URI: 
       tcodereview.py: remove - plan9port - [fork] Plan 9 from user space
  HTML git clone git://src.adamsgaard.dk/plan9port
   DIR Log
   DIR Files
   DIR Refs
   DIR README
   DIR LICENSE
       ---
   DIR commit a18efdbab89f34ead735f572bb36b16a673dc265
   DIR parent b7488c5d326ce3e81fd827587c1b48fe5f30152b
  HTML Author: Russ Cox <rsc@swtch.com>
       Date:   Sat, 15 Jul 2017 20:49:34 -0600
       
       codereview.py: remove
       
       Change-Id: Ie548b7f45f4b3aa9897bcba19d343cff2dd5afd4
       Reviewed-on: https://plan9port-review.googlesource.com/2961
       Reviewed-by: Russ Cox <rsc@swtch.com>
       
       Diffstat:
         D bin/codereview.py                   |    1448 -------------------------------
       
       1 file changed, 0 insertions(+), 1448 deletions(-)
       ---
   DIR diff --git a/bin/codereview.py b/bin/codereview.py
       t@@ -1,1448 +0,0 @@
       -#!/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
       -
       -# Constants for version control names.  Used by GuessVCSName.
       -VCS_GIT = "Git"
       -VCS_MERCURIAL = "Mercurial"
       -VCS_SUBVERSION = "Subversion"
       -VCS_UNKNOWN = "Unknown"
       -
       -
       -def GetEmail(prompt):
       -  """Prompts the user for their email address and returns it.
       -
       -  The last used email address is saved to a file and offered up as a suggestion
       -  to the user. If the user presses enter without typing in anything the last
       -  used email address is used. If the user enters a new address, it is saved
       -  for next time we prompt.
       -
       -  """
       -  last_email_file_name = os.path.expanduser("~/.last_codereview_email_address")
       -  last_email = ""
       -  if os.path.exists(last_email_file_name):
       -    try:
       -      last_email_file = open(last_email_file_name, "r")
       -      last_email = last_email_file.readline().strip("\n")
       -      last_email_file.close()
       -      prompt += " [%s]" % last_email
       -    except IOError, e:
       -      pass
       -  email = raw_input(prompt + ": ").strip()
       -  if email:
       -    try:
       -      last_email_file = open(last_email_file_name, "w")
       -      last_email_file.write(email)
       -      last_email_file.close()
       -    except IOError, e:
       -      pass
       -  else:
       -    email = last_email
       -  return email
       -
       -
       -def StatusUpdate(msg):
       -  """Print a status message to stdout.
       -
       -  If 'verbosity' is greater than 0, print the message.
       -
       -  Args:
       -    msg: The string to print.
       -  """
       -  if verbosity > 0:
       -    print msg
       -
       -
       -def ErrorExit(msg):
       -  """Print an error message to stderr and exit."""
       -  print >>sys.stderr, msg
       -  sys.exit(1)
       -
       -
       -class ClientLoginError(urllib2.HTTPError):
       -  """Raised to indicate there was an error authenticating with ClientLogin."""
       -
       -  def __init__(self, url, code, msg, headers, args):
       -    urllib2.HTTPError.__init__(self, url, code, msg, headers, None)
       -    self.args = args
       -    self.reason = args["Error"]
       -
       -
       -class AbstractRpcServer(object):
       -  """Provides a common interface for a simple RPC server."""
       -
       -  def __init__(self, host, auth_function, host_override=None, extra_headers={},
       -               save_cookies=False):
       -    """Creates a new HttpRpcServer.
       -
       -    Args:
       -      host: The host to send requests to.
       -      auth_function: A function that takes no arguments and returns an
       -        (email, password) tuple when called. Will be called if authentication
       -        is required.
       -      host_override: The host header to send to the server (defaults to host).
       -      extra_headers: A dict of extra headers to append to every request.
       -      save_cookies: If True, save the authentication cookies to local disk.
       -        If False, use an in-memory cookiejar instead.  Subclasses must
       -        implement this functionality.  Defaults to False.
       -    """
       -    self.host = host
       -    self.host_override = host_override
       -    self.auth_function = auth_function
       -    self.authenticated = False
       -    self.extra_headers = extra_headers
       -    self.save_cookies = save_cookies
       -    self.opener = self._GetOpener()
       -    if self.host_override:
       -      logging.info("Server: %s; Host: %s", self.host, self.host_override)
       -    else:
       -      logging.info("Server: %s", self.host)
       -
       -  def _GetOpener(self):
       -    """Returns an OpenerDirector for making HTTP requests.
       -
       -    Returns:
       -      A urllib2.OpenerDirector object.
       -    """
       -    raise NotImplementedError()
       -
       -  def _CreateRequest(self, url, data=None):
       -    """Creates a new urllib request."""
