(CC) Get hard drive size

listAll = function(_path, _files, noredundant, excludeFiles)
    local thisProgram = ""
    if shell then
        thisProgram = shell.getRunningProgram()
    end
    local path = _path or ""
    local files = _files or {}
    if #path > 1 then table.insert(files, path) end
    for _, file in ipairs(fs.list(path)) do
        local path = fs.combine(path, file)
        if (file ~= thisProgram) and (not fs.isReadOnly(file)) then
            local guud = true
            for a = 1, #excludeFiles do
                if excludeFiles[a] == file then
                    guud = false
                    break
                end
            end
            if guud then
                if fs.isDir(path) then
                    listAll(path, files, noredundant, excludeFiles)
                else
                    table.insert(files, path)
                end
            end
        end
    end
    if noredundant then
        for a = 1, #files do
            if fs.isDir(tostring(files[a])) then
                if #fs.list(tostring(files[a])) ~= 0 then
                    table.remove(files,a)
                end
            end
        end
    end
    return files
end

local tArg = {...}

function getAllSpace(path)
    local freespace = fs.getFreeSpace(path or "")
    local filetree = listAll(path or "",{},false,{})
    for a = 1, #filetree do
        if not fs.isDir(filetree[a]) then
            freespace = freespace + fs.getSize(filetree[a])
        end
    end
end

print(getAllSpace(tArg[1]))