[SAGA-RG] Some more questions

[Ceriel Jacobs]

'Andre Merzky' wrote:
> Hi, 
> 
> Quoting [Hartmut Kaiser] (Oct 30 2007):
>>  
>> Andre,
>>  
>>>> 2. What is supposed to happen when the source is a directory, the
>>>>    recursive flag is set, and the target is a file? I assume remove
>>>>    target, create target dir, and copy? And if overwrite flag is
>>>>    not set, throw AlreadyExists?
>>> Uhm, tough one!  Unix shell would say:
>>>
>>>   koks merzky /tmp : mkdir a
>>>   koks merzky /tmp : touch a/a b
>>>   koks merzky /tmp : cp -Rf a b
>>>   cp: cannot overwrite non-directory `b' with directory `a'
>>>
>>> We don't have an exception for this.  So, yes, I would concur 
>>> with your interpretation: the target file should get removed, 
>>> and a target dir with the same name should get created.
>> Deleting a file in the case the user wanted to delete a directory is bad,
>> IMHO. I'ld suggest to throw an AlreadyExists exeption.
> 
> It would be nice to get another opinion to break the tie (I
> myself am not sure which way is better).

OK, I thought about this now. Here is My opinion:
I agree with Hartmut: throw an AlreadyExists exception, with a
clarifying message, like "cannot overwrite non-directory `b' with directory `a'".
I agree that deleting the file is a bad idea. If the user wants this,
he/she should remove the file first.

Ceriel