       -    logging.debug("Creating request for: '%s' with payload:\n%s", url, data)
       -    req = urllib2.Request(url, data=data)
       -    if self.host_override:
       -      req.add_header("Host", self.host_override)
       -    for key, value in self.extra_headers.iteritems():
       -      req.add_header(key, value)
       -    return req
       -
       -  def _GetAuthToken(self, email, password):
       -    """Uses ClientLogin to authenticate the user, returning an auth token.
       -
       -    Args:
       -      email:    The user's email address
       -      password: The user's password
       -
       -    Raises:
       -      ClientLoginError: If there was an error authenticating with ClientLogin.
       -      HTTPError: If there was some other form of HTTP error.
       -
       -    Returns:
       -      The authentication token returned by ClientLogin.
       -    """
       -    account_type = "GOOGLE"
       -    if self.host.endswith(".google.com"):
       -      # Needed for use inside Google.
       -      account_type = "HOSTED"
       -    req = self._CreateRequest(
       -        url="https://www.google.com/accounts/ClientLogin",
       -        data=urllib.urlencode({
       -            "Email": email,
       -            "Passwd": password,
       -            "service": "ah",
       -            "source": "rietveld-codereview-upload",
       -            "accountType": account_type,
       -        }),
       -    )
       -    try:
       -      response = self.opener.open(req)
       -      response_body = response.read()
       -      response_dict = dict(x.split("=")
       -                           for x in response_body.split("\n") if x)
       -      return response_dict["Auth"]
       -    except urllib2.HTTPError, e:
       -      if e.code == 403:
       -        body = e.read()
       -        response_dict = dict(x.split("=", 1) for x in body.split("\n") if x)
       -        raise ClientLoginError(req.get_full_url(), e.code, e.msg,
       -                               e.headers, response_dict)
       -      else:
       -        raise
       -
       -  def _GetAuthCookie(self, auth_token):
       -    """Fetches authentication cookies for an authentication token.
       -
       -    Args:
       -      auth_token: The authentication token returned by ClientLogin.
       -
       -    Raises:
       -      HTTPError: If there was an error fetching the authentication cookies.
       -    """
       -    # This is a dummy value to allow us to identify when we're successful.
       -    continue_location = "http://localhost/"
       -    args = {"continue": continue_location, "auth": auth_token}
       -    req = self._CreateRequest("http://%s/_ah/login?%s" %
       -                              (self.host, urllib.urlencode(args)))
       -    try:
       -      response = self.opener.open(req)
       -    except urllib2.HTTPError, e:
       -      response = e
       -    if (response.code != 302 or
       -        response.info()["location"] != continue_location):
       -      raise urllib2.HTTPError(req.get_full_url(), response.code, response.msg,
       -                              response.headers, response.fp)
       -    self.authenticated = True
       -
       -  def _Authenticate(self):
       -    """Authenticates the user.
       -
       -    The authentication process works as follows:
       -     1) We get a username and password from the user
       -     2) We use ClientLogin to obtain an AUTH token for the user
       -        (see http://code.google.com/apis/accounts/AuthForInstalledApps.html).
       -     3) We pass the auth token to /_ah/login on the server to obtain an
       -        authentication cookie. If login was successful, it tries to redirect
       -        us to the URL we provided.
       -
       -    If we attempt to access the upload API without first obtaining an
       -    authentication cookie, it returns a 401 response and directs us to
       -    authenticate ourselves with ClientLogin.
       -    """
       -    for i in range(3):
       -      credentials = self.auth_function()
       -      try:
       -        auth_token = self._GetAuthToken(credentials[0], credentials[1])
       -      except ClientLoginError, e:
       -        if e.reason == "BadAuthentication":
       -          print >>sys.stderr, "Invalid username or password."
       -          continue
       -        if e.reason == "CaptchaRequired":
       -          print >>sys.stderr, (
       -              "Please go to\n"
       -              "https://www.google.com/accounts/DisplayUnlockCaptcha\n"
       -              "and verify you are a human.  Then try again.")
       -          break
       -        if e.reason == "NotVerified":
       -          print >>sys.stderr, "Account not verified."
       -          break
       -        if e.reason == "TermsNotAgreed":
       -          print >>sys.stderr, "User has not agreed to TOS."
       -          break
       -        if e.reason == "AccountDeleted":
       -          print >>sys.stderr, "The user account has been deleted."
       -          break
       -        if e.reason == "AccountDisabled":
       -          print >>sys.stderr, "The user account has been disabled."
       -          break
       -        if e.reason == "ServiceDisabled":
       -          print >>sys.stderr, ("The user's access to the service has been "
       -                               "disabled.")
       -          break
       -        if e.reason == "ServiceUnavailable":
       -          print >>sys.stderr, "The service is not available; try again later."
       -          break
       -        raise
       -      self._GetAuthCookie(auth_token)
       -      return
       -
       -  def Send(self, request_path, payload=None,
       -           content_type="application/octet-stream",
       -           timeout=None,
       -           **kwargs):
       -    """Sends an RPC and returns the response.
       -
       -    Args:
       -      request_path: The path to send the request to, eg /api/appversion/create.
