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diff --git a/WebKitTools/Scripts/webkitpy/common/system/user.py b/WebKitTools/Scripts/webkitpy/common/system/user.py
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--- a/WebKitTools/Scripts/webkitpy/common/system/user.py
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-# Copyright (c) 2009, Google Inc. All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are
-# met:
-#
-# * Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-# * Redistributions in binary form must reproduce the above
-# copyright notice, this list of conditions and the following disclaimer
-# in the documentation and/or other materials provided with the
-# distribution.
-# * Neither the name of Google Inc. nor the names of its
-# contributors may be used to endorse or promote products derived from
-# this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-import logging
-import os
-import re
-import shlex
-import subprocess
-import sys
-import webbrowser
-
-
-_log = logging.getLogger("webkitpy.common.system.user")
-
-
-try:
- import readline
-except ImportError:
- if sys.platform != "win32":
- # There is no readline module for win32, not much to do except cry.
- _log.warn("Unable to import readline.")
- # FIXME: We could give instructions for non-mac platforms.
- # Lack of readline results in a very bad user experiance.
- if sys.platform == "mac":
- _log.warn("If you're using MacPorts, try running:")
- _log.warn(" sudo port install py25-readline")
-
-
-class User(object):
- DEFAULT_NO = 'n'
- DEFAULT_YES = 'y'
-
- # FIXME: These are @classmethods because bugzilla.py doesn't have a Tool object (thus no User instance).
- @classmethod
- def prompt(cls, message, repeat=1, raw_input=raw_input):
- response = None
- while (repeat and not response):
- repeat -= 1
- response = raw_input(message)
- return response
-
- @classmethod
- def prompt_with_list(cls, list_title, list_items, can_choose_multiple=False, raw_input=raw_input):
- print list_title
- i = 0
- for item in list_items:
- i += 1
- print "%2d. %s" % (i, item)
-
- # Loop until we get valid input
- while True:
- if can_choose_multiple:
- response = cls.prompt("Enter one or more numbers (comma-separated), or \"all\": ", raw_input=raw_input)
- if not response.strip() or response == "all":
- return list_items
- try:
- indices = [int(r) - 1 for r in re.split("\s*,\s*", response)]
- except ValueError, err:
- continue
- return [list_items[i] for i in indices]
- else:
- try:
- result = int(cls.prompt("Enter a number: ", raw_input=raw_input)) - 1
- except ValueError, err:
- continue
- return list_items[result]
-
- def edit(self, files):
- editor = os.environ.get("EDITOR") or "vi"
- args = shlex.split(editor)
- # Note: Not thread safe: http://bugs.python.org/issue2320
- subprocess.call(args + files)
-
- def _warn_if_application_is_xcode(self, edit_application):
- if "Xcode" in edit_application:
- print "Instead of using Xcode.app, consider using EDITOR=\"xed --wait\"."
-
- def edit_changelog(self, files):
- edit_application = os.environ.get("CHANGE_LOG_EDIT_APPLICATION")
- if edit_application and sys.platform == "darwin":
- # On Mac we support editing ChangeLogs using an application.
- args = shlex.split(edit_application)
- print "Using editor in the CHANGE_LOG_EDIT_APPLICATION environment variable."
- print "Please quit the editor application when done editing."
- self._warn_if_application_is_xcode(edit_application)
- subprocess.call(["open", "-W", "-n", "-a"] + args + files)
- return
- self.edit(files)
-
- def page(self, message):
- pager = os.environ.get("PAGER") or "less"
- try:
- # Note: Not thread safe: http://bugs.python.org/issue2320
- child_process = subprocess.Popen([pager], stdin=subprocess.PIPE)
- child_process.communicate(input=message)
- except IOError, e:
- pass
-
- def confirm(self, message=None, default=DEFAULT_YES, raw_input=raw_input):
- if not message:
- message = "Continue?"
- choice = {'y': 'Y/n', 'n': 'y/N'}[default]
- response = raw_input("%s [%s]: " % (message, choice))
- if not response:
- response = default
- return response.lower() == 'y'
-
- def can_open_url(self):
- try:
- webbrowser.get()
- return True
- except webbrowser.Error, e:
- return False
-
- def open_url(self, url):
- if not self.can_open_url():
- _log.warn("Failed to open %s" % url)
- webbrowser.open(url)