CMake/FindPythonModule.cmake at master · backglite/CMake · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
# Find a specific Python module.
#
# Will set:
# PYTHON${NAME_UPPER}_FOUND if found;
# PYTHON${NAME_UPPER}_VERSION if module __version__ is defined;
# where ${NAME_UPPER} is the capitalized module name.
#
# find_python_module(${MODULE}) will emulate find_package()'s 'quiet' behaviour
# if Python${MODULE}_FIND_QUIETLY is set to a true value, and similarly
# will emulate 'required' behaviour if Python${MODULE}_FIND_REQUIRED
# is set to a true value. (MODULE is case-sensitive.)

macro(cache_test_and_setKEYMSGFOUND)
if("${MSG}"STREQUAL"${MESSAGE_CACHE_BY_${KEY}}")
set("${FOUND}" 1)
 else()
set("${FOUND}" 0)
set("MESSAGE_CACHE_BY_${KEY}""${MSG}"CACHEINTERNAL"cached reporting message")
 endif()
endmacro()

# Don't repeat a message; check by looking up key in cache
macro(fail_messagekeymsg)
if(REQUIRED)
message(FATAL_ERROR"${msg}")
elseif (NOT QUIET)
cache_test_and_set("${key}""${msg}"FOUND)
if(NOT FOUND)
message(STATUS"${msg}")
 endif()
 endif()
endmacro()

macro(success_messagekeymsg)
if(NOT QUIET)
cache_test_and_set("${key}""${msg}"FOUND)
if(NOT FOUND)
message(STATUS"${msg}")
 endif()
 endif()
endmacro()

function(find_python_moduleMODULENAME)
string(TOUPPER${MODULENAME} NAME_UPPER)

set(QUIET ${Python${MODULENAME}_FIND_QUIETLY})
set(REQUIRED ${Python${MODULENAME}_FIND_REQUIRED})

find_package(PythonInterp${QUIET}${REQUIRED})

if(NOT PYTHON_EXECUTABLE)
fail_message(PYTHON_${MODULENAME}"No python interpreter found")
set(PYTHON${NAME_UPPER}_FOUND 0)
 else()
execute_process(COMMAND${PYTHON_EXECUTABLE}-c
"import ${MODULENAME} as x; print x.__version__ if hasattr(x,'__version__') else ''"
ERROR_QUIET
RESULT_VARIABLERV
OUTPUT_VARIABLEMODVER
OUTPUT_STRIP_TRAILING_WHITESPACE)
if(NOT RV)
set(PYTHON${NAME_UPPER}_FOUND 1 CACHEINTERNAL"Python module ${MODULENAME} found")
set(PYTHON${NAME_UPPER}_VERSION "${MODVER}"CACHEINTERNAL"Python module ${MODULENAME} version")
success_message(PYTHON${MODULENAME}"Found python module ${MODULENAME}: (found version \"${MODVER}\")")
 else()
fail_message(PYTHON${MODULENAME}"Could NOT find python module ${MODULENAME}")
 endif()
 endif()
endfunction()