Upstreaming Runtime Monitoring and Tracing

.github/workflows/kotlin.yml

@@ -172,7 +172,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
-      - name: Check with Gradle
+      - name: Lint via gradle
         uses: ./.github/actions/gradle-task
         with:
           task: lint
@@ -187,7 +187,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
-      - name: Check with Gradle
+      - name: allTests via gradle
         uses: ./.github/actions/gradle-task
         with:
           task: |
@@ -228,18 +228,24 @@ jobs:
       - name: Checkout
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
-      - name: Check with Gradle
+      - name: jvmTest via Gradle
         uses: ./.github/actions/gradle-task
         with:
           task: jvmTest --continue -Pworkflow.runtime=drainExclusive
           restore-cache-key: main-build-artifacts
 
+      - name: test via Gradle
+        uses: ./.github/actions/gradle-task
+        with:
+          task: test --continue -Pworkflow.runtime=drainExclusive
+          restore-cache-key: main-build-artifacts
+
       # Report as GitHub Pull Request Check.
       - name: Publish Test Report
         uses: mikepenz/action-junit-report@db71d41eb79864e25ab0337e395c352e84523afe # v4
         if: always() # always run even if the previous step fails
         with:
-          report_paths: '**/build/test-results/jvmTest/TEST-*.xml'
+          report_paths: '**/build/test-results/*[tT]est/TEST-*.xml'
 
   jvm-conflate-runtime-test:
     name: CSR JVM Tests
@@ -260,7 +266,7 @@ jobs:
         uses: mikepenz/action-junit-report@db71d41eb79864e25ab0337e395c352e84523afe # v4
         if: always() # always run even if the previous step fails
         with:
-          report_paths: '**/build/test-results/jvmTest/TEST-*.xml'
+          report_paths: '**/build/test-results/*[tT]est/TEST-*.xml'
 
   jvm-stateChange-runtime-test:
     name: SCO JVM Tests
@@ -281,7 +287,7 @@ jobs:
         uses: mikepenz/action-junit-report@db71d41eb79864e25ab0337e395c352e84523afe # v4
         if: always() # always run even if the previous step fails
         with:
-          report_paths: '**/build/test-results/jvmTest/TEST-*.xml'
+          report_paths: '**/build/test-results/*[tT]est/TEST-*.xml'
 
   jvm-stable-handlers-test:
     name: SEH JVM Tests
@@ -302,7 +308,7 @@ jobs:
         uses: mikepenz/action-junit-report@db71d41eb79864e25ab0337e395c352e84523afe # v4
         if: always() # always run even if the previous step fails
         with:
-          report_paths: '**/build/test-results/jvmTest/TEST-*.xml'
+          report_paths: '**/build/test-results/*[tT]est/TEST-*.xml'
 
   jvm-partial-runtime-test:
     name: PTR JVM Tests
@@ -323,7 +329,7 @@ jobs:
         uses: mikepenz/action-junit-report@db71d41eb79864e25ab0337e395c352e84523afe # v4
         if: always() # always run even if the previous step fails
         with:
-          report_paths: '**/build/test-results/jvmTest/TEST-*.xml'
+          report_paths: '**/build/test-results/*[tT]est/TEST-*.xml'
 
   jvm-conflate-stateChange-runtime-test:
     name: SCO, CSR JVM Tests
@@ -344,7 +350,7 @@ jobs:
         uses: mikepenz/action-junit-report@db71d41eb79864e25ab0337e395c352e84523afe # v4
         if: always() # always run even if the previous step fails
         with:
-          report_paths: '**/build/test-results/jvmTest/TEST-*.xml'
+          report_paths: '**/build/test-results/*[tT]est/TEST-*.xml'
 
   jvm-conflate-partial-runtime-test:
     name: CSR, PTR JVM Tests
@@ -365,7 +371,7 @@ jobs:
         uses: mikepenz/action-junit-report@db71d41eb79864e25ab0337e395c352e84523afe # v4
         if: always() # always run even if the previous step fails
         with:
-          report_paths: '**/build/test-results/jvmTest/TEST-*.xml'
+          report_paths: '**/build/test-results/*[tT]est/TEST-*.xml'
 
   jvm-conflate-drainExclusive-runtime-test:
     name: CSR, DEA JVM Tests
@@ -386,7 +392,7 @@ jobs:
         uses: mikepenz/action-junit-report@db71d41eb79864e25ab0337e395c352e84523afe # v4
         if: always() # always run even if the previous step fails
         with:
-          report_paths: '**/build/test-results/jvmTest/TEST-*.xml'
+          report_paths: '**/build/test-results/*[tT]est/TEST-*.xml'
 
