lihaoyi/Ammonite

Rock-solid shell scripting

Haifeng Li

@haifengl

Thanks. Can you please show the full code to do that? I don't get how to mutate it

Li Haoyi

@lihaoyi

you’ll have to figure it out

Jacob Taylor-Hindle

@GlassAndOneHalf

Hi all, I'm working to embed Ammonite in my application, and I'd like to be able to pass an object from the application to the Ammonite environment, e.g.

def my_entrypoint(foo: Foo) = {
  // Make `foo` accessible from the script.
  ammonite.Main(...).runScript(...)
}

I see the run method on Main would allow me to do this, but I want to be able to do this when running a script non-interactively - are there any methods that would allow me to achieve this?

Pascal Mengelt

@pme123

What happens if I have a Future in my Script? Will it run in the background forever?

Li Haoyi

@lihaoyi

@GlassAndOneHalf easiest thing to do is put it on a threadlocal

Jacob Taylor-Hindle

@GlassAndOneHalf

Hey @lihaoyi - how would I go about doing that? I can easily create a new threadlocal, but how does Ammonite pick that up?

Jacob Taylor-Hindle

@GlassAndOneHalf

I managed to get it working without a threadlocal with this:

ammoniteMain
  .instantiateRepl(IndexedSeq("foo" -> foo)).map { repl =>
    repl.interp.initializePredef()
    ammonite.main.Scripts.runScript(...)
}

The only issue is that it doesn't seem to pick up the @main annotations.

Jacob Taylor-Hindle

@GlassAndOneHalf

Ah - that was my bad. All is working now! Just need to fix some issues loading scripts under the resources folder.

Brian Maso

@bmaso

@GlassAndOneHalf +1. Wish I could bookmark that.

Ackerley Tng

@ackerleytng

@lihaoyi thanks so much for ammonite and great job!!

starting out in scala, was trying stuff out in ammonite - implicit conversions don't seem to take effect in the ammonite repl. is this expected behavior? (from Scala for the Impatient)

@ import scala.collection.JavaConverters.asScalaBufferConverter 
import scala.collection.JavaConverters.asScalaBufferConverter

@ val tmp: Buffer[String] = flavors.getNativesForFlavor(DataFlavor.imageFlavor) 
cmd44.sc:1: type mismatch;
 found   : java.util.List[String]
 required: scala.collection.mutable.Buffer[String]
val tmp: Buffer[String] = flavors.getNativesForFlavor(DataFlavor.imageFlavor)
                                                     ^
Compilation Failed
@

Li Haoyi

@lihaoyi

Hi Ackerley!

not sure about JavaConversions

Theyve been deprecated for a while, wouldn’t be surprised if they don’t work properly these days

Trond Bjerkestrand

@tbje

@ackerleytng try

flavors.getNativesForFlavor(DataFlavor.imageFlavor).asScala

Worked well in my ammonite

Li Haoyi

@lihaoyi

(need to import collections.JavaConverters._ before that)

Ackerley Tng

@ackerleytng

I see, got it! so it isn't really implicit anymore. Thanks!

Eric K Richardson

@ekrich

JavaConversions were implicit but they are deprecated.

Ackerley Tng

@ackerleytng

I see, thanks!

Matthew de Detrich

@mdedetrich

Is it possible to create a forked process with ammonite-ops?

Li Haoyi

@lihaoyi

you can spawn processes using os.proc().spawn. You cannot fork JVMs https://jukkaz.wordpress.com/2010/05/27/forking-a-jvm/

Matthew de Detrich

@mdedetrich

Thanks

Jonas Amundsen

@badeball

This might be a silly question, but can I import and use a file from a SBT project in a scala-script?

Jason Pickens

@steinybot

I’m trying to follow the steps to add Ammonite to an SBT project. Now when I run Test / compile it fails with:

[error] error while loading Object, Missing dependency 'object scala.native in compiler mirror', required by /Library/Java/JavaVirtualMachines/adoptopenjdk-8.jdk/Contents/Home/jre/lib/rt.jar(java/lang/Object.class)
[error] ## Exception when compiling 1 sources to /Users/jason/source/console-api/target/scala-2.13/test-classes
[error] scala.reflect.internal.MissingRequirementError: object scala in compiler mirror not found.
…

This is with sbt 1.3.5 and Scala 2.13.1

Henry Story

@bblfish

Hi @lihaoyi just wondering as your code uses a lot of the symbol notation from Scala2 what you make of its deprecation in Scala3. Did you find a good workaround?

Li Haoyi

@lihaoyi

we’ll just use strings instead

one more character to type is no big deal

we never made use of symbol specific stuff anyway

Henry Story

@bblfish

Adam Fraser

@adamgfraser

Hi. Is there a recommended best practice for avoiding having scripts exit an interactive Ammonite session if they call system.exit? I'm thinking of just checking sys.env for Ammonite being the main class and not doing the exit in that case but wanted to see if there was another recommended way.

Rey

@reyman

hi,

I'm trying to load scala-js-d3v4 lib using ammonite script of @lihaoyi without success,

interp.repositories() ++= Seq(coursierapi.IvyRepository.of("https://jitpack.io"))
import $ivy.`com.github.fdietze:scala-js-d3v4:master-SNAPSHOT`

I have a failed resolving error ... someone use d3 with scala js here ?

Rey

@reyman

i obtain something like that

something like that :

org.xml.sax.SAXParseException; lineNumber: 42; columnNumber: 3; Le type d'élément "meta" doit se terminer par la balise de fin correspondante "</meta>". (Le type d'élément "meta" doit se terminer par la balise
 de fin correspondante "</meta>".)

jvr-ks

@jvr-ks

I switched from MINGW64 to WSL / Debian buster on my Win10 laptop today.

