sbt/sbt

A relaxed chat room about sbt (the interactive build tool). Also good for sbt help: Stack Overflow, or Lightbend subscription. https://www.scala-sbt.org/support.html has advice on where to go.

Krishna Padmasola

@kpadmasola

@thsutton I am using these plugins:

> plugins                                                                
In file:/E:/perf/                                     
        sbt.plugins.IvyPlugin: enabled in perf                           
        sbt.plugins.JvmPlugin: enabled in perf                           
        sbt.plugins.CorePlugin: enabled in perf                          
        sbt.plugins.JUnitXmlReportPlugin: enabled in perf                
        sbt.plugins.Giter8TemplatePlugin: enabled in perf                
        com.typesafe.sbteclipse.plugin.EclipsePlugin: enabled in perf    
        coursier.CoursierPlugin: enabled in perf                         
        io.gatling.sbt.GatlingPlugin: enabled in perf

in build.sbt I have scalaVersion := "2.12.2"
how do I find out which plugin is incompatible with this version of scala ?

Krishna Padmasola

@kpadmasola

@thsutton figured it out by looking at https://github.com/gatling/gatling-sbt-plugin-demo/blob/master/build.sbt. I changed scalaVersion := "2.11.8" in my build.sbt and the error is gone. Thanks!

Sukant Hajra

@shajra

Is the "requires" field of an AutoPlugin used at all if the "trigger" is set to "noTrigger"? I think I understand how it's used when the trigger is set to "allRequirements".

Thomas Sutton

@thsutton

@kpadmasola No worries. It's a rare question in here that I can try to help with. :-)

eugene yokota

@eed3si9n

@shajra without requires your plugin will load at quasi random order potentially before all the sbt default settings

Sukant Hajra

@shajra

This message was deleted

Han van Venrooij

@irundaia

Hi guys,

I've got an issue where I package a native lib in a jar along with my sbt plugin. When the user of the plugin has a different version on his machine, there is the possibility for linking issues when the library is loaded with Native.loadLibrary.
Do you know of a way to force loading the library from the jar?

Oron Port

@soronpo

How do I remove options of scalacOptions by pattern matching?

Dale Wijnand

@dwijnand

Such as?

Oron Port

@soronpo

I have

...
"-Xplugin:/home/soronpo/.ivy2/cache/org.scalamacros/paradise_2.12.2/jars/paradise_2.12.2-2.1.0.jar", 
...
"-Xplugin:/home/soronpo/.ivy2/cache/org.scalameta/paradise_2.12.2/jars/paradise_2.12.2-3.0.0-M9.jar"
...

and want to just remove .*paradise.*

Dale Wijnand

@dwijnand

scalacOptions ~= { opts => ... }

Oron Port

@soronpo

What does ~= do? I cannot find documentations for it

Dale Wijnand

@dwijnand

modifies the value of the key

Hmm, wow, we really don't have ~= in the docs

Oron Port

@soronpo

@dwijnand I'm sorry, but I still don't follow. How does this allow me to remove the specific settings?
Here is my setting. I want to remove the entries which have paradise in their value.

[info] * -deprecation
[info] * -encoding
[info] * UTF-8
[info] * -feature
[info] * -language:existentials
[info] * -language:experimental.macros
[info] * -language:higherKinds
[info] * -language:implicitConversions
[info] * -unchecked
[info] * -Xfatal-warnings
[info] * -Xfuture
[info] * -Xlint:-unused,_
[info] * -Yliteral-types
[info] * -Yno-adapted-args
[info] * -Ywarn-numeric-widen
[info] * -Xplugin-require:macroparadise
[info] * -Xplugin:/home/soronpo/.ivy2/cache/org.scalamacros/paradise_2.12.2/jars/paradise_2.12.2-2.1.0.jar
[info] * -Xplugin:/home/soronpo/.ivy2/cache/org.scalameta/paradise_2.12.2/jars/paradise_2.12.2-3.0.0-M9.jar

Dale Wijnand

@dwijnand

Sorry, @soronpo, got distracted. scalacOptions ~= (_ filterNot (_ contains "paradise"))

Though really I think you should fix the upstream issue of having different paradise plugins in your build

Oron Port

@soronpo

@dwijnand It's a workaround, since meta isn't currently working in REPL. So actually I'll be doing scalacOptions in (Compile, console) ~= (_ filterNot (_ contains "paradise")).

