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a4bcd937b2
* cmake: fix handling the case where `git describe` fails * cmake: fix version recorded in releases If downloaded as a tarball release, there will be no info from git to determine the release, so it ends up v0.0.0. If that's the case, we'll now use the release specified in the project() command, which needs to be updated for each new release. * cmake: add `--tags` to `git describe` That way, lightweight tags will also be taken into account, which should never hurt, but it'll help in cases where, for some mysterious reason or other, annotated tags don't make it into a clone. * update releasing.md
59 lines
1.8 KiB
CMake
59 lines
1.8 KiB
CMake
# - Returns a version string from Git tags
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#
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# This function inspects the annotated git tags for the project and returns a string
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# into a CMake variable
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#
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# get_git_version(<var>)
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#
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# - Example
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#
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# include(GetGitVersion)
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# get_git_version(GIT_VERSION)
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#
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# Requires CMake 2.8.11+
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find_package(Git)
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if(__get_git_version)
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return()
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endif()
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set(__get_git_version INCLUDED)
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function(get_git_version var)
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if(GIT_EXECUTABLE)
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execute_process(COMMAND ${GIT_EXECUTABLE} describe --tags --match "v[0-9]*.[0-9]*.[0-9]*" --abbrev=8
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WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
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RESULT_VARIABLE status
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OUTPUT_VARIABLE GIT_DESCRIBE_VERSION
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ERROR_QUIET)
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if(status)
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set(GIT_DESCRIBE_VERSION "v0.0.0")
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endif()
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string(STRIP ${GIT_DESCRIBE_VERSION} GIT_DESCRIBE_VERSION)
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if(GIT_DESCRIBE_VERSION MATCHES v[^-]*-)
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string(REGEX REPLACE "v([^-]*)-([0-9]+)-.*" "\\1.\\2" GIT_VERSION ${GIT_DESCRIBE_VERSION})
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else()
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string(REGEX REPLACE "v(.*)" "\\1" GIT_VERSION ${GIT_DESCRIBE_VERSION})
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endif()
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# Work out if the repository is dirty
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execute_process(COMMAND ${GIT_EXECUTABLE} update-index -q --refresh
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WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
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OUTPUT_QUIET
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ERROR_QUIET)
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execute_process(COMMAND ${GIT_EXECUTABLE} diff-index --name-only HEAD --
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WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
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OUTPUT_VARIABLE GIT_DIFF_INDEX
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ERROR_QUIET)
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string(COMPARE NOTEQUAL "${GIT_DIFF_INDEX}" "" GIT_DIRTY)
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if (${GIT_DIRTY})
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set(GIT_DESCRIBE_VERSION "${GIT_DESCRIBE_VERSION}-dirty")
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endif()
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message(STATUS "git version: ${GIT_DESCRIBE_VERSION} normalized to ${GIT_VERSION}")
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else()
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set(GIT_VERSION "0.0.0")
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endif()
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set(${var} ${GIT_VERSION} PARENT_SCOPE)
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endfunction()
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