[WIP] Update JLine to v3

[sake92]

Logic rewritten to use JLine3 API. Some notable improvements:

• autocomplete behaves like tabindex, you can select it 😲
• multiline editing works awesome
• multiline pasting works
• multiline string inserts TAB instead of doing autocomplete (when blank line)
• highlighting works fine
• opening paren/bracket even blinks when you close a paren, OMG
• Ctrl+Left/Ctrl+Right skips a word

Tests are passing, except ops/test? Seems unrelated, fails on other PRs also...

[lihaoyi]

@sake92 haven't look at this yet, but let me know when it's ready and I will

[sake92]

@lihaoyi ready for review

[lihaoyi]

I have no idea what's going on here, but it looks good to me 😛If you get this green I'll merge it

@robby-phd you're on windows right? Would you like to give this REPL a spin and see what you think?

[sake92]

@lihaoyi Hurry up and merge while it's green! 😄

[robby-phd]

@lihaoyi I'm actually on mac 😁.

I do have a VM for testing on Windows 10, so I gave it a spin (using MSYS2 terminal; the following is after running sbt amm/test:assembly on @sake92's upgrade-to-jline3):

$ ammonite-version-SNAPSHOT-2.12.4
Loading...
Mar 23, 2018 5:39:15 AM org.jline.utils.Log logr
WARNING: Unable to create a system terminal, creating a dumb terminal (enable debug logging for more information)
Compiling (synthetic)/ammonite/predef/interpBridge.sc
Compiling (synthetic)/ammonite/predef/replBridge.sc
Compiling (synthetic)/ammonite/predef/DefaultPredef.sc
Welcome to the Ammonite Repl version-SNAPSHOT
(Scala 2.12.4 Java 9.0.4.1)
If you like Ammonite, please support our development at www.patreon.com/lihaoyi
@ 2 + 1
......

@ Seq.fill(10)(Seq.fill(3)("Foo"))
Seq.fill(10)(Seq.fill(3)("Foo"))......

@ exit
Bye!

Using cmd (or with ConEmu for ANSI color, i.e., without --color false):

>java -jar -Xmx500m -XX:+UseG1GC ammonite-version-SNAPSHOT-2.12.4 --color false
Loading...
Compiling (synthetic)/ammonite/predef/interpBridge.sc
Compiling (synthetic)/ammonite/predef/replBridge.sc
Compiling (synthetic)/ammonite/predef/DefaultPredef.sc
Welcome to the Ammonite Repl version-SNAPSHOT
(Scala 2.12.4 Java 9.0.4.1)
If you like Ammonite, please support our development at www.patreon.com/lihaoyi
@ 2 + 1
res0: Int = 3

@ Seq.fill(10)(Seq.fill(3)("Foo"))
res1: Seq[Seq[String]] = List(
  List("Foo", "Foo", "Foo"),
  List("Foo", "Foo", "Foo"),
  List("Foo", "Foo", "Foo"),
  List("Foo", "Foo", "Foo"),
  List("Foo", "Foo", "Foo"),
  List("Foo", "Foo", "Foo"),
  List("Foo", "Foo", "Foo"),
  List("Foo", "Foo", "Foo"),
  List("Foo", "Foo", "Foo"),
  List("Foo", "Foo", "Foo")
)

@ exit
Bye!

On master (MSYS2):

$ ammonite-version-SNAPSHOT-2.12.4
Loading...
Compiling (synthetic)/ammonite/predef/replBridge.sc
Compiling (synthetic)/ammonite/predef/DefaultPredef.sc
Welcome to the Ammonite Repl version-SNAPSHOT
(Scala 2.12.4 Java 9.0.4.1)
If you like Ammonite, please support our development at www.patreon.com/lihaoyi
sh: /dev/tty: No such device or address
sh: /dev/tty: No such device or address
java.lang.RuntimeException: Nonzero exit value: 1
  scala.sys.package$.error(package.scala:27)
  scala.sys.process.ProcessBuilderImpl$AbstractBuilder.slurp(ProcessBuilderImpl.scala:134)
  scala.sys.process.ProcessBuilderImpl$AbstractBuilder.$bang$bang(ProcessBuilderImpl.scala:104)
  ammonite.terminal.TTY$.stty(Utils.scala:118)
  ammonite.terminal.TTY$.init(Utils.scala:97)
  ammonite.terminal.Terminal$.x$1$lzycompute$1(Terminal.scala:41)
  ammonite.terminal.Terminal$.x$1$1(Terminal.scala:41)
  ammonite.terminal.Terminal$.initialConfig$lzycompute$1(Terminal.scala:41)
  ammonite.terminal.Terminal$.initialConfig$1(Terminal.scala:41)
  ammonite.terminal.Terminal$.readLine(Terminal.scala:52)
  ammonite.repl.AmmoniteFrontEnd.readLine(AmmoniteFrontEnd.scala:131)
  ammonite.repl.AmmoniteFrontEnd.action(AmmoniteFrontEnd.scala:25)
  ammonite.repl.Repl.$anonfun$action$1(Repl.scala:157)
  ammonite.util.Catching.flatMap(Res.scala:114)
  ammonite.repl.Repl.action(Repl.scala:141)
  ammonite.repl.Repl.loop$1(Repl.scala:181)
  ammonite.repl.Repl.run(Repl.scala:197)
  ammonite.Main.$anonfun$run$2(Main.scala:201)
  scala.Option.getOrElse(Option.scala:121)
  ammonite.Main.run(Main.scala:188)
  ammonite.MainRunner.$anonfun$runRepl$1(Main.scala:370)
  ammonite.MainRunner.watchLoop(Main.scala:351)
  ammonite.MainRunner.runRepl(Main.scala:370)
  ammonite.Main$.main0(Main.scala:287)
  ammonite.Main$.main(Main.scala:251)
  ammonite.Main.main(Main.scala)

...

So, it's definitely much better for Windows support, though I'm not sure why in MSYS2 it's showing ...... for the repl result.

Note that ammonite.terminals.Utils (still) assumes sh, however, that code path does not seem to be executed; jline3 does seem to have support for tty.

[lihaoyi]

CC @adriaanm since you have been looking at jline3 too; feel free to re-use this code for the Scala REPL!

[adriaanm]

Cool, thanks!