cmake/DownloadProject.cmake

# Licensed to the Apache Software Foundation (ASF) under one # or more contributor license agreements. See the NOTICE file # distributed with this work for additional information # regarding copyright ownership. The ASF licenses this file # to you under the Apache License, Version 2.0 (the # "License"); you may not use this file except in compliance # with the License. You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, # software distributed under the License is distributed on an # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY # KIND, either express or implied. See the License for the # specific language governing permissions and limitations # under the License. # Distributed under the OSI-approved MIT License. See accompanying # file LICENSE or https://github.com/Crascit/DownloadProject for details. # # MODULE: DownloadProject # # PROVIDES: # download_project( PROJ projectName # [PREFIX prefixDir] # [DOWNLOAD_DIR downloadDir] # [SOURCE_DIR srcDir] # [BINARY_DIR binDir] # [QUIET] # ... # ) # # Provides the ability to download and unpack a tarball, zip file, git repository, # etc. at configure time (i.e. when the cmake command is run). How the downloaded # and unpacked contents are used is up to the caller, but the motivating case is # to download source code which can then be included directly in the build with # add_subdirectory() after the call to download_project(). Source and build # directories are set up with this in mind. # # The PROJ argument is required. The projectName value will be used to construct # the following variables upon exit (obviously replace projectName with its actual # value): # # projectName_SOURCE_DIR # projectName_BINARY_DIR # # The SOURCE_DIR and BINARY_DIR arguments are optional and would not typically # need to be provided. They can be specified if you want the downloaded source # and build directories to be located in a specific place. The contents of # projectName_SOURCE_DIR and projectName_BINARY_DIR will be populated with the # locations used whether you provide SOURCE_DIR/BINARY_DIR or not. # # The DOWNLOAD_DIR argument does not normally need to be set. It controls the # location of the temporary CMake build used to perform the download. # # The PREFIX argument can be provided to change the base location of the default # values of DOWNLOAD_DIR, SOURCE_DIR and BINARY_DIR. If all of those three arguments # are provided, then PREFIX will have no effect. The default value for PREFIX is # CMAKE_BINARY_DIR. # # The QUIET option can be given if you do not want to show the output associated # with downloading the specified project. # # In addition to the above, any other options are passed through unmodified to # ExternalProject_Add() to perform the actual download, patch and update steps. # The following ExternalProject_Add() options are explicitly prohibited (they # are reserved for use by the download_project() command): # # CONFIGURE_COMMAND # BUILD_COMMAND # INSTALL_COMMAND # TEST_COMMAND # # Only those ExternalProject_Add() arguments which relate to downloading, patching # and updating of the project sources are intended to be used. Also note that at # least one set of download-related arguments are required. # # If using CMake 3.2 or later, the UPDATE_DISCONNECTED option can be used to # prevent a check at the remote end for changes every time CMake is run # after the first successful download. See the documentation of the ExternalProject # module for more information. It is likely you will want to use this option if it # is available to you. Note, however, that the ExternalProject implementation contains # bugs which result in incorrect handling of the UPDATE_DISCONNECTED option when # using the URL download method or when specifying a SOURCE_DIR with no download # method. Fixes for these have been created, the last of which is scheduled for # inclusion in CMake 3.8.0. Details can be found here: # # https://gitlab.kitware.com/cmake/cmake/commit/bdca68388bd57f8302d3c1d83d691034b7ffa70c # https://gitlab.kitware.com/cmake/cmake/issues/16428 # # If you experience build errors related to the update step, consider avoiding # the use of UPDATE_DISCONNECTED. # # EXAMPLE USAGE: # # include(DownloadProject) # download_project(PROJ googletest # GIT_REPOSITORY https://github.com/google/googletest.git # GIT_TAG master # UPDATE_DISCONNECTED 1 # QUIET # ) # # add_subdirectory(${googletest_SOURCE_DIR} ${googletest_BINARY_DIR}) # #======================================================================================== set(_DownloadProjectDir "${CMAKE_CURRENT_LIST_DIR}") include(CMakeParseArguments) function(download_project) set(options QUIET IS_AUTOGEN IS_MAVEN) set(oneValueArgs PROJ MAVEN_DIR PREFIX DOWNLOAD_DIR SOURCE_DIR BINARY_DIR # Prevent the following from being passed through CONFIGURE_COMMAND BUILD_COMMAND INSTALL_COMMAND TEST_COMMAND ) set(multiValueArgs "") cmake_parse_arguments(DL_ARGS "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN}) # Hide output if requested if (DL_ARGS_QUIET) set(OUTPUT_QUIET "OUTPUT_QUIET") else() unset(OUTPUT_QUIET) message(STATUS "Downloading/updating ${DL_ARGS_PROJ}") endif() # Set up where we will put our temporary CMakeLists.txt file and also # the base point below which the default source and binary dirs will be. # The prefix must always be an absolute path. if (NOT DL_ARGS_PREFIX) set(DL_ARGS_PREFIX "${CMAKE_BINARY_DIR}") else() get_filename_component(DL_ARGS_PREFIX "${DL_ARGS_PREFIX}" ABSOLUTE BASE_DIR "${CMAKE_CURRENT_BINARY_DIR}") endif() if (NOT DL_ARGS_DOWNLOAD_DIR) set(DL_ARGS_DOWNLOAD_DIR "${DL_ARGS_PREFIX}/${DL_ARGS_PROJ}-download") endif() # Ensure the caller can know where to find the source and build directories if (NOT DL_ARGS_SOURCE_DIR) set(DL_ARGS_SOURCE_DIR "${DL_ARGS_PREFIX}/${DL_ARGS_PROJ}-src") endif() if (NOT DL_ARGS_BINARY_DIR) set(DL_ARGS_BINARY_DIR "${DL_ARGS_PREFIX}/${DL_ARGS_PROJ}-build") endif() set(${DL_ARGS_PROJ}_SOURCE_DIR "${DL_ARGS_SOURCE_DIR}" PARENT_SCOPE) set(${DL_ARGS_PROJ}_BINARY_DIR "${DL_ARGS_BINARY_DIR}" PARENT_SCOPE) # Create and build a separate CMake project to carry out the download. # If we've already previously done these steps, they will not cause # anything to be updated, so extra rebuilds of the project won't occur. # Make sure to pass through CMAKE_MAKE_PROGRAM in case the main project # has this set to something not findable on the PATH. if (DL_ARGS_IS_AUTOGEN) configure_file("${_DownloadProjectDir}/DownloadProject.CMakeLists.autogen.in" "${DL_ARGS_DOWNLOAD_DIR}/CMakeLists.txt") else() configure_file("${_DownloadProjectDir}/DownloadProject.CMakeLists.cmake.in" "${DL_ARGS_DOWNLOAD_DIR}/CMakeLists.txt") endif() execute_process(COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" -D "CMAKE_MAKE_PROGRAM:FILE=${CMAKE_MAKE_PROGRAM}" . RESULT_VARIABLE result ${OUTPUT_QUIET} WORKING_DIRECTORY "${DL_ARGS_DOWNLOAD_DIR}" ) if(result) file(REMOVE "${DL_ARGS_DOWNLOAD_DIR}/CMakeCache.txt") message(FATAL_ERROR "CMake step for ${DL_ARGS_PROJ} failed: ${result}") endif() execute_process(COMMAND ${CMAKE_COMMAND} --build . RESULT_VARIABLE result ${OUTPUT_QUIET} WORKING_DIRECTORY "${DL_ARGS_DOWNLOAD_DIR}" ) if(result) file(REMOVE "${DL_ARGS_DOWNLOAD_DIR}/CMakeCache.txt") message(FATAL_ERROR "Build step for ${DL_ARGS_PROJ} failed: ${result}") endif() if (DL_ARGS_IS_MAVEN) message(STATUS "Building ${DL_ARGS_PROJ} in ${DL_ARGS_SOURCE_DIR}/${DL_ARGS_MAVEN_DIR}") execute_process(COMMAND "${MAVEN_EXECUTABLE}" "-q" "package" "-DskipTests" "-Denforcer.skip=true" WORKING_DIRECTORY "${DL_ARGS_SOURCE_DIR}/${DL_ARGS_MAVEN_DIR}" RESULT_VARIABLE result OUTPUT_VARIABLE output ERROR_VARIABLE error_variable) if(NOT "${result}" STREQUAL "0") message(FATAL_ERROR "Failed to build ${DL_ARGS_PROJ}. Command output: ${output}") endif() endif(DL_ARGS_IS_MAVEN) endfunction()

cmake/DownloadProject.cmake (196 lines of code) (raw):