mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-19 10:35:42 +00:00
cf91ca520e
The code had 2 issues: 1. used obsolete 'output' if Git executable was missing. There was a possibility that output variable was never set and used some garbage value from parent scope. 2. version pattern matching was too liberal and would match absolute any long txt so long as it has some numbers in it that matched a typical version number.
107 lines
4.3 KiB
CMake
107 lines
4.3 KiB
CMake
##============================================================================
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## Copyright (c) Kitware, Inc.
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## All rights reserved.
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## See LICENSE.txt for details.
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## This software is distributed WITHOUT ANY WARRANTY; without even
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## the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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## PURPOSE. See the above copyright notice for more information.
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##
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## Copyright 2017 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
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## Copyright 2017 UT-Battelle, LLC.
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## Copyright 2017 Los Alamos National Security.
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##
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## Under the terms of Contract DE-NA0003525 with NTESS,
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## the U.S. Government retains certain rights in this software.
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##
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## Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
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## Laboratory (LANL), the U.S. Government retains certain rights in
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## this software.
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##============================================================================
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# Used to determine the version for VTK-m source using "git describe", if git
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# is found. On success sets the following variables in caller's scope:
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# ${var_prefix}_VERSION
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# ${var_prefix}_VERSION_MAJOR
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# ${var_prefix}_VERSION_MINOR
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# ${var_prefix}_VERSION_PATCH
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# ${var_prefix}_VERSION_PATCH_EXTRA
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# ${var_prefix}_VERSION_FULL
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# ${var_prefix}_VERSION_IS_RELEASE is true, if patch-extra is empty.
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#
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# If git is not found, or git describe cannot be run successfully, then these
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# variables are left unchanged and a status message is printed.
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#
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# Arguments are:
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# source_dir : Source directory
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# git_command : git executable
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# var_prefix : prefix for variables e.g. "VTKm".
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function(determine_version source_dir git_command var_prefix)
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if ("$Format:$" STREQUAL "")
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# We are in an exported tarball and should use the shipped version
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# information. Just return here to avoid the warning message at the end of
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# this function.
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return ()
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elseif (NOT VTKm_GIT_DESCRIBE AND
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EXISTS ${git_command} AND
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EXISTS ${source_dir}/.git)
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execute_process(
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COMMAND ${git_command} describe
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WORKING_DIRECTORY ${source_dir}
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RESULT_VARIABLE result
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OUTPUT_VARIABLE output
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ERROR_QUIET
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OUTPUT_STRIP_TRAILING_WHITESPACE
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ERROR_STRIP_TRAILING_WHITESPACE)
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if (NOT result EQUAL 0)
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# git describe failed (bad return code).
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set(output "")
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endif()
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else ()
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# note, output may be set to empty if VTKm_GIT_DESCRIBE is not defined.
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set(output "${VTKm_GIT_DESCRIBE}")
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endif()
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unset(tmp_VERSION)
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extract_version_components("${output}" tmp)
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if(DEFINED tmp_VERSION)
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if (NOT "${tmp_VERSION}" STREQUAL "${${var_prefix}_VERSION}")
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message(WARNING
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"Version from git (${tmp_VERSION}) disagrees with hard coded version (${${var_prefix}_VERSION}). Either update the git tags or version.txt.")
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endif()
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foreach(suffix VERSION VERSION_MAJOR VERSION_MINOR VERSION_PATCH
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VERSION_PATCH_EXTRA VERSION_FULL VERSION_IS_RELEASE)
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set(${var_prefix}_${suffix} ${tmp_${suffix}} PARENT_SCOPE)
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endforeach()
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else()
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message(STATUS
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"Could not use git to determine source version, using version ${${var_prefix}_VERSION_FULL}")
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endif()
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endfunction()
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# Extracts components from a version string. See determine_version() for usage.
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function(extract_version_components version_string var_prefix)
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string(REGEX MATCH "^v?(([0-9]+)\\.([0-9]+)\\.([0-9]+)-?(.*))$"
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version_matches "${version_string}")
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if(CMAKE_MATCH_0)
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# note, we don't use CMAKE_MATCH_0 for `full` since it may or may not have
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# the `v` prefix.
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set(full ${CMAKE_MATCH_1})
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set(major ${CMAKE_MATCH_2})
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set(minor ${CMAKE_MATCH_3})
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set(patch ${CMAKE_MATCH_4})
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set(patch_extra ${CMAKE_MATCH_5})
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set(${var_prefix}_VERSION "${major}.${minor}" PARENT_SCOPE)
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set(${var_prefix}_VERSION_MAJOR ${major} PARENT_SCOPE)
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set(${var_prefix}_VERSION_MINOR ${minor} PARENT_SCOPE)
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set(${var_prefix}_VERSION_PATCH ${patch} PARENT_SCOPE)
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set(${var_prefix}_VERSION_PATCH_EXTRA ${patch_extra} PARENT_SCOPE)
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set(${var_prefix}_VERSION_FULL ${full} PARENT_SCOPE)
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if("${major}.${minor}.${patch}" VERSION_EQUAL "${full}")
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set(${var_prefix}_VERSION_IS_RELEASE TRUE PARENT_SCOPE)
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else()
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set(${var_prefix}_VERSION_IS_RELEASE FALSE PARENT_SCOPE)
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endif()
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endif()
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endfunction()
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