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package cbt
import java.io._
import java.net._
import java.lang.reflect.InvocationTargetException
import java.nio.file.{Path =>_,_}
import java.nio.file.Files.readAllBytes
import java.security.MessageDigest
import java.util.jar._
import java.lang.reflect.Method
import scala.util._
// pom model
case class Developer(id: String, name: String, timezone: String, url: URL)
/** Don't extend. Create your own libs :). */
final class Lib(logger: Logger) extends Stage1Lib(logger) with Scaffold{
lib =>
val buildClassName = "Build"
val buildBuildClassName = "BuildBuild"
def copy(cls: Class[_], context: Context) =
cls
.getConstructor(classOf[Context])
.newInstance(context)
/** Loads Build for given Context */
def loadDynamic(context: Context, default: Context => BuildInterface = new BasicBuild(_)): BuildInterface = {
context.logger.composition( context.logger.showInvocation("Build.loadDynamic",context) )
loadRoot(context, default).finalBuild
}
/**
Loads whatever Build needs to be executed first in order to eventually build the build for the given context.
This can either the Build itself, of if exists a BuildBuild or a BuildBuild for a BuildBuild and so on.
*/
def loadRoot(context: Context, default: Context => BuildInterface = new BasicBuild(_)): BuildInterface = {
context.logger.composition( context.logger.showInvocation("Build.loadRoot",context.projectDirectory) )
def findStartDir(projectDirectory: File): File = {
val buildDir = realpath( projectDirectory ++ "/build" )
if(buildDir.exists) findStartDir(buildDir) else projectDirectory
}
val start = findStartDir(context.projectDirectory)
val useBasicBuildBuild = context.projectDirectory == start
val rootBuildClassName = if( useBasicBuildBuild ) buildBuildClassName else buildClassName
try{
if(useBasicBuildBuild) default( context ) else new cbt.BasicBuild( context.copy( projectDirectory = start ) ) with BuildBuild
} catch {
case e:ClassNotFoundException if e.getMessage == rootBuildClassName =>
throw new Exception(s"no class $rootBuildClassName found in " ++ start.string)
}
}
def srcJar(sourceFiles: Seq[File], artifactId: String, scalaMajorVersion: String, version: String, jarTarget: File): Option[File] = {
lib.jarFile(
jarTarget ++ ("/"++artifactId++"_"++scalaMajorVersion++"-"++version++"-sources.jar"),
sourceFiles
)
}
def jar(artifactId: String, scalaMajorVersion: String, version: String, compileTarget: File, jarTarget: File): Option[File] = {
lib.jarFile(
jarTarget ++ ("/"++artifactId++"_"++scalaMajorVersion++"-"++version++".jar"),
Seq(compileTarget)
)
}
def docJar(
cbtHasChanged: Boolean,
scalaVersion: String,
sourceFiles: Seq[File],
dependencyClasspath: ClassPath,
apiTarget: File,
jarTarget: File,
artifactId: String,
scalaMajorVersion: String,
version: String,
compileArgs: Seq[String],
classLoaderCache: ClassLoaderCache,
mavenCache: File
): Option[File] = {
if(sourceFiles.isEmpty){
None
} else {
apiTarget.mkdirs
val args = Seq(
// FIXME: can we use compiler dependency here?
"-cp", dependencyClasspath.string, // FIXME: does this break for builds that don't have scalac dependencies?
"-d", apiTarget.toString
) ++ compileArgs ++ sourceFiles.map(_.toString)
logger.lib("creating docs for source files "+args.mkString(", "))
redirectOutToErr{
runMain(
"scala.tools.nsc.ScalaDoc",
args,
ScalaDependencies(cbtHasChanged,mavenCache,scalaVersion)(logger).classLoader(classLoaderCache)
)
}
lib.jarFile(
jarTarget ++ ("/"++artifactId++"_"++scalaMajorVersion++"-"++version++"-javadoc.jar"),
Vector(apiTarget)
)
}
}
// task reflection helpers
def tasks(cls:Class[_]): Map[String, Method] =
Stream
.iterate(cls.asInstanceOf[Class[Any]])(_.getSuperclass)
.takeWhile(_ != null)
.toVector
.dropRight(1) // drop Object
.reverse
.flatMap(
c =>
c
.getDeclaredMethods
.filterNot( _.getName contains "$" )
.filter{ m =>
java.lang.reflect.Modifier.isPublic(m.getModifiers)
}
.filter( _.getParameterTypes.length == 0 )
.map(m => NameTransformer.decode(m.getName) -> m)
).toMap
def taskNames(cls: Class[_]): Seq[String] = tasks(cls).keys.toVector.sorted
def usage(buildClass: Class[_], show: String): String = {
val baseTasks = Seq(
classOf[BasicBuild],
classOf[PackageJars],
classOf[Publish]
).flatMap(lib.taskNames).distinct.sorted
val thisTasks = lib.taskNames(buildClass) diff baseTasks
(
(
if( thisTasks.nonEmpty ){
s"""Methods provided by Build ${show}
${thisTasks.mkString(" ")}
"""
} else ""
) ++ s"""Methods provided by CBT (but possibly overwritten)
${baseTasks.mkString(" ")}"""
) ++ "\n"
}
class ReflectBuild[T:scala.reflect.ClassTag](build: BuildInterface) extends ReflectObject(build){
def usage = lib.usage(build.getClass, build.show)
}
abstract class ReflectObject[T](obj: T){
def usage: String
def callNullary( taskName: Option[String] ): ExitCode = {
logger.lib("Calling task " ++ taskName.toString)
val ts = tasks(obj.getClass)
taskName.map( NameTransformer.encode ).flatMap(ts.get).map{ method =>
val result: Option[Any] = Option(method.invoke(obj)) // null in case of Unit
result.flatMap{
case v: Option[_] => v
case other => Some(other)
}.map{
value =>
// Try to render console representation. Probably not the best way to do this.
