tcodereview: delete, now using GitHub pull requests - plan9port - [fork] Plan 9 from user space
 (HTM) git clone git://src.adamsgaard.dk/plan9port
 (DIR) Log
 (DIR) Files
 (DIR) Refs
 (DIR) README
 (DIR) LICENSE
       ---
 (DIR) commit 6cb3a2b9c3cf191c613985fc893c8a88a9b6d76f
 (DIR) parent a83f4518e6dca293847ffad0e234619ad1109406
 (HTM) Author: Russ Cox <rsc@swtch.com>
       Date:   Fri,  1 Sep 2017 13:16:12 -0400
       
       codereview: delete, now using GitHub pull requests
       
       Diffstat:
         M CONTRIBUTING.md                     |       8 ++------
         D bin/codereview                      |     147 -------------------------------
         D lib/codereview/codereview.cfg       |       1 -
         D lib/codereview/codereview.py        |    3635 -------------------------------
         D man/man1/codereview.1               |     155 -------------------------------
       
       5 files changed, 2 insertions(+), 3944 deletions(-)
       ---
 (DIR) diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
       t@@ -1,7 +1,3 @@
       -Plan 9 from User Space uses Gerrit instead of GitHub pull requests.
       -See the [codereview(1)](http://swtch.com/plan9port/man/man1/codereview.html) man page.
       -
       -If you would like to use git directly instead of the codereview(1) wrapper, that is fine too.
       -Follow the instructions on the RE2 [Contributing](https://github.com/google/re2/wiki/Contribute) wiki page,
       -but use https://plan9port.googlesource.com/plan9 as the origin URL.
       +Plan 9 from User Space accepts GitHub pull requests.
        
       +For details, see the general [GitHub documentation](https://help.github.com/articles/creating-a-pull-request/).
 (DIR) diff --git a/bin/codereview b/bin/codereview
       t@@ -1,147 +0,0 @@
       -#!/usr/local/plan9/bin/rc
       -
       -git=git
       -show=false
       -fn gitshow {
       -        echo '%' git $*
       -        git $*
       -}
       -if(! ~ $#* 0 && ~ $1 -v) {
       -        git=gitshow
       -        show=true
       -        shift
       -}
       -        
       -if(~ $#* 0) {
       -        echo 'usage: codereview <command> <args>' >[1=2]
       -        exit usage
       -}
       -
       -if(~ $#PLAN9 0) {
       -        PLAN9=/usr/local/plan9
       -}
       -if(! test -d $PLAN9/lib/git) {
       -        echo 'codereview: cannot find $PLAN9/lib/git' >[1=2]
       -        exit git
       -}
       -
       -if(! test -e $PLAN9/.git/hooks/commit-msg) {
       -        if($show) {
       -                echo '% ln -s ../../lib/git/commit-msg.hook $PLAN9/.git/hooks/commit-msg'
       -        }
       -        ln -s ../../lib/git/commit-msg.hook $PLAN9/.git/hooks/commit-msg
       -}
       -
       -switch($1) {
       -case help
       -        9 man 1 codereview
       -
       -case pending
       -        shift
       -        if(! ~ $#* 0) {
       -                echo 'usage: codereview pending' >[1=2]
       -                exit usage
       -        }
       -        $git branch -v
       -
       -case create
       -        shift
       -        if(~ $#* 0) {
       -                echo 'usage: codereview create branchname' >[1=2]
       -                exit usage
       -        }
       -        branch=$1
       -        shift
       -        if(! git branch -l | 9 grep '\* master$' >/dev/null) {
       -                echo 'codereview: create not on master branch; use codereview commit' >[1=2]
       -                exit master
       -        }
       -        if($show) {
       -                echo '% git branch '$branch' && git commit || git branch -d '$branch >[1=2]
       -        }
       -        git branch $branch && git checkout $branch && git commit -a $* || git branch -d $branch
       -
       -case commit
       -        shift
       -        if(git branch -l | 9 grep '\* master$' >/dev/null) {
       -                echo 'codereview: commit on master branch; use codereview create <branchname>' >[1=2]
       -                exit master
       -        }
       -        if(~ `{git merge-base HEAD HEAD} `{git merge-base HEAD master}) {
       -                # first commit on branch, somehow.