       -      payload: The body of the request, or None to send an empty request.
       -      content_type: The Content-Type header to use.
       -      timeout: timeout in seconds; default None i.e. no timeout.
       -        (Note: for large requests on OS X, the timeout doesn't work right.)
       -      kwargs: Any keyword arguments are converted into query string parameters.
       -
       -    Returns:
       -      The response body, as a string.
       -    """
       -    # TODO: Don't require authentication.  Let the server say
       -    # whether it is necessary.
       -    if not self.authenticated:
       -      self._Authenticate()
       -
       -    old_timeout = socket.getdefaulttimeout()
       -    socket.setdefaulttimeout(timeout)
       -    try:
       -      tries = 0
       -      while True:
       -        tries += 1
       -        args = dict(kwargs)
       -        url = "http://%s%s" % (self.host, request_path)
       -        if args:
       -          url += "?" + urllib.urlencode(args)
       -        req = self._CreateRequest(url=url, data=payload)
       -        req.add_header("Content-Type", content_type)
       -        try:
       -          f = self.opener.open(req)
       -          response = f.read()
       -          f.close()
       -          return response
       -        except urllib2.HTTPError, e:
       -          if tries > 3:
       -            raise
       -          elif e.code == 401:
       -            self._Authenticate()
       -##           elif e.code >= 500 and e.code < 600:
       -##             # Server Error - try again.
       -##             continue
       -          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")
       -      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
       -
       -
       -parser = optparse.OptionParser(usage="%prog [options] [-- diff_options]")
       -parser.add_option("-y", "--assume_yes", action="store_true",
       -                  dest="assume_yes", default=False,
       -                  help="Assume that the answer to yes/no questions is 'yes'.")
       -# Logging
       -group = parser.add_option_group("Logging options")
       -group.add_option("-q", "--quiet", action="store_const", const=0,
       -                 dest="verbose", help="Print errors only.")
       -group.add_option("-v", "--verbose", action="store_const", const=2,
       -                 dest="verbose", default=1,
       -                 help="Print info level logs (default).")
       -group.add_option("--noisy", action="store_const", const=3,
       -                 dest="verbose", help="Print all logs.")
       -# Review server
       -group = parser.add_option_group("Review server options")
       -group.add_option("-s", "--server", action="store", dest="server",
       -                 default="codereview.appspot.com",
       -                 metavar="SERVER",
       -                 help=("The server to upload to. The format is host[:port]. "
       -                       "Defaults to '%default'."))
       -group.add_option("-e", "--email", action="store", dest="email",
       -                 metavar="EMAIL", default=None,
       -                 help="The username to use. Will prompt if omitted.")
       -group.add_option("-H", "--host", action="store", dest="host",
       -                 metavar="HOST", default=None,
       -                 help="Overrides the Host header sent with all RPCs.")
       -group.add_option("--no_cookies", action="store_false",
       -                 dest="save_cookies", default=True,
       -                 help="Do not save authentication cookies to local disk.")
       -# Issue
       -group = parser.add_option_group("Issue options")
       -group.add_option("-d", "--description", action="store", dest="description",
       -                 metavar="DESCRIPTION", default=None,
       -                 help="Optional description when creating an issue.")
       -group.add_option("-f", "--description_file", action="store",
       -                 dest="description_file", metavar="DESCRIPTION_FILE",
       -                 default=None,
       -                 help="Optional path of a file that contains "
       -                      "the description when creating an issue.")
       -group.add_option("-r", "--reviewers", action="store", dest="reviewers",
       -                 metavar="REVIEWERS", default=None,
       -                 help="Add reviewers (comma separated email addresses).")
       -group.add_option("--cc", action="store", dest="cc",
       -                 metavar="CC", default=None,
       -                 help="Add CC (comma separated email addresses).")
       -# Upload options
       -group = parser.add_option_group("Patch options")
       -group.add_option("-m", "--message", action="store", dest="message",
       -                 metavar="MESSAGE", default=None,
       -                 help="A message to identify the patch. "
       -                      "Will prompt if omitted.")
       -group.add_option("-i", "--issue", type="int", action="store",
       -                 metavar="ISSUE", default=None,
       -                 help="Issue number to which to add. Defaults to new issue.")
       -group.add_option("--download_base", action="store_true",
       -                 dest="download_base", default=False,
       -                 help="Base files will be downloaded by the server "
       -                 "(side-by-side diffs may not work on files with CRs).")
       -group.add_option("--rev", action="store", dest="revision",
       -                 metavar="REV", default=None,
       -                 help="Branch/tree/revision to diff against (used by DVCS).")
       -group.add_option("--send_mail", action="store_true",
       -                 dest="send_mail", default=False,
       -                 help="Send notification email to reviewers.")
       -
       -
       -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."""
