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import sbt._
import Keys._
import java.util.Properties
import java.io.{File, FileInputStream}
import scala.collection.JavaConverters._
import BuildSettings.autoImport._
object VersionUtil {
lazy val copyrightString = settingKey[String]("Copyright string.")
lazy val versionProperties = settingKey[Versions]("Version properties.")
lazy val generateVersionPropertiesFile = taskKey[File]("Generating version properties file.")
lazy val generateBuildCharacterPropertiesFile = taskKey[File]("Generating buildcharacter.properties file.")
lazy val globalVersionSettings = Seq[Setting[_]](
// Set the version properties globally (they are the same for all projects)
versionProperties in Global := versionPropertiesImpl.value,
version in Global := versionProperties.value.mavenVersion
)
lazy val generatePropertiesFileSettings = Seq[Setting[_]](
copyrightString := "Copyright 2002-2017, LAMP/EPFL and Lightbend, Inc.",
resourceGenerators in Compile += generateVersionPropertiesFile.map(file => Seq(file)).taskValue,
generateVersionPropertiesFile := generateVersionPropertiesFileImpl.value
)
lazy val generateBuildCharacterFileSettings = Seq[Setting[_]](
generateBuildCharacterPropertiesFile := generateBuildCharacterPropertiesFileImpl.value
)
case class Versions(canonicalVersion: String, mavenVersion: String, osgiVersion: String, commitSha: String, commitDate: String, isRelease: Boolean) {
val githubTree =
if(isRelease) "v" + mavenVersion
else if(commitSha != "unknown") commitSha
else "master"
override def toString = s"Canonical: $canonicalVersion, Maven: $mavenVersion, OSGi: $osgiVersion, github: $githubTree"
def toMap: Map[String, String] = Map(
"version.number" -> canonicalVersion,
"maven.version.number" -> mavenVersion,
"osgi.version.number" -> osgiVersion
)
}
/** Compute the canonical, Maven and OSGi version number from `baseVersion` and `baseVersionSuffix`.
* Examples of the generated versions:
*
* ("2.11.8", "SNAPSHOT" ) -> ("2.11.8-20151215-133023-7559aed", "2.11.8-bin-SNAPSHOT", "2.11.8.v20151215-133023-7559aed")
* ("2.11.8", "SHA-SNAPSHOT") -> ("2.11.8-20151215-133023-7559aed", "2.11.8-bin-7559aed-SNAPSHOT", "2.11.8.v20151215-133023-7559aed")
* ("2.11.8", "SHA" ) -> ("2.11.8-7559aed", "2.11.8-bin-7559aed", "2.11.8.v20151215-133023-7559aed")
* ("2.11.0", "SHA" ) -> ("2.11.0-7559aed", "2.11.0-pre-7559aed", "2.11.0.v20151215-133023-7559aed")
* ("2.11.8", "" ) -> ("2.11.8", "2.11.8", "2.11.8.v20151215-133023-VFINAL-7559aed")
* ("2.11.8", "M3" ) -> ("2.11.8-M3", "2.11.8-M3", "2.11.8.v20151215-133023-M3-7559aed")
* ("2.11.8", "RC4" ) -> ("2.11.8-RC4", "2.11.8-RC4", "2.11.8.v20151215-133023-RC4-7559aed")
* ("2.11.8-RC4", "SPLIT" ) -> ("2.11.8-RC4", "2.11.8-RC4", "2.11.8.v20151215-133023-RC4-7559aed")
*
* A `baseVersionSuffix` of "SNAPSHOT" is the default, which is used for local snapshot builds. The PR validation
* job uses "SHA-SNAPSHOT". A proper version number for an integration build can be computed with "SHA". An empty
* suffix is used for releases. All other suffix values are treated as RC / milestone builds. The special suffix
* value "SPLIT" is used to split the real suffix off from `baseVersion` instead and then apply the usual logic. */
private lazy val versionPropertiesImpl: Def.Initialize[Versions] = Def.setting {
val (base, suffix) = {
val (b, s) = (baseVersion.value, baseVersionSuffix.value)
if(s == "SPLIT") {
val split = """([\w+\.]+)(-[\w+\.]+)??""".r
val split(b2, sOrNull) = b
(b2, Option(sOrNull).map(_.drop(1)).getOrElse(""))
} else (b, s)
}
def executeTool(tool: String) = {
val cmd =
if (System.getProperty("os.name").toLowerCase.contains("windows"))
s"cmd.exe /c tools\\$tool.bat -p"
else s"tools/$tool"
Process(cmd).lines.head
}
