multi: fix fmt.Errorf error wrapping

Refactor fmt.Errorf usage to correctly wrap errors instead of using
non-wrapping format verbs.

chainntnfs/bitcoindnotify/bitcoind.go

@@ -636,7 +636,7 @@ func (b *BitcoindNotifier) handleBlockConnected(block chainntnfs.BlockEpoch) err
 	// clients.
 	rawBlock, err := b.GetBlock(block.Hash)
 	if err != nil {
-		return fmt.Errorf("unable to get block: %v", err)
+		return fmt.Errorf("unable to get block: %w", err)
 	}
 	utilBlock := btcutil.NewBlock(rawBlock)
 
@@ -645,7 +645,7 @@ func (b *BitcoindNotifier) handleBlockConnected(block chainntnfs.BlockEpoch) err
 	// us.
 	err = b.txNotifier.ConnectTip(utilBlock, uint32(block.Height))
 	if err != nil {
-		return fmt.Errorf("unable to connect tip: %v", err)
+		return fmt.Errorf("unable to connect tip: %w", err)
 	}
 
 	chainntnfs.Log.Infof("New block: height=%v, sha=%v", block.Height,
@@ -719,7 +719,8 @@ func (b *BitcoindNotifier) RegisterSpendNtfn(outpoint *wire.OutPoint,
 			pkScript, b.chainParams,
 		)
 		if err != nil {
-			return nil, fmt.Errorf("unable to parse script: %v", err)
+			return nil, fmt.Errorf("unable to parse script: %w",
+				err)
 		}
 		if err := b.chainConn.NotifyReceived(addrs); err != nil {
 			return nil, err

chainntnfs/btcdnotify/btcd.go

@@ -692,7 +692,7 @@ func (b *BtcdNotifier) handleBlockConnected(epoch chainntnfs.BlockEpoch) error {
 	// clients.
 	rawBlock, err := b.GetBlock(epoch.Hash)
 	if err != nil {
-		return fmt.Errorf("unable to get block: %v", err)
+		return fmt.Errorf("unable to get block: %w", err)
 	}
 	newBlock := &filteredBlock{
 		hash:    *epoch.Hash,
@@ -706,7 +706,7 @@ func (b *BtcdNotifier) handleBlockConnected(epoch chainntnfs.BlockEpoch) error {
 	// us.
 	err = b.txNotifier.ConnectTip(newBlock.block, newBlock.height)
 	if err != nil {
-		return fmt.Errorf("unable to connect tip: %v", err)
+		return fmt.Errorf("unable to connect tip: %w", err)
 	}
 
 	chainntnfs.Log.Infof("New block: height=%v, sha=%v", epoch.Height,
@@ -785,7 +785,8 @@ func (b *BtcdNotifier) RegisterSpendNtfn(outpoint *wire.OutPoint,
 			pkScript, b.chainParams,
 		)
 		if err != nil {
-			return nil, fmt.Errorf("unable to parse script: %v", err)
+			return nil, fmt.Errorf("unable to parse script: %w",
+				err)
 		}
 		if err := b.chainConn.NotifyReceived(addrs); err != nil {
 			return nil, err
@@ -823,7 +824,8 @@ func (b *BtcdNotifier) RegisterSpendNtfn(outpoint *wire.OutPoint,
 			pkScript, b.chainParams,
 		)
 		if err != nil {
-			return nil, fmt.Errorf("unable to parse address: %v", err)
+			return nil, fmt.Errorf("unable to parse address: %w",
+				err)
 		}
 
 		asyncResult := b.chainConn.RescanAsync(startHash, addrs, nil)

chainntnfs/interface.go

@@ -541,7 +541,7 @@ func GetClientMissedBlocks(chainConn ChainConn, clientBestBlock *BlockEpoch,
 		chainConn, startingHeight+1, notifierBestHeight+1,
 	)
 	if err != nil {
-		return nil, fmt.Errorf("unable to get missed blocks: %v", err)
+		return nil, fmt.Errorf("unable to get missed blocks: %w", err)
 	}
 
 	return missedBlocks, nil

chainntnfs/neutrinonotify/neutrino.go

@@ -609,7 +609,8 @@ func (n *NeutrinoNotifier) historicalConfDetails(confRequest chainntnfs.ConfRequ
 		key := builder.DeriveKey(blockHash)
 		match, err := regFilter.Match(key, confRequest.PkScript.Script())
 		if err != nil {
-			return nil, fmt.Errorf("unable to query filter: %v", err)
+			return nil, fmt.Errorf("unable to query filter: %w",
+				err)
 		}
 