       -    email = options.email
       -    if email is None:
       -      email = GetEmail("Email (login for uploading to %s)" % options.server)
       -    password = getpass.getpass("Password for %s: " % email)
       -    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:
       -    lines.append('--' + BOUNDARY)
       -    lines.append('Content-Disposition: form-data; name="%s"' % key)
       -    lines.append('')
       -    lines.append(value)
       -  for (key, filename, value) in files:
       -    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):
       -  """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)
       -  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):
       -  data, retcode = RunShellWithReturnCode(command, print_output,
       -                                         universal_newlines)
       -  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 = filename.strip().replace('\\', '/')
       -        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."""
       -      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)
       -
       -    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:
       -        UploadFile(filename, file_id, base_content, is_binary, status, True)
       -      if new_content != None:
       -        UploadFile(filename, file_id, new_content, is_binary, status, False)
       -
       -  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
       -    return not mimetype.startswith("text/")
       -
       -
       -class SubversionVCS(VersionControlSystem):
       -  """Implementation of the VersionControlSystem interface for Subversion."""
       -
       -  def __init__(self, options):
       -    super(SubversionVCS, self).__init__(options)
       -    if self.options.revision:
       -      match = re.match(r"(\d+)(:(\d+))?", self.options.revision)
       -      if not match:
       -        ErrorExit("Invalid Subversion revision %s." % self.options.revision)
       -      self.rev_start = match.group(1)
       -      self.rev_end = match.group(3)
       -    else:
       -      self.rev_start = self.rev_end = None
       -    # Cache output from "svn list -r REVNO dirname".
       -    # Keys: dirname, Values: 2-tuple (ouput for start rev and end rev).
       -    self.svnls_cache = {}
       -    # SVN base URL is required to fetch files deleted in an older revision.
       -    # Result is cached to not guess it over and over again in GetBaseFile().
       -    required = self.options.download_base or self.options.revision is not None
       -    self.svn_base = self._GuessBase(required)
       -
       -  def GuessBase(self, required):
       -    """Wrapper for _GuessBase."""
       -    return self.svn_base
       -
       -  def _GuessBase(self, required):
       -    """Returns the SVN base URL.
       -
       -    Args:
       -      required: If true, exits if the url can't be guessed, otherwise None is
       -        returned.
       -    """
       -    info = RunShell(["svn", "info"])
       -    for line in info.splitlines():
       -      words = line.split()
       -      if len(words) == 2 and words[0] == "URL:":
       -        url = words[1]
       -        scheme, netloc, path, params, query, fragment = urlparse.urlparse(url)
       -        username, netloc = urllib.splituser(netloc)
       -        if username:
       -          logging.info("Removed username from base URL")
       -        if netloc.endswith("svn.python.org"):
       -          if netloc == "svn.python.org":
       -            if path.startswith("/projects/"):
       -              path = path[9:]
       -          elif netloc != "pythondev@svn.python.org":
       -            ErrorExit("Unrecognized Python URL: %s" % url)
       -          base = "http://svn.python.org/view/*checkout*%s/" % path
       -          logging.info("Guessed Python base = %s", base)
       -        elif netloc.endswith("svn.collab.net"):
       -          if path.startswith("/repos/"):
       -            path = path[6:]
       -          base = "http://svn.collab.net/viewvc/*checkout*%s/" % path
       -          logging.info("Guessed CollabNet base = %s", base)
       -        elif netloc.endswith(".googlecode.com"):
       -          path = path + "/"
       -          base = urlparse.urlunparse(("http", netloc, path, params,
       -                                      query, fragment))
       -          logging.info("Guessed Google Code base = %s", base)
       -        else:
       -          path = path + "/"
       -          base = urlparse.urlunparse((scheme, netloc, path, params,
       -                                      query, fragment))
       -          logging.info("Guessed base = %s", base)
       -        return base
       -    if required:
       -      ErrorExit("Can't find URL in output from svn info")
       -    return None
       -
       -  def GenerateDiff(self, args):
       -    cmd = ["svn", "diff"]
       -    if self.options.revision:
       -      cmd += ["-r", self.options.revision]
       -    cmd.extend(args)
       -    data = RunShell(cmd)
       -    count = 0
       -    for line in data.splitlines():
       -      if line.startswith("Index:") or line.startswith("Property changes on:"):
       -        count += 1
       -        logging.info(line)
       -    if not count:
       -      ErrorExit("No valid patches found in output from svn diff")
       -    return data
       -
       -  def _CollapseKeywords(self, content, keyword_str):
       -    """Collapses SVN keywords."""
       -    # svn cat translates keywords but svn diff doesn't. As a result of this
       -    # behavior patching.PatchChunks() fails with a chunk mismatch error.
       -    # This part was originally written by the Review Board development team
       -    # who had the same problem (http://reviews.review-board.org/r/276/).
