If I understand what you mean, you should be able to do something like this:

(require
 '[babashka.fs :as fs]
 '[clojure.string :as str])

(defn my-filter [path]
  (str/starts-with? (fs/file-name %) "t"))

(defn my-parser [path]
  (slurp (fs/file path))

(->> (fs/glob "somedir" "**")
     (remove fs/directory?)
     (filter my-filter)
     (map my-parser)

looks like it, I was trying node interop and running into some Promise weirdness that I didn't understand

Yeah, I'd use the builtin Babashka and Clojure stuff first and see if I can avoid interop altogether.

If you know you only want files match a certain pattern, https://babashka.org/fs/codox/babashka.fs.html#var-glob can do a lot more than just return all of the files. You can do (fs/glob "somedir" "**.clj") do get all of the Clojure files, for example.

agreed, for some reason I concluded that those wouldn't work, not sure why, I was too tired probably

trying this require form kills the nbb nrepl server with no value specified for babashka.fs

for key [babashka.fs as fs

Not sure what that even means

Ok, so I wasn't entirely wrong, babashka.fs is only for the JVM, doesn't work on node

omg, didn't know that. 😭

Is there any reason you want to use nbb instead of regular bb?

well, node is already installed

bb doesn't need anything installed. You can just download the static binary and use it.

colleagues are mostly jsers, so they would get a milder heart attack

😄

You're on Windows, right?

yes

downloading binaries on corporate laptop is "installing" them

Gotcha.

That said, probably will try it, because your code looks simpler than anything I could do in node I think

I'm not a Node person myself, but I'm sure other people in the channel can get you over the current hurdle with nbb if that's preferable. 🙂

we are in the nbb channel 😄

Indeed.

anyway, thanks again, will try it soon

I didn't realise that bb and nbb are so different.

me neither, and the stuff I see should work, I just don't understand why I see a promise come out of another promise, when those should be unwrapped at once. Need more time to debug, but even better if I can avoid the whole mess

I dislike promises with a passion

Promesa makes things a lot nicer: https://github.com/babashka/nbb#promesa

You can use node fs readFileSync

finding files recursively is the biggest complication

I switched for a bb repl but this require form still doesn't work, now it says lib names inside prefix lists must not contain periods

For Node.js you can use any Node library for globbing. E.g.: https://github.com/isaacs/node-glob

For your bb problem, paste your ns form here, there's probably a syntax error or so

Added the glob example here: https://github.com/babashka/nbb/blob/main/examples/glob/example.cljs

I think I used the node based glob before and didn't have this feature? But will check again

oh, example, can't argue with that

awesome as always @U04V15CAJ

I was using the same code that @U054AT6KT typed in this thread at the very beginning. Could be that I messed up something else by not fully starting from scratch. But going back to nbb out of curiousity now:)

You probably didn't use this example literally but transformed it into:

(ns foo (:require
 '[babashka.fs :as fs]
 '[clojure.string :as str]))

thanks, that's what happened exactly

will read up on this 😐

So it's either:

(require '[foo])

The reason is that ns is a macro and require is a function

so beautiful when things work

I just wish I wouldn't be so confused all the time:)

And loose out on all the fun and weird stuff? 😂