Outputs where all amounts are known spent can now be pruned

Only for pre rct for obvious reasons.

Note: DO NOT use a known spent list which includes outputs
which are not known spent. If the list includes any output
that's just strongly thought to be spent, but not provably
so, you risk finding yourself unable to sync past the point
where that output is spent.

I estimate only 200 MB saved on current mainnet though,
unless the new blackballing rule unearths a good amount of
large-amount-set extra spent outs.

1 files changed, 33 insertions, 0 deletions

diff --git a/src/blockchain_utilities/CMakeLists.txt b/src/blockchain_utilities/CMakeLists.txt
index c9ad1cebe..ddf575c29 100644
--- a/src/blockchain_utilities/CMakeLists.txt
+++ b/src/blockchain_utilities/CMakeLists.txt
@@ -81,6 +81,17 @@ monero_private_headers(blockchain_usage
 
 
 
+set(blockchain_prune_known_spent_data_sources
+  blockchain_prune_known_spent_data.cpp
+  )
+
+set(blockchain_prune_known_spent_data_private_headers)
+
+monero_private_headers(blockchain_prune_known_spent_data
+	  ${blockchain_prune_known_spent_data_private_headers})
+
+
+
 set(blockchain_ancestry_sources
   blockchain_ancestry.cpp
   )
@@ -265,3 +276,25 @@ set_property(TARGET blockchain_stats
 	PROPERTY
 	OUTPUT_NAME "monero-blockchain-stats")
 install(TARGETS blockchain_stats DESTINATION bin)
+
+monero_add_executable(blockchain_prune_known_spent_data
+  ${blockchain_prune_known_spent_data_sources}
+  ${blockchain_prune_known_spent_data_private_headers})
+
+target_link_libraries(blockchain_prune_known_spent_data
+  PRIVATE
+    cryptonote_core
+    blockchain_db
+    p2p
+    version
+    epee
+    ${Boost_FILESYSTEM_LIBRARY}
+    ${Boost_SYSTEM_LIBRARY}
+    ${Boost_THREAD_LIBRARY}
+    ${CMAKE_THREAD_LIBS_INIT}
+    ${EXTRA_LIBRARIES})
+
+set_property(TARGET blockchain_prune_known_spent_data
+	PROPERTY
+	OUTPUT_NAME "monero-blockchain-prune-known-spent-data")
+install(TARGETS blockchain_prune_known_spent_data DESTINATION bin)