Re: [ANN] guile-mqtt-0.2.0 released

["Aleix Conchillo Flaqué" <aconchillo@gmail.com>]

Hi!

guile-mqtt 0.2.1 now available in macOS via Guile Homebrew
(https://github.com/aconchillo/homebrew-guile):

$ brew tap aconchillo/guile   (only needed once)
$ brew install guile-mqtt

On Tue, Nov 12, 2024 at 1:17 AM Mikael Djurfeldt <mikael@djurfeldt.com> wrote:
>
> Guile MQTT provides bindings for the libmosquitto MQTT client
> library. The bindings are written in
> [GOOPS](https://www.gnu.org/software/guile/manual/html_node/GOOPS.html)
> and rely on lower-level bindings created by NYACC directly and
> automatically from mosquitto.h.
>
> Changes compared to v0.1.0:
>
> * All functionality of Chicken Scheme mosquitto bindings now
>   implemented and documented.
>
> * Distribute own copy of (... foreign cdata). NYACC is now not
>   required if building from a tar archive (as opposed to building from
>   a git repository clone).
>
> * Support make in separate build directory.
>
> * Bugfix: unsubscribe now works.
>
> The bindings align with GOOPS style, which means short method
> names. (The specialization is done through the arguments.)
>
> The user can extend the client class by inheritance.
>
> Guile MQTT is free software and is released under the LGPL v3 license; the
> full source distribution is available through
>
> * a tarball:
>
> https://github.com/mdjurfeldt/guile-mqtt/releases/download/v0.2.0/guile-mqtt-0.2.0.tar.gz
>
> * the git repository:
>      https://github.com/mdjurfeldt/guile-mqtt
>
> Guile MQTT maturity is beta level.
>
> The following example, as well as the Guile libmosquitto bindings
> themselves,
> are inspired by the [Chicken Scheme mosquitto
> bindings](http://wiki.call-cc.org/eggref/5/mosquitto) by Dmitrii
> Kosenkov.
>
> ```
> (use-modules (mosquitto client))
>
> (let ((client (make-client #:on-connect
>                           (lambda (client err)
>                             (if (not (eq? err MOSQ_ERR_SUCCESS))
>                                 (abort err)
>                                 (display "Yay, we are connected!"))))))
>   (set! (disconnect-callback client)
>         (lambda (client err)
>           (if (not (eq? err MOSQ_ERR_SUCCESS))
>             (display "Unexpected disconnect..."))))
>
>   (set! (message-callback client)
>         (lambda (cl msg)
>           (display (string->append "Topic: " (topic msg)
>                                    "Payload:" payload msg))
>           (publish client "topic2" "message received, thanks!")))
>   (connect client "localhost" #:username "mqtt-admin" #:password "mypass")
>   (subscribe client "topic1")
>   (loop-forever client))
> ```
>
> See further examples under the directory [examples](
> https://github.com/mdjurfeldt/guile-mqqt/tree/main/examples).