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|
# get_version.cmake
# Determine project version by using Git or a local .version file
set(__detect_version 0)
find_package(Git)
set(ERROR_FLAG "0")
if (GIT_FOUND AND EXISTS "${PROJECT_SOURCE_DIR}/.git")
# Working off a git repo, using git versioning
# Check if HEAD is pointing to a tag
execute_process (
COMMAND "${GIT_EXECUTABLE}" describe --always --tag
WORKING_DIRECTORY "${PROJECT_SOURCE_DIR}"
OUTPUT_VARIABLE PROJECT_VERSION
RESULT_VARIABLE GIT_DESCRIBE_RESULT
ERROR_VARIABLE GIT_DESCRIBE_ERROR
OUTPUT_STRIP_TRAILING_WHITESPACE
)
if (GIT_DESCRIBE_RESULT EQUAL 0)
# If the sources have been changed locally, add -dirty to the version.
execute_process (
COMMAND "${GIT_EXECUTABLE}" diff --quiet
WORKING_DIRECTORY "${PROJECT_SOURCE_DIR}"
RESULT_VARIABLE res
)
if (res EQUAL 1)
set(PROJECT_VERSION "${PROJECT_VERSION}-dirty")
endif()
# Strip a leading v off of the version as proceeding code expects just the version numbering.
string(REGEX REPLACE "^v" "" PROJECT_VERSION ${PROJECT_VERSION})
# Read version string
string(REGEX REPLACE "^(0|[1-9][0-9]*)[.](0|[1-9][0-9]*)[.](0|[1-9][0-9]*)(-[.0-9A-Za-z-]+)?([+][.0-9A-Za-z-]+)?$"
"\\1;\\2;\\3" PROJECT_VERSION_LIST ${PROJECT_VERSION})
list(LENGTH PROJECT_VERSION_LIST len)
if (len EQUAL 3)
list(GET PROJECT_VERSION_LIST 0 PROJECT_VERSION_MAJOR)
list(GET PROJECT_VERSION_LIST 1 PROJECT_VERSION_MINOR)
list(GET PROJECT_VERSION_LIST 2 PROJECT_VERSION_PATCH)
set(__detect_version 1)
set(__version_str "${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}.${PROJECT_VERSION_PATCH}")
# Compare git-Version with version read from .version file in source folder
if (EXISTS "${PROJECT_SOURCE_DIR}/.version")
# Local .version file found, read version string...
file(READ "${PROJECT_SOURCE_DIR}/.version" __version_file)
# ...the version does not match with git-version string
if (NOT __version_str STREQUAL __version_file)
message(STATUS "Rewrite ${PROJECT_SOURCE_DIR}/.version with ${__version_str}!")
endif()
elseif (NOT EXISTS "${PROJECT_SOURCE_DIR}/.version")
# No local .version file found: Create a new one...
file(WRITE "${PROJECT_SOURCE_DIR}/.version" ${__version_str})
endif()
message(STATUS "stlink version: ${PROJECT_VERSION}")
message(STATUS "Major ${PROJECT_VERSION_MAJOR} Minor ${PROJECT_VERSION_MINOR} Patch ${PROJECT_VERSION_PATCH}")
else (len EQUAL 3)
message(STATUS "Failed to extract version parts from \"${PROJECT_VERSION}\"")
set(ERROR_FLAG "1")
endif(len EQUAL 3)
else (GIT_DESCRIBE_RESULT EQUAL 0)
message(WARNING "git describe failed: ${GIT_DESCRIBE_ERROR}")
set(ERROR_FLAG "1")
endif(GIT_DESCRIBE_RESULT EQUAL 0)
endif()
##
# Failure to read version via git
# Possible cases:
# -> git is not found or
# -> /.git does not exist or
# -> GIT_DESCRIBE failed or
# -> version string is of invalid format
##
if (NOT GIT_FOUND OR NOT EXISTS "${PROJECT_SOURCE_DIR}/.git" OR ERROR_FLAG EQUAL 1)
message(STATUS "Git and/or repository not found.") # e.g. when building from source package
message(STATUS "Try to detect version from \"${PROJECT_SOURCE_DIR}/.version\" file instead...")
if (EXISTS ${PROJECT_SOURCE_DIR}/.version)
file(STRINGS .version PROJECT_VERSION)
# Read version string
string(REGEX REPLACE "^(0|[1-9][0-9]*)[.](0|[1-9][0-9]*)[.](0|[1-9][0-9]*)(-[.0-9A-Za-z-]+)?([+][.0-9A-Za-z-]+)?$"
"\\1;\\2;\\3" PROJECT_VERSION_LIST ${PROJECT_VERSION})
list(LENGTH PROJECT_VERSION_LIST len)
if (len EQUAL 3)
list(GET PROJECT_VERSION_LIST 0 PROJECT_VERSION_MAJOR)
list(GET PROJECT_VERSION_LIST 1 PROJECT_VERSION_MINOR)
list(GET PROJECT_VERSION_LIST 2 PROJECT_VERSION_PATCH)
set(__detect_version 1)
else ()
message(STATUS "Fail to extract version parts from \"${PROJECT_VERSION}\"")
endif()
else (EXISTS ${PROJECT_SOURCE_DIR}/.version)
message(STATUS "File \"${PROJECT_SOURCE_DIR}/.version\" does not exist.")
message(FATAL_ERROR "Unable to determine project version")
endif()
endif()
|
