lihaoyi/Ammonite

Rock-solid shell scripting

Alexandre Archambault

@alexarchambault

@hmf Not 100% sure I understand your question, but repl.sess.frames.flatMap(_.classloader.inMemoryClasses) gives a list of class names / class byte code generated by the repl.

@ReiReiRei I'm afraid so, as it stands currently. 2.11 is getting quite old, 2.12 has been out for almost 3 years now(!)

ReiReiRei

@ReiReiRei

@alexarchambault but a lot of spark libs a based on only 2.11 spark ) hadoop distributions( cloudera hortonworks does not support spark based on scala 2.12 yet)

is it possible to say to old version of ammonite not to add sources to classpath ? something like this ?

interp.resolutionHooks += { fetch =>
  fetch.withClassifiers(fetch.classifiers.filter(_ != "sources"))
}

hmf

@hmf

@alexarchambault Thanks for the feedback. Don't think that will do - I am running a Mill script. I need to get hold of the .class file of an object (extends PostModifier) and place it on the classpath for dynamic loading by another library (MDoc). Is this doable?

trepidacious

@trepidacious

Is it possible to disable the "extra" printing in the ammonite repl (e.g. imports, defining variables etc.)? I'm using it from almond and it's great, but I don't need the extra output, just the results of println and explicitly sending plots etc. to the worksheet.

Crosson David

@dacr

Hi, any idea why I get java.lang.ClassNotFoundException: scala.jdk.CollectionConverters$ issues with amm-2.12-1.7.4 and not with amm-2.13-1.7.4, and not at all within the test (sbt +test) of my project which cross-compiles 2.11, 2.12, 2.13 (https://github.com/dacr/drools-scripting) using scala-collection-compat library.

10:46 $ amm-2.12-1.7.4 drools-hello-world.sc 
Compiling (synthetic)/ammonite/predef/interpBridge.sc
Compiling (synthetic)/ammonite/predef/sourceBridge.sc
Compiling (synthetic)/ammonite/predef/frontEndBridge.sc
Compiling (synthetic)/ammonite/predef/DefaultPredef.sc
Compiling /home/dcr/notes/scripts/drools-hello-world.sc
drools$minushello$minusworld$HelloTest:
Drools
ammonite.$file.drools$minushello$minusworld$HelloTest$ *** ABORTED ***
...
10:48 $ amm-2.13-1.7.4 drools-hello-world.sc 
Compiling (synthetic)/ammonite/predef/interpBridge.sc
Compiling (synthetic)/ammonite/predef/sourceBridge.sc
Compiling (synthetic)/ammonite/predef/frontEndBridge.sc
Compiling (synthetic)/ammonite/predef/DefaultPredef.sc
Compiling /home/dcr/notes/scripts/drools-hello-world.sc
drools$minushello$minusworld$HelloTest:
Drools
- should say hello

I'm not sure it is a bug, if it is I'll fill a dedicated issue, the executed code is the following : https://gist.github.com/dacr/6921d569fd33182da358d6a8e383aa0a :

import $ivy.`org.scalatest::scalatest:3.0.8`
import $ivy.`fr.janalyse::drools-scripting:1.0.1`

import org.scalatest._, org.scalatest.OptionValues._
import fr.janalyse.droolscripting._

object HelloTest extends FlatSpec with Matchers {
  "Drools" should "say hello" in {
    val drl =
      """package testdrools
        |rule "hello" when
        |then
        |  insert("HELLO WORLD");
        |end
        |""".stripMargin
    val engine = DroolsEngine(drl)
    engine.fireAllRules()
    engine.getObjects.headOption.value shouldBe "HELLO WORLD"
  }
}
HelloTest.execute()

May be because ammonite is using an old release of ("org.scala-lang.modules" %% "scala-collection-compat") "2.0.0" while the latest is "2.1.2" ?

Crosson David

@dacr

Yes I've just checked it and it was coming from this old release :)
Pull request sent. lihaoyi/Ammonite#1011

nsram

@nsram_twitter

Just started using Li Haoyi's work. Needed to load jars from a local folder due to limited internet access. The following worked.

