shithub: drawterm

diff: cannot open a/lib/codereview//null: file does not exist: 'a/lib/codereview//null' diff: cannot open a/lib//null: file does not exist: 'a/lib//null'

--- a/lib/codereview/codereview.cfg

+++ /dev/null

@@ -1,1 +1,0 @@

-# defaultcc: plan9port-dev@googlegroups.com

--- a/lib/codereview/codereview.py

+++ /dev/null

@@ -1,3562 +1,0 @@

-# coding=utf-8

-# (The line above is necessary so that I can use 世界 in the

-# *comment* below without Python getting all bent out of shape.)

-# Copyright 2007-2009 Google Inc.

-#

-# Licensed under the Apache License, Version 2.0 (the "License");

-# you may not use this file except in compliance with the License.

-# You may obtain a copy of the License at

-#

-#	http://www.apache.org/licenses/LICENSE-2.0

-#

-# Unless required by applicable law or agreed to in writing, software

-# distributed under the License is distributed on an "AS IS" BASIS,

-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

-# See the License for the specific language governing permissions and

-# limitations under the License.

-'''Mercurial interface to codereview.appspot.com.

-To configure, set the following options in

-your repository's .hg/hgrc file.

-	[extensions]

-	codereview = /path/to/codereview.py

-	[codereview]

-	server = codereview.appspot.com

-The server should be running Rietveld; see http://code.google.com/p/rietveld/.

-In addition to the new commands, this extension introduces

-the file pattern syntax @nnnnnn, where nnnnnn is a change list

-number, to mean the files included in that change list, which

-must be associated with the current client.

-For example, if change 123456 contains the files x.go and y.go,

-"hg diff @123456" is equivalent to"hg diff x.go y.go".

-'''

-import sys

-if __name__ == "__main__":

-	print >>sys.stderr, "This is a Mercurial extension and should not be invoked directly."

-	sys.exit(2)

-# We require Python 2.6 for the json package.

-if sys.version < '2.6':

-	print >>sys.stderr, "The codereview extension requires Python 2.6 or newer."

-	print >>sys.stderr, "You are running Python " + sys.version

-	sys.exit(2)

-import json

-import os

-import re

-import stat

-import subprocess

-import threading

-import time

-from mercurial import commands as hg_commands

-from mercurial import util as hg_util

-defaultcc = None

-codereview_disabled = None

-real_rollback = None

-releaseBranch = None

-server = "codereview.appspot.com"

-server_url_base = None

-#######################################################################

-# Normally I would split this into multiple files, but it simplifies

-# import path headaches to keep it all in one file.  Sorry.

-# The different parts of the file are separated by banners like this one.

-#######################################################################

-# Helpers

-def RelativePath(path, cwd):

-	n = len(cwd)

-	if path.startswith(cwd) and path[n] == '/':

-		return path[n+1:]

-	return path

-def Sub(l1, l2):

-	return [l for l in l1 if l not in l2]

-def Add(l1, l2):

-	l = l1 + Sub(l2, l1)

-	l.sort()

-	return l

-def Intersect(l1, l2):

-	return [l for l in l1 if l in l2]

-#######################################################################

-# RE: UNICODE STRING HANDLING

-#

-# Python distinguishes between the str (string of bytes)

-# and unicode (string of code points) types.  Most operations

-# work on either one just fine, but some (like regexp matching)

-# require unicode, and others (like write) require str.

-#

-# As befits the language, Python hides the distinction between

-# unicode and str by converting between them silently, but

-# *only* if all the bytes/code points involved are 7-bit ASCII.

-# This means that if you're not careful, your program works

-# fine on "hello, world" and fails on "hello, 世界".  And of course,

-# the obvious way to be careful - use static types - is unavailable.

-# So the only way is trial and error to find where to put explicit

-# conversions.

-#

-# Because more functions do implicit conversion to str (string of bytes)

-# than do implicit conversion to unicode (string of code points),

-# the convention in this module is to represent all text as str,

-# converting to unicode only when calling a unicode-only function

-# and then converting back to str as soon as possible.

-def typecheck(s, t):

-	if type(s) != t:

-		raise hg_util.Abort("type check failed: %s has type %s != %s" % (repr(s), type(s), t))

-# If we have to pass unicode instead of str, ustr does that conversion clearly.

-def ustr(s):

-	typecheck(s, str)

-	return s.decode("utf-8")

-# Even with those, Mercurial still sometimes turns unicode into str

-# and then tries to use it as ascii.  Change Mercurial's default.

-def set_mercurial_encoding_to_utf8():

-	from mercurial import encoding

-	encoding.encoding = 'utf-8'

-set_mercurial_encoding_to_utf8()

-# Even with those we still run into problems.

-# I tried to do things by the book but could not convince

-# Mercurial to let me check in a change with UTF-8 in the

-# CL description or author field, no matter how many conversions

-# between str and unicode I inserted and despite changing the

-# default encoding.  I'm tired of this game, so set the default

-# encoding for all of Python to 'utf-8', not 'ascii'.

-def default_to_utf8():

-	import sys

-	stdout, __stdout__ = sys.stdout, sys.__stdout__

-	reload(sys)  # site.py deleted setdefaultencoding; get it back

-	sys.stdout, sys.__stdout__ = stdout, __stdout__

-	sys.setdefaultencoding('utf-8')

-default_to_utf8()

-#######################################################################

-# Status printer for long-running commands

-global_status = None

-def set_status(s):

-	# print >>sys.stderr, "\t", time.asctime(), s

-	global global_status

-	global_status = s

-class StatusThread(threading.Thread):

-	def __init__(self):

-		threading.Thread.__init__(self)

-	def run(self):

-		# pause a reasonable amount of time before

-		# starting to display status messages, so that

-		# most hg commands won't ever see them.

-		time.sleep(30)

-		# now show status every 15 seconds

-		while True:

-			time.sleep(15 - time.time() % 15)

-			s = global_status

-			if s is None:

-				continue

-			if s == "":

-				s = "(unknown status)"

-			print >>sys.stderr, time.asctime(), s

-def start_status_thread():

-	t = StatusThread()

-	t.setDaemon(True)  # allowed to exit if t is still running

-	t.start()

-#######################################################################

-# Change list parsing.

-#

-# Change lists are stored in .hg/codereview/cl.nnnnnn

-# where nnnnnn is the number assigned by the code review server.

-# Most data about a change list is stored on the code review server

-# too: the description, reviewer, and cc list are all stored there.

-# The only thing in the cl.nnnnnn file is the list of relevant files.

-# Also, the existence of the cl.nnnnnn file marks this repository

-# as the one where the change list lives.

-emptydiff = """Index: ~rietveld~placeholder~

-===================================================================

-diff --git a/~rietveld~placeholder~ b/~rietveld~placeholder~

-new file mode 100644

-"""

-class CL(object):

-	def __init__(self, name):

-		typecheck(name, str)

-		self.name = name

-		self.desc = ''

-		self.files = []

-		self.reviewer = []

-		self.cc = []

-		self.url = ''

-		self.local = False

-		self.web = False

-		self.copied_from = None	# None means current user

-		self.mailed = False

-		self.private = False

-		self.lgtm = []

-	def DiskText(self):

-		cl = self

-		s = ""

-		if cl.copied_from:

-			s += "Author: " + cl.copied_from + "\n\n"

-		if cl.private:

-			s += "Private: " + str(self.private) + "\n"

-		s += "Mailed: " + str(self.mailed) + "\n"

-		s += "Description:\n"

-		s += Indent(cl.desc, "\t")

-		s += "Files:\n"

-		for f in cl.files:

-			s += "\t" + f + "\n"

-		typecheck(s, str)

-		return s

-	def EditorText(self):

-		cl = self

-		s = _change_prolog

-		s += "\n"

-		if cl.copied_from:

-			s += "Author: " + cl.copied_from + "\n"

-		if cl.url != '':

-			s += 'URL: ' + cl.url + '	# cannot edit\n\n'

-		if cl.private:

-			s += "Private: True\n"

-		s += "Reviewer: " + JoinComma(cl.reviewer) + "\n"

-		s += "CC: " + JoinComma(cl.cc) + "\n"

-		s += "\n"

-		s += "Description:\n"

-		if cl.desc == '':

-			s += "\t<enter description here>\n"

-		else:

-			s += Indent(cl.desc, "\t")

-		s += "\n"

-		if cl.local or cl.name == "new":

-			s += "Files:\n"

-			for f in cl.files:

-				s += "\t" + f + "\n"

-			s += "\n"

-		typecheck(s, str)

-		return s

-	def PendingText(self, quick=False):

-		cl = self

-		s = cl.name + ":" + "\n"

-		s += Indent(cl.desc, "\t")

-		s += "\n"

-		if cl.copied_from:

-			s += "\tAuthor: " + cl.copied_from + "\n"

-		if not quick:

-			s += "\tReviewer: " + JoinComma(cl.reviewer) + "\n"

-			for (who, line) in cl.lgtm:

-				s += "\t\t" + who + ": " + line + "\n"

-			s += "\tCC: " + JoinComma(cl.cc) + "\n"

-		s += "\tFiles:\n"

-		for f in cl.files:

-			s += "\t\t" + f + "\n"

-		typecheck(s, str)

-		return s

-	def Flush(self, ui, repo):

-		if self.name == "new":

-			self.Upload(ui, repo, gofmt_just_warn=True, creating=True)

-		dir = CodeReviewDir(ui, repo)

-		path = dir + '/cl.' + self.name

-		f = open(path+'!', "w")

-		f.write(self.DiskText())

-		f.close()

-		if sys.platform == "win32" and os.path.isfile(path):

-			os.remove(path)

-		os.rename(path+'!', path)

-		if self.web and not self.copied_from:

-			EditDesc(self.name, desc=self.desc,

-				reviewers=JoinComma(self.reviewer), cc=JoinComma(self.cc),

-				private=self.private)

-	def Delete(self, ui, repo):

-		dir = CodeReviewDir(ui, repo)

-		os.unlink(dir + "/cl." + self.name)

-	def Subject(self):

-		s = line1(self.desc)

-		if len(s) > 60:

-			s = s[0:55] + "..."

-		if self.name != "new":

-			s = "code review %s: %s" % (self.name, s)

-		typecheck(s, str)

-		return s

-	def Upload(self, ui, repo, send_mail=False, gofmt=True, gofmt_just_warn=False, creating=False, quiet=False):

-		if not self.files and not creating:

-			ui.warn("no files in change list\n")

-		if ui.configbool("codereview", "force_gofmt", True) and gofmt:

-			CheckFormat(ui, repo, self.files, just_warn=gofmt_just_warn)

-		set_status("uploading CL metadata + diffs")

-		os.chdir(repo.root)

-		form_fields = [

-			("content_upload", "1"),

-			("reviewers", JoinComma(self.reviewer)),

-			("cc", JoinComma(self.cc)),

-			("description", self.desc),

-			("base_hashes", ""),

-		]

-		if self.name != "new":

-			form_fields.append(("issue", self.name))

-		vcs = None

-		# We do not include files when creating the issue,

-		# because we want the patch sets to record the repository

-		# and base revision they are diffs against.  We use the patch

-		# set message for that purpose, but there is no message with

-		# the first patch set.  Instead the message gets used as the

-		# new CL's overall subject.  So omit the diffs when creating

-		# and then we'll run an immediate upload.

-		# This has the effect that every CL begins with an empty "Patch set 1".

-		if self.files and not creating:

-			vcs = MercurialVCS(upload_options, ui, repo)

-			data = vcs.GenerateDiff(self.files)

-			files = vcs.GetBaseFiles(data)

-			if len(data) > MAX_UPLOAD_SIZE:

-				uploaded_diff_file = []

-				form_fields.append(("separate_patches", "1"))

-			else:

-				uploaded_diff_file = [("data", "data.diff", data)]

-		else:

-			uploaded_diff_file = [("data", "data.diff", emptydiff)]

-		if vcs and self.name != "new":

-			form_fields.append(("subject", "diff -r " + vcs.base_rev + " " + ui.expandpath("default")))

-		else:

-			# First upload sets the subject for the CL itself.

-			form_fields.append(("subject", self.Subject()))

-		ctype, body = EncodeMultipartFormData(form_fields, uploaded_diff_file)

-		response_body = MySend("/upload", body, content_type=ctype)

-		patchset = None

-		msg = response_body

-		lines = msg.splitlines()

-		if len(lines) >= 2:

-			msg = lines[0]

-			patchset = lines[1].strip()

-			patches = [x.split(" ", 1) for x in lines[2:]]

-		if response_body.startswith("Issue updated.") and quiet:

-			pass

-		else:

-			ui.status(msg + "\n")

-		set_status("uploaded CL metadata + diffs")

-		if not response_body.startswith("Issue created.") and not response_body.startswith("Issue updated."):

-			raise hg_util.Abort("failed to update issue: " + response_body)

-		issue = msg[msg.rfind("/")+1:]

-		self.name = issue

-		if not self.url:

-			self.url = server_url_base + self.name

-		if not uploaded_diff_file:

-			set_status("uploading patches")

-			patches = UploadSeparatePatches(issue, rpc, patchset, data, upload_options)

-		if vcs:

-			set_status("uploading base files")

-			vcs.UploadBaseFiles(issue, rpc, patches, patchset, upload_options, files)

-		if send_mail:

-			set_status("sending mail")

-			MySend("/" + issue + "/mail", payload="")

-		self.web = True

-		set_status("flushing changes to disk")

-		self.Flush(ui, repo)

-		return

-	def Mail(self, ui, repo):

-		pmsg = "Hello " + JoinComma(self.reviewer)

-		if self.cc:

-			pmsg += " (cc: %s)" % (', '.join(self.cc),)

-		pmsg += ",\n"

-		pmsg += "\n"

-		repourl = ui.expandpath("default")

-		if not self.mailed:

-			pmsg += "I'd like you to review this change to\n" + repourl + "\n"

-		else:

-			pmsg += "Please take another look.\n"

-		typecheck(pmsg, str)

-		PostMessage(ui, self.name, pmsg, subject=self.Subject())

-		self.mailed = True

-		self.Flush(ui, repo)

-def GoodCLName(name):

-	typecheck(name, str)

-	return re.match("^[0-9]+$", name)

-def ParseCL(text, name):

-	typecheck(text, str)

-	typecheck(name, str)

-	sname = None

-	lineno = 0

-	sections = {

-		'Author': '',

-		'Description': '',

-		'Files': '',

-		'URL': '',

-		'Reviewer': '',

-		'CC': '',

-		'Mailed': '',

-		'Private': '',

-	}

-	for line in text.split('\n'):

-		lineno += 1

-		line = line.rstrip()

-		if line != '' and line[0] == '#':

-			continue

-		if line == '' or line[0] == ' ' or line[0] == '\t':

-			if sname == None and line != '':

-				return None, lineno, 'text outside section'

-			if sname != None:

-				sections[sname] += line + '\n'

-			continue

-		p = line.find(':')

-		if p >= 0:

-			s, val = line[:p].strip(), line[p+1:].strip()

-			if s in sections:

-				sname = s

-				if val != '':

-					sections[sname] += val + '\n'

-				continue

-		return None, lineno, 'malformed section header'

-	for k in sections:

-		sections[k] = StripCommon(sections[k]).rstrip()

-	cl = CL(name)

-	if sections['Author']:

-		cl.copied_from = sections['Author']

-	cl.desc = sections['Description']

-	for line in sections['Files'].split('\n'):

-		i = line.find('#')

-		if i >= 0:

-			line = line[0:i].rstrip()

-		line = line.strip()

-		if line == '':

-			continue

-		cl.files.append(line)

-	cl.reviewer = SplitCommaSpace(sections['Reviewer'])

-	cl.cc = SplitCommaSpace(sections['CC'])

-	cl.url = sections['URL']

-	if sections['Mailed'] != 'False':

-		# Odd default, but avoids spurious mailings when

-		# reading old CLs that do not have a Mailed: line.