 		// If there's no match, then we can continue forward to the
@@ -623,7 +624,8 @@ func (n *NeutrinoNotifier) historicalConfDetails(confRequest chainntnfs.ConfRequ
 		// to send the proper response.
 		block, err := n.GetBlock(*blockHash)
 		if err != nil {
-			return nil, fmt.Errorf("unable to get block from network: %v", err)
+			return nil, fmt.Errorf("unable to get block from "+
+				"network: %w", err)
 		}
 
 		// For every transaction in the block, check which one matches
@@ -663,11 +665,11 @@ func (n *NeutrinoNotifier) handleBlockConnected(newBlock *filteredBlock) error {
 	// result in the items we care about being dispatched.
 	rawBlock, err := n.GetBlock(newBlock.hash)
 	if err != nil {
-		return fmt.Errorf("unable to get full block: %v", err)
+		return fmt.Errorf("unable to get full block: %w", err)
 	}
 	err = n.txNotifier.ConnectTip(rawBlock, newBlock.height)
 	if err != nil {
-		return fmt.Errorf("unable to connect tip: %v", err)
+		return fmt.Errorf("unable to connect tip: %w", err)
 	}
 
 	chainntnfs.Log.Infof("New block: height=%v, sha=%v", newBlock.height,
@@ -692,7 +694,7 @@ func (n *NeutrinoNotifier) handleBlockConnected(newBlock *filteredBlock) error {
 func (n *NeutrinoNotifier) getFilteredBlock(epoch chainntnfs.BlockEpoch) (*filteredBlock, error) {
 	rawBlock, err := n.GetBlock(*epoch.Hash)
 	if err != nil {
-		return nil, fmt.Errorf("unable to get block: %v", err)
+		return nil, fmt.Errorf("unable to get block: %w", err)
 	}
 
 	txns := rawBlock.Transactions()
@@ -800,7 +802,7 @@ func (n *NeutrinoNotifier) RegisterSpendNtfn(outpoint *wire.OutPoint,
 		return nil, chainntnfs.ErrChainNotifierShuttingDown
 	}
 	if err != nil {
-		return nil, fmt.Errorf("unable to update filter: %v", err)
+		return nil, fmt.Errorf("unable to update filter: %w", err)
 	}
 
 	// If the txNotifier didn't return any details to perform a historical
@@ -937,7 +939,7 @@ func (n *NeutrinoNotifier) RegisterConfirmationsNtfn(txid *chainhash.Hash,
 	params := n.p2pNode.ChainParams()
 	_, addrs, _, err := txscript.ExtractPkScriptAddrs(pkScript, &params)
 	if err != nil {
-		return nil, fmt.Errorf("unable to extract script: %v", err)
+		return nil, fmt.Errorf("unable to extract script: %w", err)
 	}
 
 	// We'll send the filter update request to the notifier's main event
@@ -962,7 +964,7 @@ func (n *NeutrinoNotifier) RegisterConfirmationsNtfn(txid *chainhash.Hash,
 		return nil, chainntnfs.ErrChainNotifierShuttingDown
 	}
 	if err != nil {
-		return nil, fmt.Errorf("unable to update filter: %v", err)
+		return nil, fmt.Errorf("unable to update filter: %w", err)
 	}
 
 	// If a historical rescan was not requested by the txNotifier, then we

chainntnfs/test_utils.go

@@ -67,7 +67,8 @@ func randPubKeyHashScript() ([]byte, *btcec.PrivateKey, error) {
 func GetTestTxidAndScript(h *rpctest.Harness) (*chainhash.Hash, []byte, error) {
 	pkScript, _, err := randPubKeyHashScript()
 	if err != nil {
-		return nil, nil, fmt.Errorf("unable to generate pkScript: %v", err)
+		return nil, nil, fmt.Errorf("unable to generate pkScript: %w",
+			err)
 	}
 	output := &wire.TxOut{Value: 2e8, PkScript: pkScript}
 	txid, err := h.SendOutputs([]*wire.TxOut{output}, 10)