125 lines
5.3 KiB
CMake
125 lines
5.3 KiB
CMake
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include(CMakeParseArguments)
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# Generates the resource XML controlling file from resource list (and saves it
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# to xml_path). It's not recommended to use this function directly, since it
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# doesn't handle invalid arguments. It is used by the function
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# COMPILE_GRESOURCES() to create a custom command, so that this function is
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# invoked at build-time in script mode from CMake.
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function(GENERATE_GXML xml_path)
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# Available options:
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# COMPRESS_ALL, NO_COMPRESS_ALL Overrides the COMPRESS flag in all
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# registered resources.
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# STRIPBLANKS_ALL, NO_STRIPBLANKS_ALL Overrides the STRIPBLANKS flag in all
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# registered resources.
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# TOPIXDATA_ALL, NO_TOPIXDATA_ALL Overrides the TOPIXDATA flag in all
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# registered resources.
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set(GXML_OPTIONS COMPRESS_ALL NO_COMPRESS_ALL
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STRIPBLANKS_ALL NO_STRIPBLANKS_ALL
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TOPIXDATA_ALL NO_TOPIXDATA_ALL)
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# Available one value options:
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# PREFIX Overrides the resource prefix that is prepended to each
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# relative file name in registered resources.
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set(GXML_ONEVALUEARGS PREFIX)
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# Available multi-value options:
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# RESOURCES The list of resource files. Whether absolute or relative path is
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# equal, absolute paths are stripped down to relative ones. If the
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# absolute path is not inside the given base directory SOURCE_DIR
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# or CMAKE_SOURCE_DIR (if SOURCE_DIR is not overriden), this
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# function aborts.
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set(GXML_MULTIVALUEARGS RESOURCES)
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# Parse the arguments.
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cmake_parse_arguments(GXML_ARG
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"${GXML_OPTIONS}"
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"${GXML_ONEVALUEARGS}"
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"${GXML_MULTIVALUEARGS}"
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"${ARGN}")
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# Variable to store the double-quote (") string. Since escaping
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# double-quotes in strings is not possible we need a helper variable that
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# does this job for us.
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set(Q \")
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# Process resources and generate XML file.
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# Begin with the XML header and header nodes.
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set(GXML_XML_FILE "<?xml version=${Q}1.0${Q} encoding=${Q}UTF-8${Q}?>")
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set(GXML_XML_FILE "${GXML_XML_FILE}<gresources><gresource prefix=${Q}")
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# Set the prefix for the resources. Depending on the user-override we choose
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# the standard prefix "/" or the override.
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if (GXML_ARG_PREFIX)
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set(GXML_XML_FILE "${GXML_XML_FILE}${GXML_ARG_PREFIX}")
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else()
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set(GXML_XML_FILE "${GXML_XML_FILE}/")
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endif()
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set(GXML_XML_FILE "${GXML_XML_FILE}${Q}>")
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# Process each resource.
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foreach(res ${GXML_ARG_RESOURCES})
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if ("${res}" STREQUAL "COMPRESS")
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set(GXML_COMPRESSION_FLAG ON)
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elseif ("${res}" STREQUAL "STRIPBLANKS")
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set(GXML_STRIPBLANKS_FLAG ON)
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elseif ("${res}" STREQUAL "TOPIXDATA")
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set(GXML_TOPIXDATA_FLAG ON)
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else()
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# The file name.
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set(GXML_RESOURCE_PATH "${res}")
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# Append to real resource file dependency list.
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list(APPEND GXML_RESOURCES_DEPENDENCIES ${GXML_RESOURCE_PATH})
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# Assemble <file> node.
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set(GXML_RES_LINE "<file")
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if ((GXML_ARG_COMPRESS_ALL OR GXML_COMPRESSION_FLAG) AND NOT
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GXML_ARG_NO_COMPRESS_ALL)
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set(GXML_RES_LINE "${GXML_RES_LINE} compressed=${Q}true${Q}")
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endif()
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# Check preprocess flag validity.
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if ((GXML_ARG_STRIPBLANKS_ALL OR GXML_STRIPBLANKS_FLAG) AND
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(GXML_ARG_TOPIXDATA_ALL OR GXML_TOPIXDATA_FLAG))
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set(GXML_ERRMSG "Resource preprocessing option conflict. Tried")
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set(GXML_ERRMSG "${GXML_ERRMSG} to specify both, STRIPBLANKS")
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set(GXML_ERRMSG "${GXML_ERRMSG} and TOPIXDATA. In resource")
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set(GXML_ERRMSG "${GXML_ERRMSG} ${GXML_RESOURCE_PATH} in")
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set(GXML_ERRMSG "${GXML_ERRMSG} function COMPILE_GRESOURCES.")
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message(FATAL_ERROR ${GXML_ERRMSG})
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endif()
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if ((GXML_ARG_STRIPBLANKS_ALL OR GXML_STRIPBLANKS_FLAG) AND NOT
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GXML_ARG_NO_STRIPBLANKS_ALL)
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set(GXML_RES_LINE "${GXML_RES_LINE} preprocess=")
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set(GXML_RES_LINE "${GXML_RES_LINE}${Q}xml-stripblanks${Q}")
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elseif((GXML_ARG_TOPIXDATA_ALL OR GXML_TOPIXDATA_FLAG) AND NOT
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GXML_ARG_NO_TOPIXDATA_ALL)
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set(GXML_RES_LINE "${GXML_RES_LINE} preprocess=")
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set(GXML_RES_LINE "${GXML_RES_LINE}${Q}to-pixdata${Q}")
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endif()
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set(GXML_RES_LINE "${GXML_RES_LINE}>${GXML_RESOURCE_PATH}</file>")
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# Append to file string.
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set(GXML_XML_FILE "${GXML_XML_FILE}${GXML_RES_LINE}")
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# Unset variables.
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unset(GXML_COMPRESSION_FLAG)
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unset(GXML_STRIPBLANKS_FLAG)
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unset(GXML_TOPIXDATA_FLAG)
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endif()
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endforeach()
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# Append closing nodes.
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set(GXML_XML_FILE "${GXML_XML_FILE}</gresource></gresources>")
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# Use "file" function to generate XML controlling file.
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get_filename_component(xml_path_only_name "${xml_path}" NAME)
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file(WRITE ${xml_path} ${GXML_XML_FILE})
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endfunction()
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