Implement version parsing and connect to RNTester (facebook#39502)

Summary:
Pull Request resolved: facebook#39502

This diff adds the parsing of the package.json to retrieve the version of react native and it matches it against a regex to decide whether to enable or not the New Architecture.

This change depends on [this CLI's PR](react-native-community/cli#2076).

## Changelog:
[Android][Added] - Parse RN Version to decide whether to enable the New Arch or not.

Reviewed By: cortinico

Differential Revision: D49270012

fbshipit-source-id: 0a829d3aa75ecd7fb45c1f40b03f5a959744f92e

packages/react-native-gradle-plugin/src/main/kotlin/com/facebook/react/ReactPlugin.kt

@@ -64,7 +64,7 @@ class ReactPlugin : Plugin<Project> {
       }
 
       configureReactNativeNdk(project, extension)
-      configureBuildConfigFields(project)
+      configureBuildConfigFields(project, extension)
       configureDevPorts(project)
       configureBackwardCompatibilityReactMap(project)
 

packages/react-native-gradle-plugin/src/main/kotlin/com/facebook/react/TaskConfiguration.kt

@@ -48,7 +48,7 @@ internal fun Project.configureReactTasks(variant: Variant, config: ReactExtensio
   val isDebuggableVariant =
       config.debuggableVariants.get().any { it.equals(variant.name, ignoreCase = true) }
 
-  configureNewArchPackagingOptions(project, variant)
+  configureNewArchPackagingOptions(project, config, variant)
   configureJsEnginePackagingOptions(config, variant, isHermesEnabledInThisVariant)
 
   if (!isDebuggableVariant) {

packages/react-native-gradle-plugin/src/main/kotlin/com/facebook/react/utils/AgpConfiguratorUtils.kt

@@ -8,6 +8,7 @@
 package com.facebook.react.utils
 
 import com.android.build.api.variant.AndroidComponentsExtension
+import com.facebook.react.ReactExtension
 import com.facebook.react.utils.ProjectUtils.isHermesEnabled
 import com.facebook.react.utils.ProjectUtils.isNewArchEnabled
 import org.gradle.api.Action
@@ -17,13 +18,15 @@ import org.gradle.api.plugins.AppliedPlugin
 @Suppress("UnstableApiUsage")
 internal object AgpConfiguratorUtils {
 
-  fun configureBuildConfigFields(project: Project) {
+  fun configureBuildConfigFields(project: Project, extension: ReactExtension) {
     val action =
         Action<AppliedPlugin> {
           project.extensions.getByType(AndroidComponentsExtension::class.java).finalizeDsl { ext ->
             ext.buildFeatures.buildConfig = true
             ext.defaultConfig.buildConfigField(
-                "boolean", "IS_NEW_ARCHITECTURE_ENABLED", project.isNewArchEnabled.toString())
+                "boolean",
+                "IS_NEW_ARCHITECTURE_ENABLED",
+                project.isNewArchEnabled(extension).toString())
             ext.defaultConfig.buildConfigField(
                 "boolean", "IS_HERMES_ENABLED", project.isHermesEnabled.toString())
           }

packages/react-native-gradle-plugin/src/main/kotlin/com/facebook/react/utils/NdkConfiguratorUtils.kt

@@ -20,7 +20,7 @@ internal object NdkConfiguratorUtils {
   fun configureReactNativeNdk(project: Project, extension: ReactExtension) {
     project.pluginManager.withPlugin("com.android.application") {
       project.extensions.getByType(AndroidComponentsExtension::class.java).finalizeDsl { ext ->
-        if (!project.isNewArchEnabled) {
+        if (!project.isNewArchEnabled(extension)) {
           // For Old Arch, we don't need to setup the NDK
           return@finalizeDsl
         }
@@ -74,9 +74,10 @@ internal object NdkConfiguratorUtils {
    */
   fun configureNewArchPackagingOptions(
       project: Project,
-      variant: Variant,
+      extension: ReactExtension,
+      variant: Variant
   ) {
-    if (!project.isNewArchEnabled) {
+    if (!project.isNewArchEnabled(extension)) {
       // For Old Arch, we set a pickFirst only on libraries that we know are
       // clashing with our direct dependencies (mainly FBJNI and Hermes).
       variant.packaging.jniLibs.pickFirsts.addAll(

packages/react-native-gradle-plugin/src/main/kotlin/com/facebook/react/utils/ProjectUtils.kt

