| # Copyright (c) 2012 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 os |
| import sys |
| |
| |
| class WebKitFinder(object): |
| def __init__(self, filesystem): |
| self._filesystem = filesystem |
| self._dirsep = filesystem.sep |
| self._sys_path = sys.path |
| self._env_path = os.environ['PATH'].split(os.pathsep) |
| self._webkit_base = None |
| self._chromium_base = None |
| self._depot_tools = None |
| |
| def webkit_base(self): |
| """Returns the absolute path to the top of the WebKit tree. |
| |
| Raises an AssertionError if the top dir can't be determined.""" |
| # Note: This code somewhat duplicates the code in |
| # scm.find_checkout_root(). However, that code only works if the top |
| # of the SCM repository also matches the top of the WebKit tree. Some SVN users |
| # (the chromium test bots, for example), might only check out subdirectories like |
| # Tools/Scripts. This code will also work if there is no SCM system at all. |
| if not self._webkit_base: |
| self._webkit_base = self._webkit_base |
| module_path = self._filesystem.abspath(self._filesystem.path_to_module(self.__module__)) |
| tools_index = module_path.rfind('Tools') |
| assert tools_index != -1, "could not find location of this checkout from %s" % module_path |
| self._webkit_base = self._filesystem.normpath(module_path[0:tools_index - 1]) |
| return self._webkit_base |
| |
| def chromium_base(self): |
| if not self._chromium_base: |
| self._chromium_base = self._filesystem.dirname(self._filesystem.dirname(self.webkit_base())) |
| return self._chromium_base |
| |
| def path_from_webkit_base(self, *comps): |
| return self._filesystem.join(self.webkit_base(), *comps) |
| |
| def path_from_chromium_base(self, *comps): |
| return self._filesystem.join(self.chromium_base(), *comps) |
| |
| def path_to_script(self, script_name): |
| """Returns the relative path to the script from the top of the WebKit tree.""" |
| # This is intentionally relative in order to force callers to consider what |
| # their current working directory is (and change to the top of the tree if necessary). |
| return self._filesystem.join("Tools", "Scripts", script_name) |
| |
| def layout_tests_dir(self): |
| return self.path_from_webkit_base('LayoutTests') |
| |
| def perf_tests_dir(self): |
| return self.path_from_webkit_base('PerformanceTests') |
| |
| def depot_tools_base(self): |
| if not self._depot_tools: |
| # This basically duplicates src/tools/find_depot_tools.py without the side effects |
| # (adding the directory to sys.path and importing breakpad). |
| self._depot_tools = (self._check_paths_for_depot_tools(self._sys_path) or |
| self._check_paths_for_depot_tools(self._env_path) or |
| self._check_upward_for_depot_tools()) |
| return self._depot_tools |
| |
| def _check_paths_for_depot_tools(self, paths): |
| for path in paths: |
| if path.rstrip(self._dirsep).endswith('depot_tools'): |
| return path |
| return None |
| |
| def _check_upward_for_depot_tools(self): |
| fs = self._filesystem |
| prev_dir = '' |
| current_dir = fs.dirname(self._webkit_base) |
| while current_dir != prev_dir: |
| if fs.exists(fs.join(current_dir, 'depot_tools', 'pylint.py')): |
| return fs.join(current_dir, 'depot_tools') |
| prev_dir = current_dir |
| current_dir = fs.dirname(current_dir) |
| |
| def path_from_depot_tools_base(self, *comps): |
| return self._filesystem.join(self.depot_tools_base(), *comps) |
