multi: wrap all errors

autopilot/agent.go

@@ -648,7 +648,7 @@ func (a *Agent) openChans(availableFunds btcutil.Amount, numChans uint32,
 	// to open channels to.
 	scores, err = chooseN(numChans, scores)
 	if err != nil {
-		return fmt.Errorf("unable to make weighted choice: %v",
+		return fmt.Errorf("unable to make weighted choice: %w",
 			err)
 	}
 

autopilot/combinedattach.go

@@ -84,7 +84,7 @@ func (c *WeightedCombAttachment) NodeScores(g ChannelGraph, chans []LocalChannel
 			g, chans, chanSize, nodes,
 		)
 		if err != nil {
-			return nil, fmt.Errorf("unable to get sub score: %v",
+			return nil, fmt.Errorf("unable to get sub score: %w",
 				err)
 		}
 

autopilot/manager.go

@@ -341,7 +341,7 @@ func (m *Manager) queryHeuristics(nodes map[NodeID]struct{}, localState bool) (
 			m.cfg.PilotCfg.Graph, totalChans, chanSize, nodes,
 		)
 		if err != nil {
-			return nil, fmt.Errorf("unable to get sub score: %v",
+			return nil, fmt.Errorf("unable to get sub score: %w",
 				err)
 		}
 

brontide/listener.go

@@ -91,7 +91,7 @@ func (l *Listener) listen() {
 // rejectedConnErr is a helper function that prepends the remote address of the
 // failed connection attempt to the original error message.
 func rejectedConnErr(err error, remoteAddr string) error {
-	return fmt.Errorf("unable to accept connection from %v: %v", remoteAddr,
+	return fmt.Errorf("unable to accept connection from %v: %w", remoteAddr,
 		err)
 }
 

cert/selfsigned.go

@@ -261,7 +261,7 @@ func GenCertPair(org string, tlsExtraIPs, tlsExtraDomains []string,
 		&template, &priv.PublicKey, priv,
 	)
 	if err != nil {
-		return nil, nil, fmt.Errorf("failed to create certificate: %v",
+		return nil, nil, fmt.Errorf("failed to create certificate: %w",
 			err)
 	}
 
@@ -270,13 +270,13 @@ func GenCertPair(org string, tlsExtraIPs, tlsExtraDomains []string,
 		certBuf, &pem.Block{Type: "CERTIFICATE", Bytes: derBytes},
 	)
 	if err != nil {
-		return nil, nil, fmt.Errorf("failed to encode certificate: %v",
+		return nil, nil, fmt.Errorf("failed to encode certificate: %w",
 			err)
 	}
 
 	keybytes, err := x509.MarshalECPrivateKey(priv)
 	if err != nil {
-		return nil, nil, fmt.Errorf("unable to encode privkey: %v",
+		return nil, nil, fmt.Errorf("unable to encode privkey: %w",
 			err)
 	}
 	keyBuf := &bytes.Buffer{}
@@ -284,7 +284,7 @@ func GenCertPair(org string, tlsExtraIPs, tlsExtraDomains []string,
 		keyBuf, &pem.Block{Type: "EC PRIVATE KEY", Bytes: keybytes},
 	)
 	if err != nil {
-		return nil, nil, fmt.Errorf("failed to encode private key: %v",
+		return nil, nil, fmt.Errorf("failed to encode private key: %w",
 			err)
 	}
 

chainntnfs/bitcoindnotify/bitcoind.go

@@ -792,8 +792,8 @@ func (b *BitcoindNotifier) RegisterSpendNtfn(outpoint *wire.OutPoint,
 		// proceed with fallback methods.
 		jsonErr, ok := err.(*btcjson.RPCError)
 		if !ok || jsonErr.Code != btcjson.ErrRPCNoTxInfo {
-			return nil, fmt.Errorf("unable to query for txid %v: %v",
+			return nil, fmt.Errorf("unable to query for txid "+
-				outpoint.Hash, err)
+				"%v: %w", outpoint.Hash, err)
 		}
 	}
 

chainntnfs/btcdnotify/btcd.go

@@ -886,8 +886,8 @@ func (b *BtcdNotifier) RegisterSpendNtfn(outpoint *wire.OutPoint,
 		// proceed with fallback methods.
 		jsonErr, ok := err.(*btcjson.RPCError)
 		if !ok || jsonErr.Code != btcjson.ErrRPCNoTxInfo {
-			return nil, fmt.Errorf("unable to query for txid %v: %v",
+			return nil, fmt.Errorf("unable to query for txid %v: "+
-				outpoint.Hash, err)
+				"%w", outpoint.Hash, err)
 		}
 	}
 

