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Scala Scripting

Home Page: http://ammonite.io

License: MIT License

Scala 98.76% Java 0.85% SuperCollider 0.01% Shell 0.38%

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ammonite's Issues

mechanism to see method signature of completed function

@lihaoyi tks for the awesome ammonite-repl! I am very excited to use it

There is one feature that I do miss. In the regular scala repl, i can hit after a complete method name to see a method signature(s)

for example

scala> foo.replace<TAB>
   def replace(Char, Char): String   def replace(CharSequence, CharSequence): String

it would be sweet to get the same kind of behavior in ammonite-repl

Running code in object-initializers makes things slow

Apparently code directly inside an object Foo{ ... } block doesn't get JITed, and the commands that you enter into Ammonite all are run that way. This seems to result in a 10x slowdown in the rare-ish case you're doing intensive work directly in that block.

@ (() => {val start = System.currentTimeMillis(); var i = 1L; while(i < 1000000000L) i += (i % 2) + 1; System.currentTimeMillis() - start})()
res13: Long = 1065L
@ {val start = System.currentTimeMillis(); var i = 1L; while(i < 1000000000L) i += (i % 2) + 1; System.currentTimeMillis() - start}
res14: Long = 11464L

A solution would be to lift all var/val/lazy val/<expr> statements automatically into (() => ...)() in the Preprocessor.

Read doesn't close it's input stream

Eventually this makes the process die with a too-many-open-files error

read! leaks file descriptors

Opening lots of files seems to cause IOException: Too many open files. We're probably not closing things properly.

AWScala examples make REPL misbehave

Example: https://github.com/seratch/AWScala#amazon-elastic-compute-cloud-amazon-ec2

Loading Ammonite Repl...
@ load.ivy("com.github.seratch" %% "awscala" % "0.3.+")
:: loading settings :: url = jar:file:/Users/haoyi/.ivy2/cache/org.apache.ivy/ivy/jars/ivy-2.4.0.jar!/org/apache/ivy/core/settings/ivysettings.xml
:: resolving dependencies :: com.github.seratch#awscala_2.11-caller;working
    confs: [default]
    found com.github.seratch#awscala_2.11;0.3.2 in central
    [0.3.2] com.github.seratch#awscala_2.11;0.3.+
    found org.scala-lang#scala-library;2.11.2 in central
    [2.11.2] org.scala-lang#scala-library;2.11.2
    found com.amazonaws#aws-java-sdk;1.8.11 in central
    found com.amazonaws#aws-java-sdk-core;1.8.11 in central
    found commons-logging#commons-logging;1.1.1 in central
    found org.apache.httpcomponents#httpclient;4.2 in central
    found org.apache.httpcomponents#httpcore;4.2 in central
    found commons-codec#commons-codec;1.6 in central
    found com.fasterxml.jackson.core#jackson-core;2.1.1 in central
    found com.fasterxml.jackson.core#jackson-databind;2.1.1 in central
    found com.fasterxml.jackson.core#jackson-annotations;2.1.1 in central
    found joda-time#joda-time;2.5 in central
    found org.joda#joda-convert;1.7 in central
    found com.decodified#scala-ssh_2.11;0.7.0 in central
    found net.schmizz#sshj;0.10.0 in central
    found org.slf4j#slf4j-api;1.7.7 in central
    found org.bouncycastle#bcpkix-jdk15on;1.50 in central
    found org.bouncycastle#bcprov-jdk15on;1.50 in central
    found org.bouncycastle#bcprov-jdk16;1.46 in central
    found com.jcraft#jzlib;1.1.3 in central
res0: Unit = ()
@ awscala.Region
res1: awscala.Region.type = awscala.Region$@4d662a90
@ awscala.Region
Compilation Failed
Main.scala:25: inferred type arguments [awscala.Region.type] do not conform to method shellPPrint's type parameter bounds [T]
          def $main() = {Iterator(ReplBridge.shell.shellPPrint(res2, "res2")) ++ Iterator(" = ") ++ ammonite.pprint.PPrint(res2)}
                                                   ^
Main.scala:25: type mismatch;
 found   : awscala.Region.type
 required: T
          def $main() = {Iterator(ReplBridge.shell.shellPPrint(res2, "res2")) ++ Iterator(" = ") ++ ammonite.pprint.PPrint(res2)}
                                                               ^
Main.scala:25: inferred type arguments [awscala.Region.type] do not conform to method apply's type parameter bounds [T]
          def $main() = {Iterator(ReplBridge.shell.shellPPrint(res2, "res2")) ++ Iterator(" = ") ++ ammonite.pprint.PPrint(res2)}
                                                                                                                    ^
Main.scala:25: type mismatch;
 found   : awscala.Region.type
 required: T
          def $main() = {Iterator(ReplBridge.shell.shellPPrint(res2, "res2")) ++ Iterator(" = ") ++ ammonite.pprint.PPrint(res2)}
                                                                                                                           ^
@

Why is the alphabet in that order - is it because of that song?

A typical completion presentation. The docs say "you get the same autocomplete-anywhere support that you get in a modern IDE." I haven't checked lately but I bet the modern IDE alphabetizes.

##                 asInstanceOf       isInstanceOf       toString           hashCode           equals
!=                 ==                 size               isEmpty            elemAt             foreach
getClass           foreachSlice       viewOps            mapIndices         foreachIntIndex    foreachIndex
containsIndex      lastNth            lastIndex          lastIntIndex       nths               indices
isPositive         isZero             intSize            longSize           byShow             byRef
byEquals           partition          span               splitAt            join               directlySlice
linearlySlice      build              force              withFilter         takeWhile          takeRight
take               map                flatMap            dropWhile          dropRight          drop
collect            ++                 :|                 |:                 xs                 toEach
foldFrom           fold               foldr              foldl              foldWithIndex      groupBy
clusterBy          dropIndex          takeToFirst        ofClass            zipView            zipIndex
zip                withSize           tail               sliceWhile         slice              mapZip
mapWithIndex       mapApply           labelOp            init               grep               gatherClass
gather             filterNot          filter             sortBy             sortDistinct       sorted
min                max                zfoldr             zfoldl             zfirst             toRefs
tabular            nonEmpty           mk_s               mkString           last               indicesWhere
indexWhere         head               forallTrue         forall             first              find
exists             count              foreachReverse     foreachWithIndex   synchronized       ne
eq                 wait               notifyAll          notify             any_s              try_s
matchOr            requiring          optionally         same               fix                id_##
id_==              |>                 sideEffect         isOr               doto               reflect
isNull             toRef              castTo             isClass            shortPackage       shortClass
x                  __shown_rep

