Copy Directorystruct ure with files

[Dafmeister]

Hello,

I would like to make a copy function, like xcopy but in c++.I wouldn't use xcopy in my c++ file, because I don't have enough error catching.

I would like to copy the whole directory structure from source to destination, but if the file or directory exists in the destination, it may not be copied again.

I wrote this code. But it doesn't work. Can somebody help me please?

SHFILEOPSTRUCT fileop;
fileop.hwnd = NULL;
fileop.wFunc = FO_COPY;
fileop.pFrom = "C:\\a\\*.*\0"; // additional null needed
fileop.pTo = "C:\\b\\\0"; // additional null needed
fileop.fFlags = FOF_NOCONFIRMATION|FOF_NOCONFIRMMKDIR |FOF_RENAMEONCOLLISION;
 
if (!SHFileOperation(&fileop) == NULL)
{
printf("copy failed");
getchar();
} 

[Banfa]

In what way does it not work?

[Dafmeister]

Nope, Because if I coppied the directory "foo" (c:\a\foo) to (c:\b\). I get c:\'\foo. Ok, that's correct, but if I copied c:\a\foo again to c:\b\. I get this:

-c:\
-b\
-foo\
-copy of foo\

And that's not wat I'm want, I want this, if I coppied the directory again:

-c:\
-b\
-foo\

If I change a file in c:\a\foo and I copied it to c:\b en foo and the file does exists in this directory, I want that the file becomes overwrite.


So, Directories may not overwrite and files must be overwrite.

I hope I make myself clear enough.

[Dafmeister]

@Dafmeister
I mean: I get c:\b\foo

[Banfa]

The FOF_RENAMEONCOL LISION flag you are using specifically tells the function to rename (add "Copy of") if the destination already exists.

[Dafmeister]

Yes I know,

But the directories may not get "Copy of" but files with the same name must get "Copy of"

How do I do that?

[Banfa]

Instead of calling a shell function you do the work yourself making use of the File management Functions in WIN32.

With the use of the FOF_NORECURSION flag you could probably still use SHFileOperation to do the file copying while handling the directories yourself.

[Dafmeister]

Do you have any tips or an example, because that's the reason why I'm asking.

[Banfa]

Not really, I have done this sort of thing in the past but not recently, I think you could use FindFirstEx plus related functions to traverse your directory tree to copy creating directories in the destination as required and copying the files.