163 lines
6.6 KiB
Python
163 lines
6.6 KiB
Python
# Copyright (C) 2010 Google Inc. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following disclaimer
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# in the documentation and/or other materials provided with the
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# distribution.
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# * Neither the name of Google Inc. nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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"""Wrapper objects for WebKit-specific utility routines."""
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# FIXME: This file needs to be unified with common/config/ports.py .
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import logging
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from webkitpy.common import webkit_finder
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from webkitpy.common.memoized import memoized
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_log = logging.getLogger(__name__)
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#
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# FIXME: This is used to record if we've already hit the filesystem to look
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# for a default configuration. We cache this to speed up the unit tests,
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# but this can be reset with clear_cached_configuration(). This should be
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# replaced with us consistently using MockConfigs() for tests that don't
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# hit the filesystem at all and provide a reliable value.
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#
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_have_determined_configuration = False
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_configuration = "Release"
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def clear_cached_configuration():
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global _have_determined_configuration, _configuration
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_have_determined_configuration = False
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_configuration = "Release"
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Config.asan.fget._results_cache = {}
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@memoized
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def apple_additions():
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try:
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# A level of 0 means that only absolute paths will be used.
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return __import__('apple_additions', globals=globals(), locals=None, fromlist=[], level=0)
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except ImportError:
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return None
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class Config(object):
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_FLAGS_FROM_CONFIGURATIONS = {
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"Debug": "--debug",
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"Release": "--release",
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}
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def __init__(self, executive, filesystem, port_implementation=None):
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self._executive = executive
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self._filesystem = filesystem
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self._webkit_finder = webkit_finder.WebKitFinder(self._filesystem)
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self._default_configuration = None
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self._build_directories = {}
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self._port_implementation = port_implementation
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def build_directory(self, configuration, for_host=False):
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"""Returns the path to the build directory for the configuration."""
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if configuration:
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flags = ["--configuration", self.flag_for_configuration(configuration)]
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else:
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configuration = ""
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flags = []
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if self._port_implementation and not for_host:
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flags.append('--' + self._port_implementation)
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if not self._build_directories.get(configuration):
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args = ["perl", self._webkit_finder.path_to_script("webkit-build-directory")] + flags
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output = self._executive.run_command(args, cwd=self._webkit_finder.webkit_base(), return_stderr=False).rstrip()
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parts = output.split("\n")
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self._build_directories[configuration] = parts[0]
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if len(parts) == 2:
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default_configuration = parts[1][len(parts[0]):]
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if default_configuration.startswith("/"):
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default_configuration = default_configuration[1:]
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self._build_directories[default_configuration] = parts[1]
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return self._build_directories[configuration]
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def flag_for_configuration(self, configuration):
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if not configuration:
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configuration = self.default_configuration()
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return self._FLAGS_FROM_CONFIGURATIONS[configuration]
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def default_configuration(self):
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"""Returns the default configuration for the user.
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Returns the value set by 'set-webkit-configuration', or "Release"
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if that has not been set. This mirrors the logic in webkitdirs.pm."""
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if not self._default_configuration:
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self._default_configuration = self._determine_configuration()
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if not self._default_configuration:
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self._default_configuration = 'Release'
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if self._default_configuration not in self._FLAGS_FROM_CONFIGURATIONS:
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_log.warn("Configuration \"%s\" is not a recognized value.\n" % self._default_configuration)
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_log.warn("Scripts may fail. See 'set-webkit-configuration --help'.")
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return self._default_configuration
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def _determine_configuration(self):
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# This mirrors the logic in webkitdirs.pm:determineConfiguration().
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#
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# FIXME: See the comment at the top of the file regarding unit tests
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# and our use of global mutable static variables.
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# FIXME: We should just @memoize this method and then this will only
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# be read once per object lifetime (which should be sufficiently fast).
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global _have_determined_configuration, _configuration
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if not _have_determined_configuration:
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contents = self._read_configuration()
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if not contents:
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contents = "Release"
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if contents == "Deployment":
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contents = "Release"
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if contents == "Development":
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contents = "Debug"
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_configuration = contents
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_have_determined_configuration = True
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return _configuration
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def _read_configuration(self):
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try:
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configuration_path = self._filesystem.join(self.build_directory(None), "Configuration")
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if not self._filesystem.exists(configuration_path):
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return None
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except:
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return None
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return self._filesystem.read_text_file(configuration_path).rstrip()
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@property
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@memoized
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def asan(self):
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try:
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return self._filesystem.exists(self._filesystem.join(self.build_directory(None), "ASan"))
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except:
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return False
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