       -                $git commit $*
       -                exit $status
       -        }
       -        $git commit --amend -a $*
       -        exit $status
       -
       -case upload
       -        if(git branch -l | 9 grep '\* master$' >/dev/null) {
       -                echo 'codereview: upload on master branch' >[1=2]
       -                exit master
       -        }
       -        if(~ `{git merge-base HEAD HEAD} `{git merge-base HEAD master}) {
       -                # no commit on branch
       -                echo 'codereview: no commits yet on this feature branch' >[1=2]
       -                exit commit
       -        }
       -        if(! 9 grep 'machine plan9port-review.googlesource.com' $HOME/.netrc >/dev/null >[2=1]) {
       -                echo 'codereview: warning: cannot find plan9port-review in netrc' >[1=2]
       -        }
       -        if(! git status | 9 grep 'nothing to commit, working directory clean' >/dev/null) {
       -                echo 'codereview: warning: local changes not yet committed' >[1=2]
       -                git status
       -        }
       -        $git push https://plan9port-review.googlesource.com/plan9 HEAD:refs/for/master >[2=1] | 9 sed 's/.*//'
       -
       -case sync
       -        shift
       -        if(! ~ $#* 0) {
       -                echo 'usage: codereview sync' >[1=2]
       -                exit usage
       -        }
       -        $git fetch -q
       -        
       -        branch=`{git branch -l | 9 sed -n 's/^\* //p'}
       -        if(~ $branch master) {
       -                $git merge -q --ff-only origin/master
       -                exit $status
       -        }
       -
       -        if(~ `{git merge-base HEAD HEAD} `{git merge-base HEAD master}) {
       -                # no commit on branch
       -                git merge -q --ff-only origin/master
       -                exit $status
       -        }
       -
       -        # Exactly this commit in master. Fast-forward from master and delete this branch.
       -        if(git branch -r --contains HEAD | 9 grep '^ *origin/master$' >/dev/null) {
       -                $git checkout -q master
       -                $git merge -q --ff-only origin/master
       -                $git branch -q -d $branch
       -                exit $status
       -        }
       -        
       -        changeid=`{git log -n 1 | 9 sed -n 's/^    Change-Id: //p'}
       -        if(~ $#changeid 0) {
       -                echo 'codereview: cannot find change id'
       -                exit changeid
       -        }
       -
       -        if(git log --grep 'Change-Id: '$changeid origin/master | 9 grep . >/dev/null) {
       -                # Something like this got submitted.
       -                $git checkout -q master
       -                $git merge -q --ff-only origin/master
       -                echo 'Change submitted but perhaps not identical to your copy.' >[1=2]
       -                echo 'To remove old copy:' git branch -d $branch >[1=2]
       -                exit 1
       -        }
       -        
       -        if(git branch -r --contains master | 9 grep '^ *origin/master$' >/dev/null)
       -                $git branch -f master origin/master
       -        $git rebase -q origin/master
       -
       -case *
       -        echo 'codereview: unrecognized command '$1 >[1=2]
       -        exit usage
       -}
 (DIR) diff --git a/lib/codereview/codereview.cfg b/lib/codereview/codereview.cfg
       t@@ -1 +0,0 @@
       -# defaultcc: plan9port-dev@googlegroups.com
 (DIR) diff --git a/lib/codereview/codereview.py b/lib/codereview/codereview.py
       t@@ -1,3635 +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
       -
       -#######################################################################
       -# 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):
       -                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:]]
       -                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 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):
       -        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:
       -                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 2.1.
       -# 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 = "2.1"
       -
       -old_message = """
       -
       -The code review extension requires Mercurial """+hg_required+""" or newer.
       -You are using Mercurial """+hgversion+""".
       -
       -To install a new Mercurial, 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_update(ui, repo, **opts):
       -        w = uiwrap(ui)
       -        ui.quiet = False
       -        ui.verbose = True  # for file list
       -        err = hg_commands.update(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 hgversion >= "2.1":
       -                from mercurial import phases
       -                if repo.ui.config('phases', 'new-commit') >= phases.secret:
       -                        return False
       -        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.
