[Gradle] Implement initial MppCompositeBuildIT

^KT-52172 Verification Pending

libraries/tools/kotlin-gradle-plugin-idea/src/testFixtures/kotlin/org/jetbrains/kotlin/gradle/idea/testFixtures/tcs/IdeaKotlinDependencyMatcher.kt

@@ -11,3 +11,9 @@ interface IdeaKotlinDependencyMatcher {
     val description: String
     fun matches(dependency: IdeaKotlinDependency): Boolean
 }
+
+fun IdeaKotlinDependencyMatcher(description: String, matches: (dependency: IdeaKotlinDependency) -> Boolean) =
+    object : IdeaKotlinDependencyMatcher {
+        override val description: String = description
+        override fun matches(dependency: IdeaKotlinDependency): Boolean = matches(dependency)
+    }

libraries/tools/kotlin-gradle-plugin-idea/src/testFixtures/kotlin/org/jetbrains/kotlin/gradle/idea/testFixtures/tcs/IdeaKotlinProjectArtifactDependencyMatcher.kt

@@ -12,6 +12,7 @@ import java.io.File
 
 internal class IdeaKotlinProjectArtifactDependencyMatcher(
     val type: IdeaKotlinSourceDependency.Type,
+    val buildId: String,
     val projectPath: String,
     val artifactFilePath: FilePathRegex
 ) : IdeaKotlinDependencyMatcher {
@@ -21,6 +22,7 @@ internal class IdeaKotlinProjectArtifactDependencyMatcher(
     override fun matches(dependency: IdeaKotlinDependency): Boolean {
         if (dependency !is IdeaKotlinProjectArtifactDependency) return false
         return dependency.type == type &&
+                dependency.coordinates.project.buildId == buildId &&
                 dependency.coordinates.project.projectPath == projectPath &&
                 artifactFilePath.matches(dependency.coordinates.artifactFile)
 

libraries/tools/kotlin-gradle-plugin-idea/src/testFixtures/kotlin/org/jetbrains/kotlin/gradle/idea/testFixtures/tcs/IdeaKotlinSourceDependencyMatcher.kt

@@ -10,6 +10,7 @@ import org.jetbrains.kotlin.gradle.idea.tcs.IdeaKotlinSourceDependency
 
 internal class IdeaKotlinSourceDependencyMatcher(
     val type: IdeaKotlinSourceDependency.Type,
+    val buildId: String,
     val projectPath: String,
     val sourceSetName: String
 ) : IdeaKotlinDependencyMatcher {
@@ -19,6 +20,7 @@ internal class IdeaKotlinSourceDependencyMatcher(
     override fun matches(dependency: IdeaKotlinDependency): Boolean {
         if (dependency !is IdeaKotlinSourceDependency) return false
         return dependency.type == type &&
+                dependency.coordinates.buildId == buildId &&
                 dependency.coordinates.projectPath == projectPath &&
                 dependency.coordinates.sourceSetName == sourceSetName
     }

libraries/tools/kotlin-gradle-plugin-idea/src/testFixtures/kotlin/org/jetbrains/kotlin/gradle/idea/testFixtures/tcs/ideaDependencyMatcherBuilders.kt

@@ -7,6 +7,9 @@ package org.jetbrains.kotlin.gradle.idea.testFixtures.tcs
 
 import org.gradle.api.Project
 import org.jetbrains.kotlin.gradle.idea.tcs.IdeaKotlinBinaryCoordinates
+import org.gradle.api.artifacts.component.BuildIdentifier
+import org.gradle.api.internal.project.ProjectInternal
+import org.gradle.internal.build.BuildState
 import org.jetbrains.kotlin.gradle.idea.tcs.IdeaKotlinDependency
 import org.jetbrains.kotlin.gradle.idea.tcs.IdeaKotlinSourceDependency
 
@@ -22,14 +25,16 @@ fun buildIdeaKotlinDependencyMatchers(notation: Any?): List<IdeaKotlinDependency
 }
 
 fun ideSourceDependency(type: IdeaKotlinSourceDependency.Type, project: Project, sourceSetName: String): IdeaKotlinDependencyMatcher {
-    return IdeaKotlinSourceDependencyMatcher(type, project.path, sourceSetName)
+    return IdeaKotlinSourceDependencyMatcher(type, project.currentBuildId().name, project.path, sourceSetName)
 }
 
 fun ideSourceDependency(type: IdeaKotlinSourceDependency.Type, path: String): IdeaKotlinDependencyMatcher {
     val segments = path.split("/")
-    val projectPath = segments.dropLast(1).joinToString("/")
+    val buildAndProjectPath = segments.dropLast(1).joinToString(":").split("::", limit = 2)
+    val buildId = if (buildAndProjectPath.size == 2) buildAndProjectPath.first() else ":"
+    val projectPath = if (buildAndProjectPath.size == 2) ":" + buildAndProjectPath.last() else buildAndProjectPath.last()
     val sourceSetName = segments.last()
-    return IdeaKotlinSourceDependencyMatcher(type, projectPath, sourceSetName)
+    return IdeaKotlinSourceDependencyMatcher(type, buildId, projectPath, sourceSetName)
 }
 
 fun regularSourceDependency(path: String) = ideSourceDependency(IdeaKotlinSourceDependency.Type.Regular, path)
@@ -42,12 +47,20 @@ fun dependsOnDependency(project: Project, sourceSetName: String) =
 fun dependsOnDependency(path: String) = ideSourceDependency(IdeaKotlinSourceDependency.Type.DependsOn, path)
 
 fun projectArtifactDependency(
-    type: IdeaKotlinSourceDependency.Type = IdeaKotlinSourceDependency.Type.Regular, projectPath: String, artifactFilePath: FilePathRegex
-): IdeaKotlinDependencyMatcher = IdeaKotlinProjectArtifactDependencyMatcher(
-    type = type,
-    projectPath = projectPath,
-    artifactFilePath = artifactFilePath
-)
+    type: IdeaKotlinSourceDependency.Type = IdeaKotlinSourceDependency.Type.Regular,
+    buildIdAndProjectPath: String, artifactFilePath: FilePathRegex
+): IdeaKotlinDependencyMatcher {
+    val slicedProjectPath = buildIdAndProjectPath.split("::", limit = 2)
+    val buildId = if (slicedProjectPath.size == 2) slicedProjectPath.first() else ":"
+    val projectPath = if (slicedProjectPath.size == 2) ":" + slicedProjectPath.last() else slicedProjectPath.last()
+
+    return IdeaKotlinProjectArtifactDependencyMatcher(
+        type = type,
+        buildId = buildId,
+        projectPath = projectPath,
+        artifactFilePath = artifactFilePath
+    )
+}
 
 fun binaryCoordinates(regex: Regex): IdeaKotlinDependencyMatcher {
     return IdeaBinaryCoordinatesMatcher(regex)
@@ -60,4 +73,8 @@ fun binaryCoordinates(literal: String): IdeaKotlinDependencyMatcher {
 fun anyDependency(): IdeaKotlinDependencyMatcher = object : IdeaKotlinDependencyMatcher {
     override val description: String get() = "any"
     override fun matches(dependency: IdeaKotlinDependency): Boolean = true
-}
+}
+
+/* Duplicated: Aks Gradle for public API? */
+private fun Project.currentBuildId(): BuildIdentifier =
+    (project as ProjectInternal).services.get(BuildState::class.java).buildIdentifier