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WIP benchmarking ComposeWorkflow
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‎benchmarks/compose-workflow/app/build.gradle.kts

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plugins {
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id("com.android.application")
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id("kotlin-android")
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id("android-sample-app")
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id("android-ui-tests")
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alias(libs.plugins.compose.compiler)
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}
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android {
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defaultConfig {
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applicationId = "com.squareup.benchmark.composeworkflow.app"
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}
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namespace = "com.squareup.benchmark.composeworkflow.app"
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}
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dependencies {
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debugImplementation(libs.squareup.leakcanary.android)
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implementation(libs.androidx.activity.ktx)
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implementation(libs.androidx.lifecycle.viewmodel.ktx)
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implementation(libs.androidx.lifecycle.viewmodel.savedstate)
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implementation(libs.androidx.viewbinding)
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implementation(project(":workflow-ui:core-android"))
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implementation(project(":workflow-ui:core-common"))
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testImplementation(libs.kotlin.test.jdk)
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testImplementation(project(":workflow-testing"))
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}

‎benchmarks/compose-workflow/app/lint-baseline.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<issues format="6" by="lint 7.4.1" type="baseline" client="gradle" dependencies="false" name="AGP (7.4.1)" variant="all" version="7.4.1">
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<issue
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id="DataExtractionRules"
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message="The attribute `android:allowBackup` is deprecated from Android 12 and higher and may be removed in future versions. Consider adding the attribute `android:dataExtractionRules` specifying an `@xml` resource which configures cloud backups and device transfers on Android 12 and higher."
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errorLine1=" android:allowBackup=&quot;false&quot;"
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errorLine2=" ~~~~~">
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<location
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file="src/main/AndroidManifest.xml"
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line="6"
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column="28"/>
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</issue>
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</issues>

‎benchmarks/compose-workflow/app/src/main/AndroidManifest.xml

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<?xml version="1.0" encoding="utf-8"?>
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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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xmlns:tools="http://schemas.android.com/tools">
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<application
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android:allowBackup="false"
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android:label="@string/app_name"
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android:theme="@style/AppTheme"
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tools:ignore="GoogleAppIndexingWarning,MissingApplicationIcon"
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>
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<activity android:name="com.squareup.sample.hellocomposeworkflow.HelloComposeWorkflowActivity"
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android:exported="true">
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<intent-filter>
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<action android:name="android.intent.action.MAIN" />
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<category android:name="android.intent.category.LAUNCHER" />
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</intent-filter>
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</activity>
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</application>
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</manifest>

‎benchmarks/compose-workflow/app/src/main/java/com/squareup/sample/hellocomposeworkflow/HelloComposeWorkflow.kt

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package com.squareup.sample.hellocomposeworkflow
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import androidx.compose.runtime.Composable
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import androidx.compose.runtime.getValue
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import androidx.compose.runtime.mutableStateOf
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import androidx.compose.runtime.remember
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import androidx.compose.runtime.saveable.Saver
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import androidx.compose.runtime.saveable.SaverScope
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import androidx.compose.runtime.saveable.rememberSaveable
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import androidx.compose.runtime.setValue
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import com.squareup.sample.hellocomposeworkflow.HelloComposeWorkflow.State.Goodbye
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import com.squareup.sample.hellocomposeworkflow.HelloComposeWorkflow.State.Hello
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import com.squareup.workflow1.WorkflowExperimentalApi
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import com.squareup.workflow1.compose.ComposeWorkflow
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import java.util.concurrent.atomic.AtomicInteger
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@OptIn(WorkflowExperimentalApi::class)
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object HelloComposeWorkflow : ComposeWorkflow<Unit, Nothing, HelloRendering>() {
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enum class State {
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Hello,
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Goodbye
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}
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object StateSaver : Saver<State, Int> {
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override fun restore(value: Int) = State.entries[value]
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override fun SaverScope.save(value: State) = value.ordinal
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}
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@Composable
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override fun produceRendering(
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props: Unit,
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emitOutput: (Nothing) -> Unit
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): HelloRendering {
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var state by rememberSaveable(stateSaver = StateSaver) { mutableStateOf(Hello) }
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val compositions = remember { AtomicInteger(0) }
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println("OMG recomposing state=$state (count=${compositions.incrementAndGet()})")
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return HelloRendering(
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message = state.name,
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onClick = {
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println("OMG onClick! state=$state")
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state = when (state) {
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Hello -> Goodbye
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Goodbye -> Hello
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}
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}
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)
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}
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}

‎benchmarks/compose-workflow/app/src/main/java/com/squareup/sample/hellocomposeworkflow/HelloComposeWorkflowActivity.kt

