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Diffstat (limited to 'Modules/FindDoxygen.cmake')
| -rw-r--r-- | Modules/FindDoxygen.cmake | 1116 |
1 files changed, 1011 insertions, 105 deletions
diff --git a/Modules/FindDoxygen.cmake b/Modules/FindDoxygen.cmake index d2ede6ab9..46bf340dd 100644 --- a/Modules/FindDoxygen.cmake +++ b/Modules/FindDoxygen.cmake @@ -1,144 +1,1050 @@ -# - This module looks for Doxygen and the path to Graphviz's dot -# Doxygen is a documentation generation tool. Please see -# http://www.doxygen.org -# -# This module accepts the following optional variables: -# -# DOXYGEN_SKIP_DOT = If true this module will skip trying to find Dot -# (an optional component often used by Doxygen) -# -# This modules defines the following variables: -# -# DOXYGEN_EXECUTABLE = The path to the doxygen command. -# DOXYGEN_FOUND = Was Doxygen found or not? -# DOXYGEN_VERSION = The version reported by doxygen --version -# -# DOXYGEN_DOT_EXECUTABLE = The path to the dot program used by doxygen. -# DOXYGEN_DOT_FOUND = Was Dot found or not? -# DOXYGEN_DOT_PATH = The path to dot not including the executable -# -# +# 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 <http://graphviz.org>`_ ``dot`` utility used to render various + graphs. +``mscgen`` + `Message Chart Generator <http://www.mcternan.me.uk/mscgen/>`_ utility used + by Doxygen's ``\msc`` and ``\mscfile`` commands. +``dia`` + `Dia <https://wiki.gnome.org/Apps/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 + <http://www.doxygen.org/manual/config.html>`_ 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_<tag>`` will have its value substituted for the + corresponding ``<tag>`` configuration option in the ``Doxyfile``. See the + `Doxygen documentation <http://www.doxygen.org/manual/config.html>`_ 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. -#============================================================================= -# Copyright 2001-2009 Kitware, Inc. -# -# Distributed under the OSI-approved BSD License (the "License"); -# see accompanying file Copyright.txt for details. -# -# This software is distributed WITHOUT ANY WARRANTY; without even the -# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. -# See the License for more information. -#============================================================================= -# (To distribute this file outside of CMake, substitute the full -# License text for the above reference.) + +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) + 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 that is 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: +# 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 + # Save the old setting set(TEMP_DOXYGEN_SAVE_CMAKE_FIND_APPBUNDLE ${CMAKE_FIND_APPBUNDLE}) # Disable the App-bundle detection feature set(CMAKE_FIND_APPBUNDLE "NEVER") endif() -# FYI: -# In the older versions of OS X Doxygen, dot was included with the -# Doxygen bundle. But the new versions require you to download -# Graphviz.app which contains "dot" in it's bundle. +# FYI: +# In older versions of OS X Doxygen, dot was included with the Doxygen bundle, +# but newer versions require you to download Graphviz.app which contains "dot" +# or use something like homebrew. # ============== End OSX stuff ================ # # Find Doxygen... # +macro(_Doxygen_find_doxygen) + find_program( + DOXYGEN_EXECUTABLE + NAMES doxygen + PATHS + "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\doxygen_is1;Inno Setup: App Path]/bin" + /Applications/Doxygen.app/Contents/Resources + /Applications/Doxygen.app/Contents/MacOS + DOC "Doxygen documentation generation tool (http://www.doxygen.org)" + ) + mark_as_advanced(DOXYGEN_EXECUTABLE) -find_program(DOXYGEN_EXECUTABLE - NAMES doxygen - PATHS - "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\doxygen_is1;Inno Setup: App Path]/bin" - /Applications/Doxygen.app/Contents/Resources - /Applications/Doxygen.app/Contents/MacOS - DOC "Doxygen documentation generation tool (http://www.doxygen.org)" -) + if(DOXYGEN_EXECUTABLE) + execute_process( + COMMAND "${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() -if(DOXYGEN_EXECUTABLE) - execute_process(COMMAND ${DOXYGEN_EXECUTABLE} "--version" OUTPUT_VARIABLE DOXYGEN_VERSION OUTPUT_STRIP_TRAILING_WHITESPACE) -endif() + # Create an imported target for Doxygen + if(NOT TARGET Doxygen::doxygen) + add_executable(Doxygen::doxygen IMPORTED GLOBAL) + set_target_properties(Doxygen::doxygen PROPERTIES + IMPORTED_LOCATION "${DOXYGEN_EXECUTABLE}" + ) + endif() + endif() +endmacro() -include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake) -FIND_PACKAGE_HANDLE_STANDARD_ARGS(Doxygen REQUIRED_VARS DOXYGEN_EXECUTABLE VERSION_VAR DOXYGEN_VERSION) +# +# Find Diagram Editor... +# +macro(_Doxygen_find_dia) + set(_x86 "(x86)") + find_program( + DOXYGEN_DIA_EXECUTABLE + NAMES dia + PATHS + "$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 "${DOXYGEN_DOT_EXECUTABLE}" + ) + endif() + endif() + + unset(_Doxygen_GRAPHVIZ_BIN_DIRS) + unset(_x86) +endmacro() # -# Find Dot... +# Find Message Sequence Chart... # +macro(_Doxygen_find_mscgen) + set(_x86 "(x86)") + find_program( + DOXYGEN_MSCGEN_EXECUTABLE + NAMES mscgen + PATHS + "$ENV{ProgramFiles}/Mscgen" + "$ENV{ProgramFiles${_x86}}/Mscgen" + DOC "Message sequence chart tool for use with Doxygen" + ) + mark_as_advanced(DOXYGEN_MSCGEN_EXECUTABLE) -if(NOT DOXYGEN_SKIP_DOT) - find_program(DOXYGEN_DOT_EXECUTABLE - NAMES dot - PATHS - "$ENV{ProgramFiles}/Graphviz 2.21/bin" - "C:/Program Files/Graphviz 2.21/bin" - "$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 "Graphviz Dot tool for using Doxygen" - ) + 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() - if(DOXYGEN_DOT_EXECUTABLE) - set(DOXYGEN_DOT_FOUND TRUE) - # The Doxyfile wants the path to Dot, not the entire path and executable - get_filename_component(DOXYGEN_DOT_PATH "${DOXYGEN_DOT_EXECUTABLE}" PATH CACHE) - endif() + # Create an imported target for component + if(NOT TARGET Doxygen::mscgen) + add_executable(Doxygen::mscgen IMPORTED GLOBAL) + set_target_properties(Doxygen::mscgen PROPERTIES + IMPORTED_LOCATION "${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() # -# Backwards compatibility... +# 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 setting - set(CMAKE_FIND_APPBUNDLE ${TEMP_DOXYGEN_SAVE_CMAKE_FIND_APPBUNDLE}) + # 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 -# (allows people to stuff them directly into Doxyfile with configure_file()) +# 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") + set(DOXYGEN_FOUND "YES") else() - set(DOXYGEN_FOUND "NO") + set(DOXYGEN_FOUND "NO") endif() -if(DOXYGEN_DOT_FOUND) - set(DOXYGEN_DOT_FOUND "YES") -else() - set(DOXYGEN_DOT_FOUND "NO") +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) -# For backwards compatibility support -set (DOXYGEN ${DOXYGEN_EXECUTABLE} ) -set (DOT ${DOXYGEN_DOT_EXECUTABLE} ) - -mark_as_advanced( - DOXYGEN_EXECUTABLE - DOXYGEN_DOT_EXECUTABLE - DOXYGEN_DOT_PATH - ) +# +# Allow full control of Doxygen from CMakeLists.txt +# + +# Prepare a template Doxyfile and Doxygen's default values CMake file +if(TARGET Doxygen::doxygen) + # If doxygen was found, use it to generate a minimal default Doxyfile. + # We will delete this file after we have finished using it below to + # generate the other files that doxygen_add_docs() will use. + set(_Doxygen_tpl "${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. + set(DOXYGEN_HAVE_DOT ${DOXYGEN_DOT_FOUND}) + 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() |