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fix make all being slow #2553

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Aug 23, 2023
Merged

fix make all being slow #2553

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20 changes: 4 additions & 16 deletions Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -411,26 +411,14 @@ include prebuilds.mk
-include $(filter %.d,$(HVLOGOBJS:%.o=%.d))


# 'make all' calculates the current checksum of all .h and .hpp files, storing them in a file. Then it decides whether to run 'make clean' or 'make standard' based on whether any .h and .hpp files have been altered
# 'make all' calculates the current checksum of all .h and .hpp files, storing the checksum in a file. Then it decides whether to run 'make clean' or 'make standard' based on whether any .h and .hpp files have been altered
HEADER_CHECKSUM_FILE=.header_checksum
all:
@if [ ! -f $(HEADER_CHECKSUM_FILE) ]; then \
echo "No previous .header_checksum file found."; \
find ./src/ -type f \( -name "*.h" -o -name "*.hpp" \) -exec sha256sum {} \; | sort > $(HEADER_CHECKSUM_FILE); \
@current_checksum=$$(find ./src/ -type f \( -name "*.h" -o -name "*.hpp" \) -print0 | sort -z | xargs -0 md5sum | md5sum | awk '{print $$1}'); \
if [ ! -f $(HEADER_CHECKSUM_FILE) ] || [ "$$(cat $(HEADER_CHECKSUM_FILE))" != "$$current_checksum" ]; then \
$(MAKE) clean; \
else \
find ./src/ -type f \( -name "*.h" -o -name "*.hpp" \) -exec sha256sum {} \; | sort > .current_checksums; \
changed_files=$$(comm -23 .current_checksums $(HEADER_CHECKSUM_FILE) | awk '{print $$2}'); \
if [ ! -z "$$changed_files" ]; then \
echo "Changed header files:"; \
echo "\033[1;37m$$changed_files\033[0m"; \
$(MAKE) clean; \
else \
echo "No header files have been changed."; \
fi; \
mv .current_checksums $(HEADER_CHECKSUM_FILE); \
fi; \
$(MAKE) standard;
$(MAKE) standard && echo "$$current_checksum" > $(HEADER_CHECKSUM_FILE)

standard: CXXFLAGS += $(STLOGFLAGS)
standard: CFLAGS += $(STLOGFLAGS)
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