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package org.jetbrains.dokka
import org.jetbrains.dokka.model.DModule
import org.jetbrains.dokka.model.SourceSetCache
import org.jetbrains.dokka.model.SourceSetData
import org.jetbrains.dokka.pages.RootPageNode
import org.jetbrains.dokka.plugability.DokkaContext
import org.jetbrains.dokka.plugability.DokkaPlugin
import org.jetbrains.dokka.utilities.DokkaLogger
/**
* DokkaGenerator is the main entry point for generating documentation
* [generate] method has been split into submethods for test reasons
*/
class DokkaGenerator(
private val configuration: DokkaConfiguration,
private val logger: DokkaLogger
) {
fun generate() = timed {
val sourceSetsCache = SourceSetCache()
report("Initializing plugins")
val context = initializePlugins(configuration, logger, sourceSetsCache)
report("Creating documentation models")
val modulesFromPlatforms = createDocumentationModels(context, sourceSetsCache)
report("Transforming documentation model before merging")
val transformedDocumentationBeforeMerge = transformDocumentationModelBeforeMerge(modulesFromPlatforms, context)
report("Merging documentation models")
val documentationModel = mergeDocumentationModels(transformedDocumentationBeforeMerge, context)
report("Transforming documentation model after merging")
val transformedDocumentation = transformDocumentationModelAfterMerge(documentationModel, context)
report("Creating pages")
val pages = createPages(transformedDocumentation, context)
report("Transforming pages")
val transformedPages = transformPages(pages, context)
report("Rendering")
render(transformedPages, context)
reportAfterRendering(context)
}.dump("\n\n === TIME MEASUREMENT ===\n")
fun generateAllModulesPage() = timed {
val sourceSetsCache = SourceSetCache()
report("Initializing plugins")
val context = initializePlugins(configuration, logger, sourceSetsCache)
report("Creating all modules page")
val pages = createAllModulePage(context)
report("Transforming pages")
val transformedPages = transformAllModulesPage(pages, context)
report("Rendering")
render(transformedPages, context)
}.dump("\n\n === TIME MEASUREMENT ===\n")
fun initializePlugins(
configuration: DokkaConfiguration,
logger: DokkaLogger,
sourceSetsCache: SourceSetCache,
pluginOverrides: List<DokkaPlugin> = emptyList()
) = DokkaContext.create(configuration, logger, sourceSetsCache, pluginOverrides)
fun createDocumentationModels(
context: DokkaContext,
sourceSetsCache: SourceSetCache
) = context.configuration.passesConfigurations
.map { passConfiguration -> sourceSetsCache.getSourceSet(passConfiguration) }
.flatMap { passConfiguration -> translateSources(passConfiguration, context) }
fun transformDocumentationModelBeforeMerge(
modulesFromPlatforms: List<DModule>,
context: DokkaContext
) = context[CoreExtensions.preMergeDocumentableTransformer].fold(modulesFromPlatforms) { acc, t -> t(acc) }
fun mergeDocumentationModels(
modulesFromPlatforms: List<DModule>,
context: DokkaContext
) = context.single(CoreExtensions.documentableMerger).invoke(modulesFromPlatforms, context)
fun transformDocumentationModelAfterMerge(
documentationModel: DModule,
context: DokkaContext
) = context[CoreExtensions.documentableTransformer].fold(documentationModel) { acc, t -> t(acc, context) }
fun createPages(
transformedDocumentation: DModule,
context: DokkaContext
) = context.single(CoreExtensions.documentableToPageTranslator).invoke(transformedDocumentation)
fun createAllModulePage(
context: DokkaContext
) = context.single(CoreExtensions.allModulePageCreator).invoke()
fun transformPages(
pages: RootPageNode,
context: DokkaContext
) = context[CoreExtensions.pageTransformer].fold(pages) { acc, t -> t(acc) }
fun transformAllModulesPage(
pages: RootPageNode,
context: DokkaContext
) = context[CoreExtensions.allModulePageTransformer].fold(pages) { acc, t -> t(acc) }
fun render(
transformedPages: RootPageNode,
context: DokkaContext
) {
val renderer = context.single(CoreExtensions.renderer)
renderer.render(transformedPages)
}
fun reportAfterRendering(context: DokkaContext) {
context.unusedPoints.takeIf { it.isNotEmpty() }?.also {
logger.warn("Unused extension points found: ${it.joinToString(", ")}")
}
logger.report()
if (context.configuration.failOnWarning && (logger.warningsCount > 0 || logger.errorsCount > 0)) {
throw DokkaException(
"Failed with warningCount=${logger.warningsCount} and errorCount=${logger.errorsCount}"
)
}
}
private fun translateSources(platformData: SourceSetData, context: DokkaContext) =
context[CoreExtensions.sourceToDocumentableTranslator].map {
it.invoke(platformData, context)
}
}
private class Timer(startTime: Long, private val logger: DokkaLogger?) {
private val steps = mutableListOf("" to startTime)
fun report(name: String) {
logger?.progress(name)
steps += (name to System.currentTimeMillis())
}
fun dump(prefix: String = "") {
println(prefix)
val namePad = steps.map { it.first.length }.max() ?: 0
val timePad = steps.windowed(2).map { (p1, p2) -> p2.second - p1.second }.max()?.toString()?.length ?: 0
steps.windowed(2).forEach { (p1, p2) ->
if (p1.first.isNotBlank()) {
println("${p1.first.padStart(namePad)}: ${(p2.second - p1.second).toString().padStart(timePad)}")
}
}
}
}
private fun timed(logger: DokkaLogger? = null, block: Timer.() -> Unit): Timer =
Timer(System.currentTimeMillis(), logger).apply {
try {
block()
} finally {
report("")
}
}
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