Documentation is extremely hyped

"It is much more featureful than the default REPL ... Ammonite-REPL supports many more features than the default REPL"

I propose that delivering feature parity - and working at all - should take place before making grandiose claims of this kind. I might be unusually conservative in that regard. Here's some completion from the scala repl:

scala> List(1)
res0: List[Int] = List(1)

scala> res0.map<tab>
map   mapConserve

scala> res0.map<tab> // it elaborates
   def map[B, That](f: A => B)(implicit bf: generic.CanBuildFrom[List[A],B,That]): That

scala> java.lang.String.valueOf<tab>
                                             def valueOf(Boolean): String   def valueOf(Int): String
def valueOf(Any): String                     def valueOf(Char): String      def valueOf(Long): String
def valueOf(Array[Char]): String             def valueOf(Double): String
def valueOf(Array[Char], Int, Int): String   def valueOf(Float): String

Ammonite offers the method name, that's it.

The signature the repl gives for map is wrong (it's a List[Int] so the A should have been substituted to Int) so there's an opportunity for you to actually improve on it. You only hurt your credibility with the glib claims, and frankly there's plenty of room for humility when you only got imports sort of working a few hours ago.

Even your chosen example output has issues. It suggests "scala.concurrent.Future$class" and then acts like it has never heard of it.

@ scala.concurrent.Future<tab>
Future             FutureTaskRunner

printing infix types

@ val f: Int -> String = 5 -> ""
f: psp.std.->[psp.std.Int,psp.std.String] = 5 ->
@

Scala choose a pathologically awful way to print the type Int -> String. That issue goes back forever. You could print them sensibly, with the operator infix.

initial commands

It will be convenient for me to import a bunch of stuff in the ammonite REPL, but "initialCommand in console" is ignored inside the ammonite REPL. It would help to have this work or some replacement.

Tab Completion for Constructores, Imports

These cases do the wrong thing

@ new St<tab>
@ import java.<tab>Display all 660 possibilities? (y or n)

Would be nice if they worked

Implicit auto-complete doesn't seem to work on arrays

@ Array(1,2,3)
res6: scala.Array[Int] = Array(1, 2, 3)
@ res6.
!=             ##             ==             apply          asInstanceOf   clone
eq             equals         getClass       hashCode       isInstanceOf   length
ne             notify         notifyAll      synchronized   toString       update
wait

We should get .reduce and all the other extension-methods as well

java.lang.StackOverflowError in REPL

I definitely wanted to try Ammonite REPL out, it looks really promising. I wanted to play a little bit with Scalaz as well:

@ load.ivy("org.scalaz" %% "scalaz-core" % "7.1.1")
@ import scalaz._
@ import Scalaz._

After that, whatever expression I write, throws a bunch of errors:

java.lang.StackOverflowError
scala.tools.nsc.typechecker.Contexts$Context.collect$1(Contexts.scala:818)
scala.tools.nsc.typechecker.Contexts$Context.collect$1(Contexts.scala:824)
scala.tools.nsc.typechecker.Contexts$Context.collect$1(Contexts.scala:824)
...
Something unexpected went wrong =(

Convert String => Path implicit conversions into type-classes instead

Otherwise we pollute the String# and Symbol# namespace with all sorts of things we don't want in general, which interferes with pollution provided by others (e.g. uTest also provides a String#- operator).

This will mean you'll have to write relative paths as rel/'path/'segments rather than 'path/'segments, but that's maybe OK

Implement (p1: Path).startsWith(p2: Path)

This would be much nicer than doing (p2 - p1).ups > 0, which is what you have to do now

repl shell on android

inspiration: http://www.reddit.com/r/scala/comments/2w83yk/scala_repl_shell_on_android/

Add extractor for `/` to extract `RelPath`

no ammonite-core in maven repository

I was trying to get this to work, but it seems there is an ammonite jar in maven, but no ammonite-core, and depending on the ammonite jar doesn't seem to work,

nothing echoed on multiple import

This is with deafdc7, commit of 45 minutes ago.

@ import psp._, std._, api._, StdShow._, StdEq._

@

As opposed to

@ import psp._
import psp._
@

Good news is this works in initial test:

@ implicit def someShow[A](implicit z: Show[A]) = ammonite.pprint.PPrinter[A]((t, c) => Iterator(z show c))
defined function someShow
@ Direct(1, 2, 3)
res6: psp.api.Direct[Int] = [ 1, 2, 3 ]
@

Going through history does not erase previously displayed text

@ val x = 9
x: Int = 9
@ 
class A {

  val xxxx = 0

  def foo = xxxx
}
defined class A
@ //Now hitting up twice
class A {

  val xxxx = 0

  def foo = xxxx
} val x = 9

The `:power` command doesn't work

Power REPL mode is very handy for compiler writers (small number of folks) but also for macro writers that want to poke around.

We would need some equivalent or preferably direct port of :power command.

Could Path and RelPath be case classes?