       -
       -def hgcommand(f):
       -        return f
       -
       -#######################################################################
       -# 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:
       -                raise hg_util.Abort(codereview_disabled)
       -        
       -        dirty = {}
       -        if len(pats) > 0 and GoodCLName(pats[0]):
       -                name = pats[0]
       -                if len(pats) != 1:
       -                        raise hg_util.Abort("cannot specify CL name and file patterns")
       -                pats = pats[1:]
       -                cl, err = LoadCL(ui, repo, name, web=True)
       -                if err != '':
       -                        raise hg_util.Abort(err)
       -                if not cl.local and (opts["stdin"] or not opts["stdout"]):
       -                        raise hg_util.Abort("cannot change non-local CL " + name)
       -        else:
       -                name = "new"
       -                cl = CL("new")
       -                if repo[None].branch() != "default":
       -                        raise hg_util.Abort("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"]:
       -                        raise hg_util.Abort("cannot use -d and -D together")
       -                flag = "-d"
       -                if opts["deletelocal"]:
       -                        flag = "-D"
       -                if name == "new":
       -                        raise hg_util.Abort("cannot use "+flag+" with file patterns")
       -                if opts["stdin"] or opts["stdout"]:
       -                        raise hg_util.Abort("cannot use "+flag+" with -i or -o")
       -                if not cl.local:
       -                        raise hg_util.Abort("cannot change non-local CL " + name)
       -                if opts["delete"]:
       -                        if cl.copied_from:
       -                                raise hg_util.Abort("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 != '':
       -                        raise hg_util.Abort("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 != "":
       -                        raise hg_util.Abort(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:
       -                raise hg_util.Abort(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":
       -                raise hg_util.Abort("cannot run hg clpatch outside default branch")
       -        err = clpatch_or_undo(ui, repo, clname, opts, mode="clpatch")
       -        if err:
       -                raise hg_util.Abort(err)
       -
       -@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":
       -                raise hg_util.Abort("cannot run hg undo outside default branch")
       -        err = clpatch_or_undo(ui, repo, clname, opts, mode="undo")
       -        if err:
       -                raise hg_util.Abort(err)
       -
       -@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:
       -                raise hg_util.Abort("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:
       -                        raise hg_util.Abort(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
       -
       -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)^https?://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_hgapplydiff_failure"]:
       -                                return "codereview issue %s is out of date: %s (%s->%s)" % (clname, err, vers, id)
       -                else:
       -                        patch = patch1
       -        argv = ["hgapplydiff"]
       -        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 "hgapplydiff: " + ExceptionDetail() + "\nInstall hgapplydiff with:\n$ go get code.google.com/p/go.codereview/cmd/hgapplydiff\n"
       -
       -        out, err = cmd.communicate(patch)
       -        if cmd.returncode != 0 and not opts["ignore_hgapplydiff_failure"]:
       -                return "hgapplydiff failed"
       -        cl.local = True
       -        cl.files = out.strip().split()
       -        if not cl.files and not opts["ignore_hgapplydiff_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")
       -
       -        # warn if clpatch will modify file already in another CL (it's unsafe to submit them)
       -        if mode == "clpatch":
       -                msgs = []
       -                cls = LoadAllCL(ui, repo, web=False)
       -                for k, v in cls.iteritems():
       -                        isec = Intersect(v.files, cl.files)
       -                        if isec and k != clname:
       -                                msgs.append("CL " + k + ", because it also modifies " + ", ".join(isec) + ".")
       -                if msgs:
       -                        ui.warn("warning: please double check before submitting this CL and:\n\t" + "\n\t".join(msgs) + "\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:
       -                raise hg_util.Abort(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:
       -                raise hg_util.Abort(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:
       -                raise hg_util.Abort(codereview_disabled)
       -
       -        files = ChangedExistingFiles(ui, repo, pats, opts)
       -        files = gofmt_required(files)
       -        if not files:
       -                ui.status("no modified go files\n")
       -                return
       -        cwd = os.getcwd()
       -        files = [RelativePath(repo.root + '/' + f, cwd) for f in files]
       -        try:
       -                cmd = ["gofmt", "-l"]
       -                if not opts["list"]:
       -                        cmd += ["-w"]
       -                if subprocess.call(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:
       -                raise hg_util.Abort(codereview_disabled)
       -
       -        cl, err = CommandLineCL(ui, repo, pats, opts, op="mail", defaultcc=defaultcc)
       -        if err != "":
       -                raise hg_util.Abort(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:
       -                        raise hg_util.Abort("no reviewers listed in CL")
       -                cl.cc = Sub(cl.cc, defaultcc)
       -                cl.reviewer = defaultcc
       -                cl.Flush(ui, repo)
       -
       -        if cl.files == []:
       -                        raise hg_util.Abort("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:
       -                raise hg_util.Abort(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 0
       -        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:
