test_performance: module containing benchmarks to get an idea of the achieved throughput

repo.commits: max_count is None by default
moved benchmark-like test from test_commit to test_performance

Author: Byron

CHANGES

@@ -42,6 +42,8 @@ Repo
 * tree method now requires a Ref instance as input and defaults to the active_branche
   instead of master
 * Removed 'log' method as it as effectively the same as the 'commits' method
+* 'commits' method has no max-count of returned commits anymore, it now behaves 
+ like git-rev-list
 
 Diff
 ----

lib/git/repo.py

@@ -197,7 +197,7 @@ def blame(self, commit, file):
 			# END distinguish hexsha vs other information
 		return blames
 
-	def commits(self, start='master', path='', max_count=10, skip=0):
+	def commits(self, start='master', path='', max_count=None, skip=0):
 		"""
 		A list of Commit objects representing the history of a given ref/commit
 
@@ -209,7 +209,7 @@ def commits(self, start='master', path='', max_count=10, skip=0):
 			Commits that do not contain that path will not be returned.
 
 		 ``max_count``
-			is the maximum number of commits to return (default 10)
+			is the maximum number of commits to return (default None)
 
 		  ``skip``
 			is the number of commits to skip (default 0) which will effectively 
@@ -220,7 +220,10 @@ def commits(self, start='master', path='', max_count=10, skip=0):
 		"""
 		options = {'max_count': max_count,
 				   'skip': skip}
-
+				   
+		if max_count is None:
+			options.pop('max_count')		   
+				  
 		return Commit.list_items(self, start, path, **options)
 
 	def commits_between(self, frm, to):

test/git/test_commit.py

@@ -230,19 +230,3 @@ def test_equality(self):
 		assert_equal(commit1, commit2)
 		assert_not_equal(commit2, commit3)
 
-	def test_iteration(self):
-		root = self.repo.tree()
-		head = self.repo.active_branch
-		head_commit = self.repo.active_branch.object
-		num_objs = 0
-		
-		# find the first commit containing the given path - always do a full 
-		# iteration ( restricted to the path in question ), but in fact it should 
-		# return quite a lot of commits, we just take one and hence abort the operation
-		
-		for obj in root.traverse():
-			num_objs += 1
-			del( head_commit.tree )		# force it to clear the cache, just to make it harder
-			assert obj in head_commit.tree.traverse()
-		# END for each object
-		

test/git/test_performance.py

@@ -0,0 +1,38 @@
+# test_performance.py
+# Copyright (C) 2008, 2009 Michael Trier (mtrier@gmail.com) and contributors
+#
+# This module is part of GitPython and is released under
+# the BSD License: http://www.opensource.org/licenses/bsd-license.php
+
+from test.testlib import *
+from git import *
+from time import time
+
+class TestPerformance(object):
+	def setup(self):
+		self.repo = Repo(GIT_REPO)
+
+	def test_iteration(self):
+		num_objs = 0
+		num_commits = 0
+		
+		# find the first commit containing the given path - always do a full 
+		# iteration ( restricted to the path in question ), but in fact it should 
+		# return quite a lot of commits, we just take one and hence abort the operation
+		
+		st = time()
+		for c in self.repo.commits():
+			num_commits += 1
+			c.author
+			c.authored_date
+			c.committer
+			c.committed_date
+			c.message
+			for obj in c.tree.traverse():
+				obj.size
+				num_objs += 1
+			# END for each object
+		# END for each commit
+		elapsed_time = time() - st
+		print "Traversed %i Trees and a total of %i unchached objects in %s [s] ( %f objs/s )" % (num_commits, num_objs, elapsed_time, num_objs/elapsed_time) 
+