workarounds.scala

// sbt-git workarounds (TODO upstream into sbt-tl)

inThisBuild {
  git.uncommittedSignifier := Some("-SNAPSHOT")

  git.formattedShaVersion := {
    val Description = """^.*-(\d+)-[a-zA-Z0-9]+$""".r
    val suffix = git.makeUncommittedSignifierSuffix(git.gitUncommittedChanges.value, git.uncommittedSignifier.value)

    val description = Try("git describe --tags --match v*".!!.trim).toOption
    val optDistance = description collect {
      case Description(distance) => distance + "-"
    }

    val distance = optDistance.getOrElse("")

    git.gitHeadCommit.value map { _.substring(0, 7) } map { sha =>
      tlBaseVersion.value + "-" + distance + sha + suffix
    }
  }

  git.gitUncommittedChanges := Try("git status -s".!!.trim.length > 0).getOrElse(true)

  git.gitHeadCommit := Try("git rev-parse HEAD".!!.trim).toOption
  git.gitCurrentTags := Try("git tag --contains HEAD".!!.trim.split("\\s+").toList.filter(_ != "")).toOption.toList.flatten
}