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ca3d30d8e9
Rationale: since sol2 is a header-only library, some projects might
use it as a private dependency instead of exposing it through their API.
Thus, it is useful to have an option to not install sol2, in order to
reduce the installation size as well as to avoid accidentally exposing
internal dependencies in the top-level project.
The project I work on is a demonstration of how the feature might be
used:
f4a20ec39e/external/CMakeLists.txt (L84)
(mind the different name of the CMake variable, I renamed it to fit the rest
of the sol options convention)
We have an install-check script script which verifies that only expected
headers, libs, targets and docs are exported (the one which are interesting
from users PoV). I wouldn't mind contributing the script as github workflows
if you want to use it as well - please provide feedback if that's desired.
Here is a link to our script for preview:
https://github.com/GENIVI/ramses-logic/blob/master/ci/scripts/installation-check/check-installation.py
While modifying the CMake code, I noticed a 4-space instead of TAB in one
place and fixed it to be consistent with the rest of the CMake code.
78 lines
3.7 KiB
CMake
78 lines
3.7 KiB
CMake
# # # # sol3
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# The MIT License (MIT)
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#
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# Copyright (c) 2013-2019 Rapptz, ThePhD, and contributors
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy of
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# this software and associated documentation files (the "Software"), to deal in
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# the Software without restriction, including without limitation the rights to
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# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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# the Software, and to permit persons to whom the Software is furnished to do so,
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# subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in all
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# copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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# # # # sol3, single
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# # # Required minimum version statement
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cmake_minimum_required(VERSION 3.5.0)
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# single header files
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file(GLOB SOL2_SINGLE_HEADER_SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/include/**/*.hpp)
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source_group(sol2_single FILES ${SOL2_SINGLE_HEADER_SOURCES})
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# # # sol3 Library, single
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# # Add a target for sol3's library to be included by external users
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# # single version
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add_library(sol2_single INTERFACE)
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add_library(sol2::sol2_single ALIAS sol2_single)
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target_sources(sol2_single INTERFACE ${SOL2_SINGLE_HEADER_SOURCES})
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set_target_properties(sol2_single
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PROPERTIES
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EXPORT_NAME sol2::sol2_single)
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target_include_directories(sol2_single INTERFACE
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$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
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$<INSTALL_INTERFACE:sol/single/include>)
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# # # sol3 single generation header
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# generate the single header if we can find the python3 interpreter
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if (SOL2_GENERATE_SINGLE)
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find_package(PythonInterp 3)
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if (NOT PYTHONINTERP_FOUND)
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message(FATAL_ERROR "sol2 single header cannot be generated as python 3 has not been found: install or set the python 3 interpreter to generate the single header")
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endif()
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# to generate, need all of the existing header files
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file(GLOB sol2_generated_header_sources ${CMAKE_CURRENT_SOURCE_DIR}/../include/**/*.*)
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add_custom_command(
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COMMAND ${CMAKE_COMMAND} -E make_directory "${CMAKE_CURRENT_BINARY_DIR}/include/sol"
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COMMAND ${PYTHON_EXECUTABLE} "${CMAKE_CURRENT_SOURCE_DIR}/single.py" --input "${CMAKE_CURRENT_SOURCE_DIR}/../include" --output "${CMAKE_CURRENT_BINARY_DIR}/include/sol/sol.hpp"
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DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/single.py" "${sol2_generated_header_sources}"
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OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/include/sol/sol.hpp" "${CMAKE_CURRENT_BINARY_DIR}/include/sol/forward.hpp")
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add_custom_target(sol2_single_header_generator ALL
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DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/single.py"
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"${CMAKE_CURRENT_BINARY_DIR}/include/sol/sol.hpp" "${CMAKE_CURRENT_BINARY_DIR}/include/sol/forward.hpp"
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"${sol2_generated_header_sources}")
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# # # sol3 generated single header library
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add_library(sol2_single_generated INTERFACE)
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add_library(sol2::sol2_single_generated ALIAS sol2_single_generated)
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set_target_properties(sol2_single_generated
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PROPERTIES
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EXPORT_NAME sol2::sol2_single_generated
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INTERFACE_INCLUDE_DIRECTORIES "${CMAKE_CURRENT_BINARY_DIR}/include")
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add_dependencies(sol2_single_generated sol2_single_header_generator)
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if(SOL2_ENABLE_INSTALL)
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install(FILES "${CMAKE_CURRENT_BINARY_DIR}/include/sol/sol.hpp" "${CMAKE_CURRENT_BINARY_DIR}/include/sol/forward.hpp"
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DESTINATION include/sol/single/sol)
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endif()
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endif()
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