[asdf-devel] component-load-dependencies

[Faré]

On Wed, Jun 26, 2013 at 7:31 AM, Didier Verna <didier at lrde.epita.fr> wrote:
>
>   Hello,
>
> currently Declt advertises component dependencies by using
> COMPONENT-LOAD-DEPENDENCIES. This function however only returns a list
> of symbols naming the components.
>
> What would be the best way to retrieve a list of component objects
> instead ?
>
> Thanks!
>
Cher Didier,

what are you *really* trying to do?

Usually, one wants to get a list of components within a system.
Then, one typically uses required-components, e.g. like this (YMMV):
  (asdf:required-components (asdf:find-system :fare-utils)
:component-type '(not asdf:system) :keep-operation 'asdf:load-op
:keep-component 'asdf:source-file)

If you *really* want to walk the dependencies by yourself, use
asdf/plan:visit-dependencies.
There are also functions map-direct-dependencies,
reduce-direct-dependencies, direct-dependencies that you may want to
use instead. More often than not, it's a bad idea, though.
Most of the time, if you need to go under the hood, it is better to manually use
   traverse-action traverse-actions traverse-sub-actions
with your choice of plan, e.g. a sequential-plan or filtered-sequential-plan.

These are all ASDF 3 idioms. For these kinds of hacks, ASDF 2 is just
not supported.

—♯ƒ • François-René ÐVB Rideau •Reflection&Cybernethics• http://fare.tunes.org
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(The alternatives are not mutually exclusive.)
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