Mysql support [DO NOT MERGE]

Builds/CMake/FindMySQL.cmake

@@ -0,0 +1,48 @@
+# - Find MySQL
+find_path(MYSQL_INCLUDE_DIR
+    NAMES mysql.h
+    PATHS
+        /usr/include/mysql
+        /usr/local/include/mysql
+        /opt/mysql/mysql/include
+    DOC "MySQL include directory"
+)
+
+find_library(MYSQL_LIBRARY
+    NAMES mysqlclient
+    PATHS
+        /usr/lib
+        /usr/lib/x86_64-linux-gnu
+        /usr/lib/mysql
+        /usr/local/lib/mysql
+        /opt/mysql/mysql/lib
+    DOC "MySQL client library"
+)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(MySQL
+    REQUIRED_VARS
+        MYSQL_LIBRARY
+        MYSQL_INCLUDE_DIR
+)
+
+if(MYSQL_FOUND)
+    set(MYSQL_INCLUDE_DIRS ${MYSQL_INCLUDE_DIR})
+    set(MYSQL_LIBRARIES ${MYSQL_LIBRARY})
+
+    # Create an imported target
+    if(NOT TARGET MySQL::MySQL)
+        add_library(MySQL::MySQL UNKNOWN IMPORTED)
+        set_target_properties(MySQL::MySQL PROPERTIES
+            IMPORTED_LOCATION "${MYSQL_LIBRARY}"
+            INTERFACE_INCLUDE_DIRECTORIES "${MYSQL_INCLUDE_DIR}"
+        )
+    endif()
+
+    mark_as_advanced(MYSQL_INCLUDE_DIR MYSQL_LIBRARY)
+else()
+    message(FATAL_ERROR "Could not find MySQL development files")
+endif()
+
+message(STATUS "Using MySQL include dir: ${MYSQL_INCLUDE_DIR}")
+message(STATUS "Using MySQL library: ${MYSQL_LIBRARY}")

Builds/CMake/RippledCore.cmake

@@ -540,6 +540,7 @@ target_sources (rippled PRIVATE
   #]===============================]
   src/ripple/nodestore/backend/CassandraFactory.cpp
   src/ripple/nodestore/backend/RWDBFactory.cpp
+  src/ripple/nodestore/backend/MySQLFactory.cpp
   src/ripple/nodestore/backend/MemoryFactory.cpp
   src/ripple/nodestore/backend/FlatmapFactory.cpp
   src/ripple/nodestore/backend/NuDBFactory.cpp

Builds/CMake/deps/MySQL.cmake

@@ -0,0 +1,56 @@
+#[===================================================================[
+   dep: MySQL
+   MySQL client library integration for rippled (static linking)
+#]===================================================================]
+# Create an IMPORTED target for MySQL
+add_library(mysql_client UNKNOWN IMPORTED)
+
+# Find MySQL client library and headers
+find_path(MYSQL_INCLUDE_DIR
+    NAMES mysql.h
+    PATHS
+        /usr/include/mysql
+        /usr/local/include/mysql
+        /opt/mysql/mysql/include
+    DOC "MySQL include directory"
+)
+
+# Modified to specifically look for static library
+find_library(MYSQL_LIBRARY
+    NAMES libmysqlclient.a mysqlclient.a    # Look for static libraries first
+    PATHS
+        /usr/lib
+        /usr/lib/x86_64-linux-gnu
+        /usr/lib/mysql
+        /usr/local/lib/mysql
+        /opt/mysql/mysql/lib
+    DOC "MySQL client static library"
+    NO_DEFAULT_PATH    # Prevents finding dynamic library first
+)
+
+# Set properties on the imported target
+if(MYSQL_INCLUDE_DIR AND MYSQL_LIBRARY)
+    set_target_properties(mysql_client PROPERTIES
+        IMPORTED_LOCATION "${MYSQL_LIBRARY}"
+        INTERFACE_INCLUDE_DIRECTORIES "${MYSQL_INCLUDE_DIR}"
+        IMPORTED_LINK_INTERFACE_LANGUAGES "CXX"    # Added for static linking
+        IMPORTED_LINK_INTERFACE_MULTIPLICITY "1"    # Added for static linking
+    )
+    message(STATUS "Found MySQL include dir: ${MYSQL_INCLUDE_DIR}")
+    message(STATUS "Found MySQL library: ${MYSQL_LIBRARY}")
+else()
+    message(FATAL_ERROR "Could not find MySQL static development files. Please install libmysqlclient-dev")
+endif()
+
+# Add MySQL backend source to rippled sources
+list(APPEND rippled_src
+    src/ripple/nodestore/backend/MySQLBackend.cpp)
+
+# Link MySQL to rippled
+target_link_libraries(ripple_libs
+    INTERFACE
+        mysql_client
+)
+
+# Create an alias target for consistency with other deps
+add_library(deps::mysql ALIAS mysql_client)

CMakeLists.txt

@@ -75,6 +75,7 @@ include(deps/gRPC)
 include(deps/cassandra)
 include(deps/Postgres)
 include(deps/WasmEdge)
+include(deps/MySQL)
 
 ###
 

build-full.sh

@@ -69,7 +69,14 @@ fi
 mkdir .nih_c;
 mkdir .nih_toolchain;
 cd .nih_toolchain &&
-yum install -y wget lz4 lz4-devel git llvm13-static.x86_64 llvm13-devel.x86_64 devtoolset-10-binutils zlib-static ncurses-static -y \
+(cat > /etc/yum.repos.d/MariaDB.repo << EOF
+[mariadb]
+name = MariaDB
+baseurl = http://yum.mariadb.org/10.5/centos7-amd64
+gpgkey=https://yum.mariadb.org/RPM-GPG-KEY-MariaDB
+gpgcheck=1
+EOF ) &&
+yum install -y wget lz4 lz4-devel git llvm13-static.x86_64 llvm13-devel.x86_64 devtoolset-10-binutils zlib-static ncurses-static MariaDB-devel MariaDB-shared -y \
   devtoolset-7-gcc-c++ \
   devtoolset-9-gcc-c++ \
   devtoolset-10-gcc-c++ \