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Create YCMBootstrapFetch to permit projects to bootstrap YCM using Fe…
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| # SPDX-FileCopyrightText: 2012-2021 Istituto Italiano di Tecnologia (IIT) | ||
| # SPDX-License-Identifier: BSD-3-Clause | ||
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| # This module can be used to use YCM modules directly from the source repo, | ||
| # to just use them in the build without installing them. | ||
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| if(DEFINED __USEYCMFROMSOURCE_INCLUDED) | ||
| return() | ||
| endif() | ||
| set(__USEYCMFROMSOURCE_INCLUDED TRUE) | ||
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| get_filename_component(_YCM_SRC_DIR ${CMAKE_CURRENT_LIST_DIR} DIRECTORY) | ||
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| list(APPEND CMAKE_MODULE_PATH ${_YCM_SRC_DIR}/modules) | ||
| list(APPEND CMAKE_MODULE_PATH ${_YCM_SRC_DIR}/find-modules) | ||
| list(APPEND CMAKE_MODULE_PATH ${_YCM_SRC_DIR}/build-modules) | ||
| list(APPEND CMAKE_MODULE_PATH ${_YCM_SRC_DIR}/style-modules) | ||
| list(APPEND CMAKE_MODULE_PATH ${_YCM_SRC_DIR}/cmake-next/proposed) |
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| # SPDX-FileCopyrightText: 2012-2021 Istituto Italiano di Tecnologia (IIT) | ||
| # SPDX-License-Identifier: BSD-3-Clause | ||
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| # This module is intentionally kept as small as possible in order to | ||
| # avoid the spreading of different modules. | ||
| # | ||
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| # CMake variables read as input by this module: | ||
| # YCM_MINIMUM_VERSION : minimum version of YCM requested to use a system YCM | ||
| # YCM_TAG : if no suitable system YCM was found, bootstrap from this | ||
| # : TAG (either branch, commit or tag) of YCM repository | ||
| # USE_SYSTEM_YCM : if defined and set FALSE, skip searching for a system | ||
| # YCM and always bootstrap | ||
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| if(DEFINED __YCMBOOTSTRAP_INCLUDED) | ||
| return() | ||
| endif() | ||
| set(__YCMBOOTSTRAP_INCLUDED TRUE) | ||
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| ######################################################################## | ||
| # _YCM_CLEAN_PATH | ||
| # | ||
| # Internal function that removes a directory and its subfolder from an | ||
| # environment variable. | ||
| # This is useful because will stop CMake from finding the external | ||
| # projects built in the main project on the second CMake run. | ||
| # | ||
| # _path: path that should be removed | ||
| # _envvar: environment variable to clean | ||
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| function(_YCM_CLEAN_PATH _path _envvar) | ||
| get_filename_component(_path ${_path} REALPATH) | ||
| set(_var_new "") | ||
| if(NOT "$ENV{${_envvar}}" MATCHES "^$") | ||
| file(TO_CMAKE_PATH "$ENV{${_envvar}}" _var_old) | ||
| if(NOT WIN32) | ||
| # CMake handles correctly ":" except for the first character | ||
| string(REPLACE ":" ";" _var_old "${_var_old}") | ||
| endif() | ||
| foreach(_dir ${_var_old}) | ||
| get_filename_component(_dir ${_dir} REALPATH) | ||
| if(NOT "${_dir}" MATCHES "^${_path}") | ||
| list(APPEND _var_new ${_dir}) | ||
| endif() | ||
| endforeach() | ||
| endif() | ||
| list(REMOVE_DUPLICATES _var_new) | ||
| file(TO_NATIVE_PATH "${_var_new}" _var_new) | ||
| if(NOT WIN32) | ||
| string(REPLACE ";" ":" _var_new "${_var_new}") | ||
| endif() | ||
| set(ENV{${_envvar}} "${_var_new}") | ||
| endfunction() | ||
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| # Remove binary dir from CMAKE_PREFIX_PATH and PATH before searching for | ||
| # YCM, in order to avoid to find the YCM version bootstrapped by YCM | ||
| # itself. | ||
| _ycm_clean_path("${CMAKE_BINARY_DIR}/install" CMAKE_PREFIX_PATH) | ||
| _ycm_clean_path("${CMAKE_BINARY_DIR}/install" PATH) | ||
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| # If the USE_SYSTEM_YCM is explicitly set to false, we just skip to bootstrap. | ||
| if(NOT DEFINED USE_SYSTEM_YCM OR USE_SYSTEM_YCM) | ||
| find_package(YCM ${YCM_MINIMUM_VERSION} QUIET) | ||
| if(COMMAND set_package_properties) | ||
| set_package_properties(YCM PROPERTIES TYPE RECOMMENDED | ||
| PURPOSE "Used by the build system") | ||
| endif() | ||
| if(YCM_FOUND) | ||
| message(STATUS "YCM found in ${YCM_MODULE_DIR}.") | ||
| set_property(GLOBAL APPEND PROPERTY YCM_PROJECTS YCM) | ||
| return() | ||
| endif() | ||
| endif() | ||
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| message(STATUS "YCM not found. Bootstrapping it.") | ||
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| # Download and use a copy of the YCM library for bootstrapping | ||
| # This is different from the YCM that will be downloaded as part of the superbuild | ||
| include(FetchContent) | ||
| if(DEFINED YCM_TAG) | ||
| set(YCM_FETCHCONTENT_TAG ${YCM_TAG}) | ||
| else() | ||
| set(YCM_FETCHCONTENT_TAG master) | ||
| endif() | ||
| FetchContent_Declare(YCM | ||
| GIT_REPOSITORY https://github.com/robotology/ycm | ||
| GIT_TAG ${YCM_FETCHCONTENT_TAG}) | ||
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| FetchContent_GetProperties(YCM) | ||
| if(NOT YCM_POPULATED) | ||
| message(STATUS "Fetching YCM.") | ||
| FetchContent_Populate(YCM) | ||
| # Add YCM modules in CMAKE_MODULE_PATH | ||
| include(${ycm_SOURCE_DIR}/tools/UseYCMFromSource.cmake) | ||
| endif() | ||
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