[Config] Ignore prune mode if txindex is set

src/init.cpp

@@ -1,7 +1,7 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
 // Copyright (c) 2009-2019 The Bitcoin Core developers
 // Copyright (c) 2015-2019 The PIVX developers
-// Copyright (c) 2018-2019 The Veil developers
+// Copyright (c) 2018-2020 The Veil developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -1000,7 +1000,7 @@ bool AppInitParameterInteraction()
     // if using block pruning, then disallow txindex
     if (gArgs.GetArg("-prune", 0)) {
         if (gArgs.GetBoolArg("-txindex", DEFAULT_TXINDEX))
-            return InitError(_("Prune mode is incompatible with -txindex."));
+            InitWarning(_("Ignoring Prune Mode: Incompatible with -txindex."));
     }
 
     // -bind and -whitebind can't be set when not listening
@@ -1123,6 +1123,10 @@ bool AppInitParameterInteraction()
     if (nPruneArg < 0) {
         return InitError(_("Prune cannot be configured with a negative value."));
     }
+    if (nPruneArg && gArgs.GetBoolArg("-txindex", DEFAULT_TXINDEX)) {
+        // We already warned them that it's getting ignored
+        nPruneArg = 0;
+    }
     nPruneTarget = (uint64_t) nPruneArg * 1024 * 1024;
     if (nPruneArg == 1) {  // manual pruning: -prune=1
         LogPrintf("Block pruning enabled.  Use RPC call pruneblockchain(height) to manually prune block and undo files.\n");