[remote dev] update logic which runs the frontend process in dev launcher (RDCT-1194)

It now uses IDE-specific frontend and the module-based loader to make the behavior more similar to running from a real installation.

GitOrigin-RevId: 7fb6f910e938fe815167e7519ea495b56a4f113d

build/launch/src/com/intellij/tools/launch/ide/splitMode/IdeBackend.kt

@@ -35,7 +35,7 @@ internal sealed interface BackendLaunchResult {
 
 internal fun runIdeBackend(backendDescription: IdeBackendInEnvDescription, coroutineScope: CoroutineScope): BackendLaunchResult {
   val projectPath = backendDescription.ideBackendDescription.projectPath
-  val mainModule = backendDescription.ideBackendDescription.product.mainModule
+  val mainModule = backendDescription.ideBackendDescription.product.backendMainModule
   val paths = IdeaPathsProvider()
   val classpathCollector = classpathCollector(
     localPaths = paths,

build/launch/src/com/intellij/tools/launch/ide/splitMode/IdeConstants.kt

@@ -11,11 +11,7 @@ internal object IdeConstants {
    */
   const val JETBRAINS_CLIENT_PREFIX = "JetBrainsClient"
 
-  /**
-   * See `com.jetbrains.rdct.testFramework.launch.ProcessLauncher.GATEWAY_PLUGIN_MODULE`
-   */
-  const val INTELLIJ_CWM_GUEST_MAIN_MODULE = "intellij.platform.frontend.split.main"
-  const val INTELLIJ_IDEA_ULTIMATE_MAIN_MODULE = "intellij.idea.ultimate.main"
+  const val PLATFORM_LOADER_MODULE = "intellij.platform.runtime.loader"
   const val GATEWAY_PLUGIN_MODULE = "intellij.gateway.plugin"
 
   const val DEFAULT_CWM_PASSWORD = "qwerty123"

build/launch/src/com/intellij/tools/launch/ide/splitMode/IdeFrontend.kt

@@ -2,6 +2,7 @@ package com.intellij.tools.launch.ide.splitMode
 
 import com.intellij.openapi.application.PathManager
 import com.intellij.openapi.diagnostic.logger
+import com.intellij.platform.runtime.product.ProductMode
 import com.intellij.tools.launch.PathsProvider
 import com.intellij.tools.launch.ide.IdeDebugOptions
 import com.intellij.tools.launch.ide.IdeLaunchContext
@@ -10,6 +11,7 @@ import com.intellij.tools.launch.ide.classpathCollector
 import com.intellij.tools.launch.ide.environments.local.LocalIdeCommandLauncherFactory
 import com.intellij.tools.launch.ide.environments.local.LocalProcessLaunchResult
 import com.intellij.tools.launch.ide.environments.local.localLaunchOptions
+import com.intellij.tools.launch.ide.splitMode.dsl.Product
 import com.intellij.tools.launch.os.ProcessOutputStrategy
 import kotlinx.coroutines.CoroutineScope
 import java.io.File
@@ -19,13 +21,12 @@ data class IdeFrontendLaunchResult(
   val debugPort: Int,
 )
 
-fun runIdeFrontendLocally(frontendProcessLifespanScope: CoroutineScope): IdeFrontendLaunchResult {
+fun runIdeFrontendLocally(product: Product, frontendProcessLifespanScope: CoroutineScope): IdeFrontendLaunchResult {
   IdeFrontend.logger.info("Starting IDE Frontend")
   val paths = IdeFrontendIdeaPathsProvider()
   val classpath = classpathCollector(
     paths,
-    mainModule = IdeConstants.INTELLIJ_CWM_GUEST_MAIN_MODULE,
-    additionalRuntimeModules = listOf(IdeConstants.GATEWAY_PLUGIN_MODULE)
+    mainModule = IdeConstants.PLATFORM_LOADER_MODULE,
   )
   val debugPort = 5007
   val localProcessLaunchResult = IdeLauncher.launchCommand(
@@ -40,7 +41,13 @@ fun runIdeFrontendLocally(frontendProcessLifespanScope: CoroutineScope): IdeFron
       localPaths = paths,
       ideDebugOptions = IdeDebugOptions(debugPort, debugSuspendOnStart = true, bindToHost = ""),
       platformPrefix = IdeConstants.JETBRAINS_CLIENT_PREFIX,
+      productMode = ProductMode.FRONTEND,
       ideaArguments = listOf("thinClient", "debug://localhost:5990#newUi=true"),
+      javaArguments = listOf(
+        "-Dintellij.platform.root.module=${product.frontendRootProductModule}",
+        "-Dintellij.platform.runtime.repository.path=${paths.outputRootFolder.toPath().resolve("module-descriptors.jar")}",
+        "-D${PathManager.SYSTEM_PATHS_CUSTOMIZER}=com.intellij.platform.ide.impl.startup.multiProcess.FrontendProcessPathCustomizer",
+      ),
       environment = mapOf(
         "CWM_NO_TIMEOUTS" to "1",
         "CWM_CLIENT_PASSWORD" to IdeConstants.DEFAULT_CWM_PASSWORD,

