fundingmanager: log raw transaction on braodcast

fundingmanager.go

@@ -552,13 +552,33 @@ func (f *fundingManager) start() error {
 			if chanType.IsSingleFunder() && chanType.HasFundingTx() &&
 				channel.IsInitiator {
 
-				err := f.cfg.PublishTransaction(
+				var fundingTxBuf bytes.Buffer
+				err := channel.FundingTxn.Serialize(&fundingTxBuf)
+				if err != nil {
+					fndgLog.Errorf("Unable to serialize "+
+						"funding transaction %v: %v",
+						channel.FundingTxn.TxHash(), err)
+
+					// Clear the buffer of any bytes that
+					// were written before the serialization
+					// error to prevent logging an
+					// incomplete transaction.
+					fundingTxBuf.Reset()
+				}
+
+				fndgLog.Debugf("Rebroadcasting funding tx for "+
+					"ChannelPoint(%v): %x",
+					channel.FundingOutpoint,
+					fundingTxBuf.Bytes())
+
+				err = f.cfg.PublishTransaction(
 					channel.FundingTxn, "",
 				)
 				if err != nil {
 					fndgLog.Errorf("Unable to rebroadcast "+
-						"funding tx for "+
+						"funding tx %x for "+
 						"ChannelPoint(%v): %v",
+						fundingTxBuf.Bytes(),
 						channel.FundingOutpoint, err)
 				}
 			}
@@ -1991,14 +2011,24 @@ func (f *fundingManager) handleFundingSigned(fmsg *fundingSignedMsg) {
 	// if we actually have the funding transaction.
 	if completeChan.ChanType.HasFundingTx() {
 		fundingTx := completeChan.FundingTxn
+		var fundingTxBuf bytes.Buffer
+		if err := fundingTx.Serialize(&fundingTxBuf); err != nil {
+			fndgLog.Errorf("Unable to serialize funding "+
+				"transaction %v: %v", fundingTx.TxHash(), err)
 
-		fndgLog.Infof("Broadcasting funding tx for ChannelPoint(%v): %v",
+			// Clear the buffer of any bytes that were written
-			completeChan.FundingOutpoint, spew.Sdump(fundingTx))
+			// before the serialization error to prevent logging an
+			// incomplete transaction.
+			fundingTxBuf.Reset()
+		}
+
+		fndgLog.Infof("Broadcasting funding tx for ChannelPoint(%v): %x",
+			completeChan.FundingOutpoint, fundingTxBuf.Bytes())
 
 		err = f.cfg.PublishTransaction(fundingTx, "")
 		if err != nil {
-			fndgLog.Errorf("Unable to broadcast funding tx for "+
+			fndgLog.Errorf("Unable to broadcast funding tx %x for "+
-				"ChannelPoint(%v): %v",
+				"ChannelPoint(%v): %v", fundingTxBuf.Bytes(),
 				completeChan.FundingOutpoint, err)
 
 			// We failed to broadcast the funding transaction, but