Would give us hashcode/equality for free, and other nice things

Unknown Resolver spam is super annoying

Seems to pop up the first time you download things from the internet. We're probably doing something wrong but I don't know what

Loading Ammonite Repl...
@ load.ivy("com.github.seratch" %% "awscala" % "0.5.2")
:: loading settings :: url = jar:file:/Users/haoyi/.ivy2/cache/org.apache.ivy/ivy/jars/ivy-2.4.0.jar!/org/apache/ivy/core/settings/ivysettings.xml
:: resolving dependencies :: com.github.seratch#awscala_2.11-caller;working
    confs: [default]
    found com.github.seratch#awscala_2.11;0.5.2 in central
    found org.scala-lang#scala-library;2.11.6 in central
    [2.11.6] org.scala-lang#scala-library;2.11.6
    found com.amazonaws#aws-java-sdk-iam;1.9.31 in central
    found com.amazonaws#aws-java-sdk-core;1.9.31 in central
    found commons-logging#commons-logging;1.1.3 in central
    found org.apache.httpcomponents#httpclient;4.3.4 in central
    found org.apache.httpcomponents#httpcore;4.3.2 in central
    found commons-codec#commons-codec;1.6 in central
    found com.fasterxml.jackson.core#jackson-databind;2.3.2 in central
    found com.fasterxml.jackson.core#jackson-annotations;2.3.0 in central
    found com.fasterxml.jackson.core#jackson-core;2.3.2 in central
    found com.amazonaws#aws-java-sdk-sts;1.9.31 in central
    found com.amazonaws#aws-java-sdk-ec2;1.9.31 in central
    found com.amazonaws#aws-java-sdk-s3;1.9.31 in central
    found com.amazonaws#aws-java-sdk-kms;1.9.31 in central
    found com.amazonaws#aws-java-sdk-sqs;1.9.31 in central
    found com.amazonaws#aws-java-sdk-emr;1.9.31 in central
    found com.amazonaws#aws-java-sdk-redshift;1.9.31 in central
    found com.amazonaws#aws-java-sdk-dynamodb;1.9.31 in central
    found com.amazonaws#aws-java-sdk-simpledb;1.9.31 in central
    found joda-time#joda-time;2.7 in central
    found org.joda#joda-convert;1.7 in central
    found com.decodified#scala-ssh_2.11;0.7.0 in central
    found net.schmizz#sshj;0.10.0 in central
    found org.slf4j#slf4j-api;1.7.7 in central
    found org.bouncycastle#bcpkix-jdk15on;1.50 in central
    found org.bouncycastle#bcprov-jdk15on;1.50 in central
    found org.bouncycastle#bcprov-jdk16;1.46 in central
    found com.jcraft#jzlib;1.1.3 in central
downloading http://repo1.maven.org/maven2/com/github/seratch/awscala_2.11/0.5.2/awscala_2.11-0.5.2.jar ...
    [SUCCESSFUL ] com.github.seratch#awscala_2.11;0.5.2!awscala_2.11.jar (579ms)
downloading http://repo1.maven.org/maven2/com/github/seratch/awscala_2.11/0.5.2/awscala_2.11-0.5.2-sources.jar ...
    [SUCCESSFUL ] com.github.seratch#awscala_2.11;0.5.2!awscala_2.11.jar(source) (103ms)
downloading http://repo1.maven.org/maven2/com/github/seratch/awscala_2.11/0.5.2/awscala_2.11-0.5.2-javadoc.jar ...
    [SUCCESSFUL ] com.github.seratch#awscala_2.11;0.5.2!awscala_2.11.jar(javadoc) (525ms)
downloading http://repo1.maven.org/maven2/com/amazonaws/aws-java-sdk-iam/1.9.31/aws-java-sdk-iam-1.9.31.jar ...
    [SUCCESSFUL ] com.amazonaws#aws-java-sdk-iam;1.9.31!aws-java-sdk-iam.jar (267ms)
downloading http://repo1.maven.org/maven2/com/amazonaws/aws-java-sdk-sts/1.9.31/aws-java-sdk-sts-1.9.31.jar ...
    [SUCCESSFUL ] com.amazonaws#aws-java-sdk-sts;1.9.31!aws-java-sdk-sts.jar (35ms)
downloading http://repo1.maven.org/maven2/com/amazonaws/aws-java-sdk-ec2/1.9.31/aws-java-sdk-ec2-1.9.31.jar ...
    [SUCCESSFUL ] com.amazonaws#aws-java-sdk-ec2;1.9.31!aws-java-sdk-ec2.jar (509ms)
downloading http://repo1.maven.org/maven2/com/amazonaws/aws-java-sdk-s3/1.9.31/aws-java-sdk-s3-1.9.31.jar ...
    [SUCCESSFUL ] com.amazonaws#aws-java-sdk-s3;1.9.31!aws-java-sdk-s3.jar (205ms)
downloading http://repo1.maven.org/maven2/com/amazonaws/aws-java-sdk-sqs/1.9.31/aws-java-sdk-sqs-1.9.31.jar ...
    [SUCCESSFUL ] com.amazonaws#aws-java-sdk-sqs;1.9.31!aws-java-sdk-sqs.jar (367ms)
downloading http://repo1.maven.org/maven2/com/amazonaws/aws-java-sdk-emr/1.9.31/aws-java-sdk-emr-1.9.31.jar ...
    [SUCCESSFUL ] com.amazonaws#aws-java-sdk-emr;1.9.31!aws-java-sdk-emr.jar (359ms)
downloading http://repo1.maven.org/maven2/com/amazonaws/aws-java-sdk-redshift/1.9.31/aws-java-sdk-redshift-1.9.31.jar ...
    [SUCCESSFUL ] com.amazonaws#aws-java-sdk-redshift;1.9.31!aws-java-sdk-redshift.jar (426ms)
downloading http://repo1.maven.org/maven2/com/amazonaws/aws-java-sdk-dynamodb/1.9.31/aws-java-sdk-dynamodb-1.9.31.jar ...
    [SUCCESSFUL ] com.amazonaws#aws-java-sdk-dynamodb;1.9.31!aws-java-sdk-dynamodb.jar (328ms)
downloading http://repo1.maven.org/maven2/com/amazonaws/aws-java-sdk-simpledb/1.9.31/aws-java-sdk-simpledb-1.9.31.jar ...
    [SUCCESSFUL ] com.amazonaws#aws-java-sdk-simpledb;1.9.31!aws-java-sdk-simpledb.jar (52ms)
downloading http://repo1.maven.org/maven2/com/amazonaws/aws-java-sdk-core/1.9.31/aws-java-sdk-core-1.9.31.jar ...
    [SUCCESSFUL ] com.amazonaws#aws-java-sdk-core;1.9.31!aws-java-sdk-core.jar (140ms)
downloading http://repo1.maven.org/maven2/com/amazonaws/aws-java-sdk-kms/1.9.31/aws-java-sdk-kms-1.9.31.jar ...
    [SUCCESSFUL ] com.amazonaws#aws-java-sdk-kms;1.9.31!aws-java-sdk-kms.jar (75ms)

