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|
#.rst:
#
# The following functions are defined:
#
# .. cmake:command:: add_python_library
#
# Add a library that contains a mix of C, C++, Fortran, Cython, F2PY, Template,
# and Tempita sources. The required targets are automatically generated to
# "lower" source files from their high-level representation to a file that the
# compiler can accept.
#
#
# add_python_library(<Name>
# SOURCES [source1 [source2 ...]]
# [INCLUDE_DIRECTORIES [dir1 [dir2 ...]]
# [LINK_LIBRARIES [lib1 [lib2 ...]]
# [DEPENDS [source1 [source2 ...]]])
#
#
# Example usage
# ^^^^^^^^^^^^^
#
# .. code-block:: cmake
#
# find_package(PythonExtensions)
#
# file(GLOB arpack_sources ARPACK/SRC/*.f ARPACK/UTIL/*.f)
#
# add_python_library(arpack_scipy
# SOURCES ${arpack_sources}
# ${g77_wrapper_sources}
# INCLUDE_DIRECTORIES ARPACK/SRC
# )
#
# .. cmake:command:: add_python_extension
#
# Add a extension that contains a mix of C, C++, Fortran, Cython, F2PY, Template,
# and Tempita sources. The required targets are automatically generated to
# "lower" source files from their high-level representation to a file that the
# compiler can accept.
#
#
# add_python_extension(<Name>
# SOURCES [source1 [source2 ...]]
# [INCLUDE_DIRECTORIES [dir1 [dir2 ...]]
# [LINK_LIBRARIES [lib1 [lib2 ...]]
# [DEPENDS [source1 [source2 ...]]])
#
#
# Example usage
# ^^^^^^^^^^^^^
#
# .. code-block:: cmake
#
# find_package(PythonExtensions)
#
# file(GLOB arpack_sources ARPACK/SRC/*.f ARPACK/UTIL/*.f)
#
# add_python_extension(arpack_scipy
# SOURCES ${arpack_sources}
# ${g77_wrapper_sources}
# INCLUDE_DIRECTORIES ARPACK/SRC
# )
#
#
#=============================================================================
# Copyright 2011 Kitware, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#=============================================================================
macro(_remove_whitespace _output)
string(REGEX REPLACE "[ \r\n\t]+" " " ${_output} "${${_output}}")
string(STRIP "${${_output}}" ${_output})
endmacro()
function(add_python_library _name)
set(options STATIC SHARED MODULE)
set(multiValueArgs SOURCES INCLUDE_DIRECTORIES LINK_LIBRARIES COMPILE_DEFINITIONS DEPENDS)
cmake_parse_arguments(_args "${options}" "" "${multiValueArgs}" ${ARGN} )
# Validate arguments to allow simpler debugging
if(NOT _args_SOURCES)
message(
FATAL_ERROR
"You have called add_python_library for library ${_name} without "
"any source files. This typically indicates a problem with "
"your CMakeLists.txt file"
)
endif()
# Initialize the list of sources
set(_sources ${_args_SOURCES})
# Generate targets for all *.src files
set(_processed )
foreach(_source IN LISTS _sources)
if(${_source} MATCHES ".pyf.src$" OR ${_source} MATCHES "\\.f\\.src$")
if(NOT NumPy_FOUND)
message(
FATAL_ERROR
"NumPy is required to process *.src Template files"
)
endif()
string(REGEX REPLACE "\\.[^.]*$" "" _source_we ${_source})
add_custom_command(
OUTPUT ${_source_we}
COMMAND ${NumPy_FROM_TEMPLATE_EXECUTABLE}
${CMAKE_CURRENT_SOURCE_DIR}/${_source}
${CMAKE_CURRENT_BINARY_DIR}/${_source_we}
DEPENDS ${_source} ${_args_DEPENDS}
COMMENT "Generating ${_source_we} from template ${_source}"
)
list(APPEND _processed ${_source_we})
elseif(${_source} MATCHES "\\.c\\.src$")
if(NOT NumPy_FOUND)
message(
FATAL_ERROR
"NumPy is required to process *.src Template files"
)
endif()
string(REGEX REPLACE "\\.[^.]*$" "" _source_we ${_source})
add_custom_command(
OUTPUT ${_source_we}
COMMAND ${NumPy_CONV_TEMPLATE_EXECUTABLE}
${CMAKE_CURRENT_SOURCE_DIR}/${_source}
${CMAKE_CURRENT_BINARY_DIR}/${_source_we}
DEPENDS ${_source} ${_args_DEPENDS}
COMMENT "Generating ${_source_we} from template ${_source}"
)
list(APPEND _processed ${_source_we})
elseif(${_source} MATCHES "\\.pyx\\.in$")
if(NOT Cython_FOUND)
message(
FATAL_ERROR
"Cython is required to process *.in Tempita files"
)
endif()
string(REGEX REPLACE "\\.[^.]*$" "" _source_we ${_source})
configure_file(
${CMAKE_CURRENT_SOURCE_DIR}/${_source}
${CMAKE_CURRENT_BINARY_DIR}/${_source}
COPYONLY
)
set(_tempita_command
"
import os;
import sys;
from Cython.Tempita import Template;
cwd = os.getcwd();
open(os.path.join(cwd, '${_source_we}'), 'w+')
.write(
Template.from_filename(os.path.join(cwd, '${_source}'),
encoding=sys.getdefaultencoding()).substitute()
)
"
)
_remove_whitespace(_tempita_command)
add_custom_command(
OUTPUT ${_source_we}
COMMAND ${PYTHON_EXECUTABLE} -c "${_tempita_command}"
DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/${_source}"
${_args_DEPENDS}
)
list(APPEND _processed ${_source_we})
else()
list(APPEND _processed ${_source})
endif()
endforeach()
set(_sources ${_processed})
# If we're building a Python extension and we're given only Fortran sources,
# We can conclude that we need to generate a Fortran interface file
list(FILTER _processed EXCLUDE REGEX "(\\.f|\\.f90)$")
if(NOT _processed AND _args_MODULE)
if(NOT NumPy_FOUND)
message(
FATAL_ERROR
"NumPy is required to process *.pyf F2PY files"
)
endif()
set(_sources_abs )
foreach(_source IN LISTS _sources)
if(NOT IS_ABSOLUTE ${_source})
set(_source ${CMAKE_CURRENT_SOURCE_DIR}/${_source})
endif()
list(APPEND _sources_abs ${_source})
endforeach()
add_custom_command(
OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${_name}.pyf
WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
COMMAND ${F2PY_EXECUTABLE}
ARGS -h ${_name}.pyf -m ${_name} --overwrite-signature
${_sources_abs}
DEPENDS ${_sources} ${_args_DEPENDS}
COMMENT "Generating ${_name} Fortran interface file"
)
list(APPEND _sources ${_name}.pyf)
endif()
