ENH: Factor argument parsing in AddExternalProject
The add_external_project function parses its arguments and puts them in properties of the target it creates. This factors out implementation of the behavior for use by other functions in the module.
This commit is contained in:
Brad King
parent
5bc6869551
commit
c45c862ef4
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@ -4,6 +4,43 @@
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find_package(CVS)
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find_package(Subversion)
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function(_aep_parse_arguments f name ns args)
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# Transfer the arguments to this function into target properties for the
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# new custom target we just added so that we can set up all the build steps
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# correctly based on target properties.
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#
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# We loop through ARGN and consider the namespace starting with an
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# upper-case letter followed by at least two more upper-case letters
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# or underscores to be keywords.
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set(key)
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foreach(arg IN LISTS args)
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if(arg MATCHES "^[A-Z][A-Z_][A-Z_]+$" AND
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NOT arg MATCHES "^(TRUE|FALSE)$")
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# Keyword
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set(key "${arg}")
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if(_aep_keywords_${f} AND NOT key MATCHES "${_aep_keywords_${f}}")
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message(AUTHOR_WARNING "unknown ${f} keyword: ${key}")
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endif()
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elseif(key)
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# Value
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if(NOT arg STREQUAL "")
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set_property(TARGET ${name} APPEND PROPERTY ${ns}${key} "${arg}")
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else()
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get_property(have_key TARGET ${name} PROPERTY ${ns}${key} SET)
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if(have_key)
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get_property(value TARGET ${name} PROPERTY ${ns}${key})
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set_property(TARGET ${name} PROPERTY ${ns}${key} "${value};${arg}")
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else()
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set_property(TARGET ${name} PROPERTY ${ns}${key} "${arg}")
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endif()
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endif()
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else()
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# Missing Keyword
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message(AUTHOR_WARNING "value with no keyword in ${f}")
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endif()
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endforeach()
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endfunction(_aep_parse_arguments)
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function(get_external_project_directories base_dir_var build_dir_var downloads_dir_var install_dir_var sentinels_dir_var source_dir_var tmp_dir_var)
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set(base "${CMAKE_BINARY_DIR}/CMakeExternals")
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@ -483,7 +520,12 @@ function(add_external_project_configure_command name)
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sentinels_dir source_dir tmp_dir)
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get_configure_build_working_dir(${name} working_dir)
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get_property(file_deps TARGET ${name} PROPERTY AEP_FILE_DEPENDS)
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# Depend on other external projects (file-level).
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set(file_deps)
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get_property(deps TARGET ${name} PROPERTY AEP_DEPENDS)
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foreach(arg IN LISTS deps)
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list(APPEND file_deps ${sentinels_dir}/${arg}-done)
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endforeach()
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#message(STATUS "info: name='${name}' file_deps='${file_deps}'")
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# Create the working_dir for configure, build and install steps:
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@ -678,6 +720,7 @@ foreach(key IN ITEMS
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endforeach(key)
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set(_aep_keyword_regex "${_aep_keyword_regex})$")
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set(_aep_keyword_sep)
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set(_aep_keywords_add_external_project "${_aep_keyword_regex}")
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function(add_external_project name)
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get_external_project_directories(base_dir build_dir downloads_dir install_dir
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@ -708,48 +751,12 @@ function(add_external_project name)
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set_target_properties(${name} PROPERTIES AEP_IS_EXTERNAL_PROJECT 1)
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add_dependencies(${name} CMakeExternals)
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_aep_parse_arguments(add_external_project ${name} AEP_ "${ARGN}")
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# Transfer the arguments to this function into target properties for the
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# new custom target we just added so that we can set up all the build steps
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# correctly based on target properties.
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#
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# We loop through ARGN and consider the namespace starting with an
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# upper-case letter followed by at least two more upper-case letters
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# or underscores to be keywords.
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set(key)
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foreach(arg IN LISTS ARGN)
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if(arg MATCHES "^[A-Z][A-Z_][A-Z_]+$" AND
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NOT arg MATCHES "^(TRUE|FALSE)$")
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# Keyword
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set(key "${arg}")
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if(NOT key MATCHES "${_aep_keyword_regex}")
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message(AUTHOR_WARNING "unknown add_external_project keyword: ${key}")
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endif()
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elseif(key STREQUAL "DEPENDS")
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# Value for DEPENDS
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if(NOT arg STREQUAL "")
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add_dependencies(${name} ${arg})
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set_property(TARGET ${name} APPEND PROPERTY AEP_FILE_DEPENDS "${sentinels_dir}/${arg}-done")
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else()
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message(AUTHOR_WARNING "empty DEPENDS value in add_external_project")
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endif()
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elseif(key)
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# Value
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if(NOT arg STREQUAL "")
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set_property(TARGET ${name} APPEND PROPERTY AEP_${key} "${arg}")
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else()
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get_property(have_key TARGET ${name} PROPERTY AEP_${key} SET)
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if(have_key)
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get_property(value TARGET ${name} PROPERTY AEP_${key})
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set_property(TARGET ${name} PROPERTY AEP_${key} "${value};${arg}")
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else()
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set_property(TARGET ${name} PROPERTY AEP_${key} "${arg}")
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endif()
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endif()
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else()
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# Missing Keyword
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message(AUTHOR_WARNING "value with no keyword in add_external_project")
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endif()
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# Depend on other external projects (target-level).
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get_property(deps TARGET ${name} PROPERTY AEP_DEPENDS)
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foreach(arg IN LISTS deps)
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add_dependencies(${name} ${arg})
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endforeach()
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# Set up custom build steps based on the target properties.
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