:: problems summary ::
:::: ERRORS
    unknown resolver sbt-chain

    unknown resolver null

    unknown resolver sbt-chain

    unknown resolver null

    unknown resolver sbt-chain

    unknown resolver null

    unknown resolver sbt-chain

    unknown resolver null

    unknown resolver sbt-chain

    unknown resolver null

    unknown resolver sbt-chain

    unknown resolver null

    unknown resolver sbt-chain

    unknown resolver null

    unknown resolver sbt-chain

    unknown resolver null


:: USE VERBOSE OR DEBUG MESSAGE LEVEL FOR MORE DETAILS
res0: Unit = ()
@

Exception when trying to use Ammonite REPL

// build.sbt

name := "test-repl"

version := "1.0"

scalaVersion := "2.11.5"

libraryDependencies += "com.lihaoyi" %% "ammonite" % "0.1.6"

libraryDependencies += "com.lihaoyi" %% "ammonite-repl" % "0.1.6"

initialCommands in console := "ammonite.repl.Repl.main(null)"

#Command Line

jon$ sbt console
[info] Loading project definition from /Users/jon/code/test-repl/project
[info] Set current project to test-repl (in build file:/Users/jon/code/test-repl/)
[info] Starting scala interpreter...
[info] 
java.lang.AbstractMethodError
  at scala.tools.nsc.backend.JavaPlatform$class.$init$(JavaPlatform.scala:22)
  at ammonite.repl.interp.Compiler$$anon$1$$anon$6.<init>(Compiler.scala:70)
  at ammonite.repl.interp.Compiler$$anon$1.platform$lzycompute(Compiler.scala:70)
  at ammonite.repl.interp.Compiler$$anon$1.platform(Compiler.scala:70)
  at scala.tools.nsc.interactive.Global$$anon$8.<init>(Global.scala:401)
  at scala.tools.nsc.interactive.Global.loaders$lzycompute(Global.scala:399)
  at scala.tools.nsc.interactive.Global.loaders(Global.scala:399)
  at scala.tools.nsc.Global$GlobalMirror.rootLoader(Global.scala:65)
  at scala.reflect.internal.Mirrors$Roots$RootClass.<init>(Mirrors.scala:307)
  at scala.reflect.internal.Mirrors$Roots.RootClass$lzycompute(Mirrors.scala:321)
  at scala.reflect.internal.Mirrors$Roots.RootClass(Mirrors.scala:321)
  at scala.reflect.internal.Mirrors$Roots$EmptyPackageClass.<init>(Mirrors.scala:330)
  at scala.reflect.internal.Mirrors$Roots.EmptyPackageClass$lzycompute(Mirrors.scala:336)
  at scala.reflect.internal.Mirrors$Roots.EmptyPackageClass(Mirrors.scala:336)
  at scala.reflect.internal.Mirrors$Roots.EmptyPackageClass(Mirrors.scala:276)
  at scala.reflect.internal.Mirrors$RootsBase.init(Mirrors.scala:250)
  at scala.tools.nsc.Global.rootMirror$lzycompute(Global.scala:74)
  at scala.tools.nsc.Global.rootMirror(Global.scala:72)
  at scala.tools.nsc.Global.rootMirror(Global.scala:40)
  at scala.reflect.internal.Definitions$DefinitionsClass.ObjectClass$lzycompute(Definitions.scala:257)
  at scala.reflect.internal.Definitions$DefinitionsClass.ObjectClass(Definitions.scala:257)
  at scala.reflect.internal.Definitions$DefinitionsClass.init(Definitions.scala:1391)
  at scala.tools.nsc.Global$Run.<init>(Global.scala:1216)
  at scala.tools.nsc.interactive.Global$TyperRun.<init>(Global.scala:1208)
  at scala.tools.nsc.interactive.Global.newTyperRun(Global.scala:1231)
  at scala.tools.nsc.interactive.Global.<init>(Global.scala:297)
  at ammonite.repl.interp.Compiler$$anon$1.<init>(Compiler.scala:68)
  at ammonite.repl.interp.Compiler.<init>(Compiler.scala:68)
  at ammonite.repl.interp.Interpreter.init(Interpreter.scala:23)
  at ammonite.repl.interp.Interpreter.<init>(Interpreter.scala:55)
  at ammonite.repl.Repl.<init>(Repl.scala:11)
  at ammonite.repl.Repl$.main(Repl.scala:73)
  ... 39 elided
Welcome to Scala version 2.11.5 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_25).
Type in expressions to have them evaluated.
Type :help for more information.

scala>

Bug using sbt run script (using cs command) scalas

Hi,

I try to use Ammonite with conscript cs command tool (https://github.com/n8han/conscript) to run scala script as SBT manual say ( http://www.scala-sbt.org/0.13/docs/Combined+Pages.html )

#!/usr/bin/env scalas

/***
scalaVersion := "2.11.5"

resolvers += Resolver.url("Sonatype OSS Snapshots",url("https://oss.sonatype.org/content/repositories/snapshots"))(Resolver.ivyStylePatterns)

libraryDependencies += "com.lihaoyi" %% "ammonite" % "0.1.4"
*/

import ammonite.all._

val wd = processWorkingDir

ls! wd

I have this error :

