feat: Add auto-installation for sentry-android SDK and integrations

buildSrc/src/main/java/Dependencies.kt

@@ -60,4 +60,19 @@ object Samples {
         const val compiler = "androidx.room:room-compiler:${version}"
         const val rxjava = "androidx.room:room-rxjava2:${version}"
     }
+
+    object OkHttp {
+        private const val version = "4.9.3"
+        const val okhttp = "com.squareup.okhttp3:okhttp:${version}"
+    }
+
+    object Timber {
+        private const val version = "5.0.1"
+        const val timber = "com.jakewharton.timber:timber:${version}"
+    }
+
+    object Fragment {
+        private const val version = "1.3.5"
+        const val fragmentKtx = "androidx.fragment:fragment-ktx:${version}"
+    }
 }

examples/android-instrumentation-sample/build.gradle.kts

@@ -50,8 +50,6 @@ android {
 // }
 
 dependencies {
-    implementation(Libs.SENTRY_ANDROID)
-
     implementation(Samples.AndroidX.recyclerView)
     implementation(Samples.AndroidX.lifecycle)
     implementation(Samples.AndroidX.appcompat)
@@ -63,6 +61,8 @@ dependencies {
     implementation(Samples.Room.ktx)
     implementation(Samples.Room.rxjava)
 
+    implementation(Samples.Timber.timber)
+    implementation(Samples.Fragment.fragmentKtx)
     implementation(project(":examples:android-room-lib"))
 
     kapt(Samples.Room.compiler)

examples/android-room-lib/build.gradle.kts

@@ -21,4 +21,8 @@ dependencies {
 
     implementation(Samples.Room.runtime)
     implementation(Samples.Room.ktx)
+
+    // this is here for test purposes, to ensure that transitive dependencies are also recognized
+    // by our auto-installation
+    implementation(Samples.OkHttp.okhttp)
 }

plugin-build/src/main/kotlin/io/sentry/android/gradle/SentryPlugin.kt

@@ -16,6 +16,8 @@ import io.sentry.android.gradle.SentryTasksProvider.getPackageBundleTask
 import io.sentry.android.gradle.SentryTasksProvider.getPackageProvider
 import io.sentry.android.gradle.SentryTasksProvider.getPreBundleTask
 import io.sentry.android.gradle.SentryTasksProvider.getTransformerTask
+import io.sentry.android.gradle.autoinstall.installDependencies
+import io.sentry.android.gradle.extensions.SentryPluginExtension
 import io.sentry.android.gradle.instrumentation.SpanAddingClassVisitorFactory
 import io.sentry.android.gradle.services.SentrySdkStateHolder
 import io.sentry.android.gradle.tasks.SentryGenerateProguardUuidTask
@@ -290,6 +292,8 @@ class SentryPlugin : Plugin<Project> {
                     project.logger.info { "uploadSentryNativeSymbols won't be executed" }
                 }
             }
+
+            project.installDependencies(extension)
         }
     }
 
@@ -307,6 +311,7 @@ class SentryPlugin : Plugin<Project> {
     companion object {
         const val SENTRY_ORG_PARAMETER = "sentryOrg"
         const val SENTRY_PROJECT_PARAMETER = "sentryProject"
+        internal const val SENTRY_SDK_VERSION = "5.6.1"
 
