From 7085e253886336a0f51694f6f67a3e1973101367 Mon Sep 17 00:00:00 2001
From: xsren <285808407@qq.com>
Date: Mon, 4 Nov 2024 20:24:23 +0800
Subject: [PATCH] enh: lemon

---
 cmake/lemon_CMakeLists.txt.in     | 10 ++++++++++
 contrib/CMakeLists.txt            |  3 +++
 source/libs/parser/CMakeLists.txt | 19 +++++++++++++++++++
 3 files changed, 32 insertions(+)
 create mode 100644 cmake/lemon_CMakeLists.txt.in

diff --git a/cmake/lemon_CMakeLists.txt.in b/cmake/lemon_CMakeLists.txt.in
new file mode 100644
index 0000000000..1ba1cfd2e0
--- /dev/null
+++ b/cmake/lemon_CMakeLists.txt.in
@@ -0,0 +1,10 @@
+# lemon
+    ExternalProject_Add(
+        lemon
+        URL https://www.sqlite.org/src/tarball/sqlite.tar.gz?r=release
+        CONFIGURE_COMMAND ""
+        BUILD_COMMAND ${CMAKE_C_COMPILER} -o ${TD_CONTRIB_DIR}/deps-download/lemon-prefix/src/lemon-build/lemon ${TD_CONTRIB_DIR}/deps-download/lemon-prefix/src/lemon/tool/lemon.c 
+        INSTALL_COMMAND cp ${TD_CONTRIB_DIR}/deps-download/lemon-prefix/src/lemon-build/lemon  ${CMAKE_BINARY_DIR}/bin/lemon
+        INSTALL_COMMAND cp ${TD_CONTRIB_DIR}/deps-download/lemon-prefix/src/lemon/tool/lempar.c  ${CMAKE_BINARY_DIR}/bin/lempar.c
+        BUILD_IN_SOURCE 1
+    )
\ No newline at end of file
diff --git a/contrib/CMakeLists.txt b/contrib/CMakeLists.txt
index eae697560b..4ac32ed825 100644
--- a/contrib/CMakeLists.txt
+++ b/contrib/CMakeLists.txt
@@ -184,6 +184,9 @@ if(${BUILD_PCRE2})
     cat("${TD_SUPPORT_DIR}/pcre2_CMakeLists.txt.in" ${CONTRIB_TMP_FILE})
 endif()
 
+# lemon
+cat("${TD_SUPPORT_DIR}/lemon_CMakeLists.txt.in" ${CONTRIB_TMP_FILE})
+
 # download dependencies
 configure_file(${CONTRIB_TMP_FILE} "${TD_CONTRIB_DIR}/deps-download/CMakeLists.txt")
 execute_process(COMMAND "${CMAKE_COMMAND}" -G "${CMAKE_GENERATOR}" .
diff --git a/source/libs/parser/CMakeLists.txt b/source/libs/parser/CMakeLists.txt
index f1b801c563..c138e92716 100644
--- a/source/libs/parser/CMakeLists.txt
+++ b/source/libs/parser/CMakeLists.txt
@@ -4,7 +4,26 @@ IF(TD_ENTERPRISE)
         LIST(APPEND PARSER_SRC ${TD_ENTERPRISE_DIR}/src/plugins/view/src/parserView.c)
 ENDIF()
 
+add_custom_command(
+    OUTPUT ${TD_SOURCE_DIR}/source/libs/parser/src/sql.c
+    COMMAND echo "Running lemon process in ${TD_SOURCE_DIR}/source/libs/parser/inc"
+    COMMAND ${CMAKE_BINARY_DIR}/bin/lemon sql.y || true
+    COMMAND echo "copy sql.c from ${TD_SOURCE_DIR}/source/libs/parser/inc/sql.c to ${TD_SOURCE_DIR}/source/libs/parser/src/"
+    COMMAND cp ${TD_SOURCE_DIR}/source/libs/parser/inc/sql.c ${TD_SOURCE_DIR}/source/libs/parser/src/
+    COMMAND echo "lemon process completed."
+    DEPENDS ${TD_SOURCE_DIR}/source/libs/parser/inc/sql.y
+    WORKING_DIRECTORY ${TD_SOURCE_DIR}/source/libs/parser/inc
+    COMMENT "Generating sql.c using lemon"
+)
+
+add_custom_target(lemon_target
+    DEPENDS ${TD_SOURCE_DIR}/source/libs/parser/src/sql.c
+)
+
+list(APPEND PARSER_SRC ${TD_SOURCE_DIR}/source/libs/parser/src/sql.c)
+
 add_library(parser STATIC ${PARSER_SRC})
+add_dependencies(parser lemon_target)
 target_include_directories(
         parser
         PUBLIC "${TD_SOURCE_DIR}/include/libs/parser"