# Distributed under the OSI-approved BSD 3-Clause License. See accompanying # file Copyright.txt or https://cmake.org/licensing for details. #[=======================================================================[.rst: FindDoxygen ----------- Doxygen is a documentation generation tool (see http://www.doxygen.org). This module looks for Doxygen and some optional tools it supports. These tools are enabled as components in the :command:`find_package` command: ``dot`` `Graphviz `_ ``dot`` utility used to render various graphs. ``mscgen`` `Message Chart Generator `_ utility used by Doxygen's ``\msc`` and ``\mscfile`` commands. ``dia`` `Dia `_ the diagram editor used by Doxygen's ``\diafile`` command. Examples: .. code-block:: cmake # Require dot, treat the other components as optional find_package(Doxygen REQUIRED dot OPTIONAL_COMPONENTS mscgen dia) The following variables are defined by this module: .. variable:: DOXYGEN_FOUND True if the ``doxygen`` executable was found. .. variable:: DOXYGEN_VERSION The version reported by ``doxygen --version``. The module defines ``IMPORTED`` targets for Doxygen and each component found. These can be used as part of custom commands, etc. and should be preferred over old-style (and now deprecated) variables like ``DOXYGEN_EXECUTABLE``. The following import targets are defined if their corresponding executable could be found (the component import targets will only be defined if that component was requested): :: Doxygen::doxygen Doxygen::dot Doxygen::mscgen Doxygen::dia Functions ^^^^^^^^^ .. command:: doxygen_add_docs This function is intended as a convenience for adding a target for generating documentation with Doxygen. It aims to provide sensible defaults so that projects can generally just provide the input files and directories and that will be sufficient to give sensible results. The function supports the ability to customize the Doxygen configuration used to build the documentation. :: doxygen_add_docs(targetName [filesOrDirs...] [WORKING_DIRECTORY dir] [COMMENT comment]) The function constructs a ``Doxyfile`` and defines a custom target that runs Doxygen on that generated file. The listed files and directories are used as the ``INPUT`` of the generated ``Doxyfile`` and they can contain wildcards. Any files that are listed explicitly will also be added as ``SOURCES`` of the custom target so they will show up in an IDE project's source list. So that relative input paths work as expected, by default the working directory of the Doxygen command will be the current source directory (i.e. :variable:`CMAKE_CURRENT_SOURCE_DIR`). This can be overridden with the ``WORKING_DIRECTORY`` option to change the directory used as the relative base point. Note also that Doxygen's default behavior is to strip the working directory from relative paths in the generated documentation (see the ``STRIP_FROM_PATH`` `Doxygen config option `_ for details). If provided, the optional ``comment`` will be passed as the ``COMMENT`` for the :command:`add_custom_target` command used to create the custom target internally. The contents of the generated ``Doxyfile`` can be customized by setting CMake variables before calling ``doxygen_add_docs()``. Any variable with a name of the form ``DOXYGEN_`` will have its value substituted for the corresponding ```` configuration option in the ``Doxyfile``. See the `Doxygen documentation `_ for the full list of supported configuration options. Some of Doxygen's defaults are overridden to provide more appropriate behavior for a CMake project. Each of the following will be explicitly set unless the variable already has a value before ``doxygen_add_docs()`` is called (with some exceptions noted): .. variable:: DOXYGEN_HAVE_DOT Set to ``YES`` if the ``dot`` component was requested and it was found, ``NO`` otherwise. Any existing value of ``DOXYGEN_HAVE_DOT`` is ignored. .. variable:: DOXYGEN_DOT_MULTI_TARGETS Set to ``YES`` by this module (note