val date = executeTool("get-scala-commit-date")
val sha = executeTool("get-scala-commit-sha").substring(0, 7) // The script produces 10 digits at the moment
val Patch = """\d+\.\d+\.(\d+)""".r
def cross = base match {
case Patch(p) if p.toInt > 0 => "bin"
case _ => "pre"
}
val (canonicalV, mavenV, osgiV, release) = suffix match {
case "SNAPSHOT" => (s"$base-$date-$sha", s"$base-$cross-SNAPSHOT", s"$base.v$date-$sha", false)
case "SHA-SNAPSHOT" => (s"$base-$date-$sha", s"$base-$cross-$sha-SNAPSHOT", s"$base.v$date-$sha", false)
case "SHA" => (s"$base-$sha", s"$base-$cross-$sha", s"$base.v$date-$sha", false)
case "" => (s"$base", s"$base", s"$base.v$date-VFINAL-$sha", true)
case suffix => (s"$base-$suffix", s"$base-$suffix", s"$base.v$date-$suffix-$sha", true)
}
Versions(canonicalV, mavenV, osgiV, sha, date, release)
}
private lazy val generateVersionPropertiesFileImpl: Def.Initialize[Task[File]] = Def.task {
writeProps(versionProperties.value.toMap + ("copyright.string" -> copyrightString.value),
(resourceManaged in Compile).value / s"${thisProject.value.id}.properties")
}
private lazy val generateBuildCharacterPropertiesFileImpl: Def.Initialize[Task[File]] = Def.task {
writeProps(versionProperties.value.toMap, (baseDirectory in ThisBuild).value / "buildcharacter.properties")
}
private def writeProps(m: Map[String, String], propFile: File): File = {
val props = new Properties
m.foreach { case (k, v) => props.put(k, v) }
// unfortunately, this will write properties in arbitrary order
// this makes it harder to test for stability of generated artifacts
// consider using https://github.com/etiennestuder/java-ordered-properties
// instead of java.util.Properties
IO.write(props, null, propFile)
propFile
}
/** The global versions.properties data */
lazy val versionProps: Map[String, String] = {
val props = new Properties()
val in = new FileInputStream(file("versions.properties"))
try props.load(in)
finally in.close()
props.asScala.toMap.map {
case (k, v) => (k, sys.props.getOrElse(k, v)) // allow system properties to override versions.properties
}
}
/** Get a subproject version number from `versionProps` */
def versionNumber(name: String): String =
versionProps(s"$name.version.number")
/** Build a dependency to a Scala module with the given group and artifact ID */
def scalaDep(group: String, artifact: String, versionProp: String = null, scope: String = null, compatibility: String = "binary") = {
val vp = if(versionProp eq null) artifact else versionProp
val m = group % (artifact + "_" + versionProps(s"scala.$compatibility.version")) % versionNumber(vp)
val m2 = if(scope eq null) m else m % scope
// exclusion of the scala-library transitive dependency avoids eviction warnings during `update`:
m2.exclude("org.scala-lang", "*")
}
private def bootstrapOrganization(path: String) =
"org.scala-lang.scala-sha-bootstrap." + path.replace('/', '.')
/** Build a dependency to a JAR file in the bootstrap repository */
def bootstrapDep(baseDir: File, path: String, libName: String): ModuleID = {
val sha = IO.read(baseDir / path / s"$libName.jar.desired.sha1").split(' ')(0)
bootstrapOrganization(path) % libName % sha from
s"https://dl.bintray.com/typesafe/scala-sha-bootstrap/org/scala-lang/bootstrap/$sha/$path/$libName.jar"
}
/** Copy a boostrap dependency JAR that is on the classpath to a file */
def copyBootstrapJar(cp: Seq[Attributed[File]], baseDir: File, path: String, libName: String): Unit = {
val org = bootstrapOrganization(path)
val resolved = cp.find { a =>
val mod = a.get(moduleID.key)
mod.map(_.organization) == Some(org) && mod.map(_.name) == Some(libName)
}.map(_.data).get
IO.copyFile(resolved, baseDir / path / s"$libName.jar")
}
}
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