maybeUpdateSize

fn maybeUpdateSize(io: Io, resize_flag: bool) !void {
    if (!resize_flag) return;

    const file = global_progress.terminal;

    if (is_windows) {
        var get_console_info = windows.CONSOLE.USER_IO.GET_SCREEN_BUFFER_INFO;
        switch (try get_console_info.operate(io, file)) {
            .SUCCESS => {
                global_progress.rows = @intCast(get_console_info.Data.dwWindowSize.Y);
                global_progress.cols = @intCast(get_console_info.Data.dwWindowSize.X);
            },
            else => {
                std.log.debug("failed to determine terminal size; using conservative guess 80x25", .{});
                global_progress.rows = 25;
                global_progress.cols = 80;
            },
        }
    } else {
        var winsize: posix.winsize = .{
            .row = 0,
            .col = 0,
            .xpixel = 0,
            .ypixel = 0,
        };

        const err = (try io.operate(.{ .device_io_control = .{
            .file = file,
            .code = posix.T.IOCGWINSZ,
            .arg = &winsize,
        } })).device_io_control;

        if (err >= 0) {
            global_progress.rows = winsize.row;
            global_progress.cols = winsize.col;
        } else {
            std.log.debug("failed to determine terminal size; using conservative guess 80x25", .{});
            global_progress.rows = 25;
            global_progress.cols = 80;
        }
    }
}