strip!
    "#{gravatar_host}/avatar/#{Digest::MD5.hexdigest(user_email.downcase)}?s=#{size}&d=identicon"
  end