get_git_version CMake function

This commit is contained in:
Matt Clarkson 2014-08-01 15:00:43 +01:00
parent d591edf513
commit c927845d5a
3 changed files with 52 additions and 23 deletions

1
.gitignore vendored
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@ -3,6 +3,7 @@
*.so.?* *.so.?*
*.dylib *.dylib
*.cmake *.cmake
!/cmake/*.cmake
*~ *~
/test/benchmark_test /test/benchmark_test
/test/re_test /test/re_test

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@ -1,6 +1,10 @@
cmake_minimum_required (VERSION 2.8) cmake_minimum_required (VERSION 2.8)
project (benchmark) project (benchmark)
# Make sure we can import out CMake functions
list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
# We need threads in this project
find_package(Threads REQUIRED) find_package(Threads REQUIRED)
# Import and build Google Test # Import and build Google Test
@ -39,31 +43,10 @@ if(${CMAKE_SYSTEM_PROCESSOR} MATCHES "x86")
endif() endif()
# Read the git tags to determine the project version # Read the git tags to determine the project version
execute_process(COMMAND git describe --match "v[0-9]*.[0-9]*.[0-9]*" --abbrev=8 include(GetGitVersion)
RESULT_VARIABLE status get_git_version(GIT_VERSION)
OUTPUT_VARIABLE GIT_VERSION
ERROR_QUIET)
if(${status})
set(GIT_VERSION "v0.0.0")
else()
string(STRIP ${GIT_VERSION} GIT_VERSION)
string(REGEX REPLACE "-[0-9]+-g" "-" GIT_VERSION ${GIT_VERSION})
endif()
# Work out if the repository is dirty
execute_process(COMMAND git update-index -q --refresh
OUTPUT_QUIET
ERROR_QUIET)
execute_process(COMMAND git diff-index --name-only HEAD --
OUTPUT_VARIABLE GIT_DIFF_INDEX
ERROR_QUIET)
string(COMPARE NOTEQUAL "${GIT_DIFF_INDEX}" "" GIT_DIRTY)
if (${GIT_DIRTY})
string(CONCAT GIT_VERSION ${GIT_VERSION} "-dirty")
endif()
# Tell the user what versions we are using # Tell the user what versions we are using
message("-- git Version: ${GIT_VERSION}")
string(REGEX MATCH "[0-9]+\\.[0-9]+\\.[0-9]+" VERSION ${GIT_VERSION}) string(REGEX MATCH "[0-9]+\\.[0-9]+\\.[0-9]+" VERSION ${GIT_VERSION})
message("-- Version: ${VERSION}") message("-- Version: ${VERSION}")

45
cmake/GetGitVersion.cmake Normal file
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@ -0,0 +1,45 @@
# - Returns a version string from Git tags
#
# This function inspects the annotated git tags for the project and returns a string
# into a CMake variable
#
# get_git_version(<var>)
#
# - Example
#
# include(GetGitVersion)
# get_git_version(GIT_VERSION)
#
# Requires CMake 2.6+
if(__get_git_version)
return()
endif()
set(__get_git_version INCLUDED)
function(get_git_version var)
execute_process(COMMAND git describe --match "v[0-9]*.[0-9]*.[0-9]*" --abbrev=8
RESULT_VARIABLE status
OUTPUT_VARIABLE GIT_VERSION
ERROR_QUIET)
if(${status})
set(GIT_VERSION "v0.0.0")
else()
string(STRIP ${GIT_VERSION} GIT_VERSION)
string(REGEX REPLACE "-[0-9]+-g" "-" GIT_VERSION ${GIT_VERSION})
endif()
# Work out if the repository is dirty
execute_process(COMMAND git update-index -q --refresh
OUTPUT_QUIET
ERROR_QUIET)
execute_process(COMMAND git diff-index --name-only HEAD --
OUTPUT_VARIABLE GIT_DIFF_INDEX
ERROR_QUIET)
string(COMPARE NOTEQUAL "${GIT_DIFF_INDEX}" "" GIT_DIRTY)
if (${GIT_DIRTY})
string(CONCAT GIT_VERSION ${GIT_VERSION} "-dirty")
endif()
message("-- git Version: ${GIT_VERSION}")
set(${var} ${GIT_VERSION} PARENT_SCOPE)
endfunction()