       -    # Mapping of keywords to known aliases
       -    svn_keywords = {
       -      # Standard keywords
       -      'Date':                ['Date', 'LastChangedDate'],
       -      'Revision':            ['Revision', 'LastChangedRevision', 'Rev'],
       -      'Author':              ['Author', 'LastChangedBy'],
       -      'HeadURL':             ['HeadURL', 'URL'],
       -      'Id':                  ['Id'],
       -
       -      # Aliases
       -      'LastChangedDate':     ['LastChangedDate', 'Date'],
       -      'LastChangedRevision': ['LastChangedRevision', 'Rev', 'Revision'],
       -      'LastChangedBy':       ['LastChangedBy', 'Author'],
       -      'URL':                 ['URL', 'HeadURL'],
       -    }
       -
       -    def repl(m):
       -       if m.group(2):
       -         return "$%s::%s$" % (m.group(1), " " * len(m.group(3)))
       -       return "$%s$" % m.group(1)
       -    keywords = [keyword
       -                for name in keyword_str.split(" ")
       -                for keyword in svn_keywords.get(name, [])]
       -    return re.sub(r"\$(%s):(:?)([^\$]+)\$" % '|'.join(keywords), repl, content)
       -
       -  def GetUnknownFiles(self):
       -    status = RunShell(["svn", "status", "--ignore-externals"], silent_ok=True)
       -    unknown_files = []
       -    for line in status.split("\n"):
       -      if line and line[0] == "?":
       -        unknown_files.append(line)
       -    return unknown_files
       -
       -  def ReadFile(self, filename):
       -    """Returns the contents of a file."""
       -    file = open(filename, 'rb')
       -    result = ""
       -    try:
       -      result = file.read()
       -    finally:
       -      file.close()
       -    return result
       -
       -  def GetStatus(self, filename):
       -    """Returns the status of a file."""
       -    if not self.options.revision:
       -      status = RunShell(["svn", "status", "--ignore-externals", filename])
       -      if not status:
       -        ErrorExit("svn status returned no output for %s" % filename)
       -      status_lines = status.splitlines()
       -      # If file is in a cl, the output will begin with
       -      # "\n--- Changelist 'cl_name':\n".  See
       -      # http://svn.collab.net/repos/svn/trunk/notes/changelist-design.txt
       -      if (len(status_lines) == 3 and
       -          not status_lines[0] and
       -          status_lines[1].startswith("--- Changelist")):
       -        status = status_lines[2]
       -      else:
       -        status = status_lines[0]
       -    # If we have a revision to diff against we need to run "svn list"
       -    # for the old and the new revision and compare the results to get
       -    # the correct status for a file.
       -    else:
       -      dirname, relfilename = os.path.split(filename)
       -      if dirname not in self.svnls_cache:
       -        cmd = ["svn", "list", "-r", self.rev_start, dirname or "."]
       -        out, returncode = RunShellWithReturnCode(cmd)
       -        if returncode:
       -          ErrorExit("Failed to get status for %s." % filename)
       -        old_files = out.splitlines()
       -        args = ["svn", "list"]
       -        if self.rev_end:
       -          args += ["-r", self.rev_end]
       -        cmd = args + [dirname or "."]
       -        out, returncode = RunShellWithReturnCode(cmd)
       -        if returncode:
       -          ErrorExit("Failed to run command %s" % cmd)
       -        self.svnls_cache[dirname] = (old_files, out.splitlines())
       -      old_files, new_files = self.svnls_cache[dirname]
       -      if relfilename in old_files and relfilename not in new_files:
       -        status = "D   "
       -      elif relfilename in old_files and relfilename in new_files:
       -        status = "M   "
       -      else:
       -        status = "A   "
       -    return status
       -
       -  def GetBaseFile(self, filename):
       -    status = self.GetStatus(filename)
       -    base_content = None
       -    new_content = None
       -
       -    # If a file is copied its status will be "A  +", which signifies
       -    # "addition-with-history".  See "svn st" for more information.  We need to
       -    # upload the original file or else diff parsing will fail if the file was
       -    # edited.
       -    if status[0] == "A" and status[3] != "+":
       -      # We'll need to upload the new content if we're adding a binary file
       -      # since diff's output won't contain it.
       -      mimetype = RunShell(["svn", "propget", "svn:mime-type", filename],
       -                          silent_ok=True)
       -      base_content = ""
       -      is_binary = bool(mimetype) and not mimetype.startswith("text/")
       -      if is_binary and self.IsImage(filename):
       -        new_content = self.ReadFile(filename)
       -    elif (status[0] in ("M", "D", "R") or
       -          (status[0] == "A" and status[3] == "+") or  # Copied file.
       -          (status[0] == " " and status[1] == "M")):  # Property change.
       -      args = []
       -      if self.options.revision:
       -        url = "%s/%s@%s" % (self.svn_base, filename, self.rev_start)
       -      else:
       -        # Don't change filename, it's needed later.
       -        url = filename
       -        args += ["-r", "BASE"]
       -      cmd = ["svn"] + args + ["propget", "svn:mime-type", url]
       -      mimetype, returncode = RunShellWithReturnCode(cmd)
       -      if returncode:
       -        # File does not exist in the requested revision.
       -        # Reset mimetype, it contains an error message.
