diff --git a/CPM.cmake b/CPM.cmake new file mode 100644 index 0000000..92ace1b --- /dev/null +++ b/CPM.cmake @@ -0,0 +1,63 @@ +set(_CPM_Dir "${CMAKE_CURRENT_LIST_DIR}") + +include(CMakeParseArguments) +include(${_CPM_Dir}/DownloadProject.cmake) + +function(CPMHasPackage) + +endfunction() + +function(CPMAddPackage) + set(options QUIET) + + set(oneValueArgs + NAME + GIT_REPOSITORY + VERSION + GIT_TAG + BINARY_DIR + ) + + set(multiValueArgs "") + + cmake_parse_arguments(CPM_ARGS "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN}) + + if (NOT CPM_PACKAGES) + set(CPM_PACKAGES "") + endif() + + if (${CPM_ARGS_NAME} IN_LIST CPM_PACKAGES) + message(STATUS "CPM: package ${CPM_ARGS_NAME} already added") + return() + endif() + + message(STATUS "CPM: adding package ${CPM_ARGS_NAME}") + # update package data + LIST(APPEND CPM_PACKAGES ${CPM_ARGS_NAME}) + # save package data + set(CPM_PACKAGES "${CPM_PACKAGES}" CACHE INTERNAL "CPM Packages") + + if (NOT CPM_ARGS_BINARY_DIR) + set(CPM_ARGS_BINARY_DIR ${CMAKE_BINARY_DIR}/CPM-projects/${CPM_ARGS_NAME}) + endif() + message("test: ${CPM_ARGS_BINARY_DIR}") + + if (NOT CPM_PROJECT_DIR) + set(CPM_PROJECT_DIR "${CPM_ARGS_BINARY_DIR}") + endif() + + if (NOT CPM_ARGS_GIT_TAG) + set(CPM_ARGS_GIT_TAG v${CPM_ARGS_VERSION}) + endif() + + SET(CPM_TARGET_CMAKE_FILE "${CPM_PROJECT_DIR}") + + configure_file( + "${_CPM_Dir}/CPMProject.CMakeLists.cmake.in" + "${CPM_TARGET_CMAKE_FILE}/CMakeLists.txt" + @ONLY + ) + + add_subdirectory(${CPM_TARGET_CMAKE_FILE} ${CPM_ARGS_BINARY_DIR}) + +endfunction() diff --git a/CPMProject.CMakeLists.cmake.in b/CPMProject.CMakeLists.cmake.in new file mode 100644 index 0000000..45f6b80 --- /dev/null +++ b/CPMProject.CMakeLists.cmake.in @@ -0,0 +1,28 @@ +cmake_minimum_required(VERSION 3.5 FATAL_ERROR) + +if(TARGET @CPM_ARGS_NAME@) + return() +endif() + +find_package(@CPM_ARGS_NAME@ @CPM_ARGS_VERSION@ QUIET) + +if(${PACKAGE_FOUND}) + set_target_properties(@CPM_ARGS_NAME@ + PROPERTIES + IMPORTED_GLOBAL True + ) +else() + + download_project( + PROJ LHC + GIT_REPOSITORY @CPM_ARGS_GIT_REPOSITORY@ + GIT_TAG @CPM_ARGS_GIT_TAG@ + UPDATE_DISCONNECTED 1 + GIT_SHALLOW 1 + PREFIX @CPM_ARGS_BINARY_DIR@/dl + QUIET + ) + +message("test: add_subdirectory(${@CPM_ARGS_NAME@_SOURCE_DIR} ${@CPM_ARGS_NAME@_BINARY_DIR})") + add_subdirectory(${@CPM_ARGS_NAME@_SOURCE_DIR} ${@CPM_ARGS_NAME@_BINARY_DIR}) +endif() diff --git a/DownloadProject.CMakeLists.cmake.in b/DownloadProject.CMakeLists.cmake.in new file mode 100755 index 0000000..89be4fd --- /dev/null +++ b/DownloadProject.CMakeLists.cmake.in @@ -0,0 +1,17 @@ +# Distributed under the OSI-approved MIT License. See accompanying +# file LICENSE or https://github.com/Crascit/DownloadProject for details. + +cmake_minimum_required(VERSION 2.8.2) + +project(${DL_ARGS_PROJ}-download NONE) + +include(ExternalProject) +ExternalProject_Add(${DL_ARGS_PROJ}-download + ${DL_ARGS_UNPARSED_ARGUMENTS} + SOURCE_DIR "${DL_ARGS_SOURCE_DIR}" + BINARY_DIR "${DL_ARGS_BINARY_DIR}" + CONFIGURE_COMMAND "" + BUILD_COMMAND "" + INSTALL_COMMAND "" + TEST_COMMAND "" +) diff --git a/DownloadProject.cmake b/DownloadProject.cmake new file mode 100755 index 0000000..e300f42 --- /dev/null +++ b/DownloadProject.cmake @@ -0,0 +1,182 @@ +# 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) + set(oneValueArgs + PROJ + 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) + + # The way that CLion manages multiple configurations, it causes a copy of + # the CMakeCache.txt to be copied across due to it not expecting there to + # be a project within a project. This causes the hard-coded paths in the + # cache to be copied and builds to fail. To mitigate this, we simply + # remove the cache if it exists before we configure the new project. It + # is safe to do so because it will be re-generated. Since this is only + # executed at the configure step, it should not cause additional builds or + # downloads. + file(REMOVE "${DL_ARGS_DOWNLOAD_DIR}/CMakeCache.txt") + + # Create and build a separate CMake project to carry out the download. + # If we've already previously done these steps, they will not cause + # anything to be updated, so extra rebuilds of the project won't occur. + # Make sure to pass through CMAKE_MAKE_PROGRAM in case the main project + # has this set to something not findable on the PATH. + configure_file("${_DownloadProjectDir}/DownloadProject.CMakeLists.cmake.in" + "${DL_ARGS_DOWNLOAD_DIR}/CMakeLists.txt") + 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) + 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) + message(FATAL_ERROR "Build step for ${DL_ARGS_PROJ} failed: ${result}") + endif() + +endfunction() diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt new file mode 100644 index 0000000..2d6bbc7 --- /dev/null +++ b/test/CMakeLists.txt @@ -0,0 +1,31 @@ +cmake_minimum_required(VERSION 3.5 FATAL_ERROR) + +project(CPMTest) + +include(${CMAKE_CURRENT_SOURCE_DIR}/../CPM.cmake) + +CPMAddPackage( + NAME LHC + GIT_REPOSITORY https://github.com/TheLartians/LHC.git + VERSION 0.3 +) + +CPMAddPackage( + NAME LarsEvent + GIT_REPOSITORY https://github.com/TheLartians/Event.git + VERSION 1.0 +) + +# Add project that depends on previous project +CPMAddPackage( + NAME LarsParser + GIT_REPOSITORY https://github.com/TheLartians/Parser.git + VERSION 1.2 +) + +# add project twice +CPMAddPackage( + NAME LHC + GIT_REPOSITORY https://github.com/TheLartians/LHC.git + VERSION 0.3 +)