view tests/dumbhttp.py @ 28240:1ac8ce137377

changegroup: fix treemanifests on merges

The current code for generating treemanifest revisions takes the list
of files in the changeset and finds the directories from them. This
does not work for merges, since a merge may pick file A from one side
and file B from another and neither of them would appear in the
changeset's "files" list, but the manifest would still change.

Fix this by instead walking the root manifest log for all needed
revisions, storing all needed file and subdirectory revisions, then
recursively visiting the subdirectories. This also turns out to be
faster: cloning a version of hg core converted to treemanifests went
from ~28s to ~19s (timing somewhat unfair: before this patch, timed
until crash; after this patch, timed until manifests complete).

The new algorithm is used only on treemanifest repos. Although it
works equally well on flat manifests, we leave the iteration over
files in the changeset for flat manifests for now.

#!/usr/bin/env python

from __future__ import absolute_import

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

import optparse
import BaseHTTPServer
import signal
import SimpleHTTPServer
import sys

from mercurial import (
    cmdutil,
)

OptionParser = optparse.OptionParser

class simplehttpservice(object):
    def __init__(self, host, port):
        self.address = (host, port)
    def init(self):
        self.httpd = BaseHTTPServer.HTTPServer(
            self.address, SimpleHTTPServer.SimpleHTTPRequestHandler)
    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('--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')

    (options, args) = parser.parse_args()

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

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

    opts = {'pid_file': options.pid,
            'daemon': not options.foreground,
            'daemon_postexec': options.daemon_postexec}
    service = simplehttpservice(options.host, options.port)
    cmdutil.service(opts, initfn=service.init, runfn=service.run,
                    runargs=[sys.executable, __file__] + sys.argv[1:])