       -        mimetype = ""
       -      get_base = False
       -      is_binary = bool(mimetype) and not mimetype.startswith("text/")
       -      if status[0] == " ":
       -        # Empty base content just to force an upload.
       -        base_content = ""
       -      elif is_binary:
       -        if self.IsImage(filename):
       -          get_base = True
       -          if status[0] == "M":
       -            if not self.rev_end:
       -              new_content = self.ReadFile(filename)
       -            else:
       -              url = "%s/%s@%s" % (self.svn_base, filename, self.rev_end)
       -              new_content = RunShell(["svn", "cat", url],
       -                                     universal_newlines=True, silent_ok=True)
       -        else:
       -          base_content = ""
       -      else:
       -        get_base = True
       -
       -      if get_base:
       -        if is_binary:
       -          universal_newlines = False
       -        else:
       -          universal_newlines = True
       -        if self.rev_start:
       -          # "svn cat -r REV delete_file.txt" doesn't work. cat requires
       -          # the full URL with "@REV" appended instead of using "-r" option.
       -          url = "%s/%s@%s" % (self.svn_base, filename, self.rev_start)
       -          base_content = RunShell(["svn", "cat", url],
       -                                  universal_newlines=universal_newlines,
       -                                  silent_ok=True)
       -        else:
       -          base_content = RunShell(["svn", "cat", filename],
       -                                  universal_newlines=universal_newlines,
       -                                  silent_ok=True)
       -        if not is_binary:
       -          args = []
       -          if self.rev_start:
       -            url = "%s/%s@%s" % (self.svn_base, filename, self.rev_start)
       -          else:
       -            url = filename
       -            args += ["-r", "BASE"]
       -          cmd = ["svn"] + args + ["propget", "svn:keywords", url]
       -          keywords, returncode = RunShellWithReturnCode(cmd)
       -          if keywords and not returncode:
       -            base_content = self._CollapseKeywords(base_content, keywords)
       -    else:
       -      StatusUpdate("svn status returned unexpected output: %s" % status)
       -      sys.exit(1)
       -    return base_content, new_content, is_binary, status[0:5]
       -
       -
       -class GitVCS(VersionControlSystem):
       -  """Implementation of the VersionControlSystem interface for Git."""
       -
       -  NULL_HASH = "0"*40
       -
       -  def __init__(self, options):
       -    super(GitVCS, self).__init__(options)
       -    # Map of filename -> (hash before, hash after) of base file.
       -    self.base_hashes = {}
       -
       -  def GenerateDiff(self, extra_args):
       -    # This is more complicated than svn's GenerateDiff because we must convert
       -    # the diff output to include an svn-style "Index:" line as well as record
       -    # the hashes of the base files, so we can upload them along with our diff.
       -    if self.options.revision:
       -      extra_args = [self.options.revision] + extra_args
       -    gitdiff = RunShell(["git", "diff", "--full-index"] + extra_args)
       -    svndiff = []
       -    filecount = 0
       -    filename = None
       -    for line in gitdiff.splitlines():
       -      match = re.match(r"diff --git a/(.*) b/.*$", line)
       -      if match:
       -        filecount += 1
       -        filename = match.group(1)
       -        svndiff.append("Index: %s\n" % filename)
       -      else:
       -        # The "index" line in a git diff looks like this (long hashes elided):
       -        #   index 82c0d44..b2cee3f 100755
       -        # We want to save the left hash, as that identifies the base file.
       -        match = re.match(r"index (\w+)\.\.(\w+)", line)
       -        if match:
       -          self.base_hashes[filename] = (match.group(1), match.group(2))
       -      svndiff.append(line + "\n")
       -    if not filecount:
       -      ErrorExit("No valid patches found in output from git diff")
       -    return "".join(svndiff)
       -
       -  def GetUnknownFiles(self):
       -    status = RunShell(["git", "ls-files", "--exclude-standard", "--others"],
       -                      silent_ok=True)
       -    return status.splitlines()
       -
       -  def GetFileContent(self, file_hash, is_binary):
       -    """Returns the content of a file identified by its git hash."""
       -    data, retcode = RunShellWithReturnCode(["git", "show", file_hash],
       -                                            universal_newlines=not is_binary)
       -    if retcode:
       -      ErrorExit("Got error status from 'git show %s'" % file_hash)
       -    return data
       -
       -  def GetBaseFile(self, filename):
       -    hash_before, hash_after = self.base_hashes[filename]
       -    base_content = None
       -    new_content = None
       -    is_binary = self.IsBinary(filename)
       -
       -    if hash_before == self.NULL_HASH:  # All-zero hash indicates no base file.
       -      status = "A"
       -      base_content = ""
       -    else:
       -      status = "M"
       -      if not is_binary or self.IsImage(filename):
       -        base_content = self.GetFileContent(hash_before, is_binary)
       -
       -    if is_binary and self.IsImage(filename) and not hash_after == "0" * 40:
       -      new_content = self.GetFileContent(hash_after, is_binary)
       -
       -    if hash_after == self.NULL_HASH:
       -      status = "D"
       -    return (base_content, new_content, is_binary, status)
       -
       -
       -class MercurialVCS(VersionControlSystem):
       -  """Implementation of the VersionControlSystem interface for Mercurial."""
