aboutsummaryrefslogtreecommitdiff
path: root/cmake/UseVala.cmake
diff options
context:
space:
mode:
Diffstat (limited to 'cmake/UseVala.cmake')
-rw-r--r--cmake/UseVala.cmake241
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)
+