Function FS_InitFilesystem

code/qcommon/files.cpp:2956–2994

================ FS_InitFilesystem Called only at inital startup, not when the filesystem is resetting due to a game change ================ */

================
*/
void FS_InitFilesystem( void ) {
	// allow command line parms to override our defaults
	// we have to specially handle this, because normal command
	// line variable sets don't happen until after the filesystem
	// has already been initialized
	Com_StartupVariable( "fs_cdpath" );
	Com_StartupVariable( "fs_basepath" );
	Com_StartupVariable( "fs_homepath" );
	Com_StartupVariable( "fs_game" );
	Com_StartupVariable( "fs_copyfiles" );
	Com_StartupVariable( "fs_dirbeforepak" );
#ifdef MACOS_X
	Com_StartupVariable( "fs_apppath" );
#endif

	const char *gamedir = Cvar_VariableString("fs_game");
	bool requestbase = false;
	if ( !FS_FilenameCompare( gamedir, BASEGAME ) )
		requestbase = true;

	if ( requestbase )
		Cvar_Set2( "fs_game", "", qtrue );

	// try to start up normally
	FS_Startup( BASEGAME );

	// if we can't find default.cfg, assume that the paths are
	// busted and error out now, rather than getting an unreadable
	// graphics screen when the font fails to load
	if ( FS_ReadFile( "default.cfg", NULL ) <= 0 ) {
		Com_Error( ERR_FATAL, "Couldn't load default.cfg" );
		// bk001208 - SafeMode see below, FIXME?
	}

	Q_strncpyz(lastValidBase, fs_basepath->string, sizeof(lastValidBase));
	Q_strncpyz(lastValidGame, fs_gamedirvar->string, sizeof(lastValidGame));

  // bk001208 - SafeMode see below, FIXME?
}

/*
================