rebase: check for conflicts before continuing
When there are unresolved merge conflicts, there is no reason
to make the user wait for rebase to process all of the
already rebased commits just to complain that it cannot do
anything. Abort early.
# pycompat.py - portability shim for python 3
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
"""Mercurial portability shim for python 3.
This contains aliases to hide python version-specific details from the core.
"""
from __future__ import absolute_import
import sys
ispy3 = (sys.version_info[0] >= 3)
if not ispy3:
import cPickle as pickle
import cStringIO as io
import httplib
import Queue as _queue
import SocketServer as socketserver
import urlparse
import xmlrpclib
else:
import http.client as httplib
import io
import pickle
import queue as _queue
import socketserver
import urllib.parse as urlparse
import xmlrpc.client as xmlrpclib
if ispy3:
import builtins
import functools
import os
fsencode = os.fsencode
def sysstr(s):
"""Return a keyword str to be passed to Python functions such as
getattr() and str.encode()
This never raises UnicodeDecodeError. Non-ascii characters are
considered invalid and mapped to arbitrary but unique code points
such that 'sysstr(a) != sysstr(b)' for all 'a != b'.
"""
if isinstance(s, builtins.str):
return s
return s.decode(u'latin-1')
def _wrapattrfunc(f):
@functools.wraps(f)
def w(object, name, *args):
return f(object, sysstr(name), *args)
return w
# these wrappers are automagically imported by hgloader
delattr = _wrapattrfunc(builtins.delattr)
getattr = _wrapattrfunc(builtins.getattr)
hasattr = _wrapattrfunc(builtins.hasattr)
setattr = _wrapattrfunc(builtins.setattr)
xrange = builtins.range
else:
def sysstr(s):
return s
# Partial backport from os.py in Python 3, which only accepts bytes.
# In Python 2, our paths should only ever be bytes, a unicode path
# indicates a bug.
def fsencode(filename):
if isinstance(filename, str):
return filename
else:
raise TypeError(
"expect str, not %s" % type(filename).__name__)
stringio = io.StringIO
empty = _queue.Empty
queue = _queue.Queue
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(sysstr('_'), sysstr('')).lower(), (origin, item))
for item in items)
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 not ispy3:
import BaseHTTPServer
import CGIHTTPServer
import SimpleHTTPServer
import urllib2
import urllib
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",
))
urlerr._registeraliases(urllib2, (
"HTTPError",
"URLError",
))
httpserver._registeraliases(BaseHTTPServer, (
"HTTPServer",
"BaseHTTPRequestHandler",
))
httpserver._registeraliases(SimpleHTTPServer, (
"SimpleHTTPRequestHandler",
))
httpserver._registeraliases(CGIHTTPServer, (
"CGIHTTPRequestHandler",
))
else:
import urllib.request
urlreq._registeraliases(urllib.request, (
"AbstractHTTPHandler",
"addclosehook",
"addinfourl",
"BaseHandler",
"build_opener",
"FileHandler",
"FTPHandler",
"ftpwrapper",
"HTTPHandler",
"HTTPSHandler",
"install_opener",
"pathname2url",
"HTTPBasicAuthHandler",
"HTTPDigestAuthHandler",
"HTTPPasswordMgrWithDefaultRealm",
"ProxyHandler",
"quote",
"Request",
"splitattr",
"splitpasswd",
"splitport",
"splituser",
"unquote",
"url2pathname",
"urlopen",
))
import urllib.error
urlerr._registeraliases(urllib.error, (
"HTTPError",
"URLError",
))
import http.server
httpserver._registeraliases(http.server, (
"HTTPServer",
"BaseHTTPRequestHandler",
"SimpleHTTPRequestHandler",
"CGIHTTPRequestHandler",
))