Improved commit author notification

app/mailers/notify.rb

@@ -27,8 +27,7 @@ class Notify < ActionMailer::Base
     @user = user
     @note = note
     @project = note.project
-    @commit = @project.repo.commits(note.noteable_id).first
-    return unless ( note.notify or ( note.notify_author and @commit.author.email == @user.email ) )
+    @commit = @note.target
     mail(:to => @user.email, :subject => "gitlab | note for commit | #{@note.project.name} ")
   end
   

app/models/mailer_observer.rb

@@ -27,7 +27,8 @@ class MailerObserver < ActiveRecord::Observer
   end
 
   def new_note(note)
-    return unless note.notify or note.notify_author
+    # Notify whole team except author of note
+    if note.notify
       note.project.users.reject { |u| u.id == current_user.id } .each do |u|
         case note.noteable_type
         when "Commit" then
@@ -42,6 +43,10 @@ class MailerObserver < ActiveRecord::Observer
           Notify.note_wall_email(u, note).deliver
         end
       end
+    # Notify only author of resource
+    elsif note.notify_author
+      Notify.note_commit_email(note.commit_author, note).deliver
+    end
   end
 
   def new_merge_request(merge_request)

app/models/note.rb

@@ -57,6 +57,36 @@ class Note < ActiveRecord::Base
   rescue 
     nil
   end
+
+  # Check if we can notify commit author
+  # with email about our comment
+  #
+  # If commit author email exist in project 
+  # and commit author is not passed user we can 
+  # send email to him
+  #
+  # params:
+  #   user - current user
+  # 
+  # return:
+  #   Boolean
+  #
+  def notify_only_author?(user)
+    commit? && commit_author &&
+      commit_author.email != user.email
+  end
+
+  def commit?
+    noteable_type == "Commit"
+  end
+
+  def commit_author
+    @commit_author ||= 
+      project.users.find_by_email(target.author_email) || 
+      project.users.find_by_name(target.author_name)
+  rescue 
+    nil
+  end
 end
 # == Schema Information
 #

app/views/notes/_form.html.haml

@@ -17,7 +17,7 @@
           = check_box_tag :notify, 1, @note.noteable_type != "Commit"
           %span Project team
 
-        -if @note.noteable_type == "Commit"
+        - if @note.notify_only_author?(current_user)
           = label_tag :notify_author do 
             = check_box_tag :notify_author, 1 , @note.noteable_type == "Commit"
             %span Commit author