Checks for Reanimated2

RNReanimated.podspec

@@ -4,6 +4,7 @@ require_relative './scripts/reanimated_utils'
 reanimated_package_json = JSON.parse(File.read(File.join(__dir__, "package.json")))
 config = find_config()
 assert_no_multiple_instances(config)
+assert_no_reanimated2_with_new_architecture(reanimated_package_json)
 
 fabric_enabled = ENV['RCT_NEW_ARCH_ENABLED'] == '1'
 folly_prefix = config[:react_native_minor_version] >= 64 ? 'RCT-' : ''

android/build.gradle

@@ -1,6 +1,6 @@
 import com.android.Version
 import org.apache.tools.ant.filters.ReplaceTokens
-
+import groovy.json.JsonSlurper
 import java.nio.file.Paths
 
 /**
@@ -165,16 +165,24 @@ def assertNoMultipleInstances() {
         String parsedLocation = files.stream().map({
             File file -> "- " + file.toString().replace("/package.json", "")
         }).collect().join("\n")
-        String exceptionMessage = "\nMultiple versions of Reanimated were detected. Only one " +
-            "instance of react-native-reanimated can be installed in a project. You need to " +
-            "resolve the conflict manually. Check out the documentation: " +
+        String exceptionMessage = "\n[react-native-reanimated] Multiple versions of Reanimated " +
+            "were detected. Only one instance of react-native-reanimated can be installed in a " +
+            "project. You need to resolve the conflict manually. Check out the documentation: " +
             "https://docs.swmansion.com/react-native-reanimated/docs/fundamentals/" +
             "troubleshooting#multiple-versions-of-reanimated-were-detected \n\nConflict " +
             "between: \n" + parsedLocation + "\n";
         throw new Exception(exceptionMessage)
     }
 }
 
+def getReanimatedVersion() {
+    def inputFile = file(projectDir.path + '/../package.json')
+    def json = new JsonSlurper().parseText(inputFile.text)
+    String reanimatedVersion = json.version
+    def (major, minor, patch) = reanimatedVersion.tokenize('.')
+    return major.toInteger()
+}
+
 boolean CLIENT_SIDE_BUILD = resolveClientSideBuild()
 if (CLIENT_SIDE_BUILD) {
     configurations.maybeCreate("default")
@@ -193,6 +201,7 @@ def REACT_NATIVE_VERSION = reactProperties.getProperty("VERSION_NAME")
 def REACT_NATIVE_MINOR_VERSION = REACT_NATIVE_VERSION.split("\\.")[1].toInteger()
 def FBJNI_VERSION = "0.3.0"
 def REANIMATED_PACKAGE_BUILD = System.getenv("REANIMATED_PACKAGE_BUILD")
+def REANIMATED_MAJOR_VERSION = getReanimatedVersion()
 
 // We download various C++ open-source dependencies into downloads.
 // We then copy both the downloaded code and our custom makefiles and headers into third-party-ndk.
@@ -529,12 +538,14 @@ android {
             }
 
             // messageQueueThread
-            if (REACT_NATIVE_MINOR_VERSION <= 67) {
-                srcDirs += "src/reactNativeVersionPatch/messageQueueThread/67"
-            } else {
-                srcDirs += "src/reactNativeVersionPatch/messageQueueThread/latest"
+            if (REANIMATED_MAJOR_VERSION > 2) {
+                if (REACT_NATIVE_MINOR_VERSION <= 67) {
+                    srcDirs += "src/reactNativeVersionPatch/messageQueueThread/67"
+                } else {
+                    srcDirs += "src/reactNativeVersionPatch/messageQueueThread/latest"
+                }
             }
-
+            
             // UIImplementation
             if (REACT_NATIVE_MINOR_VERSION <= 64) {
                 srcDirs += "src/reactNativeVersionPatch/UIImplementation/64"
@@ -559,8 +570,19 @@ def assertionTask = task assertNoMultipleInstancesTask {
     }
 }
 
+def assertNoReanimated2WithNewArchitecture = task assertNoReanimated2WithNewArchitectureTask {
+    onlyIf { isNewArchitectureEnabled() && REANIMATED_MAJOR_VERSION == 2 }
+    doFirst {
+        throw new Exception(
+            "\n[react-native-reanimated] Reanimated 2.x does not support Fabric. " +
+            "Please upgrade to 3.x to use Reanimated with the New Architecture. " +
+            "For details, see https://blog.swmansion.com/announcing-reanimated-3-16167428c5f7"
+        )
+    }
+}
+
 tasks.preBuild {
-    dependsOn assertionTask
+    dependsOn assertionTask, assertNoReanimated2WithNewArchitecture
 }
 
 task cleanCmakeCache() {

scripts/reanimated_utils.rb

@@ -60,6 +60,14 @@ def assert_no_multiple_instances(react_native_info)
       location['/package.json'] = ''
       parsed_location += "- " + location + "\n"
     end
-    raise "[Reanimated] Multiple versions of Reanimated were detected. Only one instance of react-native-reanimated can be installed in a project. You need to resolve the conflict manually. Check out the documentation: https://docs.swmansion.com/react-native-reanimated/docs/fundamentals/troubleshooting#multiple-versions-of-reanimated-were-detected \n\nConflict between: \n" + parsed_location
+    raise "[react-native-reanimated] Multiple versions of Reanimated were detected. Only one instance of react-native-reanimated can be installed in a project. You need to resolve the conflict manually. Check out the documentation: https://docs.swmansion.com/react-native-reanimated/docs/fundamentals/troubleshooting#multiple-versions-of-reanimated-were-detected \n\nConflict between: \n" + parsed_location
+  end
+end
+
+def assert_no_reanimated2_with_new_architecture(reanimated_package_json)
+  reanimated_major_version = reanimated_package_json['version'].split('.')[0].to_i
+  fabric_enabled = ENV['RCT_NEW_ARCH_ENABLED'] == '1'
+  if fabric_enabled && reanimated_major_version == 2
+    raise "[react-native-reanimated] Reanimated 2.x does not support Fabric. Please upgrade to 3.x to use Reanimated with the New Architecture. For details, see https://blog.swmansion.com/announcing-reanimated-3-16167428c5f7"
   end
 end