[info] Loading global plugins from /home/srey/.sbt/0.13/plugins
[info] Set current project to root-68794879dd0af3f5dec3 (in build file:/home/srey/.conscript/boot/68794879dd0af3f5dec3/)
[error] (run-main-0) java.lang.NoSuchMethodError: java.nio.file.Files.list(Ljava/nio/file/Path;)Ljava/util/stream/Stream;
java.lang.NoSuchMethodError: java.nio.file.Files.list(Ljava/nio/file/Path;)Ljava/util/stream/Stream;
    at ammonite.ops.ls$.apply(Ops.scala:173)
    at ammonite.ops.ls$.apply(Ops.scala:170)
    at ammonite.ops.Op1$class.$bang(Ops.scala:79)
    at ammonite.ops.ls$.$bang(Ops.scala:170)
    at convert_svg$$anon$1.<init>(convert_svg.scala:15)
    at convert_svg$.main(convert_svg.scala:2)
    at convert_svg.main(convert_svg.scala)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
[trace] Stack trace suppressed: run last compile:run for the full output.
java.lang.RuntimeException: Nonzero exit code: 1
    at scala.sys.package$.error(package.scala:27)
[trace] Stack trace suppressed: run last compile:run for the full output.
[error] (compile:run) Nonzero exit code: 1

Crash on SI-5421 example

@ class A {def t: Int = {println("getter"); -282}; def t_=(p: Int) { println("setter") }; def m(v: String) = new A}
defined class A
@ val a = new A
a: cmd19.A = cmd19$A@4641e3dd
@ a m "txt" t = 18; println("x")
java.util.NoSuchElementException: Either.left.value on Right
    scala.util.Either$LeftProjection.get(Either.scala:289)
    ammonite.repl.interp.Preprocessor$$anon$2.apply(Preprocessor.scala:91)
    ammonite.repl.interp.Interpreter$$anonfun$processLine$2.apply(Interpreter.scala:36)
    ammonite.repl.interp.Interpreter$$anonfun$processLine$2.apply(Interpreter.scala:32)
    ammonite.repl.Catching.flatMap(Util.scala:73)
    ammonite.repl.interp.Interpreter.processLine(Interpreter.scala:32)
    ammonite.repl.Repl$$anonfun$action$1$$anonfun$apply$4.apply(Repl.scala:44)
    ammonite.repl.Repl$$anonfun$action$1$$anonfun$apply$4.apply(Repl.scala:43)
    ammonite.repl.frontend.Scoped$$anonfun$flatMap$1.apply(Signaller.scala:43)
    ammonite.repl.frontend.Signaller.apply(Signaller.scala:28)
    ammonite.repl.frontend.Scoped$class.flatMap(Signaller.scala:43)
    ammonite.repl.frontend.Signaller.flatMap(Signaller.scala:10)
    ammonite.repl.Repl$$anonfun$action$1.apply(Repl.scala:43)
    ammonite.repl.Repl$$anonfun$action$1.apply(Repl.scala:42)
    ammonite.repl.Res$Success.flatMap(Util.scala:22)
    ammonite.repl.Repl.action(Repl.scala:42)
    ammonite.repl.Repl.loop$1(Repl.scala:53)
    ammonite.repl.Repl.run(Repl.scala:56)
    ammonite.repl.Repl$.main(Repl.scala:80)
    $line1.$read$$iw$$iw$.<init>(<console>:8)
    $line1.$read$$iw$$iw$.<clinit>(<console>)
    $line1.$eval$.$print$lzycompute(<console>:7)
    $line1.$eval$.$print(<console>:6)
    $line1.$eval.$print(<console>)
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    java.lang.reflect.Method.invoke(Method.java:483)
    scala.tools.nsc.interpreter.IMain$ReadEvalPrint.call(IMain.scala:755)
    scala.tools.nsc.interpreter.IMain$Request.loadAndRun(IMain.scala:1002)
    scala.tools.nsc.interpreter.IMain$WrappedRequest$$anonfun$loadAndRunReq$1.apply(IMain.scala:609)
    scala.tools.nsc.interpreter.IMain$WrappedRequest$$anonfun$loadAndRunReq$1.apply(IMain.scala:608)
    scala.reflect.internal.util.ScalaClassLoader$class.asContext(ScalaClassLoader.scala:31)
    scala.reflect.internal.util.AbstractFileClassLoader.asContext(AbstractFileClassLoader.scala:19)
    scala.tools.nsc.interpreter.IMain$WrappedRequest.loadAndRunReq(IMain.scala:608)
    scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:540)
    scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:536)
    xsbt.ConsoleInterface$$anon$2.createInterpreter(ConsoleInterface.scala:54)
    scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply$mcZ$sp(ILoop.scala:852)
    scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply(ILoop.scala:850)
    scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply(ILoop.scala:850)
    scala.reflect.internal.util.ScalaClassLoader$.savingContextLoader(ScalaClassLoader.scala:97)
    scala.tools.nsc.interpreter.ILoop.process(ILoop.scala:850)
    scala.tools.nsc.interpreter.ILoop.main(ILoop.scala:872)
    xsbt.ConsoleInterface.run(ConsoleInterface.scala:62)
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    java.lang.reflect.Method.invoke(Method.java:483)
    sbt.compiler.AnalyzingCompiler.call(AnalyzingCompiler.scala:101)
    sbt.compiler.AnalyzingCompiler.console(AnalyzingCompiler.scala:76)
    sbt.Console.sbt$Console$$console0$1(Console.scala:22)
    sbt.Console$$anonfun$apply$2$$anonfun$apply$1.apply$mcV$sp(Console.scala:23)
    sbt.Console$$anonfun$apply$2$$anonfun$apply$1.apply(Console.scala:23)
    sbt.Console$$anonfun$apply$2$$anonfun$apply$1.apply(Console.scala:23)
    sbt.Logger$$anon$4.apply(Logger.scala:85)
    sbt.TrapExit$App.run(TrapExit.scala:248)
    java.lang.Thread.run(Thread.java:745)
Something unexpected went wrong =(

Doesn't work on Windows

When I run Ammonite on Windows, I got this exception:

Caused by: java.lang.IllegalArgumentException: requirement failed: Absolute Paths must start with /
    at scala.Predef$.require(Predef.scala:219)
    at ammonite.ops.Path$.apply(Path.scala:202)
    at ammonite.Bundle$class.$init$(Bundles.scala:37)
    at ammonite.all$.<init>(Bundles.scala:11)
    at ammonite.all$.<clinit>(Bundles.scala)

Mainly because of this

val home = Path(System.getProperty("user.home"))

System.getProperty("user.home") returns something like c:\Users\pocorall in Windows.

