#============================================================================
#============================================================================
#============================================================================
#
# CBSP Builders build rules
#
# GENERAL DESCRIPTION
#    Contains builder(s) to create FAT file system BIN file
#
# Copyright (c) 2010 Qualcomm Technologies, Inc.
# All Rights Reserved.
# Confidential and Proprietary - Qualcomm Technologies, Inc.
#
#----------------------------------------------------------------------------
#
#  $Header: //components/rel/scons.tz/2.10.1/build/scons/scripts/fatfs_builder.py#1 $
#  $DateTime: 2020/01/05 22:03:50 $
#  $Author: pwbldsvc $
#  $Change: 22064710 $
# 
#                      EDIT HISTORY FOR FILE
#                      
#  This section contains comments describing changes made to the module.
#  Notice that changes are listed in reverse chronological order.
#  
# YYYY-MM-DD   who     what, where, why
# ----------   ---     ---------------------------------------------------------
# 2010-11-17   rh      Initial creation
# 
#============================================================================
import os
import subprocess
import string
import re
import glob
import shutil
import sys

#----------------------------------------------------------------------------
# Global values
#----------------------------------------------------------------------------
CPFATFS_TOOLS_ROOT = "${BUILD_ROOT}/core/storage/tools/fattool"
CPFATFS_TOOLS_CMD = "${BUILD_ROOT}/core/storage/tools/fattool/cpfatfs${EXE_EXT}"
CPFATFS_FAT_CONTAINER = CPFATFS_TOOLS_ROOT + "/fat.bin"

#----------------------------------------------------------------------------
# Hooks for Scons
#----------------------------------------------------------------------------
def exists(env):
   return env.Detect('fatfs_build')

def generate(env):
   fatfs_generate(env)

#============================================================================
# FATFS build rules
#============================================================================
def fatfs_generate(env):
   #env.AddMethod(fatfs_builder, "FatfsBuilder")

   fatfs_act = env.GetBuilderAction(fatfs_builder)
   fatfs_bld = env.Builder(action = fatfs_act,
                           emitter = fatfs_emitter,
                           suffix = '.mbn')

   env.Append(BUILDERS = {'FatfsBuilder' : fatfs_bld})
   
#----------------------------------------------------------------------------
# FATFS builder function
#----------------------------------------------------------------------------
def fatfs_builder(target, source, env):
   target_base = os.path.splitext(str(target))[0]
   target_full = os.path.abspath(str(target[0]))
   source_full = os.path.abspath(str(source[0]))

   if not env.has_key('TARGET_PATH'):
      raise RuntimeError, "TARGET_PATH is not defined"

   # Check if the target container exist or not, if not, copy the empty container
   if not os.path.isfile(target_full):
      shutil.copy(env.subst(CPFATFS_FAT_CONTAINER), target_full)

   cmds = [CPFATFS_TOOLS_CMD + " " + target_full + " " + env.get('TARGET_PATH') + " " + source_full]

   data, err, rv = env.RunCmds(target, source, cmds)


#----------------------------------------------------------------------------
# FATFS builder emitter
#----------------------------------------------------------------------------
def fatfs_emitter(target, source, env):

   env.Depends(target, env.RealPath(CPFATFS_TOOLS_CMD))
   return (target, source)