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// Copyright 2000-2021 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
package org.jetbrains.kotlin.jps.build
import org.jetbrains.jps.incremental.ModuleBuildTarget
import org.jetbrains.kotlin.config.ApiVersion
import org.jetbrains.kotlin.config.LanguageVersion
import org.jetbrains.kotlin.config.VersionView
import org.jetbrains.kotlin.jps.incremental.CacheStatus
import org.jetbrains.kotlin.jps.incremental.JpsIncrementalCache
import org.jetbrains.kotlin.jps.incremental.getKotlinCache
import org.jetbrains.kotlin.jps.model.kotlinCompilerArguments
import org.jetbrains.kotlin.jps.targets.KotlinModuleBuildTarget
import org.jetbrains.kotlin.utils.keysToMapExceptNulls
import java.nio.file.Path
import kotlin.io.path.writeText
/**
* Chunk of cyclically dependent [KotlinModuleBuildTarget]s
*/
class KotlinChunk internal constructor(val context: KotlinCompileContext, val targets: List<KotlinModuleBuildTarget<*>>) {
val containsTests = targets.any { it.isTests }
lateinit var dependencies: List<KotlinModuleBuildTarget.Dependency>
// Should be initialized only in KotlinChunk.calculateChunkDependencies
internal set
lateinit var dependent: List<KotlinModuleBuildTarget.Dependency>
// Should be initialized only in KotlinChunk.calculateChunkDependencies
internal set
// used only during dependency calculation
internal var _dependent: MutableSet<KotlinModuleBuildTarget.Dependency>? = mutableSetOf()
val representativeTarget
get() = targets.first()
val presentableModulesToCompilersList: String
get() = targets.joinToString { "${it.module.name} (${it.globalLookupCacheId})" }
val haveSameCompiler = targets.all { it.javaClass == representativeTarget.javaClass }
private val defaultLanguageVersion = VersionView.RELEASED_VERSION
val compilerArguments by lazy {
representativeTarget.jpsModuleBuildTarget.module.kotlinCompilerArguments.also {
it.reportOutputFiles = true
// Always report the version to help diagnosing user issues if they submit the compiler output
it.version = true
if (it.languageVersion == null) it.languageVersion = defaultLanguageVersion.versionString
}
}
val langVersion by lazy {
compilerArguments.languageVersion?.let { LanguageVersion.fromVersionString(it) }
?: defaultLanguageVersion // use default language version when version string is invalid (todo: report warning?)
}
val apiVersion by lazy {
compilerArguments.apiVersion?.let { ApiVersion.parse(it) }
?: ApiVersion.createByLanguageVersion(langVersion) // todo: report version parse error?
}
val isEnabled: Boolean by lazy {
representativeTarget.isEnabled(compilerArguments)
}
fun shouldRebuild(): Boolean {
val buildMetaInfo = representativeTarget.buildMetaInfoFactory.create(compilerArguments)
targets.forEach { target ->
if (target.isVersionChanged(this, buildMetaInfo)) {
KotlinBuilder.LOG.info("$target version changed, rebuilding $this")
return true
}
if (target.initialLocalCacheAttributesDiff.status == CacheStatus.INVALID) {
context.testingLogger?.invalidOrUnusedCache(this, null, target.initialLocalCacheAttributesDiff)
KotlinBuilder.LOG.info("$target cache is invalid ${target.initialLocalCacheAttributesDiff}, rebuilding $this")
return true
}
}
return false
}
fun buildMetaInfoFile(target: ModuleBuildTarget): Path = context.dataPaths
.getTargetDataRoot(target)
.toPath()
.resolve(representativeTarget.buildMetaInfoFileName)
fun saveVersions() {
context.ensureLookupsCacheAttributesSaved()
targets.forEach {
it.initialLocalCacheAttributesDiff.manager.writeVersion()
}
val serializedMetaInfo = representativeTarget.buildMetaInfoFactory.serializeToString(compilerArguments)
targets.forEach {
buildMetaInfoFile(it.jpsModuleBuildTarget).writeText(serializedMetaInfo)
}
}
fun collectDependentChunksRecursivelyExportedOnly(result: MutableSet<KotlinChunk> = mutableSetOf()) {
dependent.forEach {
if (result.add(it.src.chunk)) {
if (it.exported) {
it.src.chunk.collectDependentChunksRecursivelyExportedOnly(result)
}
}
}
}
fun loadCaches(loadDependent: Boolean = true): Map<KotlinModuleBuildTarget<*>, JpsIncrementalCache> {
val dataManager = context.dataManager
val cacheByChunkTarget = targets.keysToMapExceptNulls {
dataManager.getKotlinCache(it)
}
if (loadDependent) {
addDependentCaches(cacheByChunkTarget.values)
}
return cacheByChunkTarget
}
private fun addDependentCaches(targetsCaches: Collection<JpsIncrementalCache>) {
val dependentChunks = mutableSetOf<KotlinChunk>()
collectDependentChunksRecursivelyExportedOnly(dependentChunks)
val dataManager = context.dataManager
dependentChunks.forEach { decedentChunk ->
decedentChunk.targets.forEach {
val dependentCache = dataManager.getKotlinCache(it)
if (dependentCache != null) {
for (chunkCache in targetsCaches) {
chunkCache.addJpsDependentCache(dependentCache)
}
}
}
}
}
/**
* The same as [org.jetbrains.jps.ModuleChunk.getPresentableShortName]
*/
val presentableShortName: String
get() = buildString {
if (containsTests) append("tests of ")
append(targets.first().module.name)
if (targets.size > 1) {
val andXMore = " and ${targets.size - 1} more"
val other = ", " + targets.asSequence().drop(1).joinToString()
append(if (other.length < andXMore.length) other else andXMore)
}
}
override fun toString(): String {
return "KotlinChunk<${representativeTarget.javaClass.simpleName}>" +
"(${targets.joinToString { it.jpsModuleBuildTarget.presentableName }})"
}
}
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