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046a4e6048
If Git is not found, revert to just dumping the label into the code. (We currently have no way of getting the SHA into the tarball).
52 lines
1.9 KiB
CMake
52 lines
1.9 KiB
CMake
# - Write version information into the source code
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#
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# Add an unconditional target to the Makefile which checks the current
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# SHA of the source directory and write to a header file if and *only*
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# if this has changed (thus we avoid unnecessary rebuilds). By having
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# this in the Makefile, we get updated version information even though
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# we haven't done any reconfiguring.
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#
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# The time it takes to probe the VCS for this information and write it
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# to the miniature file in negligable.
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#
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# If the build type is Debug, then we only write a static version
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# information as it gets tiresome to rebuild the project everytime one
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# makes changes to any of the unit tests.
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string (TOUPPER "${CMAKE_BUILD_TYPE}" cmake_build_type_upper_)
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if (cmake_build_type_upper_ MATCHES DEBUG)
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file (WRITE "${PROJECT_BINARY_DIR}/project-version.h"
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"#define PROJECT_VERSION \"${${project}_LABEL} (debug)\"\n"
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)
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else ()
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if (NOT GIT_FOUND)
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find_package (Git)
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endif ()
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# if git is *still* not found means it is not present on the
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# system, so there is "no" way we can update the SHA. notice
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# that this is a slightly different version of the label than
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# above.
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if (NOT GIT_FOUND)
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file (WRITE "${PROJECT_BINARY_DIR}/project-version.h"
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"#define PROJECT_VERSION \"${${project}_LABEL}\"\n"
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)
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else ()
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add_custom_target (update-version ALL
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COMMAND ${CMAKE_COMMAND}
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-DCMAKE_HOME_DIRECTORY=${CMAKE_HOME_DIRECTORY}
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-DGIT_EXECUTABLE=${GIT_EXECUTABLE}
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-DPROJECT_SOURCE_DIR=${PROJECT_SOURCE_DIR}
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-DPROJECT_BINARY_DIR=${PROJECT_BINARY_DIR}
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-DPROJECT_LABEL=${${project}_LABEL}
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-P ${PROJECT_SOURCE_DIR}/cmake/Scripts/WriteVerSHA.cmake
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COMMENT "Updating version information"
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)
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# the target above gets built every time thanks to the "ALL" modifier,
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# but it must also be done before the main library so it can pick up
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# any changes it does.
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add_dependencies (${${project}_TARGET} update-version)
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endif ()
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endif ()
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