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cmake: read project version from the version.hpp file

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This commit is contained in:
Eugene Shalygin 2018-11-15 18:20:02 +01:00 committed by Arvid Norberg
parent 5f26ff9f62
commit 04fd20d62b
2 changed files with 31 additions and 3 deletions
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9
CMakeLists.txt
View File

@ -1,15 +1,18 @@
cmake_minimum_required(VERSION 3.12.0 FATAL_ERROR) cmake_minimum_required(VERSION 3.12.0 FATAL_ERROR)
list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules)
include(LibtorrentMacros)
read_version("${CMAKE_CURRENT_SOURCE_DIR}/include/libtorrent/version.hpp" VER_MAJOR VER_MINOR VER_TINY)
project(libtorrent project(libtorrent
DESCRIPTION "Bittorrent library" DESCRIPTION "Bittorrent library"
VERSION 1.2.0 VERSION ${VER_MAJOR}.${VER_MINOR}.${VER_TINY}
) )
set (SOVERSION "10") set (SOVERSION "10")
list(APPEND CMAKE_MODULE_PATH ${libtorrent_SOURCE_DIR}/cmake/Modules)
include(GNUInstallDirs) include(GNUInstallDirs)
include(GeneratePkgConfig) include(GeneratePkgConfig)
include(LibtorrentMacros)
set(libtorrent_include_files set(libtorrent_include_files
add_torrent_params add_torrent_params

25
cmake/Modules/LibtorrentMacros.cmake
View File

@ -80,3 +80,28 @@ function(select_cxx_standard _target _minimal_supported_version)
message(STATUS "Building in C++${_std} mode") message(STATUS "Building in C++${_std} mode")
endfunction() endfunction()
# function for parsing version variables that are set in version.hpp file
# the version identifiers there are defined as follows:
# #define LIBTORRENT_VERSION_MAJOR 1
# #define LIBTORRENT_VERSION_MINOR 2
# #define LIBTORRENT_VERSION_TINY 0
function(read_version _verFile _outVarMajor _outVarMinor _outVarTiny)
file(STRINGS ${_verFile} verFileContents REGEX ".+LIBTORRENT_VERSION_[A-Z]+.[0-9]+.*")
# message(STATUS "version file contents: ${verFileContents}")
# the verFileContents variable contains something like the following:
# #define LIBTORRENT_VERSION_MAJOR 1;#define LIBTORRENT_VERSION_MINOR 2;#define LIBTORRENT_VERSION_TINY 0
set(_regex ".+_MAJOR +([0-9]+);.+_MINOR +([0-9]+);.+_TINY +([0-9]+)")
# note quotes around _regex, they are needed because the variable contains semicolons
string(REGEX MATCH "${_regex}" _tmp "${verFileContents}")
if (NOT _tmp)
message(FATAL_ERROR "Could not detect project version number from ${_verFile}")
endif()
# message(STATUS "Matched version string: ${_tmp}")
set(${_outVarMajor} ${CMAKE_MATCH_1} PARENT_SCOPE)
set(${_outVarMinor} ${CMAKE_MATCH_2} PARENT_SCOPE)
set(${_outVarTiny} ${CMAKE_MATCH_3} PARENT_SCOPE)
endfunction()