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      1 # Copyright (c) 2010 Google Inc. All rights reserved.
      2 #
      3 # Redistribution and use in source and binary forms, with or without
      4 # modification, are permitted provided that the following conditions are
      5 # met:
      6 #
      7 #     * Redistributions of source code must retain the above copyright
      8 # notice, this list of conditions and the following disclaimer.
      9 #     * Redistributions in binary form must reproduce the above
     10 # copyright notice, this list of conditions and the following disclaimer
     11 # in the documentation and/or other materials provided with the
     12 # distribution.
     13 #     * Neither the name of Google Inc. nor the names of its
     14 # contributors may be used to endorse or promote products derived from
     15 # this software without specific prior written permission.
     16 #
     17 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     18 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     19 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     20 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     21 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     22 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     23 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     24 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     25 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     26 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     27 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28 
     29 import os.path
     30 import re
     31 import shutil
     32 import urllib
     33 
     34 from webkitpy.common.net.buildbot import BuildBot
     35 from webkitpy.common.net.layouttestresults import LayoutTestResults
     36 from webkitpy.common.system.user import User
     37 from webkitpy.layout_tests.layout_package import test_failures
     38 from webkitpy.layout_tests.port import factory
     39 from webkitpy.tool.grammar import pluralize
     40 from webkitpy.tool.multicommandtool import AbstractDeclarativeCommand
     41 
     42 
     43 # FIXME: I'm not sure where this logic should go in the end.
     44 # For now it's here, until we have a second need for it.
     45 class BuilderToPort(object):
     46     _builder_name_to_port_name = {
     47         r"SnowLeopard": "mac-snowleopard",
     48         r"Leopard": "mac-leopard",
     49         r"Tiger": "mac-tiger",
     50         r"Windows": "win",
     51         r"GTK": "gtk",
     52         r"Qt": "qt",
     53         r"Chromium Mac": "chromium-mac",
     54         r"Chromium Linux": "chromium-linux",
     55         r"Chromium Win": "chromium-win",
     56     }
     57 
     58     def _port_name_for_builder_name(self, builder_name):
     59         for regexp, port_name in self._builder_name_to_port_name.items():
     60             if re.match(regexp, builder_name):
     61                 return port_name
     62 
     63     def port_for_builder(self, builder_name):
     64         port_name = self._port_name_for_builder_name(builder_name)
     65         assert(port_name)  # Need to update _builder_name_to_port_name
     66         port = factory.get(port_name)
     67         assert(port)  # Need to update _builder_name_to_port_name
     68         return port
     69 
     70 
     71 class Rebaseline(AbstractDeclarativeCommand):
     72     name = "rebaseline"
     73     help_text = "Replaces local expected.txt files with new results from build bots"
     74 
     75     # FIXME: This should share more code with FailureReason._builder_to_explain
     76     def _builder_to_pull_from(self):
     77         builder_statuses = self._tool.buildbot.builder_statuses()
     78         red_statuses = [status for status in builder_statuses if not status["is_green"]]
     79         print "%s failing" % (pluralize("builder", len(red_statuses)))
     80         builder_choices = [status["name"] for status in red_statuses]
     81         chosen_name = self._tool.user.prompt_with_list("Which builder to pull results from:", builder_choices)
     82         # FIXME: prompt_with_list should really take a set of objects and a set of names and then return the object.
     83         for status in red_statuses:
     84             if status["name"] == chosen_name:
     85                 return (self._tool.buildbot.builder_with_name(chosen_name), status["build_number"])
     86 
     87     def _replace_expectation_with_remote_result(self, local_file, remote_file):
     88         (downloaded_file, headers) = urllib.urlretrieve(remote_file)
     89         shutil.move(downloaded_file, local_file)
     90 
     91     def _tests_to_update(self, build):
     92         failing_tests = build.layout_test_results().tests_matching_failure_types([test_failures.FailureTextMismatch])
     93         return self._tool.user.prompt_with_list("Which test(s) to rebaseline:", failing_tests, can_choose_multiple=True)
     94 
     95     def _results_url_for_test(self, build, test):
     96         test_base = os.path.splitext(test)[0]
     97         actual_path = test_base + "-actual.txt"
     98         return build.results_url() + "/" + actual_path
     99 
    100     def execute(self, options, args, tool):
    101         builder, build_number = self._builder_to_pull_from()
    102         build = builder.build(build_number)
    103         port = BuilderToPort().port_for_builder(builder.name())
    104 
    105         for test in self._tests_to_update(build):
    106             results_url = self._results_url_for_test(build, test)
    107             # Port operates with absolute paths.
    108             absolute_path = os.path.join(port.layout_tests_dir(), test)
    109             expected_file = port.expected_filename(absolute_path, ".txt")
    110             print test
    111             self._replace_expectation_with_remote_result(expected_file, results_url)
    112 
    113         # FIXME: We should handle new results too.
    114