2022-07-14 00:12:27 -07:00
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# Handle generating version from Git.
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set(use_git_version 0)
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if(NVIM_VERSION_MEDIUM)
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message(STATUS "USING NVIM_VERSION_MEDIUM: ${NVIM_VERSION_MEDIUM}")
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return()
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endif()
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find_program(GIT_EXECUTABLE git)
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if(NOT GIT_EXECUTABLE)
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message(AUTHOR_WARNING "Skipping version-string generation (cannot find git)")
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2022-07-14 15:25:28 -07:00
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file(WRITE "${OUTPUT}" "")
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2022-07-14 00:12:27 -07:00
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return()
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endif()
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execute_process(
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COMMAND git describe --first-parent --tags --always --dirty
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OUTPUT_VARIABLE GIT_TAG
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ERROR_VARIABLE ERR
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RESULT_VARIABLE RES
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)
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if("${RES}" EQUAL 1)
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if(EXISTS ${OUTPUT})
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message(STATUS "Unable to extract version-string from git: keeping the last known version")
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else()
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# this will only be executed once since the file will get generated afterwards
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message(AUTHOR_WARNING "Git tag extraction failed with: " "${ERR}")
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file(WRITE "${OUTPUT}" "")
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endif()
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return()
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endif()
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string(STRIP "${GIT_TAG}" GIT_TAG)
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string(REGEX REPLACE "^v[0-9]+.[0-9]+.[0-9]+-" "" NVIM_VERSION_GIT "${GIT_TAG}")
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set(NVIM_VERSION_MEDIUM
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"v${NVIM_VERSION_MAJOR}.${NVIM_VERSION_MINOR}.${NVIM_VERSION_PATCH}-dev-${NVIM_VERSION_GIT}"
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)
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set(NVIM_VERSION_STRING "#define NVIM_VERSION_MEDIUM \"${NVIM_VERSION_MEDIUM}\"\n")
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string(SHA1 CURRENT_VERSION_HASH "${NVIM_VERSION_STRING}")
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if(EXISTS ${OUTPUT})
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file(SHA1 "${OUTPUT}" NVIM_VERSION_HASH)
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endif()
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if(NOT "${NVIM_VERSION_HASH}" STREQUAL "${CURRENT_VERSION_HASH}")
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message(STATUS "Updating NVIM_VERSION_MEDIUM: ${NVIM_VERSION_MEDIUM}")
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file(WRITE "${OUTPUT}" "${NVIM_VERSION_STRING}")
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endif()
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