FileInstall; If Not FileExists necessity?

[HankHell]

 

was wondering if it was necessary to check if the file exists before FileInstall, so that every time I start the program up, it won't write the jpeg into my temp folder again. however I don't know the behavior of FileInstall, so I don't know if it checks before installing in the first place.

 

Also, DirCreate should just return error code if the directory exists, and if it doesn't, it'll install the directory anyhow, right? so technically I don't need to check if the directory exists already.

If Not FileExists(@TempDir & '\Temps') Then DirCreate(@TempDir & '\Temps')
    If Not FileExists(@TempDir & '\Temps\Background.jpeg') Then FileInstall('C:\Backgrounds\Background.jpeg', @TempDir & '\Temps\Background.jpeg', 1)

 

Edited February 13, 2018 by HankHell

[BrewManNH]

FileInstall with the overwrite flag set to 0 will not overwrite files if they already exist. So, it won't try to reinstall files that are already there.

43 minutes ago, HankHell said:

so technically I don't need to check if the directory exists already.

That's true, it's not going to cause any problems trying to create a directory that already exists from all that I know about DirCreate.