From 7f9fda00a2715e7ce8c649e4c25de9131fc885df Mon Sep 17 00:00:00 2001
From: Benjamin Linard <belinard@calcul.toulouse.inrae.fr>
Date: Thu, 8 Feb 2024 11:11:07 +0100
Subject: [PATCH] makes rapidjson dependency managed at cmake level, which will
 make it more portable on different servers (contrary to boost, likely
 uninstalled)

---
 epik/CMakeLists.txt  |  5 +++--
 epik/rapidjson.cmake | 22 ++++++++++++++++++++++
 2 files changed, 25 insertions(+), 2 deletions(-)
 create mode 100644 epik/rapidjson.cmake

diff --git a/epik/CMakeLists.txt b/epik/CMakeLists.txt
index 39221bc..82d29ae 100644
--- a/epik/CMakeLists.txt
+++ b/epik/CMakeLists.txt
@@ -16,7 +16,8 @@ if (NOT DEFINED ENABLE_AVX512)
     set(ENABLE_AVX512 OFF)
 endif()
 
-find_package(RapidJSON REQUIRED)
+#find_package(RapidJSON REQUIRED)
+
 find_package(Boost REQUIRED COMPONENTS filesystem)
 
 if(ENABLE_OMP)
@@ -44,7 +45,7 @@ else()
     message(STATUS "EPIK: Vectorization DISABLED")
 endif()
 
-message(STATUS "RapidJSON: " ${RAPIDJSON_INCLUDE_DIRS})
+message(STATUS "RapidJSON: " ${RAPIDJSON_INCLUDE_DIRS} ${RapidJSON_INCLUDE_DIR})
 # RapidJSON cmake scripts are different between versions
 set(RapidJSON_INCLUDES ${RAPIDJSON_INCLUDE_DIRS} ${RapidJSON_INCLUDE_DIR})
 
diff --git a/epik/rapidjson.cmake b/epik/rapidjson.cmake
new file mode 100644
index 0000000..478c269
--- /dev/null
+++ b/epik/rapidjson.cmake
@@ -0,0 +1,22 @@
+include(ExternalProject)
+
+# Download RapidJSON
+ExternalProject_Add(
+    rapidjson
+    PREFIX "rapidjson"
+    GIT_REPOSITORY "https://github.com/Tencent/rapidjson.git"
+    GIT_TAG f54b0e47a08782a6131cc3d60f94d038fa6e0a51
+    TIMEOUT 10
+    CMAKE_ARGS
+        -DRAPIDJSON_BUILD_TESTS=OFF
+        -DRAPIDJSON_BUILD_DOC=OFF
+        -DRAPIDJSON_BUILD_EXAMPLES=OFF
+    CONFIGURE_COMMAND ""
+    BUILD_COMMAND ""
+    INSTALL_COMMAND ""
+    UPDATE_COMMAND ""
+)
+
+# Prepare RapidJSON (RapidJSON is a header-only library)
+ExternalProject_Get_Property(rapidjson source_dir)
+set(RAPIDJSON_INCLUDE_DIRS ${source_dir}/include)