Re: [Perlappinst-devel] Re: App::Info

[David Wheeler]

On 6/4/02 1:28 PM, "David Wheeler" <address@hidden> claimed:

> Well, it makes sense to me to specialize parts of the API -- to break it up
> into specialized objects. I was just focusing on one part of what an
> installer needs to do -- try to find some relevant defaults by hunting
> around the file system. Another piece of the API can handle prompts and that
> sort of thing, but I hadn't got that far yet.
> 
> A thin shell is okay -- I think that smaller, specialized parts that work
> well together (in a fully OO fashion) is a desirable design goal.

Actually on reflection, I think what makes sense is to have a number of
flags on an object to determine its behavior. Right now, I'm issuing
warnings when data can't be found or collected. I need to add a flag that
will turn those into exceptions, or silence them altogether. It's just one
more step to have the flag (or a related flag) have a setting of prompt.
Actually, there should be multiple levels of prompt -- sometimes just to
find the one important file (e.g., pg_config for PostgreSQL), and sometimes
to confirm *every* attribute.

I'll think about how to implement this.

David

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