Hi Guixers,
I want to create a service that listens on an MQTT topic for messages
(i.e. "pull docker") and runs corresponding commands on the local machine.
For that to work I need guile-mqtt but I do to not understand how module
visibility works in Guix.
Coming from other languages I would assume that imports would check
files next to the starting point and then bubble up a predefined PATH
until it finds some module or fails.
However that is not what I am seeing or at least the shell command is
not working the way I am expecting to.
What am I missing?
guix shell guile-mqtt -- guile -c "(use-modules (mosquitto client))
(display \"Module loaded successfully\n\")"
Backtrace:
In ice-9/boot-9.scm:
1752:10 13 (with-exception-handler _ _ #:unwind? _ # _)
In unknown file:
12 (apply-smob/0 #<thunk 7f7ab0123300>)
In ice-9/boot-9.scm:
724:2 11 (call-with-prompt ("prompt") #<procedure 7f7ab0130320 …> …)
In ice-9/eval.scm:
619:8 10 (_ #(#(#<directory (guile-user) 7f7ab0126c80>)))
In ice-9/command-line.scm:
185:19 9 (_ #<input: string 7f7ab0120850>)
In unknown file:
8 (eval (use-modules (mosquitto client)) #<directory (gui…>)
In ice-9/eval.scm:
721:20 7 (primitive-eval (use-modules (mosquitto client)))
In ice-9/psyntax.scm:
1229:36 6 (expand-top-sequence (#<syntax:unknown file:1:0 (use-…>) …)
1221:19 5 (parse _ (("placeholder" placeholder)) ((top) #(# # …)) …)
259:10 4 (parse _ (("placeholder" placeholder)) (()) _ c&e (eval) …)
In ice-9/boot-9.scm:
3935:20 3 (process-use-modules _)
222:17 2 (map1 (((mosquitto client))))
3936:31 1 (_ ((mosquitto client)))
3330:6 0 (resolve-interface (mosquitto client) #:select _ #:hide …)
ice-9/boot-9.scm:3330:6: In procedure resolve-interface:
no code for module (mosquitto client)