-		# CLs created with this update will always have

-		# Mailed: False on disk.

-		cl.mailed = True

-	if sections['Private'] in ('True', 'true', 'Yes', 'yes'):

-		cl.private = True

-	if cl.desc == '<enter description here>':

-		cl.desc = ''

-	return cl, 0, ''

-def SplitCommaSpace(s):

-	typecheck(s, str)

-	s = s.strip()

-	if s == "":

-		return []

-	return re.split(", *", s)

-def CutDomain(s):

-	typecheck(s, str)

-	i = s.find('@')

-	if i >= 0:

-		s = s[0:i]

-	return s

-def JoinComma(l):

-	for s in l:

-		typecheck(s, str)

-	return ", ".join(l)

-def ExceptionDetail():

-	s = str(sys.exc_info()[0])

-	if s.startswith("<type '") and s.endswith("'>"):

-		s = s[7:-2]

-	elif s.startswith("<class '") and s.endswith("'>"):

-		s = s[8:-2]

-	arg = str(sys.exc_info()[1])

-	if len(arg) > 0:

-		s += ": " + arg

-	return s

-def IsLocalCL(ui, repo, name):

-	return GoodCLName(name) and os.access(CodeReviewDir(ui, repo) + "/cl." + name, 0)

-# Load CL from disk and/or the web.

-def LoadCL(ui, repo, name, web=True):

-	typecheck(name, str)

-	set_status("loading CL " + name)

-	if not GoodCLName(name):

-		return None, "invalid CL name"

-	dir = CodeReviewDir(ui, repo)

-	path = dir + "cl." + name

-	if os.access(path, 0):

-		ff = open(path)

-		text = ff.read()

-		ff.close()

-		cl, lineno, err = ParseCL(text, name)

-		if err != "":

-			return None, "malformed CL data: "+err

-		cl.local = True

-	else:

-		cl = CL(name)

-	if web:

-		set_status("getting issue metadata from web")

-		d = JSONGet(ui, "/api/" + name + "?messages=true")

-		set_status(None)

-		if d is None:

-			return None, "cannot load CL %s from server" % (name,)

-		if 'owner_email' not in d or 'issue' not in d or str(d['issue']) != name:

-			return None, "malformed response loading CL data from code review server"

-		cl.dict = d

-		cl.reviewer = d.get('reviewers', [])

-		cl.cc = d.get('cc', [])

-		if cl.local and cl.copied_from and cl.desc:

-			# local copy of CL written by someone else

-			# and we saved a description.  use that one,

-			# so that committers can edit the description

-			# before doing hg submit.

-			pass

-		else:

-			cl.desc = d.get('description', "")

-		cl.url = server_url_base + name

-		cl.web = True

-		cl.private = d.get('private', False) != False

-		cl.lgtm = []

-		for m in d.get('messages', []):

-			if m.get('approval', False) == True:

-				who = re.sub('@.*', '', m.get('sender', ''))

-				text = re.sub("\n(.|\n)*", '', m.get('text', ''))

-				cl.lgtm.append((who, text))

-	set_status("loaded CL " + name)

-	return cl, ''

-class LoadCLThread(threading.Thread):

-	def __init__(self, ui, repo, dir, f, web):

-		threading.Thread.__init__(self)

-		self.ui = ui

-		self.repo = repo

-		self.dir = dir

-		self.f = f

-		self.web = web

-		self.cl = None

-	def run(self):

-		cl, err = LoadCL(self.ui, self.repo, self.f[3:], web=self.web)

-		if err != '':

-			self.ui.warn("loading "+self.dir+self.f+": " + err + "\n")

-			return

-		self.cl = cl

-# Load all the CLs from this repository.

-def LoadAllCL(ui, repo, web=True):

-	dir = CodeReviewDir(ui, repo)

-	m = {}

-	files = [f for f in os.listdir(dir) if f.startswith('cl.')]

-	if not files:

-		return m

-	active = []

-	first = True

-	for f in files:

-		t = LoadCLThread(ui, repo, dir, f, web)

-		t.start()

-		if web and first:

-			# first request: wait in case it needs to authenticate

-			# otherwise we get lots of user/password prompts

-			# running in parallel.

-			t.join()

-			if t.cl:

-				m[t.cl.name] = t.cl

-			first = False

-		else:

-			active.append(t)

-	for t in active:

-		t.join()

-		if t.cl:

-			m[t.cl.name] = t.cl

-	return m

-# Find repository root.  On error, ui.warn and return None

-def RepoDir(ui, repo):

-	url = repo.url();

-	if not url.startswith('file:'):

-		ui.warn("repository %s is not in local file system\n" % (url,))

-		return None

-	url = url[5:]

-	if url.endswith('/'):

-		url = url[:-1]

-	typecheck(url, str)

-	return url

-# Find (or make) code review directory.  On error, ui.warn and return None

-def CodeReviewDir(ui, repo):

-	dir = RepoDir(ui, repo)

-	if dir == None:

-		return None

-	dir += '/.hg/codereview/'

-	if not os.path.isdir(dir):

-		try:

-			os.mkdir(dir, 0700)

-		except:

-			ui.warn('cannot mkdir %s: %s\n' % (dir, ExceptionDetail()))

-			return None

-	typecheck(dir, str)

-	return dir

-# Turn leading tabs into spaces, so that the common white space

-# prefix doesn't get confused when people's editors write out

-# some lines with spaces, some with tabs.  Only a heuristic

-# (some editors don't use 8 spaces either) but a useful one.

-def TabsToSpaces(line):

-	i = 0

-	while i < len(line) and line[i] == '\t':

-		i += 1

-	return ' '*(8*i) + line[i:]

-# Strip maximal common leading white space prefix from text

-def StripCommon(text):

-	typecheck(text, str)

-	ws = None

-	for line in text.split('\n'):

-		line = line.rstrip()

-		if line == '':

-			continue

-		line = TabsToSpaces(line)

-		white = line[:len(line)-len(line.lstrip())]

-		if ws == None:

-			ws = white

-		else:

-			common = ''

-			for i in range(min(len(white), len(ws))+1):

-				if white[0:i] == ws[0:i]:

-					common = white[0:i]

-			ws = common

-		if ws == '':

-			break

-	if ws == None:

-		return text

-	t = ''

-	for line in text.split('\n'):

-		line = line.rstrip()

-		line = TabsToSpaces(line)

-		if line.startswith(ws):

-			line = line[len(ws):]

-		if line == '' and t == '':

-			continue

-		t += line + '\n'

-	while len(t) >= 2 and t[-2:] == '\n\n':

-		t = t[:-1]

-	typecheck(t, str)

-	return t

-# Indent text with indent.

-def Indent(text, indent):

-	typecheck(text, str)

-	typecheck(indent, str)

-	t = ''

-	for line in text.split('\n'):

-		t += indent + line + '\n'

-	typecheck(t, str)

-	return t

-# Return the first line of l

-def line1(text):

-	typecheck(text, str)

-	return text.split('\n')[0]

-_change_prolog = """# Change list.

-# Lines beginning with # are ignored.

-# Multi-line values should be indented.

-"""

-desc_re = '^(.+: |(tag )?(release|weekly)\.|fix build|undo CL)'

-desc_msg = '''Your CL description appears not to use the standard form.

-The first line of your change description is conventionally a

-one-line summary of the change, prefixed by the primary affected package,

-and is used as the subject for code review mail; the rest of the description

-elaborates.

-Examples:

-	encoding/rot13: new package

-	math: add IsInf, IsNaN

-	net: fix cname in LookupHost

-	unicode: update to Unicode 5.0.2

-'''

-def promptyesno(ui, msg):

-	return ui.promptchoice(msg, ["&yes", "&no"], 0) == 0

-def promptremove(ui, repo, f):

-	if promptyesno(ui, "hg remove %s (y/n)?" % (f,)):

-		if hg_commands.remove(ui, repo, 'path:'+f) != 0:

-			ui.warn("error removing %s" % (f,))

-def promptadd(ui, repo, f):

-	if promptyesno(ui, "hg add %s (y/n)?" % (f,)):

-		if hg_commands.add(ui, repo, 'path:'+f) != 0:

-			ui.warn("error adding %s" % (f,))

-def EditCL(ui, repo, cl):

-	set_status(None)	# do not show status

-	s = cl.EditorText()

-	while True:

-		s = ui.edit(s, ui.username())

-		# We can't trust Mercurial + Python not to die before making the change,

-		# so, by popular demand, just scribble the most recent CL edit into

-		# $(hg root)/last-change so that if Mercurial does die, people

-		# can look there for their work.

-		try:

-			f = open(repo.root+"/last-change", "w")

-			f.write(s)

-			f.close()

-		except:

-			pass

-		clx, line, err = ParseCL(s, cl.name)

-		if err != '':

-			if not promptyesno(ui, "error parsing change list: line %d: %s\nre-edit (y/n)?" % (line, err)):

-				return "change list not modified"

-			continue

-		# Check description.

-		if clx.desc == '':

-			if promptyesno(ui, "change list should have a description\nre-edit (y/n)?"):

-				continue

-		elif re.search('<enter reason for undo>', clx.desc):

-			if promptyesno(ui, "change list description omits reason for undo\nre-edit (y/n)?"):

-				continue

-		elif not re.match(desc_re, clx.desc.split('\n')[0]):

-			if promptyesno(ui, desc_msg + "re-edit (y/n)?"):

-				continue

-		# Check file list for files that need to be hg added or hg removed

-		# or simply aren't understood.

-		pats = ['path:'+f for f in clx.files]

-		changed = hg_matchPattern(ui, repo, *pats, modified=True, added=True, removed=True)

-		deleted = hg_matchPattern(ui, repo, *pats, deleted=True)

-		unknown = hg_matchPattern(ui, repo, *pats, unknown=True)

-		ignored = hg_matchPattern(ui, repo, *pats, ignored=True)

-		clean = hg_matchPattern(ui, repo, *pats, clean=True)

-		files = []

-		for f in clx.files:

-			if f in changed:

-				files.append(f)

-				continue

-			if f in deleted:

-				promptremove(ui, repo, f)

-				files.append(f)

-				continue

-			if f in unknown:

-				promptadd(ui, repo, f)

-				files.append(f)

-				continue

-			if f in ignored:

-				ui.warn("error: %s is excluded by .hgignore; omitting\n" % (f,))

-				continue

-			if f in clean:

-				ui.warn("warning: %s is listed in the CL but unchanged\n" % (f,))

-				files.append(f)

-				continue

-			p = repo.root + '/' + f

-			if os.path.isfile(p):

-				ui.warn("warning: %s is a file but not known to hg\n" % (f,))

-				files.append(f)

-				continue

-			if os.path.isdir(p):

-				ui.warn("error: %s is a directory, not a file; omitting\n" % (f,))

-				continue

-			ui.warn("error: %s does not exist; omitting\n" % (f,))

-		clx.files = files

-		cl.desc = clx.desc

-		cl.reviewer = clx.reviewer

-		cl.cc = clx.cc

-		cl.files = clx.files

-		cl.private = clx.private

-		break

-	return ""

-# For use by submit, etc. (NOT by change)

-# Get change list number or list of files from command line.

-# If files are given, make a new change list.

-def CommandLineCL(ui, repo, pats, opts, defaultcc=None):

-	if len(pats) > 0 and GoodCLName(pats[0]):

-		if len(pats) != 1:

-			return None, "cannot specify change number and file names"

-		if opts.get('message'):

-			return None, "cannot use -m with existing CL"

-		cl, err = LoadCL(ui, repo, pats[0], web=True)

-		if err != "":

-			return None, err

-	else:

-		cl = CL("new")

-		cl.local = True

-		cl.files = ChangedFiles(ui, repo, pats, taken=Taken(ui, repo))

-		if not cl.files:

-			return None, "no files changed"

-	if opts.get('reviewer'):

-		cl.reviewer = Add(cl.reviewer, SplitCommaSpace(opts.get('reviewer')))

-	if opts.get('cc'):

-		cl.cc = Add(cl.cc, SplitCommaSpace(opts.get('cc')))

-	if defaultcc:

-		cl.cc = Add(cl.cc, defaultcc)

-	if cl.name == "new":

-		if opts.get('message'):

-			cl.desc = opts.get('message')

-		else:

-			err = EditCL(ui, repo, cl)

-			if err != '':

-				return None, err

-	return cl, ""

-#######################################################################

-# Change list file management

-# Return list of changed files in repository that match pats.

-# The patterns came from the command line, so we warn

-# if they have no effect or cannot be understood.

-def ChangedFiles(ui, repo, pats, taken=None):

-	taken = taken or {}

-	# Run each pattern separately so that we can warn about

-	# patterns that didn't do anything useful.

-	for p in pats:

-		for f in hg_matchPattern(ui, repo, p, unknown=True):

-			promptadd(ui, repo, f)

-		for f in hg_matchPattern(ui, repo, p, removed=True):

-			promptremove(ui, repo, f)

-		files = hg_matchPattern(ui, repo, p, modified=True, added=True, removed=True)

-		for f in files:

-			if f in taken:

-				ui.warn("warning: %s already in CL %s\n" % (f, taken[f].name))

-		if not files:

-			ui.warn("warning: %s did not match any modified files\n" % (p,))

-	# Again, all at once (eliminates duplicates)

-	l = hg_matchPattern(ui, repo, *pats, modified=True, added=True, removed=True)

-	l.sort()

-	if taken:

-		l = Sub(l, taken.keys())

-	return l

-# Return list of changed files in repository that match pats and still exist.

-def ChangedExistingFiles(ui, repo, pats, opts):

-	l = hg_matchPattern(ui, repo, *pats, modified=True, added=True)

-	l.sort()

-	return l

-# Return list of files claimed by existing CLs

-def Taken(ui, repo):

-	all = LoadAllCL(ui, repo, web=False)

-	taken = {}

-	for _, cl in all.items():

-		for f in cl.files:

-			taken[f] = cl

-	return taken

-# Return list of changed files that are not claimed by other CLs

-def DefaultFiles(ui, repo, pats):

-	return ChangedFiles(ui, repo, pats, taken=Taken(ui, repo))

-#######################################################################

-# File format checking.