scala.util.Try( value.getClass.getDeclaredMethod("toConsole") ) match {
case scala.util.Success(toConsole) =>
println(toConsole.invoke(value))
ExitCode.Success
case scala.util.Failure(e) if Option(e.getMessage).getOrElse("") contains "toConsole" =>
value match {
case code if code.getClass.getSimpleName == "ExitCode" =>
// FIXME: ExitCode needs to be part of the compatibility interfaces
ExitCode(Stage0Lib.get(code,"integer").asInstanceOf[Int])
case other =>
println( other.toString ) // no method .toConsole, using to String
ExitCode.Success
}
case scala.util.Failure(e) =>
throw e
}
}.getOrElse(ExitCode.Success)
}.getOrElse{
taskName.foreach{ n =>
System.err.println(s"Method not found: $n")
System.err.println("")
}
System.err.println(usage)
taskName.map{ _ =>
ExitCode.Failure
}.getOrElse( ExitCode.Success )
}
}
}
// file system helpers
def basename(path: File): String = path.toString.stripSuffix("/").split("/").last
def dirname(path: File): File = new File(realpath(path).string.stripSuffix("/").split("/").dropRight(1).mkString("/"))
def nameAndContents(file: File) = basename(file) -> readAllBytes(file.toPath)
/** Which file endings to consider being source files. */
def sourceFileFilter(file: File): Boolean = file.toString.endsWith(".scala") || file.toString.endsWith(".java")
def sourceFiles( sources: Seq[File], sourceFileFilter: File => Boolean = sourceFileFilter ): Seq[File] = {
for {
base <- sources.filter(_.exists).map(lib.realpath)
file <- lib.listFilesRecursive(base) if file.isFile && sourceFileFilter(file)
} yield file
}
def jarFile( jarFile: File, files: Seq[File] ): Option[File] = {
if( files.isEmpty ){
None
} else {
jarFile.getParentFile.mkdirs
logger.lib("Start packaging "++jarFile.string)
val manifest = new Manifest
manifest.getMainAttributes().put(Attributes.Name.MANIFEST_VERSION, "1.0")
val jar = new JarOutputStream(new FileOutputStream(jarFile.toString), manifest)
try{
val names = for {
base <- files.filter(_.exists).map(realpath)
file <- listFilesRecursive(base) if file.isFile
} yield {
val name = if(base.isDirectory){
file.toString stripPrefix (base.toString ++ File.separator)
} else file.toString
val entry = new JarEntry( name )
entry.setTime(file.lastModified)
jar.putNextEntry(entry)
jar.write( readAllBytes( file.toPath ) )
jar.closeEntry
name
}
val duplicateFiles = (names diff names.distinct).distinct
assert(
duplicateFiles.isEmpty,
s"Conflicting file names when trying to create $jarFile: "++duplicateFiles.mkString(", ")
)
} finally {
jar.close
}
logger.lib("Done packaging " ++ jarFile.toString)
Some(jarFile)
}
}
lazy val passphrase =
Option(System.console).getOrElse(
throw new Exception("Can't access Console. This probably shouldn't be run through Nailgun.")
).readPassword(
"GPG Passphrase please:"
).mkString
def sign(file: File): File = {
//http://stackoverflow.com/questions/16662408/correct-way-to-sign-and-verify-signature-using-bouncycastle
val statusCode =
new ProcessBuilder( "gpg", "--batch", "--yes", "-a", "-b", "-s", "--passphrase", passphrase, file.toString )
.inheritIO.start.waitFor
if( 0 != statusCode ) throw new Exception("gpg exited with status code " ++ statusCode.toString)
file ++ ".asc"
}
//def requiredForPom[T](name: String): T = throw new Exception(s"You need to override `def $name` in order to generate a valid pom.")
