Rag refactored to match rn

Author: VyasGuru

sdk/runanywhere-flutter/packages/runanywhere/android/CMakeLists.txt

@@ -0,0 +1,46 @@
+cmake_minimum_required(VERSION 3.18)
+project(flutter_rag_bridge)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+# Source directory (shared between iOS and Android)
+set(SRC_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../src)
+
+# Bridge source files
+add_library(flutter_rag_bridge SHARED
+    ${SRC_DIR}/flutter_rag_bridge.cpp
+)
+
+# Include paths: bridge headers + nlohmann/json
+target_include_directories(flutter_rag_bridge PRIVATE
+    ${SRC_DIR}
+    ${SRC_DIR}/third_party
+)
+
+# Link against prebuilt librac_commons.so
+# The .so files are downloaded by build.gradle into build/jniLibs/ or src/main/jniLibs/
+# We find them relative to the current ABI
+set(JNILIB_DIR ${CMAKE_CURRENT_SOURCE_DIR}/build/jniLibs/${ANDROID_ABI})
+set(JNILIB_DIR_LOCAL ${CMAKE_CURRENT_SOURCE_DIR}/src/main/jniLibs/${ANDROID_ABI})
+
+# Try build dir first (remote mode), then local dir
+if(EXISTS "${JNILIB_DIR}/librac_commons.so")
+    set(RAC_LIB_DIR ${JNILIB_DIR})
+elseif(EXISTS "${JNILIB_DIR_LOCAL}/librac_commons.so")
+    set(RAC_LIB_DIR ${JNILIB_DIR_LOCAL})
+else()
+    message(WARNING "librac_commons.so not found for ${ANDROID_ABI} - bridge will have unresolved symbols until runtime")
+    set(RAC_LIB_DIR ${JNILIB_DIR})
+endif()
+
+# Import prebuilt rac_commons
+add_library(rac_commons SHARED IMPORTED)
+set_target_properties(rac_commons PROPERTIES
+    IMPORTED_LOCATION "${RAC_LIB_DIR}/librac_commons.so"
+)
+
+target_link_libraries(flutter_rag_bridge
+    rac_commons
+    log
+)

sdk/runanywhere-flutter/packages/runanywhere/android/build.gradle

@@ -50,6 +50,21 @@ android {
 
         // Consumer proguard rules
         consumerProguardFiles 'proguard-rules.pro'
+
+        // C++ RAG bridge compilation
+        externalNativeBuild {
+            cmake {
+                cppFlags '-std=c++17'
+                arguments '-DANDROID_STL=c++_shared'
+            }
+        }
+    }
+
+    // CMake build for the C++ RAG bridge
+    externalNativeBuild {
+        cmake {
+            path 'CMakeLists.txt'
+        }
     }
 
     compileOptions {

sdk/runanywhere-flutter/packages/runanywhere/ios/Classes/RACommons.exports

@@ -568,3 +568,12 @@ _rac_embeddings_destroy
 _rac_embeddings_result_free
 _rac_backend_onnx_embeddings_register
 _rac_backend_onnx_embeddings_unregister
+_flutter_rag_create_pipeline_json
+_flutter_rag_destroy_pipeline
+_flutter_rag_add_document
+_flutter_rag_add_documents_batch_json
+_flutter_rag_query_json
+_flutter_rag_clear_documents
+_flutter_rag_get_document_count
+_flutter_rag_get_statistics_json
+_flutter_rag_free_string

sdk/runanywhere-flutter/packages/runanywhere/ios/Classes/flutter_rag_bridge.cpp

@@ -0,0 +1 @@
+../../src/flutter_rag_bridge.cpp

sdk/runanywhere-flutter/packages/runanywhere/ios/Classes/flutter_rag_bridge.h

@@ -0,0 +1 @@
+../../src/flutter_rag_bridge.h

sdk/runanywhere-flutter/packages/runanywhere/ios/runanywhere.podspec

@@ -48,7 +48,7 @@ https://github.com/RunanywhereAI/runanywhere-sdks
   s.ios.deployment_target = '14.0'
   s.swift_version = '5.0'
 
-  # Source files (minimal - main logic is in the xcframework)
+  # Source files: plugin code + C++ RAG bridge (symlinked from ../src/ into Classes/)
   s.source_files = 'Classes/**/*'
 
   # Flutter dependency
@@ -124,8 +124,6 @@ https://github.com/RunanywhereAI/runanywhere-sdks
     ]
   end
 
-  s.preserve_paths = 'Frameworks/**/*'
-
   # Required frameworks
   s.frameworks = [
     'Foundation',
@@ -146,14 +144,20 @@ https://github.com/RunanywhereAI/runanywhere-sdks
   # Note: -all_load forces all symbols from static libraries to be loaded
   # With static linkage (use_frameworks! :linkage => :static in Podfile),
   # all symbols from RACommons.xcframework will be available in the final app
+  # C++ bridge needs nlohmann/json headers and C++17
   s.pod_target_xcconfig = {
     'DEFINES_MODULE' => 'YES',
     'EXCLUDED_ARCHS[sdk=iphonesimulator*]' => 'i386',
     'OTHER_LDFLAGS' => '-lc++ -larchive -lbz2',
     'CLANG_ALLOW_NON_MODULAR_INCLUDES_IN_FRAMEWORK_MODULES' => 'YES',
     'ENABLE_BITCODE' => 'NO',
+    'CLANG_CXX_LANGUAGE_STANDARD' => 'c++17',
+    'HEADER_SEARCH_PATHS' => '"${PODS_TARGET_SRCROOT}/Classes" "${PODS_TARGET_SRCROOT}/Classes/third_party" "${PODS_TARGET_SRCROOT}/../src" "${PODS_TARGET_SRCROOT}/../src/third_party"',
+    'GCC_PREPROCESSOR_DEFINITIONS' => '$(inherited)',
   }
 
+  s.preserve_paths = ['Frameworks/**/*', '../src/**/*', 'Classes/third_party/**/*']
+
   # CRITICAL: These flags propagate to the main app target to ensure all symbols
   # from vendored static frameworks are linked AND EXPORTED in the final binary.
   #