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examples : add compiler version and target to build info (#2998)

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Cebtenzzre 2023-09-15 16:59:49 -04:00 • committed by GitHub
parent 3aefaab9e5
commit e6616cf0db
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21 changed files with 97 additions and 51 deletions
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42
scripts/build-info.cmake
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@ -2,6 +2,8 @@ set(TEMPLATE_FILE "${CMAKE_CURRENT_SOURCE_DIR}/scripts/build-info.h.in")
set(HEADER_FILE "${CMAKE_CURRENT_SOURCE_DIR}/build-info.h")
set(BUILD_NUMBER 0)
set(BUILD_COMMIT "unknown")
set(BUILD_COMPILER "unknown")
set(BUILD_TARGET "unknown")
# Look for git
find_package(Git)
@ -41,11 +43,45 @@ if(Git_FOUND)
endif()
endif()
if(GIT_HEAD_RESULT EQUAL 0 AND GIT_COUNT_RESULT EQUAL 0)
set(BUILD_COMMIT ${HEAD})
set(BUILD_NUMBER ${COUNT})
endif()
execute_process(
COMMAND sh -c "$@ --version | head -1" _ ${CMAKE_C_COMPILER}
OUTPUT_VARIABLE OUT
OUTPUT_STRIP_TRAILING_WHITESPACE
RESULT_VARIABLE RES
)
if (RES EQUAL 0)
set(BUILD_COMPILER ${OUT})
endif()
execute_process(
COMMAND ${CMAKE_C_COMPILER} -dumpmachine
OUTPUT_VARIABLE OUT
OUTPUT_STRIP_TRAILING_WHITESPACE
RESULT_VARIABLE RES
)
if (RES EQUAL 0)
set(BUILD_TARGET ${OUT})
endif()
# Only write the header if it's changed to prevent unnecessary recompilation
if(EXISTS ${HEADER_FILE})
file(STRINGS ${HEADER_FILE} CONTENTS REGEX "BUILD_COMMIT \"([^\"]*)\"")
list(GET CONTENTS 0 EXISTING)
if(NOT EXISTING STREQUAL "#define BUILD_COMMIT \"${BUILD_COMMIT}\"")
file(READ ${HEADER_FILE} CONTENTS)
string(REGEX MATCH "BUILD_COMMIT \"([^\"]*)\"" _ ${CONTENTS})
set(OLD_COMMIT ${CMAKE_MATCH_1})
string(REGEX MATCH "BUILD_COMPILER \"([^\"]*)\"" _ ${CONTENTS})
set(OLD_COMPILER ${CMAKE_MATCH_1})
string(REGEX MATCH "BUILD_TARGET \"([^\"]*)\"" _ ${CONTENTS})
set(OLD_TARGET ${CMAKE_MATCH_1})
if (
NOT OLD_COMMIT STREQUAL BUILD_COMMIT OR
NOT OLD_COMPILER STREQUAL BUILD_COMPILER OR
NOT OLD_TARGET STREQUAL BUILD_TARGET
)
configure_file(${TEMPLATE_FILE} ${HEADER_FILE})
endif()
else()