view tests/dumbhttp.py @ 41289:593f6359681d

update: fix edge-case with update.atomic-file and read-only files

We used to create the tempfile with the original file mode. That means
creating a read-only tempfile when the original file is read-only, which crash
if we need to write on the tempfile.

The file in the working directory ends up being writable with and without the
atomic update config, so the behavior is the same.

#!/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)