function ThemeUpdate()
    local scheme_name = "tokyodark" -- default if unable to parse from file
    local current_theme_file = vim.fn.stdpath("config") .. "/current-theme"
    local ok, theme = pcall(dofile, current_theme_file)
    if ok then
        scheme_name = theme.colorscheme_name
    end
    vim.cmd.colorscheme(scheme_name)
    pcall(dofile, vim.fn.stdpath('config') .. '/lua/theme_transparency.lua')
end

function TmpBuff(split_opt)
    local new_cmd = split_opt or "enew"
    vim.cmd(new_cmd)
    vim.opt_local.buftype = "nofile"
    vim.opt_local.bufhidden = "hide"
    vim.opt_local.swapfile = false
    vim.cmd("file tmp_" .. os.date("%Y%m%d_%H%M%S"))
end

function ReadShellCmd(command)
    vim.cmd("read !" .. command)
end

function ToggleTabsSpaces()
    if vim.opt.expandtab:get() then
        vim.opt.expandtab = false
        print("using actual tabs")
    else
        vim.opt.expandtab = true
        print("using spaces in place of tabs")
    end
end