Merge branch 'odb'

Conflicts:
	lib/git/cmd.py

1 files changed, 98 insertions, 0 deletions

diff --git a/test/git/performance/test_commit.py b/test/git/performance/test_commit.py
new file mode 100644
index 00000000..0571d0d9
--- /dev/null
+++ b/test/git/performance/test_commit.py
@@ -0,0 +1,98 @@
+# 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 lib import *
+from git import *
+from test.git.test_commit import assert_commit_serialization
+from cStringIO import StringIO
+from time import time
+import sys
+
+class TestPerformance(TestBigRepoRW):
+
+	# ref with about 100 commits in its history
+	ref_100 = '0.1.6'
+
+	def _query_commit_info(self, c):
+		c.author
+		c.authored_date
+		c.author_tz_offset
+		c.committer
+		c.committed_date
+		c.committer_tz_offset
+		c.message
+		c.parents
+		
+	def test_iteration(self):
+		no = 0
+		nc = 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.rorepo.iter_commits(self.ref_100):
+			nc += 1
+			self._query_commit_info(c)
+			for obj in c.tree.traverse():
+				obj.size
+				no += 1
+			# END for each object
+		# END for each commit
+		elapsed_time = time() - st
+		print >> sys.stderr, "Traversed %i Trees and a total of %i unchached objects in %s [s] ( %f objs/s )" % (nc, no, elapsed_time, no/elapsed_time) 
+		
+	def test_commit_traversal(self):
+		# bound to cat-file parsing performance
+		nc = 0
+		st = time()
+		for c in self.gitrorepo.commit(self.head_sha_2k).traverse(branch_first=False):
+			nc += 1
+			self._query_commit_info(c)
+		# END for each traversed commit
+		elapsed_time = time() - st
+		print >> sys.stderr, "Traversed %i Commits in %s [s] ( %f commits/s )" % (nc, elapsed_time, nc/elapsed_time)
+		
+	def test_commit_iteration(self):
+		# bound to stream parsing performance
+		nc = 0
+		st = time()
+		for c in Commit.iter_items(self.gitrorepo, self.head_sha_2k):
+			nc += 1
+			self._query_commit_info(c)
+		# END for each traversed commit
+		elapsed_time = time() - st
+		print >> sys.stderr, "Iterated %i Commits in %s [s] ( %f commits/s )" % (nc, elapsed_time, nc/elapsed_time)
+		
+	def test_commit_serialization(self):
+		assert_commit_serialization(self.gitrwrepo, self.head_sha_2k, True)
+		
+		rwrepo = self.gitrwrepo
+		make_object = rwrepo.odb.store
+		# direct serialization - deserialization can be tested afterwards
+		# serialization is probably limited on IO
+		hc = rwrepo.commit(self.head_sha_2k)
+		
+		commits = list()
+		nc = 5000
+		st = time()
+		for i in xrange(nc):
+			cm = Commit(	rwrepo, Commit.NULL_HEX_SHA, hc.tree, 
+							hc.author, hc.authored_date, hc.author_tz_offset, 
+							hc.committer, hc.committed_date, hc.committer_tz_offset, 
+							str(i), parents=hc.parents, encoding=hc.encoding)
+			
+			stream = StringIO()
+			cm._serialize(stream)
+			slen = stream.tell()
+			stream.seek(0)
+			
+			cm.sha = make_object(IStream(Commit.type, slen, stream)).sha
+		# END commit creation
+		elapsed = time() - st
+		
+		print >> sys.stderr, "Serialized %i commits to loose objects in %f s ( %f commits / s )" % (nc, elapsed, nc / elapsed)