build: check version before install

cmake/cmake.install

-IF (TD_LINUX)
+IF (EXISTS /var/lib/taos/dnode/dnodeCfg.json)
+  INSTALL(CODE "MESSAGE(\"The default data directory /var/lib/taos contains old data of tdengine 2.x, please clear it before installing!\")")
+ELSEIF (EXISTS C:/TDengine/data/dnode/dnodeCfg.json)
+  INSTALL(CODE "MESSAGE(\"The default data directory C:/TDengine/data contains old data of tdengine 2.x, please clear it before installing!\")")
+ELSEIF (TD_LINUX)
   SET(TD_MAKE_INSTALL_SH "${TD_SOURCE_DIR}/packaging/tools/make_install.sh")
   INSTALL(CODE "MESSAGE(\"make install script: ${TD_MAKE_INSTALL_SH}\")")
   INSTALL(CODE "execute_process(COMMAND bash ${TD_MAKE_INSTALL_SH} ${TD_SOURCE_DIR} ${PROJECT_BINARY_DIR} Linux ${TD_VER_NUMBER})")

packaging/deb/DEBIAN/control

 Package: tdengine
-Version: 1.0.0
+Version: 3.0.0
 Section: utils
 Priority: optional
 #Essential: no

packaging/deb/DEBIAN/preinst

 #!/bin/bash
 
+if [ -f /var/lib/taos/dnode/dnodeCfg.json ]; then
+  echo -e "The default data directory \033[41;37m/var/lib/taos\033[0m contains old data of tdengine 2.x, please clear it before installing!"
+  exit 1
+fi
+
 csudo=""
 if command -v sudo > /dev/null; then
     csudo="sudo "

packaging/deb/DEBIAN/prerm

 #!/bin/bash
 
+if [ $1 -eq "abort-upgrade" ]; then
+  exit 0
+fi
+
 insmetaPath="/usr/local/taos/script"
 
 csudo=""

packaging/rpm/tdengine.spec

@@ -132,6 +132,10 @@ fi
 
 #Scripts executed before installation
 %pre
+if [ -f /var/lib/taos/dnode/dnodeCfg.json ]; then
+  echo -e "The default data directory \033[41;37m/var/lib/taos\033[0m contains old data of tdengine 2.x, please clear it before installing!"
+  exit 1
+fi
 csudo=""
 if command -v sudo > /dev/null; then
     csudo="sudo "