On Thu, Apr 20, 2017 at 09:21:01PM +0200, Nicolas Cellier wrote:
> 2017-04-20 9:53 GMT+02:00 Alistair Grant <akgrant0710@gmail.com>:
>
>�� �� ��> What? Google this: man stat The first field of stat structure is
>�� �� ��> a device ID, so deciding if two files are on same file system or
>�� �� ��> not is doable by checking this field for the source file and
>�� �� ��> destination file (if it exists) or directory - modulo the fact
>�� �� ��> that you'd have to care of symbolic links with lstat.
>
>�� �� ��I meant from within the image.�� Also, while this is fine for
>�� �� ��Linux, and probably for MacOS, what about Windows?
>
> Ah, so it's more a Squeak/Pharo VM problem than a unix problem ;) You
> are right, there is a call to stat() in unix file plugin
>
> https://github.com/OpenSmalltalk/opensmalltalk-vm/blob/Cog/platforms/unix/plugins/FilePlugin/sqUnixFile.c
>
> but the device info is not passed back to the image...�� Too bad!

But it should be a straightforward extension.�� I think I'll ask on
vm-dev if anyone objects to me adding this extension.

Thanks for pointing this out!

Cheers,
Alistair

> As for windows, it's not a problem, there is a rename function that
> would move files across devices (but not directories!) See rename() on
> msdn https://msdn.microsoft.com/en-us/library/zw5t957f.aspx