#!/usr/bin/env python
#
# Copyright (c) 2005-2006 The ABINIT Group (Yann Pouillon)
# All rights reserved.
#
# This file is part of the ABINIT software package. For license information,
# please see the COPYING file in the top-level directory of the ABINIT source
# distribution.
#

from time import gmtime,strftime

import commands
import os
import re
import sys

# ---------------------------------------------------------------------------- #

#
# Subroutines
#

# Makefile header
def makefile_header():

 return """
# ---------------------------------------------------------------------------- #

#
# Individual targets for binaries
#

"""



# ---------------------------------------------------------------------------- #

#
# Main program
#

# Initial setup
my_name    = "add-targets-binaries"
my_configs = ["config/specs/libraries.cf","config/specs/binaries.cf"]
my_output  = "Makefile.am"

# Check if we are in the top of the ABINIT source tree
if ( not os.path.exists("configure.ac") or
     not os.path.exists("src/main/abinit.F90") ):
 print "%s: You must be in the top of an ABINIT source tree." % my_name
 print "%s: Aborting now." % my_name
 sys.exit(1)

# Read config file(s)
for cnf in my_configs:
 if ( os.path.exists(cnf) ):
  execfile(cnf)
 else:
  print "%s: Could not find config file (%s)." % (my_name,cnf)
  print "%s: Aborting now." % my_name
  sys.exit(2)

# Start writing to Makefile.am
mf = file(my_output,"a")
mf.write(makefile_header())

# Create targets for external binaries
for lib in abinit_libs:

 # Init
 if ( lib in abilibs_specs ):
  specs = abilibs_specs[lib]
 else:
  specs = ABI_LIB_NIL

 if ( (specs & ABI_LIB_EXT) == 0 ):
  lib_dir = "src"
 else:
  lib_dir = "lib"

 if ( (specs & ABI_LIB_OPT) != 0 ):
  mf.write("if DO_BUILD_%s\n%s:\n\tcd %s/%s && $(MAKE) all\nelse\n%s:\n\t@echo 'Not building the %s library'\nendif\n\n" % \
   (lib.upper(),lib,lib_dir,lib,lib,lib.upper()))

# Process each binary
for abibin in abinit_bins:

 # Init
 if ( abibin in abibins_specs ):
  specs = abibins_specs[abibin]
 else:
  specs = ABI_BIN_NIL

 if ( (specs & ABI_BIN_MPI) == 0 ):
  bins = [abibin]
 else:
  bins = [re.sub(".$","s",abibin),re.sub(".$","p",abibin)]

 # Produce all binaries related to one source file
 for bin in bins:

  # Init
  bin_make = "\n\tcd src/main && $(MAKE) %s$(EXEEXT)\n\n" % (bin)
  bin_deps = ""

  # List all libraries the binary depends on
  for lib in eval("%s_deps" % (abibin)):

   # Init
   if ( lib in abilibs_specs ):
    lib_specs = abilibs_specs[lib]
   else:
    lib_specs = ABI_LIB_NIL

   # Set suffix for library
   if ( (lib_specs & ABI_LIB_MPI) == 0 ):
    lib_suffix = ""
   else:
    if ( (specs & ABI_BIN_MPI) == 0 ):
     lib_suffix = "s"
    else:
     if ( bin == bins[0] ):
      lib_suffix = "s"
     else:
      lib_suffix = "p"

   # Set directory for library
   if ( (lib_specs & ABI_LIB_EXT) == 0 ):
    lib_dir = "src"
   else:
    lib_dir = "lib"

   if ( (lib_specs & ABI_LIB_OPT) == 0 ):
    if ( (lib_specs & ABI_LIB_OWN) == 0 ):
     bin_make = "\n\tcd %s/%s && $(MAKE) lib%s.a" % \
      (lib_dir,lib,lib+lib_suffix) + bin_make
    else:
     bin_make = "%s\n\tcd %s/%s && $(MAKE) all" % \
      (lib_deps,lib_dir,lib) + bin_make
   else:
    bin_deps += " %s" % lib

  # Write results
  mf.write("# Individual build of %s\n%s:%s%s" % (bin,bin,bin_deps,bin_make))

mf.close()