sbt.inc.Compile.scala Maven / Gradle / Ivy
/* sbt -- Simple Build Tool
* Copyright 2010 Mark Harrah
*/
package sbt
package inc
import xsbti.api.{ Source, SourceAPI, Compilation, OutputSetting, _internalOnly_NameHashes }
import xsbti.compile.{ DependencyChanges, Output, SingleOutput, MultipleOutput }
import xsbti.{ Position, Problem, Severity }
import Logger.{ m2o, problem }
import java.io.File
import xsbti.api.Definition
object IncrementalCompile {
def apply(sources: Set[File], entry: String => Option[File],
compile: (Set[File], DependencyChanges, xsbti.AnalysisCallback) => Unit,
previous: Analysis,
forEntry: File => Option[Analysis],
output: Output, log: Logger,
options: IncOptions): (Boolean, Analysis) =
{
val current = Stamps.initial(Stamp.lastModified, Stamp.hash, Stamp.lastModified)
val internalMap = (f: File) => previous.relations.produced(f).headOption
val externalAPI = getExternalAPI(entry, forEntry)
try {
Incremental.compile(sources, entry, previous, current, forEntry, doCompile(compile, internalMap, externalAPI, current, output, options), log, options)
} catch {
case e: xsbti.CompileCancelled =>
log.info("Compilation has been cancelled")
// in case compilation got cancelled potential partial compilation results (e.g. produced classs files) got rolled back
// and we can report back as there was no change (false) and return a previous Analysis which is still up-to-date
(false, previous)
}
}
def doCompile(compile: (Set[File], DependencyChanges, xsbti.AnalysisCallback) => Unit, internalMap: File => Option[File], externalAPI: (File, String) => Option[Source], current: ReadStamps, output: Output, options: IncOptions) =
(srcs: Set[File], changes: DependencyChanges) => {
val callback = new AnalysisCallback(internalMap, externalAPI, current, output, options)
compile(srcs, changes, callback)
callback.get
}
def getExternalAPI(entry: String => Option[File], forEntry: File => Option[Analysis]): (File, String) => Option[Source] =
(file: File, className: String) =>
entry(className) flatMap { defines =>
if (file != Locate.resolve(defines, className))
None
else
forEntry(defines) flatMap { analysis =>
analysis.relations.definesClass(className).headOption flatMap { src =>
analysis.apis.internal get src
}
}
}
}
private final class AnalysisCallback(internalMap: File => Option[File], externalAPI: (File, String) => Option[Source], current: ReadStamps, output: Output, options: IncOptions) extends xsbti.AnalysisCallback {
val compilation = {
val outputSettings = output match {
case single: SingleOutput => Array(new OutputSetting("/", single.outputDirectory.getAbsolutePath))
case multi: MultipleOutput =>
multi.outputGroups.map(out => new OutputSetting(out.sourceDirectory.getAbsolutePath, out.outputDirectory.getAbsolutePath)).toArray
}
new Compilation(System.currentTimeMillis, outputSettings)
}
override def toString = (List("APIs", "Binary deps", "Products", "Source deps") zip List(apis, binaryDeps, classes, sourceDeps)).map { case (label, map) => label + "\n\t" + map.mkString("\n\t") }.mkString("\n")
import collection.mutable.{ HashMap, HashSet, ListBuffer, Map, Set }
private[this] val apis = new HashMap[File, (Int, SourceAPI)]
private[this] val usedNames = new HashMap[File, Set[String]]
private[this] val publicNameHashes = new HashMap[File, _internalOnly_NameHashes]
private[this] val unreporteds = new HashMap[File, ListBuffer[Problem]]
private[this] val reporteds = new HashMap[File, ListBuffer[Problem]]
private[this] val binaryDeps = new HashMap[File, Set[File]]
// source file to set of generated (class file, class name)
private[this] val classes = new HashMap[File, Set[(File, String)]]
// generated class file to its source file
private[this] val classToSource = new HashMap[File, File]
// all internal source depenencies, including direct and inherited
private[this] val sourceDeps = new HashMap[File, Set[File]]
// inherited internal source dependencies
private[this] val inheritedSourceDeps = new HashMap[File, Set[File]]
// external source dependencies:
// (internal source, external source depended on, API of external dependency, true if an inheritance dependency)
private[this] val extSrcDeps = new ListBuffer[(File, String, Source, Boolean)]
private[this] val binaryClassName = new HashMap[File, String]
// source files containing a macro def.
