FYI clj-rss works with babashka, I made a PR with an example and deps.edn https://github.com/yogthos/clj-rss/pull/25 . So you can generate RSS feeds from directories using babashka scripts

https://twitter.com/epic_castle/status/1507735766272598020

quick question, is there any info somewhere on how to process posix signals? SIGTERM in particular?

@roguas In Java you can use use these classes for it:

(:import [sun.misc Signal]
           [sun.misc SignalHandler])

We could add more stuff to that namespace and/or expose the sun.misc classes -- but sun.* classes are actually considered implementation detail.

We could maybe add babashka.signal/on-sigterm or so

This probably needs some experimentation

gonna take a look, thanks... supporting SIGTERM seems pretty crucial to me, if you are running scripts as docker containers, this is de facto way to communicate from host os 🙂

I'm ok with exposing these classes, that seems to be the lowest level of friction since the internet has Clojure examples on how to do this stuff

and although they are implementation details, I think it's unlikely they'll ever deprecate these since unless the offer a more "supported" way

i would love not to go back to python, having discovered this missing piece 🙂

let me make a branch so we can test stuff

big thanks, really impressed 🙂 I think its really a must have if you plan on running inside docker/container, SIGTERM is part of normal lifecycle

so far nobody asked for it, although babashka has seen quite some docker usage

but I believe you :)

well, depends on the workload, but if you have a workload that has some cleanup (say close a connection to db) its good to do that, I am working on agent that would startup another job and this job has capability to susped and dump partial results... most people also do kill -9 to later stackoverflow why the thing broke down/left garbage 🙂

if you give me some info on how to test the build, I am more than willing 🙂

Added it, and seems to work:

$ ./bb -e '(sun.misc.Signal/handle (sun.misc.Signal. "INT") (reify sun.misc.SignalHandler (handle [_ _] (prn :hello)))) (Thread/sleep 10000)'
^C:hello
^C:hello
^C:hello
^C:hello
^C:hello

Maybe an obvious question, but is sun.misc.Signal actually exposed in the module graph?