Move LazyMixin type to gitdb, index reading now uses file_contents_ro from gitdb as well

1 files changed, 3 insertions, 31 deletions

diff --git a/lib/git/utils.py b/lib/git/utils.py
index 343338a9..bd7cc0f3 100644
--- a/lib/git/utils.py
+++ b/lib/git/utils.py
@@ -13,7 +13,9 @@ from gitdb.util import (
 	stream_copy,
 	make_sha, 
 	FDStreamWrapper,
-	LockedFD
+	LockedFD, 
+	file_contents_ro, 
+	LazyMixin
 	)
 
 
@@ -274,36 +276,6 @@ class BlockingLockFile(LockFile):
 		# END endless loop
 	
 
-class LazyMixin(object):
-	"""
-	Base class providing an interface to lazily retrieve attribute values upon 
-	first access. If slots are used, memory will only be reserved once the attribute
-	is actually accessed and retrieved the first time. All future accesses will 
-	return the cached value as stored in the Instance's dict or slot.
-	"""
-	__slots__ = tuple()
-	
-	def __getattr__(self, attr):
-		"""
-		Whenever an attribute is requested that we do not know, we allow it 
-		to be created and set. Next time the same attribute is reqeusted, it is simply
-		returned from our dict/slots.
-		"""
-		self._set_cache_(attr)
-		# will raise in case the cache was not created
-		return object.__getattribute__(self, attr)
-
-	def _set_cache_(self, attr):
-		""" This method should be overridden in the derived class. 
-		It should check whether the attribute named by attr can be created
-		and cached. Do nothing if you do not know the attribute or call your subclass
-		
-		The derived class may create as many additional attributes as it deems 
-		necessary in case a git command returns more information than represented 
-		in the single attribute."""
-		pass
-
-
 class IterableList(list):
 	"""
 	List of iterable objects allowing to query an object by id or by named index::