remove the obsolete lib/codereview.

Change-Id: Idd2e74053ce4a2be3d757aef1bb83313973de6f0
Reviewed-on: https://go-review.googlesource.com/1175
Reviewed-by: Andrew Gerrand <adg@golang.org>

3 files changed, 0 insertions, 3895 deletions

diff --git a/lib/codereview/codereview.cfg b/lib/codereview/codereview.cfg
deleted file mode 100644
index 43dbf3ce3b8..00000000000
--- a/lib/codereview/codereview.cfg
+++ /dev/null
@@ -1,2 +0,0 @@
-defaultcc: golang-codereviews@googlegroups.com
-contributors: http://go.googlecode.com/hg/CONTRIBUTORS
diff --git a/lib/codereview/codereview.py b/lib/codereview/codereview.py
deleted file mode 100644
index 0c9b27a318e..00000000000
--- a/lib/codereview/codereview.py
+++ /dev/null
@@ -1,3694 +0,0 @@
-# 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
-
-# bind Plan 9 preferred dotfile location
-if os.sys.platform == 'plan9':
-	try:
-		import plan9
-		n = plan9.bind(os.path.expanduser("~/lib"), os.path.expanduser("~"), plan9.MBEFORE|plan9.MCREATE)
-	except ImportError:
-		pass
-
-defaultcc = None
-codereview_disabled = None
-real_rollback = None
-releaseBranch = None
-server = "codereview.appspot.com"
-server_url_base = None
-testing = 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):
-	if verbosity > 0:
-		print >>sys.stderr, 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, ui, repo):
-		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 branch_prefix(ui, repo) + 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(ui, repo)))
-		
-		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:]]
-		else:
-			print >>sys.stderr, "Server says there is nothing to upload (probably wrong):\n" + msg
-		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 patchset != "1":
-			MySend("/" + issue + "/upload_complete/" + patchset, payload="")
-		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"
-			branch = repo[None].branch()
-			if branch.startswith("dev."):
-				pmsg += " the " + branch + " branch of"
-			pmsg += "\n" + repourl + "\n"
-		else:
-			pmsg += "Please take another look.\n"
-		typecheck(pmsg, str)
-		PostMessage(ui, self.name, pmsg, subject=self.Subject(ui, repo))
-		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):
-	seen = {}
-	uniq = []
-	for s in l:
-		typecheck(s, str)
-		if s not in seen:
-			seen[s] = True
-			uniq.append(s)
-			
-	return ", ".join(uniq)
-
-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 or m.get('disapproval', False) == True:
-				who = re.sub('@.*', '', m.get('sender', ''))
-				text = re.sub("\n(.|\n)*", '', m.get('text', ''))
-				cl.lgtm.append((who, text, m.get('approval', False)))
-
-	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):
-	if hgversion >= "2.7":
-		return ui.promptchoice(msg + " $$ &yes $$ &no", 0) == 0
-	else:
-		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, op="verb", 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 (use hg %s <number> to use existing CL)" % op
-	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 and not cl.private:
-		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(