updated refs to not include directories (duh), fixed unit tests to not expect Git calls

modified initilization method to accept flag to force it to see a bare dir

lib/grit/ref.rb

@@ -15,10 +15,12 @@ module Grit
         Dir.chdir(repo.git.git_dir) do
           files = Dir.glob(prefix + '/**/*')
           files.each do |ref|
-            id = File.read(ref).chomp
-            name = ref.sub("#{prefix}/", '')
-            commit = Commit.create(repo, :id => id)
-            refs << self.new(name, commit)
+            if File.file?(ref)
+              id = File.read(ref).chomp
+              name = ref.sub("#{prefix}/", '')
+              commit = Commit.create(repo, :id => id)
+              refs << self.new(name, commit)
+            end
           end
         end
         

lib/grit/repo.rb

@@ -18,13 +18,13 @@ module Grit
     #   g = Repo.new("/Users/tom/public/grit.git")
     #
     # Returns Grit::Repo
-    def initialize(path)
+    def initialize(path, options = {})
       epath = File.expand_path(path)
       
       if File.exist?(File.join(epath, '.git'))
         self.path = File.join(epath, '.git')
         @bare = false
-      elsif File.exist?(epath) && epath =~ /\.git$/
+      elsif File.exist?(epath) && (epath =~ /\.git$/ || options[:is_bare])
         self.path = epath
         @bare = true
       elsif File.exist?(epath)

test/dot_git/refs/heads/test/chacon

@@ -0,0 +1 @@
+ca8a30f5a7f0f163bbe3b6f0abf18a6c83b0687a

test/test_head.rb

@@ -2,21 +2,20 @@ require File.dirname(__FILE__) + '/helper'
 
 class TestHead < Test::Unit::TestCase
   def setup
-    @r = Repo.new(GRIT_REPO)
-    Git.any_instance.expects(:for_each_ref).returns(fixture('for_each_ref'))
+    @r = Repo.new(File.join(File.dirname(__FILE__), *%w[dot_git]), :is_bare => true)
   end
   
   # inspect
   
   def test_inspect
     head = @r.heads.first
-    assert_equal %Q{#<Grit::Head "#{head.name}">}, head.inspect
+    assert_equal %Q{#<Grit::Head "master">}, head.inspect
   end
-
+  
   # heads with slashes
 
   def test_heads_with_slashes
-    head = @r.heads.last
-    assert_equal %Q{#<Grit::Head "mojombo/master">}, head.inspect
+    head = @r.heads[1]
+    assert_equal %Q{#<Grit::Head "test/chacon">}, head.inspect
   end
 end

test/test_remote.rb

@@ -3,7 +3,6 @@ require File.dirname(__FILE__) + '/helper'
 class TestRemote < Test::Unit::TestCase
   def setup
     @r = Repo.new(GRIT_REPO)
-    Git.any_instance.expects(:for_each_ref).returns(fixture('for_each_ref_remotes'))
   end
 
   # inspect

test/test_tag.rb

@@ -8,20 +8,16 @@ class TestTag < Test::Unit::TestCase
   # list_from_string
   
   def test_list_from_string
-    Git.any_instance.expects(:for_each_ref).returns(fixture('for_each_ref_tags'))
-    
     tags = @r.tags
     
     assert_equal 1, tags.size
-    assert_equal 'v0.7.1', tags.first.name
-    assert_equal '634396b2f541a9f2d58b00be1a07f0c358b999b3', tags.first.commit.id
+    assert_equal 'v0.7.0', tags.first.name
+    assert_equal 'f0055fda16c18fd8b27986dbf038c735b82198d7', tags.first.commit.id
   end
   
   # inspect
   
   def test_inspect
-    Git.any_instance.expects(:for_each_ref).returns(fixture('for_each_ref'))
-    
     tag = @r.tags.first
     
     assert_equal %Q{#<Grit::Tag "#{tag.name}">}, tag.inspect