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/* sbt -- Simple Build Tool
* Copyright 2011 Mark Harrah
*/
package sbt
import java.io.File
import java.net.URI
import Types.some
final case class Scope(project: ScopeAxis[Reference], config: ScopeAxis[ConfigKey], task: ScopeAxis[AttributeKey[_]], extra: ScopeAxis[AttributeMap])
{
def in(project: Reference, config: ConfigKey): Scope = copy(project = Select(project), config = Select(config))
def in(config: ConfigKey, task: AttributeKey[_]): Scope = copy(config = Select(config), task = Select(task))
def in(project: Reference, task: AttributeKey[_]): Scope = copy(project = Select(project), task = Select(task))
def in(project: Reference, config: ConfigKey, task: AttributeKey[_]): Scope = copy(project = Select(project), config = Select(config), task = Select(task))
def in(project: Reference): Scope = copy(project = Select(project))
def in(config: ConfigKey): Scope = copy(config = Select(config))
def in(task: AttributeKey[_]): Scope = copy(task = Select(task))
}
object Scope
{
val ThisScope = Scope(This, This, This, This)
val GlobalScope = Scope(Global, Global, Global, Global)
def resolveScope(thisScope: Scope, current: URI, rootProject: URI => String): Scope => Scope =
resolveProject(current, rootProject) compose replaceThis(thisScope)
def resolveBuildScope(thisScope: Scope, current: URI): Scope => Scope =
buildResolve(current) compose replaceThis(thisScope)
def replaceThis(thisScope: Scope): Scope => Scope = (scope: Scope) =>
Scope(subThis(thisScope.project, scope.project), subThis(thisScope.config, scope.config), subThis(thisScope.task, scope.task), subThis(thisScope.extra, scope.extra))
def subThis[T](sub: ScopeAxis[T], into: ScopeAxis[T]): ScopeAxis[T] =
if(into == This) sub else into
def fillTaskAxis(scope: Scope, key: AttributeKey[_]): Scope =
scope.task match
{
case _: Select[_] => scope
case _ => scope.copy(task = Select(key))
}
def mapReference(f: Reference => Reference): Scope => Scope =
{
case Scope(Select(ref), a,b,c) => Scope(Select(f(ref)), a,b,c)
case x => x
}
def resolveProject(uri: URI, rootProject: URI => String): Scope => Scope =
mapReference(ref => resolveReference(uri, rootProject, ref))
def buildResolve(uri: URI): Scope => Scope =
mapReference(ref => resolveBuildOnly(uri, ref))
def resolveBuildOnly(current: URI, ref: Reference): Reference =
ref match
{
case br: BuildReference => resolveBuild(current, br)
case pr: ProjectReference => resolveProjectBuild(current, pr)
}
def resolveBuild(current: URI, ref: BuildReference): BuildReference =
ref match
{
case ThisBuild => BuildRef(current)
case BuildRef(uri) => BuildRef(resolveBuild(current, uri))
}
def resolveProjectBuild(current: URI, ref: ProjectReference): ProjectReference =
ref match
{
case ThisProject => RootProject(current)
case LocalRootProject => RootProject(current)
case LocalProject(id) => ProjectRef(current, id)
case RootProject(uri) => RootProject(resolveBuild(current, uri))
case ProjectRef(uri, id) => ProjectRef(resolveBuild(current, uri), id)
}
def resolveBuild(current: URI, uri: URI): URI =
if(!uri.isAbsolute && current.isOpaque && uri.getSchemeSpecificPart == ".")
current // this handles the shortcut of referring to the current build using "."
