deleting file with a running program

[LordNocturnus 1]

Hello

i am trying to download a file use it and delete it again to make space on the hard drive for the next file but i does not delete the file somehow:

local c = require("component")
local computer = require("computer")
local internet = require("internet")
local fs = require("filesystem")
local p = c.printer3d
args = {...}

link = "https://raw.githubusercontent.com/LordNocturnus/sf-"
folder = "/master/"
imax = 0

local TIMEOUT = 4  -- in seconds

for i = 0, imax do
 local url = link .. i .. folder .. "list.txt"
 local status, connection = pcall(internet.request, url)
 if not status or not connection then
  print("Download of " .. url .. " failed.")
 else
  local startTime = computer.uptime()
  while true do
   local response, isFinished = pcall(connection.finishConnect)
   if response and isFinished then
    local f = io.open("list.txt", "wb")
--    print(status)
--    print(response)
    print(isFinished)
--    print(connection)
    for chunk in connection do
     f:write(chunk)
    end
    f:close()
    break
   elseif computer.uptime() - startTime > TIMEOUT then
    print("Request to " .. url .. " timed out")
    os.exit()
   else
    os.sleep(0.25)
   end
  end
 end
 for line in io.lines('list.txt') do
  print(line)
  local url = link .. i .. folder .. line .. ".mb3d"
  local status, connection = pcall(internet.request, url)
  if not status or not connection then
   print("Download of " .. url .. " failed.")
  else
   local startTime = computer.uptime()
   while true do
    local response, isFinished = pcall(connection.finishConnect)
    if response and isFinished then
     local f = io.open(line .. ".mb3d", "wb")
--     print(status)
--     print(response)
     print(isFinished)
--     print(connection)
     for chunk in connection do
      f:write(chunk)
     end
     f:close()
     break
    elseif computer.uptime() - startTime > TIMEOUT then
     print("Request to " .. url .. " timed out")
     os.exit()
    else
     os.sleep(0.25)
    end
   end
  end
  cords = {}
  for i in string.gmatch(line,"([^-]+)") do
   cords[#cords+1] = tonumber(i)
  end
  print(cords[1],cords[2],cords[3])
--  printer(cords[1],cords[2],cords[3]) -- do something with the file
  file = string.format("%d-%d-%d.mb3d", cords[1],cords[2],cords[3])
  fs.remove(file)
 end
end

[Ta©ti Tac0Z 2]

Hi, next time please post code inside:

--code windows like this one witch makes it 10 times easyer to read (by useing the </> icon while also chanceing html to lua in the drop down menu when useing the </> button)

for my convines (and for others am going to do this for you):

 local c = require("component")
local computer = require("computer")
local internet = require("internet")
local fs = require("filesystem")
local p = c.printer3d
args = {...}

link = "https://raw.githubusercontent.com/LordNocturnus/sf-"
folder = "/master/"
imax = 0

local TIMEOUT = 4  -- in seconds

for i = 0, imax do
 local url = link .. i .. folder .. "list.txt"
 local status, connection = pcall(internet.request, url)
 if not status or not connection then
  print("Download of " .. url .. " failed.")
 else
  local startTime = computer.uptime()
  while true do
   local response, isFinished = pcall(connection.finishConnect)
   if response and isFinished then
    local f = io.open("list.txt", "wb")
--    print(status)
--    print(response)
    print(isFinished)
--    print(connection)
    for chunk in connection do
     f:write(chunk)
    end
    f:close()
    break
   elseif computer.uptime() - startTime > TIMEOUT then
    print("Request to " .. url .. " timed out")
    os.exit()
   else
    os.sleep(0.25)
   end
  end
 end
 for line in io.lines('list.txt') do
  print(line)
  local url = link .. i .. folder .. line .. ".mb3d"
  local status, connection = pcall(internet.request, url)
  if not status or not connection then
   print("Download of " .. url .. " failed.")
  else
   local startTime = computer.uptime()
   while true do
    local response, isFinished = pcall(connection.finishConnect)
    if response and isFinished then
     local f = io.open(line .. ".mb3d", "wb")
--     print(status)
--     print(response)
     print(isFinished)
--     print(connection)
     for chunk in connection do
      f:write(chunk)
     end
     f:close()
     break
    elseif computer.uptime() - startTime > TIMEOUT then
     print("Request to " .. url .. " timed out")
     os.exit()
    else
     os.sleep(0.25)
    end
   end
  end
  cords = {}
  for i in string.gmatch(line,"([^-]+)") do
   cords[#cords+1] = tonumber(i)
  end
  print(cords[1],cords[2],cords[3])
--  printer(cords[1],cords[2],cords[3]) -- do something with the file
  file = string.format("%d-%d-%d.mb3d", cords[1],cords[2],cords[3])
  fs.remove(file)
 end
end 

 

ok then when thats done let me see...

