Re: Connecting to an Already Running Scheme REPL with org-babel

[Hunter Jozwiak <hunter.t.joz@gmail.com>]

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Ihor Radchenko <yantar92@posteo.net> writes:

> Hunter Jozwiak <hunter.t.joz@gmail.com> writes:
>
>>   Here is a patch that provides this functionality.
>
> Thank you!
>
>> Subject: [PATCH] org-mode: allow ob-scheme to accept a remote connection.
>>
>> * lisp/org/ob-scheme.el (org-babel-scheme-get-repl): introduce two
>> optional variables  host  and port. If there are not given, just run
>            ^^^^^^^^^ arguments
>
>> * lisp/org/ob-scheme (org-babel-scheme-execute-with-geiser,
>> org-babel-execute:scheme): take these  optional arguments into
>> account.
>
> ... and add two new optional arguments.
>
>> @@ -231,6 +235,8 @@ org-babel-execute:scheme
>>  		       geiser-scheme-implementation
>>  		       geiser-default-implementation
>>  		       (car geiser-active-implementations)))
>> +             (host (cdr (assq :host params)))
>> +             (port (cdr (assq :port params)))
>
> Please declare these new scheme-specific header argument in
> `org-babel-header-args:scheme'.
> See `org-babel-header-args:C' for an example.
> This is necessary for header argument completion to work.
>
Okay. Is there a way to tighten these inputs further? I have them set to
:any for the moment, but I wonder if there is a way to leverage the
values for `geiser-repl-default-host` and `geiser-repl-default-port`.
> Also, please document the new header argument in the ob-scheme
> documentation at
> https://orgmode.org/worg/org-contrib/babel/languages/ob-doc-scheme.html
> (you can submit a patch against
> https://git.sr.ht/~bzg/worg/tree/master/item/org-contrib/babel/languages/ob-doc-scheme.org )
>
Sure thing; I can do that after I finish this message.
>> -	       (and (not (string= session "none")) session)))) ; session
>> +	       (and (not (string= session "none")) session)  host port))) ; session
>
> This does not look right. Your change will disable session support
> completely when host and port are not provided.
Is there a way to test this and pinpoint the problem? I'm not familiar with using :sessions. Here is what I tested so far:
#+begin_example
#+begin_src scheme :scheme guile :host localhost :port 37146 :session *image*
  (use-modules (gnu)
               (guix)
               (guix gexp))
#+end_src

#+begin_src scheme :host localhost :port 37146 :session *image*
  (use-service-modules sound)
  (use-package-modules linux)
#+end_src

#+begin_src scheme :scheme guile :session *other*
  (use-srfis '(26)) 
#+end_src
#+end_example
This particular test gave me two REPLS. In the =*image*= REPL, I have access to the packages and services I would need to build part of the current project I am working on. The other REPL  gives me access to the `cut` and `cute` macros, and there isn't any plution between the two. Is there something else I'm missing here?


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