#!/usr/bin/env python
#
# Copyright (C) 2005-2014 ABINIT Group (Yann Pouillon)
#
# 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 ConfigParser import ConfigParser,NoOptionError
from time import gmtime,strftime

import commands
import os
import re
import sys

class MyConfigParser(ConfigParser):

  def optionxform(self,option):
    return str(option)

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

#
# Subroutines
#

# Macro header
def macro_header(name,stamp):

  return """# Generated by %s on %s

#
# Info to be made available for the core libraries of ABINIT
#

#
# IMPORTANT NOTE
#
# This file has been automatically generated by the %s
# script. If you try to edit it, your changes will systematically be
# overwritten.
#



# ABI_CORELIBS_INIT()
# -------------------
#
# Sets all variables needed to handle the core libraries.
#
AC_DEFUN([ABI_CORELIBS_INIT],[
  dnl Set include dirs
@INCDIRS@
  dnl Substitute variables
@SUBSTS@
]) # ABI_CORELIBS_INIT
""" % (name,stamp,name)



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

#
# Main program
#

# Initial setup
my_name    = "make-macros-corelibs"
my_configs = ["config/specs/corelibs.conf"]
my_output  = "config/m4/auto-corelibs.m4"

# 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/98_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_file in my_configs:
  if ( os.path.exists(cnf_file) ):
    if ( re.search("\.cf$",cnf_file) ):
      execfile(cnf_file)
  else:
    print "%s: Could not find config file (%s)." % (my_name,cnf_file)
    print "%s: Aborting now." % my_name
    sys.exit(2)

# What time is it?
now = strftime("%Y/%m/%d %H:%M:%S +0000",gmtime())

# Init
cnf = MyConfigParser()
cnf.read(my_configs[0])
abinit_corelibs = cnf.sections()
abinit_corelibs.sort()

# Init output
inc = ""
sub = ""

# Process libraries
abinit_corelibs.append("incs")
abinit_corelibs.append("mods")
for lib in abinit_corelibs:
  inc += "  src_%s_incs='-I$(top_builddir)/src/%s -I$(top_srcdir)/src/%s'\n" % \
    (lib,lib,lib)
  sub += "  AC_SUBST(src_%s_incs)\n" % (lib)

# Update macro
mac = macro_header(my_name,now)
mac = re.sub("@INCDIRS@",inc,mac)
mac = re.sub("@SUBSTS@",sub,mac)

# Finish
m4 = file(my_output,"w")
m4.write(mac)
m4.close()

tmp = commands.getoutput("./config/scripts/add-header-typed Autoconf %s" % (my_output))
if ( tmp != "" ):
  print tmp
