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cmake: Make Python 2 bytecode pre-compilation optional
This affects performance while preserving compatibility.
Ref: #1074
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CMakeLists.txt
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CMakeLists.txt
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option(DARLING_NO_CCACHE "Disable ccache usage" OFF)
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-
find_package(Python2 REQUIRED COMPONENTS Interpreter)
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find_program(CCACHE_PROGRAM ccache)
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if(CCACHE_PROGRAM AND NOT DARLING_NO_CCACHE)
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set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE "${CCACHE_PROGRAM}")
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option(ENABLE_TESTS "Install in-prefix unit tests" OFF)
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option(REGENERATE_SDK "Regenerate Header Files For Open Source SDK" OFF)
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option(ADDITIONAL_PACKAGES "Include additional pacakges not included by default in a standard macOS installation" OFF)
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set(COMPILE_PY2_BYTECODE AUTO CACHE STRING "Pre-compile bytecode for Python 2 packages")
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set_property(CACHE COMPILE_PY2_BYTECODE PROPERTY STRINGS AUTO ON OFF)
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string(TOLOWER "${COMPILE_PY2_BYTECODE}" COMPILE_PY2_BYTECODE)
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if (COMPILE_PY2_BYTECODE STREQUAL "auto")
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find_package(Python2 QUIET COMPONENTS Interpreter)
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if (Python2_Interpreter_FOUND)
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set(COMPILE_PY2_BYTECODE ON)
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message("Found Python 2; enabling pre-compilation of Python bytecode")
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else()
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set(COMPILE_PY2_BYTECODE OFF)
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message("Python 2 not available; bytecode compilation is disabled")
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endif (Python2_Interpreter_FOUND)
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endif (COMPILE_PY2_BYTECODE STREQUAL "auto")
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if (COMPILE_PY2_BYTECODE)
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find_package(Python2 REQUIRED COMPONENTS Interpreter)
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endif (COMPILE_PY2_BYTECODE)
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set(ENABLE_METAL AUTO CACHE STRING "Build Darling with Metal support")
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set_property(CACHE ENABLE_METAL PROPERTY STRINGS AUTO ON OFF)
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cmake/pyc.cmake
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cmake/pyc.cmake
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cmake_parse_arguments(PYC "" "DESTINATION" "SOURCES" ${ARGN})
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set(generated_files "")
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if (COMPILE_PY2_BYTECODE)
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foreach(pyfile ${PYC_SOURCES})
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STRING(REGEX REPLACE "^${CMAKE_CURRENT_SOURCE_DIR}" "" pyfile_rel ${pyfile})
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···
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endforeach(pyfile)
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add_custom_target("${target_name}" ALL DEPENDS ${generated_files})
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endif (COMPILE_PY2_BYTECODE)
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endfunction(pyc)
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