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Diffstat (limited to 'cmake/UseVala.cmake')
| -rw-r--r-- | cmake/UseVala.cmake | 241 |
1 files changed, 241 insertions, 0 deletions
diff --git a/cmake/UseVala.cmake b/cmake/UseVala.cmake new file mode 100644 index 0000000..f092769 --- /dev/null +++ b/cmake/UseVala.cmake @@ -0,0 +1,241 @@ +# - Precompilation of Vala/Genie source files into C sources +# Makes use of the parallel build ability introduced in Vala 0.11. Derived +# from a similar module by Jakob Westhoff and the original GNU Make rules. +# Might be a bit oversimplified. +# +# This module defines three functions. The first one: +# +# vala_init (id +# [DIRECTORY dir] - Output directory (binary dir by default) +# [PACKAGES package...] - Package dependencies +# [OPTIONS option...] - Extra valac options +# [CUSTOM_VAPIS file...]) - Custom vapi files to include in the build +# [DEPENDS targets...]) - Extra dependencies for code generation +# +# initializes a single precompilation unit using the given arguments. +# You can put files into it via the following function: +# +# vala_add (id source.vala +# [DEPENDS source...]) - Vala/Genie source or .vapi dependencies +# +# Finally retrieve paths for generated C files by calling: +# +# vala_finish (id +# [SOURCES sources_var] - Input Vala/Genie sources +# [OUTPUTS outputs_var] - Output C sources +# [GENERATE_HEADER id.h - Generate id.h and id_internal.h +# [GENERATE_VAPI id.vapi] - Generate a vapi file +# [GENERATE_SYMBOLS id.def]]) - Generate a list of public symbols +# + +#============================================================================= +# Copyright Přemysl Janouch 2011 +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are met: +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' +# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR +# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY +# OF SUCH DAMAGE. +#============================================================================= + +find_package (Vala 0.18 REQUIRED) +include (CMakeParseArguments) + +function (vala_init id) + set (_multi_value PACKAGES OPTIONS CUSTOM_VAPIS DEPENDS) + cmake_parse_arguments (arg "" "DIRECTORY" "${_multi_value}" ${ARGN}) + + if (arg_DIRECTORY) + set (directory ${arg_DIRECTORY}) + if (NOT IS_DIRECTORY ${directory}) + file (MAKE_DIRECTORY ${directory}) + endif (NOT IS_DIRECTORY ${directory}) + else (arg_DIRECTORY) + set (directory ${CMAKE_CURRENT_BINARY_DIR}) + endif (arg_DIRECTORY) + + set (pkg_opts) + foreach (pkg ${arg_PACKAGES}) + list (APPEND pkg_opts "--pkg=${pkg}") + endforeach (pkg) + + set (VALA_${id}_DIR "${directory}" PARENT_SCOPE) + set (VALA_${id}_ARGS ${pkg_opts} ${arg_OPTIONS} + ${arg_CUSTOM_VAPIS} PARENT_SCOPE) + set (VALA_${id}_DEPENDS ${arg_DEPENDS} + PARENT_SCOPE) + + set (VALA_${id}_SOURCES "" PARENT_SCOPE) + set (VALA_${id}_OUTPUTS "" PARENT_SCOPE) + set (VALA_${id}_FAST_VAPI_FILES "" PARENT_SCOPE) + set (VALA_${id}_FAST_VAPI_ARGS "" PARENT_SCOPE) +endfunction (vala_init) + +function (vala_add id file) + cmake_parse_arguments (arg "" "" "DEPENDS" ${ARGN}) + + if (NOT IS_ABSOLUTE "${file}") + set (file "${CMAKE_CURRENT_SOURCE_DIR}/${file}") + endif (NOT IS_ABSOLUTE "${file}") + + get_filename_component (output_name "${file}" NAME) + get_filename_component (output_base "${file}" NAME_WE) + set (output_base "${VALA_${id}_DIR}/${output_base}") + + # XXX: It would be best to have it working without touching the vapi + # but it appears this cannot be done in CMake. + add_custom_command (OUTPUT "${output_base}.vapi" + COMMAND ${VALA_COMPILER} "${file}" "--fast-vapi=${output_base}.vapi" + COMMAND ${CMAKE_COMMAND} -E touch "${output_base}.vapi" + DEPENDS "${file}" + COMMENT "Generating a fast vapi for ${output_name}" VERBATIM) + + set (vapi_opts) + set (vapi_depends) + foreach (vapi ${arg_DEPENDS}) + if (NOT IS_ABSOLUTE "${vapi}") + set (vapi "${VALA_${id}_DIR}/${vapi}.vapi") + endif (NOT IS_ABSOLUTE "${vapi}") + + list (APPEND