Mercurial > hg
view mercurial/urllibcompat.py @ 44667:b561f3a68e41 stable
discovery: avoid wrongly saying there are nothing to pull
We can get in a situation where a revision passed through `hg pull --rev REV`
are available on the server, but not a descendant of the advertised server
heads.
For example the server could lying be during heads advertisement, to hide some
pull request. Or obsolete/hidden content could be explicitly pulled.
So in this case the lookup associated to `REV` returned successfully, but the
normal discovery will find all advertised heads already known locally. This flip
a special boolean `anyinc` that will prevent any fetch attempt, preventing `REV`
to be pulled over.
We add three line of code to detect this case and make sure a pull actually
happens.
My main target is to make some third party extensions happy (I expect the
associated test to move upstream with the extension). However this fix already
make some of the `infinitepush` test happier.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Mon, 06 Apr 2020 00:24:57 +0200 |
parents | 9f70512ae2cf |
children | 89a2afe31e82 |
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# urllibcompat.py - adapters to ease using urllib2 on Py2 and urllib on Py3 # # Copyright 2017 Google, Inc. # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. from __future__ import absolute_import from .pycompat import getattr from . import pycompat _sysstr = pycompat.sysstr class _pycompatstub(object): def __init__(self): self._aliases = {} def _registeraliases(self, origin, items): """Add items that will be populated at the first access""" items = map(_sysstr, items) self._aliases.update( (item.replace('_', '').lower(), (origin, item)) for item in items ) def _registeralias(self, origin, attr, name): """Alias ``origin``.``attr`` as ``name``""" self._aliases[_sysstr(name)] = (origin, _sysstr(attr)) def __getattr__(self, name): try: origin, item = self._aliases[name] except KeyError: raise AttributeError(name) self.__dict__[name] = obj = getattr(origin, item) return obj httpserver = _pycompatstub() urlreq = _pycompatstub() urlerr = _pycompatstub() if pycompat.ispy3: import urllib.parse urlreq._registeraliases( urllib.parse, ( b"splitattr", b"splitpasswd", b"splitport", b"splituser", b"urlparse", b"urlunparse", ), ) urlreq._registeralias(urllib.parse, b"parse_qs", b"parseqs") urlreq._registeralias(urllib.parse, b"parse_qsl", b"parseqsl") urlreq._registeralias(urllib.parse, b"unquote_to_bytes", b"unquote") import urllib.request urlreq._registeraliases( urllib.request, ( b"AbstractHTTPHandler", b"BaseHandler", b"build_opener", b"FileHandler", b"FTPHandler", b"ftpwrapper", b"HTTPHandler", b"HTTPSHandler", b"install_opener", b"pathname2url", b"HTTPBasicAuthHandler", b"HTTPDigestAuthHandler", b"HTTPPasswordMgrWithDefaultRealm", b"ProxyHandler", b"Request", b"url2pathname", b"urlopen", ), ) import urllib.response urlreq._registeraliases(urllib.response, (b"addclosehook", b"addinfourl",)) import urllib.error urlerr._registeraliases(urllib.error, (b"HTTPError", b"URLError",)) import http.server httpserver._registeraliases( http.server, ( b"HTTPServer", b"BaseHTTPRequestHandler", b"SimpleHTTPRequestHandler", b"CGIHTTPRequestHandler", ), ) # urllib.parse.quote() accepts both str and bytes, decodes bytes # (if necessary), and returns str. This is wonky. We provide a custom # implementation that only accepts bytes and emits bytes. def quote(s, safe='/'): # bytestr has an __iter__ that emits characters. quote_from_bytes() # does an iteration and expects ints. We coerce to bytes to appease it. if isinstance(s, pycompat.bytestr): s = bytes(s) s = urllib.parse.quote_from_bytes(s, safe=safe) return s.encode('ascii', 'strict') # urllib.parse.urlencode() returns str. We use this function to make # sure we return bytes. def urlencode(query, doseq=False): s = urllib.parse.urlencode(query, doseq=doseq) return s.encode('ascii') urlreq.quote = quote urlreq.urlencode = urlencode def getfullurl(req): return req.full_url def gethost(req): return req.host def getselector(req): return req.selector def getdata(req): return req.data def hasdata(req): return req.data is not None else: import BaseHTTPServer import CGIHTTPServer import SimpleHTTPServer import urllib2 import urllib import urlparse urlreq._registeraliases( urllib, ( b"addclosehook", b"addinfourl", b"ftpwrapper", b"pathname2url", b"quote", b"splitattr", b"splitpasswd", b"splitport", b"splituser", b"unquote", b"url2pathname", b"urlencode", ), ) urlreq._registeraliases( urllib2, ( b"AbstractHTTPHandler", b"BaseHandler", b"build_opener", b"FileHandler", b"FTPHandler", b"HTTPBasicAuthHandler", b"HTTPDigestAuthHandler", b"HTTPHandler", b"HTTPPasswordMgrWithDefaultRealm", b"HTTPSHandler", b"install_opener", b"ProxyHandler", b"Request", b"urlopen", ), ) urlreq._registeraliases(urlparse, (b"urlparse", b"urlunparse",)) urlreq._registeralias(urlparse, b"parse_qs", b"parseqs") urlreq._registeralias(urlparse, b"parse_qsl", b"parseqsl") urlerr._registeraliases(urllib2, (b"HTTPError", b"URLError",)) httpserver._registeraliases( BaseHTTPServer, (b"HTTPServer", b"BaseHTTPRequestHandler",) ) httpserver._registeraliases( SimpleHTTPServer, (b"SimpleHTTPRequestHandler",) ) httpserver._registeraliases(CGIHTTPServer, (b"CGIHTTPRequestHandler",)) def gethost(req): return req.get_host() def getselector(req): return req.get_selector() def getfullurl(req): return req.get_full_url() def getdata(req): return req.get_data() def hasdata(req): return req.has_data()