mirror of
https://codeberg.org/armin/justasample.git
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37 lines
1.1 KiB
CMake
37 lines
1.1 KiB
CMake
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if(NOT DEFINED REPO_DIR OR NOT DEFINED PATCH_FILE OR NOT DEFINED NAME)
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message(FATAL_ERROR "Missing variables: REPO_DIR PATCH_FILE NAME required")
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endif()
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execute_process(
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COMMAND git apply --reverse --check --ignore-whitespace -p0 "${PATCH_FILE}"
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WORKING_DIRECTORY "${REPO_DIR}"
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RESULT_VARIABLE reverse_result
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OUTPUT_QUIET ERROR_QUIET
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)
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if(reverse_result EQUAL 0)
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message(STATUS "${NAME}: patch already applied")
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return()
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endif()
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execute_process(
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COMMAND git apply --check --ignore-whitespace -p0 "${PATCH_FILE}"
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WORKING_DIRECTORY "${REPO_DIR}"
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RESULT_VARIABLE forward_result
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OUTPUT_QUIET ERROR_QUIET
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)
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if(forward_result EQUAL 0)
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message(STATUS "${NAME}: applying patch")
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execute_process(
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COMMAND git apply --ignore-whitespace -p0 "${PATCH_FILE}"
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WORKING_DIRECTORY "${REPO_DIR}"
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RESULT_VARIABLE apply_result
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)
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if(NOT apply_result EQUAL 0)
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message(FATAL_ERROR "${NAME}: patch failed while applying")
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endif()
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else()
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message(FATAL_ERROR "${NAME}: patch cannot be applied (source differs)")
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endif()
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