Fix dependency check for building documentation
Build with documentation fails if the required 'sphinx rtd theme' is
not available. Check if dependency is installed before building with
documentation.
Add Python3 as requirement for building documentation.
Change-Id: I5edc5d7374864990e625a5efb358f5a23b3c50fe
diff --git a/cmake/FindSphinx.cmake b/cmake/FindSphinx.cmake
index 220108d..2ba3c81 100644
--- a/cmake/FindSphinx.cmake
+++ b/cmake/FindSphinx.cmake
@@ -43,24 +43,30 @@
/opt/local/bin
DOC "Sphinx documentation generator")
-if (NOT SPHINX_EXECUTABLE)
- set(_Python_VERSIONS 2.7 2.6 2.5 2.4 2.3 2.2 2.1 2.0 1.6 1.5)
+if (SPHINX_EXECUTABLE)
- foreach (_version ${_Python_VERSIONS})
- set(_sphinx_NAMES sphinx-build-${_version})
+ find_package(PythonInterp 3)
- find_program(SPHINX_EXECUTABLE
- NAMES ${_sphinx_NAMES}
- PATHS
- /usr/bin
- /usr/local/bin
- /opt/local/bin
- DOC "Sphinx documentation generator")
- endforeach ()
+ if(PYTHONINTERP_FOUND)
+ # Check for sphinx theme dependency for documentation
+ execute_process(
+ COMMAND ${PYTHON_EXECUTABLE} -m pip show sphinx-rtd-theme
+ RESULT_VARIABLE SPHINX_RTD_THEME
+ OUTPUT_QUIET
+ ERROR_QUIET
+ )
+ endif ()
+
+ if (${SPHINX_RTD_THEME} EQUAL 0)
+ set(SPHINX_RTD_THEME TRUE)
+ else ()
+ set(SPHINX_RTD_THEME FALSE)
+ endif ()
+
endif ()
include(FindPackageHandleStandardArgs)
-find_package_handle_standard_args(Sphinx DEFAULT_MSG SPHINX_EXECUTABLE)
+find_package_handle_standard_args(Sphinx DEFAULT_MSG SPHINX_EXECUTABLE SPHINX_RTD_THEME)
mark_as_advanced(SPHINX_EXECUTABLE)
