Question from the old school: source config DSL

[Faré]

—♯ƒ • François-René ÐVB Rideau •Reflection&Cybernethics• http://fare.tunes.org


On Mon, Aug 24, 2015 at 3:55 PM, Robert Goldman <rpgoldman at sift.net> wrote:
> On 8/24/15 Aug 24 -2:14 PM, Faré wrote:
>> On Mon, Aug 24, 2015 at 2:48 PM, Robert Goldman <rpgoldman at sift.net> wrote:
>>> I have always used ASDF:*CENTRAL-REGISTRY*, with some local code that
>>> grovels over source trees.
>>>
>>> I'd love to stop maintaining the tree groveler, and move to the DSL, but
>>> I have never understood how you debug the DSL when ASDF fails to find
>>> your system.
>>>
>>> With *CENTRAL-REGISTRY* you pretty much pprint the variable, eyeball it,
>>> and it's usually pretty easy to see whether a directory is missing.
>>>
>>> But what do you do if you use the DSL?  The last time I tried to use the
>>> DSL, I found myself using the inspector to grovel over internal-to-ASDF
>>> hash tables, which wasn't very pleasant.
>>>
>>> Is there a "debugger API" to the new source configuration search?  E.g.,
>>> can we dump the hash-table in a human readable (sorted, formatted way?)?
>>> can we trace something to see how ASDF is populating the hash table?
>>> *)
>> You can
>> (alexandria:hash-table-alist asdf/source-registry::*source-registry*)
>>
>> or for a higher-level view, you can
>> (asdf/source-registry:flatten-source-registry)
>
> Exactly the answer I was looking for!
>
> I will add this to the function index in the ASDF manual.
>
> Maybe add a FAQ that's something like "what do I do if ASDF cannot find
> a system I think it should?"
>
For those whose asdf can't locate alexandria, here is another form
that you might find more useful, to list all registered .asd file
sorted by system name:
(sort (loop for p being the hash-values of asdf::*source-registry*
collect p) 'string< :key 'pathname-name)

PS: if you have questions like these, that aren't answered by the
manual, the right thing to do is to ask on the mailing-list, not to
throw hands in frustration.

—♯ƒ • François-René ÐVB Rideau •Reflection&Cybernethics• http://fare.tunes.org
The secret of change is to focus all of your energy, not on fighting the old,
but on building the new. — Dan Millman