version.cpp

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/*
 * Copyright (C) Volition, Inc. 1999.  All rights reserved.
 *
 * All source code herein is the property of Volition, Inc. You may not sell 
 * or otherwise commercially exploit the source or things you created based on the 
 * source.
 *
*/ 

#include "globalincs/pstypes.h"
#include "globalincs/version.h"

namespace version
{
        bool check_at_least(int major, int minor, int build, int revision)
        {
                if (FS_VERSION_MAJOR < major)
                {
                        return false;
                }
                if (FS_VERSION_MAJOR > major)
                {
                        // Major is greater than the given version => the rest doesn't matter
                        return true;
                }
                // major is now equal to our major version
                
                if (FS_VERSION_MINOR < minor)
                {
                        return false;
                }
                if (FS_VERSION_MINOR > minor)
                {
                        // Minor is greater than the given version => the rest doesn't matter
                        return true;
                }
                // minor is now equal to our minor version
                
                if (FS_VERSION_BUILD < build)
                {
                        return false;
                }
                if (FS_VERSION_BUILD > build)
                {
                        // build is greater than the given version => the rest doesn't matter
                        return true;
                }
                // build is now equal to our build version
                
                if (revision == 0)
                {
                        // Special case, if there is no revision info, skip it
                        return true;
                }
                if (FS_VERSION_REVIS == 0)
                {
                        // Special case, when there is no revision ignore it
                        return true;
                }
                
                if (FS_VERSION_REVIS < revision)
                {
                        return false;
                }
                if (FS_VERSION_REVIS > revision)
                {
                        // build is greater than the given version => the rest doesn't matter
                        return true;
                }
                
                // revision is now equal to our revision version
                return true;
        }
        
        SCP_string format_version(int major, int minor, int build, int revision)
        {
                SCP_stringstream ss;
                
                ss << major << "." << minor << "." << build;
                
                if (revision != 0)
                {
                        ss << "." << revision;
                }
                
                return ss.str();
        }
}