build: Add support for aggregate code coverage results

This change adds support for aggregating code coverage results from the
different modules.

1 files changed, 33 insertions, 0 deletions

diff --git a/simulator/buildSrc/src/main/kotlin/jacoco-conventions.gradle.kts b/simulator/buildSrc/src/main/kotlin/jacoco-conventions.gradle.kts
index e0bc2ce4..d0534d4f 100644
--- a/simulator/buildSrc/src/main/kotlin/jacoco-conventions.gradle.kts
+++ b/simulator/buildSrc/src/main/kotlin/jacoco-conventions.gradle.kts
@@ -30,3 +30,36 @@ tasks.jacocoTestReport {
         html.isEnabled = true
     }
 }
+
+/* Share sources folder with other projects for aggregated JaCoCo reports */
+configurations.create("transitiveSourcesElements") {
+    isVisible = false
+    isCanBeResolved = false
+    isCanBeConsumed = true
+    extendsFrom(configurations.implementation.get())
+    attributes {
+        attribute(Usage.USAGE_ATTRIBUTE, objects.named(Usage.JAVA_RUNTIME))
+        attribute(Category.CATEGORY_ATTRIBUTE, objects.named(Category.DOCUMENTATION))
+        attribute(DocsType.DOCS_TYPE_ATTRIBUTE, objects.named("source-folders"))
+    }
+    sourceSets.main.get().java.srcDirs.forEach {
+        outgoing.artifact(it)
+    }
+}
+
+/* Share the coverage data to be aggregated for the whole product */
+configurations.create("coverageDataElements") {
+    isVisible = false
+    isCanBeResolved = false
+    isCanBeConsumed = true
+    extendsFrom(configurations.implementation.get())
+    attributes {
+        attribute(Usage.USAGE_ATTRIBUTE, objects.named(Usage.JAVA_RUNTIME))
+        attribute(Category.CATEGORY_ATTRIBUTE, objects.named(Category.DOCUMENTATION))
+        attribute(DocsType.DOCS_TYPE_ATTRIBUTE, objects.named("jacoco-coverage-data"))
+    }
+    // This will cause the test task to run if the coverage data is requested by the aggregation task
+    outgoing.artifact(tasks.test.map { task ->
+        task.extensions.getByType<JacocoTaskExtension>().destinationFile!!
+    })
+}