@@ -7,6 +7,7 @@
 
 package com.facebook.react.utils
 
+import com.facebook.react.ReactExtension
 import com.facebook.react.model.ModelPackageJson
 import com.facebook.react.utils.KotlinStdlibCompatUtils.lowercaseCompat
 import com.facebook.react.utils.KotlinStdlibCompatUtils.toBooleanStrictOrNullCompat
@@ -16,19 +17,22 @@ import com.facebook.react.utils.PropertyUtils.REACT_NATIVE_ARCHITECTURES
 import com.facebook.react.utils.PropertyUtils.SCOPED_HERMES_ENABLED
 import com.facebook.react.utils.PropertyUtils.SCOPED_NEW_ARCH_ENABLED
 import com.facebook.react.utils.PropertyUtils.SCOPED_REACT_NATIVE_ARCHITECTURES
+import java.io.File
 import org.gradle.api.Project
 import org.gradle.api.file.DirectoryProperty
 
 internal object ProjectUtils {
-  internal val Project.isNewArchEnabled: Boolean
-    get() =
-        (project.hasProperty(NEW_ARCH_ENABLED) &&
-            project.property(NEW_ARCH_ENABLED).toString().toBoolean()) ||
-            (project.hasProperty(SCOPED_NEW_ARCH_ENABLED) &&
-                project.property(SCOPED_NEW_ARCH_ENABLED).toString().toBoolean())
 
   const val HERMES_FALLBACK = true
 
+  internal fun Project.isNewArchEnabled(extension: ReactExtension): Boolean {
+    return (project.hasProperty(NEW_ARCH_ENABLED) &&
+        project.property(NEW_ARCH_ENABLED).toString().toBoolean()) ||
+        (project.hasProperty(SCOPED_NEW_ARCH_ENABLED) &&
+            project.property(SCOPED_NEW_ARCH_ENABLED).toString().toBoolean()) ||
+        shouldEnableNewArchForReactNativeVersion(project.reactNativeDir(extension))
+  }
+
   internal val Project.isHermesEnabled: Boolean
     get() =
         if (project.hasProperty(HERMES_ENABLED) || project.hasProperty(SCOPED_HERMES_ENABLED)) {
@@ -75,4 +79,39 @@ internal object ProjectUtils {
     }
     return architectures
   }
+
+  internal fun Project.reactNativeDir(extension: ReactExtension): String =
+      extension.reactNativeDir.get().asFile.absolutePath
+
+  internal fun shouldEnableNewArchForReactNativeVersion(reactNativeDir: String): Boolean {
+    val packageJsonFile = File(reactNativeDir, "package.json")
+    if (!packageJsonFile.exists()) {
+      return false
+    }
+
+    val rnPackageJson = JsonUtils.fromPackageJson(packageJsonFile)
+    if (rnPackageJson == null) {
+      return false
+    }
+
+    // This regex describe the version syntax for React Native in the shape of
+    // major.minor.patch[-<prerelease>[[-.]k]]
+    // Where
+    // major is a number
+    // minor is a number
+    // patch is a number
+    // <prerelease>[-.]k is optional, but if present is preceeded by a `-`
+    // the <prerelease> tag is a string.
+    // it can be followed by `-` or `.` and k is a number.
+    val regex = """^(\d+)\.(\d+)\.(\d+)(?:-(\w+(?:[-.]\d+)?))?$""".toRegex()
+
+    val matchResult = regex.find(rnPackageJson.version)
+
+    if (matchResult == null) {
+      return false
+    }
+
+    val major = matchResult.groupValues[1].toInt()
+    return major > 0 && major < 1000
+  }
 }

packages/react-native-gradle-plugin/src/test/kotlin/com/facebook/react/utils/ProjectUtilsTest.kt

@@ -27,28 +27,141 @@ class ProjectUtilsTest {
 
   @Test
   fun isNewArchEnabled_returnsFalseByDefault() {
-    assertFalse(createProject().isNewArchEnabled)
+    val project = createProject()
+    val extension = TestReactExtension(project)
+    assertFalse(createProject().isNewArchEnabled(extension))
   }
 