Welcome to the Ammonite Repl 1.9.8
(Scala 2.13.1 Java 11.0.5)
If you like Ammonite, please support our development at www.patreon.com/lihaoyi

Great!

One drawback:

I am used to use TABs to format code,

but Ammonite Repl uses TABs for autocompletion in interactive mode.

How can I turn this off ore replace with another key (Shift+Tab?) and use Tabs as Tabs,
besides replacing all TABs with blanks :-) ?

Rey

@reyman

hi @lihaoyi , i'm trying to add jitpack dependency to use scala js D3 with ammonite, i have a org.xml.sax error, i post an issue here, fdietze/scala-js-d3v4#41 , but dev doesn't know why lib is not downloaded by ammonite

Colin Williams

@KE7CFN_twitter

@bblfish I thought I would fiddle with banana-rdf but following https://github.com/banana-rdf/banana-rdf/wiki/Scripting-with-Ammonite and getting import errors.

amm
Loading...
Welcome to the Ammonite Repl 2.0.1
(Scala 2.12.10 Java 1.8.0_232)
If you like Ammonite, please support our development at www.patreon.com/lihaoyi
colin-banana-rdf@ import coursier.core.Authentication, coursier.MavenRepository 
cmd0.sc:1: not found: value coursier
import coursier.core.Authentication, coursier.MavenRepository
       ^
cmd0.sc:1: not found: value coursier
import coursier.core.Authentication, coursier.MavenRepository
                                     ^
Compilation Failed

colin-banana-rdf@  

colin-banana-rdf@ interp.repositories() ++= Seq(MavenRepository(
                    "http://bblfish.net/work/repo/snapshots/"
                    )) 
cmd0.sc:1: value ++= is not a member of List[coursierapi.Repository]
  Expression does not convert to assignment because:
    not found: value MavenRepository
    expansion: {
  <synthetic> val ev$1: ammonite.util.Ref[List[coursierapi.Repository]] = ammonite.interp.api.InterpBridge.value.repositories;
  ev$1.update(ev$1.apply().++(Seq(<MavenRepository: error>("http://bblfish.net/work/repo/snapshots/"))))
}
val res0 = interp.repositories() ++= Seq(MavenRepository(
                                 ^
Compilation Failed

Colin Williams

@KE7CFN_twitter

Maybe https://github.com/lihaoyi/Ammonite/issues/1003#issuecomment-543179658 will fix

Colin Williams

@KE7CFN_twitter

That worked. I will update the wiki...

Colin Williams

@KE7CFN_twitter

Is there any set -x when running scala scripts? I found lihaoyi/Ammonite#421 but assume it's related to the REPL, and not scala scripts.

Kyle Prifogle

@kyprifog

Can anyone help me figure out how to structure an import statement for this in ammonite? https://github.com/MrPowers/spark-daria I assume you use $ivy, but that library doesn't seem to be there.

Ben Iofel

@benwaffle

interp.repositories() ++= Seq(coursierapi.MavenRepository.of("http://dl.bintray.com/spark-packages/maven"))

@

import $ivy.`mrpowers:spark-daria:0.35.0-s_2.12`

Kyle Prifogle

@kyprifog

Thank you! the top part was what I was missing

Kyle Prifogle

@kyprifog

Hmm, this doesn't work

Kyle Prifogle

@kyprifog

This worked for me:

import coursier._

val mavenRepo = coursier.MavenRepository("http://dl.bintray.com/spark-packages/maven")
interp.repositories.update(
  interp.repositories() ::: List(mavenRepo)
)

Ben Iofel

@benwaffle

is your version of ammonite out of date?

Kyle Prifogle

@kyprifog

version 2.0.1, from what I read on the issues on github the issue was that my version of ammonite was too up to date

that particular syntax had changed apparently

gavinbaumanis

@gavinbaumanis

I am trying the Machine Learning examples on the website,
When I run;

val tokenData = requests.get(tokenDataUrl)

I get the following - then a whole lot of "binary" data and the shell crashes.

Exception in thread "main" java.lang.IllegalArgumentException: Unknown ansi-escape

Here is the stack trace;

at fansi.ErrorMode$Throw$.handle(Fansi.scala:419)
        at fansi.ErrorMode$Throw$.handle(Fansi.scala:407)
        at fansi.Str$.apply(Fansi.scala:272)
        at fansi.Str$.implicitApply(Fansi.scala:227)
        at ammonite.repl.Repl$.$anonfun$showException$1(Repl.scala:304)
        at scala.collection.immutable.List.map(List.scala:219)
        at scala.collection.immutable.List.map(List.scala:79)
        at ammonite.repl.Repl$.showException(Repl.scala:300)
        at ammonite.repl.Repl$.handleRes(Repl.scala:258)
        at ammonite.repl.Repl.loop$1(Repl.scala:215)
        at ammonite.repl.Repl.run(Repl.scala:223)
        at ammonite.Main.$anonfun$run$1(Main.scala:224)
        at scala.Option.getOrElse(Option.scala:201)
        at ammonite.Main.run(Main.scala:212)
        at ammonite.MainRunner.$anonfun$runRepl$1(Main.scala:408)
        at ammonite.MainRunner.watchLoop(Main.scala:389)
        at ammonite.MainRunner.runRepl(Main.scala:408)
        at ammonite.Main$.main0(Main.scala:307)
        at ammonite.Main$.main(Main.scala:271)
        at ammonite.Main.main(Main.scala)

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