that this requires a ``dot`` version newer than 1.8.10). This option is only meaningful if ``DOXYGEN_HAVE_DOT`` is also set to ``YES``. .. variable:: DOXYGEN_GENERATE_LATEX Set to ``NO`` by this module. .. variable:: DOXYGEN_WARN_FORMAT For Visual Studio based generators, this is set to the form recognized by the Visual Studio IDE: ``$file($line) : $text``. For all other generators, Doxygen's default value is not overridden. .. variable:: DOXYGEN_PROJECT_NAME Populated with the name of the current project (i.e. :variable:`PROJECT_NAME`). .. variable:: DOXYGEN_PROJECT_NUMBER Populated with the version of the current project (i.e. :variable:`PROJECT_VERSION`). .. variable:: DOXYGEN_PROJECT_BRIEF Populated with the description of the current project (i.e. :variable:`PROJECT_DESCRIPTION`). .. variable:: DOXYGEN_INPUT Projects should not set this variable. It will be populated with the set of files and directories passed to ``doxygen_add_docs()``, thereby providing consistent behavior with the other built-in commands like :command:`add_executable`, :command:`add_library` and :command:`add_custom_target`. If a variable named ``DOXYGEN_INPUT`` is set by the project, it will be ignored and a warning will be issued. .. variable:: DOXYGEN_RECURSIVE Set to ``YES`` by this module. .. variable:: DOXYGEN_EXCLUDE_PATTERNS If the set of inputs includes directories, this variable will specify patterns used to exclude files from them. The following patterns are added by ``doxygen_add_docs()`` to ensure CMake-specific files and directories are not included in the input. If the project sets ``DOXYGEN_EXCLUDE_PATTERNS``, those contents are merged with these additional patterns rather than replacing them: :: */.git/* */.svn/* */.hg/* */CMakeFiles/* */_CPack_Packages/* DartConfiguration.tcl CMakeLists.txt CMakeCache.txt .. variable:: DOXYGEN_OUTPUT_DIRECTORY Set to :variable:`CMAKE_CURRENT_BINARY_DIR` by this module. Note that if the project provides its own value for this and it is a relative path, it will be converted to an absolute path relative to the current binary directory. This is necessary because doxygen will normally be run from a directory within the source tree so that relative source paths work as expected. If this directory does not exist, it will be recursively created prior to executing the doxygen commands. To change any of these defaults or override any other Doxygen config option, set relevant variables before calling ``doxygen_add_docs()``. For example: .. code-block:: cmake set(DOXYGEN_GENERATE_HTML NO) set(DOXYGEN_GENERATE_MAN YES) doxygen_add_docs( doxygen ${PROJECT_SOURCE_DIR} COMMENT "Generate man pages" ) A number of Doxygen config options accept lists of values, but Doxygen requires them to be separated by whitespace. CMake variables hold lists as a string with items separated by semi-colons, so a conversion needs to be performed. The ``doxygen_add_docs()`` command specifically checks the following Doxygen config options and will convert their associated CMake variable's contents into the required form if set. :: ABBREVIATE_BRIEF ALIASES CITE_BIB_FILES DIAFILE_DIRS DOTFILE_DIRS DOT_FONTPATH ENABLED_SECTIONS EXAMPLE_PATH EXAMPLE_PATTERNS EXCLUDE EXCLUDE_PATTERNS EXCLUDE_SYMBOLS EXPAND_AS_DEFINED EXTENSION_MAPPING EXTRA_PACKAGES EXTRA_SEARCH_MAPPINGS FILE_PATTERNS FILTER_PATTERNS FILTER_SOURCE_PATTERNS HTML_EXTRA_FILES HTML_EXTRA_STYLESHEET IGNORE_PREFIX IMAGE_PATH INCLUDE_FILE_PATTERNS INCLUDE_PATH INPUT LATEX_EXTRA_FILES LATEX_EXTRA_STYLESHEET MATHJAX_EXTENSIONS MSCFILE_DIRS PLANTUML_INCLUDE_PATH PREDEFINED QHP_CUST_FILTER_ATTRS QHP_SECT_FILTER_ATTRS STRIP_FROM_INC_PATH STRIP_FROM_PATH TAGFILES TCL_SUBST The following single value Doxygen options would be quoted automatically if they contain at least one space: :: CHM_FILE DIA_PATH DOCBOOK_OUTPUT DOCSET_FEEDNAME DOCSET_PUBLISHER_NAME DOT_FONTNAME DOT_PATH EXTERNAL_SEARCH_ID FILE_VERSION_FILTER GENERATE_TAGFILE HHC_LOCATION