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include(GNUInstallDirs)
# Create sphinx target
if (LLVM_ENABLE_SPHINX)
message(STATUS "Sphinx enabled.")
find_package(Sphinx REQUIRED)
if (LLVM_BUILD_DOCS AND NOT TARGET sphinx)
add_custom_target(sphinx ALL)
endif()
else()
message(STATUS "Sphinx disabled.")
endif()
# Handy function for creating the different Sphinx targets.
#
# ``builder`` should be one of the supported builders used by
# the sphinx-build command.
#
# ``project`` should be the project name
#
# Named arguments:
# ``ENV_VARS`` should be a list of environment variables that should be set when
# running Sphinx. Each environment variable should be a string with
# the form KEY=VALUE.
function (add_sphinx_target builder project)
cmake_parse_arguments(ARG "" "SOURCE_DIR" "ENV_VARS" ${ARGN})
set(SPHINX_BUILD_DIR "${CMAKE_CURRENT_BINARY_DIR}/${builder}")
set(SPHINX_DOC_TREE_DIR "${CMAKE_CURRENT_BINARY_DIR}/_doctrees-${project}-${builder}")
set(SPHINX_TARGET_NAME docs-${project}-${builder})
if (SPHINX_WARNINGS_AS_ERRORS)
set(SPHINX_WARNINGS_AS_ERRORS_FLAG "-W")
else()
set(SPHINX_WARNINGS_AS_ERRORS_FLAG "")
endif()
if (NOT ARG_SOURCE_DIR)
set(ARG_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}")
endif()
if ("${LLVM_VERSION_SUFFIX}" STREQUAL "git")
set(PreReleaseTag "-tPreRelease")
endif()
add_custom_target(${SPHINX_TARGET_NAME}
COMMAND ${CMAKE_COMMAND} -E env ${ARG_ENV_VARS}
${SPHINX_EXECUTABLE}
-b ${builder}
-d "${SPHINX_DOC_TREE_DIR}"
-q # Quiet: no output other than errors and warnings.
-t builder-${builder} # tag for builder
-D version=${LLVM_VERSION_MAJOR}
-D release=${PACKAGE_VERSION}
${PreReleaseTag}
${SPHINX_WARNINGS_AS_ERRORS_FLAG} # Treat warnings as errors if requested
"${ARG_SOURCE_DIR}" # Source
"${SPHINX_BUILD_DIR}" # Output
COMMENT
"Generating ${builder} Sphinx documentation for ${project} into \"${SPHINX_BUILD_DIR}\"")
# When "clean" target is run, remove the Sphinx build directory
set_property(DIRECTORY APPEND PROPERTY
ADDITIONAL_MAKE_CLEAN_FILES
"${SPHINX_BUILD_DIR}")
# We need to remove ${SPHINX_DOC_TREE_DIR} when make clean is run
# but we should only add this path once
get_property(_CURRENT_MAKE_CLEAN_FILES
DIRECTORY PROPERTY ADDITIONAL_MAKE_CLEAN_FILES)
list(FIND _CURRENT_MAKE_CLEAN_FILES "${SPHINX_DOC_TREE_DIR}" _INDEX)
if (_INDEX EQUAL -1)
set_property(DIRECTORY APPEND PROPERTY
ADDITIONAL_MAKE_CLEAN_FILES
"${SPHINX_DOC_TREE_DIR}")
endif()
if (LLVM_BUILD_DOCS)
add_dependencies(sphinx ${SPHINX_TARGET_NAME})
# Handle installation
if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
if (builder STREQUAL man)
# FIXME: We might not ship all the tools that these man pages describe
install(DIRECTORY "${SPHINX_BUILD_DIR}/" # Slash indicates contents of
COMPONENT "${project}-sphinx-man"
DESTINATION "${CMAKE_INSTALL_MANDIR}/man1")
if(NOT LLVM_ENABLE_IDE)
add_llvm_install_targets("install-${SPHINX_TARGET_NAME}"
DEPENDS ${SPHINX_TARGET_NAME}
COMPONENT "${project}-sphinx-man")
endif()
elseif (builder STREQUAL html)
string(TOUPPER "${project}" project_upper)
set(${project_upper}_INSTALL_SPHINX_HTML_DIR "${CMAKE_INSTALL_DOCDIR}/${project}/html"
CACHE STRING "HTML documentation install directory for ${project}")
# '/.' indicates: copy the contents of the directory directly into
# the specified destination, without recreating the last component
# of ${SPHINX_BUILD_DIR} implicitly.
install(DIRECTORY "${SPHINX_BUILD_DIR}/."
COMPONENT "${project}-sphinx-html"
DESTINATION "${${project_upper}_INSTALL_SPHINX_HTML_DIR}")
if(NOT LLVM_ENABLE_IDE)
add_llvm_install_targets("install-${SPHINX_TARGET_NAME}"
DEPENDS ${SPHINX_TARGET_NAME}
COMPONENT "${project}-sphinx-html")
endif()
else()
message(WARNING Installation of ${builder} not supported)
endif()
endif()
endif()
endfunction()
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