Re: [cclan-list] Add CLEAN-OP to ASDF?

[Robert G. <rpg...@si...>]

Christophe Rhodes wrote:
> Robert Goldman <rpg...@si...> writes:
> 
>> E.M. Baringer's Arnesi library has an ASDF clean-op in its src/asdf.lisp
>> file (thanks to fe[nl]ix on #lisp for the pointer).  Is there any reason
>> this operation could not be imported into the core ASDF distribution?
>> Cleaning out old FASLs seems like a very nice thing to have.
> 
> The usual argument against is that clean-op is philosophically wrong:
> the output-files of which operation should it clean?
> 
> I'm no longer sure that that argument holds water: the operation
> itself can know, by virtue of referring to the operation it's cleaning
> up for.  Something like
> 
> (defclass clean-op (operation)
>   ((clean-for :initarg :clean-for))
>   (:default-initargs :clean-for (make-instance 'load-op)))
> 
> Now (asdf:oos 'asdf:clean-op ...) will do the right thing, and those
> with special requirements can additionally do things like
>   (asdf:oos 'asdf:clean-op ... :clean-for (make-instance 'test-op))
> or similar.
> 
> This probably isn't going to be a straightforward import of Marco's
> code (though maybe it is, I don't know); on the other hand, if this
> functionality were available in this form I would be happy.
> 
> Best,
> 
> Christophe
> 

This sounds like the right approach, and I will see if I can figure out
how to modify Marco's code accordingly.  One question, though --- why
should the :clean-for operation default to load-op instead of
compile-op?  That was the one that seemed like the obvious choice to me.


Best,
r