       -                raise hg_util.Abort(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, op="submit", defaultcc=defaultcc)
       -        if err != "":
       -                raise hg_util.Abort(err)
       -
       -        user = None
       -        if cl.copied_from:
       -                user = cl.copied_from
       -        userline = CheckContributor(ui, repo, user)
       -        typecheck(userline, str)
       -
       -        about = ""
       -
       -        if not cl.lgtm and not opts.get('tbr') and not isAddca(cl):
       -                raise hg_util.Abort("this CL has not been LGTM'ed")
       -        if cl.lgtm:
       -                about += "LGTM=" + JoinComma([CutDomain(who) for (who, line, approval) in cl.lgtm if approval]) + "\n"
       -        reviewer = cl.reviewer
       -        if opts.get('tbr'):
       -                tbr = SplitCommaSpace(opts.get('tbr'))
       -                for name in tbr:
       -                        if name.startswith('golang-'):
       -                                raise hg_util.Abort("--tbr requires a person, not a mailing list")
       -                cl.reviewer = Add(cl.reviewer, tbr)
       -                about += "TBR=" + JoinComma([CutDomain(s) for s in tbr]) + "\n"
       -        if reviewer:
       -                about += "R=" + JoinComma([CutDomain(s) for s in reviewer]) + "\n"
       -        if cl.cc:
       -                about += "CC=" + JoinComma([CutDomain(s) for s in cl.cc]) + "\n"
       -
       -        if not cl.reviewer:
       -                raise hg_util.Abort("no reviewers listed in CL")
       -
       -        if not cl.local:
       -                raise hg_util.Abort("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:
       -                raise hg_util.Abort("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:
       -                        if hg_push(ui, repo):
       -                                raise hg_util.Abort("push error")
       -                except hg_error.Abort, e:
       -                        if e.message.find("push creates new heads") >= 0:
       -                                # Remote repository had changes we missed.
       -                                need_sync()
       -                        raise
       -                except urllib2.HTTPError, e:
       -                        print >>sys.stderr, "pushing to remote server failed; do you have commit permissions?"
       -                        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 = "https://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 = "https://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 = "https://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 0
       -
       -def isAddca(cl):
       -        rev = cl.reviewer
       -        isGobot = 'gobot' in rev or 'gobot@swtch.com' in rev or 'gobot@golang.org' in rev
       -        return cl.desc.startswith('A+C:') and 'Generated by addca.' in cl.desc and isGobot
       -
       -#######################################################################
       -# 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:
       -                raise hg_util.Abort(codereview_disabled)
       -
       -        if not opts["local"]:
       -                # If there are incoming CLs, pull -u will do the update.
       -                # If there are no incoming CLs, do hg update to make sure
       -                # that an update always happens regardless. This is less
       -                # surprising than update depending on incoming CLs.
       -                # It is important not to do both hg pull -u and hg update
       -                # in the same command, because the hg update will end
       -                # up marking resolve conflicts from the hg pull -u as resolved,
       -                # causing files with <<< >>> markers to not show up in 
       -                # hg resolve -l. Yay Mercurial.
       -                if hg_incoming(ui, repo):
       -                        err = hg_pull(ui, repo, update=True)
       -                else:
       -                        err = hg_update(ui, repo)
       -                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)^https?://(?:[^\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 0
       -
       -#######################################################################
       -# 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:
       -                raise hg_util.Abort(codereview_disabled)
       -
       -        repo.ui.quiet = True
       -        cl, err = LoadCL(ui, repo, name, web=True)
       -        if err != "":
       -                raise hg_util.Abort(err)
       -        if not cl.local:
       -                raise hg_util.Abort("cannot upload non-local change")
       -        cl.Upload(ui, repo)
       -        print "%s%s\n" % (server_url_base, cl.name)
       -        return 0
       -
       -#######################################################################
       -# 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_hgapplydiff_failure', None, 'create CL metadata even if hgapplydiff 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_hgapplydiff_failure', None, 'create CL metadata even if hgapplydiff 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_hgapplydiff_failure', None, 'create CL metadata even if hgapplydiff 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
       -        start_status_thread()
       -
       -        # 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 [^*]*?r=([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
       -        if timeout is None:
       -                timeout = 30 # seconds
       -
       -        old_timeout = socket.getdefaulttimeout()
       -        socket.setdefaulttimeout(timeout)
       -        try:
       -                tries = 0
       -                while True:
       -                        tries += 1
       -                        args = dict(kwargs)
       -                        url = "https://%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 = "https://" + 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.branchmap().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
       -                # .reason is now a read-only property based on .msg
       -                # this means we ignore 'msg', but that seems to work fine.
       -                self.msg = 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("https://%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.msg == "BadAuthentication":
       -                                        print >>sys.stderr, "Invalid username or password."
