CrOS: Update public waterfall to auto-configure.

masters/master.chromiumos/slaves.cfg

-# -*- python -*-
-# ex: set syntax=python:
-
-# Copyright (c) 2012 The Chromium Authors. All rights reserved.
+# Copyright (c) 2015 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.
 
-builder_hostname_map = {
-    'amd64-generic ASAN': ['build84-m2'],
-    'amd64-generic paladin': ['build141-m2'],
-    'amd64-generic_freon paladin': ['build182-m2'],
-    'amd64-generic full': ['build90-m2'],
-    'amd64-generic incremental': ['build86-m2'],
-    'arm-generic paladin': ['build263-m2'],
-    'arm-generic full': ['build92-m2'],
-    'daisy incremental': ['build87-m2'],
-    'daisy full': ['build91-m2'],
-    'gizmo paladin': ['build118-m2'],
-    'mipsel-o32-generic paladin': ['build112-m2'],
-    'mipsel-o32-generic full': ['build93-m2'],
-    'panther_embedded-minimal paladin': ['build203-m2'],
-    'x86-generic ASAN': ['build94-m2'],
-    'x86-generic paladin': ['build174-m2'],
-    'x86-generic incremental': ['build85-m2'],
-    'x86-generic full': ['build89-m2'],
-    'chromiumos sdk': ['build162-m2'],  # Should stay on a faster machine
-    'refresh packages (chromium:412795)': ['build94-m2'],
-}
+from chromiumos_board_config import *

[smut, 2015/04/10 21:17:17]

Why not just import chromiumos_board_config, and then refer to members with the
module. prefix? Makes it easier to trace where things are defined. Especially in
favor of importing *, because then there's no record of where certain objects
are coming from anywhere in this file.

[dnj, 2015/04/10 21:42:45]

Mostly because "chromiumos_board_config.builder_configs" is long. I'll go ahead
and do this.

 
-hostname_builder_map = {}
-for builder, hostnames in builder_hostname_map.iteritems():
-  for hostname in hostnames:
-    hostname_builder_map.setdefault(hostname, []).append(builder)
+from common.cros_chromite import SlaveType
+from twisted.python import log
+
+# Use the SlaveAlloctor declared in 'board_config'.
+sa = slave_allocator
+sa.LoadState(enforce=False)
+
+# Baremetal slaves (e.g., build123-m2)
+sa.AddPool(SlaveType.BAREMETAL, *('build%s-m2' % (number,) for number in (
+    84, 85, 86, 87, 89, 90, 91, 92, 93, 94, 94, 112, 118, 141, 162, 174, 182,
+    203, 263,
+)))
+
+for board_config in builder_configs.itervalues():
+  name = board_config.config.name
+  sa.Join(
+      name,
+      sa.Alloc(
+          'builder',
+          pools=[SlaveType.BAREMETAL],
+          exclusive=False,
+          subtype=name))
+
+def GenSlave(hostname, config_names):
+  return {
+      'master': 'ChromiumOS',
+      'builder': [builder_configs[c].builder_name
+                  for c in config_names],
+      'hostname': str(hostname),
+      'os': 'linux',
+      'version': 'precise',
+  }
 
 slaves = []
-for hostname, builders in hostname_builder_map.iteritems():
-  slaves.append({'master': 'ChromiumOS',
-                 'builder': builders,
-                 'hostname': hostname,
-                 'os': 'linux',
-                 'version': 'precise'})
+slave_map = sa.GetSlaveMap()
+for hostname, entry in slave_map.entries.iteritems():
+  slaves.append(GenSlave(hostname, entry.keys))