Add initial sketch to shill repository

SConstruct

+# Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import os
+
+Help("""\
+Type: 'scons' to build and 'scons -c' to clean\
+""")
+
+# Create a base environment including things that are likely to be common
+# to all of the objects in this directory. We pull in overrides from the
+# environment to enable cross-compile.
+base_env = Environment()
+for key in Split('CC CXX AR RANLIB LD NM PKG_CONFIG'):
+  value = os.environ.get(key)
+  if value is not None:
+    base_env[key] = value
+for key in Split('CFLAGS CPPFLAGS CXXFLAGS CCFLAGS CPPPATH LIBPATH'):
+  value = os.environ.get(key, '')
+  base_env[key] = Split(value)
+
+extra_flags = '-fno-strict-aliasing -Wall -Wextra -Werror -Wuninitialized'
+extra_cppflags = '-D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS'
+base_env['CFLAGS'].extend(Split(extra_flags))
+base_env['CXXFLAGS'].extend(Split(extra_flags))
+base_env['CPPFLAGS'].extend(Split(extra_cppflags))
+
+# Fix issue with scons not passing some vars through the environment.
+for key in Split('SYSROOT'):
+  if key in os.environ:
+    base_env['ENV'][key] = os.environ[key]
+base_env.Append(CPPPATH=['..'])
+
+shill_env = base_env.Clone()
+shill_env.ParseConfig(
+  os.environ['PKG_CONFIG'] + ' --cflags --libs dbus-1 dbus-glib-1'
+)
+shill_env.Append(LIBS=['base', 'glog'])
+
+shill_sources = Split('''\
+  shill_logging.cc shill_daemon.cc shill_config.cc shill_event.cc
+  resource.cc manager.cc service.cc device.cc
+  dbus_control.cc
+''')
+shill_lib = shill_env.Library('shill_lib', shill_sources)
+shill = shill_env.Program('shill', ['shill_main.cc', shill_lib])
+Default(shill)
+
+# Build unit tests
+tests = []
+testrunner = base_env.Library('testrunner', ['testrunner.cc'])
+shill_unittest_env = shill_env.Clone()
+shill_unittest_env.Append(LIBS=['gtest', 'gmock'])
+deps = [testrunner, 'shill_unittest.cc']
+deps.append(shill_lib)
+tests.append(shill_unittest_env.Program('shill_unittest', deps))
+AlwaysBuild(base_env.Alias('tests', tests))