-def CheckFormat(ui, repo, files, just_warn=False):

-	set_status("running gofmt")

-	CheckGofmt(ui, repo, files, just_warn)

-	CheckTabfmt(ui, repo, files, just_warn)

-# Check that gofmt run on the list of files does not change them

-def CheckGofmt(ui, repo, files, just_warn):

-	files = gofmt_required(files)

-	if not files:

-		return

-	cwd = os.getcwd()

-	files = [RelativePath(repo.root + '/' + f, cwd) for f in files]

-	files = [f for f in files if os.access(f, 0)]

-	if not files:

-		return

-	try:

-		cmd = subprocess.Popen(["gofmt", "-l"] + files, shell=False, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, close_fds=sys.platform != "win32")

-		cmd.stdin.close()

-	except:

-		raise hg_util.Abort("gofmt: " + ExceptionDetail())

-	data = cmd.stdout.read()

-	errors = cmd.stderr.read()

-	cmd.wait()

-	set_status("done with gofmt")

-	if len(errors) > 0:

-		ui.warn("gofmt errors:\n" + errors.rstrip() + "\n")

-		return

-	if len(data) > 0:

-		msg = "gofmt needs to format these files (run hg gofmt):\n" + Indent(data, "\t").rstrip()

-		if just_warn:

-			ui.warn("warning: " + msg + "\n")

-		else:

-			raise hg_util.Abort(msg)

-	return

-# Check that *.[chys] files indent using tabs.

-def CheckTabfmt(ui, repo, files, just_warn):

-	files = [f for f in files if f.startswith('src/') and re.search(r"\.[chys]$", f) and not re.search(r"\.tab\.[ch]$", f)]

-	if not files:

-		return

-	cwd = os.getcwd()

-	files = [RelativePath(repo.root + '/' + f, cwd) for f in files]

-	files = [f for f in files if os.access(f, 0)]

-	badfiles = []

-	for f in files:

-		try:

-			for line in open(f, 'r'):

-				# Four leading spaces is enough to complain about,

-				# except that some Plan 9 code uses four spaces as the label indent,

-				# so allow that.

-				if line.startswith('    ') and not re.match('    [A-Za-z0-9_]+:', line):

-					badfiles.append(f)

-					break

-		except:

-			# ignore cannot open file, etc.

-			pass

-	if len(badfiles) > 0:

-		msg = "these files use spaces for indentation (use tabs instead):\n\t" + "\n\t".join(badfiles)

-		if just_warn:

-			ui.warn("warning: " + msg + "\n")

-		else:

-			raise hg_util.Abort(msg)

-	return

-#######################################################################

-# CONTRIBUTORS file parsing

-contributorsCache = None

-contributorsURL = None

-def ReadContributors(ui, repo):

-	global contributorsCache

-	if contributorsCache is not None:

-		return contributorsCache

-	try:

-		if contributorsURL is not None:

-			opening = contributorsURL

-			f = urllib2.urlopen(contributorsURL)

-		else:

-			opening = repo.root + '/CONTRIBUTORS'

-			f = open(repo.root + '/CONTRIBUTORS', 'r')

-	except:

-		ui.write("warning: cannot open %s: %s\n" % (opening, ExceptionDetail()))

-		return

-	contributors = {}

-	for line in f:

-		# CONTRIBUTORS is a list of lines like:

-		#	Person <email>

-		#	Person <email> <alt-email>

-		# The first email address is the one used in commit logs.

-		if line.startswith('#'):

-			continue

-		m = re.match(r"([^<>]+\S)\s+(<[^<>\s]+>)((\s+<[^<>\s]+>)*)\s*$", line)

-		if m:

-			name = m.group(1)

-			email = m.group(2)[1:-1]

-			contributors[email.lower()] = (name, email)

-			for extra in m.group(3).split():

-				contributors[extra[1:-1].lower()] = (name, email)

-	contributorsCache = contributors

-	return contributors

-def CheckContributor(ui, repo, user=None):

-	set_status("checking CONTRIBUTORS file")

-	user, userline = FindContributor(ui, repo, user, warn=False)

-	if not userline:

-		raise hg_util.Abort("cannot find %s in CONTRIBUTORS" % (user,))

-	return userline

-def FindContributor(ui, repo, user=None, warn=True):

-	if not user:

-		user = ui.config("ui", "username")

-		if not user:

-			raise hg_util.Abort("[ui] username is not configured in .hgrc")

-	user = user.lower()

-	m = re.match(r".*<(.*)>", user)

-	if m:

-		user = m.group(1)

-	contributors = ReadContributors(ui, repo)

-	if user not in contributors:

-		if warn:

-			ui.warn("warning: cannot find %s in CONTRIBUTORS\n" % (user,))

-		return user, None

-	user, email = contributors[user]

-	return email, "%s <%s>" % (user, email)

-#######################################################################

-# Mercurial helper functions.

-# Read http://mercurial.selenic.com/wiki/MercurialApi before writing any of these.

-# We use the ui.pushbuffer/ui.popbuffer + hg_commands.xxx tricks for all interaction

-# with Mercurial.  It has proved the most stable as they make changes.

-hgversion = hg_util.version()

-# We require Mercurial 1.9 and suggest Mercurial 2.0.

-# The details of the scmutil package changed then,

-# so allowing earlier versions would require extra band-aids below.

-# Ubuntu 11.10 ships with Mercurial 1.9.1 as the default version.

-hg_required = "1.9"

-hg_suggested = "2.0"

-old_message = """

-The code review extension requires Mercurial """+hg_required+""" or newer.

-You are using Mercurial """+hgversion+""".

-To install a new Mercurial, use

-	sudo easy_install mercurial=="""+hg_suggested+"""

-or visit http://mercurial.selenic.com/downloads/.

-"""

-linux_message = """

-You may need to clear your current Mercurial installation by running:

-	sudo apt-get remove mercurial mercurial-common

-	sudo rm -rf /etc/mercurial

-"""

-if hgversion < hg_required:

-	msg = old_message

-	if os.access("/etc/mercurial", 0):

-		msg += linux_message

-	raise hg_util.Abort(msg)

-from mercurial.hg import clean as hg_clean

-from mercurial import cmdutil as hg_cmdutil

-from mercurial import error as hg_error

-from mercurial import match as hg_match

-from mercurial import node as hg_node

-class uiwrap(object):

-	def __init__(self, ui):

-		self.ui = ui

-		ui.pushbuffer()

-		self.oldQuiet = ui.quiet

-		ui.quiet = True

-		self.oldVerbose = ui.verbose

-		ui.verbose = False

-	def output(self):

-		ui = self.ui

-		ui.quiet = self.oldQuiet

-		ui.verbose = self.oldVerbose

-		return ui.popbuffer()

-def to_slash(path):

-	if sys.platform == "win32":

-		return path.replace('\\', '/')

-	return path

-def hg_matchPattern(ui, repo, *pats, **opts):

-	w = uiwrap(ui)

-	hg_commands.status(ui, repo, *pats, **opts)

-	text = w.output()

-	ret = []

-	prefix = to_slash(os.path.realpath(repo.root))+'/'

-	for line in text.split('\n'):

-		f = line.split()

-		if len(f) > 1:

-			if len(pats) > 0:

-				# Given patterns, Mercurial shows relative to cwd

-				p = to_slash(os.path.realpath(f[1]))

-				if not p.startswith(prefix):

-					print >>sys.stderr, "File %s not in repo root %s.\n" % (p, prefix)

-				else:

-					ret.append(p[len(prefix):])

-			else:

-				# Without patterns, Mercurial shows relative to root (what we want)

-				ret.append(to_slash(f[1]))

-	return ret

-def hg_heads(ui, repo):

-	w = uiwrap(ui)

-	hg_commands.heads(ui, repo)

-	return w.output()

-noise = [

-	"",

-	"resolving manifests",

-	"searching for changes",

-	"couldn't find merge tool hgmerge",

-	"adding changesets",

-	"adding manifests",

-	"adding file changes",

-	"all local heads known remotely",

-]

-def isNoise(line):

-	line = str(line)

-	for x in noise:

-		if line == x:

-			return True

-	return False

-def hg_incoming(ui, repo):

-	w = uiwrap(ui)

-	ret = hg_commands.incoming(ui, repo, force=False, bundle="")

-	if ret and ret != 1:

-		raise hg_util.Abort(ret)

-	return w.output()

-def hg_log(ui, repo, **opts):

-	for k in ['date', 'keyword', 'rev', 'user']:

-		if not opts.has_key(k):

-			opts[k] = ""

-	w = uiwrap(ui)

-	ret = hg_commands.log(ui, repo, **opts)

-	if ret:

-		raise hg_util.Abort(ret)

-	return w.output()

-def hg_outgoing(ui, repo, **opts):

-	w = uiwrap(ui)

-	ret = hg_commands.outgoing(ui, repo, **opts)

-	if ret and ret != 1:

-		raise hg_util.Abort(ret)

-	return w.output()

-def hg_pull(ui, repo, **opts):

-	w = uiwrap(ui)

-	ui.quiet = False

-	ui.verbose = True  # for file list

-	err = hg_commands.pull(ui, repo, **opts)

-	for line in w.output().split('\n'):

-		if isNoise(line):

-			continue

-		if line.startswith('moving '):

-			line = 'mv ' + line[len('moving '):]

-		if line.startswith('getting ') and line.find(' to ') >= 0:

-			line = 'mv ' + line[len('getting '):]

-		if line.startswith('getting '):

-			line = '+ ' + line[len('getting '):]

-		if line.startswith('removing '):

-			line = '- ' + line[len('removing '):]

-		ui.write(line + '\n')

-	return err

-def hg_push(ui, repo, **opts):

-	w = uiwrap(ui)

-	ui.quiet = False

-	ui.verbose = True

-	err = hg_commands.push(ui, repo, **opts)

-	for line in w.output().split('\n'):

-		if not isNoise(line):

-			ui.write(line + '\n')

-	return err

-def hg_commit(ui, repo, *pats, **opts):

-	return hg_commands.commit(ui, repo, *pats, **opts)

-#######################################################################

-# Mercurial precommit hook to disable commit except through this interface.

-commit_okay = False

-def precommithook(ui, repo, **opts):

-	if commit_okay:

-		return False  # False means okay.

-	ui.write("\ncodereview extension enabled; use mail, upload, or submit instead of commit\n\n")

-	return True

-#######################################################################

-# @clnumber file pattern support

-# We replace scmutil.match with the MatchAt wrapper to add the @clnumber pattern.

-match_repo = None

-match_ui = None

-match_orig = None

-def InstallMatch(ui, repo):

-	global match_repo

-	global match_ui

-	global match_orig

-	match_ui = ui

-	match_repo = repo

-	from mercurial import scmutil

-	match_orig = scmutil.match

-	scmutil.match = MatchAt

-def MatchAt(ctx, pats=None, opts=None, globbed=False, default='relpath'):

-	taken = []

-	files = []

-	pats = pats or []

-	opts = opts or {}

-	for p in pats:

-		if p.startswith('@'):

-			taken.append(p)

-			clname = p[1:]

-			if clname == "default":

-				files = DefaultFiles(match_ui, match_repo, [])

-			else:

-				if not GoodCLName(clname):

-					raise hg_util.Abort("invalid CL name " + clname)

-				cl, err = LoadCL(match_repo.ui, match_repo, clname, web=False)

-				if err != '':

-					raise hg_util.Abort("loading CL " + clname + ": " + err)

-				if not cl.files:

-					raise hg_util.Abort("no files in CL " + clname)

-				files = Add(files, cl.files)

-	pats = Sub(pats, taken) + ['path:'+f for f in files]

-	# work-around for http://selenic.com/hg/rev/785bbc8634f8

-	if not hasattr(ctx, 'match'):

-		ctx = ctx[None]

-	return match_orig(ctx, pats=pats, opts=opts, globbed=globbed, default=default)

-#######################################################################

-# Commands added by code review extension.

-# As of Mercurial 2.1 the commands are all required to return integer

-# exit codes, whereas earlier versions allowed returning arbitrary strings

-# to be printed as errors.  We wrap the old functions to make sure we

-# always return integer exit codes now.  Otherwise Mercurial dies

-# with a TypeError traceback (unsupported operand type(s) for &: 'str' and 'int').

-# Introduce a Python decorator to convert old functions to the new

-# stricter convention.

-def hgcommand(f):

-	def wrapped(ui, repo, *pats, **opts):

-		err = f(ui, repo, *pats, **opts)

-		if type(err) is int:

-			return err

-		if not err:

-			return 0

-		raise hg_util.Abort(err)

-	wrapped.__doc__ = f.__doc__

-	return wrapped

-#######################################################################

-# hg change

-@hgcommand

-def change(ui, repo, *pats, **opts):

-	"""create, edit or delete a change list

-	Create, edit or delete a change list.

-	A change list is a group of files to be reviewed and submitted together,

-	plus a textual description of the change.

-	Change lists are referred to by simple alphanumeric names.

-	Changes must be reviewed before they can be submitted.

-	In the absence of options, the change command opens the

-	change list for editing in the default editor.

-	Deleting a change with the -d or -D flag does not affect

-	the contents of the files listed in that change.  To revert

-	the files listed in a change, use

-		hg revert @123456

-	before running hg change -d 123456.

