Add ChromiumOS Trybot support.

scripts/master/cros_builders_pools.py

+# Copyright (c) 2011 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.
+
+"""Implement builder selection for CrOS."""
+
+from master.builders_pools import BuildersPools
+
+class CrOSBuildersPools(BuildersPools):
+  """Adds support for builder config->name mappings."""
+
+  def __init__(self, default_pool_name, builder_mapping, parent=None):
+    BuildersPools.__init__(self, default_pool_name, parent)
+    self._builder_mapping = builder_mapping
+
+  def Select(self, builder_names=None, pool_name=None):
+    """Returns list of selected builder names.
+
+    Args:
+      builder_names: A list of CrOS build configurations (i.e.,
+                     x86-generic-pre-flight-queue) to select.
+      pool_name: The builder pool to look in.
+
+    Returns:
+      A list of buildbot builder names.
+    """
+    # If the user has requested specific build configurations, return the
+    # corresponding builder names.
+    if builder_names:
+      return [self._builder_mapping.get(name) for name in builder_names]
+    else:
+      return BuildersPools.Select(self, None, pool_name)