# This file is part of t8code.
# t8code is a C library to manage a collection (a forest) of multiple
# connected adaptive space-trees of general element types in parallel.
#
# Copyright (C) 2025 the developers
#
# t8code is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# t8code is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with t8code; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
find_package( Git REQUIRED )
if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/.git")
# See `scr/t8_version.h` for the documentation of following definitions.
execute_process( COMMAND ${GIT_EXECUTABLE} describe --tags --dirty
COMMAND cut -c 2-
WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}
OUTPUT_VARIABLE T8CODE_VERSION_RAW
OUTPUT_STRIP_TRAILING_WHITESPACE )
execute_process( COMMAND echo ${T8CODE_VERSION_RAW}
COMMAND cut -d- -f1
OUTPUT_VARIABLE T8CODE_VERSION_NUMBERS
OUTPUT_STRIP_TRAILING_WHITESPACE )
execute_process( COMMAND echo ${T8CODE_VERSION_RAW}
COMMAND cut -d- -f2-
OUTPUT_VARIABLE T8CODE_VERSION_POINT
OUTPUT_STRIP_TRAILING_WHITESPACE )
# To reuse the version in other CMakeLists.
else()
if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/version.txt")
file(READ "${CMAKE_CURRENT_SOURCE_DIR}/version.txt" VERSION_CONTENT)
# Extract the version number
string(REGEX MATCH "Version ([0-9])\.([0-9]+)\.([0-9]+)" VERSION_MATCH "${VERSION_CONTENT}" )
if (VERSION_MATCH)
# The version number will be in ${CMAKE_MATCH_1}
set(T8CODE_VERSION_NUMBERS "${CMAKE_MATCH_1}.${CMAKE_MATCH_2}.${CMAKE_MATCH_3}")
set(T8CODE_VERSION_RAW "${CMAKE_MATCH_1}.${CMAKE_MATCH_2}.${CMAKE_MATCH_3}")
message(STATUS "Extracted Version: ${T8CODE_VERSION_NUMBERS}")
else()
message(WARNING "Version number not found in version.txt")
endif()
else()
message(WARNING "Version information not found")
endif()
endif()
execute_process( COMMAND echo ${T8CODE_VERSION_NUMBERS}
COMMAND cut -d. -f1
OUTPUT_VARIABLE T8CODE_VERSION_MAJOR
OUTPUT_STRIP_TRAILING_WHITESPACE )
execute_process( COMMAND echo ${T8CODE_VERSION_NUMBERS}
COMMAND cut -d. -f2
OUTPUT_VARIABLE T8CODE_VERSION_MINOR
OUTPUT_STRIP_TRAILING_WHITESPACE )
execute_process( COMMAND echo ${T8CODE_VERSION_NUMBERS}
COMMAND cut -d. -f3
OUTPUT_VARIABLE T8CODE_VERSION_PATCH
OUTPUT_STRIP_TRAILING_WHITESPACE )
set(T8_VERSION ${T8CODE_VERSION_NUMBERS} CACHE INTERNAL "")
