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package com.github.jodersky.mavlink.sbt
import MavlinkKeys._
import com.github.jodersky.mavlink.Generator
import com.github.jodersky.mavlink.Parser
import com.github.jodersky.mavlink.Reporter
import sbt._
import sbt.Keys._
import sbt.plugins._
import scala.xml.XML
object SbtMavlink extends AutoPlugin {
override def trigger = allRequirements
override def requires = JvmPlugin //this is required as sourceGenerators are otherwise reset
override lazy val projectSettings: Seq[Setting[_]] = Seq(
mavlinkDialect := baseDirectory.value / "conf" / "mavlink.xml",
mavlinkTarget := sourceManaged.value,
mavlinkGenerate := generationTask.value,
sourceGenerators in Compile += mavlinkGenerate.taskValue
)
lazy val generationTask = Def.task[Seq[File]] {
val dialectDefinitionFile = mavlinkDialect.value
if (!dialectDefinitionFile.exists) sys.error(
"Dialect definition " + dialectDefinitionFile.getAbsolutePath + " does not exist."
)
val reporter = new Reporter {
def printWarning(msg: String) = streams.value.log.warn(msg)
}
val dialectDefinition = XML.loadFile(dialectDefinitionFile)
val dialect = (new Parser(reporter)).parseDialect(dialectDefinition)
val pathToSource = (new Generator(dialect)).generate()
val outDirectory = mavlinkTarget.value
streams.value.log.info("Generating mavlink files...")
val files = for ((path, source) <- pathToSource) yield {
val file = outDirectory / path
streams.value.log.info("Generating " + file)
IO.write(file, source)
file.getAbsoluteFile
}
streams.value.log.info("Done generating mavlink files")
files
}
}
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