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Don't warn on tag missing when subproject (#653) (#655)

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Different solution than proposed in the issue, since that proposed
solution would given unexpected results when an intermediate
(untagged) commit is checked out.

This change simply skips warning about a missing git version when this
is a subproject, and uses the original version calculation logic.

I've also renamed `determine_version` to `determine_version_with_file`.
I'd originally done this in an intermediate version of this PR, but I
think that keeping the renaming is clearer code.
This commit is contained in:
Flaviu Tamas 2023-01-04 04:39:28 -05:00 committed by GitHub
parent e74f8b46de
commit e66750de53
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2 changed files with 7 additions and 3 deletions
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2
CMakeLists.txt
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@ -8,7 +8,7 @@ include(${CMAKE_CURRENT_SOURCE_DIR}/cmake/helpers.cmake)
set(MSG_PREFIX "etl |")
determine_version_with_git(${GIT_DIR_LOOKUP_POLICY})
if(NOT ETL_VERSION)
determine_version("version.txt")
determine_version_with_file("version.txt")
endif()
project(etl VERSION ${ETL_VERSION} LANGUAGES CXX)

8
cmake/helpers.cmake
View File

@ -1,4 +1,4 @@
function(determine_version VER_FILE_NAME)
function(determine_version_with_file VER_FILE_NAME)
file(READ ${VER_FILE_NAME} ETL_VERSION_RAW)
# Remove trailing whitespaces and/or newline
string(STRIP ${ETL_VERSION_RAW} ETL_VERSION)
@ -13,7 +13,11 @@ function(determine_version_with_git)
git_describe(VERSION ${ARGN})
string(FIND ${VERSION} "." VALID_VERSION)
if(VALID_VERSION EQUAL -1)
message(WARNING "Version string ${VERSION} retrieved with git describe is invalid")
if(PROJECT_IS_TOP_LEVEL)
# only warn if this is the top-level project, since we may be
# building from a tarball as a subproject
message(WARNING "Version string ${VERSION} retrieved with git describe is invalid")
endif()
return()
endif()
message(STATUS "${MSG_PREFIX} Version string determined with git describe: ${VERSION}")