Added FindCwrap, add to pythonpath

cmake/Modules/FindCwrap.cmake

@@ -0,0 +1,49 @@
+# Find the Python wrappers for module cwrap from ert
+#
+# Set the cache variable CWRAP_PYTHON_PATH to the install location of the root
+# ert package.
+
+find_package(PythonInterp)
+if(PYTHONINTERP_FOUND)
+
+  # We try to find the cwrap Python distribution. This is done by running Python
+  # code which tries to 'import cwrap' and prints out the path to the module if
+  # the import succeeds.
+  #
+  # The normal Python import machinery is employed, so if you have installed cwrap
+  # python in a default location, or alternatively set the PYTHONPATH variable the
+  # cwrap Python distribution will eventually be found there, independently of the
+  # alternatives which are tested with the ${PATH_LIST} variable.
+
+  if (EXISTS "/etc/debian_version")
+    set( PYTHON_PACKAGE_PATH "dist-packages")
+  else()
+    set( PYTHON_PACKAGE_PATH "site-packages")
+  endif()
+  set(PYTHON_INSTALL_PREFIX  "lib/python${PYTHON_VERSION_MAJOR}.${PYTHON_VERSION_MINOR}/${PYTHON_PACKAGE_PATH}"  CACHE STRING "Subdirectory to install Python modules in")
+
+  set(PATH_LIST)
+  if (ERT_ROOT)
+    list(APPEND PATH_LIST ${ERT_ROOT})
+  endif()
+  list(APPEND PATH_LIST ${CMAKE_PREFIX_PATH})
+
+  # Add various popular sibling alternatives.
+  list(APPEND PATH_LIST "${PROJECT_SOURCE_DIR}/../ert/build"
+    "${PROJECT_BINARY_DIR}/../ert-build")
+
+  foreach( PATH ${PATH_LIST})
+    set( python_code "import sys; sys.path.insert(0 , '${PATH}/${PYTHON_INSTALL_PREFIX}'); import os.path; import inspect; import cwrap; print os.path.dirname(os.path.dirname(inspect.getfile(cwrap)))")
+    execute_process( COMMAND ${PYTHON_EXECUTABLE} -c "${python_code}"
+      RESULT_VARIABLE import_result
+      OUTPUT_VARIABLE stdout_output
+      ERROR_VARIABLE stderr_output
+      OUTPUT_STRIP_TRAILING_WHITESPACE )
+
+    if (${import_result} EQUAL 0)
+      set( CWRAP_PYTHON_PATH ${stdout_output} CACHE PATH "Python path for cwrap" )
+      break()
+    endif()
+  endforeach()
+endif()
+find_package_handle_standard_args("Cwrap" DEFAULT_MSG CWRAP_PYTHON_PATH)

cmake/Modules/OpmPythonTest.cmake

@@ -3,5 +3,5 @@ function (opm_add_python_test TEST_NAME TEST_SCRIPT)
              WORKING_DIRECTORY ${PROJECT_BINARY_DIR}
              COMMAND ${TEST_SCRIPT} ${ARGN})
 
-    set_property(TEST ${TEST_NAME} PROPERTY ENVIRONMENT "PYTHONPATH=${ERT_PYTHON_PATH}:${PYTHONPATH}")
+           set_property(TEST ${TEST_NAME} PROPERTY ENVIRONMENT "PYTHONPATH=${ERT_PYTHON_PATH}:${CWRAP_PYTHON_PATH}:${PYTHONPATH}")
 endfunction(opm_add_python_test)