//
//	aegis - project change supervisor
//	Copyright (C) 2002-2008 Peter Miller
//
//	This program is free software; you can redistribute it and/or modify
//	it under the terms of the GNU General Public License as published by
//	the Free Software Foundation; either version 3 of the License, or
//	(at your option) any later version.
//
//	This program is distributed in the hope that it will be useful,
//	but WITHOUT ANY WARRANTY; without even the implied warranty of
//	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//	GNU General Public License for more details.
//
//	You should have received a copy of the GNU General Public License
//	along with this program. If not, see
//	<http://www.gnu.org/licenses/>.
//

#include <libaegis/change/file.h>
#include <libaegis/os.h>
#include <libaegis/os/isa/path_prefix.h>
#include <libaegis/pconf.h>


int
change_file_is_config(change::pointer cp, string_ty *file_name)
{
    pconf_ty        *pconf_data;
    fstate_src_ty   *src;

    //
    // By reading the project configuration information, all of the config
    // files' usage will be adjusted to call themselves config files.
    //
    pconf_data = change_pconf_get(cp, 0);

    //
    // Now hunt for the file and see if it has a usage of "config".
    //
    src = change_file_find(cp, file_name, view_path_extreme);
    if (src)
    {
	return (src->usage == file_usage_config);
    }

    //
    // It is a new file.
    // If the file is within the config directory it will be a config file.
    //
    if
    (
	pconf_data->configuration_directory
    &&
	os_isa_path_prefix(pconf_data->configuration_directory, file_name)
    )
	return 1;

    //
    // If this is a bogus config file, it won't have the build_command set.
    // It means that there is no config file in existence in the project yet.
    //
    if (!pconf_data->build_command)
    {
	string_ty       *s;
	int             ok;

	s = str_from_c(THE_CONFIG_FILE_NEW);
	ok = str_equal(s, file_name);
	str_free(s);
	if (ok)
	    return 1;

	s = str_from_c(THE_CONFIG_FILE_OLD);
	ok = str_equal(s, file_name);
	str_free(s);
	if (ok)
	    return 1;
    }

    //
    // It isn't a config file.
    //
    return 0;
}