Merge branch 'hierarchyfix' into improvements

* hierarchyfix:
  Added remaining tests for new base classes and removed some methods whose existance was doubtful or unsafe
  Fixed remaining tests to deal with the changes
  commit: fixed failing commit tests as the mocked git command would always return the same thing which does not work anymore - re-implemented it in a more dynamic manner, but in the end tests will have to be revised anyway
  mode-only change for test system - this should be in a separate repository in fact so that changes are a little more self-contained and not depending on the actual source repository
  fixed issue in Ref.name implementation which would not handle components properly
  lazymixin system now supports per-attribute baking, it is up to the class whether it bakes more. This also leads to more efficient use of memory as values are only cached and set when required - the baking system does not require an own tracking variable anymore, and values are only to be cached once - then python will natively find the cache without involving any additional overhead. This works by using __getattr__ instead of __get_attribute__ which would always be called
  put Tree and Blob onto a new base class suitable to deal with IndexObjects
  blob tests fixed to deal with changes to the Blob type
  converted all spaces to tabs ( 4 spaces = 1 tab ) just to allow me and my editor to work with the files properly. Can convert it back for releaes
  Re-designed the tag testing - it does not use fixtures anymore but dyamically checks the existance of tags within the repository - it basically tests the interface and checks that expected return types are actually returned
  Intermediate commit: commit,tree and blob objects now derive from object - test is in place which still fails on purpose. Need to integrate tags which can be objects or just a special form of a ref
  Renamed lazy.py to base.py to have a file for base classes - lazy not yet changed to allow proper rename tracking

1 files changed, 52 insertions, 51 deletions

diff --git a/lib/git/stats.py b/lib/git/stats.py
index 307e2f2f..19b1591f 100644
--- a/lib/git/stats.py
+++ b/lib/git/stats.py
@@ -5,55 +5,56 @@
 # the BSD License: http://www.opensource.org/licenses/bsd-license.php
 
 class Stats(object):
-    """
-    Represents stat information as presented by git at the end of a merge. It is 
-    created from the output of a diff operation.
-    
-    ``Example``::
-    
-     c = Commit( sha1 )
-     s = c.stats
-     s.total         # full-stat-dict
-     s.files         # dict( filepath : stat-dict )
-     
-    ``stat-dict``
-    
-    A dictionary with the following keys and values::
-     
-      deletions = number of deleted lines as int
-      insertions = number of inserted lines as int
-      lines = total number of lines changed as int, or deletions + insertions
-      
-    ``full-stat-dict``
-    
-    In addition to the items in the stat-dict, it features additional information::
-    
-     files = number of changed files as int
-    
-    """
-    def __init__(self, repo, total, files):
-        self.repo = repo
-        self.total = total
-        self.files = files
+	"""
+	Represents stat information as presented by git at the end of a merge. It is 
+	created from the output of a diff operation.
+	
+	``Example``::
+	
+	 c = Commit( sha1 )
+	 s = c.stats
+	 s.total		 # full-stat-dict
+	 s.files		 # dict( filepath : stat-dict )
+	 
+	``stat-dict``
+	
+	A dictionary with the following keys and values::
+	 
+	  deletions = number of deleted lines as int
+	  insertions = number of inserted lines as int
+	  lines = total number of lines changed as int, or deletions + insertions
+	  
+	``full-stat-dict``
+	
+	In addition to the items in the stat-dict, it features additional information::
+	
+	 files = number of changed files as int
+	
+	"""
+	__slots__ = ("total", "files")
+	
+	def __init__(self, total, files):
+		self.total = total
+		self.files = files
 
-    @classmethod
-    def list_from_string(cls, repo, text):
-    	"""
-    	Create a Stat object from output retrieved by git-diff.
-    	
-    	Returns
-    		git.Stat
-    	"""
-        hsh = {'total': {'insertions': 0, 'deletions': 0, 'lines': 0, 'files': 0}, 'files': {}}
-        for line in text.splitlines():
-            (raw_insertions, raw_deletions, filename) = line.split("\t")
-            insertions = raw_insertions != '-' and int(raw_insertions) or 0
-            deletions = raw_deletions != '-' and int(raw_deletions) or 0
-            hsh['total']['insertions'] += insertions
-            hsh['total']['deletions'] += deletions
-            hsh['total']['lines'] += insertions + deletions
-            hsh['total']['files'] += 1
-            hsh['files'][filename.strip()] = {'insertions': insertions,
-                                              'deletions': deletions,
-                                              'lines': insertions + deletions}
-        return Stats(repo, hsh['total'], hsh['files'])
+	@classmethod
+	def list_from_string(cls, repo, text):
+		"""
+		Create a Stat object from output retrieved by git-diff.
+		
+		Returns
+			git.Stat
+		"""
+		hsh = {'total': {'insertions': 0, 'deletions': 0, 'lines': 0, 'files': 0}, 'files': {}}
+		for line in text.splitlines():
+			(raw_insertions, raw_deletions, filename) = line.split("\t")
+			insertions = raw_insertions != '-' and int(raw_insertions) or 0
+			deletions = raw_deletions != '-' and int(raw_deletions) or 0
+			hsh['total']['insertions'] += insertions
+			hsh['total']['deletions'] += deletions
+			hsh['total']['lines'] += insertions + deletions
+			hsh['total']['files'] += 1
+			hsh['files'][filename.strip()] = {'insertions': insertions,
+											  'deletions': deletions,
+											  'lines': insertions + deletions}
+		return Stats(hsh['total'], hsh['files'])