Clojurians Log v2

hello!, is there a guide on how to create a Pod? for example, it’s not clear to me why some pods are written in other languages and how to get one simple “hello-pod” program up and running with Babashka

@sdmoralesma The docs are available at https://github.com/babashka/pods A hello world pod would be nice to add to the docs. Feel free to create an issue about this. But there are already many clojure examples available, see.: https://github.com/babashka/pod-registry The buddy pod may be the simplest one to look at, since it's just data back and forth, and no real state

Some pods are written in other languages, because low level stuff like file system events are better done in golang or Rust. Some things simply didn't work with GraalVM, like sqlite, so that's why its in golang.

One dev tip: you can test the pod first on the JVM using the pod library and/or starting it via ["clojure" "-M" "-m" ...]

and if it works, then you can try compiling it to native

great!, thank you @borkdude

FYI created doc ticket: https://github.com/babashka/pods/issues/28

Being fairly new to Clojure and Babashka i was wondering how to manage external dependencies. For example if i want to use the environ package i now have this line in my script.

(babashka.deps/add-deps '{:deps {environ/environ {:mvn/version "1.2.0"}}})
(require '[environ.core :refer [env]])

Oh wow, environ works with bb :)

(require '[babashka.deps :as deps])

(babashka.deps/add-deps '{:deps {environ/environ {:mvn/version "1.2.0"}}})

(require '[environ.core :refer [env]])

(prn (:path env))

Not making fun of me 🙂 🙂

No, I am serious

haven't tried that lib with bb before :)

Just added it yesterday and sofar no problems..

@marco.pasopas So what you can do is add some namespaces to the classpath:

(babashka.deps/add-classpath "script")
(require 'script.deps)

There is no deps.edn or config.edn like file for bb yet. This is something I'm considering, but not there yet.

Thanks for the pointer! Will try it out..

This is the issue for it: https://github.com/babashka/babashka/issues/680

Next thing on my things i want to do with Babashka is unit testing 🙂

@marco.pasopas That is very well possible. https://book.babashka.org/#_running_tests

I am not sure if bb should use deps.edn itself (or maybe an alias :org.babashka) or that it should have a separate config file, or maybe even a __bb_setup__.clj script that's always run. Feel free to provide feedback in issue 680.

babashka_preloads.clj

It could be nice to have a .clj file for flexibility and not couple it with deps.edn too much. </hammock>

Environ added to projects.md: https://github.com/babashka/babashka/blob/master/doc/projects.md#environ

@marco.pasopas Btw, I don't think environ adds much for bb except that it reads all envs vars in a nice clojure map. Usually I just use (System/getenv "FOO_BAR")

@borkdude I agree! In my way to search for a lib that would enable me to set properties using envrionment variables and files i came across this one

aah

Just am trying to wrap my head around the clojure world and also babashka

🙂

yeah makes sense, if you are not so familiar with the Java APIs etc these libs can really help

@borkdude The code

(babashka.deps/add-classpath "script")
(require 'script.deps)

@marco.pasopas no, this is in (babashka.classpath/add-classpath "script")

sorry, I made a typo earlier

No problem 🙂 thought it was my mistake 🙂

Newbie question 🙂

but you can also do this in one go with add-deps: {:paths ["script"]} :deps ...}

it just takes the contents of a deps.edn file basically

If you scroll back to January 12th there is a discussion about this

So i have created a file called script/deps.clj

(ns deps)

(require '[babashka.deps :as deps])
(babashka.deps/add-deps '{:deps {environ/environ {:mvn/version "1.2.0"}}})
(require '[environ.core :refer [env]])

(babashka.classpath/add-classpath "script")
(require 'script.deps)

My problem i guess with not getting clojure that good:)

@marco.pasopas No worries. Does it help when you rename (ns deps) to (ns script.deps) ?

I will try locally

I am trying to execute it against a repl

ah sorry, I got it..., script is added to the classpath, so everything inside that should be referred as deps.foo without script

(require '[babashka.classpath :as cp])
(cp/add-classpath "script")
(require 'deps)

and (ns deps) should stay that way

you can also add the current dir "." to the classpath, and then you could require it as (require 'script.deps) with (ns script.deps)

^ @marco.pasopas

Gonna give a try! Thanksfor the help!!!!!!!