HTML_FOOTER HTML_HEADER HTML_OUTPUT HTML_STYLESHEET INPUT_FILTER LATEX_FOOTER LATEX_HEADER LATEX_OUTPUT LAYOUT_FILE MAN_OUTPUT MAN_SUBDIR MATHJAX_CODEFILE MSCGEN_PATH OUTPUT_DIRECTORY PERL_PATH PLANTUML_JAR_PATH PROJECT_BRIEF PROJECT_LOGO PROJECT_NAME QCH_FILE QHG_LOCATION QHP_CUST_FILTER_NAME QHP_VIRTUAL_FOLDER RTF_EXTENSIONS_FILE RTF_OUTPUT RTF_STYLESHEET_FILE SEARCHDATA_FILE USE_MDFILE_AS_MAINPAGE WARN_FORMAT WARN_LOGFILE XML_OUTPUT Deprecated Result Variables ^^^^^^^^^^^^^^^^^^^^^^^^^^^ For compatibility with previous versions of CMake, the following variables are also defined but they are deprecated and should no longer be used: .. variable:: DOXYGEN_EXECUTABLE The path to the ``doxygen`` command. If projects need to refer to the ``doxygen`` executable directly, they should use the ``Doxygen::doxygen`` import target instead. .. variable:: DOXYGEN_DOT_FOUND True if the ``dot`` executable was found. .. variable:: DOXYGEN_DOT_EXECUTABLE The path to the ``dot`` command. If projects need to refer to the ``dot`` executable directly, they should use the ``Doxygen::dot`` import target instead. .. variable:: DOXYGEN_DOT_PATH The path to the directory containing the ``dot`` executable as reported in ``DOXYGEN_DOT_EXECUTABLE``. The path may have forward slashes even on Windows and is not suitable for direct substitution into a ``Doxyfile.in`` template. If you need this value, get the :prop_tgt:`IMPORTED_LOCATION` property of the ``Doxygen::dot`` target and use :command:`get_filename_component` to extract the directory part of that path. You may also want to consider using :command:`file(TO_NATIVE_PATH)` to prepare the path for a Doxygen configuration file. Deprecated Hint Variables ^^^^^^^^^^^^^^^^^^^^^^^^^ .. variable:: DOXYGEN_SKIP_DOT This variable has no any effect for component form of ``find_package``. In backward compatibility mode (i.e. without components list) it prevents the finder module from searching for Graphviz's ``dot`` utility. #]=======================================================================] # For backwards compatibility support if(Doxygen_FIND_QUIETLY) set(DOXYGEN_FIND_QUIETLY TRUE) endif() # ===== Rationale for OS X AppBundle mods below ===== # With the OS X GUI version, Doxygen likes to be installed to /Applications # and it contains the doxygen executable in the bundle. In the versions I've # seen, it is located in Resources, but in general, more often binaries are # located in MacOS. # # NOTE: The official Doxygen.app distributed for OS X uses non-standard # conventions. Instead of the command-line "doxygen" tool being placed in # Doxygen.app/Contents/MacOS, "Doxywizard" is placed there instead and # "doxygen" is placed in Contents/Resources. This is most likely done # so that something happens when people double-click on the Doxygen.app # package. Unfortunately, CMake gets confused by this as when it sees the # bundle it uses "Doxywizard" as the executable to use instead of # "doxygen". Therefore to work-around this issue we temporarily disable # the app-bundle feature, just for this CMake module: # if(APPLE) # Save the old setting set(TEMP_DOXYGEN_SAVE_CMAKE_FIND_APPBUNDLE ${CMAKE_FIND_APPBUNDLE}) # Disable the App-bundle detection feature set(CMAKE_FIND_APPBUNDLE "NEVER") endif() # FYI: # In older versions of OS X Doxygen, dot was included with the Doxygen bundle, # but newer versions require you to download Graphviz.app which contains "dot" # or use something like homebrew. # ============== End OSX stuff ================ # # Find Doxygen... # macro(_Doxygen_find_doxygen) find_program( DOXYGEN_EXECUTABLE NAMES doxygen PATHS "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\doxygen_is1;Inno Setup: App Path]/bin" /Applications/Doxygen.app/Contents/Resources /Applications/Doxygen.app/Contents/MacOS DOC "Doxygen documentation generation tool (http://www.doxygen.org)" ) mark_as_advanced(DOXYGEN_EXECUTABLE) if(DOXYGEN_EXECUTABLE) execute_process( COMMAND "${DOXYGEN_EXECUTABLE}" --version OUTPUT_VARIABLE DOXYGEN_VERSION OUTPUT_STRIP_TRAILING_WHITESPACE RESULT_VARIABLE _Doxygen_version_result ) if(_Doxygen_version_result) message(WARNING "Unable to determine doxygen version: ${_Doxygen_version_result}") endif() # Create an imported target for Doxygen if(NOT TARGET Doxygen::doxygen) add_executable(Doxygen::doxygen IMPORTED GLOBAL) set_target_properties(Doxygen::doxygen PROPERTIES IMPORTED_LOCATION "${DOXYGEN_EXECUTABLE}" ) endif() endif() endmacro() # # Find Diagram Editor... # macro(_Doxygen_find_dia) set(_x86 "(x86)") find_program( DOXYGEN_DIA_EXECUTABLE NAMES dia PATHS "$ENV{ProgramFiles}/Dia" "$ENV{ProgramFiles${_x86}}/Dia" DOC "Diagram Editor tool for use with Doxygen" ) mark_as_advanced(DOXYGEN_DIA_EXECUTABLE) if(DOXYGEN_DIA_EXECUTABLE) # The Doxyfile wants the path to the utility, not the entire path # including file name get_filename_component(DOXYGEN_DIA_PATH "${DOXYGEN_DIA_EXECUTABLE}" DIRECTORY) if(WIN32) file(TO_NATIVE_PATH "${DOXYGEN_DIA_PATH}" DOXYGEN_DIA_PATH) endif() # Create an imported target for component if(NOT TARGET Doxygen::dia) add_executable(Doxygen::dia IMPORTED GLOBAL) set_target_properties(Doxygen::dia PROPERTIES IMPORTED_LOCATION "${DOXYGEN_DIA_EXECUTABLE}" ) endif() endif() unset(_x86) endmacro() # # Find Graphviz Dot... # macro(_Doxygen_find_dot) set(_x86 "(x86)") file( GLOB _Doxygen_GRAPHVIZ_BIN_DIRS "$ENV{ProgramFiles}/Graphviz*/bin" "$ENV{ProgramFiles${_x86}}/Graphviz*/bin" ) find_program( DOXYGEN_DOT_EXECUTABLE NAMES dot PATHS ${_Doxygen_GRAPHVIZ_BIN_DIRS} "$ENV{ProgramFiles}/ATT/Graphviz/bin" "C:/Program Files/ATT/Graphviz/bin" [HKEY_LOCAL_MACHINE\\SOFTWARE\\ATT\\Graphviz;InstallPath]/bin /Applications/Graphviz.app/Contents/MacOS /Applications/Doxygen.app/Contents/Resources /Applications/Doxygen.app/Contents/MacOS DOC "Dot tool for use with Doxygen" ) mark_as_advanced(DOXYGEN_DOT_EXECUTABLE) if(DOXYGEN_DOT_EXECUTABLE) # The Doxyfile wants the path to the utility, not the entire path # including file name get_filename_component(DOXYGEN_DOT_PATH "${DOXYGEN_DOT_EXECUTABLE}" DIRECTORY) if(WIN32) file(TO_NATIVE_PATH "${DOXYGEN_DOT_PATH}" DOXYGEN_DOT_PATH) endif() # Create an imported target for component if(NOT TARGET Doxygen::dot) add_executable(Doxygen::dot IMPORTED GLOBAL) set_target_properties(Doxygen::dot PROPERTIES IMPORTED_LOCATION "${DOXYGEN_DOT_EXECUTABLE}" ) endif() endif() unset(_Doxygen_GRAPHVIZ_BIN_DIRS) unset(_x86) endmacro() # # Find Message Sequence Chart... # macro(_Doxygen_find_mscgen) set(_x86 "(x86)") find_program( DOXYGEN_MSCGEN_EXECUTABLE NAMES mscgen PATHS "$ENV{ProgramFiles}/Mscgen" "$ENV{ProgramFiles${_x86}}/Mscgen" DOC "Message sequence chart tool for use with Doxygen" ) mark_as_advanced(DOXYGEN_MSCGEN_EXECUTABLE) if(DOXYGEN_MSCGEN_EXECUTABLE) # The Doxyfile wants the path to the utility, not the entire path # including file name get_filename_component(DOXYGEN_MSCGEN_PATH "${DOXYGEN_MSCGEN_EXECUTABLE}" DIRECTORY) if(WIN32) file(TO_NATIVE_PATH "${DOXYGEN_MSCGEN_PATH}" DOXYGEN_MSCGEN_PATH) endif() # Create an imported target for component if(NOT TARGET Doxygen::mscgen) add_executable(Doxygen::mscgen IMPORTED GLOBAL) set_target_properties(Doxygen::mscgen PROPERTIES IMPORTED_LOCATION "${DOXYGEN_MSCGEN_EXECUTABLE}" ) endif() endif() unset(_x86) endmacro() # Make sure `doxygen` is one of the components to find set(_Doxygen_keep_backward_compat FALSE) if(NOT Doxygen_FIND_COMPONENTS) # Search at least for `doxygen` executable set(Doxygen_FIND_COMPONENTS doxygen) # Preserve backward compatibility: # search for `dot` also if `DOXYGEN_SKIP_DOT` is not explicitly disable this. if(NOT DOXYGEN_SKIP_DOT) list(APPEND Doxygen_FIND_COMPONENTS dot) endif() set(_Doxygen_keep_backward_compat TRUE) elseif(NOT doxygen IN_LIST Doxygen_FIND_COMPONENTS) list(INSERT Doxygen_FIND_COMPONENTS 0 doxygen) endif() # # Find all requested components of Doxygen... # foreach(_comp IN LISTS Doxygen_FIND_COMPONENTS) if(_comp