         internal val sep = File.separator
 

plugin-build/src/main/kotlin/io/sentry/android/gradle/autoinstall/AutoInstall.kt

@@ -0,0 +1,75 @@
+package io.sentry.android.gradle.autoinstall
+
+import io.sentry.android.gradle.autoinstall.fragment.FragmentInstallStrategy
+import io.sentry.android.gradle.autoinstall.fragment.FragmentInstallStrategy.Registrar.SENTRY_FRAGMENT_ID
+import io.sentry.android.gradle.autoinstall.okhttp.OkHttpInstallStrategy
+import io.sentry.android.gradle.autoinstall.okhttp.OkHttpInstallStrategy.Registrar.SENTRY_OKHTTP_ID
+import io.sentry.android.gradle.autoinstall.timber.TimberInstallStrategy
+import io.sentry.android.gradle.autoinstall.timber.TimberInstallStrategy.Registrar.SENTRY_TIMBER_ID
+import io.sentry.android.gradle.extensions.SentryPluginExtension
+import io.sentry.android.gradle.util.info
+import org.gradle.api.Project
+import org.gradle.api.artifacts.DependencySet
+
+internal const val SENTRY_GROUP = "io.sentry"
+private const val SENTRY_ANDROID_ID = "sentry-android"
+private const val SENTRY_ANDROID_CORE_ID = "sentry-android-core"
+
+private val strategies = listOf(
+    OkHttpInstallStrategy.Registrar,
+    TimberInstallStrategy.Registrar,
+    FragmentInstallStrategy.Registrar
+)
+
+fun Project.installDependencies(extension: SentryPluginExtension) {
+    configurations.named("implementation").configure { configuration ->
+        configuration.withDependencies { dependencies ->
+            // if autoInstallation is disabled, the autoInstallState will contain initial values
+            // which all default to false, hence, the integrations won't be installed as well
+            if (extension.autoInstallation.enabled.get()) {
+                val sentryVersion = dependencies.findSentryAndroidVersion()
+                with(AutoInstallState.getInstance(gradle)) {
+                    this.sentryVersion = installSentrySdk(sentryVersion, dependencies, extension)
+
+                    installOkHttp = !dependencies.isModuleAvailable(SENTRY_OKHTTP_ID)
+                    installTimber = !dependencies.isModuleAvailable(SENTRY_TIMBER_ID)
+                    installFragment = !dependencies.isModuleAvailable(SENTRY_FRAGMENT_ID)
+                }
+            }
+        }
+    }
+    project.dependencies.components { component ->
+        strategies.forEach { it.register(component) }
+    }
+}
+
+private fun Project.installSentrySdk(
+    sentryVersion: String?,
+    dependencies: DependencySet,
+    extension: SentryPluginExtension
+): String {
+    return if (sentryVersion == null) {
+        val userDefinedVersion = extension.autoInstallation.sentryVersion.get()
+        val sentryAndroidDep =
+            this.dependencies.create("$SENTRY_GROUP:$SENTRY_ANDROID_ID:$userDefinedVersion")
+        dependencies.add(sentryAndroidDep)
+        logger.info {
+            "sentry-android was successfully installed with version: $userDefinedVersion"
+        }
+        userDefinedVersion
+    } else {
+        logger.info {
+            "sentry-android won't be installed because it was already installed directly"
+        }
+        sentryVersion
+    }
+}
+
+private fun DependencySet.findSentryAndroidVersion(): String? =
+    find {
+        it.group == SENTRY_GROUP &&
+            (it.name == SENTRY_ANDROID_ID || it.name == SENTRY_ANDROID_CORE_ID)
+    }?.version
+
+private fun DependencySet.isModuleAvailable(id: String): Boolean =
+    any { it.group == SENTRY_GROUP && it.name == id }

plugin-build/src/main/kotlin/io/sentry/android/gradle/autoinstall/AutoInstallState.kt

@@ -0,0 +1,79 @@
+@file:Suppress("UnstableApiUsage")
+
+package io.sentry.android.gradle.autoinstall
+
+import io.sentry.android.gradle.SentryPlugin.Companion.SENTRY_SDK_VERSION
+import java.io.Serializable
+import org.gradle.api.invocation.Gradle
+
+class AutoInstallState private constructor() : Serializable {
+
+    @get:Synchronized
+    @set:Synchronized
+    var sentryVersion: String = SENTRY_SDK_VERSION
+
+    @get:Synchronized
+    @set:Synchronized
+    var installOkHttp: Boolean = false
+
+    @get:Synchronized
+    @set:Synchronized
+    var installFragment: Boolean = false
+
+    @get:Synchronized
+    @set:Synchronized
+    var installTimber: Boolean = false
+
+    override fun toString(): String {
+        return "AutoInstallState(sentryVersion='$sentryVersion', " +
+            "installOkHttp=$installOkHttp, " +
+            "installFragment=$installFragment, " +
+            "installTimber=$installTimber)"
+    }
+
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (javaClass != other?.javaClass) return false
+
+        other as AutoInstallState
+
+        if (sentryVersion != other.sentryVersion) return false
+        if (installOkHttp != other.installOkHttp) return false
+        if (installFragment != other.installFragment) return false
+        if (installTimber != other.installTimber) return false
+
+        return true
+    }
+
+    override fun hashCode(): Int {
+        var result = sentryVersion.hashCode()
+        result = 31 * result + installOkHttp.hashCode()
+        result = 31 * result + installFragment.hashCode()
+        result = 31 * result + installTimber.hashCode()
+        return result
+    }
+
+    // We can't use Kotlin object because we need new instance on each Gradle rebuild
+    // But if we're inside Gradle daemon, Kotlin object will be shared between builds
+    companion object {
+        @field:Volatile
+        private var instance: AutoInstallState? = null
+
+        @JvmStatic
+        @Synchronized
+        fun getInstance(gradle: Gradle? = null): AutoInstallState {
+            if (instance != null) {
+                return instance!!
+            }
+
+            val state = AutoInstallState()
+            instance = state
+
+            if (gradle != null) {
+                BuildFinishedListenerService.getInstance(gradle).onClose { instance = null }
+            }
+
+            return state
+        }
+    }
+}

plugin-build/src/main/kotlin/io/sentry/android/gradle/autoinstall/BuildFinishedListenerService.kt