-Yno-imports

Here's what the scala repl does if you start it with -Yno-imports:

scala -Yno-imports
Welcome to Scala version 2.11.5 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_40).
Type in expressions to have them evaluated.
Type :help for more information.

scala> <console>:6: error: not found: type Any
  def set(x: Any) = value = x.asInstanceOf[scala.tools.nsc.interpreter.IMain]
             ^

It flounders even harder in sbt. There's no way to fix it without hacking the repl.

This leaves me with hundreds and hundreds of identifiers in scope in the psp-std repl which I don't want.

If you can get me to a repl where I only have my own identifiers I would undoubtedly abandon the scala repl. It would be a start to expose Settings somehow, as right now I see no way at it. If you're advertising "null" as the argument to main clearly you're not getting a lot of mileage out of the arguments. How about

ammonite.repl.Repl.main(Array("-Yno-predef", "-Yno-imports"))

Speaking of too many identifiers,

Loading Ammonite Repl...
@ <tab> Display all 678 possibilities? (y or n)

Does that really seem like an improvement to you? There's a reason the scala repl doesn't blast every identifier it has ever seen at you in response to a tab. But it's especially bad for me, because in my source base none of those 678 offerings should be in scope except the tiny subset which I have aliased into one of my packages.

Streams are realized

Try Stream.iterate(1)(_+1). The repl tries to fully realize the stream leading to infinite output. Not sure what's better, Scala REPL's no-info or ammonite's non-termination. Preview of just a few values would be nice.

PPrint derivation fails with nested class definitions

REPL session with Ammonite 0.2.7:

@ object ODef { case class Foo(i: Int, s: String) }
defined object ODef
@ ODef.Foo(2, "ba") // Nested in object, succeeds
res1: cmd0.ODef.Foo = Foo(2, "ba")

@ class CDef { case class Foo(i: Int, s: String) }
defined class CDef
@ object CDef extends CDef
defined object CDef
@ CDef.Foo(2, "ba") // Nested in class implemented by object, fails
Compilation Failed
Main.scala:26: could not find implicit value for evidence parameter of type ammonite.pprint.PPrint[cmd3.CDef.Foo]
          def $main() = {Iterator(ReplBridge.shell.shellPPrint(res4, "res4")) ++ Iterator(" = ") ++ ammonite.pprint.PPrint(res4)}
                                                                                                                          ^

This can be reproduced out of the Ammonite REPL, see https://gist.github.com/alexarchambault/90f79a160eca9a9e6932.

Note that contrary to Ammonite macros, shapeless Generic succeeds in these two cases (in the gist too).

Provide `grep`

We need an easier way to search through a big list of things fuzzily, e.g. using their toString or Repr, in cases where you don't really know what you want or what shape the data-structure is. Something like

implicit object GreppableString extends Greppable[String]
implicit object GreppableRegex extends Greppable[String]
def grep[T: Repr, V: Greppable](pat: V)(thing: T) = if (implicitly[Greppable[V]].grep(pat.PPrint(thing))) Some(thing) else None

XML literals are broken

It seems like a bug in RangePositions slicing them at the wrong spots. Probably not going to bother fixing.

@ <dependency>
      <groupId>com.lihaoyi</groupId>
      <artifactId>scalatags_2.11</artifactId>
      <version>0.4.5</version>
    </dependency>
Compilation Failed
Main.scala:10: in XML literal: name expected, but char '/' cannot start a name
  </dependency>)
   ^
Main.scala:10: in XML literal: '=' expected instead of '>'
  </dependency>)
              ^
Main.scala:10: in XML literal: ' or " delimited attribute value or '{' scala-expr '}' expected
  </dependency>)
               ^
Main.scala:11: in XML literal: '=' expected instead of '$'
          def $main() = {Iterator(ReplBridge.shell.shellPPrint(`res1`, "res1")) ++ Iterator(" = ") ++ ammonite.pprint.PPrint(`res1`)}
              ^
Main.scala:11: in XML literal: ' or " delimited attribute value or '{' scala-expr '}' expected
          def $main() = {Iterator(ReplBridge.shell.shellPPrint(`res1`, "res1")) ++ Iterator(" = ") ++ ammonite.pprint.PPrint(`res1`)}
               ^
Main.scala:11: in XML literal: whitespace expected
          def $main() = {Iterator(ReplBridge.shell.shellPPrint(`res1`, "res1")) ++ Iterator(" = ") ++ ammonite.pprint.PPrint(`res1`)}
                ^
Main.scala:11: in XML literal: '=' expected instead of '('
          def $main() = {Iterator(ReplBridge.shell.shellPPrint(`res1`, "res1")) ++ Iterator(" = ") ++ ammonite.pprint.PPrint(`res1`)}
                   ^
Main.scala:11: in XML literal: ' or " delimited attribute value or '{' scala-expr '}' expected
          def $main() = {Iterator(ReplBridge.shell.shellPPrint(`res1`, "res1")) ++ Iterator(" = ") ++ ammonite.pprint.PPrint(`res1`)}
                    ^
Main.scala:11: in XML literal: '>' expected instead of '='
          def $main() = {Iterator(ReplBridge.shell.shellPPrint(`res1`, "res1")) ++ Iterator(" = ") ++ ammonite.pprint.PPrint(`res1`)}
                      ^
Main.scala:12: in XML literal: in XML content, please use '}}' to express '}'
        }
        ^
Main.scala:13: ')' expected but eof found.

       ^

Add `home` path

Basically what ~ is for bash. It's probably going to be convenient for people doing system housekeeping

Stream evaluated on definition

e.g.
In standard scala repl
scala> val s = Stream.from(1)
s: scala.collection.immutable.Stream[Int] = Stream(1, ?)

In ammonite
@ val s = Stream.from(1)
s: scala.collection.immutable.Stream[Int] = Stream(
1,
2,
3,
4,
...