STREQUAL "doxygen") _Doxygen_find_doxygen() elseif(_comp STREQUAL "dia") _Doxygen_find_dia() elseif(_comp STREQUAL "dot") _Doxygen_find_dot() elseif(_comp STREQUAL "mscgen") _Doxygen_find_mscgen() else() message(WARNING "${_comp} is not a valid Doxygen component") set(Doxygen_${_comp}_FOUND FALSE) continue() endif() if(TARGET Doxygen::${_comp}) set(Doxygen_${_comp}_FOUND TRUE) else() set(Doxygen_${_comp}_FOUND FALSE) endif() endforeach() unset(_comp) # Verify find results include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake) find_package_handle_standard_args( Doxygen REQUIRED_VARS DOXYGEN_EXECUTABLE VERSION_VAR DOXYGEN_VERSION HANDLE_COMPONENTS ) # # Backwards compatibility... # if(APPLE) # Restore the old app-bundle setting set(CMAKE_FIND_APPBUNDLE ${TEMP_DOXYGEN_SAVE_CMAKE_FIND_APPBUNDLE}) endif() # Maintain the _FOUND variables as "YES" or "NO" for backwards # compatibility. This allows people to substitute them directly into # Doxyfile with configure_file(). if(DOXYGEN_FOUND) set(DOXYGEN_FOUND "YES") else() set(DOXYGEN_FOUND "NO") endif() if(_Doxygen_keep_backward_compat) if(Doxygen_dot_FOUND) set(DOXYGEN_DOT_FOUND "YES") else() set(DOXYGEN_DOT_FOUND "NO") endif() # For backwards compatibility support for even older CMake versions set(DOXYGEN ${DOXYGEN_EXECUTABLE}) set(DOT ${DOXYGEN_DOT_EXECUTABLE}) # No need to keep any backward compatibility for `DOXYGEN_MSCGEN_XXX` # and `DOXYGEN_DIA_XXX` since they were not supported before component # support was added endif() unset(_Doxygen_keep_backward_compat) # # Allow full control of Doxygen from CMakeLists.txt # # Prepare a template Doxyfile and Doxygen's default values CMake file if(TARGET Doxygen::doxygen) # If doxygen was found, use it to generate a minimal default Doxyfile. # We will delete this file after we have finished using it below to # generate the other files that doxygen_add_docs() will use. set(_Doxygen_tpl "${CMAKE_BINARY_DIR}/CMakeDoxyfile.tpl") execute_process( COMMAND "${DOXYGEN_EXECUTABLE}" -s -g "${_Doxygen_tpl}" OUTPUT_QUIET RESULT_VARIABLE _Doxygen_tpl_result ) if(_Doxygen_tpl_result) message(FATAL_ERROR "Unable to generate Doxyfile template: ${_Doxygen_tpl_result}") elseif(NOT EXISTS "${_Doxygen_tpl}") message(FATAL_ERROR "Doxygen has failed to generate a Doxyfile template") endif() # Write a do-not-edit header to files we are going to generate... set(_Doxygen_dne_header [[ # # DO NOT EDIT! THIS FILE WAS GENERATED BY CMAKE! # ]] ) # We only need one copy of these across the whole build, since their # content is only dependent on the version of Doxygen being used. Therefore # we always put them at the top of the build tree so that they are in a # predictable location. set(_doxyfile_in "${CMAKE_BINARY_DIR}/CMakeDoxyfile.in") set(_doxyfile_defaults "${CMAKE_BINARY_DIR}/CMakeDoxygenDefaults.cmake") file(WRITE "${_doxyfile_in}" ${_Doxygen_dne_header}) file(WRITE "${_doxyfile_defaults}" ${_Doxygen_dne_header}) # Get strings containing a configuration key from the template Doxyfile # we obtained from this version of Doxygen. Because some options are split # across multiple lines by ending lines with backslashes, we cannot just # use file(STRINGS...) with a REGEX. Instead, read lines without a REGEX # so that file(STRINGS...) handles the trailing backslash as a line # continuation. It stores multi-lines as lists, so we then have to replace # the ";" list separator with backslashed newlines again so that we get the # original content stored back as the value part. file(STRINGS "${_Doxygen_tpl}" _file_lines) unset(_Doxygen_tpl_params) foreach(_line IN LISTS _file_lines) if(_line MATCHES "([A-Z][A-Z0-9_]+)( *=)(.