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# Copyright (C) 2010, 2011 Sebastian Thiel (byronimo@gmail.com) and contributors
#
# This module is part of GitDB and is released under
# the New BSD License: http://www.opensource.org/licenses/bsd-license.php
"""Module with examples from the tutorial section of the docs"""
from lib import TestBase, fixture_path
from git.base import IStream
from git.db.py.loose import PureLooseObjectODB
from git.util import pool
from cStringIO import StringIO
from async import IteratorReader
class TestExamples(TestBase):
def test_base(self):
ldb = PureLooseObjectODB(fixture_path("../../../.git/objects"))
for sha1 in ldb.sha_iter():
oinfo = ldb.info(sha1)
ostream = ldb.stream(sha1)
assert oinfo[:3] == ostream[:3]
assert len(ostream.read()) == ostream.size
assert ldb.has_object(oinfo.binsha)
# END for each sha in database
# assure we close all files
try:
del(ostream)
del(oinfo)
except UnboundLocalError:
pass
# END ignore exception if there are no loose objects
data = "my data"
istream = IStream("blob", len(data), StringIO(data))
# the object does not yet have a sha
assert istream.binsha is None
ldb.store(istream)
# now the sha is set
assert len(istream.binsha) == 20
assert ldb.has_object(istream.binsha)
# async operation
# Create a reader from an iterator
reader = IteratorReader(ldb.sha_iter())
# get reader for object streams
info_reader = ldb.stream_async(reader)
# read one
info = info_reader.read(1)[0]
# read all the rest until depletion
ostreams = info_reader.read()
# set the pool to use two threads
pool.set_size(2)
# synchronize the mode of operation
pool.set_size(0)
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