sbt

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 5 years ago . I'm migrating a project from Apache Maven to sbt. My project has lots of dependencies (over 200), and sometimes, a class can be duplicated that can lead to strange effects. In Maven I've been using maven-duplicate-finder-plugin for detecting such cases. The only solution I can see is to generate a big jar with

问题 SBT keeps failing with improper append errors. Im using the exact format of build files I have seen numerous times. build.sbt: lazy val backend = (project in file("backend")).settings( name := "backend", libraryDependencies ++= (Dependencies.backend) ).dependsOn(api).aggregate(api) dependencies.scala: import sbt._ object Dependencies { lazy val backend = common ++ metrics val common = Seq( "com.typesafe.akka" %% "akka-actor" % Version.akka, "com.typesafe.akka" %% "akka-cluster" % Version.akka

问题 I'm finding the documentation at http://www.scala-sbt.org/0.13/docs/Input-Tasks.html utterly baffling. Can someone provide me with a complete example of a task/input task that takes a command line argument and does something with it e.g.: sbt "greeting hello world" and prints "hello world" 回答1: Following the document Input Tasks (with the main change to the name of the input task so it's greeting ): import sbt.complete.Parsers.spaceDelimited val greeting = inputKey[Unit]("A demo input task.")

问题 I am trying to get a simple Akka program building with Eclipse and Scala. I used g8 to create the sbt project with Akka(g8 typesafehub/akka-scala-sbt) and then sbteclispe to create the Eclipse project. When I import the project into Eclipse I'm given errors saying I am missing Akka. Is there any way that I can build an Akka project with Eclipse? 回答1: The simplest thing is to add the sbteclipse plugin to your Sbt build. It automatically generates project files for Eclipse, so that you can

问题 I use IntelliJ IDEA 13.1 Community Edition with the Scala plugin 0.32.593 . What's the recommended way to execute a SBT plugin's tasks, say dependencyUpdates from sbt-updates? 回答1: In version 15 of IntelliJ IDEA, using Scala Plugin version 2.0 , you can run SBT tasks by adding a run configuration. First add a new run configuration by clicking on Run -> Edit Configurations . Then click the + button to add a new configuration and choose SBT Task form the list Now provide the list of tasks

问题 I have some JMH benchmarks that I'm trying to analyze. I want to enable GC logging to see how much garbage is being generated, but I can't figure out how to pass JVM arguments. I know JMH runs benchmarks in a forked JVM, so it's not immediately obvious to me how to do this. I'm using SBT. 回答1: If I read sbt-jmh docs right, it passes the application options to JMH runner with jmh:run ... . So, having that JMH command line accepts --jvmArgs "..." , I would try to do jmh:run --jvmArgs "-XX:

问题 When I try to run my app, IntelliJ has just started to tell me "Command Line is too Long. Shorten command line for my_app or also for Application default configuration." the my_app is a blue link which leads to an "Edit Configuration" window, automatically selecting and highlighting a dropdown for class path shortener. I select the suggested options, but no change. I have no idea what this means - I'm using Scala, so I'm using a simple object MyObj extends App which takes no parameters at all

问题 Currently, I use export JAVA_OPTS ... on the command line, but there seem to be other possibilities, using the build.sbt or an external property file. I have found several relevant github issues here, here and here but the many options are confusing. Is there a recommended approach? 回答1: The approach you take to setting JVM options depends mainly on your use case: Inject options every time If you want to be able to specify the options every time you run your service, the two mechanisms are

问题 We need a base play framework projects which contains other play and scala projects as module. Those inner independent projects can have different javascript frameworks and build system like webpack, gulp, etc. So I tried the PlayRunHook from https://www.playframework.com/documentation/2.4.x/SBTCookbook . Single project hooking working as expected. But, unable to get it right on multi module project. Some code samples... Project Structure base/build.sbt name := """base""" version := "1.0

问题 I am trying to use a compiler plugin with sbt (I'm on 0.13.5), passed along in my build.sbt as: autoCompilerPlugins := true scalacOptions += "-Xplugin:myCompilerPluginJar.jar" This works, the plugin runs, however I would really like to only run the plugin on some explicit compiles (perhaps with a scoped compile task or a custom task). If I try something like: val PluginConfig = config("plugin-config") extend(Compile) autoCompilerPlugins := true scalacOptions in PluginConfig += "-Xplugin