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dummysmtpd: don't die on client connection errors...
dummysmtpd: don't die on client connection errors The connection refused error in test-patchbomb-tls.t[1] is sporadic, but one of the more often seen errors on Windows. I added enough logging to a file and dumped it out at the end to make the following observations: - The listening socket is successfully created and bound to the port, and the "listening at..." message is always logged. - Generally, the following is the entire log output, with the "accepted ..." message having been added after `sslutil.wrapserversocket`: listening at localhost:$HGPORT $LOCALIP ssl error accepted connect accepted connect $LOCALIP from=quux to=foo, bar $LOCALIP ssl error - In the cases that fail, asyncore.loop() in the run() method is exiting, but not with an exception. - In the cases that fail, the following is logged right after "listening ...": Traceback (most recent call last): File "c:\\Python27\\lib\\asyncore.py", line 83, in read obj.handle_read_event() File "c:\\Python27\\lib\\asyncore.py", line 443, in handle_read_event self.handle_accept() File "../tests/dummysmtpd.py", line 80, in handle_accept conn = sslutil.wrapserversocket(conn, ui, certfile=self._certfile) File "..\\mercurial\\sslutil.py", line 570, in wrapserversocket return sslcontext.wrap_socket(sock, server_side=True) File "c:\\Python27\\lib\\ssl.py", line 363, in wrap_socket _context=self) File "c:\\Python27\\lib\\ssl.py", line 611, in __init__ self.do_handshake() File "c:\\Python27\\lib\\ssl.py", line 840, in do_handshake self._sslobj.do_handshake() error: [Errno 10054] $ECONNRESET$ - If the base class handler is overridden completely, the the first "ssl error" line is replaced by the stacktrace, but the other lines are unchanged. The client behaves no differently, whether or not the server stacktraced. In general, `./run-tests.py --local -j9 -t9000 test-patchbomb-tls.t --runs-per-test 20` would show the issue after a run or two. With this change, `./run-tests.py --local -j9 -t9000 test-patchbomb-tls.t --loop` ran 800 times without a hiccup. This makes me wonder if the other connection refused messages that bubble up on occasion are caused by a similar issue. It seems a bit drastic to kill the whole server on account of a single communication failure with a client. # no-check-commit because of handle_error() [1] https://buildbot.mercurial-scm.org/builders/Win7%20x86_64%20hg%20tests/builds/421/steps/run-tests.py%20%28python%202.7.13%29/logs/stdio

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#!/usr/bin/env python
#
# Copyright 2014 Matt Mackall <mpm@selenic.com>
#
# A tool/hook to run basic sanity checks on commits/patches for
# submission to Mercurial. Install by adding the following to your
# .hg/hgrc:
#
# [hooks]
# pretxncommit = contrib/check-commit
#
# The hook can be temporarily bypassed with:
#
# $ BYPASS= hg commit
#
# See also: https://mercurial-scm.org/wiki/ContributingChanges
from __future__ import absolute_import, print_function
import os
import re
import sys
commitheader = r"^(?:# [^\n]*\n)*"
afterheader = commitheader + r"(?!#)"
beforepatch = afterheader + r"(?!\n(?!@@))"
errors = [
(beforepatch + r".*[(]bc[)]", "(BC) needs to be uppercase"),
(beforepatch + r".*[(]issue \d\d\d",
"no space allowed between issue and number"),
(beforepatch + r".*[(]bug(\d|\s)", "use (issueDDDD) instead of bug"),
(commitheader + r"# User [^@\n]+\n", "username is not an email address"),
(commitheader + r"(?!merge with )[^#]\S+[^:] ",
"summary line doesn't start with 'topic: '"),
(afterheader + r"[A-Z][a-z]\S+", "don't capitalize summary lines"),
(afterheader + r"[^\n]*: *[A-Z][a-z]\S+", "don't capitalize summary lines"),
(afterheader + r"\S*[^A-Za-z0-9-_]\S*: ",
"summary keyword should be most user-relevant one-word command or topic"),
(afterheader + r".*\.\s*\n", "don't add trailing period on summary line"),
(afterheader + r".{79,}", "summary line too long (limit is 78)"),
(r"\n\+\n( |\+)\n", "adds double empty line"),
(r"\n \n\+\n", "adds double empty line"),
# Forbid "_" in function name.
#
# We skip the check for cffi related functions. They use names mapping the
# name of the C function. C function names may contain "_".
(r"\n\+[ \t]+def (?!cffi)[a-z]+_[a-z]",
"adds a function with foo_bar naming"),
]
word = re.compile('\S')
def nonempty(first, second):
if word.search(first):
return first
return second
def checkcommit(commit, node=None):
exitcode = 0
printed = node is None
hits = []
signtag = (afterheader +
r'Added (tag [^ ]+|signature) for changeset [a-f0-9]{12}')
if re.search(signtag, commit):
return 0
for exp, msg in errors:
for m in re.finditer(exp, commit):
end = m.end()
trailing = re.search(r'(\\n)+$', exp)
if trailing:
end -= len(trailing.group()) / 2
hits.append((end, exp, msg))
if hits:
hits.sort()
pos = 0
last = ''
for n, l in enumerate(commit.splitlines(True)):
pos += len(l)
while len(hits):
end, exp, msg = hits[0]
if pos < end:
break
if not printed:
printed = True
print("node: %s" % node)
print("%d: %s" % (n, msg))
print(" %s" % nonempty(l, last)[:-1])
if "BYPASS" not in os.environ:
exitcode = 1
del hits[0]
last = nonempty(l, last)
return exitcode
def readcommit(node):
return os.popen("hg export %s" % node).read()
if __name__ == "__main__":
exitcode = 0
node = os.environ.get("HG_NODE")
if node:
commit = readcommit(node)
exitcode = checkcommit(commit)
elif sys.argv[1:]:
for node in sys.argv[1:]:
exitcode |= checkcommit(readcommit(node), node)
else:
commit = sys.stdin.read()
exitcode = checkcommit(commit)
sys.exit(exitcode)