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Add function for testing whether to ignore specific error.

Changeset e15f8632f9e9…

Parent 3aee61cb7dbd…

by Jelmer Vernooij

Changes to one file · Browse files at e15f8632f9e9 Showing diff from parent 3aee61cb7dbd Diff from another changeset...

Change 1 of 2 Show Changes Only dulwich/​tests/​compat/​server_utils.py Stacked
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 # server_utils.py -- Git server compatibility utilities  # Copyright (C) 2010 Google, Inc.  #  # 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; version 2  # of the License or (at your option) any later version of  # the License.  #  # 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., 51 Franklin Street, Fifth Floor, Boston,  # MA 02110-1301, USA.    """Utilities for testing git server compatibility."""   - +import errno  import os  import select  import shutil  import socket  import tempfile  import threading    from dulwich.repo import Repo  from dulwich.server import (   ReceivePackHandler,   )  from dulwich.tests.utils import (   tear_down_repo,   )  from dulwich.tests.compat.utils import (   import_repo,   run_git_or_fail,   )      class ServerTests(object):   """Base tests for testing servers.     Does not inherit from TestCase so tests are not automatically run.   """     def import_repos(self):   self._old_repo = import_repo('server_old.export')   self.addCleanup(tear_down_repo, self._old_repo)   self._new_repo = import_repo('server_new.export')   self.addCleanup(tear_down_repo, self._new_repo)     def url(self, port):   return '%s://localhost:%s/' % (self.protocol, port)     def branch_args(self, branches=None):   if branches is None:   branches = ['master', 'branch']   return ['%s:%s' % (b, b) for b in branches]     def test_push_to_dulwich(self):   self.import_repos()   self.assertReposNotEqual(self._old_repo, self._new_repo)   port = self._start_server(self._old_repo)     run_git_or_fail(['push', self.url(port)] + self.branch_args(),   cwd=self._new_repo.path)   self.assertReposEqual(self._old_repo, self._new_repo)     def test_fetch_from_dulwich(self):   self.import_repos()   self.assertReposNotEqual(self._old_repo, self._new_repo)   port = self._start_server(self._new_repo)     run_git_or_fail(['fetch', self.url(port)] + self.branch_args(),   cwd=self._old_repo.path)   # flush the pack cache so any new packs are picked up   self._old_repo.object_store._pack_cache = None   self.assertReposEqual(self._old_repo, self._new_repo)     def test_fetch_from_dulwich_no_op(self):   self._old_repo = import_repo('server_old.export')   self._new_repo = import_repo('server_old.export')   self.assertReposEqual(self._old_repo, self._new_repo)   port = self._start_server(self._new_repo)     run_git_or_fail(['fetch', self.url(port)] + self.branch_args(),   cwd=self._old_repo.path)   # flush the pack cache so any new packs are picked up   self._old_repo.object_store._pack_cache = None   self.assertReposEqual(self._old_repo, self._new_repo)     def test_clone_from_dulwich_empty(self):   old_repo_dir = os.path.join(tempfile.mkdtemp(), 'empty_old')   run_git_or_fail(['init', '--quiet', '--bare', old_repo_dir])   self._old_repo = Repo(old_repo_dir)   port = self._start_server(self._old_repo)     new_repo_base_dir = tempfile.mkdtemp()   try:   new_repo_dir = os.path.join(new_repo_base_dir, 'empty_new')   run_git_or_fail(['clone', self.url(port), new_repo_dir],   cwd=new_repo_base_dir)   new_repo = Repo(new_repo_dir)   self.assertReposEqual(self._old_repo, new_repo)   finally:   # We don't create a Repo from new_repo_dir until after some errors   # may have occurred, so don't depend on tearDown to clean it up.   shutil.rmtree(new_repo_base_dir)      class ShutdownServerMixIn:   """Mixin that allows serve_forever to be shut down.     The methods in this mixin are backported from SocketServer.py in the Python   2.6.4 standard library. The mixin is unnecessary in 2.6 and later, when   BaseServer supports the shutdown method directly.   """     def __init__(self):   self.__is_shut_down = threading.Event()   self.__serving = False     def serve_forever(self, poll_interval=0.5):   """Handle one request at a time until shutdown.     Polls for shutdown every poll_interval seconds. Ignores   self.timeout. If you need to do periodic tasks, do them in   another thread.   """   self.__serving = True   self.__is_shut_down.clear()   while self.__serving:   # XXX: Consider using another file descriptor or   # connecting to the socket to wake this up instead of   # polling. Polling reduces our responsiveness to a   # shutdown request and wastes cpu at all other times.   r, w, e = select.select([self], [], [], poll_interval)   if r:   self._handle_request_noblock()   self.__is_shut_down.set()     serve = serve_forever # override alias from TCPGitServer     def shutdown(self):   """Stops the serve_forever loop.     Blocks until the loop has finished. This must be called while   serve_forever() is running in another thread, or it will deadlock.   """   self.__serving = False   self.__is_shut_down.wait()     def handle_request(self):   """Handle one request, possibly blocking.     Respects self.timeout.   """   # Support people who used socket.settimeout() to escape   # handle_request before self.timeout was available.   timeout = self.socket.gettimeout()   if timeout is None:   timeout = self.timeout   elif self.timeout is not None:   timeout = min(timeout, self.timeout)   fd_sets = select.select([self], [], [], timeout)   if not fd_sets[0]:   self.handle_timeout()   return   self._handle_request_noblock()     def _handle_request_noblock(self):   """Handle one request, without blocking.     I assume that select.select has returned that the socket is   readable before this function was called, so there should be   no risk of blocking in get_request().   """   try:   request, client_address = self.get_request()   except socket.error:   return   if self.verify_request(request, client_address):   try:   self.process_request(request, client_address)   except:   self.handle_error(request, client_address)   self.close_request(request)      # TODO(dborowitz): Come up with a better way of testing various permutations of  # capabilities. The only reason it is the way it is now is that side-band-64k  # was only recently introduced into git-receive-pack.  class NoSideBand64kReceivePackHandler(ReceivePackHandler):   """ReceivePackHandler that does not support side-band-64k."""     @classmethod   def capabilities(cls):   return tuple(c for c in ReceivePackHandler.capabilities()   if c != 'side-band-64k') + + +def ignore_error((e_type, e_value, e_tb)): + """Check whether this error is safe to ignore.""" + return (issubclass(e_type, socket.error) and + e_value[0] in (errno.ECONNRESET, errno.EPIPE)) +