Add Commit#author and #committer.

app/helpers/commits_helper.rb

@@ -134,12 +134,13 @@ module CommitsHelper
   #  avatar: true will prepend the avatar image
   #  size:   size of the avatar image in px
   def commit_person_link(commit, options = {})
+    user = commit.send(options[:source])
+    
     source_name = clean(commit.send "#{options[:source]}_name".to_sym)
     source_email = clean(commit.send "#{options[:source]}_email".to_sym)
 
-    user = User.find_for_commit(source_email, source_name)
-    person_name = user.nil? ? source_name : user.name
-    person_email = user.nil? ? source_email : user.email
+    person_name = user.try(:name) || source_name
+    person_email = user.try(:email) || source_email
 
     text =
       if options[:avatar]

app/models/commit.rb

@@ -126,6 +126,14 @@ class Commit
     "commit #{id}"
   end
 
+  def author
+    User.find_for_commit(author_email, author_name)
+  end
+
+  def committer
+    User.find_for_commit(committer_email, committer_name)
+  end
+
   def method_missing(m, *args, &block)
     @raw.send(m, *args, &block)
   end

app/services/git_push_service.rb

@@ -127,6 +127,6 @@ class GitPushService
   end
 
   def commit_user(commit)
-    User.find_for_commit(commit.author_email, commit.author_name) || user
+    commit.author || user
   end
 end