   @Test
   fun isNewArchEnabled_withDisabled_returnsFalse() {
     val project = createProject()
     project.extensions.extraProperties.set("newArchEnabled", "false")
-    assertFalse(project.isNewArchEnabled)
+    val extension = TestReactExtension(project)
+    assertFalse(project.isNewArchEnabled(extension))
   }
 
   @Test
   fun isNewArchEnabled_withEnabled_returnsTrue() {
     val project = createProject()
     project.extensions.extraProperties.set("newArchEnabled", "true")
-    assertTrue(project.isNewArchEnabled)
+    val extension = TestReactExtension(project)
+    assertTrue(project.isNewArchEnabled(extension))
   }
 
   @Test
   fun isNewArchEnabled_withInvalid_returnsFalse() {
     val project = createProject()
     project.extensions.extraProperties.set("newArchEnabled", "¯\\_(ツ)_/¯")
-    assertFalse(project.isNewArchEnabled)
+    val extension = TestReactExtension(project)
+    assertFalse(project.isNewArchEnabled(extension))
+  }
+
+  @Test
+  fun isNewArchEnabled_withRNVersion0_returnFalse() {
+    val project = createProject()
+    val extension = TestReactExtension(project)
+    File(tempFolder.root, "package.json").apply {
+      writeText(
+          // language=json
+          """
+      {
+        "version": "0.73.0"
+      }
+      """
+              .trimIndent())
+    }
+    extension.reactNativeDir.set(tempFolder.root)
+    assertFalse(project.isNewArchEnabled(extension))
+  }
+
+  @Test
+  fun isNewArchEnabled_withRNVersion1_returnTrue() {
+    val project = createProject()
+    val extension = TestReactExtension(project)
+    File(tempFolder.root, "package.json").apply {
+      writeText(
+          // language=json
+          """
+      {
+        "version": "1.2.3"
+      }
+      """
+              .trimIndent())
+    }
+    extension.reactNativeDir.set(tempFolder.root)
+    assertTrue(project.isNewArchEnabled(extension))
+  }
+
+  @Test
+  fun isNewArchEnabled_withRNVersion1PrereleaseString_returnTrue() {
+    val project = createProject()
+    val extension = TestReactExtension(project)
+    File(tempFolder.root, "package.json").apply {
+      writeText(
+          // language=json
+          """
+      {
+        "version": "1.2.3-prealpha0"
+      }
+      """
+              .trimIndent())
+    }
+    extension.reactNativeDir.set(tempFolder.root)
+    assertTrue(project.isNewArchEnabled(extension))
+  }
+
+  @Test
+  fun isNewArchEnabled_withRNVersion1PrereleaseStringDotNumber_returnTrue() {
+    val project = createProject()
+    val extension = TestReactExtension(project)
+    File(tempFolder.root, "package.json").apply {
+      writeText(
+          // language=json
+          """
+      {
+        "version": "1.2.3-prealpha.0"
+      }
+      """
+              .trimIndent())
+    }
+    extension.reactNativeDir.set(tempFolder.root)
+    assertTrue(project.isNewArchEnabled(extension))
+  }
+
+  @Test
+  fun isNewArchEnabled_withRNVersion1PrereleaseStringDashNumber_returnTrue() {
+    val project = createProject()
+    val extension = TestReactExtension(project)
+    File(tempFolder.root, "package.json").apply {
+      writeText(
+          // language=json
+          """
+      {
+        "version": "1.2.3-prealpha-0"
+      }
+      """
+              .trimIndent())
+    }
+    extension.reactNativeDir.set(tempFolder.root)
+    assertTrue(project.isNewArchEnabled(extension))
+  }
+
+  @Test
+  fun isNewArchEnabled_withRNVersion1000_returnFalse() {
+    val project = createProject()
+    val extension = TestReactExtension(project)
+    File(tempFolder.root, "package.json").apply {
+      writeText(
+          // language=json
+          """
+      {
+        "version": "1000.0.0"
+      }
+      """
+              .trimIndent())
+    }
+    extension.reactNativeDir.set(tempFolder.root)
+    assertFalse(project.isNewArchEnabled(extension))
   }
 
