i can see the implicit in intellij
The cats change is well explained here https://github.com/typelevel/cats/releases/tag/v2.2.0
no need no more to import the 3 amigos, interface, type class instances, and the syntax
works starting from 2.2.0
@keynmol Not sure to follow
oh gosh
Sorry
:P
Ok this is a sign that i need to take a break stop hacking and come back to all of this later. Either way. Thank you so much for the help and guidance. Really made some progress in term of understanding what’s what, and what to expect from Amm itself vs the IDE i am using, how it can integrate and so on. Will def have a look into VS Code
Quick one before i jump into VsCode, is it already matching intellij or it is good enough, if we leave Ammonite issue aside ?
It depends on your definition :) Intellij has improved a lot recently, Metals is a bit more lightweight and more controllable, it matches build definition and compiler output better.
It doesn't have the vast array of IJ's refactorings, but its support for worksheets and ammonite is much better. I don't miss the refactorings because more complex ones constantly break something for me :)
It's certainly good enough - I use it full time on all of the code I write.
how do I get this to actually drop into a repl?
I've asked this question before, but I've never seen any responses to it. I've even asked @lihaoyi directly, but didn't hear from him either. Do any of you know how to pre-compile ammonite scripts such that they don't compile when first run? I'm trying to build a docker container that uses ammonite, but despite my various attempts, each time the container runs, all the scripts get compiled. Has anyone here used ammonite with docker?
*binary should be image
and just compile the scripts normally
I am interesting in developing additional filters used in AmmoniteFrontEnd. but I would like to have a better understanding of the mechanics. I would like to be able to run amm with remote debugging enabled.
like execute:
and then connect to it via IntelliJ
like execute:
JAVA_OPTS=-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=5005 && mill -i "amm[2.12.6].run"and then connect to it via IntelliJ
when I execute it this way, IntelliJ does "seem" to connect, but any debug points I set seem to not be respected.
Has anyone tried this before? or have any suggestions?
@yilinwei
Why don't you just create a binary using Graal? and just compile the scripts normally.
Thanks, but I'm not sure how, and I'm not I want to bite off GraalVM for this. I have working Docker images now, where the scripts are run via ammonite. The only issue is that when the container runs, it recompiles everything every time.
Hi All. I have my own library that I pull from my local artifact repository. This library has a function that calls upickle.default.read like so
java.lang.NoSuchMethodError: 'boolean upickle.default$.read$default$2()'
read[Seq[Map[String, String]]](str). When calling this function from inside of ammonite shell I get errorjava.lang.NoSuchMethodError: 'boolean upickle.default$.read$default$2()'
Does anyone know what could be the cause of that?
If I do the following import in the ammonite predef it fails as if the repository was never added. But if I wait until I'm in the amm shell and do the same import, it works
import $ivy.`org.datasyslab:geospark:1.3.2-SNAPSHOT`
Hi!
I'm trying to run this ammonite script and it doesn't see an instance of Concurrent for cats.effect.IO:
import coursierapi.MavenRepository
interp.repositories.update(
interp.repositories() ::: List(MavenRepository.of("~/.m2/local"))
)
import $ivy.`org.typelevel::cats-effect:2.3.1`, cats._, cats.effect.IO._, cats.effect._, cats.syntax.flatMap._, cats.syntax.functor._
import $ivy.`org.codehaus.janino:janino:3.1.2`
import $ivy.`org.jgrapht:jgrapht-core:1.5.0`
import $ivy.`ch.qos.logback:logback-classic:1.2.3`
import $ivy.`io.monix::monix:3.3.0`, monix.eval._, monix.execution.Scheduler.global
import $ivy.`com.typesafe.scala-logging::scala-logging:3.9.2`, com.typesafe.scalalogging._
import $ivy.`org.scalatest::scalatest:3.2.3`
import $ivy.`com.softwaremill.sttp.client3::core:3.0.0`, sttp.client3.SttpBackend
import $ivy.`com.softwaremill.sttp.client3::async-http-client-backend-cats:3.0.0`, sttp.client3.asynchttpclient.cats.AsyncHttpClientCatsBackend
import $ivy.`com.softwaremill.sttp.client3::circe:3.0.0`
import $ivy.`my.custom.local::artifact:1.0.0`, my.custom.local.artifact.alg._, my.custom.local.artifact.graph._, my.custom.local.artifact.input._
import cats.MonadError
import cats.effect.IO._
import cats.effect._
import cats.syntax.flatMap._
import cats.syntax.functor._
import com.typesafe.scalalogging.StrictLogging
import monix.eval._
import monix.execution.Scheduler.global
import my.custom.local.artifact.alg.CycleFinderImpl
import my.custom.local.artifact.flow._
import my.custom.local.artifact.graph.GraphBuilderImpl
import my.custom.local.artifact.input._
import sttp.client3.SttpBackend
import sttp.client3.asynchttpclient.cats.AsyncHttpClientCatsBackend
import scala.concurrent.ExecutionContext
import my.custom.local.artifact.MainCatsEffectIOImpl
MainCatsEffectIOImpl.run()Error:
java.lang.NullPointerException: Cannot invoke "cats.effect.IO.map(scala.Function1)" because "fa" is null
cats.effect.IOLowPriorityInstances$IOEffect.map(IO.scala:870)
cats.effect.IOLowPriorityInstances$IOEffect.map(IO.scala:863)
cats.Functor$Ops.map(Functor.scala:233)
cats.Functor$Ops.map$(Functor.scala:233)
cats.Functor$ToFunctorOps$$anon$4.map(Functor.scala:250)
my.custom.local.artifact.Main.<init>(Main.scala:29)
my.custom.local.artifact.MainCatsEffectIOImpl$.run(Main.scala:61)
ammonite.$sess.cmd24$.<clinit>(cmd24.sc:1)What do I do wrong?
That's the only two things in my experience that don't play nice with Ammonite in particular.
If that fails, I'd recommend minimising your implementation (to demonstrate a problem with CE, if there is one) and providing code in typelevel/cats-effect room.
It smells like somewhere in your code a
null is returned instead of IO[A].
In REPL mode it does
(I'm on Windows)
Also, FYI, I opened an ammonite-related issue in Metals scalameta/metals#2413