Rename `rel`

It collides with rel from Scalatags.

initial commands

It will be convenient for me to import a bunch of stuff in the ammonite REPL, but "initialCommand in console" is ignored inside the ammonite REPL

ls! gives no output

@ import ammonite.all._
import ammonite.all._
@
@ // Get the current working directory
@ val wd = processWorkingDir
wd: ammonite.ops.Path = root/'Users/'chris/'bin/"ammonite-scala-repl"
@
@ // Make a folder named "folder1"
@ mkdir! wd/'folder1
res2: Unit = ()
@
@ // List the current directory
@ ls! wd

@

Here is my build.sbt


libraryDependencies += "com.lihaoyi" %% "ammonite-repl" % "0.2.0" % "test"

initialCommands in console := "ammonite.repl.Repl.main(null)"

name := "Ammonite Repl"

scalaVersion := "2.11.4"

Command to run other executable

Hi,

I search in the doc, but i doesn't find a way to run extern command like this :

Search all svg class (that it's ok :) )

val results = (ls! wd |? (_.ext == "svg"))

Use command on each result from results list, something like this :

(0 until results).map{ r => inkscape -z -D --file=$r --export-pdf=$r --export-latex}

Best regards
Sr.

Bad parse causes crash

Similar to #51, but in this case it should fail, just more gracefully than it ends up failing

@ type x = {def t: Int = 1}
java.util.NoSuchElementException: Either.left.value on Right
    scala.util.Either$LeftProjection.get(Either.scala:289)
    ammonite.repl.interp.Preprocessor$$anon$2.apply(Preprocessor.scala:91)
    ammonite.repl.interp.Interpreter$$anonfun$processLine$2.apply(Interpreter.scala:36)
    ammonite.repl.interp.Interpreter$$anonfun$processLine$2.apply(Interpreter.scala:32)
    ammonite.repl.Catching.flatMap(Util.scala:73)
    ammonite.repl.interp.Interpreter.processLine(Interpreter.scala:32)
    ammonite.repl.Repl$$anonfun$action$1$$anonfun$apply$4.apply(Repl.scala:44)
    ammonite.repl.Repl$$anonfun$action$1$$anonfun$apply$4.apply(Repl.scala:43)
    ammonite.repl.frontend.Scoped$$anonfun$flatMap$1.apply(Signaller.scala:43)
    ammonite.repl.frontend.Signaller.apply(Signaller.scala:28)
    ammonite.repl.frontend.Scoped$class.flatMap(Signaller.scala:43)
    ammonite.repl.frontend.Signaller.flatMap(Signaller.scala:10)
    ammonite.repl.Repl$$anonfun$action$1.apply(Repl.scala:43)
    ammonite.repl.Repl$$anonfun$action$1.apply(Repl.scala:42)
    ammonite.repl.Res$Success.flatMap(Util.scala:22)
    ammonite.repl.Repl.action(Repl.scala:42)
    ammonite.repl.Repl.loop$1(Repl.scala:53)
    ammonite.repl.Repl.run(Repl.scala:56)
    ammonite.repl.Repl$.main(Repl.scala:80)
    ammonite.repl.Repl.main(Repl.scala)
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    java.lang.reflect.Method.invoke(Method.java:483)
    sbt.Run.invokeMain(Run.scala:67)
    sbt.Run.run0(Run.scala:61)
    sbt.Run.sbt$Run$$execute$1(Run.scala:51)
    sbt.Run$$anonfun$run$1.apply$mcV$sp(Run.scala:55)
    sbt.Run$$anonfun$run$1.apply(Run.scala:55)
    sbt.Run$$anonfun$run$1.apply(Run.scala:55)
    sbt.Logger$$anon$4.apply(Logger.scala:85)
    sbt.TrapExit$App.run(TrapExit.scala:248)
    java.lang.Thread.run(Thread.java:745)
Something unexpected went wrong =(

printing method types

Why do I get to know the type of val f but not of def f?

@ def f: Int -> String = 5 -> ""
defined function f
@ val f: Int -> String = 5 -> ""
f: psp.std.->[psp.std.Int,psp.std.String] = 5 ->
@

It seems you're not printing any methods types. This seems a significant omission.

Two compilation errors when using Scala 2.10.4

Attempting to build with 2.10.4 (for use with Spark projects):

[info] Compiling 11 Scala sources to /Users/deanwampler/projects/scala/Ammonite/core/target/scala-2.10/classes...
[error] /Users/deanwampler/projects/scala/Ammonite/core/src/main/scala/ammonite/pprint/PPrint.scala:219: object blackbox is not a member of package scala.reflect.macros
[error]     def FinalRepr[T: c.WeakTypeTag](c: scala.reflect.macros.blackbox.Context) = c.Expr[PPrint[T]] {
[error]                                                             ^
[error] /Users/deanwampler/projects/scala/Ammonite/core/src/main/scala/ammonite/ops/Tools.scala:19: value quote is not a member of object scala.util.matching.Regex
[error]       Regex.apply(scala.util.matching.Regex.quote(t).r, s)
[error]                                             ^
[error] two errors found

Once fixed, would it be possible to publish 2.10 artifacts?