@  val jarpath = pwd / 'dev / 'jar  // local folder with jars
@  ls! jarpath | interp.load.cp

Brian Maso

@bmaso

:thumbsup: That's pretty cool

nsram

@nsram_twitter

On ubuntu, I am not seeing the color syntax highlighting for error stack trace (its all red). Colors are working normally otherwise. Amm 1.7.1

Milan Satala

@msatala

Hi guys,
ammonite-sshd doesn't run predef when running inside docker container.
I'm running ammonite embedded in play server. When I start play via runProd and connect to ammonite via ssh I get this

Compiling /home/milan/dev/traceability/traceability/server/playserver/target/universal/stage/(console)
Setting front-end. // My println in predef
Welcome to the Ammonite Repl 1.7.4

However when I run the same play server inside alpine-java docker container I only get this:

Password: 
Welcome to the Ammonite Repl 1.7.4

Any ideas?

Glen Marchesani

@fizzy33

anyone know of a simple way to use ammonite as a server side scripting language ?

Olivier Mélois

@Baccata

@fizzy33 can you refine your question ? ammonite provides you with a way to access a repl over ssh, and you can can embed it in a server : http://ammonite.io/#RemoteREPL , but that might not be what you need

@msatala chances your docker container doesn't see your predef. It's likely a docker problem, not an ammonite problem.

Abhishek Srivastava

@abhishes_twitter

I am having a problem with ammonite with international characters. Try to copy and paste this string into ammonite (on macOS).
大学院小学高校入試高校受験
Now move the cursor to the beginning of the line and try to move the cursor to the end. you will see that the cursor gets stuck at the character 校. Even Cmd+E doesn't work and it doesn't take you to the end of the line.

This doesn't happen in Scala REPL or Bash. only in ammonite it gets stuck

Emmanuel Nhan

@enhan

Hi there, I am using sbt 1.3.2 and I try to use ammonite 1.7.4 with a commandAlias. It works, but the supershell feature of sbt makes it almost unusable. Is there a way to deactivate supershell for just one task ? I tried Test / useSuperShell := falsebut it did not work. Does someone has an alternative workaround than just calling sbt with --supershell=false ?

Abhishek Srivastava

@abhishes_twitter

I had the following two lines in my predef.sc

import coursier.MavenRepository
interp.repositories() ++= Seq(MavenRepository("https://repository.mulesoft.org/nexus/content/repositories/public/"))

These used to work fine. today I upgraded my ammonite to 1.7.4 and now its broken. Error

predef.sc:17: not found: value coursier
import coursier.MavenRepository

Abhishek Srivastava

@abhishes_twitter

OK. I was able to resolve the issue of MavenRepository. The updated code is like this

import coursierapi.MavenRepository
interp.repositories() ++= Seq(
        MavenRepository.of("https://repository.mulesoft.org/nexus/content/repositories/public/")
)

Now it works fine.

Zsolt Szilagyi

@esgott

@abhishes_twitter I have the same issue, but I also need authentication. Couldn't manage to make it work yet.

Natalia Tisseyre

@supperslonic

Is it possible to have 2 ScalaInterpreters in the single JVM process who share same classLoader? I ran into ClassCastException when trying to deserialize/serialize some instances created by a different classLoader: almond-sh/almond#452

Haifeng Li

@haifengl

I develop a small DSL in scala. It works in Scala's REPL. But in Ammonite, I get the following error:

@ val formula = "class" ~ 
cmd2.sc:1: value ~ is not a member of String
val formula = "class" ~
                      ^
Compilation Failed

All my classes and implicit conversation are already imported.

The same expression works in Scala REPL

scala> val formula = "class" ~
formula: smile.data.formula.FormulaBuilder = FormulaBuilder(Some(class),ListBuffer())

Haifeng Li

@haifengl

Never mind. I find the root cause. It is on my end.

phrmoy

@phrmoy

hello all, thanks for such a great package!

I am running into "org.apache.spark.sql.AnalysisException: Unable to generate an encoder for inner class ammonite.$sess.cmd29$Helper$SimpleTuple without access to the scope that this class was defined in.
Try moving this class out of its parent class.;" and google searches are not too helpful at the moment

can anyone help me get through this?

