libevent/cmake/VersionViaGit.cmake
Azat Khuzhin 3a1f47fd1d
Do not overwrite version from GIT if it is older then defaults
(cherry picked from commit 0344edf62dc49d822315a8d832f17be8d2c43643)
2019-02-02 14:16:49 +03:00

62 lines
1.8 KiB
CMake

# This module defines the following variables utilizing
# git to determine the parent tag. And if found the macro
# will attempt to parse them in the github tag fomat
#
# Usful for auto-versionin in ou CMakeLists
#
# EVENT_GIT___VERSION_MAJOR - Major version.
# EVENT_GIT___VERSION_MINOR - Minor version
# EVENT_GIT___VERSION_STAGE - Stage version
#
# Example usage:
#
# event_fuzzy_version_from_git()
# message("Libvent major=${EVENT_GIT___VERSION_MAJOR}")
# message(" minor=${EVENT_GIT___VERSION_MINOR}")
# message(" patch=${EVENT_GIT___VERSION_PATCH}")
# message(" stage=${EVENT_GIT___VERSION_STAGE}")
# endif()
include(FindGit)
macro(event_fuzzy_version_from_git)
# set our defaults.
set(EVENT_GIT___VERSION_MAJOR 2)
set(EVENT_GIT___VERSION_MINOR 1)
set(EVENT_GIT___VERSION_PATCH 8)
set(EVENT_GIT___VERSION_STAGE "beta")
find_package(Git)
if (GIT_FOUND)
execute_process(
COMMAND
${GIT_EXECUTABLE} describe --abbrev=0
WORKING_DIRECTORY
${PROJECT_SOURCE_DIR}
RESULT_VARIABLE
GITRET
OUTPUT_VARIABLE
GITVERSION
OUTPUT_STRIP_TRAILING_WHITESPACE)
if (GITRET EQUAL 0)
string(REGEX REPLACE "[\\._-]" ";" VERSION_LIST "${GITVERSION}")
list(GET VERSION_LIST 1 _MAJOR)
list(GET VERSION_LIST 2 _MINOR)
list(GET VERSION_LIST 3 _PATCH)
list(GET VERSION_LIST 4 _STAGE)
set(_DEFAULT_VERSION "${EVENT_GIT___VERSION_MAJOR}.${EVENT_GIT___VERSION_MINOR}.${EVENT_GIT___VERSION_PATCH}-${EVENT_GIT___VERSION_STAGE}")
set(_GIT_VERSION "${_MAJOR}.${_MINOR}.${_PATCH}-${_STAGE}")
if (${_DEFAULT_VERSION} VERSION_LESS ${_GIT_VERSION})
set(EVENT_GIT___VERSION_MAJOR ${_MAJOR})
set(EVENT_GIT___VERSION_MINOR ${_MINOR})
set(EVENT_GIT___VERSION_PATCH ${_PATCH})
set(EVENT_GIT___VERSION_STAGE ${_STAGE})
endif()
endif()
endif()
endmacro()