dispatch: try and identify third-party extensions as sources of tracebacks
Extension authors should explicitly declare their supported hg
versions and include a buglink attribute in their extension. In the
event that a traceback occurs, we'll identify the
least-recently-tested extensionas the most likely source of the defect
and suggest the user disable that extension.
Packagers should make every effort to ship hg versions from exact
tags, or with as few modifications as possible so that the versioning
can work appropriately.
# zeroconf.py - zeroconf support for Mercurial
#
# Copyright 2005-2007 Matt Mackall <mpm@selenic.com>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
'''discover and advertise repositories on the local network
Zeroconf-enabled repositories will be announced in a network without
the need to configure a server or a service. They can be discovered
without knowing their actual IP address.
To allow other people to discover your repository using run
:hg:`serve` in your repository::
$ cd test
$ hg serve
You can discover Zeroconf-enabled repositories by running
:hg:`paths`::
$ hg paths
zc-test = http://example.com:8000/test
'''
import socket, time, os
import Zeroconf
from mercurial import ui, hg, encoding, util, dispatch
from mercurial import extensions
from mercurial.hgweb import hgweb_mod
from mercurial.hgweb import hgwebdir_mod
testedwith = 'internal'
# publish
server = None
localip = None
def getip():
# finds external-facing interface without sending any packets (Linux)
try:
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.connect(('1.0.0.1', 0))
ip = s.getsockname()[0]
return ip
except socket.error:
pass
# Generic method, sometimes gives useless results
try:
dumbip = socket.gethostbyaddr(socket.gethostname())[2][0]
if not dumbip.startswith('127.') and ':' not in dumbip:
return dumbip
except (socket.gaierror, socket.herror):
dumbip = '127.0.0.1'
# works elsewhere, but actually sends a packet
try:
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.connect(('1.0.0.1', 1))
ip = s.getsockname()[0]
return ip
except socket.error:
pass
return dumbip
def publish(name, desc, path, port):
global server, localip
if not server:
ip = getip()
if ip.startswith('127.'):
# if we have no internet connection, this can happen.
return
localip = socket.inet_aton(ip)
server = Zeroconf.Zeroconf(ip)
hostname = socket.gethostname().split('.')[0]
host = hostname + ".local"
name = "%s-%s" % (hostname, name)
# advertise to browsers
svc = Zeroconf.ServiceInfo('_http._tcp.local.',
name + '._http._tcp.local.',
server = host,
port = port,
properties = {'description': desc,
'path': "/" + path},
address = localip, weight = 0, priority = 0)
server.registerService(svc)
# advertise to Mercurial clients
svc = Zeroconf.ServiceInfo('_hg._tcp.local.',
name + '._hg._tcp.local.',
server = host,
port = port,
properties = {'description': desc,
'path': "/" + path},
address = localip, weight = 0, priority = 0)
server.registerService(svc)
class hgwebzc(hgweb_mod.hgweb):
def __init__(self, repo, name=None, baseui=None):
super(hgwebzc, self).__init__(repo, name=name, baseui=baseui)
name = self.reponame or os.path.basename(self.repo.root)
path = self.repo.ui.config("web", "prefix", "").strip('/')
desc = self.repo.ui.config("web", "description", name)
publish(name, desc, path,
util.getport(self.repo.ui.config("web", "port", 8000)))
class hgwebdirzc(hgwebdir_mod.hgwebdir):
def __init__(self, conf, baseui=None):
super(hgwebdirzc, self).__init__(conf, baseui=baseui)
prefix = self.ui.config("web", "prefix", "").strip('/') + '/'
for repo, path in self.repos:
u = self.ui.copy()
u.readconfig(os.path.join(path, '.hg', 'hgrc'))
name = os.path.basename(repo)
path = (prefix + repo).strip('/')
desc = u.config('web', 'description', name)
publish(name, desc, path,
util.getport(u.config("web", "port", 8000)))
# listen
class listener(object):
def __init__(self):
self.found = {}
def removeService(self, server, type, name):
if repr(name) in self.found:
del self.found[repr(name)]
def addService(self, server, type, name):
self.found[repr(name)] = server.getServiceInfo(type, name)
def getzcpaths():
ip = getip()
if ip.startswith('127.'):
return
server = Zeroconf.Zeroconf(ip)
l = listener()
Zeroconf.ServiceBrowser(server, "_hg._tcp.local.", l)
time.sleep(1)
server.close()
for value in l.found.values():
name = value.name[:value.name.index('.')]
url = "http://%s:%s%s" % (socket.inet_ntoa(value.address), value.port,
value.properties.get("path", "/"))
yield "zc-" + name, url
def config(orig, self, section, key, default=None, untrusted=False):
if section == "paths" and key.startswith("zc-"):
for name, path in getzcpaths():
if name == key:
return path
return orig(self, section, key, default, untrusted)
def configitems(orig, self, section, untrusted=False):
repos = orig(self, section, untrusted)
if section == "paths":
repos += getzcpaths()
return repos
def defaultdest(orig, source):
for name, path in getzcpaths():
if path == source:
return name.encode(encoding.encoding)
return orig(source)
def cleanupafterdispatch(orig, ui, options, cmd, cmdfunc):
try:
return orig(ui, options, cmd, cmdfunc)
finally:
# we need to call close() on the server to notify() the various
# threading Conditions and allow the background threads to exit
global server
if server:
server.close()
extensions.wrapfunction(dispatch, '_runcommand', cleanupafterdispatch)
extensions.wrapfunction(ui.ui, 'config', config)
extensions.wrapfunction(ui.ui, 'configitems', configitems)
extensions.wrapfunction(hg, 'defaultdest', defaultdest)
hgweb_mod.hgweb = hgwebzc
hgwebdir_mod.hgwebdir = hgwebdirzc