Just mapping values of a dataset to

case class SimpleTuple(id: Int, desc: String) {
    def >(other:SimpleTuple) = this.id > other.id
}

phrmoy

@phrmoy

So here's what I had to do to make this work

case class SimpleTuple4(id: Int, desc: String) {
    def >(other:SimpleTuple4) = this.id > other.id
}
org.apache.spark.sql.catalyst.encoders.OuterScopes.addOuterScope(this)
textFile.map(line => SimpleTuple4(line.split(" ").size,line)).reduce((a, b) => if (a > b) a else b)

all within the same cell

is this the current workaround? This is Spark 2.4.4

Sören Brunk

@sbrunk

@phrmoy yes, on Spark master this is included by default, but it seems it's not part of 2.4. See https://github.com/apache/spark/pull/23607/files#diff-28a2ffae3ceff1bd5646567163c3a00b

phrmoy

@phrmoy

Well, it's great to know that this will be included in Spark at some point. Thanks for sharing.

Li Haoyi

@lihaoyi

@/all Ammonite 1.8.0 is out http://ammonite.io/#1.8.0, with an OS-Lib upgrade

Diego E. Alonso Blas

@diesalbla

Good morning.
Is there a way of run an ammonite console in sbt, as an alternative to sbt console, that will load the files in the project?
I have tried writing a Main as suggested in https://ammonite.io/#Debugging, and running it with the run command inside sbt , but that did not work...

Emmanuel Nhan

@enhan

@diesalbla Use this :

libraryDependencies += {
  val version = scalaBinaryVersion.value match {
    case "2.10" => "1.0.3"
    case _ ⇒ "1.8.0"
  }
  "com.lihaoyi" % "ammonite" % version % "test" cross CrossVersion.full
}

sourceGenerators in Test += Def.task {
  val file = (sourceManaged in Test).value / "amm.scala"
  IO.write(file, """object amm extends App { ammonite.Main.main(args) }""")
  Seq(file)
}.taskValue

and if you want, add a shortcut :
addCommandAlias("repl", "test:runMain amm")

Diego E. Alonso Blas

@diesalbla

:eyeglasses:

Emmanuel Nhan

@enhan

@diesalbla by the way, it is in https://ammonite.io/#Ammonite-REPL section of the doc. Not under the "debugging" one.

Diego E. Alonso Blas

@diesalbla

@enhan Do you have an example of some project with the full SBT configured? I am afraid it is still failing me...

nderraugh-yw

@nderraugh-yw

Anyone familiar with importing from a secure private bintray? I've tried to follow various snippets I've found through Google, but can't make it go.

import coursier.core.Authentication, coursier.MavenRepository

interp.repositories() ++= Seq(MavenRepository(
      "https://some.bintray.com/maven"
      authentication = Some(Authentication("user", "pass"))
    ))

import $ivy.{
  `com.some:artifact_2.12:1.0.9-85`
}

gives me

Failed to resolve ivy dependencies:Error downloading com.some:artifact_2.12:1.0.9-85
  not found: /Users/nderraugh/.ivy2/local/com.some/artifact_2.12/1.0.9-85/ivys/ivy.xml
  not found: https://repo1.maven.org/maven2/com/some/artifact_2.12/1.0.9-85/artifact_2.12-1.0.9-85.pom

Dmitriy Kuzkin

@kuzkdmy

HI, may be somebody can assist

I have to call
git blame <file> | grep -n '^0{8} ' | cut -f1 -d:
This gives me line numbers of changed git files

https://stackoverflow.com/questions/8259851/using-git-diff-how-can-i-get-added-and-modified-lines-numbers/12179492

Can I somehow to execut this as a native command, it just hungs

Dmitriy Kuzkin

@kuzkdmy

I was able to make it works
https://alvinalexander.com/java/java-exec-system-command-pipeline-pipe

Jakub Dubovsky

@james64

Hey all! I am looking into ways how to replace bash by ammonite for writing general non-interactive scripts. From existance of Ammonite-Shell/Scripting chapter in documentation I understand that this usecase is supported. One of essentials here is an ability to invoke system binaries. I see we have this ability throuhg %, %% commands. I have installed ammonite per instructions on ammonite.io. In this setup percent commands are available only when amm is run interactivly. This is because predef code with necessary imports is pre-executed only for interactive sessions. Should I solve this by importing predef file by hand in all my future scripts? Or is this a bad idea for some reason. If on the other hand it is a good idea why predef is not pre-executed when scripts are run non-interactively as well? Or is there another .ammonite file which is run before scripts like this? I hope you see my confusion. And thanks for ammonite!

Michael Pilquist

@mpilquist

I know how to import libraries from an ammonite predef. How can I write a function/alias in an ammonite predef that imports libraries when function is run?

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