-	"""

-	if codereview_disabled:

-		return codereview_disabled

-	dirty = {}

-	if len(pats) > 0 and GoodCLName(pats[0]):

-		name = pats[0]

-		if len(pats) != 1:

-			return "cannot specify CL name and file patterns"

-		pats = pats[1:]

-		cl, err = LoadCL(ui, repo, name, web=True)

-		if err != '':

-			return err

-		if not cl.local and (opts["stdin"] or not opts["stdout"]):

-			return "cannot change non-local CL " + name

-	else:

-		name = "new"

-		cl = CL("new")

-		if repo[None].branch() != "default":

-			return "cannot create CL outside default branch; switch with 'hg update default'"

-		dirty[cl] = True

-		files = ChangedFiles(ui, repo, pats, taken=Taken(ui, repo))

-	if opts["delete"] or opts["deletelocal"]:

-		if opts["delete"] and opts["deletelocal"]:

-			return "cannot use -d and -D together"

-		flag = "-d"

-		if opts["deletelocal"]:

-			flag = "-D"

-		if name == "new":

-			return "cannot use "+flag+" with file patterns"

-		if opts["stdin"] or opts["stdout"]:

-			return "cannot use "+flag+" with -i or -o"

-		if not cl.local:

-			return "cannot change non-local CL " + name

-		if opts["delete"]:

-			if cl.copied_from:

-				return "original author must delete CL; hg change -D will remove locally"

-			PostMessage(ui, cl.name, "*** Abandoned ***", send_mail=cl.mailed)

-			EditDesc(cl.name, closed=True, private=cl.private)

-		cl.Delete(ui, repo)

-		return

-	if opts["stdin"]:

-		s = sys.stdin.read()

-		clx, line, err = ParseCL(s, name)

-		if err != '':

-			return "error parsing change list: line %d: %s" % (line, err)

-		if clx.desc is not None:

-			cl.desc = clx.desc;

-			dirty[cl] = True

-		if clx.reviewer is not None:

-			cl.reviewer = clx.reviewer

-			dirty[cl] = True

-		if clx.cc is not None:

-			cl.cc = clx.cc

-			dirty[cl] = True

-		if clx.files is not None:

-			cl.files = clx.files

-			dirty[cl] = True

-		if clx.private != cl.private:

-			cl.private = clx.private

-			dirty[cl] = True

-	if not opts["stdin"] and not opts["stdout"]:

-		if name == "new":

-			cl.files = files

-		err = EditCL(ui, repo, cl)

-		if err != "":

-			return err

-		dirty[cl] = True

-	for d, _ in dirty.items():

-		name = d.name

-		d.Flush(ui, repo)

-		if name == "new":

-			d.Upload(ui, repo, quiet=True)

-	if opts["stdout"]:

-		ui.write(cl.EditorText())

-	elif opts["pending"]:

-		ui.write(cl.PendingText())

-	elif name == "new":

-		if ui.quiet:

-			ui.write(cl.name)

-		else:

-			ui.write("CL created: " + cl.url + "\n")

-	return

-#######################################################################

-# hg code-login (broken?)

-@hgcommand

-def code_login(ui, repo, **opts):

-	"""log in to code review server

-	Logs in to the code review server, saving a cookie in

-	a file in your home directory.

-	"""

-	if codereview_disabled:

-		return codereview_disabled

-	MySend(None)

-#######################################################################

-# hg clpatch / undo / release-apply / download

-# All concerned with applying or unapplying patches to the repository.

-@hgcommand

-def clpatch(ui, repo, clname, **opts):

-	"""import a patch from the code review server

-	Imports a patch from the code review server into the local client.

-	If the local client has already modified any of the files that the

-	patch modifies, this command will refuse to apply the patch.

-	Submitting an imported patch will keep the original author's

-	name as the Author: line but add your own name to a Committer: line.

-	"""

-	if repo[None].branch() != "default":

-		return "cannot run hg clpatch outside default branch"

-	return clpatch_or_undo(ui, repo, clname, opts, mode="clpatch")

-@hgcommand

-def undo(ui, repo, clname, **opts):

-	"""undo the effect of a CL

-	Creates a new CL that undoes an earlier CL.

-	After creating the CL, opens the CL text for editing so that

-	you can add the reason for the undo to the description.

-	"""

-	if repo[None].branch() != "default":

-		return "cannot run hg undo outside default branch"

-	return clpatch_or_undo(ui, repo, clname, opts, mode="undo")

-@hgcommand

-def release_apply(ui, repo, clname, **opts):

-	"""apply a CL to the release branch

-	Creates a new CL copying a previously committed change

-	from the main branch to the release branch.

-	The current client must either be clean or already be in

-	the release branch.

-	The release branch must be created by starting with a

-	clean client, disabling the code review plugin, and running:

-		hg update weekly.YYYY-MM-DD

-		hg branch release-branch.rNN

-		hg commit -m 'create release-branch.rNN'

-		hg push --new-branch

-	Then re-enable the code review plugin.

-	People can test the release branch by running

-		hg update release-branch.rNN

-	in a clean client.  To return to the normal tree,

-		hg update default

-	Move changes since the weekly into the release branch

-	using hg release-apply followed by the usual code review

-	process and hg submit.

-	When it comes time to tag the release, record the

-	final long-form tag of the release-branch.rNN

-	in the *default* branch's .hgtags file.  That is, run

-		hg update default

-	and then edit .hgtags as you would for a weekly.

-	"""

-	c = repo[None]

-	if not releaseBranch:

-		return "no active release branches"

-	if c.branch() != releaseBranch:

-		if c.modified() or c.added() or c.removed():

-			raise hg_util.Abort("uncommitted local changes - cannot switch branches")

-		err = hg_clean(repo, releaseBranch)

-		if err:

-			return err

-	try:

-		err = clpatch_or_undo(ui, repo, clname, opts, mode="backport")

-		if err:

-			raise hg_util.Abort(err)

-	except Exception, e:

-		hg_clean(repo, "default")

-		raise e

-	return None

-def rev2clname(rev):

-	# Extract CL name from revision description.

-	# The last line in the description that is a codereview URL is the real one.

-	# Earlier lines might be part of the user-written description.

-	all = re.findall('(?m)^http://codereview.appspot.com/([0-9]+)$', rev.description())

-	if len(all) > 0:

-		return all[-1]

-	return ""

-undoHeader = """undo CL %s / %s

-<enter reason for undo>

-««« original CL description

-"""

-undoFooter = """

-»»»

-"""

-backportHeader = """[%s] %s

-««« CL %s / %s

-"""

-backportFooter = """

-»»»

-"""

-# Implementation of clpatch/undo.

-def clpatch_or_undo(ui, repo, clname, opts, mode):

-	if codereview_disabled:

-		return codereview_disabled

-	if mode == "undo" or mode == "backport":

-		# Find revision in Mercurial repository.

-		# Assume CL number is 7+ decimal digits.

-		# Otherwise is either change log sequence number (fewer decimal digits),

-		# hexadecimal hash, or tag name.

-		# Mercurial will fall over long before the change log

-		# sequence numbers get to be 7 digits long.

-		if re.match('^[0-9]{7,}$', clname):

-			found = False

-			for r in hg_log(ui, repo, keyword="codereview.appspot.com/"+clname, limit=100, template="{node}\n").split():

-				rev = repo[r]

-				# Last line with a code review URL is the actual review URL.

-				# Earlier ones might be part of the CL description.

-				n = rev2clname(rev)

-				if n == clname:

-					found = True

-					break

-			if not found:

-				return "cannot find CL %s in local repository" % clname

-		else:

-			rev = repo[clname]

-			if not rev:

-				return "unknown revision %s" % clname

-			clname = rev2clname(rev)

-			if clname == "":

-				return "cannot find CL name in revision description"

-		# Create fresh CL and start with patch that would reverse the change.

-		vers = hg_node.short(rev.node())

-		cl = CL("new")

-		desc = str(rev.description())

-		if mode == "undo":

-			cl.desc = (undoHeader % (clname, vers)) + desc + undoFooter

-		else:

-			cl.desc = (backportHeader % (releaseBranch, line1(desc), clname, vers)) + desc + undoFooter

-		v1 = vers

-		v0 = hg_node.short(rev.parents()[0].node())

-		if mode == "undo":

-			arg = v1 + ":" + v0

-		else:

-			vers = v0

-			arg = v0 + ":" + v1

-		patch = RunShell(["hg", "diff", "--git", "-r", arg])

-	else:  # clpatch

-		cl, vers, patch, err = DownloadCL(ui, repo, clname)

-		if err != "":

-			return err

-		if patch == emptydiff:

-			return "codereview issue %s has no diff" % clname

-	# find current hg version (hg identify)

-	ctx = repo[None]

-	parents = ctx.parents()

-	id = '+'.join([hg_node.short(p.node()) for p in parents])

-	# if version does not match the patch version,

-	# try to update the patch line numbers.

-	if vers != "" and id != vers:

-		# "vers in repo" gives the wrong answer

-		# on some versions of Mercurial.  Instead, do the actual

-		# lookup and catch the exception.

-		try:

-			repo[vers].description()

-		except:

-			return "local repository is out of date; sync to get %s" % (vers)

-		patch1, err = portPatch(repo, patch, vers, id)

-		if err != "":

-			if not opts["ignore_hgpatch_failure"]:

-				return "codereview issue %s is out of date: %s (%s->%s)" % (clname, err, vers, id)

-		else:

-			patch = patch1

-	argv = ["hgpatch"]

-	if opts["no_incoming"] or mode == "backport":

-		argv += ["--checksync=false"]

-	try:

-		cmd = subprocess.Popen(argv, shell=False, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=None, close_fds=sys.platform != "win32")

-	except:

-		return "hgpatch: " + ExceptionDetail() + "\nInstall hgpatch with:\n$ go get code.google.com/p/go.codereview/cmd/hgpatch\n"

-	out, err = cmd.communicate(patch)

-	if cmd.returncode != 0 and not opts["ignore_hgpatch_failure"]:

-		return "hgpatch failed"

-	cl.local = True

-	cl.files = out.strip().split()

-	if not cl.files and not opts["ignore_hgpatch_failure"]:

-		return "codereview issue %s has no changed files" % clname

-	files = ChangedFiles(ui, repo, [])

-	extra = Sub(cl.files, files)

-	if extra:

-		ui.warn("warning: these files were listed in the patch but not changed:\n\t" + "\n\t".join(extra) + "\n")

-	cl.Flush(ui, repo)

-	if mode == "undo":

-		err = EditCL(ui, repo, cl)

-		if err != "":

-			return "CL created, but error editing: " + err

-		cl.Flush(ui, repo)

-	else:

-		ui.write(cl.PendingText() + "\n")

-# portPatch rewrites patch from being a patch against

-# oldver to being a patch against newver.

-def portPatch(repo, patch, oldver, newver):

-	lines = patch.splitlines(True) # True = keep \n

-	delta = None

-	for i in range(len(lines)):

-		line = lines[i]

-		if line.startswith('--- a/'):

-			file = line[6:-1]

-			delta = fileDeltas(repo, file, oldver, newver)

-		if not delta or not line.startswith('@@ '):

-			continue

-		# @@ -x,y +z,w @@ means the patch chunk replaces

-		# the original file's line numbers x up to x+y with the

-		# line numbers z up to z+w in the new file.

-		# Find the delta from x in the original to the same

-		# line in the current version and add that delta to both

-		# x and z.

-		m = re.match('@@ -([0-9]+),([0-9]+) \+([0-9]+),([0-9]+) @@', line)

-		if not m:

-			return None, "error parsing patch line numbers"

-		n1, len1, n2, len2 = int(m.group(1)), int(m.group(2)), int(m.group(3)), int(m.group(4))

-		d, err = lineDelta(delta, n1, len1)

-		if err != "":

-			return "", err

-		n1 += d

-		n2 += d

-		lines[i] = "@@ -%d,%d +%d,%d @@\n" % (n1, len1, n2, len2)

-	newpatch = ''.join(lines)

-	return newpatch, ""

-# fileDelta returns the line number deltas for the given file's

-# changes from oldver to newver.

-# The deltas are a list of (n, len, newdelta) triples that say

-# lines [n, n+len) were modified, and after that range the

-# line numbers are +newdelta from what they were before.

-def fileDeltas(repo, file, oldver, newver):

-	cmd = ["hg", "diff", "--git", "-r", oldver + ":" + newver, "path:" + file]

-	data = RunShell(cmd, silent_ok=True)

-	deltas = []

-	for line in data.splitlines():

-		m = re.match('@@ -([0-9]+),([0-9]+) \+([0-9]+),([0-9]+) @@', line)

-		if not m:

-			continue

-		n1, len1, n2, len2 = int(m.group(1)), int(m.group(2)), int(m.group(3)), int(m.group(4))

-		deltas.append((n1, len1, n2+len2-(n1+len1)))

-	return deltas

-# lineDelta finds the appropriate line number delta to apply to the lines [n, n+len).

-# It returns an error if those lines were rewritten by the patch.

-def lineDelta(deltas, n, len):

-	d = 0

-	for (old, oldlen, newdelta) in deltas:

-		if old >= n+len:

-			break

-		if old+len > n:

-			return 0, "patch and recent changes conflict"

-		d = newdelta

-	return d, ""

-@hgcommand

-def download(ui, repo, clname, **opts):

-	"""download a change from the code review server

-	Download prints a description of the given change list

-	followed by its diff, downloaded from the code review server.

-	"""

-	if codereview_disabled:

-		return codereview_disabled

-	cl, vers, patch, err = DownloadCL(ui, repo, clname)

-	if err != "":

-		return err

-	ui.write(cl.EditorText() + "\n")

-	ui.write(patch + "\n")

-	return

-#######################################################################

-# hg file

-@hgcommand

-def file(ui, repo, clname, pat, *pats, **opts):

-	"""assign files to or remove files from a change list

-	Assign files to or (with -d) remove files from a change list.

-	The -d option only removes files from the change list.

-	It does not edit them or remove them from the repository.

-	"""

-	if codereview_disabled:

-		return codereview_disabled

-	pats = tuple([pat] + list(pats))

-	if not GoodCLName(clname):

-		return "invalid CL name " + clname

-	dirty = {}

-	cl, err = LoadCL(ui, repo, clname, web=False)

-	if err != '':

-		return err

-	if not cl.local:

-		return "cannot change non-local CL " + clname

-	files = ChangedFiles(ui, repo, pats)

-	if opts["delete"]:

-		oldfiles = Intersect(files, cl.files)

-		if oldfiles:

-			if not ui.quiet:

-				ui.status("# Removing files from CL.  To undo:\n")

-				ui.status("#	cd %s\n" % (repo.root))

-				for f in oldfiles:

-					ui.status("#	hg file %s %s\n" % (cl.name, f))

-			cl.files = Sub(cl.files, oldfiles)

-			cl.Flush(ui, repo)

-		else:

-			ui.status("no such files in CL")

-		return

-	if not files:

-		return "no such modified files"

-	files = Sub(files, cl.files)

-	taken = Taken(ui, repo)

-	warned = False

-	for f in files:

-		if f in taken:

-			if not warned and not ui.quiet:

-				ui.status("# Taking files from other CLs.  To undo:\n")

-				ui.status("#	cd %s\n" % (repo.root))

-				warned = True

-			ocl = taken[f]

-			if not ui.quiet:

-				ui.status("#	hg file %s %s\n" % (ocl.name, f))

-			if ocl not in dirty:

-				ocl.files = Sub(ocl.files, files)

-				dirty[ocl] = True

-	cl.files = Add(cl.files, files)

-	dirty[cl] = True

-	for d, _ in dirty.items():

-		d.Flush(ui, repo)

-	return

-#######################################################################

-# hg gofmt

-@hgcommand

-def gofmt(ui, repo, *pats, **opts):

-	"""apply gofmt to modified files

-	Applies gofmt to the modified files in the repository that match

-	the given patterns.