[Ta©ti Tac0Z 2]

terms:

the working directory: "the path that the shell is currently in (eg: if in the shell it says: "/home #" the working directory whould be "/home")

file-root (root): "is the root foldire of the virtuel computers filesystem "/" if not chanched in the mods code. all you need to know is that root means "/"

 

your program install/downloads the file on the working directory say for instane i am in "/home" when i start the program the files is going to be installed in that foldire then (eg "/home/0-41-0.mb3d") altho when you are deleteing the files you do not delete them from the working directory (eg: the program is trying to delete: "0-41-0.mb3d" insted of "/home/0-41-0.mb3d".

toavoid OC to write the files to the working directory we write "/" infront of all the paths when downloading so we tell the mod to write the files at the root ("/") insted of just the working directory a good practese is to all ways incluce a "/" first sense its not all functions who uses the working direcrtory forintance "fs.remove()" doesn't

 

this is a working version:

local c = require("component")
local computer = require("computer")
local internet = require("internet")
local fs = require("filesystem")
local p = c.printer3d
args = {...}

link = "https://raw.githubusercontent.com/LordNocturnus/sf-"
folder = "/master/"
imax = 0

local TIMEOUT = 4  -- in seconds

for i = 0, imax do
 local url = link .. i .. folder .. "list.txt"
 local status, connection = pcall(internet.request, url)
 if not status or not connection then
  print("Download of " .. url .. " failed.")
 else
  local startTime = computer.uptime()
  while true do
   local response, isFinished = pcall(connection.finishConnect)
   if response and isFinished then
    local f = io.open("list.txt", "wb")
--    print(status)
--    print(response)
    print(isFinished)
--    print(connection)
    for chunk in connection do
     f:write(chunk)
    end
    f:close()
    break
   elseif computer.uptime() - startTime > TIMEOUT then
    print("Request to " .. url .. " timed out")
    os.exit()
   else
    os.sleep(0.25)
   end
  end
 end
 for line in io.lines('list.txt') do
  print(line)
  local url = link .. i .. folder .. line .. ".mb3d"
  local status, connection = pcall(internet.request, url)
  if not status or not connection then
   print("Download of " .. url .. " failed.")
  else
   local startTime = computer.uptime()
   while true do
    local response, isFinished = pcall(connection.finishConnect)
    if response and isFinished then
     local f = io.open("/"..line .. ".mb3d", "wb")
--     print(status)
--     print(response)
     print(isFinished)
--     print(connection)
     for chunk in connection do
      f:write(chunk)
     end
     f:close()
     break
    elseif computer.uptime() - startTime > TIMEOUT then
     print("Request to " .. url .. " timed out")
     os.exit()
    else
     os.sleep(0.25)
    end
   end
  end
  cords = {}
  for i in string.gmatch(line,"([^-]+)") do
   cords[#cords+1] = tonumber(i)
  end
  print(cords[1],cords[2],cords[3])
--  printer(cords[1],cords[2],cords[3]) -- do something with the file
  file = "/"..string.format("%d-%d-%d.mb3d", cords[1],cords[2],cords[3])
  fs.remove(file)
  print(file)
 end
end 

i added the tihng i was talking about:

adding a "/".. on line 77 and on line 53

 

am happy to help

 

 

btw, the 3d files that the program downloads sems to be curupted.

Edited August 21, 2018 by noahthegame
happy message

[Luca_S 8]

Also it might be a good idea download the file to /tmp instead of /, but that would require enough space in /tmp.

[Ta©ti Tac0Z 2]

yeah thats true

[LordNocturnus 1]

2 hours ago, noahthegame said:

 

 

 

 

btw, the 3d files that the program downloads sems to be curupted.

thanks for the fast answer and no they are not corrupted but work in progress

[Ta©ti Tac0Z 2]

ok happy to help

[LordNocturnus 1]

thanks again the code now works and you probably tried to use the files with the included printer program but they are not designed for it (wrote a custom simplifying algorithm to print them)

[Ta©ti Tac0Z 2]

Ahhhh ok

[LordNocturnus 1]

now i only have to wait for a solution of my other problem

[Ta©ti Tac0Z 2]

witch are?

[LordNocturnus 1]

 

[Ta©ti Tac0Z 2]

Ohhh

Am not that good at the 3dprinter thing but am sure somebody who knows more about it Will replay some time soon