Add CHDB_VERION for cmake (#96)

Author: nmreadelf

chdb/build.sh

@@ -82,6 +82,7 @@ cmake -DCMAKE_BUILD_TYPE=Release -DENABLE_THINLTO=0 -DENABLE_TESTS=0 -DENABLE_CL
     ${CPU_FEATURES} \
     ${CMAKE_TOOLCHAIN_FILE} \
     -DENABLE_AVX512=0 -DENABLE_AVX512_VBMI=0 \
+    -DCHDB_VERSION=${CHDB_VERSION} \
     ..
 ninja
 

chdb/vars.sh

@@ -5,6 +5,9 @@ BUILD_DIR="$PROJ_DIR/buildlib" # build directory
 CHDB_DIR="$PROJ_DIR/chdb" # chdb directory
 CHDB_PY_MOD="_chdb"
 CHDB_PY_MODULE=${CHDB_PY_MOD}$(python3 -c "import sysconfig; print(sysconfig.get_config_var('EXT_SUFFIX'))")
+pushd ${PROJ_DIR}
+CHDB_VERSION=$(python3 -c 'import setup; print(setup.get_latest_git_tag())')
+popd
 
 # check current os type, and make ldd command
 if [ "$(uname)" == "Darwin" ]; then
@@ -14,4 +17,4 @@ elif [ "$(uname)" == "Linux" ]; then
 else
     echo "OS not supported"
     exit 1
-fi
+fi

src/Functions/chdbVersion.cpp

@@ -3,6 +3,7 @@
 #include <DataTypes/DataTypeString.h>
 #include <Functions/FunctionFactory.h>
 #include <Functions/FunctionConstantBase.h>
+#include <Common/FunctionDocumentation.h>
 
 namespace DB
 {
@@ -21,14 +22,15 @@ namespace
 
 REGISTER_FUNCTION(ChdbVersion)
 {
-    factory.registerFunction<FunctionChdbVersion>(
+    factory.registerFunction<FunctionChdbVersion>(FunctionDocumentation
         {
-        R"(
+          .description=R"(
 Returns the version of chDB.  The result type is String.
-        )",
-        Documentation::Examples{{"chdb", "SELECT chdb()"}},
-        Documentation::Categories{"String"}
-        }, FunctionFactory::CaseInsensitive);
+)",
+          .examples{{"chdb", "SELECT chdb();", ""}},
+          .categories{"String"}
+        },
+        FunctionFactory::CaseInsensitive);
 }
 }
 #endif