   @Test

packages/rn-tester/android/app/build.gradle

@@ -5,12 +5,35 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+import groovy.json.JsonSlurper
+
 plugins {
     id("com.facebook.react")
     alias(libs.plugins.android.application)
     alias(libs.plugins.kotlin.android)
 }
 
+def reactNativeVersionRequireNewArchEnabled(reactNativeDirPath) {
+    def reactNativePackageJson = "$reactNativeDirPath/package.json"
+    def slurper = new JsonSlurper()
+    def jsonData = slurper.parse(new File(reactNativePackageJson))
+    def rnVersion = jsonData.version
+    def regexPattern = /^(\d+)\.(\d+)\.(\d+)(?:-(\w+(?:[-.]\d+)?))?$/
+
+
+    if (rnVersion =~ regexPattern) {
+        def result = (rnVersion =~ regexPattern).findAll().first()
+
+        def major = result[1].toInteger()
+        if (major > 0 && major < 1000) {
+            return true
+        }
+    }
+    return false
+}
+
+def reactNativeDirPath = "$rootDir/packages/react-native"
+def isNewArchEnabled = project.property("newArchEnabled") == "true" || reactNativeVersionRequireNewArchEnabled(reactNativeDirPath)
 /**
  * This is the configuration block to customize your React Native Android app.
  * By default you don't need to apply any configuration, just uncomment the lines you need.
@@ -20,11 +43,11 @@ react {
     //   The root of your project, i.e. where "package.json" lives. Default is '..'
     root = file("../../")
     //   The folder where the react-native NPM package is. Default is ../node_modules/react-native
-    reactNativeDir = file("$rootDir/packages/react-native")
+    reactNativeDir = file(reactNativeDirPath)
     //   The folder where the react-native Codegen package is. Default is ../node_modules/@react-native/codegen
     codegenDir = file("$rootDir/node_modules/@react-native/codegen")
     //   The cli.js file which is the React Native CLI entrypoint. Default is ../node_modules/react-native/cli.js
-    cliFile = file("$rootDir/packages/react-native/cli.js")
+    cliFile = file("$reactNativeDirPath/cli.js")
 
     /* Variants */
     //   The list of variants to that are debuggable. For those we're going to
@@ -54,7 +77,7 @@ react {
 
     /* Hermes Commands */
     //   The hermes compiler command to run. By default it is 'hermesc'
-    hermesCommand = "$rootDir/packages/react-native/ReactAndroid/hermes-engine/build/hermes/bin/hermesc"
+    hermesCommand = "$reactNativeDirPath/ReactAndroid/hermes-engine/build/hermes/bin/hermesc"
     enableHermesOnlyInVariants = ["hermesDebug", "hermesRelease"]
 }
 
@@ -148,7 +171,7 @@ android {
         java {
             // SampleTurboModule.
             srcDirs += [
-                "$rootDir/packages/react-native/ReactCommon/react/nativemodule/samples/platform/android",
+                "$reactNativeDirPath/ReactCommon/react/nativemodule/samples/platform/android",
             ]
         }
     }
@@ -172,7 +195,7 @@ android {
         cmake {
             // RN Tester is doing custom linking of C++ libraries therefore needs
             // a dedicated CMakeLists.txt file.
-            if (project.property("newArchEnabled") == "true") {
+            if (isNewArchEnabled) {
                 path("src/main/jni/CMakeLists.txt")
             }
         }
@@ -189,7 +212,7 @@ afterEvaluate {
     // As we're building 4 native flavors in parallel, there is clash on the `.cxx/Debug` and
     // `.cxx/Release` folder where the CMake intermediates are stored.
     // We fixing this by instructing Gradle to always mergeLibs after they've been built.
-    if (project.property("newArchEnabled") == "true") {
+    if (isNewArchEnabled) {
         mergeHermesDebugNativeLibs.mustRunAfter(externalNativeBuildJscDebug)
         mergeHermesReleaseNativeLibs.mustRunAfter(externalNativeBuildJscRelease)
         mergeJscDebugNativeLibs.mustRunAfter(externalNativeBuildHermesDebug)