Index: app/models/repository/git.rb
========================================================================
--- app/models/repository/git.rb	Thu May 30 15:33:41 2013 +0200
+++ app/models/repository/git.rb	Thu May 30 15:36:29 2013 +0200
@@ -210,6 +210,7 @@
         # that it's not in the db.
         save_revision(rev)
         save_revision_branches(rev)
+        save_revision_tags(rev)
       end
     end
     h["heads"] = repo_heads.dup
@@ -218,6 +219,18 @@
   end
   private :save_revisions
 
+  def save_revision_tags(rev)
+    db_rev = find_changeset_by_name(rev.scmid)
+    unless db_rev.nil?
+      tags = scm.revision_tags(rev.scmid)
+      unless tags.nil?
+        db_rev.tags = tags.join(',')
+        db_rev.save
+      end
+    end
+  end
+  private :save_revision_tags
+
   def save_revision_branches(rev)
     db_rev = find_changeset_by_name(rev.scmid)
     unless db_rev.nil?
@@ -230,6 +243,7 @@
   end
   private :save_revision_branches
 
+  
   def save_revision(rev)
     parents = (rev.parents || []).collect{|rp| find_changeset_by_name(rp)}.compact
     changeset = Changeset.create(
Index: app/views/issues/_changesets.html.erb
================================================================================
--- app/views/issues/_changesets.html.erb	Thu May 30 15:33:41 2013 +0200
+++ app/views/issues/_changesets.html.erb	Thu May 30 15:36:29 2013 +0200
@@ -10,7 +10,14 @@
             </span>
         <% end %>
         <br />
-
+        <% if changeset.tags? %>
+            <span style="float: right;">
+            <%== changeset.tags.split(',').collect{ |tag|
+            changeset.repository.tags.include?(tag) ? 
+              tag : nil }.compact.join(' / ') %>
+            </span>
+        <% end %>
+        <br />
         <span class="author"><%= authoring(changeset.committed_on, changeset.author) %></span></p>
     <div class="wiki">
         <%= textilizable(changeset, :comments) %>
Index: db/migrate/20130530152055_add_changesets_tags.rb
===============================================================================================
--- db/migrate/20130530152055_add_changesets_tags.rb	Thu Jan 01 00:00:00 1970 +0000
+++ db/migrate/20130530152055_add_changesets_tags.rb	Thu May 30 15:36:29 2013 +0200
@@ -0,0 +1,9 @@
+class AddChangesetsTags < ActiveRecord::Migration
+  def self.up
+    add_column :changesets, :tags, :string, :limit => nil, :default => nil
+  end
+
+  def self.down
+    remove_column :changesets, :tags
+  end
+end
Index: lib/redmine/scm/adapters/git_adapter.rb
===============================================================================
--- lib/redmine/scm/adapters/git_adapter.rb	Thu May 30 15:33:41 2013 +0200
+++ lib/redmine/scm/adapters/git_adapter.rb	Thu May 30 15:36:29 2013 +0200
@@ -325,6 +325,20 @@
           nil
         end
 
+        def revision_tags(identifier)
+          cmd_args = %w|tag -l --contains|
+          cmd_args << identifier
+          tags = []
+          git_cmd(cmd_args) do |io|
+            io.each_line do |line|
+              tags << line.match('(.*)$')[1]
+            end
+          end
+          tags.sort!
+        rescue ScmCommandAborted
+          nil
+        end
+        
         def diff(path, identifier_from, identifier_to=nil)
           path ||= ''
           cmd_args = []