private[this] val macroSources = Set[File]()
private def add[A, B](map: Map[A, Set[B]], a: A, b: B): Unit =
map.getOrElseUpdate(a, new HashSet[B]) += b
def problem(category: String, pos: Position, msg: String, severity: Severity, reported: Boolean): Unit =
{
for (source <- m2o(pos.sourceFile)) {
val map = if (reported) reporteds else unreporteds
map.getOrElseUpdate(source, ListBuffer.empty) += Logger.problem(category, pos, msg, severity)
}
}
def sourceDependency(dependsOn: File, source: File, inherited: Boolean) =
{
add(sourceDeps, source, dependsOn)
if (inherited) add(inheritedSourceDeps, source, dependsOn)
}
def externalBinaryDependency(binary: File, className: String, source: File, inherited: Boolean) {
binaryClassName.put(binary, className)
add(binaryDeps, source, binary)
}
def externalSourceDependency(t4: (File, String, Source, Boolean)) = extSrcDeps += t4
def binaryDependency(classFile: File, name: String, source: File, inherited: Boolean) =
internalMap(classFile) match {
case Some(dependsOn) =>
// dependency is a product of a source not included in this compilation
sourceDependency(dependsOn, source, inherited)
case None =>
classToSource.get(classFile) match {
case Some(dependsOn) =>
// dependency is a product of a source in this compilation step,
// but not in the same compiler run (as in javac v. scalac)
sourceDependency(dependsOn, source, inherited)
case None =>
externalDependency(classFile, name, source, inherited)
}
}
private[this] def externalDependency(classFile: File, name: String, source: File, inherited: Boolean): Unit =
externalAPI(classFile, name) match {
case Some(api) =>
// dependency is a product of a source in another project
externalSourceDependency((source, name, api, inherited))
case None =>
// dependency is some other binary on the classpath
externalBinaryDependency(classFile, name, source, inherited)
}
def generatedClass(source: File, module: File, name: String) =
{
add(classes, source, (module, name))
classToSource.put(module, source)
}
// empty value used when name hashing algorithm is disabled
private val emptyNameHashes = new xsbti.api._internalOnly_NameHashes(Array.empty, Array.empty)
def api(sourceFile: File, source: SourceAPI) {
import xsbt.api.{ APIUtil, HashAPI }
if (APIUtil.isScalaSourceName(sourceFile.getName) && APIUtil.hasMacro(source)) macroSources += sourceFile
publicNameHashes(sourceFile) = {
if (nameHashing)
(new xsbt.api.NameHashing).nameHashes(source)
else
emptyNameHashes
}
val shouldMinimize = !Incremental.apiDebug(options)
val savedSource = if (shouldMinimize) APIUtil.minimize(source) else source
apis(sourceFile) = (HashAPI(source), savedSource)
}
def usedName(sourceFile: File, name: String) = add(usedNames, sourceFile, name)
def nameHashing: Boolean = options.nameHashing
def get: Analysis = addUsedNames(addCompilation(addExternals(addBinaries(addProducts(addSources(Analysis.empty(nameHashing = nameHashing)))))))
def addProducts(base: Analysis): Analysis = addAll(base, classes) { case (a, src, (prod, name)) => a.addProduct(src, prod, current product prod, name) }
def addBinaries(base: Analysis): Analysis = addAll(base, binaryDeps)((a, src, bin) => a.addBinaryDep(src, bin, binaryClassName(bin), current binary bin))
def addSources(base: Analysis): Analysis =
(base /: apis) {
case (a, (src, api)) =>
val stamp = current.internalSource(src)
val hash = stamp match { case h: Hash => h.value; case _ => new Array[Byte](0) }
// TODO store this in Relations, rather than Source.
val hasMacro: Boolean = macroSources.contains(src)
val s = new xsbti.api.Source(compilation, hash, api._2, api._1, publicNameHashes(src), hasMacro)
val info = SourceInfos.makeInfo(getOrNil(reporteds, src), getOrNil(unreporteds, src))
val direct = sourceDeps.getOrElse(src, Nil: Iterable[File])
val publicInherited = inheritedSourceDeps.getOrElse(src, Nil: Iterable[File])
a.addSource(src, s, stamp, direct, publicInherited, info)
}
def getOrNil[A, B](m: collection.Map[A, Seq[B]], a: A): Seq[B] = m.get(a).toList.flatten
def addExternals(base: Analysis): Analysis = (base /: extSrcDeps) { case (a, (source, name, api, inherited)) => a.addExternalDep(source, name, api, inherited) }
def addCompilation(base: Analysis): Analysis = base.copy(compilations = base.compilations.add(compilation))
def addUsedNames(base: Analysis): Analysis = (base /: usedNames) {
case (a, (src, names)) =>
(a /: names) { case (a, name) => a.copy(relations = a.relations.addUsedName(src, name)) }
}
def addAll[A, B](base: Analysis, m: Map[A, Set[B]])(f: (Analysis, A, B) => Analysis): Analysis =
(base /: m) {
case (outer, (a, bs)) =>
(outer /: bs) { (inner, b) =>
f(inner, a, b)
}
}
}
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