| Austin Schuh | cbc1740 | 2019-01-21 21:00:30 -0800 | [diff] [blame^] | 1 | # - Returns a version string from Git tags |
| 2 | # |
| 3 | # This function inspects the annotated git tags for the project and returns a string |
| 4 | # into a CMake variable |
| 5 | # |
| 6 | # get_git_version(<var>) |
| 7 | # |
| 8 | # - Example |
| 9 | # |
| 10 | # include(GetGitVersion) |
| 11 | # get_git_version(GIT_VERSION) |
| 12 | # |
| 13 | # Requires CMake 2.8.11+ |
| 14 | find_package(Git) |
| 15 | |
| 16 | if(__get_git_version) |
| 17 | return() |
| 18 | endif() |
| 19 | set(__get_git_version INCLUDED) |
| 20 | |
| 21 | function(get_git_version var) |
| 22 | if(GIT_EXECUTABLE) |
| 23 | execute_process(COMMAND ${GIT_EXECUTABLE} describe --match "v[0-9]*.[0-9]*.[0-9]*" --abbrev=8 |
| 24 | WORKING_DIRECTORY ${PROJECT_SOURCE_DIR} |
| 25 | RESULT_VARIABLE status |
| 26 | OUTPUT_VARIABLE GIT_VERSION |
| 27 | ERROR_QUIET) |
| 28 | if(${status}) |
| 29 | set(GIT_VERSION "v0.0.0") |
| 30 | else() |
| 31 | string(STRIP ${GIT_VERSION} GIT_VERSION) |
| 32 | string(REGEX REPLACE "-[0-9]+-g" "-" GIT_VERSION ${GIT_VERSION}) |
| 33 | endif() |
| 34 | |
| 35 | # Work out if the repository is dirty |
| 36 | execute_process(COMMAND ${GIT_EXECUTABLE} update-index -q --refresh |
| 37 | WORKING_DIRECTORY ${PROJECT_SOURCE_DIR} |
| 38 | OUTPUT_QUIET |
| 39 | ERROR_QUIET) |
| 40 | execute_process(COMMAND ${GIT_EXECUTABLE} diff-index --name-only HEAD -- |
| 41 | WORKING_DIRECTORY ${PROJECT_SOURCE_DIR} |
| 42 | OUTPUT_VARIABLE GIT_DIFF_INDEX |
| 43 | ERROR_QUIET) |
| 44 | string(COMPARE NOTEQUAL "${GIT_DIFF_INDEX}" "" GIT_DIRTY) |
| 45 | if (${GIT_DIRTY}) |
| 46 | set(GIT_VERSION "${GIT_VERSION}-dirty") |
| 47 | endif() |
| 48 | else() |
| 49 | set(GIT_VERSION "v0.0.0") |
| 50 | endif() |
| 51 | |
| 52 | message(STATUS "git Version: ${GIT_VERSION}") |
| 53 | set(${var} ${GIT_VERSION} PARENT_SCOPE) |
| 54 | endfunction() |