//
//	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 <common/error.h> // for assert
#include <libaegis/change.h>
#include <libaegis/change/env_set.h>
#include <libaegis/lock.h>
#include <libaegis/os.h>
#include <libaegis/sub.h>


void
change_run_integrate_begin_undo_command(change::pointer cp)
{
    sub_context_ty  *scp;
    pconf_ty        *pconf_data;
    string_ty       *the_command;
    string_ty       *dir;

    assert(!lock_active());
    assert(cp->reference_count >= 1);
    pconf_data = change_pconf_get(cp, 0);
    the_command = pconf_data->integrate_begin_undo_command;
    if (!the_command || !the_command->str_length)
	return;
    scp = sub_context_new();
    the_command = substitute(scp, cp, the_command);
    sub_context_delete(scp);

    dir = change_development_directory_get(cp, 1);
    change_env_set(cp, 0);
    change_become(cp);
    os_execute(the_command, OS_EXEC_FLAG_NO_INPUT + OS_EXEC_FLAG_ERROK, dir);
    change_become_undo(cp);
    str_free(the_command);
}