build/launch/src/com/intellij/tools/launch/ide/splitMode/IdeLauncher.kt

@@ -22,8 +22,8 @@ private class LaunchIdeBuilderImpl : LaunchIdeBuilder {
   private lateinit var ideFrontendResult: IdeFrontendBuilderImpl.Result
   private lateinit var ideBackendInEnvDescription: IdeBackendInEnvDescription
 
-  override fun frontend(init: IdeFrontendBuilder.() -> Unit) {
-    ideFrontendResult = IdeFrontendBuilderImpl().let {
+  override fun frontend(product: Product, init: IdeFrontendBuilder.() -> Unit) {
+    ideFrontendResult = IdeFrontendBuilderImpl(product).let {
       it.init()
       it.build()
     }
@@ -61,7 +61,7 @@ private class LaunchIdeBuilderImpl : LaunchIdeBuilder {
     logger.info("Starting IDE frontend")
     val (ideFrontendLocalProcessResult, ideFrontendDebugPort) =
       withContext(CoroutineName("IDE Frontend Launcher")) {
-        runIdeFrontendLocally(ideLifespanScope)
+        runIdeFrontendLocally(ideFrontendResult.product, ideLifespanScope)
       }
     handleLocalProcessOutput(
       ideFrontendLocalProcessResult.processWrapper.processOutputInfo,
@@ -155,10 +155,10 @@ private abstract class IdeBuilderImpl : IdeBuilder {
   }
 }
 
-private class IdeFrontendBuilderImpl : IdeBuilderImpl(), IdeFrontendBuilder {
-  fun build(): Result = Result(attachDebuggerCallback)
+private class IdeFrontendBuilderImpl(private val product: Product) : IdeBuilderImpl(), IdeFrontendBuilder {
+  fun build(): Result = Result(product, attachDebuggerCallback)
 
-  data class Result(val attachDebuggerCallback: (suspend (Int) -> Unit)?)
+  data class Result(val product: Product, val attachDebuggerCallback: (suspend (Int) -> Unit)?)
 }
 
 private class DockerBuilderImpl : DockerBuilder {

build/launch/src/com/intellij/tools/launch/ide/splitMode/dsl/IdeLauncherDsl.kt

@@ -1,10 +1,9 @@
 package com.intellij.tools.launch.ide.splitMode.dsl
 
-import com.intellij.tools.launch.ide.splitMode.IdeConstants
 import java.nio.file.Path
 
 interface LaunchIdeBuilder {
-  fun frontend(init: IdeFrontendBuilder.() -> Unit)
+  fun frontend(product: Product, init: IdeFrontendBuilder.() -> Unit)
 
   fun docker(init: DockerBuilder.() -> Unit)
 
@@ -15,8 +14,12 @@ interface IdeBuilder {
   fun attachDebugger(callback: suspend (Int) -> Unit)
 }
 
-enum class Product(val mainModule: String) {
-  IDEA_ULTIMATE(mainModule = IdeConstants.INTELLIJ_IDEA_ULTIMATE_MAIN_MODULE),
+enum class Product(val backendMainModule: String,
+                   val frontendRootProductModule: String) {
+  IDEA_ULTIMATE(
+    backendMainModule = "intellij.idea.ultimate.main",
+    frontendRootProductModule = "intellij.idea.frontend"
+  ),
 }
 
 interface IdeBackendBuilder : IdeBuilder {