JENKINS-42475 Add support for pipeline

[froque]

Testing done

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[jglick]

This would not necessarily be a good idea. jenkins-infra/jenkins.io#7693 What does this plugin actually do that you could not do just as easily without any special plugin?

sbt-plugin/src/main/java/org/jvnet/hudson/plugins/SbtPluginBuilder.java

Lines 104 to 105 in d60f4eb

	* Perform the sbt build. Interpret the command arguments and create a
	* command line, then run it.

does not look particularly helpful.

sbt-plugin/src/main/java/org/jvnet/hudson/plugins/SbtPluginBuilder.java

Line 343 in d60f4eb

public static final class SbtInstallation extends ToolInstallation implements

perhaps, but you can also use this with the tool step if you really want (though these days I would advise using container-based builds and ignoring the tool system).

[froque]

The idea here is to simplify this

    tools {
      jdk 'java-1.8.0'
    }

    environment {
      SBT_HOME = tool name: '1.10.5', type: 'org.jvnet.hudson.plugins.SbtPluginBuilder$SbtInstallation'
      PATH = "${env.SBT_HOME}/bin:${env.PATH}"
    }

into this:

    tools {
      jdk 'java-1.8.0'
      sbt '1.10.5'
    }

@jglick do you object this change as is ? What do you propose instead ?