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package com.replaymod.gradle.remap
import com.replaymod.gradle.remap.legacy.LegacyMapping
import org.cadixdev.lorenz.MappingSet
import org.jetbrains.kotlin.cli.common.CLIConfigurationKeys
import org.jetbrains.kotlin.cli.common.config.ContentRoot
import org.jetbrains.kotlin.cli.common.messages.MessageCollector
import org.jetbrains.kotlin.cli.common.messages.MessageRenderer
import org.jetbrains.kotlin.cli.common.messages.PrintingMessageCollector
import org.jetbrains.kotlin.cli.jvm.compiler.EnvironmentConfigFiles
import org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment
import org.jetbrains.kotlin.cli.jvm.config.JavaSourceRoot
import org.jetbrains.kotlin.cli.jvm.config.JvmClasspathRoot
import org.jetbrains.kotlin.cli.jvm.modules.CoreJrtFileSystem
import org.jetbrains.kotlin.com.intellij.codeInsight.CustomExceptionHandler
import org.jetbrains.kotlin.com.intellij.mock.MockProject
import org.jetbrains.kotlin.com.intellij.openapi.Disposable
import org.jetbrains.kotlin.com.intellij.openapi.extensions.ExtensionPoint
import org.jetbrains.kotlin.com.intellij.openapi.extensions.Extensions
import org.jetbrains.kotlin.com.intellij.openapi.util.Disposer
import org.jetbrains.kotlin.com.intellij.openapi.vfs.StandardFileSystems
import org.jetbrains.kotlin.com.intellij.openapi.vfs.VirtualFileManager
import org.jetbrains.kotlin.com.intellij.openapi.vfs.local.CoreLocalFileSystem
import org.jetbrains.kotlin.com.intellij.psi.PsiManager
import org.jetbrains.kotlin.config.CommonConfigurationKeys
import org.jetbrains.kotlin.config.CompilerConfiguration
import org.jetbrains.kotlin.config.JVMConfigurationKeys
import org.jetbrains.kotlin.psi.KtFile
import org.jetbrains.kotlin.utils.PathUtil
import java.io.BufferedReader
import java.io.File
import java.io.IOException
import java.io.InputStreamReader
import java.lang.Exception
import java.nio.charset.StandardCharsets
import java.nio.file.Files
import java.nio.file.Path
import java.nio.file.StandardOpenOption
import java.util.*
import kotlin.system.exitProcess
class Transformer(private val map: MappingSet) {
var classpath: Array<String>? = null
var remappedClasspath: Array<String>? = null
var jdkHome: File? = null
var remappedJdkHome: File? = null
var patternAnnotation: String? = null
var manageImports = false
@Throws(IOException::class)
fun remap(sources: Map<String, String>): Map<String, Pair<String, List<Pair<Int, String>>>> =
remap(sources, emptyMap())
@Throws(IOException::class)
fun remap(sources: Map<String, String>, processedSources: Map<String, String>): Map<String, Pair<String, List<Pair<Int, String>>>> {
val tmpDir = Files.createTempDirectory("remap")
val processedTmpDir = Files.createTempDirectory("remap-processed")
val disposable = Disposer.newDisposable()
try {
for ((unitName, source) in sources) {
val path = tmpDir.resolve(unitName)
Files.createDirectories(path.parent)
Files.write(path, source.toByteArray(StandardCharsets.UTF_8), StandardOpenOption.CREATE)
val processedSource = processedSources[unitName] ?: source
val processedPath = processedTmpDir.resolve(unitName)
Files.createDirectories(processedPath.parent)
Files.write(processedPath, processedSource.toByteArray(), StandardOpenOption.CREATE)
}
val config = CompilerConfiguration()
config.put(CommonConfigurationKeys.MODULE_NAME, "main")
jdkHome?.let {config.setupJdk(it) }
config.add<ContentRoot>(CLIConfigurationKeys.CONTENT_ROOTS, JavaSourceRoot(tmpDir.toFile(), ""))
val kotlinSourceRoot = createSourceRoot(tmpDir, false)
config.add<ContentRoot>(CLIConfigurationKeys.CONTENT_ROOTS, kotlinSourceRoot)
config.addAll<ContentRoot>(CLIConfigurationKeys.CONTENT_ROOTS, classpath!!.map { JvmClasspathRoot(File(it)) })
config.put<MessageCollector>(CLIConfigurationKeys.MESSAGE_COLLECTOR_KEY, PrintingMessageCollector(System.err, MessageRenderer.GRADLE_STYLE, true))
// Our PsiMapper only works with the PSI tree elements, not with the faster (but kotlin-specific) classes
config.put(JVMConfigurationKeys.USE_PSI_CLASS_FILES_READING, true)
val environment = KotlinCoreEnvironment.createForProduction(
disposable,
config,
EnvironmentConfigFiles.JVM_CONFIG_FILES
)
val rootArea = Extensions.getRootArea()
synchronized(rootArea) {
if (!rootArea.hasExtensionPoint(CustomExceptionHandler.KEY)) {
rootArea.registerExtensionPoint(CustomExceptionHandler.KEY.name, CustomExceptionHandler::class.java.name, ExtensionPoint.Kind.INTERFACE)
}
}
val project = environment.project as MockProject
val psiManager = PsiManager.getInstance(project)
val vfs = VirtualFileManager.getInstance().getFileSystem(StandardFileSystems.FILE_PROTOCOL) as CoreLocalFileSystem
val virtualFiles = sources.mapValues { vfs.findFileByIoFile(tmpDir.resolve(it.key).toFile())!! }
val psiFiles = virtualFiles.mapValues { psiManager.findFile(it.value)!! }
val ktFiles = psiFiles.values.filterIsInstance<KtFile>()
val analysis = analyze(environment, ktFiles)
val remappedEnv = remappedClasspath?.let {
setupRemappedProject(disposable, it, processedTmpDir)
}
val patterns = patternAnnotation?.let { annotationFQN ->
val patterns = PsiPatterns(annotationFQN)
val annotationName = annotationFQN.substring(annotationFQN.lastIndexOf('.') + 1)
for ((unitName, source) in sources) {
if (!source.contains(annotationName)) continue
try {
val patternFile = vfs.findFileByIoFile(tmpDir.resolve(unitName).toFile())!!
