mirror-chatterino2/cmake/GIT.cmake

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CMake
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# This script will set the following variables:
# GIT_HASH
# If the git binary is found and the git work tree is intact, GIT_HASH is worked out using the `git rev-parse --short HEAD` command
# The value of GIT_HASH can be overriden by defining the GIT_HASH environment variable
# GIT_COMMIT
# If the git binary is found and the git work tree is intact, GIT_COMMIT is worked out using the `git rev-parse HEAD` command
# The value of GIT_COMMIT can be overriden by defining the GIT_COMMIT environment variable
# GIT_RELEASE
# If the git binary is found and the git work tree is intact, GIT_RELEASE is worked out using the `git describe` command
# The value of GIT_RELEASE can be overriden by defining the GIT_RELEASE environment variable
find_package(Git)
set(GIT_HASH "GIT-REPOSITORY-NOT-FOUND")
set(GIT_COMMIT "GIT-REPOSITORY-NOT-FOUND")
set(GIT_RELEASE "${PROJECT_VERSION}")
if (GIT_EXECUTABLE)
execute_process(
COMMAND ${GIT_EXECUTABLE} rev-parse --is-inside-work-tree
WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
RESULT_VARIABLE GIT_REPOSITORY_NOT_FOUND
ERROR_QUIET
)
if (GIT_REPOSITORY_NOT_FOUND)
set(GIT_REPOSITORY_FOUND 0)
else ()
set(GIT_REPOSITORY_FOUND 1)
endif()
if (GIT_REPOSITORY_FOUND)
execute_process(
COMMAND ${GIT_EXECUTABLE} rev-parse --short HEAD
WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
OUTPUT_VARIABLE GIT_HASH
OUTPUT_STRIP_TRAILING_WHITESPACE
)
execute_process(
COMMAND ${GIT_EXECUTABLE} rev-parse HEAD
WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
OUTPUT_VARIABLE GIT_COMMIT
OUTPUT_STRIP_TRAILING_WHITESPACE
)
execute_process(
COMMAND ${GIT_EXECUTABLE} describe
WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
OUTPUT_VARIABLE GIT_RELEASE
OUTPUT_STRIP_TRAILING_WHITESPACE
)
endif (GIT_REPOSITORY_FOUND)
endif (GIT_EXECUTABLE)
if (DEFINED ENV{GIT_HASH})
set(GIT_HASH "$ENV{GIT_HASH}")
endif ()
if (DEFINED ENV{GIT_COMMIT})
set(GIT_COMMIT "$ENV{GIT_COMMIT}")
endif ()
if (DEFINED ENV{GIT_RELEASE})
set(GIT_RELEASE "$ENV{GIT_RELEASE}")
endif ()
message(STATUS "Injected git values: ${GIT_COMMIT} (${GIT_RELEASE}) ${GIT_HASH}")