[fix] decoupling librocksdb.a

Author: warrick1016

deps/Makefile

@@ -161,32 +161,39 @@ ROCKSDB_BUILD_FOLLY_FLAGS=ROCKSDB_DISABLE_BZIP=1 ROCKSDB_DISABLE_LZ4=1 ROCKSDB_D
 ROCKSDB_BUILD_FLAGS=USE_COROUTINES=1 USE_FOLLY=1 $(ROCKSDB_BUILD_FOLLY_FLAGS) 
 
 ./rocksdb/_build_folly/folly/lib/libfolly.a:
-	if [ ! -f rocksdb/_build_folly/installed/folly/lib/libfolly.a ]; then \
+	@if [ ! -f rocksdb/_build_folly/installed/folly/lib/libfolly.a ]; then \
+		echo "Building folly for the first time..."; \
 		cd rocksdb && ${ROCKSDB_BUILD_FOLLY_FLAGS} ${MAKE} checkout_folly && ${ROCKSDB_BUILD_FOLLY_FLAGS} ${MAKE} build_folly; \
 	fi
-	rm -rf ./rocksdb/_build_folly/libs
-	mkdir -p ./rocksdb/_build_folly/libs
-	FBUILD_PATH=`ls -d ./rocksdb/_build_folly*`; \
-	BOOST_PATH=`ls -d $${FBUILD_PATH}/installed/boost*`; \
-	DBL_CONV_PATH=`ls -d $${FBUILD_PATH}/installed/double-conversion*`; \
-	FMT_PATH=`ls -d $${FBUILD_PATH}/installed/fmt*`; \
-	GLOG_PATH=`ls -d $${FBUILD_PATH}/installed/glog*`; \
-	GFLAGS_PATH=`ls -d $${FBUILD_PATH}/installed/gflags*`; \
-	LIBEVENT_PATH=`ls -d $${FBUILD_PATH}/installed/libevent*`; \
-	GLOG_LIB_PATH=`ls -d $${GLOG_PATH}/lib*`; \
-	FMT_LIB_PATH=`ls -d $${FMT_PATH}/lib*`; \
-	cp -r $${BOOST_PATH} ./rocksdb/_build_folly/libs/boost; \
-	cp -r $${DBL_CONV_PATH} ./rocksdb/_build_folly/libs/double-conversion; \
-	mkdir -p ./rocksdb/_build_folly/libs/fmt; \
-	cp -r $${FMT_PATH}/include ./rocksdb/_build_folly/libs/fmt/include; \
-	cp -r $${FMT_LIB_PATH} ./rocksdb/_build_folly/libs/fmt/lib; \
-	mkdir -p ./rocksdb/_build_folly/libs/glog; \
-	cp -r $${GLOG_PATH}/include ./rocksdb/_build_folly/libs/glog/include; \
-	cp -r $${GLOG_LIB_PATH} ./rocksdb/_build_folly/libs/glog/lib; \
-	mkdir -p ./rocksdb/_build_folly/libs/libiberty; \
-	cp -r $${GFLAGS_PATH} ./rocksdb/_build_folly/libs/gflags; \
-	cp -r $${LIBEVENT_PATH} ./rocksdb/_build_folly/libs/libevent; \
-	cp -r $${FBUILD_PATH}/installed/folly ./rocksdb/_build_folly/libs/folly
+	@if [ ! -f ./rocksdb/_build_folly/libs/folly/lib/libfolly.a ]; then \
+		echo "Copying libraries from installed to libs directory..."; \
+		rm -rf ./rocksdb/_build_folly/libs; \
+		mkdir -p ./rocksdb/_build_folly/libs; \
+		FBUILD_PATH=`ls -d ./rocksdb/_build_folly*`; \
+		BOOST_PATH=`ls -d $${FBUILD_PATH}/installed/boost*`; \
+		DBL_CONV_PATH=`ls -d $${FBUILD_PATH}/installed/double-conversion*`; \
+		FMT_PATH=`ls -d $${FBUILD_PATH}/installed/fmt*`; \
+		GLOG_PATH=`ls -d $${FBUILD_PATH}/installed/glog*`; \
+		GFLAGS_PATH=`ls -d $${FBUILD_PATH}/installed/gflags*`; \
+		LIBEVENT_PATH=`ls -d $${FBUILD_PATH}/installed/libevent*`; \
+		GLOG_LIB_PATH=`ls -d $${GLOG_PATH}/lib*`; \
+		FMT_LIB_PATH=`ls -d $${FMT_PATH}/lib*`; \
+		cp -r $${BOOST_PATH} ./rocksdb/_build_folly/libs/boost; \
+		cp -r $${DBL_CONV_PATH} ./rocksdb/_build_folly/libs/double-conversion; \
+		mkdir -p ./rocksdb/_build_folly/libs/fmt; \
+		cp -r $${FMT_PATH}/include ./rocksdb/_build_folly/libs/fmt/include; \
+		cp -r $${FMT_LIB_PATH} ./rocksdb/_build_folly/libs/fmt/lib; \
+		mkdir -p ./rocksdb/_build_folly/libs/glog; \
+		cp -r $${GLOG_PATH}/include ./rocksdb/_build_folly/libs/glog/include; \
+		cp -r $${GLOG_LIB_PATH} ./rocksdb/_build_folly/libs/glog/lib; \
+		mkdir -p ./rocksdb/_build_folly/libs/libiberty; \
+		cp -r $${GFLAGS_PATH} ./rocksdb/_build_folly/libs/gflags; \
+		cp -r $${LIBEVENT_PATH} ./rocksdb/_build_folly/libs/libevent; \
+		cp -r $${FBUILD_PATH}/installed/folly ./rocksdb/_build_folly/libs/folly; \
+		echo "Libraries copied successfully."; \
+	else \
+		echo "libs directory already exists, skipping copy to preserve timestamps."; \
+	fi
 
 
 

src/Makefile

@@ -468,8 +468,13 @@ persist-settings:
 # They were originally designed to trigger rebuilds when CFLAGS/LDFLAGS changed
 
 # Build link dependencies separately
+ifdef SWAP
+.make-link-prerequisites: .make-compile-prerequisites ../deps/rocksdb/librocksdb.a
+	@touch $@
+else
 .make-link-prerequisites: .make-compile-prerequisites
 	@touch $@
+endif
 
 # Build rocksdb independently to support caching
 ../deps/rocksdb/librocksdb.a: