jacoco report consolidation

build.gradle.kts

@@ -0,0 +1,32 @@
+plugins {
+    base
+    jacoco
+}
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+}
+
+val jacocoTestReport = tasks.register<JacocoReport>("jacocoTestReport") {
+    group = "Verification"
+    description = "Generates a consolidated JaCoCo report for all subprojects."
+
+    val javaSubprojects = subprojects.filter { subproject ->
+        subproject.subprojects.isEmpty() && subproject.plugins.hasPlugin("java")
+    }
+
+    dependsOn(javaSubprojects.map { it.tasks.withType<JacocoReport>() })
+
+    additionalSourceDirs.setFrom(javaSubprojects.map { it.layout.projectDirectory.dir("src/main/java") })
+    sourceDirectories.setFrom(javaSubprojects.map { it.layout.projectDirectory.dir("src/main/java") })
+    classDirectories.setFrom(javaSubprojects.map { it.layout.buildDirectory.dir("classes/java/main") })
+    executionData.setFrom(fileTree(projectDir).include("**/build/jacoco/*.exec"))
+
+    reports {
+        xml.required.set(true)
+        html.required.set(true)
+    }
+}

buildSrc/src/main/kotlin/gradle.java-common-conventions.gradle.kts

@@ -1,5 +1,6 @@
 plugins {
     java
+    jacoco
 }
 
 repositories {
@@ -34,4 +35,12 @@ java {
 
 tasks.named<Test>("test") {
     useJUnitPlatform()
+    finalizedBy("jacocoTestReport")
+}
+
+tasks.withType<JacocoReport> {
+    reports {
+        xml.required.set(true)
+        html.required.set(true)
+    }
 }

discussion/index.ndjson

@@ -1,4 +1,5 @@
-{"type":"meta","next_id":{"DSC":23,"AGD":25,"DEC":23,"PLN":46,"LSN":37,"CLSN":1}}
+{"type":"meta","next_id":{"DSC":24,"AGD":26,"DEC":24,"PLN":47,"LSN":38,"CLSN":1}}
+{"type":"discussion","id":"DSC-0024","status":"done","ticket":"jacoco-reports-consolidation","title":"JaCoCo Reports Consolidation in Gradle","created_at":"2026-04-07","updated_at":"2026-04-07","tags":["infra","gradle","jacoco","coverage","jenkins"],"agendas":[],"decisions":[],"plans":[],"lessons":[{"id":"LSN-0038","file":"discussion/lessons/DSC-0024-jacoco-reports-consolidation/LSN-0038-jacoco-reports-consolidation.md","status":"done","created_at":"2026-04-07","updated_at":"2026-04-07"}]}
 {"type":"discussion","id":"DSC-0001","status":"done","ticket":"studio-docs-import","title":"Import docs/studio into discussion-framework artifacts","created_at":"2026-03-26","updated_at":"2026-03-26","tags":["studio","migration","discussion-framework","docs-import"],"agendas":[],"decisions":[],"plans":[],"lessons":[{"id":"LSN-0001","file":"discussion/lessons/DSC-0001-studio-docs-import/LSN-0001-assets-workspace-execution-wave-legacy.md","status":"done","created_at":"2026-03-26","updated_at":"2026-03-26"},{"id":"LSN-0002","file":"discussion/lessons/DSC-0001-studio-docs-import/LSN-0002-bank-composition-editor-legacy.md","status":"done","created_at":"2026-03-26","updated_at":"2026-03-26"},{"id":"LSN-0003","file":"discussion/lessons/DSC-0001-studio-docs-import/LSN-0003-mental-model-asset-mutations-legacy.md","status":"done","created_at":"2026-03-26","updated_at":"2026-03-26"},{"id":"LSN-0004","file":"discussion/lessons/DSC-0001-studio-docs-import/LSN-0004-mental-model-assets-workspace-legacy.md","status":"done","created_at":"2026-03-26","updated_at":"2026-03-26"},{"id":"LSN-0005","file":"discussion/lessons/DSC-0001-studio-docs-import/LSN-0005-mental-model-studio-events-and-components-legacy.md","status":"done","created_at":"2026-03-26","updated_at":"2026-03-26"},{"id":"LSN-0006","file":"discussion/lessons/DSC-0001-studio-docs-import/LSN-0006-mental-model-studio-shell-legacy.md","status":"done","created_at":"2026-03-26","updated_at":"2026-03-26"},{"id":"LSN-0007","file":"discussion/lessons/DSC-0001-studio-docs-import/LSN-0007-pack-wizard-shell-legacy.md","status":"done","created_at":"2026-03-26","updated_at":"2026-03-26"},{"id":"LSN-0008","file":"discussion/lessons/DSC-0001-studio-docs-import/LSN-0008-project-scoped-state-and-activity-legacy.md","status":"done","created_at":"2026-03-26","updated_at":"2026-03-26"},{"id":"LSN-0016","file":"discussion/lessons/DSC-0001-studio-docs-import/LSN-0016-studio-docs-import-pattern.md","status":"done","created_at":"2026-03-26","updated_at":"2026-03-26"}]}
 {"type":"discussion","id":"DSC-0002","status":"open","ticket":"palette-management-in-studio","title":"Palette Management in Studio","created_at":"2026-03-26","updated_at":"2026-03-26","tags":["studio","legacy-import","palette-management","tile-bank","packer-boundary"],"agendas":[{"id":"AGD-0002","file":"AGD-0002-palette-management-in-studio.md","status":"open","created_at":"2026-03-26","updated_at":"2026-03-26"}],"decisions":[],"plans":[],"lessons":[]}
 {"type":"discussion","id":"DSC-0003","status":"done","ticket":"packer-docs-import","title":"Import docs/packer into discussion-framework artifacts","created_at":"2026-03-26","updated_at":"2026-03-26","tags":["packer","migration","discussion-framework","docs-import"],"agendas":[],"decisions":[],"plans":[],"lessons":[{"id":"LSN-0009","file":"discussion/lessons/DSC-0003-packer-docs-import/LSN-0009-mental-model-packer-legacy.md","status":"done","created_at":"2026-03-26","updated_at":"2026-03-26"},{"id":"LSN-0010","file":"discussion/lessons/DSC-0003-packer-docs-import/LSN-0010-asset-identity-and-runtime-contract-legacy.md","status":"done","created_at":"2026-03-26","updated_at":"2026-03-26"},{"id":"LSN-0011","file":"discussion/lessons/DSC-0003-packer-docs-import/LSN-0011-foundations-workspace-runtime-and-build-legacy.md","status":"done","created_at":"2026-03-26","updated_at":"2026-03-26"},{"id":"LSN-0012","file":"discussion/lessons/DSC-0003-packer-docs-import/LSN-0012-runtime-ownership-and-studio-boundary-legacy.md","status":"done","created_at":"2026-03-26","updated_at":"2026-03-26"},{"id":"LSN-0013","file":"discussion/lessons/DSC-0003-packer-docs-import/LSN-0013-metadata-convergence-and-runtime-sink-legacy.md","status":"done","created_at":"2026-03-26","updated_at":"2026-03-26"},{"id":"LSN-0014","file":"discussion/lessons/DSC-0003-packer-docs-import/LSN-0014-pack-wizard-summary-validation-and-pack-execution-legacy.md","status":"done","created_at":"2026-03-26","updated_at":"2026-03-26"},{"id":"LSN-0015","file":"discussion/lessons/DSC-0003-packer-docs-import/LSN-0015-tile-bank-packing-contract-legacy.md","status":"done","created_at":"2026-03-26","updated_at":"2026-03-26"},{"id":"LSN-0017","file":"discussion/lessons/DSC-0003-packer-docs-import/LSN-0017-packer-docs-import-pattern.md","status":"done","created_at":"2026-03-26","updated_at":"2026-03-26"}]}