vapi_opts "--use-fast-vapi=${vapi}") + list (APPEND vapi_depends "${vapi}") + endforeach (vapi) + + add_custom_command (OUTPUT "${output_base}.c" + COMMAND ${VALA_COMPILER} "${file}" -C ${vapi_opts} ${VALA_${id}_ARGS} + COMMAND ${CMAKE_COMMAND} -E touch "${output_base}.c" + DEPENDS "${file}" ${vapi_depends} ${VALA_${id}_DEPENDS} + WORKING_DIRECTORY "${VALA_${id}_DIR}" + COMMENT "Precompiling ${output_name}" VERBATIM) + + set (VALA_${id}_SOURCES ${VALA_${id}_SOURCES} + "${file}" PARENT_SCOPE) + set (VALA_${id}_OUTPUTS ${VALA_${id}_OUTPUTS} + "${output_base}.c" PARENT_SCOPE) + set (VALA_${id}_FAST_VAPI_FILES ${VALA_${id}_FAST_VAPI_FILES} + "${output_base}.vapi" PARENT_SCOPE) + set (VALA_${id}_FAST_VAPI_ARGS ${VALA_${id}_FAST_VAPI_ARGS} + "--use-fast-vapi=${output_base}.vapi" PARENT_SCOPE) +endfunction (vala_add) + +function (vala_finish id) + set (_one_value SOURCES OUTPUTS + GENERATE_VAPI GENERATE_HEADER GENERATE_SYMBOLS) + cmake_parse_arguments (arg "" "${_one_value}" "" ${ARGN}) + + if (arg_SOURCES) + set (${arg_SOURCES} ${VALA_${id}_SOURCES} PARENT_SCOPE) + endif (arg_SOURCES) + + if (arg_OUTPUTS) + set (${arg_OUTPUTS} ${VALA_${id}_OUTPUTS} PARENT_SCOPE) + endif (arg_OUTPUTS) + + set (outputs) + set (export_args) + + if (arg_GENERATE_VAPI) + if (NOT IS_ABSOLUTE "${arg_GENERATE_VAPI}") + set (arg_GENERATE_VAPI + "${VALA_${id}_DIR}/${arg_GENERATE_VAPI}") + endif (NOT IS_ABSOLUTE "${arg_GENERATE_VAPI}") + + list (APPEND outputs "${arg_GENERATE_VAPI}") + list (APPEND export_args "--internal-vapi=${arg_GENERATE_VAPI}") + + if (NOT arg_GENERATE_HEADER) + message (FATAL_ERROR "Header generation required for vapi") + endif (NOT arg_GENERATE_HEADER) + endif (arg_GENERATE_VAPI) + + if (arg_GENERATE_SYMBOLS) + if (NOT IS_ABSOLUTE "${arg_GENERATE_SYMBOLS}") + set (arg_GENERATE_SYMBOLS + "${VALA_${id}_DIR}/${arg_GENERATE_SYMBOLS}") + endif (NOT IS_ABSOLUTE "${arg_GENERATE_SYMBOLS}") + + list (APPEND outputs "${arg_GENERATE_SYMBOLS}") + list (APPEND export_args "--symbols=${arg_GENERATE_SYMBOLS}") + + if (NOT arg_GENERATE_HEADER) + message (FATAL_ERROR "Header generation required for symbols") + endif (NOT arg_GENERATE_HEADER) + endif (arg_GENERATE_SYMBOLS) + + if (arg_GENERATE_HEADER) + if (NOT IS_ABSOLUTE "${arg_GENERATE_HEADER}") + set (arg_GENERATE_HEADER + "${VALA_${id}_DIR}/${arg_GENERATE_HEADER}") + endif (NOT IS_ABSOLUTE "${arg_GENERATE_HEADER}") + + get_filename_component (header_path "${arg_GENERATE_HEADER}" PATH) + get_filename_component (header_name "${arg_GENERATE_HEADER}" NAME_WE) + set (header_base "${header_path}/${header_name}") + get_filename_component (header_ext "${arg_GENERATE_HEADER}" EXT) + + list (APPEND outputs + "${header_base}${header_ext}" + "${header_base}_internal${header_ext}") + list (APPEND export_args + "--header=${header_base}${header_ext}" + "--internal-header=${header_base}_internal${header_ext}") + endif (arg_GENERATE_HEADER) + + if (outputs) + add_custom_command (OUTPUT ${outputs} + COMMAND ${VALA_COMPILER} -C ${VALA_${id}_ARGS} + ${export_args} ${VALA_${id}_FAST_VAPI_ARGS} + DEPENDS ${VALA_${id}_FAST_VAPI_FILES} + COMMENT "Generating vapi/headers/symbols" VERBATIM) + endif (outputs) +endfunction (vala_finish id) + + +function (vapi_gen id) + set (_one_value LIBRARY INPUT) + set (_multi_value PACKAGES) + cmake_parse_arguments (arg "" "${_one_value}" "${_multi_value}" ${ARGN}) + + set(OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${id}.vapi") + if (arg_LIBRARY) + set (OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${arg_LIBRARY}.vapi") + endif (arg_LIBRARY) + + set("${id}_OUTPUT" ${OUTPUT} PARENT_SCOPE) + + set(PACKAGE_LIST) + foreach(PACKAGE ${arg_PACKAGES}) + list(APPEND PACKAGE_LIST "--pkg" ${PACKAGE}) + endforeach() + + add_custom_command( + OUTPUT + ${OUTPUT} + COMMAND + ${VAPI_GEN} + ${PACKAGE_LIST} + --library=${arg_LIBRARY} + ${arg_INPUT} + DEPENDS + ${arg_INPUT} + VERBATIM + ) + + add_custom_target(${id} ALL DEPENDS ${OUTPUT}) +endfunction (vapi_gen id) + |