wehub-resource-sync
71 lines
2.7 KiB
CMake
71 lines
2.7 KiB
CMake
# cmake/InstantiationCache.cmake
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# Smart caching for instantiation analysis
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function(should_process_file SOURCE_FILE SAFE_NAME OUT_VAR)
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# Get file modification time
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file(TIMESTAMP ${SOURCE_FILE} source_mtime)
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# Check if cached results exist
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set(cache_file "${INST_TEMP_DIR}/${SAFE_NAME}.cache")
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if(EXISTS ${cache_file})
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# Read cache timestamp
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file(READ ${cache_file} cache_content LIMIT 100)
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string(REGEX MATCH "timestamp:([0-9]+)" _ ${cache_content})
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set(cache_time ${CMAKE_MATCH_1})
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# Compare timestamps
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if(cache_time AND source_mtime EQUAL cache_time)
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# Cache is valid, skip processing
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set(${OUT_VAR} FALSE PARENT_SCOPE)
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# Load cached results
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if(EXISTS ${INST_USED_DIR}/${SAFE_NAME}.used.cached)
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file(COPY ${INST_USED_DIR}/${SAFE_NAME}.used.cached
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DESTINATION ${INST_USED_DIR}
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FILE_PERMISSIONS OWNER_READ OWNER_WRITE)
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file(RENAME ${INST_USED_DIR}/${SAFE_NAME}.used.cached
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${INST_USED_DIR}/${SAFE_NAME}.used)
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endif()
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if(EXISTS ${INST_PROVIDED_DIR}/${SAFE_NAME}.provided.cached)
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file(COPY ${INST_PROVIDED_DIR}/${SAFE_NAME}.provided.cached
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DESTINATION ${INST_PROVIDED_DIR}
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FILE_PERMISSIONS OWNER_READ OWNER_WRITE)
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file(RENAME ${INST_PROVIDED_DIR}/${SAFE_NAME}.provided.cached
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${INST_PROVIDED_DIR}/${SAFE_NAME}.provided)
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endif()
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return()
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endif()
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endif()
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# Need to process this file
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set(${OUT_VAR} TRUE PARENT_SCOPE)
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endfunction()
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function(cache_analysis_results SOURCE_FILE SAFE_NAME)
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file(TIMESTAMP ${SOURCE_FILE} source_mtime)
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# Write cache marker
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set(cache_file "${INST_TEMP_DIR}/${SAFE_NAME}.cache")
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file(WRITE ${cache_file} "timestamp:${source_mtime}\n")
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# Cache the analysis results
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if(EXISTS ${INST_USED_DIR}/${SAFE_NAME}.used)
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file(COPY ${INST_USED_DIR}/${SAFE_NAME}.used
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DESTINATION ${INST_USED_DIR}
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FILE_PERMISSIONS OWNER_READ OWNER_WRITE)
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file(RENAME ${INST_USED_DIR}/${SAFE_NAME}.used
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${INST_USED_DIR}/${SAFE_NAME}.used.cached)
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endif()
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if(EXISTS ${INST_PROVIDED_DIR}/${SAFE_NAME}.provided)
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file(COPY ${INST_PROVIDED_DIR}/${SAFE_NAME}.provided
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DESTINATION ${INST_PROVIDED_DIR}
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FILE_PERMISSIONS OWNER_READ OWNER_WRITE)
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file(RENAME ${INST_PROVIDED_DIR}/${SAFE_NAME}.provided
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${INST_PROVIDED_DIR}/${SAFE_NAME}.provided.cached)
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endif()
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endfunction()
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