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d77ecacc27
It's silly to require all the time-consuming cmake configuration for the source code, if all you want to do is to build the documentation. My own website update script will like this optimisation, and so will Buildscr. In order to make doc/CMakeLists.txt work standalone, I had to add a 'project' header (citing no languages, so that cmake won't even bother looking for a C compiler); include FindGit, which cmake/setup.cmake now won't be doing for it; change all references to CMAKE_SOURCE_DIR to CMAKE_CURRENT_SOURCE_DIR/.. (since now the former will be defined differently in a nested or standalone doc build); and spot whether we're nested or not in order to conditionalise things designed to interoperate with the parent CMakeLists.
157 lines
5.9 KiB
CMake
157 lines
5.9 KiB
CMake
cmake_minimum_required(VERSION 3.12)
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project(putty-documentation LANGUAGES)
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# This build script can be run standalone, or included as a
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# subdirectory of the main PuTTY cmake build system. If the latter, a
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# couple of things change: it has to set variables telling the rest of
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# the build system what manpages are available to be installed, and it
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# will change whether the 'make doc' target is included in 'make all'.
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include(FindGit)
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include(FindPerl)
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find_program(HALIBUT halibut)
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set(doc_outputs)
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set(manpage_outputs)
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if(HALIBUT AND PERL_EXECUTABLE)
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# Build the main manual, which requires not only Halibut, but also
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# Perl to run licence.pl to generate the copyright and licence
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# sections from the master data outside this directory.
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# If this is a source archive in which a fixed version.but was
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# provided, use that. Otherwise, infer one from the git checkout (if
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# possible).
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if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/version.but)
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set(VERSION_BUT ${CMAKE_CURRENT_SOURCE_DIR}/version.but)
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else()
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set(VERSION_BUT ${CMAKE_CURRENT_BINARY_DIR}/cmake_version.but)
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set(INTERMEDIATE_VERSION_BUT ${VERSION_BUT}.tmp)
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add_custom_target(check_git_commit_for_doc
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BYPRODUCTS ${INTERMEDIATE_VERSION_BUT}
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COMMAND ${CMAKE_COMMAND}
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-DGIT_EXECUTABLE=${GIT_EXECUTABLE}
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-DOUTPUT_FILE=${INTERMEDIATE_VERSION_BUT}
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-DOUTPUT_TYPE=halibut
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-P ${CMAKE_CURRENT_SOURCE_DIR}/../cmake/gitcommit.cmake
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DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/../cmake/gitcommit.cmake
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WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/..
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COMMENT "Checking current git commit")
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add_custom_target(cmake_version_but
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BYPRODUCTS ${VERSION_BUT}
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COMMAND ${CMAKE_COMMAND} -E copy_if_different
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${INTERMEDIATE_VERSION_BUT} ${VERSION_BUT}
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DEPENDS check_git_commit_for_doc ${INTERMEDIATE_VERSION_BUT}
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COMMENT "Updating cmake_version.but")
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endif()
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add_custom_command(OUTPUT copy.but
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COMMAND ${PERL_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/../licence.pl
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--copyrightdoc -o copy.but
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DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/../licence.pl ${CMAKE_CURRENT_SOURCE_DIR}/../LICENCE)
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add_custom_command(OUTPUT licence.but
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COMMAND ${PERL_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/../licence.pl
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--licencedoc -o licence.but
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DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/../licence.pl ${CMAKE_CURRENT_SOURCE_DIR}/../LICENCE)
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set(manual_sources
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${CMAKE_CURRENT_BINARY_DIR}/copy.but
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${CMAKE_CURRENT_SOURCE_DIR}/blurb.but
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${CMAKE_CURRENT_SOURCE_DIR}/intro.but
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${CMAKE_CURRENT_SOURCE_DIR}/gs.but
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${CMAKE_CURRENT_SOURCE_DIR}/using.but
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${CMAKE_CURRENT_SOURCE_DIR}/config.but
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${CMAKE_CURRENT_SOURCE_DIR}/pscp.but
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${CMAKE_CURRENT_SOURCE_DIR}/psftp.but
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${CMAKE_CURRENT_SOURCE_DIR}/plink.but
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${CMAKE_CURRENT_SOURCE_DIR}/pubkey.but
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${CMAKE_CURRENT_SOURCE_DIR}/pageant.but
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${CMAKE_CURRENT_SOURCE_DIR}/errors.but
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${CMAKE_CURRENT_SOURCE_DIR}/faq.but
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${CMAKE_CURRENT_SOURCE_DIR}/feedback.but
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${CMAKE_CURRENT_SOURCE_DIR}/pubkeyfmt.but
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${CMAKE_CURRENT_BINARY_DIR}/licence.but
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${CMAKE_CURRENT_SOURCE_DIR}/udp.but
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${CMAKE_CURRENT_SOURCE_DIR}/pgpkeys.but
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${CMAKE_CURRENT_SOURCE_DIR}/sshnames.but
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${CMAKE_CURRENT_SOURCE_DIR}/index.but
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${VERSION_BUT})
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# The HTML manual goes in a subdirectory, for convenience.