   jvm-stateChange-drainExclusive-runtime-test:
     name: SCO, DEA JVM Tests
@@ -407,7 +413,7 @@ jobs:
         uses: mikepenz/action-junit-report@db71d41eb79864e25ab0337e395c352e84523afe # v4
         if: always() # always run even if the previous step fails
         with:
-          report_paths: '**/build/test-results/jvmTest/TEST-*.xml'
+          report_paths: '**/build/test-results/*[tT]est/TEST-*.xml'
 
   jvm-partial-drainExclusive-runtime-test:
     name: PTR, DEA JVM Tests
@@ -428,7 +434,7 @@ jobs:
         uses: mikepenz/action-junit-report@db71d41eb79864e25ab0337e395c352e84523afe # v4
         if: always() # always run even if the previous step fails
         with:
-          report_paths: '**/build/test-results/jvmTest/TEST-*.xml'
+          report_paths: '**/build/test-results/*[tT]est/TEST-*.xml'
 
   jvm-conflate-stateChange-drainExclusive-runtime-test:
     name: SCO, CSR, DEA JVM Tests
@@ -449,7 +455,7 @@ jobs:
         uses: mikepenz/action-junit-report@db71d41eb79864e25ab0337e395c352e84523afe # v4
         if: always() # always run even if the previous step fails
         with:
-          report_paths: '**/build/test-results/jvmTest/TEST-*.xml'
+          report_paths: '**/build/test-results/*[tT]est/TEST-*.xml'
 
   jvm-conflate-partial-drainExclusive-runtime-test:
     name: CSR, PTR, DEA JVM Tests
@@ -470,7 +476,7 @@ jobs:
         uses: mikepenz/action-junit-report@db71d41eb79864e25ab0337e395c352e84523afe # v4
         if: always() # always run even if the previous step fails
         with:
-          report_paths: '**/build/test-results/jvmTest/TEST-*.xml'
+          report_paths: '**/build/test-results/*[tT]est/TEST-*.xml'
 
   jvm-all-runtime-test:
     name: ALL Optimizations JVM Tests
@@ -491,7 +497,7 @@ jobs:
         uses: mikepenz/action-junit-report@db71d41eb79864e25ab0337e395c352e84523afe # v4
         if: always() # always run even if the previous step fails
         with:
-          report_paths: '**/build/test-results/jvmTest/TEST-*.xml'
+          report_paths: '**/build/test-results/*[tT]est/TEST-*.xml'
 
   ios-tests:
     name: iOS Tests

artifacts.json

@@ -1,13 +1,4 @@
 [
-  {
-    "gradlePath": ":trace-encoder",
-    "group": "com.squareup.workflow1",
-    "artifactId": "trace-encoder",
-    "description": "Trace Encoder",
-    "packaging": "jar",
-    "javaVersion": 8,
-    "publicationName": "maven"
-  },
   {
     "gradlePath": ":workflow-core",
     "group": "com.squareup.workflow1",
@@ -148,7 +139,16 @@
     "group": "com.squareup.workflow1",
     "artifactId": "workflow-tracing",
     "description": "Workflow Tracing",
-    "packaging": "jar",
+    "packaging": "aar",
+    "javaVersion": 8,
+    "publicationName": "maven"
+  },
+  {
+    "gradlePath": ":workflow-tracing-papa",
+    "group": "com.squareup.workflow1",
+    "artifactId": "workflow-tracing-papa",
+    "description": "Workflow Tracing Papa",
+    "packaging": "aar",
     "javaVersion": 8,
     "publicationName": "maven"
   },

gradle/libs.versions.toml

@@ -13,6 +13,7 @@ androidx-activity = "1.8.2"
 androidx-appcompat = "1.7.0"
 androidx-benchmark = "1.3.3"
 androidx-cardview = "1.0.0"
+androidx-collection = "1.5.0"
 # see https://developer.android.com/jetpack/compose/bom/bom-mapping
 androidx-compose-bom = "2025.03.01"
 androidx-constraintlayout = "2.1.4"
@@ -127,6 +128,8 @@ androidx-appcompat = { module = "androidx.appcompat:appcompat", version.ref = "a
 
 androidx-cardview = { module = "androidx.cardview:cardview", version.ref = "androidx-cardview" }
 