*)") set(_key "${CMAKE_MATCH_1}") set(_eql "${CMAKE_MATCH_2}") string(REPLACE ";" "\\\n" _value "${CMAKE_MATCH_3}") list(APPEND _Doxygen_tpl_params "${_key}${_eql}${_value}") endif() endforeach() # Build up a Doxyfile that provides @configVar@ substitutions for each # Doxygen config option as well as a separate CMake script which provides # the default value for each of those options if the project doesn't supply # them. Each config option will support substitution of a CMake variable # of the same name except with DOXYGEN_ prepended. foreach(_Doxygen_param IN LISTS _Doxygen_tpl_params) if(_Doxygen_param MATCHES "([A-Z][A-Z0-9_]+)( *)=( (.*))?") # Ok, this is a config key with a value if(CMAKE_MATCH_COUNT EQUAL 4) file(APPEND "${_doxyfile_in}" "${CMAKE_MATCH_1}${CMAKE_MATCH_2}= @DOXYGEN_${CMAKE_MATCH_1}@\n") # Remove the backslashes we had to preserve to handle newlines string(REPLACE "\\\n" "\n" _value "${CMAKE_MATCH_4}") file(APPEND "${_doxyfile_defaults}" "if(NOT DEFINED DOXYGEN_${CMAKE_MATCH_1}) set(DOXYGEN_${CMAKE_MATCH_1} ${_value}) endif() ") # Ok, this is a config key with empty default value elseif(CMAKE_MATCH_COUNT EQUAL 2) file(APPEND "${_doxyfile_in}" "${CMAKE_MATCH_1}${CMAKE_MATCH_2}= @DOXYGEN_${CMAKE_MATCH_1}@\n") else() message(AUTHOR_WARNING "Unexpected line format! Code review required!\nFault line: ${_Doxygen_param}") endif() else() message(AUTHOR_WARNING "Unexpected line format! Code review required!\nFault line: ${_Doxygen_param}") endif() endforeach() # Ok, dumped defaults are not needed anymore... file(REMOVE "${_Doxygen_tpl}") unset(_Doxygen_param) unset(_Doxygen_tpl_params) unset(_Doxygen_dne_header) unset(_Doxygen_tpl) endif() function(doxygen_quote_value VARIABLE) # Quote a value of the given variable if: # - variable parameter was really given # - a variable it points is defined # - a value doesn't quoted already # - and it has spaces if(VARIABLE AND DEFINED ${VARIABLE} AND NOT ${VARIABLE} MATCHES "^\".* .*\"$" AND ${VARIABLE} MATCHES " ") set(${VARIABLE} "\"${${VARIABLE}}\"" PARENT_SCOPE) endif() endfunction() function(doxygen_list_to_quoted_strings LIST_VARIABLE) if(LIST_VARIABLE AND DEFINED ${LIST_VARIABLE}) unset(_inputs) unset(_sep) foreach(_in IN LISTS ${LIST_VARIABLE}) doxygen_quote_value(_in) string(APPEND _inputs "${_sep}${_in}") set(_sep " ") endforeach() set(${LIST_VARIABLE} "${_inputs}" PARENT_SCOPE) endif() endfunction() function(doxygen_add_docs targetName) set(_options) set(_one_value_args WORKING_DIRECTORY COMMENT) set(_multi_value_args) cmake_parse_arguments(_args "${_options}" "${_one_value_args}" "${_multi_value_args}" ${ARGN}) if(NOT _args_COMMENT) set(_args_COMMENT "Generate API documentation for ${targetName}") endif() if(NOT _args_WORKING_DIRECTORY) set(_args_WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}") endif() if(DEFINED DOXYGEN_INPUT) message(WARNING "DOXYGEN_INPUT is set but it will be ignored. Pass the files and directories \ directly to the doxygen_add_docs() command instead.") endif() set(DOXYGEN_INPUT ${_args_UNPARSED_ARGUMENTS}) if(NOT TARGET Doxygen::doxygen) message(FATAL_ERROR "Doxygen was not found, needed by \ doxygen_add_docs() for target ${targetName}") endif() # If not already defined, set some relevant defaults based on the # assumption that the documentation is for the whole project. Details # specified in the project() command will be used to populate a number of # these defaults. if(NOT DEFINED DOXYGEN_PROJECT_NAME) # The PROJECT_NAME tag is a single word (or a sequence of words # surrounded by double-quotes, unless you are using Doxywizard) that # should identify the project for which the documentation is generated. # This name is used in the title of most generated pages and in a few # other places. The default value is: My Project. set(DOXYGEN_PROJECT_NAME ${PROJECT_NAME}) endif() if(NOT DEFINED DOXYGEN_PROJECT_NUMBER) # The PROJECT_NUMBER tag can be used to enter a project or revision # number. This could be handy for archiving the generated documentation # or if some version control system is used. set(DOXYGEN_PROJECT_NUMBER ${PROJECT_VERSION}) endif() if(NOT DEFINED DOXYGEN_PROJECT_BRIEF) # Using the PROJECT_BRIEF tag one can provide an optional one line # description for a project that