-	"""

-	if codereview_disabled:

-		return codereview_disabled

-	files = ChangedExistingFiles(ui, repo, pats, opts)

-	files = gofmt_required(files)

-	if not files:

-		return "no modified go files"

-	cwd = os.getcwd()

-	files = [RelativePath(repo.root + '/' + f, cwd) for f in files]

-	try:

-		cmd = ["gofmt", "-l"]

-		if not opts["list"]:

-			cmd += ["-w"]

-		if os.spawnvp(os.P_WAIT, "gofmt", cmd + files) != 0:

-			raise hg_util.Abort("gofmt did not exit cleanly")

-	except hg_error.Abort, e:

-		raise

-	except:

-		raise hg_util.Abort("gofmt: " + ExceptionDetail())

-	return

-def gofmt_required(files):

-	return [f for f in files if (not f.startswith('test/') or f.startswith('test/bench/')) and f.endswith('.go')]

-#######################################################################

-# hg mail

-@hgcommand

-def mail(ui, repo, *pats, **opts):

-	"""mail a change for review

-	Uploads a patch to the code review server and then sends mail

-	to the reviewer and CC list asking for a review.

-	"""

-	if codereview_disabled:

-		return codereview_disabled

-	cl, err = CommandLineCL(ui, repo, pats, opts, defaultcc=defaultcc)

-	if err != "":

-		return err

-	cl.Upload(ui, repo, gofmt_just_warn=True)

-	if not cl.reviewer:

-		# If no reviewer is listed, assign the review to defaultcc.

-		# This makes sure that it appears in the

-		# codereview.appspot.com/user/defaultcc

-		# page, so that it doesn't get dropped on the floor.

-		if not defaultcc:

-			return "no reviewers listed in CL"

-		cl.cc = Sub(cl.cc, defaultcc)

-		cl.reviewer = defaultcc

-		cl.Flush(ui, repo)

-	if cl.files == []:

-		return "no changed files, not sending mail"

-	cl.Mail(ui, repo)

-#######################################################################

-# hg p / hg pq / hg ps / hg pending

-@hgcommand

-def ps(ui, repo, *pats, **opts):

-	"""alias for hg p --short

-	"""

-	opts['short'] = True

-	return pending(ui, repo, *pats, **opts)

-@hgcommand

-def pq(ui, repo, *pats, **opts):

-	"""alias for hg p --quick

-	"""

-	opts['quick'] = True

-	return pending(ui, repo, *pats, **opts)

-@hgcommand

-def pending(ui, repo, *pats, **opts):

-	"""show pending changes

-	Lists pending changes followed by a list of unassigned but modified files.

-	"""

-	if codereview_disabled:

-		return codereview_disabled

-	quick = opts.get('quick', False)

-	short = opts.get('short', False)

-	m = LoadAllCL(ui, repo, web=not quick and not short)

-	names = m.keys()

-	names.sort()

-	for name in names:

-		cl = m[name]

-		if short:

-			ui.write(name + "\t" + line1(cl.desc) + "\n")

-		else:

-			ui.write(cl.PendingText(quick=quick) + "\n")

-	if short:

-		return

-	files = DefaultFiles(ui, repo, [])

-	if len(files) > 0:

-		s = "Changed files not in any CL:\n"

-		for f in files:

-			s += "\t" + f + "\n"

-		ui.write(s)

-#######################################################################

-# hg submit

-def need_sync():

-	raise hg_util.Abort("local repository out of date; must sync before submit")

-@hgcommand

-def submit(ui, repo, *pats, **opts):

-	"""submit change to remote repository

-	Submits change to remote repository.

-	Bails out if the local repository is not in sync with the remote one.

-	"""

-	if codereview_disabled:

-		return codereview_disabled

-	# We already called this on startup but sometimes Mercurial forgets.

-	set_mercurial_encoding_to_utf8()

-	if not opts["no_incoming"] and hg_incoming(ui, repo):

-		need_sync()

-	cl, err = CommandLineCL(ui, repo, pats, opts, defaultcc=defaultcc)

-	if err != "":

-		return err

-	user = None

-	if cl.copied_from:

-		user = cl.copied_from

-	userline = CheckContributor(ui, repo, user)

-	typecheck(userline, str)

-	about = ""

-	if cl.reviewer:

-		about += "R=" + JoinComma([CutDomain(s) for s in cl.reviewer]) + "\n"

-	if opts.get('tbr'):

-		tbr = SplitCommaSpace(opts.get('tbr'))

-		cl.reviewer = Add(cl.reviewer, tbr)

-		about += "TBR=" + JoinComma([CutDomain(s) for s in tbr]) + "\n"

-	if cl.cc:

-		about += "CC=" + JoinComma([CutDomain(s) for s in cl.cc]) + "\n"

-	if not cl.reviewer:

-		return "no reviewers listed in CL"

-	if not cl.local:

-		return "cannot submit non-local CL"

-	# upload, to sync current patch and also get change number if CL is new.

-	if not cl.copied_from:

-		cl.Upload(ui, repo, gofmt_just_warn=True)

-	# check gofmt for real; allowed upload to warn in order to save CL.

-	cl.Flush(ui, repo)

-	CheckFormat(ui, repo, cl.files)

-	about += "%s%s\n" % (server_url_base, cl.name)

-	if cl.copied_from:

-		about += "\nCommitter: " + CheckContributor(ui, repo, None) + "\n"

-	typecheck(about, str)

-	if not cl.mailed and not cl.copied_from:		# in case this is TBR

-		cl.Mail(ui, repo)

-	# submit changes locally

-	message = cl.desc.rstrip() + "\n\n" + about

-	typecheck(message, str)

-	set_status("pushing " + cl.name + " to remote server")

-	if hg_outgoing(ui, repo):

-		raise hg_util.Abort("local repository corrupt or out-of-phase with remote: found outgoing changes")

-	old_heads = len(hg_heads(ui, repo).split())

-	global commit_okay

-	commit_okay = True

-	ret = hg_commit(ui, repo, *['path:'+f for f in cl.files], message=message, user=userline)

-	commit_okay = False

-	if ret:

-		return "nothing changed"

-	node = repo["-1"].node()

-	# push to remote; if it fails for any reason, roll back

-	try:

-		new_heads = len(hg_heads(ui, repo).split())

-		if old_heads != new_heads and not (old_heads == 0 and new_heads == 1):

-			# Created new head, so we weren't up to date.

-			need_sync()

-		# Push changes to remote.  If it works, we're committed.  If not, roll back.

-		try:

-			hg_push(ui, repo)

-		except hg_error.Abort, e:

-			if e.message.find("push creates new heads") >= 0:

-				# Remote repository had changes we missed.

-				need_sync()

-			raise

-	except:

-		real_rollback()

-		raise

-	# We're committed. Upload final patch, close review, add commit message.

-	changeURL = hg_node.short(node)

-	url = ui.expandpath("default")

-	m = re.match("(^https?://([^@/]+@)?([^.]+)\.googlecode\.com/hg/?)" + "|" +

-		"(^https?://([^@/]+@)?code\.google\.com/p/([^/.]+)(\.[^./]+)?/?)", url)

-	if m:

-		if m.group(1): # prj.googlecode.com/hg/ case

-			changeURL = "http://code.google.com/p/%s/source/detail?r=%s" % (m.group(3), changeURL)

-		elif m.group(4) and m.group(7): # code.google.com/p/prj.subrepo/ case

-			changeURL = "http://code.google.com/p/%s/source/detail?r=%s&repo=%s" % (m.group(6), changeURL, m.group(7)[1:])

-		elif m.group(4): # code.google.com/p/prj/ case

-			changeURL = "http://code.google.com/p/%s/source/detail?r=%s" % (m.group(6), changeURL)

-		else:

-			print >>sys.stderr, "URL: ", url

-	else:

-		print >>sys.stderr, "URL: ", url

-	pmsg = "*** Submitted as " + changeURL + " ***\n\n" + message

-	# When posting, move reviewers to CC line,

-	# so that the issue stops showing up in their "My Issues" page.

-	PostMessage(ui, cl.name, pmsg, reviewers="", cc=JoinComma(cl.reviewer+cl.cc))

-	if not cl.copied_from:

-		EditDesc(cl.name, closed=True, private=cl.private)

-	cl.Delete(ui, repo)

-	c = repo[None]

-	if c.branch() == releaseBranch and not c.modified() and not c.added() and not c.removed():

-		ui.write("switching from %s to default branch.\n" % releaseBranch)

-		err = hg_clean(repo, "default")

-		if err:

-			return err

-	return None

-#######################################################################

-# hg sync

-@hgcommand

-def sync(ui, repo, **opts):

-	"""synchronize with remote repository

-	Incorporates recent changes from the remote repository

-	into the local repository.

-	"""

-	if codereview_disabled:

-		return codereview_disabled

-	if not opts["local"]:

-		err = hg_pull(ui, repo, update=True)

-		if err:

-			return err

-	sync_changes(ui, repo)

-def sync_changes(ui, repo):

-	# Look through recent change log descriptions to find

-	# potential references to http://.*/our-CL-number.

-	# Double-check them by looking at the Rietveld log.

-	for rev in hg_log(ui, repo, limit=100, template="{node}\n").split():

-		desc = repo[rev].description().strip()

-		for clname in re.findall('(?m)^http://(?:[^\n]+)/([0-9]+)$', desc):

-			if IsLocalCL(ui, repo, clname) and IsRietveldSubmitted(ui, clname, repo[rev].hex()):

-				ui.warn("CL %s submitted as %s; closing\n" % (clname, repo[rev]))

-				cl, err = LoadCL(ui, repo, clname, web=False)

-				if err != "":

-					ui.warn("loading CL %s: %s\n" % (clname, err))

-					continue

-				if not cl.copied_from:

-					EditDesc(cl.name, closed=True, private=cl.private)

-				cl.Delete(ui, repo)

-	# Remove files that are not modified from the CLs in which they appear.

-	all = LoadAllCL(ui, repo, web=False)

-	changed = ChangedFiles(ui, repo, [])

-	for cl in all.values():

-		extra = Sub(cl.files, changed)

-		if extra:

-			ui.warn("Removing unmodified files from CL %s:\n" % (cl.name,))

-			for f in extra:

-				ui.warn("\t%s\n" % (f,))

-			cl.files = Sub(cl.files, extra)

-			cl.Flush(ui, repo)

-		if not cl.files:

-			if not cl.copied_from:

-				ui.warn("CL %s has no files; delete (abandon) with hg change -d %s\n" % (cl.name, cl.name))

-			else:

-				ui.warn("CL %s has no files; delete locally with hg change -D %s\n" % (cl.name, cl.name))

-	return

-#######################################################################

-# hg upload

-@hgcommand

-def upload(ui, repo, name, **opts):

-	"""upload diffs to the code review server

-	Uploads the current modifications for a given change to the server.

-	"""

-	if codereview_disabled:

-		return codereview_disabled

-	repo.ui.quiet = True

-	cl, err = LoadCL(ui, repo, name, web=True)

-	if err != "":

-		return err

-	if not cl.local:

-		return "cannot upload non-local change"

-	cl.Upload(ui, repo)

-	print "%s%s\n" % (server_url_base, cl.name)

-	return

-#######################################################################

-# Table of commands, supplied to Mercurial for installation.

-review_opts = [

-	('r', 'reviewer', '', 'add reviewer'),

-	('', 'cc', '', 'add cc'),

-	('', 'tbr', '', 'add future reviewer'),

-	('m', 'message', '', 'change description (for new change)'),

-]

-cmdtable = {

-	# The ^ means to show this command in the help text that

-	# is printed when running hg with no arguments.

-	"^change": (

-		change,

-		[

-			('d', 'delete', None, 'delete existing change list'),

-			('D', 'deletelocal', None, 'delete locally, but do not change CL on server'),

-			('i', 'stdin', None, 'read change list from standard input'),

-			('o', 'stdout', None, 'print change list to standard output'),

-			('p', 'pending', None, 'print pending summary to standard output'),

-		],

-		"[-d | -D] [-i] [-o] change# or FILE ..."

-	),

-	"^clpatch": (

-		clpatch,

-		[

-			('', 'ignore_hgpatch_failure', None, 'create CL metadata even if hgpatch fails'),

-			('', 'no_incoming', None, 'disable check for incoming changes'),

-		],

-		"change#"

-	),

-	# Would prefer to call this codereview-login, but then

-	# hg help codereview prints the help for this command

-	# instead of the help for the extension.

-	"code-login": (

-		code_login,

-		[],

-		"",

-	),

-	"^download": (

-		download,

-		[],

-		"change#"

-	),

-	"^file": (

-		file,

-		[

-			('d', 'delete', None, 'delete files from change list (but not repository)'),

-		],

-		"[-d] change# FILE ..."

-	),

-	"^gofmt": (

-		gofmt,

-		[

-			('l', 'list', None, 'list files that would change, but do not edit them'),

-		],

-		"FILE ..."

-	),

-	"^pending|p": (

-		pending,

-		[

-			('s', 'short', False, 'show short result form'),

-			('', 'quick', False, 'do not consult codereview server'),

-		],

-		"[FILE ...]"

-	),

-	"^ps": (

-		ps,

-		[],

-		"[FILE ...]"

-	),

-	"^pq": (

-		pq,

-		[],

-		"[FILE ...]"

-	),

-	"^mail": (

-		mail,

-		review_opts + [

-		] + hg_commands.walkopts,

-		"[-r reviewer] [--cc cc] [change# | file ...]"

-	),

-	"^release-apply": (

-		release_apply,

-		[

-			('', 'ignore_hgpatch_failure', None, 'create CL metadata even if hgpatch fails'),

-			('', 'no_incoming', None, 'disable check for incoming changes'),

-		],

-		"change#"

-	),

-	# TODO: release-start, release-tag, weekly-tag

-	"^submit": (

-		submit,

-		review_opts + [

-			('', 'no_incoming', None, 'disable initial incoming check (for testing)'),

-		] + hg_commands.walkopts + hg_commands.commitopts + hg_commands.commitopts2,

-		"[-r reviewer] [--cc cc] [change# | file ...]"

-	),

-	"^sync": (

-		sync,

-		[

-			('', 'local', None, 'do not pull changes from remote repository')

-		],

-		"[--local]",

-	),

-	"^undo": (

-		undo,

-		[

-			('', 'ignore_hgpatch_failure', None, 'create CL metadata even if hgpatch fails'),

-			('', 'no_incoming', None, 'disable check for incoming changes'),

-		],

-		"change#"

-	),

-	"^upload": (

-		upload,

-		[],

-		"change#"

-	),

-}

-#######################################################################

-# Mercurial extension initialization

-def norollback(*pats, **opts):

-	"""(disabled when using this extension)"""

-	raise hg_util.Abort("codereview extension enabled; use undo instead of rollback")

-codereview_init = False

-def reposetup(ui, repo):

-	global codereview_disabled

-	global defaultcc

-	# reposetup gets called both for the local repository

-	# and also for any repository we are pulling or pushing to.

-	# Only initialize the first time.

-	global codereview_init

-	if codereview_init:

-		return

-	codereview_init = True

-	# Read repository-specific options from lib/codereview/codereview.cfg or codereview.cfg.

