build: fold vendor.sh into cmake (#10)

CMakeLists.txt

@@ -11,17 +11,34 @@ set(LLAMA_OPENMP OFF)
 set(LLAMA_CPP_DIR "${CMAKE_CURRENT_SOURCE_DIR}/vendor/llama.cpp")
 set(SQLITE_AMALGAMATION_DIR "${CMAKE_CURRENT_SOURCE_DIR}/vendor/sqlite")
 
+include(ExternalProject)
+
+set(SQLITE_VERSION 3450300)
+set(SQLITE_YEAR 2024)
+set(SQLITE_URL https://www.sqlite.org/${SQLITE_YEAR}/sqlite-amalgamation-${SQLITE_VERSION}.zip)
+ExternalProject_Add(sqlite_amalgamation
+    URL             ${SQLITE_URL}
+    DOWNLOAD_DIR    ${CMAKE_BINARY_DIR}/downloads
+    SOURCE_DIR      ${SQLITE_AMALGAMATION_DIR}
+    CONFIGURE_COMMAND   ""
+    BUILD_COMMAND       ""
+    INSTALL_COMMAND     ""
+)
+
+
 add_subdirectory(${LLAMA_CPP_DIR} ${CMAKE_BINARY_DIR}/llama.cpp)
 
 include_directories(${SQLITE_AMALGAMATION_DIR})
 
 add_library(sqlite_lembed SHARED sqlite-lembed.c)
+add_dependencies(sqlite_lembed sqlite_amalgamation)
 target_link_libraries(sqlite_lembed ggml_static llama)
 target_include_directories(sqlite_lembed PRIVATE ${LLAMA_CPP_DIR})
 set_target_properties(sqlite_lembed PROPERTIES PREFIX "")
 set_target_properties(sqlite_lembed PROPERTIES OUTPUT_NAME "lembed0")
 
 add_library(sqlite_lembed_static STATIC sqlite-lembed.c)
+add_dependencies(sqlite_lembed_static sqlite_amalgamation)
 target_link_libraries(sqlite_lembed_static ggml_static llama)
 target_include_directories(sqlite_lembed_static PRIVATE ${LLAMA_CPP_DIR})
 target_compile_definitions(sqlite_lembed_static PRIVATE SQLITE_CORE)