blender-asset-tracer/tests/abstract_test.py
Sybren A. Stüvel 9074421ec3 Shaman server support
The Shaman server is a file storage system that identifies files by
SHA256sum and file length. BAT can send packs there by only uploading
changed/new files. The BAT pack is reproduced at the Shaman server's
checkout directory by creating symlinks to the files in its file
storage.

Retrying sending files:

When we can defer uploading a file (that is, when we have other files to
upload as well, and we could send the current file at a later moment) we
send an `X-Shaman-Can-Defer-Upload: true` header in the file upload
request. In that case, when someone else is already uploading that file,
a `208 Already Reported` response is sent and the connection is closed.
Python's Requests library unfortunately won't give us that response if
we're still streaming the request, and raise a ConnectionError exception
instead. This exception can mean two things:

- If the `X-Shaman-Can-Defer-Upload: true` header was sent: someone else
  is currently uploading that file, so defer it.
- If that header was not sent: that file is already completely uploaded
  and does not need to be uploaded again.

Instead of retrying each failed file, after a few failures we now just
resend the definition file to get a new list of files to upload, then
send those. This should considerably reduce the number of HTTP calls
when multiple clients are uploading the same set of files.
2019-03-01 14:07:24 +01:00

44 lines
1.4 KiB
Python

# ***** BEGIN GPL LICENSE BLOCK *****
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
# ***** END GPL LICENCE BLOCK *****
#
# (c) 2019, Blender Foundation - Sybren A. Stüvel
import logging
import pathlib
import unittest
from blender_asset_tracer import blendfile
logging.basicConfig(
format='%(asctime)-15s %(levelname)8s %(name)s %(message)s',
level=logging.INFO)
class AbstractBlendFileTest(unittest.TestCase):
@classmethod
def setUpClass(cls):
cls.blendfiles = pathlib.Path(__file__).with_name('blendfiles')
def setUp(self):
self.bf = None
def tearDown(self):
if self.bf is not None:
self.bf.close()
self.bf = None
blendfile.close_all_cached()