Add -stopat CLI arg so we can pause a full node and call getsnapshot/gettxoutsetinfo at a certain block height

src/main.cpp

@@ -213,7 +213,7 @@ namespace {
 } // anon namespace
 
 char ASSETCHAINS_SYMBOL[65] = { "HUSH" };
-uint32_t HUSH_STOPAT = GetArg("-stopat",0);
+uint32_t HUSH_STOPAT = 0;
 #include "komodo_validation011.h"
 
 //////////////////////////////////////////////////////////////////////////////
@@ -2216,8 +2216,10 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin
 {
     const CChainParams& chainparams = Params();
     AssertLockHeld(cs_main);
-
-    if ( HUSH_STOPAT != 0 && pindex->nHeight > HUSH_STOPAT ) {
+    HUSH_STOPAT = GetArg("-stopat",0);
+    if (HUSH_STOPAT)
+        printf("Going to stopat=%d\n", HUSH_STOPAT);
+    if (HUSH_STOPAT != 0 && pindex->nHeight > HUSH_STOPAT) {
         printf("Stopping at block height %d\n", HUSH_STOPAT);
         return(false);
     }