diff options
Diffstat (limited to 'cmake/Version.cmake')
| -rw-r--r-- | cmake/Version.cmake | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/cmake/Version.cmake b/cmake/Version.cmake new file mode 100644 index 0000000..a061e48 --- /dev/null +++ b/cmake/Version.cmake @@ -0,0 +1,80 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Copyright (C) 2020 Manuel Bentele <development@manuel-bentele.de> +# + +macro(gen_project_version VERSION_INPUT_FILE VERSION_INPUT_FILE_TEMPLATE VERSION_OUTPUT_FILE) + get_filename_component(VERSION_OUTPUT_FILENAME ${VERSION_OUTPUT_FILE} NAME) + # command that will trigger a rebuild of version.h every time + add_custom_command(OUTPUT regenerate-version-file + COMMAND ${CMAKE_COMMAND} -E sleep 0 + COMMENT "Trigger generating ${VERSION_OUTPUT_FILENAME}") + + # call the GenerateVersion.cmake file to generate the version.c file + add_custom_command(OUTPUT ${VERSION_OUTPUT_FILE} + COMMAND ${CMAKE_COMMAND} -D VERSION_MODULE_PATH=${PROJECT_MODULES_DIR} + -D VERSION_INPUT_FILE=${VERSION_INPUT_FILE} + -D VERSION_INPUT_FILE_TEMPLATE=${VERSION_INPUT_FILE_TEMPLATE} + -D VERSION_OUTPUT_FILE=${VERSION_OUTPUT_FILE} + -D VERSION_BUILD_TYPE=${CMAKE_BUILD_TYPE} + -P ${PROJECT_MODULES_DIR}/GenerateVersion.cmake + COMMENT "Generating ${VERSION_OUTPUT_FILENAME}" + DEPENDS regenerate-version-file) + add_custom_target(xloop-generate-version DEPENDS ${VERSION_OUTPUT_FILE}) + + # create target to expose project version + add_library(xloop-version INTERFACE) + target_include_directories(xloop-version INTERFACE ${PROJECT_INCLUDE_GEN_DIR}) + add_dependencies(xloop-version xloop-generate-version) +endmacro(gen_project_version VERSION_INPUT_FILE VERSION_INPUT_FILE_TEMPLATE VERSION_OUTPUT_FILE) + +# macro to get Linux kernel version from KERNEL_BUILD_DIR string +macro(get_kernel_version LINUX_KERNEL_VERSION KERNEL_BUILD_DIR) + string(REGEX MATCH "[0-9]+\\.[0-9]+\\.[0-9]+" LINUX_KERNEL_VERSION ${KERNEL_BUILD_DIR}) + if(LINUX_KERNEL_VERSION STREQUAL "") + set(LINUX_KERNEL_VERSION "unknown") + endif(LINUX_KERNEL_VERSION STREQUAL "") +endmacro(get_kernel_version LINUX_KERNEL_VERSION KERNEL_BUILD_DIR) + +# macro to get Git version information +macro(get_repository_version REPOSITORY_VERSION VERSION_HEADER_FILE VERSION_BUILD_TYPE) + # check if generated version header from source package is available + if(EXISTS ${VERSION_HEADER_FILE}) + # get version information from the generated version header of the source package + file(READ ${VERSION_HEADER_FILE} GIT_VERSION) + string(REGEX MATCH "\"(([0-9]+:)?[0-9][A-Za-z0-9.+~-]*)\"" GIT_VERSION ${GIT_VERSION}) + set(GIT_VERSION "${CMAKE_MATCH_1}") + else(EXISTS ${VERSION_HEADER_FILE}) + # get detailed Git version information from Git repository + execute_process(COMMAND git describe HEAD + OUTPUT_VARIABLE GIT_VERSION + OUTPUT_STRIP_TRAILING_WHITESPACE) + + # remove the first letter of the version to satisfy packaging rules + string(REGEX MATCH "([0-9]+:)?[0-9][A-Za-z0-9.+~-]*" GIT_VERSION ${GIT_VERSION}) + + # overwrite version from Git if version is unknown + if(GIT_VERSION STREQUAL "") + set(GIT_VERSION "unknown") + endif(GIT_VERSION STREQUAL "") + + # get status of Git repository + execute_process(COMMAND git status --porcelain + OUTPUT_VARIABLE GIT_STATUS + OUTPUT_STRIP_TRAILING_WHITESPACE) + + # check if Git repository is dirty + if(NOT GIT_STATUS STREQUAL "") + # the Git repository is dirty, thus extend the version information + set(GIT_VERSION "${GIT_VERSION}-modified") + + # print a message in Release build configuration to warn about the dirty repository + if(${VERSION_BUILD_TYPE} MATCHES "Release") + message(WARNING "This xloop Git repository is dirty! Please commit or revert all changes for a ${VERSION_BUILD_TYPE} build!") + endif(${VERSION_BUILD_TYPE} MATCHES "Release") + endif(NOT GIT_STATUS STREQUAL "") + endif(EXISTS ${VERSION_HEADER_FILE}) + + # return version to caller + set(${REPOSITORY_VERSION} ${GIT_VERSION}) +endmacro(get_repository_version) |