+androidx-collection = { module = "androidx.collection:collection", version.ref = "androidx-collection" }
+
 androidx-compose-bom = { module = "androidx.compose:compose-bom", version.ref = "androidx-compose-bom" }
 
 androidx-compose-foundation-layout = { module = "androidx.compose.foundation:foundation-layout" }

samples/dungeon/app/build.gradle.kts

@@ -47,7 +47,6 @@ dependencies {
   implementation(project(":samples:dungeon:common"))
   implementation(project(":samples:dungeon:timemachine"))
   implementation(project(":samples:dungeon:timemachine-shakeable"))
-  implementation(project(":workflow-tracing"))
   implementation(project(":workflow-ui:core-android"))
   implementation(project(":workflow-ui:core-common"))
 

samples/dungeon/app/src/main/java/com/squareup/sample/dungeon/Component.kt

@@ -56,7 +56,6 @@ class Component(context: AppCompatActivity) {
 
   val timeMachineModelFactory = TimeMachineModel.Factory(
     context,
-    timeMachineWorkflow,
-    traceFilesDir = context.filesDir
+    timeMachineWorkflow
   )
 }

samples/dungeon/app/src/main/java/com/squareup/sample/dungeon/TimeMachineModel.kt

@@ -8,35 +8,30 @@ import androidx.savedstate.SavedStateRegistryOwner
 import com.squareup.workflow1.WorkflowExperimentalRuntime
 import com.squareup.workflow1.android.renderWorkflowIn
 import com.squareup.workflow1.config.AndroidRuntimeConfigTools
-import com.squareup.workflow1.diagnostic.tracing.TracingWorkflowInterceptor
 import com.squareup.workflow1.ui.Screen
 import kotlinx.coroutines.flow.StateFlow
-import java.io.File
 import kotlin.time.ExperimentalTime
 
 class TimeMachineModel(
   private val savedState: SavedStateHandle,
   private val workflow: TimeMachineAppWorkflow,
-  private val traceFilesDir: File
 ) : ViewModel() {
   @OptIn(ExperimentalTime::class, WorkflowExperimentalRuntime::class)
   val renderings: StateFlow<Screen> by lazy {
-    val traceFile = traceFilesDir.resolve("workflow-trace-dungeon.json")
 
     renderWorkflowIn(
       workflow = workflow,
       prop = "simple_maze.txt",
       scope = viewModelScope,
       savedStateHandle = savedState,
-      interceptors = listOf(TracingWorkflowInterceptor(traceFile)),
+      interceptors = emptyList(),
       runtimeConfig = AndroidRuntimeConfigTools.getAppWorkflowRuntimeConfig()
     )
   }
 
   class Factory(
     owner: SavedStateRegistryOwner,
     private val workflow: TimeMachineAppWorkflow,
-    private val traceFilesDir: File
   ) : AbstractSavedStateViewModelFactory(owner, null) {
     override fun <T : ViewModel> create(
       key: String,
@@ -45,7 +40,7 @@ class TimeMachineModel(
     ): T {
       if (modelClass == TimeMachineModel::class.java) {
         @Suppress("UNCHECKED_CAST")
-        return TimeMachineModel(handle, workflow, traceFilesDir) as T
+        return TimeMachineModel(handle, workflow) as T
       }
 
       throw IllegalArgumentException("Unknown ViewModel type $modelClass")

samples/tictactoe/app/build.gradle.kts

@@ -39,7 +39,6 @@ dependencies {
 
   implementation(project(":samples:containers:android"))
   implementation(project(":samples:tictactoe:common"))
-  implementation(project(":workflow-tracing"))
   implementation(project(":workflow-ui:core-android"))
   implementation(project(":workflow-ui:core-common"))
 }

samples/tictactoe/app/src/main/java/com/squareup/sample/mainactivity/TicTacToeComponent.kt

@@ -55,7 +55,7 @@ class TicTacToeComponent : ViewModel() {
   private val ticTacToeWorkflow = TicTacToeWorkflow(authWorkflow(), gameWorkflow())
 
   fun ticTacToeModelFactory(owner: AppCompatActivity): TicTacToeModel.Factory =
-    TicTacToeModel.Factory(owner, ticTacToeWorkflow, traceFilesDir = owner.filesDir)
+    TicTacToeModel.Factory(owner, ticTacToeWorkflow)
 
   companion object {
     init {

samples/tictactoe/app/src/main/java/com/squareup/sample/mainactivity/TicTacToeModel.kt