       -
       -  def __init__(self, options, repo_dir):
       -    super(MercurialVCS, self).__init__(options)
       -    # Absolute path to repository (we can be in a subdir)
       -    self.repo_dir = os.path.normpath(repo_dir)
       -    # 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:
       -      self.base_rev = RunShell(["hg", "parent", "-q"]).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
       -    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 GetBaseFile(self, 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)
       -    # "hg status -C" returns two lines for moved/copied files, one otherwise
       -    out = RunShell(["hg", "status", "-C", "--rev", self.base_rev, relpath])
       -    out = out.splitlines()
       -    # HACK: strip error message about missing file/directory if it isn't in
       -    # the working copy
       -    if out[0].startswith('%s: ' % relpath):
       -      out = out[1:]
       -    if len(out) > 1:
       -      # Moved/copied => considered as modified, use old filename to
       -      # retrieve base contents
       -      oldrelpath = out[1].strip()
       -      status = "M"
       -    else:
       -      status, _ = out[0].split(' ', 1)
       -    if ":" in self.base_rev:
       -      base_rev = self.base_rev.split(":", 1)[0]
       -    else:
       -      base_rev = self.base_rev
       -    if status != "A":
       -      base_content = RunShell(["hg", "cat", "-r", base_rev, oldrelpath],
       -        silent_ok=True)
       -      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:
       -      # 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 = temp_filename.strip().replace('\\', '/')
       -      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:
       -    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
       -
       -
       -def GuessVCSName():
       -  """Helper to guess the version control system.
       -
       -  This examines the current directory, guesses which VersionControlSystem
       -  we're using, and returns an string indicating which VCS is detected.
       -
       -  Returns:
       -    A pair (vcs, output).  vcs is a string indicating which VCS was detected
       -    and is one of VCS_GIT, VCS_MERCURIAL, VCS_SUBVERSION, or VCS_UNKNOWN.
       -    output is a string containing any interesting output from the vcs
       -    detection routine, or None if there is nothing interesting.
       -  """
       -  # Mercurial has a command to get the base directory of a repository
       -  # Try running it, but don't die if we don't have hg installed.
       -  # NOTE: we try Mercurial first as it can sit on top of an SVN working copy.
       -  try:
       -    out, returncode = RunShellWithReturnCode(["hg", "root"])
       -    if returncode == 0:
       -      return (VCS_MERCURIAL, out.strip())
       -  except OSError, (errno, message):
       -    if errno != 2:  # ENOENT -- they don't have hg installed.
       -      raise
       -
       -  # Subversion has a .svn in all working directories.
       -  if os.path.isdir('.svn'):
       -    logging.info("Guessed VCS = Subversion")
       -    return (VCS_SUBVERSION, None)
       -
       -  # Git has a command to test if you're in a git tree.
       -  # Try running it, but don't die if we don't have git installed.
       -  try:
       -    out, returncode = RunShellWithReturnCode(["git", "rev-parse",
       -                                              "--is-inside-work-tree"])
       -    if returncode == 0:
       -      return (VCS_GIT, None)
       -  except OSError, (errno, message):
       -    if errno != 2:  # ENOENT -- they don't have git installed.
       -      raise
       -
       -  return (VCS_UNKNOWN, None)
       -
       -
       -def GuessVCS(options):
       -  """Helper to guess the version control system.
       -
       -  This examines the current directory, guesses which VersionControlSystem
       -  we're using, and returns an instance of the appropriate class.  Exit with an
       -  error if we can't figure it out.
       -
       -  Returns:
       -    A VersionControlSystem instance. Exits if the VCS can't be guessed.
       -  """
       -  (vcs, extra_output) = GuessVCSName()
       -  if vcs == VCS_MERCURIAL:
       -    return MercurialVCS(options, extra_output)
       -  elif vcs == VCS_SUBVERSION:
       -    return SubversionVCS(options)
       -  elif vcs == VCS_GIT:
       -    return GitVCS(options)
       -
       -  ErrorExit(("Could not guess version control system. "
       -             "Are you in a working copy directory?"))
       -
       -
       -def RealMain(argv, data=None):
       -  """The real main function.
       -
       -  Args:
       -    argv: Command line arguments.
       -    data: Diff contents. If None (default) the diff is generated by
       -      the VersionControlSystem implementation returned by GuessVCS().
       -
       -  Returns:
       -    A 2-tuple (issue id, patchset id).
       -    The patchset id is None if the base files are not uploaded by this
       -    script (applies only to SVN checkouts).