else
IO.directoryURI(current resolve uri)
def resolveReference(current: URI, rootProject: URI => String, ref: Reference): ResolvedReference =
ref match
{
case br: BuildReference => resolveBuildRef(current, br)
case pr: ProjectReference => resolveProjectRef(current, rootProject, pr)
}
def resolveProjectRef(current: URI, rootProject: URI => String, ref: ProjectReference): ProjectRef =
ref match
{
case ThisProject | LocalRootProject => ProjectRef(current, rootProject(current))
case LocalProject(id) => ProjectRef(current, id)
case RootProject(uri) => val res = resolveBuild(current, uri); ProjectRef(res, rootProject(res))
case ProjectRef(uri, id) => ProjectRef(resolveBuild(current, uri), id)
}
def resolveBuildRef(current: URI, ref: BuildReference): BuildRef =
ref match
{
case ThisBuild => BuildRef(current)
case BuildRef(uri) => BuildRef(resolveBuild(current, uri))
}
def display(config: ConfigKey): String = config.name + ":"
def display(scope: Scope, sep: String): String = displayMasked(scope, sep, showProject, ScopeMask())
def displayMasked(scope: Scope, sep: String, mask: ScopeMask): String = displayMasked(scope, sep, showProject, mask)
def display(scope: Scope, sep: String, showProject: Reference => String): String = displayMasked(scope, sep, showProject, ScopeMask())
def displayMasked(scope: Scope, sep: String, showProject: Reference => String, mask: ScopeMask): String =
{
import scope.{project, config, task, extra}
val configPrefix = config.foldStrict(display, "*:", ".:")
val taskPrefix = task.foldStrict(_.label + "::", "", ".::")
val extras = extra.foldStrict(_.entries.map( _.toString ).toList, Nil, Nil)
val postfix = if(extras.isEmpty) "" else extras.mkString("(", ", ", ")")
mask.concatShow(projectPrefix(project, showProject), configPrefix, taskPrefix, sep, postfix)
}
def equal(a: Scope, b: Scope, mask: ScopeMask): Boolean =
(!mask.project || a.project == b.project) &&
(!mask.config || a.config == b.config) &&
(!mask.task || a.task == b.task) &&
(!mask.extra || a.extra == b.extra)
def projectPrefix(project: ScopeAxis[Reference], show: Reference => String = showProject): String = project.foldStrict(show, "*/", "./")
def showProject = (ref: Reference) => Project.display(ref) + "/"
def parseScopedKey(command: String): (Scope, String) =
{
val ScopedKeyRegex(_, projectID, _, config, key) = command
val pref = if(projectID eq null) This else Select(LocalProject(projectID))
val conf = if(config eq null) This else Select(ConfigKey(config))
(Scope(pref, conf, This, This), transformTaskName(key))
}
val ScopedKeyRegex = """((\w+)\/)?((\w+)\:)?([\w\-]+)""".r
def transformTaskName(s: String) =
{
val parts = s.split("-+")
(parts.take(1) ++ parts.drop(1).map(_.capitalize)).mkString
}
// *Inherit functions should be immediate delegates and not include argument itself. Transitivity will be provided by this method
def delegates[Proj](
refs: Seq[(ProjectRef, Proj)],
configurations: Proj => Seq[ConfigKey],
resolve: Reference => ResolvedReference,
rootProject: URI => String,
projectInherit: ProjectRef => Seq[ProjectRef],
configInherit: (ResolvedReference, ConfigKey) => Seq[ConfigKey],
taskInherit: AttributeKey[_] => Seq[AttributeKey[_]],
extraInherit: (ResolvedReference, AttributeMap) => Seq[AttributeMap]): Scope => Seq[Scope] =
{
val index = delegates(refs, configurations, projectInherit, configInherit)
scope => indexedDelegates(resolve, index, rootProject, taskInherit, extraInherit)(scope)
}
def indexedDelegates(
resolve: Reference => ResolvedReference,
index: DelegateIndex,
rootProject: URI => String,
taskInherit: AttributeKey[_] => Seq[AttributeKey[_]],
extraInherit: (ResolvedReference, AttributeMap) => Seq[AttributeMap])(rawScope: Scope): Seq[Scope] =
{
val scope = Scope.replaceThis(GlobalScope)(rawScope)
def nonProjectScopes(resolvedProj: ResolvedReference)(px: ScopeAxis[ResolvedReference]) =
{
val p = px.toOption getOrElse resolvedProj
val configProj = p match { case pr: ProjectRef => pr; case br: BuildRef => ProjectRef(br.build, rootProject(br.build)) }
val cLin = scope.config match { case Select(conf) => index.config(configProj, conf); case _ => withGlobalAxis(scope.config) }
val tLin = scope.task match { case t @ Select(task) => linearize(t)(taskInherit); case _ => withGlobalAxis(scope.task) }
val eLin = withGlobalAxis(scope.extra)
for(c <- cLin; t <- tLin; e <- eLin) yield Scope(px, c, t, e)
}
scope.project match
{
case Global | This => globalProjectDelegates(scope)
case Select(proj) =>
val resolvedProj = resolve(proj)
val projAxes: Seq[ScopeAxis[ResolvedReference]] =
resolvedProj match
{
case pr: ProjectRef => index.project(pr)
case br: BuildRef => Select(br) :: Global :: Nil
}
projAxes flatMap nonProjectScopes(resolvedProj)
