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 30 # FIXME: This probably belongs in the buildbot module. 31 class FailureMap(object): 32 def __init__(self): 33 self._failures = [] 34 35 def add_regression_window(self, builder, regression_window): 36 self._failures.append({ 37 'builder': builder, 38 'regression_window': regression_window, 39 }) 40 41 def is_empty(self): 42 return not self._failures 43 44 def failing_revisions(self): 45 failing_revisions = [failure_info['regression_window'].revisions() 46 for failure_info in self._failures] 47 return sorted(set(sum(failing_revisions, []))) 48 49 def builders_failing_for(self, revision): 50 return self._builders_failing_because_of([revision]) 51 52 def tests_failing_for(self, revision): 53 tests = [failure_info['regression_window'].failing_tests() 54 for failure_info in self._failures 55 if revision in failure_info['regression_window'].revisions() 56 and failure_info['regression_window'].failing_tests()] 57 result = set() 58 for test in tests: 59 result = result.union(test) 60 return sorted(result) 61 62 def _old_failures(self, is_old_failure): 63 return filter(lambda revision: is_old_failure(revision), 64 self.failing_revisions()) 65 66 def _builders_failing_because_of(self, revisions): 67 revision_set = set(revisions) 68 return [failure_info['builder'] for failure_info in self._failures 69 if revision_set.intersection( 70 failure_info['regression_window'].revisions())] 71 72 # FIXME: We should re-process old failures after some time delay. 73 # https://bugs.webkit.org/show_bug.cgi?id=36581 74 def filter_out_old_failures(self, is_old_failure): 75 old_failures = self._old_failures(is_old_failure) 76 old_failing_builder_names = set([builder.name() 77 for builder in self._builders_failing_because_of(old_failures)]) 78 79 # We filter out all the failing builders that could have been caused 80 # by old_failures. We could miss some new failures this way, but 81 # emperically, this reduces the amount of spam we generate. 82 failures = self._failures 83 self._failures = [failure_info for failure_info in failures 84 if failure_info['builder'].name() not in old_failing_builder_names] 85 self._cache = {} 86
