blob: 45fd1d6096f5c8f49f642f04a800f01ff8fa3912 [file] [log] [blame]
find_package(Doxygen QUIET)
if (PICO_SDK_TOP_LEVEL_PROJECT AND ${DOXYGEN_FOUND})
set(PICO_BUILD_DOCS_DEFAULT 1)
endif()
option(PICO_BUILD_DOCS "Build HTML Doxygen docs" ${PICO_BUILD_DOCS_DEFAULT})
if (DEFINED ENV{PICO_EXAMPLES_PATH} AND NOT PICO_EXAMPLES_PATH)
set(PICO_EXAMPLES_PATH $ENV{PICO_EXAMPLES_PATH})
message("Using PICO_EXAMPLES_PATH from environment ('${PICO_EXAMPLES_PATH}')")
endif()
if(PICO_BUILD_DOCS)
if(NOT DOXYGEN_FOUND)
message(FATAL_ERROR "Doxygen is needed to build the documentation.")
endif()
include(ExternalProject)
if(PICO_EXAMPLES_PATH)
get_filename_component(PICO_EXAMPLES_PATH "${PICO_EXAMPLES_PATH}" REALPATH BASE_DIR "${CMAKE_BINARY_DIR}")
if (EXISTS ${PICO_EXAMPLES_PATH})
message("Documentation example code will come from ${PICO_EXAMPLES_PATH}")
else()
message(WARNING "Documentation example code configured to come from ${PICO_EXAMPLES_PATH}, but that path does not exist")
endif()
add_custom_target(doc-pico-examples)
else()
ExternalProject_Add(doc-pico-examples
GIT_REPOSITORY https://github.com/raspberrypi/pico-examples
GIT_TAG master
CONFIGURE_COMMAND ""
BUILD_COMMAND ""
INSTALL_COMMAND ""
)
ExternalProject_Get_property(doc-pico-examples SOURCE_DIR)
ExternalProject_Get_property(doc-pico-examples GIT_REPOSITORY)
ExternalProject_Get_property(doc-pico-examples GIT_TAG)
set(PICO_EXAMPLES_PATH ${SOURCE_DIR})
message("Documentation example code will come from git repo ${GIT_REPOSITORY}, branch ${GIT_TAG}")
endif()
set(DOXY_OUTPUT_DIR "${CMAKE_CURRENT_BINARY_DIR}/doxygen")
set(DOXY_INPUT_DIRS "${PICO_DOXYGEN_PATHS}")
set(DOXY_EXCLUDE_DIRS "${PICO_DOXYGEN_EXCLUDE_PATHS}")
set(DOXY_EXAMPLE_DIR "${PICO_EXAMPLES_PATH}")
set(doxyfile_in ${CMAKE_CURRENT_SOURCE_DIR}/Doxyfile.in)
set(doxyfile ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile)
configure_file(${doxyfile_in} ${doxyfile} @ONLY)
add_custom_target(docs
COMMAND ${DOXYGEN_EXECUTABLE} ${doxyfile}
WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
COMMENT "Generating API documentation with Doxygen"
VERBATIM)
add_dependencies(docs doc-pico-examples)
endif()