Add basic benchmarks for Duckduckgo Android application

^KT-49921 In Progress

libraries/tools/gradle/regression-benchmarks/benchmarkScripts/duckduckgo.benchmark.kts

@@ -0,0 +1,37 @@
+// Android application written in Kotlin:
+// - kind of big codebase
+// - uses Kotlin compiler plugins and kapt
+
+@file:BenchmarkProject(
+    name = "duckduckgo",
+    gitUrl = "https://github.com/duckduckgo/Android.git",
+    gitCommitSha = "659bd5aaac1fba922a6df9053daa2b7bcd610375"
+)
+
+runAllBenchmarks(
+    suite {
+        scenario {
+            title = "Clean build"
+            warmups = 3
+            iterations = 7
+            useGradleArgs("--no-build-cache")
+
+            runTasks("assembleDebug")
+            runCleanupTasks("clean")
+        }
+
+        scenario {
+            title = "Incremental build with ABI change"
+            warmups = 3
+            iterations = 7
+            useGradleArgs("--no-build-cache")
+
+            runTasks("assembleDebug")
+            applyAbiChangeTo("common/src/main/java/com/duckduckgo/app/global/ViewModelFactory.kt")
+        }
+    },
+    mapOf(
+        "1.6.10" to "benchmarkScripts/files/duckduckgo-kotlin-1.6.10.patch",
+        "1.6.20" to "benchmarkScripts/files/duckduckgo-kotlin-current.patch"
+    )
+)

libraries/tools/gradle/regression-benchmarks/benchmarkScripts/files/duckduckgo-kotlin-1.6.10.patch

@@ -0,0 +1,57 @@
+diff --git a/app/src/main/java/com/duckduckgo/app/tabs/model/TabRepository.kt b/app/src/main/java/com/duckduckgo/app/tabs/model/TabRepository.kt
+index 221e9837..d5b38082 100644
+--- a/app/src/main/java/com/duckduckgo/app/tabs/model/TabRepository.kt
++++ b/app/src/main/java/com/duckduckgo/app/tabs/model/TabRepository.kt
+@@ -19,6 +19,7 @@ package com.duckduckgo.app.tabs.model
+ import androidx.lifecycle.LiveData
+ import androidx.lifecycle.MutableLiveData
+ import com.duckduckgo.app.global.model.Site
++import kotlinx.coroutines.ExperimentalCoroutinesApi
+ import kotlinx.coroutines.flow.Flow
+ import kotlinx.coroutines.flow.SharedFlow
+ 
+@@ -36,6 +37,7 @@ interface TabRepository {
+     /**
+      * @return the tabs that are marked as "deletable" in the DB
+      */
++    @ExperimentalCoroutinesApi
+     val flowDeletableTabs: Flow<List<TabEntity>>
+ 
+     val liveSelectedTab: LiveData<TabEntity>
+diff --git a/build.gradle b/build.gradle
+index 4497fd12..c3f5b97c 100644
+--- a/build.gradle
++++ b/build.gradle
+@@ -2,10 +2,10 @@
+ buildscript {
+ 
+     ext {
+-        kotlin_version = '1.5.10'
++        kotlin_version = '1.6.10'
+     }
+     ext.spotless = "5.14.0"
+-    ext.anvil_version = "2.3.3"
++    ext.anvil_version = "2.3.10-1-6-0"
+ 
+     ext.gradle_plugin = "7.0.3"
+ 
+@@ -41,4 +41,4 @@ allprojects {
+ 
+ task clean(type: Delete) {
+     delete rootProject.buildDir
+-}
+\ No newline at end of file
++}
+diff --git a/versions.properties b/versions.properties
+index fae6ae6e..6debdaa6 100644
+--- a/versions.properties
++++ b/versions.properties
+@@ -73,7 +73,7 @@ version.io.reactivex.rxjava2..rxandroid=2.0.2
+ 
+ version.io.reactivex.rxjava2..rxjava=2.2.9
+ 
+-version.kotlin=1.5.31
++version.kotlin=1.6.10
+ 
+ version.kotlinx.coroutines=1.5.2
+ 

libraries/tools/gradle/regression-benchmarks/benchmarkScripts/files/duckduckgo-kotlin-current.patch

@@ -0,0 +1,73 @@
+diff --git a/app/src/main/java/com/duckduckgo/app/tabs/model/TabRepository.kt b/app/src/main/java/com/duckduckgo/app/tabs/model/TabRepository.kt
+index 221e9837..d5b38082 100644
+--- a/app/src/main/java/com/duckduckgo/app/tabs/model/TabRepository.kt
++++ b/app/src/main/java/com/duckduckgo/app/tabs/model/TabRepository.kt
+@@ -19,6 +19,7 @@ package com.duckduckgo.app.tabs.model
+ import androidx.lifecycle.LiveData
+ import androidx.lifecycle.MutableLiveData
+ import com.duckduckgo.app.global.model.Site
++import kotlinx.coroutines.ExperimentalCoroutinesApi
+ import kotlinx.coroutines.flow.Flow
+ import kotlinx.coroutines.flow.SharedFlow
+ 
+@@ -36,6 +37,7 @@ interface TabRepository {
+     /**
+      * @return the tabs that are marked as "deletable" in the DB
+      */
++    @ExperimentalCoroutinesApi
+     val flowDeletableTabs: Flow<List<TabEntity>>
+ 
+     val liveSelectedTab: LiveData<TabEntity>
+diff --git a/build.gradle b/build.gradle
+index 4497fd12..730df20a 100644
+--- a/build.gradle
++++ b/build.gradle
+@@ -2,10 +2,10 @@
+ buildscript {
+ 
+     ext {
+-        kotlin_version = '1.5.10'
++        kotlin_version = '1.6.255-SNAPSHOT'
+     }
+     ext.spotless = "5.14.0"
+-    ext.anvil_version = "2.3.3"
++    ext.anvil_version = "2.3.10-1-6-0"
+ 
+     ext.gradle_plugin = "7.0.3"
+ 
+@@ -15,6 +15,7 @@ buildscript {
+     ext.tools_build_version = "30.0.3"
+ 
+     repositories {
++        mavenLocal()
+         google()
+         mavenCentral()
+     }
+@@ -31,6 +32,7 @@ buildscript {
+ 
+ allprojects {
+     repositories {
++        mavenLocal()
+         google()
+         mavenCentral()
+     }
+@@ -41,4 +43,4 @@ allprojects {
+ 
+ task clean(type: Delete) {
+     delete rootProject.buildDir
+-}
+\ No newline at end of file
++}
+diff --git a/versions.properties b/versions.properties
+index fae6ae6e..81cb692c 100644
+--- a/versions.properties
++++ b/versions.properties
+@@ -73,7 +73,7 @@ version.io.reactivex.rxjava2..rxandroid=2.0.2
+ 
+ version.io.reactivex.rxjava2..rxjava=2.2.9
+ 
+-version.kotlin=1.5.31
++version.kotlin=1.6.255-SNAPSHOT
+ 
+ version.kotlinx.coroutines=1.5.2
+ 

libraries/tools/gradle/regression-benchmarks/build.gradle.kts

@@ -68,3 +68,9 @@ fun addBenchmarkTask(
         argumentProviders.add(scriptArgs)
     }
 }
+
+addBenchmarkTask(
+    taskName = "benchmarkRegressionDuckduckgo",
+    script = "duckduckgo.benchmark.kts",
+    JavaLanguageVersion.of(11)
+)