Add block height to block notification substitution options (#1430)

1 files changed, 3 insertions, 1 deletions

diff --git a/src/init.cpp b/src/init.cpp
index c4b446c52..31f3576b6 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -58,6 +58,7 @@
 #include <boost/filesystem.hpp>
 #include <boost/function.hpp>
 #include <boost/interprocess/sync/file_lock.hpp>
+#include <boost/lexical_cast.hpp>
 #include <boost/thread.hpp>
 #include <openssl/crypto.h>
 
@@ -325,7 +326,7 @@ std::string HelpMessage(HelpMessageMode mode)
     strUsage += HelpMessageOpt("-?", _("Print this help message and exit"));
     strUsage += HelpMessageOpt("-version", _("Print version and exit"));
     strUsage += HelpMessageOpt("-alertnotify=<cmd>", _("Execute command when a relevant alert is received or we see a really long fork (%s in cmd is replaced by message)"));
-    strUsage += HelpMessageOpt("-blocknotify=<cmd>", _("Execute command when the best block changes (%s in cmd is replaced by block hash)"));
+    strUsage += HelpMessageOpt("-blocknotify=<cmd>", _("Execute command when the best block changes (%s in cmd is replaced by block hash, %i is replaced by block number)"));
     if (showDebug)
         strUsage += HelpMessageOpt("-blocksonly", strprintf(_("Whether to operate in a blocks only mode (default: %u)"), DEFAULT_BLOCKSONLY));
     strUsage +=HelpMessageOpt("-assumevalid=<hex>", strprintf(_("If this block is in the chain assume that it and its ancestors are valid and potentially skip their script verification (0 to verify all, default: %s, testnet: %s)"), Params(CBaseChainParams::MAIN).GetConsensus(0).defaultAssumeValid.GetHex(), Params(CBaseChainParams::TESTNET).GetConsensus(0).defaultAssumeValid.GetHex()));
@@ -535,6 +536,7 @@ static void BlockNotifyCallback(bool initialSync, const CBlockIndex *pBlockIndex
     std::string strCmd = GetArg("-blocknotify", "");
 
     boost::replace_all(strCmd, "%s", pBlockIndex->GetBlockHash().GetHex());
+    boost::replace_all(strCmd, "%i", boost::lexical_cast<std::string>(pBlockIndex->nHeight));
     boost::thread t(runCommand, strCmd); // thread runs free
 }