#!/usr/bin/perl -w
#Author jun.luo sumedia 2013/10/9

use strict;
use warnings;
use Getopt::Long;
use vars qw($MKName $help $RootPath  @MKOutput);

GetOptions(
	"makefile_project|M=s" => \$MKName,
	"root_path|R=s" => \$RootPath,
	"help|h" => \$help,
);

sub Output2File($\@)
{
	my ($Outfile, $Content) = @_;

	open(OUTFILE, ">./tempFile") || die "$!\n";  # open file.

	my $cur = 0;
	my $items_count = @$Content;

	#Out put to given file
	while ($cur++ < $items_count)
	{
		print OUTFILE shift @$Content;
	}

	close(OUTFILE);

	#if content has changed, cover the origin file
	system "cmp -s $Outfile ./tempFile && rm -f ./tempFile || mv ./tempFile $Outfile";
}

if (!defined $MKName ||!defined $RootPath)
{
	print "Parameter Error!\n";
	exit 1;
}

push(@MKOutput, "# This file is auto generated by $0, don't modify~~ \n\n");
push(@MKOutput, "\nROOT_DIR:=$RootPath\n");
push(@MKOutput, "include \$(ROOT_DIR)/env.conf\n\n");

push(@MKOutput, "CFLAGS_TMP = CFLAGS\n");
push(@MKOutput, "\n");
push(@MKOutput, "ifeq (\$(VERSION).\$(PATCHLEVEL).\$(SUBLEVEL), \$(filter \$(VERSION).\$(PATCHLEVEL).\$(SUBLEVEL),2.6.27 2.6.35 3.0.8))\n");
push(@MKOutput, "        CFLAGS_TMP = EXTRA_CFLAGS\n");
push(@MKOutput, "endif\n");
push(@MKOutput, "\n");
push(@MKOutput, "ifneq (\$(filter drivers kernel,\$(subst /, ,\$(CURDIR))),)\n");
push(@MKOutput, "        ifeq (\$(filter aps,\$(subst /, ,\$(CURDIR))), aps)\n");
push(@MKOutput, "                \$(error both aps and drivers found???)\n");
push(@MKOutput, "        else\n");
push(@MKOutput, "                # include by driver\n");
push(@MKOutput, "                \$(CFLAGS_TMP) += -include project.h\n");
push(@MKOutput, "        endif\n");
push(@MKOutput, "else\n");
push(@MKOutput, "        ifeq (\$(filter aps,\$(subst /, ,\$(CURDIR))), aps)\n");
push(@MKOutput, "                # include by ap\n");
push(@MKOutput, "                APSDIR=\$(shell echo `pwd` | sed 's/aps\\/.*/aps/g')\n");
push(@MKOutput, "                \$(CFLAGS_TMP) += -include \$(APSDIR)/include/project.h\n");
push(@MKOutput, "        else\n");
push(@MKOutput, "                # include by quickbuild\n");
push(@MKOutput, "                ifneq (\$(filter qb,\$(subst /, ,\$(CURDIR))), qb)\n");
push(@MKOutput, "                        #\$(error aps, drivers and qb not found???)\n");
push(@MKOutput, "                endif\n");
push(@MKOutput, "        endif\n");
push(@MKOutput, "endif\n");

Output2File($MKName, @MKOutput);

exit 0;