# Are there F2PY targets?
set(_has_f2py_targets OFF)
set(_has_cython_targets OFF)
# Generate targets for all *.pyx and *.pyf files
set(_processed )
foreach(_source IN LISTS _sources)
if(${_source} MATCHES \\.pyx$)
if(NOT Cython_FOUND)
message(
FATAL_ERROR
"Cython is required to process *.pyx Cython files"
)
endif()
string(REGEX REPLACE "\\.[^.]*$" "" _pyx_target_name ${_source})
set(_has_cython_targets ON)
add_cython_target(${_pyx_target_name}
${_source}
OUTPUT_VAR _pyx_target_output
DEPENDS ${_args_DEPENDS}
)
list(APPEND _processed ${_pyx_target_output})
elseif(${_source} MATCHES \\.pyf$)
if(NOT NumPy_FOUND)
message(
FATAL_ERROR
"NumPy is required to process *.pyf F2PY files"
)
endif()
string(REGEX REPLACE "\\.[^.]*$" "" _pyf_target_name ${_source})
set(_has_f2py_targets ON)
add_f2py_target(${_pyf_target_name}
${_source}
OUTPUT_VAR _pyf_target_output
DEPENDS ${_args_DEPENDS}
)
list(APPEND _processed ${_pyf_target_output})
else()
list(APPEND _processed ${_source})
endif()
endforeach()
set(_sources ${_processed})
if(_args_SHARED)
add_library(${_name} SHARED ${_sources})
elseif(_args_MODULE)
add_library(${_name} MODULE ${_sources})
else()
# Assume static
add_library(${_name} STATIC ${_sources})
endif()
target_include_directories(${_name} PRIVATE ${_args_INCLUDE_DIRECTORIES})
target_link_libraries(${_name} ${SKBUILD_LINK_LIBRARIES_KEYWORD} ${_args_LINK_LIBRARIES})
if(_has_f2py_targets)
target_include_directories(${_name} PRIVATE ${F2PY_INCLUDE_DIRS})
target_link_libraries(${_name} ${SKBUILD_LINK_LIBRARIES_KEYWORD} ${F2PY_LIBRARIES})
endif()
if(_args_COMPILE_DEFINITIONS)
target_compile_definitions(${_name} PRIVATE ${_args_COMPILE_DEFINITIONS})
endif()
if(_args_DEPENDS)
add_custom_target(
"${_name}_depends"
DEPENDS ${_args_DEPENDS}
)
add_dependencies(${_name} "${_name}_depends")
endif()
endfunction()
function(add_python_extension _name)
# FIXME: make sure that extensions with the same name can happen
# in multiple directories
set(multiValueArgs SOURCES INCLUDE_DIRECTORIES LINK_LIBRARIES COMPILE_DEFINITIONS DEPENDS)
cmake_parse_arguments(_args "" "" "${multiValueArgs}" ${ARGN} )
# Validate arguments to allow simpler debugging
if(NOT _args_SOURCES)
message(
FATAL_ERROR
"You have called add_python_extension for library ${_name} without "
"any source files. This typically indicates a problem with "
"your CMakeLists.txt file"
)
endif()
add_python_library(${_name} MODULE
SOURCES ${_args_SOURCES}
INCLUDE_DIRECTORIES ${_args_INCLUDE_DIRECTORIES}
LINK_LIBRARIES ${_args_LINK_LIBRARIES}
COMPILE_DEFINITIONS ${_args_COMPILE_DEFINITIONS}
DEPENDS ${_args_DEPENDS}
)
python_extension_module(${_name})
file(RELATIVE_PATH _relative "${CMAKE_SOURCE_DIR}" "${CMAKE_CURRENT_SOURCE_DIR}")
if(_relative STREQUAL "")
set(_relative ".")
endif()
install(
TARGETS ${_name}
LIBRARY DESTINATION "${_relative}"
RUNTIME DESTINATION "${_relative}"
)
endfunction()
|