def pom(
groupId: String,
artifactId: String,
version: String,
scalaMajorVersion: String,
name: String,
description: String,
url: URL,
developers: Seq[Developer],
licenses: Seq[License],
scmUrl: String, // seems like invalid URLs are used here in pom files
scmConnection: String,
inceptionYear: Int,
organization: Option[Organization],
dependencies: Seq[Dependency],
jarTarget: File
): File = {
val xml =
<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0">
<modelVersion>4.0.0</modelVersion>
<groupId>{groupId}</groupId>
<artifactId>{artifactId ++ "_" ++ scalaMajorVersion}</artifactId>
<version>{version}</version>
<packaging>jar</packaging>
<name>{name}</name>
<description>{description}</description>
<url>{url}</url>
<licenses>
{licenses.map{ license =>
<license>
<name>{license.name}</name>
<url>{license.url}</url>
<distribution>repo</distribution>
</license>
}}
</licenses>
<developers>
{developers.map{ developer =>
<developer>
<id>{developer.id}</id>
<name>{developer.name}</name>
<timezone>{developer.timezone}</timezone>
<url>{developer.url}</url>
</developer>
}}
</developers>
<scm>
<url>{scmUrl}</url>
<connection>{scmConnection}</connection>
</scm>
<inceptionYear>{inceptionYear}</inceptionYear>
{organization.map{ org =>
<organization>
<name>{org.name}</name>
{org.url.map( url => <url>url</url> )}
</organization>
}}
<dependencies>
{
dependencies.map{
case d:ArtifactInfo =>
<dependency>
<groupId>{d.groupId}</groupId>
<artifactId>{d.artifactId}</artifactId>
<version>{d.version}</version>
</dependency>
}
}
</dependencies>
</project>
// FIXME: do not build this file name including scalaMajorVersion in multiple places
val path = jarTarget.toString ++ ( "/" ++ artifactId++ "_" ++ scalaMajorVersion ++ "-" ++ version ++ ".pom" )
val file = new File(path)
write(file, "<?xml version='1.0' encoding='UTF-8'?>\n" ++ xml.toString)
}
def concurrently[T,R]( concurrencyEnabled: Boolean )( items: Seq[T] )( projection: T => R ): Seq[R] = {
if(concurrencyEnabled) items.par.map(projection).seq
else items.map(projection)
}
def publishUnsigned( sourceFiles: Seq[File], artifacts: Seq[File], url: URL, credentials: String ): Unit = {
if(sourceFiles.nonEmpty){
publish( artifacts, url, credentials )
}
}
def publishSigned( sourceFiles: Seq[File], artifacts: Seq[File], url: URL, credentials: String ): Unit = {
// TODO: make concurrency configurable here
if(sourceFiles.nonEmpty){
publish( artifacts ++ artifacts.map(sign), url, credentials )
}
}
private def publish(artifacts: Seq[File], url: URL, credentials: String): Unit = {
val files = artifacts.map(nameAndContents)
lazy val checksums = files.flatMap{
case (name, content) => Seq(
name++".md5" -> md5(content).toArray.map(_.toByte),
name++".sha1" -> sha1(content).toArray.map(_.toByte)
)
}
val all = (files ++ checksums)
uploadAll(url, all, credentials)
}
def uploadAll(url: URL, nameAndContents: Seq[(String, Array[Byte])], credentials: String ): Unit =
nameAndContents.map{ case(name, content) => upload(name, content, url, credentials ) }
def upload(fileName: String, fileContents: Array[Byte], baseUrl: URL, credentials: String): Unit = {
import java.net._
import java.io._
val url = baseUrl ++ fileName
System.err.println(blue("uploading ") ++ url.toString)
val httpCon = url.openConnection.asInstanceOf[HttpURLConnection]
httpCon.setDoOutput(true)
httpCon.setRequestMethod("PUT")
val encoding = new sun.misc.BASE64Encoder().encode(credentials.getBytes)
httpCon.setRequestProperty("Authorization", "Basic " ++ encoding)
httpCon.setRequestProperty("Content-Type", "application/binary")
httpCon.getOutputStream.write(
fileContents
)
httpCon.getInputStream
}
// code for continuous compile
def watch(files: Seq[File])(action: PartialFunction[File, Unit]): Unit = {
import com.barbarysoftware.watchservice._
import scala.collection.JavaConversions._
val watcher = WatchService.newWatchService
val realFiles = files.map(realpath)
realFiles.map{
// WatchService can only watch folders
case file if file.isFile => dirname(file)
case file => file
}.distinct.map{ file =>
val watchableFile = new WatchableFile(file)
val key = watchableFile.register(
watcher,
StandardWatchEventKind.ENTRY_CREATE,
StandardWatchEventKind.ENTRY_DELETE,
StandardWatchEventKind.ENTRY_MODIFY
)
}
scala.util.control.Breaks.breakable{
while(true){
logger.loop("Waiting for file changes...")
logger.loop("Waiting for file changes...2")
Option(watcher.take).map{
key =>
val changedFiles = key
.pollEvents
.toVector
.filterNot(_.kind == StandardWatchEventKind.OVERFLOW)
.map(_.context.toString)
// make sure we don't react on other files changed
// in the same folder like the files we care about
.filter{ name => realFiles.exists(name startsWith _.toString) }
.map(new File(_))
changedFiles.foreach( f => logger.loop( "Changed: " ++ f.toString ) )
changedFiles.collect(action)
key.reset
}
}
}
}
}
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