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import sbt._
import Keys._
import KeyRanks.DTask
object Reporter {
import xsbti.{Reporter, Problem, Position, Severity, Maybe}
lazy val check = TaskKey[Unit]("check", "make sure compilation info are forwared to sbt")
// compilerReporter is marked private in sbt
lazy val compilerReporter = TaskKey[Option[xsbti.Reporter]]("compilerReporter", "Experimental hook to listen (or send) compilation failure messages.", DTask)
lazy val reporter =
Some(new xsbti.Reporter {
private val buffer = collection.mutable.ArrayBuffer.empty[Problem]
def reset(): Unit = buffer.clear()
def hasErrors: Boolean = buffer.exists(_.severity == Severity.Error)
def hasWarnings: Boolean = buffer.exists(_.severity == Severity.Warn)
def printSummary(): Unit = println(problems.mkString(System.lineSeparator))
def problems: Array[Problem] = buffer.toArray
def log(pos: Position, msg: String, sev: Severity): Unit = {
object MyProblem extends Problem {
def category: String = null
def severity: Severity = sev
def message: String = msg
def position: Position = pos
override def toString = s"custom: $position:$severity: $message"
}
buffer.append(MyProblem)
}
def comment(pos: xsbti.Position, msg: String): Unit = ()
})
lazy val checkSettings = Seq(
compilerReporter in (Compile, compile) := reporter,
check <<= (compile in Compile).mapFailure( _ => {
val problems = reporter.get.problems
println(problems.toList)
assert(problems.size == 2)
assert(problems.count(_.severity == Severity.Error) == 1) // not found: er1,
assert(problems.count(_.severity == Severity.Warn) == 1) // `with' as a type operator has been deprecated; use `&' instead,
})
)
}
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