58 lines
2.0 KiB
CMake
58 lines
2.0 KiB
CMake
# btversion.cmake -- generate btversion.h from git at BUILD time.
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#
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# Version scheme (2026-07-18): the arcade release is 4.10; the win32
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# reconstruction is 4.11; the BUILD number is the git commit count --
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# monotonic, zero-maintenance, and any build pins to exact source via the
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# hash. A '+' suffix marks an uncommitted working tree.
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#
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# Invoked: cmake -DOUT=<header> -DSRC=<repo root> -P btversion.cmake
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execute_process(COMMAND git rev-list --count HEAD
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WORKING_DIRECTORY "${SRC}"
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OUTPUT_VARIABLE BT_BUILD OUTPUT_STRIP_TRAILING_WHITESPACE
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ERROR_QUIET)
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execute_process(COMMAND git rev-parse --short HEAD
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WORKING_DIRECTORY "${SRC}"
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OUTPUT_VARIABLE BT_HASH OUTPUT_STRIP_TRAILING_WHITESPACE
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ERROR_QUIET)
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# content/LAST.EGG is rewritten by the game every run and content/OPERATOR.EGG
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# is overwritten by the operator app on Save -- both are runtime working files,
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# not source, so exclude them (else the build stamps a false '+' dirty marker).
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execute_process(COMMAND git status --porcelain --untracked-files=no
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-- . ":(exclude)content/LAST.EGG"
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":(exclude)content/OPERATOR.EGG"
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WORKING_DIRECTORY "${SRC}"
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OUTPUT_VARIABLE BT_DIRTY_RAW
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ERROR_QUIET)
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if(NOT BT_BUILD)
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set(BT_BUILD 0)
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endif()
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if(NOT BT_HASH)
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set(BT_HASH "nogit")
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endif()
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if(BT_DIRTY_RAW STREQUAL "")
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set(BT_DIRTY "")
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else()
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set(BT_DIRTY "+")
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endif()
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set(CONTENT "// generated by tools/btversion.cmake -- do not edit, not in git
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#define BT_VERSION_MAJOR 4
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#define BT_VERSION_MINOR 11
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#define BT_VERSION_BUILD ${BT_BUILD}
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#define BT_VERSION_STRING \"4.11.${BT_BUILD}\"
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#define BT_VERSION_HASH \"${BT_HASH}${BT_DIRTY}\"
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#define BT_VERSION_FULL \"4.11.${BT_BUILD} (${BT_HASH}${BT_DIRTY})\"
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")
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# write only when changed so incremental builds don't churn
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if(EXISTS "${OUT}")
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file(READ "${OUT}" OLD)
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else()
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set(OLD "")
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endif()
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if(NOT OLD STREQUAL CONTENT)
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file(WRITE "${OUT}" "${CONTENT}")
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endif()
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