How to effectively overwrite entire folders in Qt C++?

heftlas

Hello!

If I have two QDir objects

QDir source;
QDir destiny;

How can I effectively overwrite source into destiny using Qt?

I want every existing file to be overwritten (the source version will be copied onto destiny) and any folders that are not present at destiny should be copied.

I couldn't find in the documentation anything specifically for that. Am I missing something?

Do I have to actually just iterate through every file in source and then remove/copy onto destiny?
Then if it's a folder do I have to actually QDir::cd into them and do the same thing (if it exists at destiny)?

I'm asking here because I think I'm missing something. Isn't there something like QDir::rename that actually works when directories already exist?

SGaist

Then you can use QDirIterator to go through your source folder and copy files/create folder based on what it provides you.

SGaist

Hi,

Are you trying to reimplement something like the rsync utility ?

heftlas

@SGaist Nope! I just really want to overwrite a folder onto another.

SGaist

Then you can use QDirIterator to go through your source folder and copy files/create folder based on what it provides you.

heftlas

@SGaist Thank you! I did it using QDir::entryInfoList but I guess QDirIterator would be much better.