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@file:OptIn(WorkflowExperimentalRuntime::class)
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package com.squareup.sample.hellocomposeworkflow
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import android.os.Bundle
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import androidx.activity.viewModels
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import androidx.appcompat.app.AppCompatActivity
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import androidx.lifecycle.SavedStateHandle
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import androidx.lifecycle.ViewModel
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import androidx.lifecycle.viewModelScope
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import com.squareup.workflow1.SimpleLoggingWorkflowInterceptor
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import com.squareup.workflow1.WorkflowExperimentalRuntime
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import com.squareup.workflow1.config.AndroidRuntimeConfigTools
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import com.squareup.workflow1.ui.renderWorkflowIn
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import com.squareup.workflow1.ui.workflowContentView
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import kotlinx.coroutines.flow.StateFlow
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class HelloComposeWorkflowActivity : AppCompatActivity() {
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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// This ViewModel will survive configuration changes. It's instantiated
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// by the first call to viewModels(), and that original instance is returned by
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// succeeding calls.
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val model: HelloViewModel by viewModels()
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workflowContentView.take(lifecycle, model.renderings)
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}
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}
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class HelloViewModel(savedState: SavedStateHandle) : ViewModel() {
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val renderings: StateFlow<HelloRendering> by lazy {
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renderWorkflowIn(
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workflow = HelloComposeWorkflow,
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scope = viewModelScope,
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savedStateHandle = savedState,
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runtimeConfig = AndroidRuntimeConfigTools.getAppWorkflowRuntimeConfig(),
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interceptors = listOf(SimpleLoggingWorkflowInterceptor())
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)
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}
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}

‎benchmarks/compose-workflow/app/src/main/java/com/squareup/sample/hellocomposeworkflow/HelloRendering.kt

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package com.squareup.sample.hellocomposeworkflow
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import com.squareup.sample.hellocomposeworkflow.databinding.HelloGoodbyeLayoutBinding
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import com.squareup.workflow1.ui.AndroidScreen
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import com.squareup.workflow1.ui.ScreenViewFactory
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import com.squareup.workflow1.ui.ScreenViewFactory.Companion.fromViewBinding
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data class HelloRendering(
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val message: String,
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val onClick: () -> Unit
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) : AndroidScreen<HelloRendering> {
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override val viewFactory: ScreenViewFactory<HelloRendering> =
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fromViewBinding(HelloGoodbyeLayoutBinding::inflate) { r, _ ->
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helloMessage.text = r.message
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helloMessage.setOnClickListener { r.onClick() }
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}
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}

‎benchmarks/compose-workflow/app/src/main/res/layout/hello_goodbye_layout.xml

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<?xml version="1.0" encoding="utf-8"?>
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<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
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android:orientation="vertical"
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android:layout_width="match_parent"
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android:layout_height="match_parent">
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<TextView
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android:id="@+id/hello_message"
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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android:gravity="center"
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/>
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</LinearLayout>

‎benchmarks/compose-workflow/app/src/main/res/values/strings.xml

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<resources>
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<string name="app_name">Compose Workflow Benchmark Target</string>
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</resources>

‎benchmarks/compose-workflow/app/src/main/res/values/styles.xml

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<resources>
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<!-- Base application theme. -->
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<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
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<!-- Customize your theme here. -->
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</style>
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</resources>

‎benchmarks/compose-workflow/benchmark/build.gradle.kts

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import com.rickbusarow.kgx.libsCatalog
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import com.rickbusarow.kgx.version
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import com.squareup.workflow1.buildsrc.internal.javaTarget
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import com.squareup.workflow1.buildsrc.internal.javaTargetVersion
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plugins {
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id("com.android.test")
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id("org.jetbrains.kotlin.android")
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}
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// Note: We are not including our defaults from .buildscript as we do not need the base Workflow
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// dependencies that those include.
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android {
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compileSdk = libsCatalog.version("compileSdk").toInt()
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compileOptions {
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sourceCompatibility = javaTargetVersion
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targetCompatibility = javaTargetVersion
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}
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kotlinOptions {
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jvmTarget = javaTarget
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freeCompilerArgs += "-opt-in=kotlin.RequiresOptIn"
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}
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defaultConfig {
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minSdk = 28
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targetSdk = libsCatalog.version("targetSdk").toInt()
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testInstrumentationRunner = "androidx.benchmark.junit4.AndroidBenchmarkRunner"
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}
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buildTypes {
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create("release") {
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isDebuggable = false
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signingConfig = getByName("debug").signingConfig
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proguardFile("baseline-proguard-rules.pro")
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}
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}
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targetProjectPath = ":benchmarks:compose-workflow:app"
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namespace = "com.squareup.benchmark.composeworkflow.benchmark"
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experimentalProperties["android.experimental.self-instrumenting"] = true
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}
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dependencies {
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implementation(libs.androidx.benchmark)
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implementation(libs.androidx.test.espresso.core)
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implementation(libs.androidx.test.junit)
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implementation(libs.androidx.test.uiautomator)
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}
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androidComponents {
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beforeVariants(selector().all()) {
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// TODO use it.enable when using AGP 7.3+
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it.enable = it.buildType == "release"
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}
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}

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