Make better (and more efficient) use of Hammer functionality...

build/SConscript.main

 # Copyright (c) 2006-2008 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.
 
 import os
 import shutil
 import sys
 
 
 p = ARGUMENTS.get('PROGRESS')
@@ skipping 10 matching lines @@
 
 load = ARGUMENTS.get('LOAD')
 if load:
     load = load.split(',')
 else:
     load = []
 
 
 root_env = Environment(
     tools = ['component_setup'],
+
     CHROME_SRC_DIR = '$MAIN_DIR/..',
     DESTINATION_ROOT = '$MAIN_DIR/Hammer',
     TARGET_ROOT = '$DESTINATION_ROOT',
 
+    # Where ComponentTestProgram() will build test executables.
+    TESTS_DIR = '$TARGET_ROOT',
+
+    # Where ComponentProgram() will build program executables.
+    STAGING_DIR = '$TARGET_ROOT',
+
+    # Where ComponentLibrary() will build libraries.
     LIBS_DIR              = '$COMPONENT_LIBRARY_DIR',
 
+    # TODO(hammer):  when Hammer supports this...
+    # Have Hammer prefix all Library aliases with lib_ (to avoid
+    # collisions with the component names themselves).
+    #COMPONENT_LIBRARY_ALIAS = 'lib_$LIBNAME',
+
     # Disable running of tests thru scons for now.
     COMPONENT_TEST_CMDLINE = '',
 
     BASE_DIR              = '$OBJ_ROOT/base',
     BREAKPAD_DIR          = '$OBJ_ROOT/breakpad',
     CHROME_DIR            = '$OBJ_ROOT/chrome',
     GEARS_DIR             = '$OBJ_ROOT/gears',
     GOOGLE_UPDATE_DIR     = '$OBJ_ROOT/google_update',
     GOOGLEURL_DIR         = '$OBJ_ROOT/googleurl',
     NET_DIR               = '$OBJ_ROOT/net',
@@ skipping 623 matching lines @@
       COMPONENT_VS_SOLUTION_DIR='$MAIN_DIR',
       COMPONENT_VS_PROJECT_DIR='$MAIN_DIR/projects',
       COMPONENT_VS_PROJECT_SCRIPT_PATH=(
         'cd $$(ProjectDir)/$VS_PROJECT_TO_MAIN_DIR && hammer.bat'),
   )
 
   Default(None)  # Delete all other default targets.
   Default([src_solution, solution])  # Build just the solution.
 
 # -------------------------------------------------------------------------