val patternPsiFile = psiManager.findFile(patternFile)!!
patterns.read(patternPsiFile, processedSources[unitName]!!)
} catch (e: Exception) {
throw RuntimeException("Failed to read patterns from file \"$unitName\".", e)
}
}
patterns
}
val autoImports = if (manageImports && remappedEnv != null) {
AutoImports(remappedEnv)
} else {
null
}
val results = HashMap<String, Pair<String, List<Pair<Int, String>>>>()
for (name in sources.keys) {
val file = vfs.findFileByIoFile(tmpDir.resolve(name).toFile())!!
val psiFile = psiManager.findFile(file)!!
var (text, errors) = try {
PsiMapper(map, remappedEnv?.project, psiFile, analysis.bindingContext, patterns).remapFile()
} catch (e: Exception) {
throw RuntimeException("Failed to map file \"$name\".", e)
}
if (autoImports != null && "/* remap: no-manage-imports */" !in text) {
val processedText = processedSources[name] ?: text
text = autoImports.apply(psiFile, text, processedText)
}
results[name] = text to errors
}
return results
} finally {
Files.walk(tmpDir).sorted(Comparator.reverseOrder()).forEach { Files.delete(it) }
Files.walk(processedTmpDir).sorted(Comparator.reverseOrder()).forEach { Files.delete(it) }
Disposer.dispose(disposable)
}
}
private fun CompilerConfiguration.setupJdk(jdkHome: File) {
put(JVMConfigurationKeys.JDK_HOME, jdkHome)
if (!CoreJrtFileSystem.isModularJdk(jdkHome)) {
val roots = PathUtil.getJdkClassesRoots(jdkHome).map { JvmClasspathRoot(it, true) }
addAll(CLIConfigurationKeys.CONTENT_ROOTS, 0, roots)
}
}
private fun setupRemappedProject(disposable: Disposable, classpath: Array<String>, sourceRoot: Path): KotlinCoreEnvironment {
val config = CompilerConfiguration()
(remappedJdkHome ?: jdkHome)?.let { config.setupJdk(it) }
config.put(CommonConfigurationKeys.MODULE_NAME, "main")
config.addAll(CLIConfigurationKeys.CONTENT_ROOTS, classpath.map { JvmClasspathRoot(File(it)) })
if (manageImports) {
config.add(CLIConfigurationKeys.CONTENT_ROOTS, JavaSourceRoot(sourceRoot.toFile(), ""))
}
config.put(CLIConfigurationKeys.MESSAGE_COLLECTOR_KEY, PrintingMessageCollector(System.err, MessageRenderer.GRADLE_STYLE, true))
val environment = KotlinCoreEnvironment.createForProduction(
disposable,
config,
EnvironmentConfigFiles.JVM_CONFIG_FILES
)
analyze(environment, emptyList())
return environment
}
companion object {
@Throws(IOException::class)
@JvmStatic
fun main(args: Array<String>) {
val mappings: MappingSet = if (args[0].isEmpty()) {
MappingSet.create()
} else {
LegacyMapping.readMappingSet(File(args[0]).toPath(), args[1] == "true")
}
val transformer = Transformer(mappings)
val reader = BufferedReader(InputStreamReader(System.`in`))
transformer.classpath = (1..Integer.parseInt(args[2])).map { reader.readLine() }.toTypedArray()
val sources = mutableMapOf<String, String>()
while (true) {
val name = reader.readLine()
if (name == null || name.isEmpty()) {
break
}
val lines = arrayOfNulls<String>(Integer.parseInt(reader.readLine()))
for (i in lines.indices) {
lines[i] = reader.readLine()
}
val source = lines.joinToString("\n")
sources[name] = source
}
val results = transformer.remap(sources)
for (name in sources.keys) {
println(name)
val lines = results.getValue(name).first.split("\n").dropLastWhile { it.isEmpty() }.toTypedArray()
println(lines.size)
for (line in lines) {
println(line)
}
}
if (results.any { it.value.second.isNotEmpty() }) {
exitProcess(1)
}
}
}
}
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