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ui: path option to declare which revisions to push by default...

ui: path option to declare which revisions to push by default Now that we have a mechanism for declaring path sub-options, we can start to pile on features! Many power users have expressed frustration that bare `hg push` attempts to push all local revisions to the remote. This patch introduces the "pushrev" path sub-option to control which revisions are pushed when no "-r" argument is specified. The value of this sub-option is a revset, naturally. A future feature addition could potentially introduce a "pushnames" sub-options that declares the list of names (branches, bookmarks, topics, etc) to push by default. The entire "what to push by default" feature should probably be considered before this patch lands.

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      # 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

      try:

          import cPickle as pickle

          pickle.dumps

      except ImportError:

          import pickle

          pickle.dumps # silence pyflakes

      try:

          import cStringIO as io

          stringio = io.StringIO

      except ImportError:

          import io

          stringio = io.StringIO

      try:

          import Queue as _queue

          _queue.Queue

      except ImportError:

          import queue as _queue

      empty = _queue.Empty

      queue = _queue.Queue

      class _pycompatstub(object):

          pass

      def _alias(alias, origin, items):

          """ populate a _pycompatstub

          copies items from origin to alias

          """

          def hgcase(item):

              return item.replace('_', '').lower()

          for item in items:

              try:

                  setattr(alias, hgcase(item), getattr(origin, item))

              except AttributeError:

                  pass

      urlreq = _pycompatstub()

      urlerr = _pycompatstub()

      try:

          import urllib2

          import urllib

          _alias(urlreq, urllib, (

              "addclosehook",

              "addinfourl",

              "ftpwrapper",

              "pathname2url",

              "quote",

              "splitattr",

              "splitpasswd",

              "splitport",

              "splituser",

              "unquote",

              "url2pathname",

              "urlencode",

              "urlencode",

          ))

          _alias(urlreq, urllib2, (

              "AbstractHTTPHandler",

              "BaseHandler",

              "build_opener",

              "FileHandler",

              "FTPHandler",

              "HTTPBasicAuthHandler",

              "HTTPDigestAuthHandler",

              "HTTPHandler",

              "HTTPPasswordMgrWithDefaultRealm",

              "HTTPSHandler",

              "install_opener",

              "ProxyHandler",

              "Request",

              "urlopen",

          ))

          _alias(urlerr, urllib2, (

              "HTTPError",

              "URLError",

          ))

      except ImportError:

          import urllib.request

          _alias(urlreq, urllib.request, (

              "AbstractHTTPHandler",

              "addclosehook",

              "addinfourl",

              "BaseHandler",

              "build_opener",

              "FileHandler",

              "FTPHandler",

              "ftpwrapper",

              "HTTPHandler",

              "HTTPSHandler",

              "install_opener",

              "pathname2url",

              "HTTPBasicAuthHandler",

              "HTTPDigestAuthHandler",

              "ProxyHandler",

              "quote",

              "Request",

              "splitattr",

              "splitpasswd",

              "splitport",

              "splituser",

              "unquote",

              "url2pathname",

              "urlopen",

          ))

          import urllib.error

          _alias(urlerr, urllib.error, (

              "HTTPError",

              "URLError",

          ))

      try:

          xrange

      except NameError:

          import builtins

          builtins.xrange = range

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				# 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

				try:
				import cPickle as pickle
				pickle.dumps
				except ImportError:
				import pickle
				pickle.dumps # silence pyflakes

				try:
				import cStringIO as io
				stringio = io.StringIO
				except ImportError:
				import io
				stringio = io.StringIO

				try:
				import Queue as _queue
				_queue.Queue
				except ImportError:
				import queue as _queue
				empty = _queue.Empty
				queue = _queue.Queue

				class _pycompatstub(object):
				pass

				def _alias(alias, origin, items):
				""" populate a _pycompatstub

				copies items from origin to alias
				"""
				def hgcase(item):
				return item.replace('_', '').lower()
				for item in items:
				try:
				setattr(alias, hgcase(item), getattr(origin, item))
				except AttributeError:
				pass

				urlreq = _pycompatstub()
				urlerr = _pycompatstub()
				try:
				import urllib2
				import urllib
				_alias(urlreq, urllib, (
				"addclosehook",
				"addinfourl",
				"ftpwrapper",
				"pathname2url",
				"quote",
				"splitattr",
				"splitpasswd",
				"splitport",
				"splituser",
				"unquote",
				"url2pathname",
				"urlencode",
				"urlencode",
				))
				_alias(urlreq, urllib2, (
				"AbstractHTTPHandler",
				"BaseHandler",
				"build_opener",
				"FileHandler",
				"FTPHandler",
				"HTTPBasicAuthHandler",
				"HTTPDigestAuthHandler",
				"HTTPHandler",
				"HTTPPasswordMgrWithDefaultRealm",
				"HTTPSHandler",
				"install_opener",
				"ProxyHandler",
				"Request",
				"urlopen",
				))
				_alias(urlerr, urllib2, (
				"HTTPError",
				"URLError",
				))

				except ImportError:
				import urllib.request
				_alias(urlreq, urllib.request, (
				"AbstractHTTPHandler",
				"addclosehook",
				"addinfourl",
				"BaseHandler",
				"build_opener",
				"FileHandler",
				"FTPHandler",
				"ftpwrapper",
				"HTTPHandler",
				"HTTPSHandler",
				"install_opener",
				"pathname2url",
				"HTTPBasicAuthHandler",
				"HTTPDigestAuthHandler",
				"ProxyHandler",
				"quote",
				"Request",
				"splitattr",
				"splitpasswd",
				"splitport",
				"splituser",
				"unquote",
				"url2pathname",
				"urlopen",
				))
				import urllib.error
				_alias(urlerr, urllib.error, (
				"HTTPError",
				"URLError",
				))

				try:
				xrange
				except NameError:
				import builtins
				builtins.xrange = range