-	root = ''

-	try:

-		root = repo.root

-	except:

-		# Yes, repo might not have root; see issue 959.

-		codereview_disabled = 'codereview disabled: repository has no root'

-		return

-	repo_config_path = ''

-	p1 = root + '/lib/codereview/codereview.cfg'

-	p2 = root + '/codereview.cfg'

-	if os.access(p1, os.F_OK):

-		repo_config_path = p1

-	else:

-		repo_config_path = p2

-	try:

-		f = open(repo_config_path)

-		for line in f:

-			if line.startswith('defaultcc:'):

-				defaultcc = SplitCommaSpace(line[len('defaultcc:'):])

-			if line.startswith('contributors:'):

-				global contributorsURL

-				contributorsURL = line[len('contributors:'):].strip()

-	except:

-		codereview_disabled = 'codereview disabled: cannot open ' + repo_config_path

-		return

-	remote = ui.config("paths", "default", "")

-	if remote.find("://") < 0:

-		raise hg_util.Abort("codereview: default path '%s' is not a URL" % (remote,))

-	InstallMatch(ui, repo)

-	RietveldSetup(ui, repo)

-	# Disable the Mercurial commands that might change the repository.

-	# Only commands in this extension are supposed to do that.

-	ui.setconfig("hooks", "precommit.codereview", precommithook)

-	# Rollback removes an existing commit.  Don't do that either.

-	global real_rollback

-	real_rollback = repo.rollback

-	repo.rollback = norollback

-#######################################################################

-# Wrappers around upload.py for interacting with Rietveld

-from HTMLParser import HTMLParser

-# HTML form parser

-class FormParser(HTMLParser):

-	def __init__(self):

-		self.map = {}

-		self.curtag = None

-		self.curdata = None

-		HTMLParser.__init__(self)

-	def handle_starttag(self, tag, attrs):

-		if tag == "input":

-			key = None

-			value = ''

-			for a in attrs:

-				if a[0] == 'name':

-					key = a[1]

-				if a[0] == 'value':

-					value = a[1]

-			if key is not None:

-				self.map[key] = value

-		if tag == "textarea":

-			key = None

-			for a in attrs:

-				if a[0] == 'name':

-					key = a[1]

-			if key is not None:

-				self.curtag = key

-				self.curdata = ''

-	def handle_endtag(self, tag):

-		if tag == "textarea" and self.curtag is not None:

-			self.map[self.curtag] = self.curdata

-			self.curtag = None

-			self.curdata = None

-	def handle_charref(self, name):

-		self.handle_data(unichr(int(name)))

-	def handle_entityref(self, name):

-		import htmlentitydefs

-		if name in htmlentitydefs.entitydefs:

-			self.handle_data(htmlentitydefs.entitydefs[name])

-		else:

-			self.handle_data("&" + name + ";")

-	def handle_data(self, data):

-		if self.curdata is not None:

-			self.curdata += data

-def JSONGet(ui, path):

-	try:

-		data = MySend(path, force_auth=False)

-		typecheck(data, str)

-		d = fix_json(json.loads(data))

-	except:

-		ui.warn("JSONGet %s: %s\n" % (path, ExceptionDetail()))

-		return None

-	return d

-# Clean up json parser output to match our expectations:

-#   * all strings are UTF-8-encoded str, not unicode.

-#   * missing fields are missing, not None,

-#     so that d.get("foo", defaultvalue) works.

-def fix_json(x):

-	if type(x) in [str, int, float, bool, type(None)]:

-		pass

-	elif type(x) is unicode:

-		x = x.encode("utf-8")

-	elif type(x) is list:

-		for i in range(len(x)):

-			x[i] = fix_json(x[i])

-	elif type(x) is dict:

-		todel = []

-		for k in x:

-			if x[k] is None:

-				todel.append(k)

-			else:

-				x[k] = fix_json(x[k])

-		for k in todel:

-			del x[k]

-	else:

-		raise hg_util.Abort("unknown type " + str(type(x)) + " in fix_json")

-	if type(x) is str:

-		x = x.replace('\r\n', '\n')

-	return x

-def IsRietveldSubmitted(ui, clname, hex):

-	dict = JSONGet(ui, "/api/" + clname + "?messages=true")

-	if dict is None:

-		return False

-	for msg in dict.get("messages", []):

-		text = msg.get("text", "")

-		m = re.match('\*\*\* Submitted as [^*]*?([0-9a-f]+) \*\*\*', text)

-		if m is not None and len(m.group(1)) >= 8 and hex.startswith(m.group(1)):

-			return True

-	return False

-def IsRietveldMailed(cl):

-	for msg in cl.dict.get("messages", []):

-		if msg.get("text", "").find("I'd like you to review this change") >= 0:

-			return True

-	return False

-def DownloadCL(ui, repo, clname):

-	set_status("downloading CL " + clname)

-	cl, err = LoadCL(ui, repo, clname, web=True)

-	if err != "":

-		return None, None, None, "error loading CL %s: %s" % (clname, err)

-	# Find most recent diff

-	diffs = cl.dict.get("patchsets", [])

-	if not diffs:

-		return None, None, None, "CL has no patch sets"

-	patchid = diffs[-1]

-	patchset = JSONGet(ui, "/api/" + clname + "/" + str(patchid))

-	if patchset is None:

-		return None, None, None, "error loading CL patchset %s/%d" % (clname, patchid)

-	if patchset.get("patchset", 0) != patchid:

-		return None, None, None, "malformed patchset information"

-	vers = ""

-	msg = patchset.get("message", "").split()

-	if len(msg) >= 3 and msg[0] == "diff" and msg[1] == "-r":

-		vers = msg[2]

-	diff = "/download/issue" + clname + "_" + str(patchid) + ".diff"

-	diffdata = MySend(diff, force_auth=False)

-	# Print warning if email is not in CONTRIBUTORS file.

-	email = cl.dict.get("owner_email", "")

-	if not email:

-		return None, None, None, "cannot find owner for %s" % (clname)

-	him = FindContributor(ui, repo, email)

-	me = FindContributor(ui, repo, None)

-	if him == me:

-		cl.mailed = IsRietveldMailed(cl)

-	else:

-		cl.copied_from = email

-	return cl, vers, diffdata, ""

-def MySend(request_path, payload=None,

-		content_type="application/octet-stream",

-		timeout=None, force_auth=True,

-		**kwargs):

-	"""Run MySend1 maybe twice, because Rietveld is unreliable."""

-	try:

-		return MySend1(request_path, payload, content_type, timeout, force_auth, **kwargs)

-	except Exception, e:

-		if type(e) != urllib2.HTTPError or e.code != 500:	# only retry on HTTP 500 error

-			raise

-		print >>sys.stderr, "Loading "+request_path+": "+ExceptionDetail()+"; trying again in 2 seconds."

-		time.sleep(2)

-		return MySend1(request_path, payload, content_type, timeout, force_auth, **kwargs)

-# Like upload.py Send but only authenticates when the

-# redirect is to www.google.com/accounts.  This keeps

-# unnecessary redirects from happening during testing.

-def MySend1(request_path, payload=None,

-				content_type="application/octet-stream",

-				timeout=None, force_auth=True,

-				**kwargs):

-	"""Sends an RPC and returns the response.

-	Args:

-		request_path: The path to send the request to, eg /api/appversion/create.

-		payload: The body of the request, or None to send an empty request.

-		content_type: The Content-Type header to use.

-		timeout: timeout in seconds; default None i.e. no timeout.

-			(Note: for large requests on OS X, the timeout doesn't work right.)

-		kwargs: Any keyword arguments are converted into query string parameters.

-	Returns:

-		The response body, as a string.

-	"""

-	# TODO: Don't require authentication.  Let the server say

-	# whether it is necessary.

-	global rpc

-	if rpc == None:

-		rpc = GetRpcServer(upload_options)

-	self = rpc

-	if not self.authenticated and force_auth:

-		self._Authenticate()

-	if request_path is None:

-		return

-	old_timeout = socket.getdefaulttimeout()

-	socket.setdefaulttimeout(timeout)

-	try:

-		tries = 0

-		while True:

-			tries += 1

-			args = dict(kwargs)

-			url = "http://%s%s" % (self.host, request_path)

-			if args:

-				url += "?" + urllib.urlencode(args)

-			req = self._CreateRequest(url=url, data=payload)

-			req.add_header("Content-Type", content_type)

-			try:

-				f = self.opener.open(req)

-				response = f.read()

-				f.close()

-				# Translate \r\n into \n, because Rietveld doesn't.

-				response = response.replace('\r\n', '\n')

-				# who knows what urllib will give us

-				if type(response) == unicode:

-					response = response.encode("utf-8")

-				typecheck(response, str)

-				return response

-			except urllib2.HTTPError, e:

-				if tries > 3:

-					raise

-				elif e.code == 401:

-					self._Authenticate()

-				elif e.code == 302:

-					loc = e.info()["location"]

-					if not loc.startswith('https://www.google.com/a') or loc.find('/ServiceLogin') < 0:

-						return ''

-					self._Authenticate()

-				else:

-					raise

-	finally:

-		socket.setdefaulttimeout(old_timeout)

-def GetForm(url):

-	f = FormParser()

-	f.feed(ustr(MySend(url)))	# f.feed wants unicode

-	f.close()

-	# convert back to utf-8 to restore sanity

-	m = {}

-	for k,v in f.map.items():

-		m[k.encode("utf-8")] = v.replace("\r\n", "\n").encode("utf-8")

-	return m

-def EditDesc(issue, subject=None, desc=None, reviewers=None, cc=None, closed=False, private=False):

-	set_status("uploading change to description")

-	form_fields = GetForm("/" + issue + "/edit")

-	if subject is not None:

-		form_fields['subject'] = subject

-	if desc is not None:

-		form_fields['description'] = desc

-	if reviewers is not None:

-		form_fields['reviewers'] = reviewers

-	if cc is not None:

-		form_fields['cc'] = cc

-	if closed:

-		form_fields['closed'] = "checked"

-	if private:

-		form_fields['private'] = "checked"

-	ctype, body = EncodeMultipartFormData(form_fields.items(), [])

-	response = MySend("/" + issue + "/edit", body, content_type=ctype)

-	if response != "":

-		print >>sys.stderr, "Error editing description:\n" + "Sent form: \n", form_fields, "\n", response

-		sys.exit(2)

-def PostMessage(ui, issue, message, reviewers=None, cc=None, send_mail=True, subject=None):

-	set_status("uploading message")

-	form_fields = GetForm("/" + issue + "/publish")

-	if reviewers is not None:

-		form_fields['reviewers'] = reviewers

-	if cc is not None:

-		form_fields['cc'] = cc

-	if send_mail:

-		form_fields['send_mail'] = "checked"

-	else:

-		del form_fields['send_mail']

-	if subject is not None:

-		form_fields['subject'] = subject

-	form_fields['message'] = message

-	form_fields['message_only'] = '1'	# Don't include draft comments

-	if reviewers is not None or cc is not None:

-		form_fields['message_only'] = ''	# Must set '' in order to override cc/reviewer

-	ctype = "applications/x-www-form-urlencoded"

-	body = urllib.urlencode(form_fields)

-	response = MySend("/" + issue + "/publish", body, content_type=ctype)

-	if response != "":

-		print response

-		sys.exit(2)

-class opt(object):

-	pass

-def RietveldSetup(ui, repo):

-	global force_google_account

-	global rpc

-	global server

-	global server_url_base

-	global upload_options

-	global verbosity

-	if not ui.verbose:

-		verbosity = 0

-	# Config options.

-	x = ui.config("codereview", "server")

-	if x is not None:

-		server = x

-	# TODO(rsc): Take from ui.username?

-	email = None

-	x = ui.config("codereview", "email")

-	if x is not None:

-		email = x

-	server_url_base = "http://" + server + "/"

-	testing = ui.config("codereview", "testing")

-	force_google_account = ui.configbool("codereview", "force_google_account", False)

-	upload_options = opt()

-	upload_options.email = email

-	upload_options.host = None

-	upload_options.verbose = 0

-	upload_options.description = None

-	upload_options.description_file = None

-	upload_options.reviewers = None

-	upload_options.cc = None

-	upload_options.message = None

-	upload_options.issue = None

-	upload_options.download_base = False

-	upload_options.revision = None

-	upload_options.send_mail = False

-	upload_options.vcs = None

-	upload_options.server = server

-	upload_options.save_cookies = True

-	if testing:

-		upload_options.save_cookies = False

-		upload_options.email = "test@example.com"

-	rpc = None

-	global releaseBranch

-	tags = repo.branchtags().keys()

-	if 'release-branch.go10' in tags:

-		# NOTE(rsc): This tags.sort is going to get the wrong

-		# answer when comparing release-branch.go9 with

-		# release-branch.go10.  It will be a while before we care.

-		raise hg_util.Abort('tags.sort needs to be fixed for release-branch.go10')

-	tags.sort()

-	for t in tags:

-		if t.startswith('release-branch.go'):

-			releaseBranch = t

-#######################################################################

-# http://codereview.appspot.com/static/upload.py, heavily edited.

-#!/usr/bin/env python

-#

-# Copyright 2007 Google Inc.

-#

-# Licensed under the Apache License, Version 2.0 (the "License");

-# you may not use this file except in compliance with the License.

-# You may obtain a copy of the License at

-#

-#	http://www.apache.org/licenses/LICENSE-2.0

-#

-# Unless required by applicable law or agreed to in writing, software

-# distributed under the License is distributed on an "AS IS" BASIS,

-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

-# See the License for the specific language governing permissions and

-# limitations under the License.

-"""Tool for uploading diffs from a version control system to the codereview app.

-Usage summary: upload.py [options] [-- diff_options]

-Diff options are passed to the diff command of the underlying system.

-Supported version control systems:

-	Git

-	Mercurial

-	Subversion

-It is important for Git/Mercurial users to specify a tree/node/branch to diff

-against by using the '--rev' option.

-"""

-# This code is derived from appcfg.py in the App Engine SDK (open source),

-# and from ASPN recipe #146306.

-import cookielib

-import getpass

-import logging

-import mimetypes

-import optparse

-import os

-import re

-import socket

-import subprocess

-import sys

-import urllib

-import urllib2

-import urlparse

-# The md5 module was deprecated in Python 2.5.

-try:

-	from hashlib import md5

-except ImportError:

-	from md5 import md5

-try:

-	import readline

-except ImportError:

-	pass

-# The logging verbosity:

-#  0: Errors only.

-#  1: Status messages.

-#  2: Info logs.

-#  3: Debug logs.

-verbosity = 1

-# Max size of patch or base file.

-MAX_UPLOAD_SIZE = 900 * 1024

-# whitelist for non-binary filetypes which do not start with "text/"

-# .mm (Objective-C) shows up as application/x-freemind on my Linux box.

-TEXT_MIMETYPES = [

-	'application/javascript',

-	'application/x-javascript',

-	'application/x-freemind'

-]

-def GetEmail(prompt):

-	"""Prompts the user for their email address and returns it.

