Clojurians Log v2

how to (prn ...) to stderr in babashka script?

This should work?

(binding [*out* *err*] (prn {:a "1" :b 2}))

Thank you. I've tried System/err before - and that did not work %) `*err*` binding is ok.

@maxp Not sure what your problem with System/err was, but this works as well:

user=> (binding [*out* (io/writer System/err)] (println :err))
:err

wow ... 🤯

Happy birthday @borkdude 🙂 🎉

Thanks :)

Happy Birthday 🎉 🎂

Thanks @jayzawrotny and thanks for your blog post gift!

Happy birthday! :babashka:

happy birthday! 🎂

Happy Birthday @borkdude have a good one. 🎂 🎉

Omg Happy Borkthday!

May the babushkas shower you with gifts that spark kondo-esque joy. Hope you carve a big chunk of happiness that's sci-entifically incalculable.

I missed this blog post when it came out almost a year ago: Deploy babashka script to AWS Lambda by @dainius.jocas https://www.jocas.lt/blog/post/babashka-aws-lambda/

@borkdude as you mentioned in the thread, this is way easier now that Lambda supports Docker images

layers were always a weird thing, clearly their (AWS) way of doing things

Happy birthday! May your borktitude continue to flourish!

Actually, x-posting here since it’s relevant, and they even mention babashka https://clojurians.slack.com/archives/C03S1KBA2/p1612814934358300

In particular I like the idea of adding a reader macro to bb to make it extra easy to write a bash lines

@grazfather try:

user=> (require '[babashka.process :refer [$]])
nil
user=> ^{:inherit true} ($ ls -la)

cool

what is the ^ {} part?

$ is a fancy macro to make it look like you're writing some shell invocation, it's part of the babashka.process lib: https://github.com/babashka/babashka.process The ^{..} part controls what to do with the output of the process. E.g. when you want to have a string:

(-> ^{:out :string} ($ ls -la) deref :out)

it's clojure metadata so you don't have to provide options inside the $ expression. the normal functional invocation would look like:

(-> (process ["ls" "-la"] {:out :string}) deref :out)

The $ macro also supports interpolation:

(let [dir "src"] (-> ^{:out :string} ($ ls -la ~dir) deref :out))

awesome