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metasim/java2scala-recipe.md

Last active August 29, 2015 14:08
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Quickly convert a bunch of Java files to Scala from the command line
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java2scala-recipe.md

Here's one way of brute-force converting a bunch of Java code to Scala without too much concern for correctness.

Hard stuff is done by scalagen.

If the project is Maven-based with an existing pom.xml, all you need to do is run the scalagen Maven plugin:

mvn com.mysema.scalagen:scalagen-maven-plugin_2.10.1:0.3.2:main -DtargetFolder=target/scala

You have to have a pom.xml file for this to work. If your project is configured with sbt (or have no project!), use the sbt makePom task to create one:

sbt makePom
...
cp target/scala-2.10/*.pom pom.xml # Or whatever your scala version is
mvn com.mysema.scalagen:scalagen-maven-plugin_2.10.1:0.3.2:main -DtargetFolder=target/scala
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