[external-system] IJPL-170: Also wait until startup activities are invoked during the project open

GitOrigin-RevId: 7c88385e4401d1a5d7592e02303f30f9c011bce6

platform/external-system-api/src/com/intellij/openapi/externalSystem/util/ExternalSystemInProgressService.kt

@@ -1,9 +1,33 @@
 // Copyright 2000-2023 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
 package com.intellij.openapi.externalSystem.util
 
+import com.intellij.openapi.application.ApplicationManager
 import com.intellij.openapi.components.Service
 import com.intellij.openapi.observable.AbstractInProgressService
 import kotlinx.coroutines.CoroutineScope
 
 @Service(Service.Level.PROJECT)
-class ExternalSystemInProgressService(scope: CoroutineScope) : AbstractInProgressService(scope)
+class ExternalSystemInProgressService(scope: CoroutineScope) : AbstractInProgressService(scope) {
+  @Volatile
+  private var isUnlinkedActivityStarted: Boolean = false
+  @Volatile
+  private var isExternalProjectActivityStarted: Boolean = false
+
+  fun unlinkedActivityStarted() {
+    isUnlinkedActivityStarted = true
+  }
+
+  fun externalSystemActivityStarted() {
+    isExternalProjectActivityStarted = true
+  }
+
+  private fun isUnlinkedActivityPending() : Boolean{
+    return !ApplicationManager.getApplication().isUnitTestMode && !isUnlinkedActivityStarted
+  }
+
+  override fun isInProgress(): Boolean {
+    return super.isInProgress() ||
+           isUnlinkedActivityPending() ||
+           !isExternalProjectActivityStarted
+  }
+}

platform/external-system-impl/src/com/intellij/openapi/externalSystem/autolink/UnlinkedProjectStartupActivity.kt

@@ -45,6 +45,7 @@ class UnlinkedProjectStartupActivity : ProjectActivity {
 
   override suspend fun execute(project: Project) {
     project.serviceAsync<ExternalSystemInProgressService>().trackConfigurationActivity {
+      project.serviceAsync<ExternalSystemInProgressService>().unlinkedActivityStarted()
       loadProjectIfSingleUnlinkedProjectFound(project)
       val projectRoots = installProjectRootsScanner(project)
       installUnlinkedProjectScanner(project, projectRoots)

platform/external-system-impl/src/com/intellij/openapi/externalSystem/service/ExternalSystemStartupActivity.kt

@@ -23,6 +23,7 @@ import kotlinx.coroutines.withContext
 internal class ExternalSystemStartupActivity : ProjectActivity {
 
   override suspend fun execute(project: Project) = project.serviceAsync<ExternalSystemInProgressService>().trackConfigurationActivity {
+    project.serviceAsync<ExternalSystemInProgressService>().externalSystemActivityStarted()
     val esProjectsManager = readAction {
       ExternalProjectsManagerImpl.getInstance(project)
     }

platform/platform-api/src/com/intellij/openapi/observable/AbstractInProgressService.kt

@@ -59,7 +59,7 @@ abstract class AbstractInProgressService(private val scope: CoroutineScope) {
     }
   }
 
-  fun isInProgress(): Boolean {
+  open fun isInProgress(): Boolean {
     return inProgress != 0
   }
 }