shelve: fix crash on unshelve without .shelve metadata file
Follow up for c67c94c0e7ae and 38373da1af02.
The inline comment says "we should keep track of the unshelve node in case
we need to reuse it." Perhaps such case isn't tested, and this patch does
NOT add a test for the reuse of the unbundled revision.
Also, I have no idea what should be done if new revision is unbundled
because of "node not in repo".
# 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 . 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(r'_', r'').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, (
"splitattr",
"splitpasswd",
"splitport",
"splituser",
"urlparse",
"urlunparse",
))
urlreq._registeralias(urllib.parse, "parse_qs", "parseqs")
urlreq._registeralias(urllib.parse, "parse_qsl", "parseqsl")
urlreq._registeralias(urllib.parse, "unquote_to_bytes", "unquote")
import urllib.request
urlreq._registeraliases(urllib.request, (
"AbstractHTTPHandler",
"BaseHandler",
"build_opener",
"FileHandler",
"FTPHandler",
"ftpwrapper",
"HTTPHandler",
"HTTPSHandler",
"install_opener",
"pathname2url",
"HTTPBasicAuthHandler",
"HTTPDigestAuthHandler",
"HTTPPasswordMgrWithDefaultRealm",
"ProxyHandler",
"Request",
"url2pathname",
"urlopen",
))
import urllib.response
urlreq._registeraliases(urllib.response, (
"addclosehook",
"addinfourl",
))
import urllib.error
urlerr._registeraliases(urllib.error, (
"HTTPError",
"URLError",
))
import http.server
httpserver._registeraliases(http.server, (
"HTTPServer",
"BaseHTTPRequestHandler",
"SimpleHTTPRequestHandler",
"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=r'/'):
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, (
"addclosehook",
"addinfourl",
"ftpwrapper",
"pathname2url",
"quote",
"splitattr",
"splitpasswd",
"splitport",
"splituser",
"unquote",
"url2pathname",
"urlencode",
))
urlreq._registeraliases(urllib2, (
"AbstractHTTPHandler",
"BaseHandler",
"build_opener",
"FileHandler",
"FTPHandler",
"HTTPBasicAuthHandler",
"HTTPDigestAuthHandler",
"HTTPHandler",
"HTTPPasswordMgrWithDefaultRealm",
"HTTPSHandler",
"install_opener",
"ProxyHandler",
"Request",
"urlopen",
))
urlreq._registeraliases(urlparse, (
"urlparse",
"urlunparse",
))
urlreq._registeralias(urlparse, "parse_qs", "parseqs")
urlreq._registeralias(urlparse, "parse_qsl", "parseqsl")
urlerr._registeraliases(urllib2, (
"HTTPError",
"URLError",
))
httpserver._registeraliases(BaseHTTPServer, (
"HTTPServer",
"BaseHTTPRequestHandler",
))
httpserver._registeraliases(SimpleHTTPServer, (
"SimpleHTTPRequestHandler",
))
httpserver._registeraliases(CGIHTTPServer, (
"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()