Trouble with {} in REPL

@ Range(0, 5) map {_ * 2}
Compilation Failed
Main.scala:6: Missing closing brace `}' assumed here
        def $main() = {ReplBridge.shell.shellPPrint(`res3`, "res3") + " = " + ammonite.pprint.PPrint(`res3`)}
        ^

lots of absent completions

@ Direct(1).<tab>
##             asInstanceOf   isInstanceOf   toString       hashCode       equals         !=             ==
size           isEmpty        elemAt         foreach        getClass       any_s          try_s          matchOr
requiring      optionally     same           fix            id_##          id_==          |>             sideEffect
isOr           doto           reflect        isNull         toRef          castTo         isClass        shortPackage
shortClass     x              __shown_rep

// Same thing
@ Seq(Direct(1)).map(_.<tab>
##             asInstanceOf   isInstanceOf   toString       hashCode       equals         !=             ==
size           isEmpty        elemAt         foreach        getClass       any_s          try_s          matchOr
requiring      optionally     same           fix            id_##          id_==          |>             sideEffect
isOr           doto           reflect        isNull         toRef          castTo         isClass        shortPackage
shortClass     x              __shown_rep

That's missing a ton of completions, which can be seen (possibly only in part) with a slightly different formulation:

@ Direct(Direct(1)).map(_.<tab>  Display all 136 possibilities? (y or n)
##                 asInstanceOf       isInstanceOf       toString           hashCode           equals
!=                 ==                 size               isEmpty            elemAt             foreach
getClass           foreachSlice       viewOps            mapIndices         foreachIntIndex    foreachIndex
containsIndex      lastNth            lastIndex          lastIntIndex       nths               indices
isPositive         isZero             intSize            longSize           byShow             byRef
byEquals           partition          span               splitAt            join               directlySlice
linearlySlice      build              force              withFilter         takeWhile          takeRight
take               map                flatMap            dropWhile          dropRight          drop
collect            ++                 :|                 |:                 xs                 toEach
foldFrom           fold               foldr              foldl              foldWithIndex      groupBy
clusterBy          dropIndex          takeToFirst        ofClass            zipView            zipIndex
zip                withSize           tail               sliceWhile         slice              mapZip
mapWithIndex       mapApply           labelOp            init               grep               gatherClass
gather             filterNot          filter             sortBy             sortDistinct       sorted
min                max                zfoldr             zfoldl             zfirst             toRefs
tabular            nonEmpty           mk_s               mkString           last               indicesWhere
indexWhere         head               forallTrue         forall             first              find
exists             count              foreachReverse     foreachWithIndex   synchronized       ne
eq                 wait               notifyAll          notify             any_s              try_s
matchOr            requiring          optionally         same               fix                id_##
id_==              |>                 sideEffect         isOr               doto               reflect
isNull             toRef              castTo             isClass            shortPackage       shortClass
x                  __shown_rep

In case you doubt:

@ Direct(1).nonEmpty
res7: psp.std.Boolean = true
@

Ammonite-REPL as plugin

Hi Haoyi,

it would be great to be able to use Ammonite-REPL in ALL the projects :)
Could you package it as a plugin that can be added to the global SBT plugins?
If you don't have time, I can try to make a PR although it might take some time as I haven't built an SBT plugin yet.

Best
Martin

Add aliases ammonite.all.Path

Having to import them separately is annoying

Tests failing

Are the tests supposed to pass right now?

See their output here for example.

Printing results

Can you please provide a hook for how to print repl results? Pretty-printing is by default defined for most standard library types, as well as case classes and case objects. For other types not supported, it falls back to using toString says the doc. That's all undesirable for me.

I've gone to great lengths not to let toString infect everything in my library. It's essentially impossible to get out in front of scala's call to scala.runtime.ScalaRunTime.replStringOf because sbt is proguarded and bundled with a stripped down version. But Ammonite doesn't have to be as hostile to decent printing. I have a method like

object psp { def show[A: Show](x: A): String = implicitly[Show[A]] show x }

If there were some way to get the ammonite repl to use it on all results it would be hugely helpful.

bugs fixed by Ammonite

I think you should start a list somewhere of open tickets fixed in Ammonite. Random example from early in the search results is REPL can't handle (A*) => A.

scala> val f: (Int*) => Int = _.size
<console>:5: error: type mismatch;
 found   : Int* => Int
 required: Seq[Int] => Int
  lazy val $result = f
                                          ^

vs.

@ val f: (Int*) => Int = _.size
f: Seq[psp.std.Int] => psp.std.Int = <function1>
@

REPL doesn't work in Java 6

Ammonite-Ops will likely always need Java 7's NIO stuff to work without heavy refactoring, but Ammonite-REPL doesn't need to. We should split off the two to cut this dependency and perhaps have a fifth project e.g. "Ammonite-Shell" which aggregates them and provides the all-in-one functionality should people want it.

Truncate pretty-printed output so it doesn't take over the console

Currently, when something gets echoed in the console, it gets printed no matter how much output it produces, so for example this input:

@ Seq.fill(100)(100)

Leaves your terminal looking like this

After it's done. It's even worse with data-structures like infinite streams (described in #27) which will keep printing indefinitely.

We should control the output, such that after a certain amount of lines or characters has been printed, the rest is represented as ...:

@ Seq.fill(100)(100)
res0: Seq[Int] = List(
  100,
  100,
  100,
  100,
  100,
  100,
  100,
  100,
  100,
  100,
  100,
  100,
  100,
  100,
...
@

That prevents your console from being taken over by accidentally echoing large data structures to stdout. Similarly, commands which result in lots of lines, but only after wrapping, should have their output truncated to fit within some number of rows. e.g.

@ Seq.fill(1000)(100).toString

currently leaves your terminal looking like

100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 
100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 
100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 
100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 
100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 
100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 
100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 
100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 
100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 
100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 
100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 
100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 
100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 
100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 
100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 
100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 
100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100)"
@

But we really want to make it look like

@ Seq.fill(1000)(100).toString
res2: String = "List(100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 
100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 
100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 
100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 
100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 
100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 
100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 
100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 
100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 
100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 
100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 
...
@

We'll also need some way for the user to tell Ammonite to print the whole thing, on demand. e.g. something like

@ pprint(...)

Would print out the entire, console-flooding version of the command.

This feature would essentially fix #27

Problem with imports (wrappers?)

Using the current master branch, I get

Loading Ammonite Repl...

@ load.ivy("com.chuusai" %% "shapeless" % "2.1.0")
:: resolving dependencies :: com.chuusai#shapeless_2.11-caller;working
    ...
res0: Unit = ()

@ import shapeless._
import shapeless._

@ () // Nothing compiles starting from here, whatever the line we enter
Compilation Failed
Main.scala:1136: '}' expected but identifier found.
  ~?>$,
     ^

@

(re-formatted/stripped for readability).

The wrapper fails to compile once one imported shapeless._