       -                                        continue
       -                                if e.msg == "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.msg == "NotVerified":
       -                                        print >>sys.stderr, "Account not verified."
       -                                        break
       -                                if e.msg == "TermsNotAgreed":
       -                                        print >>sys.stderr, "User has not agreed to TOS."
       -                                        break
       -                                if e.msg == "AccountDeleted":
       -                                        print >>sys.stderr, "The user account has been deleted."
       -                                        break
       -                                if e.msg == "AccountDisabled":
       -                                        print >>sys.stderr, "The user account has been disabled."
       -                                        break
       -                                if e.msg == "ServiceDisabled":
       -                                        print >>sys.stderr, "The user's access to the service has been disabled."
       -                                        break
       -                                if e.msg == "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 = "https://%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
 (DIR) diff --git a/man/man1/codereview.1 b/man/man1/codereview.1
       t@@ -1,155 +0,0 @@
       -.TH CODEREVIEW 1
       -.SH NAME
       -codereview \- review of submitted changes (experimental)
       -.SH SYNOPSIS
       -.B git
       -.B diff
       -.B HEAD
       -.I path ...
       -.PP
       -.B codereview
       -[
       -.B -v
       -]
       -.B create
       -.I name
       -.PP
       -.B codereview
       -[
       -.B -v
       -]
       -.B commit
       -.PP
       -.B codereview
       -[
       -.B -v
       -]
       -.B upload
       -.PP
       -.B codereview
       -[
       -.B -v
       -]
       -.B pending
       -.PP
       -.B codereview
       -[
       -.B -v
       -]
       -.B sync
       -.SH DESCRIPTION
       -.I Codereview
       -manages the review and submission of changes to the Plan 9 from User Space project.
       -It must be used from within a Plan 9 from User Space tree
       -checked out via Git
       -(see
       -.IR git (1)).
       -.PP
       -A developer makes changes to a local copy of the tree,
       -reviews them by using
       -.I git
       -.I diff
       -.IR HEAD 
       -and then commits them to a ``feature branch''
       -using
       -.I codereview
       -.IR create .
       -Once a feature branch is created, files can still be edited, but they must then be
       -incorporated into the change by using
       -.I codereview
       -.IR commit .
       -.I Git
       -requires that changes be added to a ``staging area'' before the initial commit,
       -using commands such as
       -.I git
       -.I add
       -and
       -.I git
       -.IR rm .
       -The 
       -.I codereview
       -.I create
       -and
       -.I codereview
       -.I commit
       -commands
       -automatically move all local modifications to the staging area
       -as part of the commit,
       -using
       -.I git
       -.I commit
       -.IR -a .
       -.PP
       -If other changes have been committed since the feature branch was created,
       -.I codereview
       -.I sync
       -will update it to be based on the most recent copy of the repository.
       -.PP
       -When the code is ready for review,
       -.I codereview
       -.I upload
       -uploads the change to 
       -.HR https://plan9port-review.googlesource.com/
       -for review.
       -In order to upload, 
       -.I git
       -must have access to a 
       -.I $HOME/.netrc
       -that contains a password obtained from
       -.HR https://plan9port-review.googlesource.com/#/settings/http-password .
       -.PP
       -The most likely initial result of a code review is suggestions for
       -improving the code.
       -After making those changes, repeat the
       -.I codereview
       -.I commit
       -and 
       -.I codereview
       -.I upload
       -steps.
       -.PP
       -Once the code is ready, it will be submitted by the reviewer using the web interface.
       -At that point,
       -.I codereview
       -.I sync
       -.PP
       -The
       -.I codereview
       -.I pending
       -command lists the active feature branches.
       -.PP
       -All the
       -.I codereview
       -commands take a leading
       -.B -v
       -option, which causes them to print
       -.I git
       -commands being executed.
       -This can be useful for debugging
       -.IR codereview .
       -.PP
       -The
       -.I codereview
       -command depends on a 
       -.I git
       -``commit hook''
       -script being in place to add
       -.L Change-Id
       -lines to the commit messages.
       -.I Codereview
       -installs the hook at startup, if necessary,
       -by adding a symbolic link from
       -.B $PLAN9/.git/hooks/commit-msg
       -to
       -.BR $PLAN9/lib/git/commit-msg.hook .
       -.SH SEE ALSO
       -.IR git (1),
       -.HR http://plan9port-review.googlesource.com/
       -.SH BUGS
       -.I Git
       -is too complicated to use.
       -The 
       -.I codereview
       -script helps, but a working understanding of
       -.I git
       -is still required.