add new check in validateProjectsToPublishTask (#5204)

* add new check in validateProjectsToPublishTask

* ktfmt

---------

Co-authored-by: David Motsonashvili <[email protected]>

Author: davidmotson

buildSrc/src/main/java/com/google/firebase/gradle/plugins/PublishingPlugin.kt

@@ -14,6 +14,7 @@
 
 package com.google.firebase.gradle.plugins
 
+import com.google.common.collect.Sets
 import com.google.firebase.gradle.bomgenerator.BomGeneratorTask
 import com.google.firebase.gradle.plugins.PublishingPlugin.Companion.BUILD_BOM_ZIP_TASK
 import com.google.firebase.gradle.plugins.PublishingPlugin.Companion.BUILD_KOTLINDOC_ZIP_TASK
@@ -79,7 +80,7 @@ abstract class PublishingPlugin : Plugin<Project> {
       val checkHeadDependencies =
         registerCheckHeadDependenciesTask(project, releasingFirebaseLibraries)
       val validateProjectsToPublish =
-        registerValidateProjectsToPublishTask(project, releasingProjects)
+        registerValidateProjectsToPublishTask(project, releasingFirebaseLibraries)
       val publishReleasingLibrariesToBuildDir =
         registerPublishReleasingLibrariesToBuildDirTask(project, releasingProjects)
       val generateKotlindocsForRelease =
@@ -275,17 +276,26 @@ abstract class PublishingPlugin : Plugin<Project> {
   // TODO(b/280320915): Remove doLast when Gradle + IDEA fix task configuration avoidance bug
   private fun registerValidateProjectsToPublishTask(
     project: Project,
-    releasingProjects: List<Project>
+    releasinglibraries: List<FirebaseLibraryExtension>
   ) =
     project.tasks.register(VALIDATE_PROJECTS_TO_PUBLISH_TASK) {
       doLast {
-        if (releasingProjects.isEmpty()) {
+        if (releasinglibraries.isEmpty()) {
           throw GradleException(
             "No projects to release. " +
               "Ensure you've specified the projectsToPublish parameter, " +
               "or have a valid $RELEASE_CONFIG_FILE file at the root directory."
           )
         }
+        val libraryGroupProjects =
+          releasinglibraries.flatMap { it.projectsToRelease }.filterNotNull().toSet()
+        val releasingProjects = releasinglibraries.mapNotNull { it.project }.toSet()
+        if (!libraryGroupProjects.equals(releasingProjects)) {
+          throw GradleException(
+            "Some libraries in library groups are not in the release: " +
+              Sets.difference(libraryGroupProjects, releasingProjects).map { it.displayName }
+          )
+        }
       }
     }