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# Copyright (C) 2010 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.
"""Wrapper objects for WebKit-specific utility routines."""
# FIXME: This file needs to be unified with common/config/ports.py .
import logging
from webkitpy.common import webkit_finder
_log = logging.getLogger(__name__)
#
# FIXME: This is used to record if we've already hit the filesystem to look
# for a default configuration. We cache this to speed up the unit tests,
# but this can be reset with clear_cached_configuration(). This should be
# replaced with us consistently using MockConfigs() for tests that don't
# hit the filesystem at all and provide a reliable value.
#
_have_determined_configuration = False
_configuration = "Release"
def clear_cached_configuration():
global _have_determined_configuration, _configuration
_have_determined_configuration = False
_configuration = "Release"
class Config(object):
_FLAGS_FROM_CONFIGURATIONS = {
"Debug": "--debug",
"Release": "--release",
}
def __init__(self, executive, filesystem, port_implementation=None):
self._executive = executive
self._filesystem = filesystem
self._webkit_finder = webkit_finder.WebKitFinder(self._filesystem)
self._default_configuration = None
self._build_directories = {}
self._port_implementation = port_implementation
def build_directory(self, configuration):
"""Returns the path to the build directory for the configuration."""
if configuration:
flags = ["--configuration", self.flag_for_configuration(configuration)]
else:
configuration = ""
flags = []
if self._port_implementation:
flags.append('--' + self._port_implementation)
if not self._build_directories.get(configuration):
args = ["perl", self._webkit_finder.path_to_script("webkit-build-directory")] + flags
output = self._executive.run_command(args, cwd=self._webkit_finder.webkit_base(), return_stderr=False).rstrip()
parts = output.split("\n")
self._build_directories[configuration] = parts[0]
if len(parts) == 2:
default_configuration = parts[1][len(parts[0]):]
if default_configuration.startswith("/"):
default_configuration = default_configuration[1:]
self._build_directories[default_configuration] = parts[1]
return self._build_directories[configuration]
def flag_for_configuration(self, configuration):
return self._FLAGS_FROM_CONFIGURATIONS[configuration]
def default_configuration(self):
"""Returns the default configuration for the user.
Returns the value set by 'set-webkit-configuration', or "Release"
if that has not been set. This mirrors the logic in webkitdirs.pm."""
if not self._default_configuration:
self._default_configuration = self._determine_configuration()
if not self._default_configuration:
self._default_configuration = 'Release'
if self._default_configuration not in self._FLAGS_FROM_CONFIGURATIONS:
_log.warn("Configuration \"%s\" is not a recognized value.\n" % self._default_configuration)
_log.warn("Scripts may fail. See 'set-webkit-configuration --help'.")
return self._default_configuration
def _determine_configuration(self):
# This mirrors the logic in webkitdirs.pm:determineConfiguration().
#
# FIXME: See the comment at the top of the file regarding unit tests
# and our use of global mutable static variables.
# FIXME: We should just @memoize this method and then this will only
# be read once per object lifetime (which should be sufficiently fast).
global _have_determined_configuration, _configuration
if not _have_determined_configuration:
contents = self._read_configuration()
if not contents:
contents = "Release"
if contents == "Deployment":
contents = "Release"
if contents == "Development":
contents = "Debug"
_configuration = contents
_have_determined_configuration = True
return _configuration
def _read_configuration(self):
try:
configuration_path = self._filesystem.join(self.build_directory(None), "Configuration")
if not self._filesystem.exists(configuration_path):
return None
except:
return None
return self._filesystem.read_text_file(configuration_path).rstrip()
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