Dale Wijnand

@dwijnand

gotcha

Oron Port

@soronpo

missing parameter type for expanded function ((x$1) => x$1.filterNot(((x$2) => x$2.contains("paradise"))))
scalacOptions in (Compile, console) ~= (_ filterNot (_ contains "paradise"))
^

Dale Wijnand

@dwijnand

scalameta/paradise#10 ?

Oron Port

@soronpo

scalameta/paradise#10 ?
yes

Dale Wijnand

@dwijnand

That message is confusing

worked in my mini repro

Oron Port

@soronpo

OK, my bad. Forgot a comma somewhere .

Yes! Works like a charm. Many thanks.

Dale Wijnand

@dwijnand

cool

Sukant Hajra

@shajra

@eed3si9n question about sbt-doge. Would enabling it with an AutoPlugin on all projects (not just an aggregate root) be a bad idea?

Sorry, I mean CrossCompilePerProjectPlugin.

Jose C

@jmcardon

Hey guys, is sbt-onejar the preferred way of packaging?

Adelbert Chang

@adelbertc

@jmcardon i think sbt-onejar is no longer maintained is it? sbt-assembly seems to be the way to go. also less classloader voodoo

https://github.com/sbt/sbt-onejar last commit 2013

Sukant Hajra

@shajra

I just looked at the sbt-coursier project. Maybe I'm a bit dense, but which problem does it solve that people find most useful? Resolutions taking a while?

Ghost

@ghost~540393fe163965c9bc2018ce

is there an option that when a macro is changed, all downstream code is marked dirty?

it's really hard to find it given that most google for "sbt macro incremental compiler" give completely the wrong thing

Jorge

@jvican

yes, there's a way.

and it's been proven to work well. i would like to try to merge it in the future inside Zinc (in a minor release, after sbt 1.0) @fommil

have a look at Martin Duhem's thesis on incremental macro compilation https://infoscience.epfl.ch/record/204855/files/MacrosInSbtProblemSolved.pdf

Thomas Sutton

@thsutton

@shajra Being faster and not having the ridiculous Ivy lock are the two reasons that leap to mind. I've found the concurrent downloading is especially pleasing when I'm stuck behind particularly obnoxious corporate proxies with rate limiting, etc.

Sukant Hajra

@shajra

I see... I'm not having incredible problems with this right now, but I'll keep it in mind.

Sukant Hajra

@shajra

Is there a good SBT API for comparing versions scalaVersion, which is just a String?

CrossVersion, I see it now.

Sukant Hajra

@shajra

So I tried to change a setting based on scalaVersion.value, and was crossing my fingers that this would work with cross-compiling, but that didn't work. I feel when the +/++ commands are run, the settings don't get re-evaluated.

Sukant Hajra

@shajra

Hmm... maybe it's supposed to work... https://stackoverflow.com/questions/27698586/how-to-set-different-scalacoptions-per-scala-version-when-cross-compiling-using

Ghost

@ghost~540393fe163965c9bc2018ce

@jvican I mean a brute force recompile the world flag, I'm sure I seen it somewhere.

Dale Wijnand

@dwijnand

that's the out the box behaviour

if you don't opt-out it comes with a big annoying message telling you exactly everything it's undone because you're a (dirty) macro user.

@shajra yeah +/++ create session settings, that are used to re-evaluate and re-define all the setting values. If you can share what you're seeing we might be able to help you out.

And your sbt-doge question, did you mean in your project or are you talking about whether sbt-doge should be changed?

Ghost

@ghost~540393fe163965c9bc2018ce

@dwijnand hmm, maybe it's broken for scala.meta

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