appears at the top of each page and # should give viewer a quick idea about the purpose of the project. # Keep the description short. set(DOXYGEN_PROJECT_BRIEF "${PROJECT_DESCRIPTION}") endif() if(NOT DEFINED DOXYGEN_RECURSIVE) # The RECURSIVE tag can be used to specify whether or not # subdirectories should be searched for input files as well. CMake # projects generally evolve to span multiple directories, so it makes # more sense for this to be on by default. Doxygen's default value # has this setting turned off, so we override it. set(DOXYGEN_RECURSIVE YES) endif() if(NOT DEFINED DOXYGEN_OUTPUT_DIRECTORY) # The OUTPUT_DIRECTORY tag is used to specify the (relative or # absolute) path into which the generated documentation will be # written. If a relative path is used, Doxygen will interpret it as # being relative to the location where doxygen was started, but we need # to run Doxygen in the source tree so that relative input paths work # intuitively. Therefore, we ensure that the output directory is always # an absolute path and if the project provided a relative path, we # treat it as relative to the current BINARY directory so that output # is not generated inside the source tree. set(DOXYGEN_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}") elseif(NOT IS_ABSOLUTE "${DOXYGEN_OUTPUT_DIRECTORY}") get_filename_component(DOXYGEN_OUTPUT_DIRECTORY "${DOXYGEN_OUTPUT_DIRECTORY}" ABSOLUTE BASE_DIR "${CMAKE_CURRENT_BINARY_DIR}") endif() if(NOT DEFINED DOXYGEN_HAVE_DOT) # If you set the HAVE_DOT tag to YES then doxygen will assume the dot # tool is available from the path. This tool is part of Graphviz (see: # http://www.graphviz.org/), a graph visualization toolkit from AT&T # and Lucent Bell Labs. The other options in this section have no # effect if this option is set to NO. # Doxygen's default value is: NO. if(Doxygen_dot_FOUND) set(DOXYGEN_HAVE_DOT "YES") else() set(DOXYGEN_HAVE_DOT "NO") endif() endif() if(NOT DEFINED DOXYGEN_DOT_MULTI_TARGETS) # Set the DOT_MULTI_TARGETS tag to YES to allow dot to generate # multiple output files in one run (i.e. multiple -o and -T options on # the command line). This makes dot run faster, but since only newer # versions of dot (>1.8.10) support this, Doxygen disables this feature # by default. # This tag requires that the tag HAVE_DOT is set to YES. set(DOXYGEN_DOT_MULTI_TARGETS YES) endif() if(NOT DEFINED DOXYGEN_GENERATE_LATEX) # If the GENERATE_LATEX tag is set to YES, doxygen will generate LaTeX # output. We only want the HTML output enabled by default, so we turn # this off if the project hasn't specified it. set(DOXYGEN_GENERATE_LATEX NO) endif() if(NOT DEFINED DOXYGEN_WARN_FORMAT) if(CMAKE_VS_MSBUILD_COMMAND OR CMAKE_VS_DEVENV_COMMAND) # The WARN_FORMAT tag determines the format of the warning messages # that doxygen can produce. The string should contain the $file, # $line and $text tags, which will be replaced by the file and line # number from which the warning originated and the warning text. # Optionally, the format may contain $version, which will be # replaced by the version of the file (if it could be obtained via # FILE_VERSION_FILTER). # Doxygen's default value is: $file:$line: $text set(DOXYGEN_WARN_FORMAT "$file($line) : $text ") endif() endif() if(DEFINED DOXYGEN_WARN_LOGFILE AND NOT IS_ABSOLUTE "${DOXYGEN_WARN_LOGFILE}") # The WARN_LOGFILE tag can be used to specify a file to which warning and error # messages should be written. If left blank the output is written to standard # error (stderr). get_filename_component(DOXYGEN_WARN_LOGFILE "${DOXYGEN_WARN_LOGFILE}" ABSOLUTE BASE_DIR "${CMAKE_CURRENT_BINARY_DIR}") endif() # Any files from the INPUT that match any of the EXCLUDE_PATTERNS will be # excluded from the set of input files. We provide some additional patterns # to prevent commonly unwanted things from CMake builds being pulled in. # # Note that the wildcards are matched against the file with absolute path, # so to