-	The last used email address is saved to a file and offered up as a suggestion

-	to the user. If the user presses enter without typing in anything the last

-	used email address is used. If the user enters a new address, it is saved

-	for next time we prompt.

-	"""

-	last_email_file_name = os.path.expanduser("~/.last_codereview_email_address")

-	last_email = ""

-	if os.path.exists(last_email_file_name):

-		try:

-			last_email_file = open(last_email_file_name, "r")

-			last_email = last_email_file.readline().strip("\n")

-			last_email_file.close()

-			prompt += " [%s]" % last_email

-		except IOError, e:

-			pass

-	email = raw_input(prompt + ": ").strip()

-	if email:

-		try:

-			last_email_file = open(last_email_file_name, "w")

-			last_email_file.write(email)

-			last_email_file.close()

-		except IOError, e:

-			pass

-	else:

-		email = last_email

-	return email

-def StatusUpdate(msg):

-	"""Print a status message to stdout.

-	If 'verbosity' is greater than 0, print the message.

-	Args:

-		msg: The string to print.

-	"""

-	if verbosity > 0:

-		print msg

-def ErrorExit(msg):

-	"""Print an error message to stderr and exit."""

-	print >>sys.stderr, msg

-	sys.exit(1)

-class ClientLoginError(urllib2.HTTPError):

-	"""Raised to indicate there was an error authenticating with ClientLogin."""

-	def __init__(self, url, code, msg, headers, args):

-		urllib2.HTTPError.__init__(self, url, code, msg, headers, None)

-		self.args = args

-		self.reason = args["Error"]

-class AbstractRpcServer(object):

-	"""Provides a common interface for a simple RPC server."""

-	def __init__(self, host, auth_function, host_override=None, extra_headers={}, save_cookies=False):

-		"""Creates a new HttpRpcServer.

-		Args:

-			host: The host to send requests to.

-			auth_function: A function that takes no arguments and returns an

-				(email, password) tuple when called. Will be called if authentication

-				is required.

-			host_override: The host header to send to the server (defaults to host).

-			extra_headers: A dict of extra headers to append to every request.

-			save_cookies: If True, save the authentication cookies to local disk.

-				If False, use an in-memory cookiejar instead.  Subclasses must

-				implement this functionality.  Defaults to False.

-		"""

-		self.host = host

-		self.host_override = host_override

-		self.auth_function = auth_function

-		self.authenticated = False

-		self.extra_headers = extra_headers

-		self.save_cookies = save_cookies

-		self.opener = self._GetOpener()

-		if self.host_override:

-			logging.info("Server: %s; Host: %s", self.host, self.host_override)

-		else:

-			logging.info("Server: %s", self.host)

-	def _GetOpener(self):

-		"""Returns an OpenerDirector for making HTTP requests.

-		Returns:

-			A urllib2.OpenerDirector object.

-		"""

-		raise NotImplementedError()

-	def _CreateRequest(self, url, data=None):

-		"""Creates a new urllib request."""

-		logging.debug("Creating request for: '%s' with payload:\n%s", url, data)

-		req = urllib2.Request(url, data=data)

-		if self.host_override:

-			req.add_header("Host", self.host_override)

-		for key, value in self.extra_headers.iteritems():

-			req.add_header(key, value)

-		return req

-	def _GetAuthToken(self, email, password):

-		"""Uses ClientLogin to authenticate the user, returning an auth token.

-		Args:

-			email:    The user's email address

-			password: The user's password

-		Raises:

-			ClientLoginError: If there was an error authenticating with ClientLogin.

-			HTTPError: If there was some other form of HTTP error.

-		Returns:

-			The authentication token returned by ClientLogin.

-		"""

-		account_type = "GOOGLE"

-		if self.host.endswith(".google.com") and not force_google_account:

-			# Needed for use inside Google.

-			account_type = "HOSTED"

-		req = self._CreateRequest(

-				url="https://www.google.com/accounts/ClientLogin",

-				data=urllib.urlencode({

-						"Email": email,

-						"Passwd": password,

-						"service": "ah",

-						"source": "rietveld-codereview-upload",

-						"accountType": account_type,

-				}),

-		)

-		try:

-			response = self.opener.open(req)

-			response_body = response.read()

-			response_dict = dict(x.split("=") for x in response_body.split("\n") if x)

-			return response_dict["Auth"]

-		except urllib2.HTTPError, e:

-			if e.code == 403:

-				body = e.read()

-				response_dict = dict(x.split("=", 1) for x in body.split("\n") if x)

-				raise ClientLoginError(req.get_full_url(), e.code, e.msg, e.headers, response_dict)

-			else:

-				raise

-	def _GetAuthCookie(self, auth_token):

-		"""Fetches authentication cookies for an authentication token.

-		Args:

-			auth_token: The authentication token returned by ClientLogin.

-		Raises:

-			HTTPError: If there was an error fetching the authentication cookies.

-		"""

-		# This is a dummy value to allow us to identify when we're successful.

-		continue_location = "http://localhost/"

-		args = {"continue": continue_location, "auth": auth_token}

-		req = self._CreateRequest("http://%s/_ah/login?%s" % (self.host, urllib.urlencode(args)))

-		try:

-			response = self.opener.open(req)

-		except urllib2.HTTPError, e:

-			response = e

-		if (response.code != 302 or

-				response.info()["location"] != continue_location):

-			raise urllib2.HTTPError(req.get_full_url(), response.code, response.msg, response.headers, response.fp)

-		self.authenticated = True

-	def _Authenticate(self):

-		"""Authenticates the user.

-		The authentication process works as follows:

-		1) We get a username and password from the user

-		2) We use ClientLogin to obtain an AUTH token for the user

-				(see http://code.google.com/apis/accounts/AuthForInstalledApps.html).

-		3) We pass the auth token to /_ah/login on the server to obtain an

-				authentication cookie. If login was successful, it tries to redirect

-				us to the URL we provided.

-		If we attempt to access the upload API without first obtaining an

-		authentication cookie, it returns a 401 response (or a 302) and

-		directs us to authenticate ourselves with ClientLogin.

-		"""

-		for i in range(3):

-			credentials = self.auth_function()

-			try:

-				auth_token = self._GetAuthToken(credentials[0], credentials[1])

-			except ClientLoginError, e:

-				if e.reason == "BadAuthentication":

-					print >>sys.stderr, "Invalid username or password."

-					continue

-				if e.reason == "CaptchaRequired":

-					print >>sys.stderr, (

-						"Please go to\n"

-						"https://www.google.com/accounts/DisplayUnlockCaptcha\n"

-						"and verify you are a human.  Then try again.")

-					break

-				if e.reason == "NotVerified":

-					print >>sys.stderr, "Account not verified."

-					break

-				if e.reason == "TermsNotAgreed":

-					print >>sys.stderr, "User has not agreed to TOS."

-					break

-				if e.reason == "AccountDeleted":

-					print >>sys.stderr, "The user account has been deleted."

-					break

-				if e.reason == "AccountDisabled":

-					print >>sys.stderr, "The user account has been disabled."

-					break

-				if e.reason == "ServiceDisabled":

-					print >>sys.stderr, "The user's access to the service has been disabled."

-					break

-				if e.reason == "ServiceUnavailable":

-					print >>sys.stderr, "The service is not available; try again later."

-					break

-				raise

-			self._GetAuthCookie(auth_token)

-			return

-	def Send(self, request_path, payload=None,

-					content_type="application/octet-stream",

-					timeout=None,

-					**kwargs):

-		"""Sends an RPC and returns the response.

-		Args:

-			request_path: The path to send the request to, eg /api/appversion/create.

-			payload: The body of the request, or None to send an empty request.

-			content_type: The Content-Type header to use.

-			timeout: timeout in seconds; default None i.e. no timeout.

-				(Note: for large requests on OS X, the timeout doesn't work right.)

-			kwargs: Any keyword arguments are converted into query string parameters.

-		Returns:

-			The response body, as a string.

-		"""

-		# TODO: Don't require authentication.  Let the server say

-		# whether it is necessary.

-		if not self.authenticated:

-			self._Authenticate()

-		old_timeout = socket.getdefaulttimeout()

-		socket.setdefaulttimeout(timeout)

-		try:

-			tries = 0

-			while True:

-				tries += 1

-				args = dict(kwargs)

-				url = "http://%s%s" % (self.host, request_path)

-				if args:

-					url += "?" + urllib.urlencode(args)

-				req = self._CreateRequest(url=url, data=payload)

-				req.add_header("Content-Type", content_type)

-				try:

-					f = self.opener.open(req)

-					response = f.read()

-					f.close()

-					return response

-				except urllib2.HTTPError, e:

-					if tries > 3:

-						raise

-					elif e.code == 401 or e.code == 302:

-						self._Authenticate()

-					else:

-						raise

-		finally:

-			socket.setdefaulttimeout(old_timeout)

-class HttpRpcServer(AbstractRpcServer):

-	"""Provides a simplified RPC-style interface for HTTP requests."""

-	def _Authenticate(self):

-		"""Save the cookie jar after authentication."""

-		super(HttpRpcServer, self)._Authenticate()

-		if self.save_cookies:

-			StatusUpdate("Saving authentication cookies to %s" % self.cookie_file)

-			self.cookie_jar.save()

-	def _GetOpener(self):

-		"""Returns an OpenerDirector that supports cookies and ignores redirects.

-		Returns:

-			A urllib2.OpenerDirector object.

-		"""

-		opener = urllib2.OpenerDirector()

-		opener.add_handler(urllib2.ProxyHandler())

-		opener.add_handler(urllib2.UnknownHandler())

-		opener.add_handler(urllib2.HTTPHandler())

-		opener.add_handler(urllib2.HTTPDefaultErrorHandler())

-		opener.add_handler(urllib2.HTTPSHandler())

-		opener.add_handler(urllib2.HTTPErrorProcessor())

-		if self.save_cookies:

-			self.cookie_file = os.path.expanduser("~/.codereview_upload_cookies_" + server)

-			self.cookie_jar = cookielib.MozillaCookieJar(self.cookie_file)

-			if os.path.exists(self.cookie_file):

-				try:

-					self.cookie_jar.load()

-					self.authenticated = True

-					StatusUpdate("Loaded authentication cookies from %s" % self.cookie_file)

-				except (cookielib.LoadError, IOError):

-					# Failed to load cookies - just ignore them.

-					pass

-			else:

-				# Create an empty cookie file with mode 600

-				fd = os.open(self.cookie_file, os.O_CREAT, 0600)

-				os.close(fd)

-			# Always chmod the cookie file

-			os.chmod(self.cookie_file, 0600)

-		else:

-			# Don't save cookies across runs of update.py.

-			self.cookie_jar = cookielib.CookieJar()

-		opener.add_handler(urllib2.HTTPCookieProcessor(self.cookie_jar))

-		return opener

-def GetRpcServer(options):

-	"""Returns an instance of an AbstractRpcServer.

-	Returns:

-		A new AbstractRpcServer, on which RPC calls can be made.

-	"""

-	rpc_server_class = HttpRpcServer

-	def GetUserCredentials():

-		"""Prompts the user for a username and password."""

-		# Disable status prints so they don't obscure the password prompt.

-		global global_status

-		st = global_status

-		global_status = None

-		email = options.email

-		if email is None:

-			email = GetEmail("Email (login for uploading to %s)" % options.server)

-		password = getpass.getpass("Password for %s: " % email)

-		# Put status back.

-		global_status = st

-		return (email, password)

-	# If this is the dev_appserver, use fake authentication.

-	host = (options.host or options.server).lower()

-	if host == "localhost" or host.startswith("localhost:"):

-		email = options.email

-		if email is None:

-			email = "test@example.com"

-			logging.info("Using debug user %s.  Override with --email" % email)

-		server = rpc_server_class(

-				options.server,

-				lambda: (email, "password"),

-				host_override=options.host,

-				extra_headers={"Cookie": 'dev_appserver_login="%s:False"' % email},

-				save_cookies=options.save_cookies)

-		# Don't try to talk to ClientLogin.

-		server.authenticated = True

-		return server

-	return rpc_server_class(options.server, GetUserCredentials,

-		host_override=options.host, save_cookies=options.save_cookies)

-def EncodeMultipartFormData(fields, files):

-	"""Encode form fields for multipart/form-data.

-	Args:

-		fields: A sequence of (name, value) elements for regular form fields.

-		files: A sequence of (name, filename, value) elements for data to be

-					uploaded as files.

-	Returns:

-		(content_type, body) ready for httplib.HTTP instance.

-	Source:

-		http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/146306

-	"""

-	BOUNDARY = '-M-A-G-I-C---B-O-U-N-D-A-R-Y-'

-	CRLF = '\r\n'

-	lines = []

-	for (key, value) in fields:

-		typecheck(key, str)

-		typecheck(value, str)

-		lines.append('--' + BOUNDARY)

-		lines.append('Content-Disposition: form-data; name="%s"' % key)

-		lines.append('')

-		lines.append(value)

-	for (key, filename, value) in files:

-		typecheck(key, str)

-		typecheck(filename, str)

-		typecheck(value, str)

-		lines.append('--' + BOUNDARY)

-		lines.append('Content-Disposition: form-data; name="%s"; filename="%s"' % (key, filename))

-		lines.append('Content-Type: %s' % GetContentType(filename))

-		lines.append('')

-		lines.append(value)

-	lines.append('--' + BOUNDARY + '--')

-	lines.append('')

-	body = CRLF.join(lines)

-	content_type = 'multipart/form-data; boundary=%s' % BOUNDARY

-	return content_type, body

-def GetContentType(filename):

-	"""Helper to guess the content-type from the filename."""

-	return mimetypes.guess_type(filename)[0] or 'application/octet-stream'

-# Use a shell for subcommands on Windows to get a PATH search.

-use_shell = sys.platform.startswith("win")

-def RunShellWithReturnCode(command, print_output=False,

-		universal_newlines=True, env=os.environ):

-	"""Executes a command and returns the output from stdout and the return code.

-	Args:

-		command: Command to execute.

-		print_output: If True, the output is printed to stdout.

-			If False, both stdout and stderr are ignored.

-		universal_newlines: Use universal_newlines flag (default: True).

-	Returns:

-		Tuple (output, return code)

-	"""

-	logging.info("Running %s", command)

-	p = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE,

-		shell=use_shell, universal_newlines=universal_newlines, env=env)

-	if print_output:

-		output_array = []

-		while True:

-			line = p.stdout.readline()

-			if not line:

-				break

-			print line.strip("\n")

-			output_array.append(line)

-		output = "".join(output_array)

-	else:

-		output = p.stdout.read()

-	p.wait()

-	errout = p.stderr.read()

-	if print_output and errout:

-		print >>sys.stderr, errout

-	p.stdout.close()

-	p.stderr.close()

-	return output, p.returncode

-def RunShell(command, silent_ok=False, universal_newlines=True,

-		print_output=False, env=os.environ):

-	data, retcode = RunShellWithReturnCode(command, print_output, universal_newlines, env)

-	if retcode:

-		ErrorExit("Got error status from %s:\n%s" % (command, data))

-	if not silent_ok and not data:

-		ErrorExit("No output from %s" % command)

-	return data

-class VersionControlSystem(object):

-	"""Abstract base class providing an interface to the VCS."""

