Added, that Git#changed_files updates the repository and working co…

…py (`fetch` && `reset --hard`)

lib/hide/git.rb

@@ -8,7 +8,7 @@ def initialize(path, sha1, sha2)
     end
 
     def changed_files
-      in_repo('fetch')
+      update_repo
       command = %Q[log --no-merges --pretty="format:%H :|: %s" --stat --name-only --no-color #{@sha1}..#{@sha2}]
       output  = in_repo(command)
       parse output
@@ -30,5 +30,11 @@ def parse output
       end.flatten
     end
 
+    def update_repo
+      in_repo('fetch')
+      # TODO: Make branch optional
+      in_repo('reset origin/master --hard')
+    end
+
   end
 end

test/unit/git_test.rb

@@ -12,11 +12,19 @@ class GitTest < Test::Unit::TestCase
 
       should "return updated files" do
         command = %Q[log --no-merges --pretty="format:%H :|: %s" --stat --name-only --no-color abc123..def456]
-        @git.expects(:in_repo).with('fetch').returns('OK')
+        @git.expects(:update_repo).returns(true)
         @git.expects(:in_repo).with(command).returns(GITLOG)
+
         assert_equal 10, @git.changed_files.size
       end
 
+      should "update the repository" do
+        @git.expects(:in_repo).with('fetch')
+        @git.expects(:in_repo).with('reset origin/master --hard')
+
+        @git.update_repo
+      end
+
     end
 
   end