exclude all test directories for example use the pattern */test/* list( APPEND DOXYGEN_EXCLUDE_PATTERNS "*/.git/*" "*/.svn/*" "*/.hg/*" "*/CMakeFiles/*" "*/_CPack_Packages/*" "DartConfiguration.tcl" "CMakeLists.txt" "CMakeCache.txt" ) # Now bring in Doxgen's defaults for those things the project has not # already set and we have not provided above include("${CMAKE_BINARY_DIR}/CMakeDoxygenDefaults.cmake" OPTIONAL) # Cleanup built HTMLs on "make clean" # TODO Any other dirs? if(DOXYGEN_GENERATE_HTML) if(IS_ABSOLUTE "${DOXYGEN_HTML_OUTPUT}") set(_args_clean_html_dir "${DOXYGEN_HTML_OUTPUT}") else() set(_args_clean_html_dir "${DOXYGEN_OUTPUT_DIRECTORY}/${DOXYGEN_HTML_OUTPUT}") endif() set_property(DIRECTORY APPEND PROPERTY ADDITIONAL_MAKE_CLEAN_FILES "${_args_clean_html_dir}") endif() # Build up a list of files we can identify from the inputs so we can list # them as SOURCES in the custom target (makes them display in IDEs). We # must do this before we transform the various DOXYGEN_... variables below # because we need to process DOXYGEN_INPUT as a list first. unset(_sources) foreach(_item IN LISTS DOXYGEN_INPUT) get_filename_component(_abs_item "${_item}" ABSOLUTE BASE_DIR "${_args_WORKING_DIRECTORY}") if(EXISTS "${_abs_item}" AND NOT IS_DIRECTORY "${_abs_item}" AND NOT IS_SYMLINK "${_abs_item}") list(APPEND _sources "${_abs_item}") endif() endforeach() if(_sources) list(INSERT _sources 0 SOURCES) endif() # Transform known list type options into space separated strings. set(_doxygen_list_options ABBREVIATE_BRIEF ALIASES CITE_BIB_FILES DIAFILE_DIRS DOTFILE_DIRS DOT_FONTPATH ENABLED_SECTIONS EXAMPLE_PATH EXAMPLE_PATTERNS EXCLUDE EXCLUDE_PATTERNS EXCLUDE_SYMBOLS EXPAND_AS_DEFINED EXTENSION_MAPPING EXTRA_PACKAGES EXTRA_SEARCH_MAPPINGS FILE_PATTERNS FILTER_PATTERNS FILTER_SOURCE_PATTERNS HTML_EXTRA_FILES HTML_EXTRA_STYLESHEET IGNORE_PREFIX IMAGE_PATH INCLUDE_FILE_PATTERNS INCLUDE_PATH INPUT LATEX_EXTRA_FILES LATEX_EXTRA_STYLESHEET MATHJAX_EXTENSIONS MSCFILE_DIRS PLANTUML_INCLUDE_PATH PREDEFINED QHP_CUST_FILTER_ATTRS QHP_SECT_FILTER_ATTRS STRIP_FROM_INC_PATH STRIP_FROM_PATH TAGFILES TCL_SUBST ) foreach(_item IN LISTS _doxygen_list_options) doxygen_list_to_quoted_strings(DOXYGEN_${_item}) endforeach() # Transform known single value variables which may contain spaces, such as # paths or description strings. set(_doxygen_quoted_options CHM_FILE DIA_PATH DOCBOOK_OUTPUT DOCSET_FEEDNAME DOCSET_PUBLISHER_NAME DOT_FONTNAME DOT_PATH EXTERNAL_SEARCH_ID FILE_VERSION_FILTER GENERATE_TAGFILE HHC_LOCATION HTML_FOOTER HTML_HEADER HTML_OUTPUT HTML_STYLESHEET INPUT_FILTER LATEX_FOOTER LATEX_HEADER LATEX_OUTPUT LAYOUT_FILE MAN_OUTPUT MAN_SUBDIR MATHJAX_CODEFILE MSCGEN_PATH OUTPUT_DIRECTORY PERL_PATH PLANTUML_JAR_PATH PROJECT_BRIEF PROJECT_LOGO PROJECT_NAME QCH_FILE QHG_LOCATION QHP_CUST_FILTER_NAME QHP_VIRTUAL_FOLDER RTF_EXTENSIONS_FILE RTF_OUTPUT RTF_STYLESHEET_FILE SEARCHDATA_FILE USE_MDFILE_AS_MAINPAGE WARN_FORMAT WARN_LOGFILE XML_OUTPUT ) # Store the unmodified value of DOXYGEN_OUTPUT_DIRECTORY prior to invoking # doxygen_quote_value() below. This will mutate the string specifically for # consumption by Doxygen's config file, which we do not want when we use it # later in the custom target's commands. set( _original_doxygen_output_dir ${DOXYGEN_OUTPUT_DIRECTORY} ) foreach(_item IN LISTS _doxygen_quoted_options) doxygen_quote_value(DOXYGEN_${_item}) endforeach() # Prepare doxygen configuration file set(_doxyfile_template "${CMAKE_BINARY_DIR}/CMakeDoxyfile.in") set(_target_doxyfile "${CMAKE_CURRENT_BINARY_DIR}/Doxyfile.${targetName}") configure_file("${_doxyfile_template}" "${_target_doxyfile}") # Add the target add_custom_target( ${targetName} VERBATIM COMMAND ${CMAKE_COMMAND} -E make_directory ${_original_doxygen_output_dir} COMMAND "${DOXYGEN_EXECUTABLE}" "${_target_doxyfile}" WORKING_DIRECTORY "${_args_WORKING_DIRECTORY}" DEPENDS "${_target_doxyfile}" COMMENT "${_args_COMMENT}" ${_sources} ) endfunction()