[Predator] Generate all changelogs in regression ranges instead of only matched changelogs

appengine/findit/crash/scorers/scorer.py

-# Copyright 2016 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-"""Interface of scorers to score and reason Result.
-
-A Scorer represents a heuristic rule to score a culprit cl result.
-"""
-
-import logging
-
-
-class Scorer(object):  # pragma: no cover.
-
-  def GetMetric(self, result):
-    raise NotImplementedError()
-
-  def Score(self, metric):
-    """Scores the result based on extracted metric."""
-    raise NotImplementedError()
-
-  def Reason(self, metric, score):
-    """Gives the reason of this score."""
-    raise NotImplementedError()
-
-  def ChangedFiles(self, result, score):
-    """Returns the changed files info dict."""
-    raise NotImplementedError()
-
-  def __call__(self, result):
-    """Returns score and reason of this result."""
-    metric = self.GetMetric(result)
-    if metric is None:
-      logging.warning('Cannot get needed metric of result %s for scorer %s',
-                      repr(result.ToDict()), self.name)
-      return 0, ''
-
-    score = self.Score(metric)
-    reason = self.Reason(metric, score)
-    changed_files = self.ChangedFiles(result, score)
-    return score, reason, changed_files
-
-  @property
-  def name(self):
-    return self.__class__.__name__