       -  """
       -  logging.basicConfig(format=("%(asctime).19s %(levelname)s %(filename)s:"
       -                              "%(lineno)s %(message)s "))
       -  os.environ['LC_ALL'] = 'C'
       -  options, args = parser.parse_args(argv[1:])
       -  global verbosity
       -  verbosity = options.verbose
       -  if verbosity >= 3:
       -    logging.getLogger().setLevel(logging.DEBUG)
       -  elif verbosity >= 2:
       -    logging.getLogger().setLevel(logging.INFO)
       -  vcs = GuessVCS(options)
       -  if isinstance(vcs, SubversionVCS):
       -    # base field is only allowed for Subversion.
       -    # Note: Fetching base files may become deprecated in future releases.
       -    base = vcs.GuessBase(options.download_base)
       -  else:
       -    base = None
       -  if not base and options.download_base:
       -    options.download_base = True
       -    logging.info("Enabled upload of base file")
       -  if not options.assume_yes:
       -    vcs.CheckForUnknownFiles()
       -  if data is None:
       -    data = vcs.GenerateDiff(args)
       -  files = vcs.GetBaseFiles(data)
       -  if verbosity >= 1:
       -    print "Upload server:", options.server, "(change with -s/--server)"
       -  if options.issue:
       -    prompt = "Message describing this patch set: "
       -  else:
       -    prompt = "New issue subject: "
       -  message = options.message or raw_input(prompt).strip()
       -  if not message:
       -    ErrorExit("A non-empty message is required")
       -  rpc_server = GetRpcServer(options)
       -  form_fields = [("subject", message)]
       -  if base:
       -    form_fields.append(("base", base))
       -  if options.issue:
       -    form_fields.append(("issue", str(options.issue)))
       -  if options.email:
       -    form_fields.append(("user", options.email))
       -  if options.reviewers:
       -    for reviewer in options.reviewers.split(','):
       -      if "@" in reviewer and not reviewer.split("@")[1].count(".") == 1:
       -        ErrorExit("Invalid email address: %s" % reviewer)
       -    form_fields.append(("reviewers", options.reviewers))
       -  if options.cc:
       -    for cc in options.cc.split(','):
       -      if "@" in cc and not cc.split("@")[1].count(".") == 1:
       -        ErrorExit("Invalid email address: %s" % cc)
       -    form_fields.append(("cc", options.cc))
       -  description = options.description
       -  if options.description_file:
       -    if options.description:
       -      ErrorExit("Can't specify description and description_file")
       -    file = open(options.description_file, 'r')
       -    description = file.read()
       -    file.close()
       -  if description:
       -    form_fields.append(("description", description))
       -  # Send a hash of all the base file so the server can determine if a copy
       -  # already exists in an earlier patchset.
       -  base_hashes = ""
       -  for file, info in files.iteritems():
       -    if not info[0] is None:
       -      checksum = md5(info[0]).hexdigest()
       -      if base_hashes:
       -        base_hashes += "|"
       -      base_hashes += checksum + ":" + file
       -  form_fields.append(("base_hashes", base_hashes))
       -  # If we're uploading base files, don't send the email before the uploads, so
       -  # that it contains the file status.
       -  if options.send_mail and options.download_base:
       -    form_fields.append(("send_mail", "1"))
       -  if not options.download_base:
       -    form_fields.append(("content_upload", "1"))
       -  if len(data) > MAX_UPLOAD_SIZE:
       -    print "Patch is large, so uploading file patches separately."
       -    uploaded_diff_file = []
       -    form_fields.append(("separate_patches", "1"))
       -  else:
       -    uploaded_diff_file = [("data", "data.diff", data)]
       -  ctype, body = EncodeMultipartFormData(form_fields, uploaded_diff_file)
       -  response_body = rpc_server.Send("/upload", body, content_type=ctype)
       -  patchset = None
       -  if not options.download_base or not uploaded_diff_file:
       -    lines = response_body.splitlines()
       -    if len(lines) >= 2:
       -      msg = lines[0]
       -      patchset = lines[1].strip()
       -      patches = [x.split(" ", 1) for x in lines[2:]]
       -    else:
       -      msg = response_body
       -  else:
       -    msg = response_body
       -  StatusUpdate(msg)
       -  if not response_body.startswith("Issue created.") and \
       -  not response_body.startswith("Issue updated."):
       -    sys.exit(0)
       -  issue = msg[msg.rfind("/")+1:]
       -
       -  if not uploaded_diff_file:
       -    result = UploadSeparatePatches(issue, rpc_server, patchset, data, options)
       -    if not options.download_base:
       -      patches = result
       -
       -  if not options.download_base:
       -    vcs.UploadBaseFiles(issue, rpc_server, patches, patchset, options, files)
       -    if options.send_mail:
       -      rpc_server.Send("/" + issue + "/mail", payload="")
       -  return issue, patchset
       -
       -
       -def main():
       -  try:
       -    RealMain(sys.argv)
       -  except KeyboardInterrupt:
       -    print
       -    StatusUpdate("Interrupted.")
       -    sys.exit(1)
       -
       -
       -if __name__ == "__main__":
       -  main()