view tests/dumbhttp.py @ 39715:d8a7690ccc74

fastannotate: process files as they arrive

peer.commandexecutor()'s context manager waits for all responses to
arrive in its __exit__() method. We want to process the results as
they arrive, so we should do that inside the context manager
scope. Note that the futures' result() methods have been replaced to
make sure that the command executor's sendcommands() method is called
when the first future's result is requested, so we don't need to do
that.

A minor side-effect is that we can no longer easily tell when the
server has started sending us responses, so that long statement was
lost.

Differential Revision: https://phab.mercurial-scm.org/D4666

#!/usr/bin/env python

from __future__ import absolute_import

"""
Small and dumb HTTP server for use in tests.
"""

import optparse
import os
import signal
import socket
import sys

from mercurial import (
    encoding,
    pycompat,
    server,
    util,
)

httpserver = util.httpserver
OptionParser = optparse.OptionParser

if os.environ.get('HGIPV6', '0') == '1':
    class simplehttpserver(httpserver.httpserver):
        address_family = socket.AF_INET6
else:
    simplehttpserver = httpserver.httpserver

class _httprequesthandler(httpserver.simplehttprequesthandler):
    def log_message(self, format, *args):
        httpserver.simplehttprequesthandler.log_message(self, format, *args)
        sys.stderr.flush()

class simplehttpservice(object):
    def __init__(self, host, port):
        self.address = (host, port)
    def init(self):
        self.httpd = simplehttpserver(self.address, _httprequesthandler)
    def run(self):
        self.httpd.serve_forever()

if __name__ == '__main__':
    parser = OptionParser()
    parser.add_option('-p', '--port', dest='port', type='int', default=8000,
        help='TCP port to listen on', metavar='PORT')
    parser.add_option('-H', '--host', dest='host', default='localhost',
        help='hostname or IP to listen on', metavar='HOST')
    parser.add_option('--logfile', help='file name of access/error log')
    parser.add_option('--pid', dest='pid',
        help='file name where the PID of the server is stored')
    parser.add_option('-f', '--foreground', dest='foreground',
        action='store_true',
        help='do not start the HTTP server in the background')
    parser.add_option('--daemon-postexec', action='append')

    (options, args) = parser.parse_args()

    signal.signal(signal.SIGTERM, lambda x, y: sys.exit(0))

    if options.foreground and options.logfile:
        parser.error("options --logfile and --foreground are mutually "
                     "exclusive")
    if options.foreground and options.pid:
        parser.error("options --pid and --foreground are mutually exclusive")

    opts = {b'pid_file': options.pid,
            b'daemon': not options.foreground,
            b'daemon_postexec': pycompat.rapply(encoding.strtolocal,
                                                options.daemon_postexec)}
    service = simplehttpservice(options.host, options.port)
    runargs = [sys.executable, __file__] + sys.argv[1:]
    runargs = [pycompat.fsencode(a) for a in runargs]
    server.runservice(opts, initfn=service.init, runfn=service.run,
                      logfile=options.logfile,
                      runargs=runargs)