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package cc.spray.boilerplate
import sbt._
import Keys._
object BoilerplatePlugin extends Plugin {
object Boilerplate {
val boilerplateGenerate = TaskKey[Seq[File]]("boilerplate-generate", "Generates boilerplate from template files")
val settings = seq(
sourceDirectory in boilerplateGenerate <<= (sourceDirectory in Compile) / "boilerplate",
target in boilerplateGenerate <<= (sourceManaged in Compile),
boilerplateGenerate <<= (streams, sourceDirectory in boilerplateGenerate, target in boilerplateGenerate) map Generator.generateFromTemplates,
(sourceGenerators in Compile) <+= boilerplateGenerate,
(managedSourceDirectories in Compile) <+= target in boilerplateGenerate,
// watch sources support
includeFilter in boilerplateGenerate := "*.template",
excludeFilter in boilerplateGenerate <<= excludeFilter in Global,
watch(sourceDirectory in boilerplateGenerate, includeFilter in boilerplateGenerate, excludeFilter in boilerplateGenerate),
// add managed sources to the packaged sources
mappings in (Compile, packageSrc) <++=
(sourceManaged in Compile, managedSources in Compile) map { (base, srcs) =>
(srcs x (Path.relativeTo(base) | Path.flat))
}
)
def watch(sourceDirKey: SettingKey[File], filterKey: SettingKey[FileFilter], excludeKey: SettingKey[FileFilter]) =
watchSources <++= (sourceDirKey, filterKey, excludeKey) map descendents
def descendents(sourceDir: File, filt: FileFilter, excl: FileFilter) =
sourceDir.descendantsExcept(filt, excl).get
}
}
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