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vmunier / scalajs-cross-project-intellij

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Scala.js Cross Project working with IntelliJ

IntelliJ Scala Plugin v1.3.3 or higher

Importing a project works well when using the IntelliJ scala plugin v1.3.3 or higher.

In IntelliJ, open Project wizard, select Import Project, choose the root folder and click OK. Select Import project from external model option, choose SBT project and click Next. Select additional import options and click Finish.

IntelliJ Scala Plugin prior to v1.3.3

There are known issues with the Scala plugin prior to v1.3.3.

A workaround is to use the sbt-idea plugin (included in project/plugins.sbt of this sample):

  1. $ sbt gen-idea
  2. Inside IntelliJ, File/Open..., choose the root folder to import all the projects (do not use Import Project... or Import Module...)

IntelliJ 14

You will be prompted to convert the old format to a new format. Just click Convert.

Changes in build.sbt

Here's the annoying part. Every time you do some changes in build.sbt, import a fresh new IDEA project:

Inside IntelliJ, delete scalajs-cross-project-intellij, then
$ cd scalajs-cross-project-intellij
$ rm -r .idea/ .idea_modules/
$ sbt gen-idea
Inside IntelliJ, File/Open..., choose scalajs-cross-project-intellij to import all the projects

Run the application

Run the jvm project from sbt:

$ sbt
> exampleJVM/run

Run the js project from sbt:

$ sbt
> exampleJS/run

Run the javascript output file in a web browser:

$ sbt
> exampleJS/fastOptJS
$ open index-fastopt.html