dirstate-v2: Introduce a docket file
.hg/dirstate now only contains some metadata to point to a separate data file
named .hg/dirstate.{}.d with a random hexadecimal identifier. For now every
update creates a new data file and removes the old one, but later we’ll
(usually) append to an existing file.
Separating into two files allows doing the "write to a temporary file then
atomically rename into destination" dance with only a small docket file,
without always rewriting a lot of data.
Differential Revision: https://phab.mercurial-scm.org/D11088
from __future__ import absolute_import, print_function
import io
import unittest
import silenttestrunner
from mercurial import (
wireprotoserver,
wireprotov1server,
)
from mercurial.utils import procutil
class SSHServerGetArgsTests(unittest.TestCase):
def testparseknown(self):
tests = [
(b'* 0\nnodes 0\n', [b'', {}]),
(
b'* 0\nnodes 40\n1111111111111111111111111111111111111111\n',
[b'1111111111111111111111111111111111111111', {}],
),
]
for input, expected in tests:
self.assertparse(b'known', input, expected)
def assertparse(self, cmd, input, expected):
server = mockserver(input)
proto = wireprotoserver.sshv1protocolhandler(
server._ui, server._fin, server._fout
)
_func, spec = wireprotov1server.commands[cmd]
self.assertEqual(proto.getargs(spec), expected)
def mockserver(inbytes):
ui = mockui(inbytes)
repo = mockrepo(ui)
return wireprotoserver.sshserver(ui, repo)
class mockrepo(object):
def __init__(self, ui):
self.ui = ui
class mockui(object):
def __init__(self, inbytes):
self.fin = io.BytesIO(inbytes)
self.fout = io.BytesIO()
self.ferr = io.BytesIO()
def protectfinout(self):
return self.fin, self.fout
def restorefinout(self, fin, fout):
pass
if __name__ == '__main__':
# Don't call into msvcrt to set BytesIO to binary mode
procutil.setbinary = lambda fp: True
silenttestrunner.main(__name__)