Mercurial > hg
view hgext/zeroconf/__init__.py @ 39845:e6d3d39cc1c7
revlog: use proper version comparison during verify
Verify appears to want to compare the changelog's revlog version
number with the version number of filelogs and error if they are
different. But what it was actually doing was comparing the full
32-bit header integer, which contains 2 shorts: 1 for the revlog
version number and 1 for feature flags.
This commit tweaks the verification code so it only looks at the
version number component of the header and emits a warning if they
differ.
The new code is more robust because it accounts for future revlog
version numbers without them needing to be special cased.
Differential Revision: https://phab.mercurial-scm.org/D4704
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Wed, 19 Sep 2018 11:38:05 -0700 |
parents | a6c18628dff1 |
children | fa2071753dc2 |
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# 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 ''' from __future__ import absolute_import import os import socket import time from . import Zeroconf from mercurial import ( dispatch, encoding, extensions, hg, ui as uimod, ) from mercurial.hgweb import ( server as servermod ) # Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for # extensions which SHIP WITH MERCURIAL. Non-mainline extensions should # be specifying the version(s) of Mercurial they are tested with, or # leave the attribute unspecified. testedwith = 'ships-with-hg-core' # 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 ':' in dumbip: dumbip = '127.0.0.1' if not dumbip.startswith('127.'): 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) def zc_create_server(create_server, ui, app): httpd = create_server(ui, app) port = httpd.port try: repos = app.repos except AttributeError: # single repo with app._obtainrepo() as repo: name = app.reponame or os.path.basename(repo.root) path = repo.ui.config("web", "prefix", "").strip('/') desc = repo.ui.config("web", "description") if not desc: desc = name publish(name, desc, path, port) else: # webdir prefix = app.ui.config("web", "prefix", "").strip('/') + '/' for repo, path in repos: u = app.ui.copy() u.readconfig(os.path.join(path, '.hg', 'hgrc')) name = os.path.basename(repo) path = (prefix + repo).strip('/') desc = u.config('web', 'description') if not desc: desc = name publish(name, desc, path, port) return httpd # 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, *args, **kwargs): if section == "paths" and key.startswith("zc-"): for name, path in getzcpaths(): if name == key: return path return orig(self, section, key, *args, **kwargs) def configitems(orig, self, section, *args, **kwargs): repos = orig(self, section, *args, **kwargs) if section == "paths": repos += getzcpaths() return repos def configsuboptions(orig, self, section, name, *args, **kwargs): opt, sub = orig(self, section, name, *args, **kwargs) if section == "paths" and name.startswith("zc-"): # We have to find the URL in the zeroconf paths. We can't cons up any # suboptions, so we use any that we found in the original config. for zcname, zcurl in getzcpaths(): if zcname == name: return zcurl, sub return opt, sub 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(uimod.ui, 'config', config) extensions.wrapfunction(uimod.ui, 'configitems', configitems) extensions.wrapfunction(uimod.ui, 'configsuboptions', configsuboptions) extensions.wrapfunction(hg, 'defaultdest', defaultdest) extensions.wrapfunction(servermod, 'create_server', zc_create_server)