-	def __init__(self, options):

-		"""Constructor.

-		Args:

-			options: Command line options.

-		"""

-		self.options = options

-	def GenerateDiff(self, args):

-		"""Return the current diff as a string.

-		Args:

-			args: Extra arguments to pass to the diff command.

-		"""

-		raise NotImplementedError(

-				"abstract method -- subclass %s must override" % self.__class__)

-	def GetUnknownFiles(self):

-		"""Return a list of files unknown to the VCS."""

-		raise NotImplementedError(

-				"abstract method -- subclass %s must override" % self.__class__)

-	def CheckForUnknownFiles(self):

-		"""Show an "are you sure?" prompt if there are unknown files."""

-		unknown_files = self.GetUnknownFiles()

-		if unknown_files:

-			print "The following files are not added to version control:"

-			for line in unknown_files:

-				print line

-			prompt = "Are you sure to continue?(y/N) "

-			answer = raw_input(prompt).strip()

-			if answer != "y":

-				ErrorExit("User aborted")

-	def GetBaseFile(self, filename):

-		"""Get the content of the upstream version of a file.

-		Returns:

-			A tuple (base_content, new_content, is_binary, status)

-				base_content: The contents of the base file.

-				new_content: For text files, this is empty.  For binary files, this is

-					the contents of the new file, since the diff output won't contain

-					information to reconstruct the current file.

-				is_binary: True iff the file is binary.

-				status: The status of the file.

-		"""

-		raise NotImplementedError(

-				"abstract method -- subclass %s must override" % self.__class__)

-	def GetBaseFiles(self, diff):

-		"""Helper that calls GetBase file for each file in the patch.

-		Returns:

-			A dictionary that maps from filename to GetBaseFile's tuple.  Filenames

-			are retrieved based on lines that start with "Index:" or

-			"Property changes on:".

-		"""

-		files = {}

-		for line in diff.splitlines(True):

-			if line.startswith('Index:') or line.startswith('Property changes on:'):

-				unused, filename = line.split(':', 1)

-				# On Windows if a file has property changes its filename uses '\'

-				# instead of '/'.

-				filename = to_slash(filename.strip())

-				files[filename] = self.GetBaseFile(filename)

-		return files

-	def UploadBaseFiles(self, issue, rpc_server, patch_list, patchset, options,

-											files):

-		"""Uploads the base files (and if necessary, the current ones as well)."""

-		def UploadFile(filename, file_id, content, is_binary, status, is_base):

-			"""Uploads a file to the server."""

-			set_status("uploading " + filename)

-			file_too_large = False

-			if is_base:

-				type = "base"

-			else:

-				type = "current"

-			if len(content) > MAX_UPLOAD_SIZE:

-				print ("Not uploading the %s file for %s because it's too large." %

-							(type, filename))

-				file_too_large = True

-				content = ""

-			checksum = md5(content).hexdigest()

-			if options.verbose > 0 and not file_too_large:

-				print "Uploading %s file for %s" % (type, filename)

-			url = "/%d/upload_content/%d/%d" % (int(issue), int(patchset), file_id)

-			form_fields = [

-				("filename", filename),

-				("status", status),

-				("checksum", checksum),

-				("is_binary", str(is_binary)),

-				("is_current", str(not is_base)),

-			]

-			if file_too_large:

-				form_fields.append(("file_too_large", "1"))

-			if options.email:

-				form_fields.append(("user", options.email))

-			ctype, body = EncodeMultipartFormData(form_fields, [("data", filename, content)])

-			response_body = rpc_server.Send(url, body, content_type=ctype)

-			if not response_body.startswith("OK"):

-				StatusUpdate("  --> %s" % response_body)

-				sys.exit(1)

-		# Don't want to spawn too many threads, nor do we want to

-		# hit Rietveld too hard, or it will start serving 500 errors.

-		# When 8 works, it's no better than 4, and sometimes 8 is

-		# too many for Rietveld to handle.

-		MAX_PARALLEL_UPLOADS = 4

-		sema = threading.BoundedSemaphore(MAX_PARALLEL_UPLOADS)

-		upload_threads = []

-		finished_upload_threads = []

-		class UploadFileThread(threading.Thread):

-			def __init__(self, args):

-				threading.Thread.__init__(self)

-				self.args = args

-			def run(self):

-				UploadFile(*self.args)

-				finished_upload_threads.append(self)

-				sema.release()

-		def StartUploadFile(*args):

-			sema.acquire()

-			while len(finished_upload_threads) > 0:

-				t = finished_upload_threads.pop()

-				upload_threads.remove(t)

-				t.join()

-			t = UploadFileThread(args)

-			upload_threads.append(t)

-			t.start()

-		def WaitForUploads():

-			for t in upload_threads:

-				t.join()

-		patches = dict()

-		[patches.setdefault(v, k) for k, v in patch_list]

-		for filename in patches.keys():

-			base_content, new_content, is_binary, status = files[filename]

-			file_id_str = patches.get(filename)

-			if file_id_str.find("nobase") != -1:

-				base_content = None

-				file_id_str = file_id_str[file_id_str.rfind("_") + 1:]

-			file_id = int(file_id_str)

-			if base_content != None:

-				StartUploadFile(filename, file_id, base_content, is_binary, status, True)

-			if new_content != None:

-				StartUploadFile(filename, file_id, new_content, is_binary, status, False)

-		WaitForUploads()

-	def IsImage(self, filename):

-		"""Returns true if the filename has an image extension."""

-		mimetype =  mimetypes.guess_type(filename)[0]

-		if not mimetype:

-			return False

-		return mimetype.startswith("image/")

-	def IsBinary(self, filename):

-		"""Returns true if the guessed mimetyped isnt't in text group."""

-		mimetype = mimetypes.guess_type(filename)[0]

-		if not mimetype:

-			return False  # e.g. README, "real" binaries usually have an extension

-		# special case for text files which don't start with text/

-		if mimetype in TEXT_MIMETYPES:

-			return False

-		return not mimetype.startswith("text/")

-class FakeMercurialUI(object):

-	def __init__(self):

-		self.quiet = True

-		self.output = ''

-	def write(self, *args, **opts):

-		self.output += ' '.join(args)

-	def copy(self):

-		return self

-	def status(self, *args, **opts):

-		pass

-	def formatter(self, topic, opts):

-		from mercurial.formatter import plainformatter

-		return plainformatter(self, topic, opts)

-	def readconfig(self, *args, **opts):

-		pass

-	def expandpath(self, *args, **opts):

-		return global_ui.expandpath(*args, **opts)

-	def configitems(self, *args, **opts):

-		return global_ui.configitems(*args, **opts)

-	def config(self, *args, **opts):

-		return global_ui.config(*args, **opts)

-use_hg_shell = False	# set to True to shell out to hg always; slower

-class MercurialVCS(VersionControlSystem):

-	"""Implementation of the VersionControlSystem interface for Mercurial."""

-	def __init__(self, options, ui, repo):

-		super(MercurialVCS, self).__init__(options)

-		self.ui = ui

-		self.repo = repo

-		self.status = None

-		# Absolute path to repository (we can be in a subdir)

-		self.repo_dir = os.path.normpath(repo.root)

-		# Compute the subdir

-		cwd = os.path.normpath(os.getcwd())

-		assert cwd.startswith(self.repo_dir)

-		self.subdir = cwd[len(self.repo_dir):].lstrip(r"\/")

-		if self.options.revision:

-			self.base_rev = self.options.revision

-		else:

-			mqparent, err = RunShellWithReturnCode(['hg', 'log', '--rev', 'qparent', '--template={node}'])

-			if not err and mqparent != "":

-				self.base_rev = mqparent

-			else:

-				out = RunShell(["hg", "parents", "-q"], silent_ok=True).strip()

-				if not out:

-					# No revisions; use 0 to mean a repository with nothing.

-					out = "0:0"

-				self.base_rev = out.split(':')[1].strip()

-	def _GetRelPath(self, filename):

-		"""Get relative path of a file according to the current directory,

-		given its logical path in the repo."""

-		assert filename.startswith(self.subdir), (filename, self.subdir)

-		return filename[len(self.subdir):].lstrip(r"\/")

-	def GenerateDiff(self, extra_args):

-		# If no file specified, restrict to the current subdir

-		extra_args = extra_args or ["."]

-		cmd = ["hg", "diff", "--git", "-r", self.base_rev] + extra_args

-		data = RunShell(cmd, silent_ok=True)

-		svndiff = []

-		filecount = 0

-		for line in data.splitlines():

-			m = re.match("diff --git a/(\S+) b/(\S+)", line)

-			if m:

-				# Modify line to make it look like as it comes from svn diff.

-				# With this modification no changes on the server side are required

-				# to make upload.py work with Mercurial repos.

-				# NOTE: for proper handling of moved/copied files, we have to use

-				# the second filename.

-				filename = m.group(2)

-				svndiff.append("Index: %s" % filename)

-				svndiff.append("=" * 67)

-				filecount += 1

-				logging.info(line)

-			else:

-				svndiff.append(line)

-		if not filecount:

-			ErrorExit("No valid patches found in output from hg diff")

-		return "\n".join(svndiff) + "\n"

-	def GetUnknownFiles(self):

-		"""Return a list of files unknown to the VCS."""

-		args = []

-		status = RunShell(["hg", "status", "--rev", self.base_rev, "-u", "."],

-				silent_ok=True)

-		unknown_files = []

-		for line in status.splitlines():

-			st, fn = line.split(" ", 1)

-			if st == "?":

-				unknown_files.append(fn)

-		return unknown_files

-	def get_hg_status(self, rev, path):

-		# We'd like to use 'hg status -C path', but that is buggy

-		# (see http://mercurial.selenic.com/bts/issue3023).

-		# Instead, run 'hg status -C' without a path

-		# and skim the output for the path we want.

-		if self.status is None:

-			if use_hg_shell:

-				out = RunShell(["hg", "status", "-C", "--rev", rev])

-			else:

-				fui = FakeMercurialUI()

-				ret = hg_commands.status(fui, self.repo, *[], **{'rev': [rev], 'copies': True})

-				if ret:

-					raise hg_util.Abort(ret)

-				out = fui.output

-			self.status = out.splitlines()

-		for i in range(len(self.status)):

-			# line is

-			#	A path

-			#	M path

-			# etc

-			line = to_slash(self.status[i])

-			if line[2:] == path:

-				if i+1 < len(self.status) and self.status[i+1][:2] == '  ':

-					return self.status[i:i+2]

-				return self.status[i:i+1]

-		raise hg_util.Abort("no status for " + path)

-	def GetBaseFile(self, filename):

-		set_status("inspecting " + filename)

-		# "hg status" and "hg cat" both take a path relative to the current subdir

-		# rather than to the repo root, but "hg diff" has given us the full path

-		# to the repo root.

-		base_content = ""

-		new_content = None

-		is_binary = False

-		oldrelpath = relpath = self._GetRelPath(filename)

-		out = self.get_hg_status(self.base_rev, relpath)

-		status, what = out[0].split(' ', 1)

-		if len(out) > 1 and status == "A" and what == relpath:

-			oldrelpath = out[1].strip()

-			status = "M"

-		if ":" in self.base_rev:

-			base_rev = self.base_rev.split(":", 1)[0]

-		else:

-			base_rev = self.base_rev

-		if status != "A":

-			if use_hg_shell:

-				base_content = RunShell(["hg", "cat", "-r", base_rev, oldrelpath], silent_ok=True)

-			else:

-				base_content = str(self.repo[base_rev][oldrelpath].data())

-			is_binary = "\0" in base_content  # Mercurial's heuristic

-		if status != "R":

-			new_content = open(relpath, "rb").read()

-			is_binary = is_binary or "\0" in new_content

-		if is_binary and base_content and use_hg_shell:

-			# Fetch again without converting newlines

-			base_content = RunShell(["hg", "cat", "-r", base_rev, oldrelpath],

-				silent_ok=True, universal_newlines=False)

-		if not is_binary or not self.IsImage(relpath):

-			new_content = None

-		return base_content, new_content, is_binary, status

-# NOTE: The SplitPatch function is duplicated in engine.py, keep them in sync.

-def SplitPatch(data):

-	"""Splits a patch into separate pieces for each file.

-	Args:

-		data: A string containing the output of svn diff.

-	Returns:

-		A list of 2-tuple (filename, text) where text is the svn diff output

-			pertaining to filename.

-	"""

-	patches = []

-	filename = None

-	diff = []

-	for line in data.splitlines(True):

-		new_filename = None

-		if line.startswith('Index:'):

-			unused, new_filename = line.split(':', 1)

-			new_filename = new_filename.strip()

-		elif line.startswith('Property changes on:'):

-			unused, temp_filename = line.split(':', 1)

-			# When a file is modified, paths use '/' between directories, however

-			# when a property is modified '\' is used on Windows.  Make them the same

-			# otherwise the file shows up twice.

-			temp_filename = to_slash(temp_filename.strip())

-			if temp_filename != filename:

-				# File has property changes but no modifications, create a new diff.

-				new_filename = temp_filename

-		if new_filename:

-			if filename and diff:

-				patches.append((filename, ''.join(diff)))

-			filename = new_filename

-			diff = [line]

-			continue

-		if diff is not None:

-			diff.append(line)

-	if filename and diff:

-		patches.append((filename, ''.join(diff)))

-	return patches

-def UploadSeparatePatches(issue, rpc_server, patchset, data, options):

-	"""Uploads a separate patch for each file in the diff output.

-	Returns a list of [patch_key, filename] for each file.

-	"""

-	patches = SplitPatch(data)

-	rv = []

-	for patch in patches:

-		set_status("uploading patch for " + patch[0])

-		if len(patch[1]) > MAX_UPLOAD_SIZE:

-			print ("Not uploading the patch for " + patch[0] +

-				" because the file is too large.")

-			continue

-		form_fields = [("filename", patch[0])]

-		if not options.download_base:

-			form_fields.append(("content_upload", "1"))

-		files = [("data", "data.diff", patch[1])]

-		ctype, body = EncodeMultipartFormData(form_fields, files)

-		url = "/%d/upload_patch/%d" % (int(issue), int(patchset))

-		print "Uploading patch for " + patch[0]

-		response_body = rpc_server.Send(url, body, content_type=ctype)

-		lines = response_body.splitlines()

-		if not lines or lines[0] != "OK":

-			StatusUpdate("  --> %s" % response_body)

-			sys.exit(1)

-		rv.append([lines[1], patch[0]])

-	return rv