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set(html_dir ${CMAKE_CURRENT_BINARY_DIR}/html)
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file(MAKE_DIRECTORY ${html_dir})
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add_custom_command(OUTPUT ${html_dir}/index.html
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COMMAND ${HALIBUT} --html ${manual_sources}
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WORKING_DIRECTORY ${html_dir}
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DEPENDS ${manual_sources})
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list(APPEND doc_outputs ${html_dir}/index.html)
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# Windows help.
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file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/chmextra.but
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"\\cfg{chm-extra-file}{${CMAKE_CURRENT_SOURCE_DIR}/chm.css}{chm.css}\n")
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add_custom_command(OUTPUT putty.chm
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COMMAND ${HALIBUT} --chm chmextra.but ${manual_sources}
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WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
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DEPENDS ${manual_sources})
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list(APPEND doc_outputs putty.chm)
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# Plain text.
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add_custom_command(OUTPUT puttydoc.txt
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COMMAND ${HALIBUT} --text ${manual_sources}
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WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
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DEPENDS ${manual_sources})
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list(APPEND doc_outputs puttydoc.txt)
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endif()
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macro(register_manpage title section)
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list(APPEND manpage_outputs ${title}.${section})
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if(NOT CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
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# Only set this variable if there _is_ a parent scope.
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set(HAVE_MANPAGE_${title}_${section} ON PARENT_SCOPE)
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endif()
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endmacro()
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macro(manpage title section)
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if(HALIBUT)
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add_custom_command(OUTPUT ${title}.${section}
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COMMAND ${HALIBUT} --man=${title}.${section}
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${CMAKE_CURRENT_SOURCE_DIR}/mancfg.but
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${CMAKE_CURRENT_SOURCE_DIR}/man-${title}.but
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DEPENDS
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mancfg.but man-${title}.but)
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register_manpage(${title} ${section})
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elseif(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${title}.${section})
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add_custom_command(OUTPUT ${title}.${section}
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COMMAND ${CMAKE_COMMAND} -E copy_if_different
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${CMAKE_CURRENT_SOURCE_DIR}/${title}.${section} ${title}.${section}
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DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/${title}.${section})
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register_manpage(${title} ${section})
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endif()
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endmacro()
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manpage(putty 1)
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manpage(puttygen 1)
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manpage(plink 1)
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manpage(pscp 1)
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manpage(psftp 1)
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manpage(puttytel 1)
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manpage(pterm 1)
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manpage(pageant 1)
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manpage(psocks 1)
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manpage(psusan 1)
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add_custom_target(manpages ALL DEPENDS ${manpage_outputs})
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add_custom_target(doc DEPENDS ${doc_outputs} manpages)
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if(CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
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# If we're doing a cmake from just the doc subdir, we expect the
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# user to want to make all the documentation, including HTML and so
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# forth. (What else would be the point?)
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#
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# But if we're included from the main makefile, then by default we
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# only make the man pages (which are necessary for 'make install'),
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# and we leave everything else to a separate 'make doc' target which
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# the user can invoke if they need to.
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add_custom_target(doc-default ALL DEPENDS doc)
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endif()
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