Does not warn on rename

[timmc]

If I create a fresh Davros grain and rename shuttle.jpg to pluto.jpg, pluto.jpg is overwritten. This matches the behavior of Unix's mv command, but should probably issue a warning/confirmation dialog.

(This is with experimental version 0.31.1.)

[mnutt]

That's a good call-out, I'll add a warning if the rename will potentially overwrite an existing file.

[ocdtrekkie]

Not tested, but can I assume it may do the same if you move pluto.jpg into a folder where a pluto.jpg already exists?

[timmc]

Yes, same result.

[timmc]

I wonder if it would also be worth doing a second check during the actual file move/rename operation, like so:

1. Grain loaded
2. User attempts to rename aaa.jpg to xxx.jpg (where xxx.jpg does not exist)
3. [At some point since UI load, an xxx.jpg is uploaded]
4. Second check happens just before the mv operation
5. "Error: xxx.jpg already exists"

[mnutt]

The WebDAV spec handles MOVE conflicts by passing a header Overwrite: T or Overwrite: F. I think perhaps the right thing to do is to attempt to do the MOVE with Overwrite: F and catch the error, prompting to overwrite or cancel.

This works fine on single-file moves or renames, but is going to be tricky on files where many files may end up with conflicts...