}
}
def withGlobalAxis[T](base: ScopeAxis[T]): Seq[ScopeAxis[T]] = if(base.isSelect) base :: Global :: Nil else Global :: Nil
def withGlobalScope(base: Scope): Seq[Scope] = if(base == GlobalScope) GlobalScope :: Nil else base :: GlobalScope :: Nil
def withRawBuilds(ps: Seq[ScopeAxis[ProjectRef]]): Seq[ScopeAxis[ResolvedReference]] =
ps ++ (ps flatMap rawBuild).distinct :+ Global
def rawBuild(ps: ScopeAxis[ProjectRef]): Seq[ScopeAxis[BuildRef]] = ps match { case Select(ref) => Select(BuildRef(ref.build)) :: Nil; case _ => Nil }
def delegates[Proj](
refs: Seq[(ProjectRef, Proj)],
configurations: Proj => Seq[ConfigKey],
projectInherit: ProjectRef => Seq[ProjectRef],
configInherit: (ResolvedReference, ConfigKey) => Seq[ConfigKey]): DelegateIndex =
{
val pDelegates = refs map { case (ref, project) =>
(ref, delegateIndex(ref, configurations(project))(projectInherit, configInherit) )
} toMap ;
new DelegateIndex0(pDelegates)
}
private[this] def delegateIndex(ref: ProjectRef, confs: Seq[ConfigKey])(projectInherit: ProjectRef => Seq[ProjectRef], configInherit: (ResolvedReference, ConfigKey) => Seq[ConfigKey]): ProjectDelegates =
{
val refDelegates = withRawBuilds(linearize(Select(ref), false)(projectInherit))
val configs = confs map { c => axisDelegates(configInherit, ref, c) }
new ProjectDelegates(ref, refDelegates, configs.toMap)
}
def axisDelegates[T](direct: (ResolvedReference, T) => Seq[T], ref: ResolvedReference, init: T): (T, Seq[ScopeAxis[T]]) =
( init, linearize(Select(init))(direct(ref, _)) )
def linearize[T](axis: ScopeAxis[T], appendGlobal: Boolean = true)(inherit: T => Seq[T]): Seq[ScopeAxis[T]] =
axis match
{
case Select(x) => topologicalSort[T](x, appendGlobal)(inherit)
case Global | This => if(appendGlobal) Global :: Nil else Nil
}
def topologicalSort[T](node: T, appendGlobal: Boolean)(dependencies: T => Seq[T]): Seq[ScopeAxis[T]] =
{
val o = Dag.topologicalSortUnchecked(node)(dependencies).map(Select.apply)
if(appendGlobal) o ::: Global :: Nil else o
}
def globalProjectDelegates(scope: Scope): Seq[Scope] =
if(scope == GlobalScope)
GlobalScope :: Nil
else
for( c <- withGlobalAxis(scope.config); t <- withGlobalAxis(scope.task); e <- withGlobalAxis(scope.extra) ) yield Scope(Global, c, t, e)
}
sealed trait ScopeAxis[+S] {
def foldStrict[T](f: S => T, ifGlobal: T, ifThis: T): T = fold(f, ifGlobal, ifThis)
def fold[T](f: S => T, ifGlobal: => T, ifThis: => T): T = this match {
case This => ifThis
case Global => ifGlobal
case Select(s) => f(s)
}
def toOption: Option[S] = foldStrict(some.fn, None, None)
def map[T](f: S => T): ScopeAxis[T] = foldStrict(s => Select(f(s)), Global, This)
def isSelect: Boolean = false
}
case object This extends ScopeAxis[Nothing]
case object Global extends ScopeAxis[Nothing]
final case class Select[S](s: S) extends ScopeAxis[S] {
override def isSelect = true
}
object ScopeAxis
{
implicit def scopeAxisToScope(axis: ScopeAxis[Nothing]): Scope =
Scope(axis, axis, axis, axis)
def fromOption[T](o: Option[T]): ScopeAxis[T] = o match {
case Some(v) => Select(v)
case None => Global
}
}
/** Specifies the Scope axes that should be used for an operation. `true` indicates an axis should be used. */
final case class ScopeMask(project: Boolean = true, config: Boolean = true, task: Boolean = true, extra: Boolean = true)
{
def concatShow(p: String, c: String, t: String, sep: String, x: String): String =
{
val sb = new StringBuilder
if(project) sb.append(p)
if(config) sb.append(c)
if(task) sb.append(t)
sb.append(sep)
if(extra) sb.append(x)
sb.toString
}
}
final case class ConfigKey(name: String)
object ConfigKey
{
implicit def configurationToKey(c: Configuration): ConfigKey = ConfigKey(c.name)
}
sealed trait DelegateIndex
{
def project(ref: ProjectRef): Seq[ScopeAxis[ResolvedReference]]
def config(ref: ProjectRef, conf: ConfigKey): Seq[ScopeAxis[ConfigKey]]
// def task(ref: ProjectRef, task: ScopedKey[_]): Seq[ScopeAxis[ScopedKey[_]]]
// def extra(ref: ProjectRef, e: AttributeMap): Seq[ScopeAxis[AttributeMap]]
}
private final class DelegateIndex0(refs: Map[ProjectRef, ProjectDelegates]) extends DelegateIndex
{
def project(ref: ProjectRef): Seq[ScopeAxis[ResolvedReference]] = refs.get(ref) match { case Some(pd) => pd.refs; case None => Nil }
def config(ref: ProjectRef, conf: ConfigKey): Seq[ScopeAxis[ConfigKey]] =
refs.get(ref) match {
case Some(pd) => pd.confs.get(conf) match { case Some(cs) => cs; case None => Select(conf) :: Global :: Nil }
case None => Select(conf) :: Global :: Nil
}
}
private final class ProjectDelegates(val ref: ProjectRef, val refs: Seq[ScopeAxis[ResolvedReference]], val confs: Map[ConfigKey, Seq[ScopeAxis[ConfigKey]]])
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