Clojurians Log v2

To complete the example :-): (data or {}).get("domain", {}).get("name", "bar") That being said these days I end up with a get-in function in python code.

Also note that pmap will very likely run more than 2+cpus tasks at the same time due to chunking: https://github.com/jumarko/clojure-experiments/blob/master/src/clojure_experiments/experiments.clj#L556-L576

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Is https://github.com/MastodonC/kixi.stats the most used statistics library for Clojure nowadays?

I am trying to figure out what states a certain state of a state machine can transition to. I am now dealing with data that looks like this:

{:com.fulcrologic.fulcro.ui-state-machines/handler #unknown function (env)
 {return com.fulcrologic.fulcro.ui_state_machines.activate
  (env, new cljs.core.Keyword ("state", "button1", "state/button1", 936328262))}}

it seems you are dealing with an opaque function object and not data?

Do you know of any documentation on this I can use?

documentation on what exactly?

I think I get what you meant now. Thanks for this. I probably need to call the function to figure out the return value

What is the idiomatic way these days to implement a CLI in a project? I'm new to deps.edn - does it allow specifying a default main namespace, like the equivalent of :main in project.clj? I'm envisioning that a user could git-clone the repo and invoke some minimal clojure command to pass control to main method of intended namespace (which actually implements the CLI using tools.cli and provides usage info when invoked with no args, as per usual).

see -M (main) or -X (arbitrary fn) here: https://clojure.org/guides/deps_and_cli#_using_a_main https://clojure.org/reference/deps_and_cli

it looks a bit like javascript?? if you have a javascript function, you can call .toString on it to get it's source and parse that string? is that what you mean?

Thanks. I'm still working my way through all that documentation. So in my example a user would have to know to invoke

clojure -M -m cli

clojure -M

I suppose it's a moot question, once the project were packaged up as a proper release, presumably a jar file with a start script.

in an alias: :main-opts ["-m" "my.ns.with.main" "arg1" "arg2"]

then: clj -M:thealias

@scottbale If your CLI only uses clojure.core and tools.cli and some other commonly used libs, you could also consider babashka, since that is built with this usage in mind.

Another option (for regular JVM Clojure) is just writing a script which you can invoke directly, not with a main. Like here: https://gist.github.com/borkdude/e6f0b12f9352f3375e5f3277d2aba6c9

But typically (with deps.edn) you would write an alias with pre-defined main args like explained above.

Thanks to you both, this is very helpful and exactly what I was wondering about: how is this typically done.

Don't think so

Hum, actually it does seem popular. This one is as well: https://generateme.github.io/fastmath/fastmath.stats.html

Can't say which one is most popular though. I'd say both are production ready if that's what you're worried about

I guess it depends who the user you are targeting is

If a Clojure dev, then use an alias. Then they don't even need to git clone or anything

They just add the alias to their deps.edn user config, and now they can use it

I think the difference is fastmath uses Java implementations under the hood, while kick.stat is fully implemented in Clojure using transducers.

I've also built a CLI with https://github.com/l3nz/cli-matic (features on top of tools.cli ) and I had a good experience.

docopt is also an option: https://github.com/nubank/docopt.clj (also works in babashka as a lib)