@@ -11,27 +11,23 @@ import com.squareup.sample.mainworkflow.TicTacToeWorkflow
 import com.squareup.workflow1.WorkflowExperimentalRuntime
 import com.squareup.workflow1.android.renderWorkflowIn
 import com.squareup.workflow1.config.AndroidRuntimeConfigTools
-import com.squareup.workflow1.diagnostic.tracing.TracingWorkflowInterceptor
 import com.squareup.workflow1.ui.Screen
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.flow.StateFlow
-import java.io.File
 
 class TicTacToeModel(
   private val savedState: SavedStateHandle,
   private val workflow: TicTacToeWorkflow,
-  private val traceFilesDir: File
 ) : ViewModel() {
   private val running = Job()
 
   val renderings: StateFlow<Screen> by lazy {
-    val traceFile = traceFilesDir.resolve("workflow-trace-tictactoe.json")
 
     renderWorkflowIn(
       workflow = workflow,
       scope = viewModelScope,
       savedStateHandle = savedState,
-      interceptors = listOf(TracingWorkflowInterceptor(traceFile)),
+      interceptors = emptyList(),
       runtimeConfig = AndroidRuntimeConfigTools.getAppWorkflowRuntimeConfig()
     ) {
       running.complete()
@@ -43,7 +39,6 @@ class TicTacToeModel(
   class Factory(
     owner: SavedStateRegistryOwner,
     private val workflow: TicTacToeWorkflow,
-    private val traceFilesDir: File
   ) : AbstractSavedStateViewModelFactory(owner, null) {
     override fun <T : ViewModel> create(
       key: String,
@@ -52,7 +47,7 @@ class TicTacToeModel(
     ): T {
       if (modelClass == TicTacToeModel::class.java) {
         @Suppress("UNCHECKED_CAST")
-        return TicTacToeModel(handle, workflow, traceFilesDir) as T
+        return TicTacToeModel(handle, workflow) as T
       }
 
       throw IllegalArgumentException("Unknown ViewModel type $modelClass")

samples/todo-android/app/build.gradle.kts

@@ -29,7 +29,6 @@ dependencies {
   implementation(project(":samples:containers:android"))
   implementation(project(":samples:containers:common"))
   implementation(project(":workflow-core"))
-  implementation(project(":workflow-tracing"))
   implementation(project(":workflow-ui:core-android"))
   implementation(project(":workflow-ui:core-common"))
 

samples/todo-android/app/src/main/java/com/squareup/sample/todo/ToDoActivity.kt

@@ -12,14 +12,12 @@ import com.squareup.sample.container.overviewdetail.OverviewDetailContainer
 import com.squareup.workflow1.WorkflowExperimentalRuntime
 import com.squareup.workflow1.android.renderWorkflowIn
 import com.squareup.workflow1.config.AndroidRuntimeConfigTools
-import com.squareup.workflow1.diagnostic.tracing.TracingWorkflowInterceptor
 import com.squareup.workflow1.ui.Screen
 import com.squareup.workflow1.ui.ViewRegistry
 import com.squareup.workflow1.ui.withRegistry
 import com.squareup.workflow1.ui.workflowContentView
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.map
-import java.io.File
 
 class ToDoActivity : AppCompatActivity() {
 
@@ -31,7 +29,7 @@ class ToDoActivity : AppCompatActivity() {
     workflowContentView
       .take(
         lifecycle,
-        model.ensureWorkflow(traceFilesDir = filesDir).map { it.withRegistry(viewRegistry) }
+        model.ensureWorkflow().map { it.withRegistry(viewRegistry) }
       )
   }
 
@@ -43,15 +41,14 @@ class ToDoActivity : AppCompatActivity() {
 class ToDoModel(private val savedState: SavedStateHandle) : ViewModel() {
   private var renderings: StateFlow<Screen>? = null
 
-  fun ensureWorkflow(traceFilesDir: File): StateFlow<Screen> {
+  fun ensureWorkflow(): StateFlow<Screen> {
     if (renderings == null) {
-      val traceFile = traceFilesDir.resolve("workflow-trace-todo.json")
 
       renderings = renderWorkflowIn(
         workflow = TodoListsAppWorkflow,
         scope = viewModelScope,
         savedStateHandle = savedState,
-        interceptors = listOf(TracingWorkflowInterceptor(traceFile)),
+        interceptors = emptyList(),
         runtimeConfig = AndroidRuntimeConfigTools.getAppWorkflowRuntimeConfig()
       )
     }

settings.gradle.kts

@@ -59,7 +59,6 @@ include(
   ":samples:tictactoe:app",
   ":samples:tictactoe:common",
   ":samples:todo-android:app",
-  ":trace-encoder",
   ":workflow-config:config-android",
   ":workflow-config:config-jvm",
   ":workflow-core",
@@ -68,6 +67,7 @@ include(
   ":workflow-rx2",
   ":workflow-testing",
   ":workflow-tracing",
+  ":workflow-tracing-papa",
   ":workflow-trace-viewer",
   ":workflow-ui:compose",
   ":workflow-ui:compose-tooling",