LÖVE

Posted: **Thu Sep 27, 2018 1:06 pm**

I want to write a utility that creates some files and directories but places them into the same folder as the program rather than into the save directory. After some research I figured the easy way to do this was to create what I wanted in the save folder and then call os.rename to move it where I needed it. But the program I wrote to test the process isn't working.

Here's my code:

Code: Select all

require("os")

function love.load()
	fileName = "Test.txt"
	saveDir = love.filesystem.getSaveDirectory( )
	sourceDir = love.filesystem.getSourceBaseDirectory( )
	oldPath = saveDir.."/"..fileName
	newPath = sourceDir.."/"..fileName
end

function love.draw()
	love.graphics.print(oldPath, 100, 100)
	love.graphics.print(newPath, 100, 200)	
end

os.rename(oldPath, newPath)

When I comment out the os.rename line at the end I get the expected result (the source and destination paths are correctly shown). But the os.rename line itself gives the following error:

Code: Select all

Error

main.lua:17: bad argument #1 to 'rename' (string expected, got nil)


Traceback

[C]: in function 'rename'
main.lua:17: in main chunk
[C]: in function 'require'
[C]: in function 'xpcall'
[C]: in function 'xpcall'

Before you ask: yes, there is a Test.txt file waiting in the correct place.

Any idea what I'm doing wrong?

Posted: **Thu Sep 27, 2018 1:53 pm**

You're using oldPath and newPath before anything has been assigned to them. LÖVE will read your main.lua file, execute top level code, and only after that love.load will be called.

Posted: **Thu Sep 27, 2018 2:37 pm**

[smacks forehead]

Right. Moving the string declarations out of the load function fixed it. Thanks.

LÖVE

[SOLVED] os.rename function causing crash

[SOLVED] os.rename function causing crash

Re: os.rename function causing crash

[SOLVED] os.rename function causing crash