1. adjust CMakeLists.txt to enabling checking unixodbc existence

2. use install.sh to install odbcinst/odbc record in system
3. add packages (unixodbc/unixodbc-dev) to install in .travis.yml

.travis.yml

@@ -32,6 +32,8 @@ matrix:
           - python3-setuptools
           - valgrind
           - psmisc
+          - unixodbc
+          - unixodbc-dev
 
     before_script:
       - export TZ=Asia/Harbin

src/CMakeLists.txt

@@ -21,5 +21,5 @@ ADD_SUBDIRECTORY(wal)
 ADD_SUBDIRECTORY(cq)
 ADD_SUBDIRECTORY(dnode)
 ADD_SUBDIRECTORY(connector/odbc)
-# ADD_SUBDIRECTORY(connector/jdbc)
+ADD_SUBDIRECTORY(connector/jdbc)
 

src/connector/odbc/CMakeLists.txt

 CMAKE_MINIMUM_REQUIRED(VERSION 2.8)
 PROJECT(TDengine)
 
-AUX_SOURCE_DIRECTORY(src SRC)
+IF (TD_LINUX_64)
+  find_program(HAVE_ODBCINST NAMES odbcinst)
 
-# generate dynamic library (*.so)
-ADD_LIBRARY(todbc SHARED ${SRC})
-SET_TARGET_PROPERTIES(todbc PROPERTIES CLEAN_DIRECT_OUTPUT 1)
-SET_TARGET_PROPERTIES(todbc PROPERTIES VERSION ${TD_VER_NUMBER} SOVERSION 1)
-TARGET_LINK_LIBRARIES(todbc taos)
+  IF (HAVE_ODBCINST)
+    include(CheckSymbolExists)
+    # shall we revert CMAKE_REQUIRED_LIBRARIES and how?
+    set(CMAKE_REQUIRED_LIBRARIES odbc)
+    check_symbol_exists(SQLExecute "sql.h" HAVE_ODBC_DEV)
+    if(NOT (HAVE_ODBC_DEV))
+      unset(HAVE_ODBC_DEV CACHE)
+      message(WARNING "unixodbc-dev is not installed yet, you may install it under ubuntu by typing: sudo apt install unixodbc-dev")
+    else ()
+      message(STATUS "unixodbc/unixodbc-dev are installed, and odbc connector will be built")
+      AUX_SOURCE_DIRECTORY(src SRC)
 
-install(CODE "execute_process(COMMAND sudo odbcinst -i -d -f ${CMAKE_CURRENT_SOURCE_DIR}/src/template.ini
-                              COMMAND odbcinst -i -s -f ${CMAKE_CURRENT_SOURCE_DIR}/src/template.dsn
-                              COMMAND echo odbc install done)")
+      # generate dynamic library (*.so)
+      ADD_LIBRARY(todbc SHARED ${SRC})
+      SET_TARGET_PROPERTIES(todbc PROPERTIES CLEAN_DIRECT_OUTPUT 1)
+      SET_TARGET_PROPERTIES(todbc PROPERTIES VERSION ${TD_VER_NUMBER} SOVERSION 1)
+      TARGET_LINK_LIBRARIES(todbc taos)
 
-ADD_SUBDIRECTORY(tests)
+      install(CODE "execute_process(COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/src/install.sh ${CMAKE_BINARY_DIR})")
+
+      ADD_SUBDIRECTORY(tests)
+    endif()
+  ELSE ()
+    message(WARNING "unixodbc is not installed yet, you may install it under ubuntu by typing: sudo apt install unixodbc-dev")
+  ENDIF ()
+ENDIF ()
 

src/connector/odbc/src/install.sh

+#!/bin/bash
+
+set -u
+
+BLD_DIR="$1"
+
+rm -f "${BLD_DIR}/template.ini"
+rm -f "${BLD_DIR}/template.dsn"
+
+cat > "${BLD_DIR}/template.ini" <<EOF
+[TAOS]
+Description = taos odbc driver
+Driver = ${BLD_DIR}/build/lib/libtodbc.so
+EOF
+
+cat > "${BLD_DIR}/template.dsn" <<EOF
+[TAOS_DSN]
+Description=Connection to TAOS
+Driver=TAOS
+EOF
+
+sudo odbcinst -i -d -f "${BLD_DIR}/template.ini" &&
+odbcinst -i -s -f "${BLD_DIR}/template.dsn" &&
+echo "odbc install done"
+

src/connector/odbc/src/template.dsn

-[TAOS_DSN]
-Description=Connection to TAOS
-Driver=TAOS
-Server=localhost:1234
-

src/connector/odbc/src/template.ini

-[TAOS]
-Description = taos odbc driver
-Driver = /home/xxh/Documents/TDengine/debug/build/lib/libtodbc.so
-