discussion/lessons/DSC-0024-jacoco-reports-consolidation/LSN-0038-jacoco-reports-consolidation.md

@@ -0,0 +1,16 @@
+# LSN-0038: JaCoCo Reports Consolidation in Gradle
+
+- **Problem:** Múltiplos módulos Gradle gerando reports individuais de cobertura de código, dificultando a visão consolidada para o Jenkins.
+- **Decision:** Implementar o plugin JaCoCo via `buildSrc` para todos os subprojetos e criar uma task de agregação customizada no root project.
+- **Implementation:**
+    - `buildSrc/src/main/kotlin/gradle.java-common-conventions.gradle.kts`: Aplicado o plugin `jacoco` e configurado o `jacocoTestReport` para rodar após o `test`.
+    - `build.gradle.kts` (Root): Criada a task `jacocoTestReport` que agrega `executionData`, `sourceDirectories` e `classDirectories` de todos os subprojetos Java folha.
+- **Example:**
+    - Rodar `./gradlew test jacocoTestReport` gera:
+        - Reports individuais: `<module>/build/reports/jacoco/test/html/index.html`
+        - Report consolidado: `build/reports/jacoco/jacocoTestReport/html/index.html`
+- **Pitfalls:**
+    - O plugin `jacoco-report-aggregation` nativo do Gradle pode ter problemas com estruturas de subprojetos aninhados que não possuem o plugin Java aplicado. A task customizada no root é mais robusta para este layout.
+    - É importante filtrar apenas subprojetos "folha" (sem subprojetos próprios) que aplicam o plugin `java` para evitar erros de diretórios inexistentes.
+- **References:**
+    - `DSC-0024`, `DEC-0024`, `PLN-0047`.