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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 == "darwin":
_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)
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