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Cleanup CMake makefiles for nlohmann_json. (#1912)
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -1,42 +1,100 @@ | ||
if("${nlohmann-json}" STREQUAL "") | ||
set(nlohmann-json "develop") | ||
endif() | ||
include(ExternalProject) | ||
ExternalProject_Add(nlohmann_json_download | ||
PREFIX third_party | ||
GIT_REPOSITORY https://github.com/nlohmann/json.git | ||
GIT_TAG | ||
"${nlohmann-json}" | ||
UPDATE_COMMAND "" | ||
CMAKE_ARGS | ||
-DCMAKE_INSTALL_PREFIX=${CMAKE_INSTALL_PREFIX} | ||
-DJSON_BuildTests=OFF | ||
-DJSON_Install=ON | ||
-DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE} | ||
TEST_AFTER_INSTALL | ||
0 | ||
DOWNLOAD_NO_PROGRESS | ||
1 | ||
LOG_CONFIGURE | ||
1 | ||
LOG_BUILD | ||
1 | ||
LOG_INSTALL | ||
1 | ||
) | ||
# Copyright The OpenTelemetry Authors | ||
# SPDX-License-Identifier: Apache-2.0 | ||
|
||
# | ||
# The dependency on nlohmann_json can be provided different ways. | ||
# By order of decreasing priority, options are: | ||
# | ||
# 1 - Search for a nlohmann_json package | ||
# | ||
# Packages installed on the local machine are used if found. | ||
# | ||
# The nlohmann_json dependency is not installed, | ||
# as it already is. | ||
# | ||
# 2 - Search for a nlohmann_json git submodule | ||
# | ||
# When git submodule is used, | ||
# the nlohmann_json code is located in: | ||
# third_party/nlohmann-json | ||
# | ||
# The nlohmann_json dependency is installed, | ||
# by building the sub directory with JSON_Install=ON | ||
# | ||
# 3 - Download nlohmann_json from github | ||
# | ||
# Code from the development branch is used, | ||
# unless a specific release tag is provided | ||
# in variable ${nlohmann-json} | ||
# | ||
# The nlohmann_json dependency is installed, | ||
# by building the downloaded code with JSON_Install=ON | ||
# | ||
|
||
|
||
ExternalProject_Get_Property(nlohmann_json_download INSTALL_DIR) | ||
SET(NLOHMANN_JSON_INCLUDE_DIR ${INSTALL_DIR}/src/nlohmann_json_download/single_include) | ||
add_library(nlohmann_json_ INTERFACE) | ||
target_include_directories(nlohmann_json_ INTERFACE | ||
"$<BUILD_INTERFACE:${NLOHMANN_JSON_INCLUDE_DIR}>" | ||
"$<INSTALL_INTERFACE:include>") | ||
add_dependencies(nlohmann_json_ nlohmann_json_download) | ||
add_library(nlohmann_json::nlohmann_json ALIAS nlohmann_json_) | ||
# nlohmann_json package is required for most SDK build configurations | ||
find_package(nlohmann_json QUIET) | ||
set(nlohmann_json_clone FALSE) | ||
if(nlohmann_json_FOUND) | ||
message(STATUS "nlohmann::json dependency satisfied by: package") | ||
elseif(EXISTS ${PROJECT_SOURCE_DIR}/.git | ||
AND EXISTS | ||
${PROJECT_SOURCE_DIR}/third_party/nlohmann-json/CMakeLists.txt) | ||
message(STATUS "nlohmann::json dependency satisfied by: git submodule") | ||
set(JSON_BuildTests | ||
OFF | ||
CACHE INTERNAL "") | ||
set(JSON_Install | ||
ON | ||
CACHE INTERNAL "") | ||
# This option allows to link nlohmann_json::nlohmann_json target | ||
add_subdirectory(${PROJECT_SOURCE_DIR}/third_party/nlohmann-json) | ||
# This option allows to add header to include directories | ||
include_directories( | ||
${PROJECT_SOURCE_DIR}/third_party/nlohmann-json/single_include) | ||
else() | ||
if("${nlohmann-json}" STREQUAL "") | ||
set(nlohmann-json "develop") | ||
endif() | ||
message(STATUS "nlohmann::json dependency satisfied by: github download") | ||
set(nlohmann_json_clone TRUE) | ||
include(ExternalProject) | ||
ExternalProject_Add(nlohmann_json_download | ||
PREFIX third_party | ||
GIT_REPOSITORY https://github.com/nlohmann/json.git | ||
GIT_TAG | ||
"${nlohmann-json}" | ||
UPDATE_COMMAND "" | ||
CMAKE_ARGS | ||
-DCMAKE_INSTALL_PREFIX=${CMAKE_INSTALL_PREFIX} | ||
-DJSON_BuildTests=OFF | ||
-DJSON_Install=ON | ||
-DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE} | ||
TEST_AFTER_INSTALL | ||
0 | ||
DOWNLOAD_NO_PROGRESS | ||
1 | ||
LOG_CONFIGURE | ||
1 | ||
LOG_BUILD | ||
1 | ||
LOG_INSTALL | ||
1 | ||
) | ||
|
||
install( | ||
TARGETS nlohmann_json_ | ||
EXPORT "${PROJECT_NAME}-target" | ||
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} | ||
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} | ||
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}) | ||
ExternalProject_Get_Property(nlohmann_json_download INSTALL_DIR) | ||
SET(NLOHMANN_JSON_INCLUDE_DIR ${INSTALL_DIR}/src/nlohmann_json_download/single_include) | ||
add_library(nlohmann_json_ INTERFACE) | ||
target_include_directories(nlohmann_json_ INTERFACE | ||
"$<BUILD_INTERFACE:${NLOHMANN_JSON_INCLUDE_DIR}>" | ||
"$<INSTALL_INTERFACE:include>") | ||
add_dependencies(nlohmann_json_ nlohmann_json_download) | ||
add_library(nlohmann_json::nlohmann_json ALIAS nlohmann_json_) | ||
|
||
install( | ||
TARGETS nlohmann_json_ | ||
EXPORT "${PROJECT_NAME}-target" | ||
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} | ||
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} | ||
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}) | ||
endif() |