Can't solve this one

[Alienhead]

I need to append  some text to the end of a file, I couldn't find any append to file functionality for this so I created a work around.. 

--------------------------------------------------------------
function CreateNewProfile(fname)

   -- add profile to master profile list
   local f_masterlist = FileSystem:OpenFile("saves/index.hdr")
   local f_temp = FileSystem:WriteFile("saves/temp.file")
  
   
   while (not f_masterlist:EOF()) do
      local readit = f_masterlist:ReadLine()
      f_temp:WriteLine(readit)
   end

   -- append new profile
   f_temp:WriteLine(fname) 

   -- close files
   f_masterlist:Release()
   f_temp:Release()
      
   --
   delay(1000)

   -- delete and rename master list files   
   FileSystem:DeleteFile("saves/index.hdr")
   FileSystem:RenameFile("saves/temp.file","saves/index.hdr")
   

end

The read and writing works fine but it will not delete the old file and or rename the new file.

** Note: I have sandbox off.

Is it safe to use lua's i/o commands?

 

-- Opens a file in append mode
file = io.open("test.lua", "a")

 

[Josh]

I don't see anything wrong with your code. You could try to manually delete the file after this routine runs. If you are able to delete it, maybe there is a permissions issue. If the file is locked then the program isn't closing the stream.

It's better to use ReadFile instead of OpenFile, in this situation, although that shouldn't make any difference.

Lua's IO commands are fine to use.