@@ -0,0 +1,35 @@
+@file:Suppress("UnstableApiUsage")
+
+package io.sentry.android.gradle.autoinstall
+
+import io.sentry.android.gradle.util.getBuildServiceName
+import org.gradle.api.invocation.Gradle
+import org.gradle.api.services.BuildService
+import org.gradle.api.services.BuildServiceParameters
+
+abstract class BuildFinishedListenerService :
+    BuildService<BuildServiceParameters.None>,
+    AutoCloseable {
+
+    private val actionsOnClose = mutableListOf<() -> Unit>()
+
+    fun onClose(action: () -> Unit) {
+        actionsOnClose.add(action)
+    }
+
+    override fun close() {
+        for (action in actionsOnClose) {
+            action()
+        }
+        actionsOnClose.clear()
+    }
+
+    companion object {
+        fun getInstance(gradle: Gradle): BuildFinishedListenerService {
+            return gradle.sharedServices.registerIfAbsent(
+                getBuildServiceName(BuildFinishedListenerService::class.java),
+                BuildFinishedListenerService::class.java
+            ) {}.get()
+        }
+    }
+}

plugin-build/src/main/kotlin/io/sentry/android/gradle/autoinstall/InstallStrategyRegistrar.kt

@@ -0,0 +1,7 @@
+package io.sentry.android.gradle.autoinstall
+
+import org.gradle.api.artifacts.dsl.ComponentMetadataHandler
+
+interface InstallStrategyRegistrar {
+    fun register(component: ComponentMetadataHandler)
+}

plugin-build/src/main/kotlin/io/sentry/android/gradle/autoinstall/fragment/FragmentInstallStrategy.kt

@@ -0,0 +1,57 @@
+package io.sentry.android.gradle.autoinstall.fragment
+
+import io.sentry.android.gradle.SentryPlugin
+import io.sentry.android.gradle.autoinstall.AutoInstallState
+import io.sentry.android.gradle.autoinstall.InstallStrategyRegistrar
+import io.sentry.android.gradle.autoinstall.SENTRY_GROUP
+import io.sentry.android.gradle.util.info
+import javax.inject.Inject
+import org.gradle.api.artifacts.ComponentMetadataContext
+import org.gradle.api.artifacts.ComponentMetadataRule
+import org.gradle.api.artifacts.dsl.ComponentMetadataHandler
+import org.slf4j.Logger
+
+// @Inject is needed to avoid Gradle error
+// @CacheableRule // TODO: make it cacheable somehow (probably depends on parameters)
+abstract class FragmentInstallStrategy @Inject constructor() : ComponentMetadataRule {
+
+    private var logger: Logger = SentryPlugin.logger
+
+    constructor(logger: Logger) : this() {
+        this.logger = logger
+    }
+
+    override fun execute(context: ComponentMetadataContext) {
+        val autoInstallState = AutoInstallState.getInstance()
+        if (!autoInstallState.installFragment) {
+            logger.info {
+                "$SENTRY_FRAGMENT_ID won't be installed because it was already installed directly"
+            }
+            return
+        }
+
+        context.details.allVariants { metadata ->
+            metadata.withDependencies { dependencies ->
+                val sentryVersion = autoInstallState.sentryVersion
+                dependencies.add("$SENTRY_GROUP:$SENTRY_FRAGMENT_ID:$sentryVersion")
+
+                logger.info {
+                    "$SENTRY_FRAGMENT_ID was successfully installed with version: $sentryVersion"
+                }
+            }
+        }
+    }
+
+    companion object Registrar : InstallStrategyRegistrar {
+        private const val FRAGMENT_GROUP = "androidx.fragment"
+        private const val FRAGMENT_ID = "fragment"
+        internal const val SENTRY_FRAGMENT_ID = "sentry-android-fragment"
+
+        override fun register(component: ComponentMetadataHandler) {
+            component.withModule(
+                "$FRAGMENT_GROUP:$FRAGMENT_ID",
+                FragmentInstallStrategy::class.java
+            ) {}
+        }
+    }
+}