chainntnfs/interface.go

@@ -483,13 +483,13 @@ func GetCommonBlockAncestorHeight(chainConn ChainConn, reorgHash,
 	for reorgHash != chainHash {
 		reorgHeader, err := chainConn.GetBlockHeader(&reorgHash)
 		if err != nil {
-			return 0, fmt.Errorf("unable to get header for hash=%v: %v",
+			return 0, fmt.Errorf("unable to get header for "+
-				reorgHash, err)
+				"hash=%v: %w", reorgHash, err)
 		}
 		chainHeader, err := chainConn.GetBlockHeader(&chainHash)
 		if err != nil {
-			return 0, fmt.Errorf("unable to get header for hash=%v: %v",
+			return 0, fmt.Errorf("unable to get header for "+
-				chainHash, err)
+				"hash=%v: %w", chainHash, err)
 		}
 		reorgHash = reorgHeader.PrevBlock
 		chainHash = chainHeader.PrevBlock
@@ -497,8 +497,8 @@ func GetCommonBlockAncestorHeight(chainConn ChainConn, reorgHash,
 
 	verboseHeader, err := chainConn.GetBlockHeaderVerbose(&chainHash)
 	if err != nil {
-		return 0, fmt.Errorf("unable to get verbose header for hash=%v: %v",
+		return 0, fmt.Errorf("unable to get verbose header for "+
-			chainHash, err)
+			"hash=%v: %w", chainHash, err)
 	}
 
 	return verboseHeader.Height, nil
@@ -719,7 +719,7 @@ func ConfDetailsFromTxIndex(chainConn TxIndexConn, r ConfRequest,
 		}
 
 		return nil, TxNotFoundIndex,
-			fmt.Errorf("unable to query for txid %v: %v",
+			fmt.Errorf("unable to query for txid %v: %w",
 				r.TxID, err)
 	}
 
@@ -728,13 +728,13 @@ func ConfDetailsFromTxIndex(chainConn TxIndexConn, r ConfRequest,
 	rawTx, err := hex.DecodeString(rawTxRes.Hex)
 	if err != nil {
 		return nil, TxNotFoundIndex,
-			fmt.Errorf("unable to deserialize tx %v: %v",
+			fmt.Errorf("unable to deserialize tx %v: %w",
 				r.TxID, err)
 	}
 	var tx wire.MsgTx
 	if err := tx.Deserialize(bytes.NewReader(rawTx)); err != nil {
 		return nil, TxNotFoundIndex,
-			fmt.Errorf("unable to deserialize tx %v: %v",
+			fmt.Errorf("unable to deserialize tx %v: %w",
 				r.TxID, err)
 	}
 
@@ -759,13 +759,14 @@ func ConfDetailsFromTxIndex(chainConn TxIndexConn, r ConfRequest,
 	if err != nil {
 		return nil, TxNotFoundIndex,
 			fmt.Errorf("unable to get block hash %v for "+
-				"historical dispatch: %v", rawTxRes.BlockHash, err)
+				"historical dispatch: %w", rawTxRes.BlockHash,
+				err)
 	}
 	block, err := chainConn.GetBlock(blockHash)
 	if err != nil {
 		return nil, TxNotFoundIndex,
 			fmt.Errorf("unable to get block with hash %v for "+
-				"historical dispatch: %v", blockHash, err)
+				"historical dispatch: %w", blockHash, err)
 	}
 
 	// In the modern chain (the only one we really care about for LN), the

chainntnfs/neutrinonotify/neutrino.go

@@ -582,8 +582,8 @@ func (n *NeutrinoNotifier) historicalConfDetails(confRequest chainntnfs.ConfRequ
 		// can compute the current block hash.
 		blockHash, err := n.p2pNode.GetBlockHash(int64(scanHeight))
 		if err != nil {
-			return nil, fmt.Errorf("unable to get header for height=%v: %v",
+			return nil, fmt.Errorf("unable to get header for "+
-				scanHeight, err)
+				"height=%v: %w", scanHeight, err)
 		}
 
 		// With the hash computed, we can now fetch the basic filter for this
@@ -600,8 +600,8 @@ func (n *NeutrinoNotifier) historicalConfDetails(confRequest chainntnfs.ConfRequ
 			neutrino.MaxBatchSize(int64(scanHeight-startHeight+1)),
 		)
 		if err != nil {
-			return nil, fmt.Errorf("unable to retrieve regular filter for "+
+			return nil, fmt.Errorf("unable to retrieve regular "+
-				"height=%v: %v", scanHeight, err)
+				"filter for height=%v: %w", scanHeight, err)
 		}
 
 		// In the case that the filter exists, we'll attempt to see if

chainreg/chainregistry.go

@@ -763,11 +763,11 @@ func NewChainControl(walletConfig lnwallet.Config,
 
 	lnWallet, err := lnwallet.NewLightningWallet(walletConfig)
 	if err != nil {
-		return nil, ccCleanup, fmt.Errorf("unable to create wallet: %v",
+		return nil, ccCleanup, fmt.Errorf("unable to create wallet: %w",
 			err)
 	}
 	if err := lnWallet.Startup(); err != nil {
-		return nil, ccCleanup, fmt.Errorf("unable to create wallet: %v",
+		return nil, ccCleanup, fmt.Errorf("unable to create wallet: %w",
 			err)
 	}
 

channeldb/codec.go

@@ -78,7 +78,8 @@ func WriteElement(w io.Writer, element interface{}) error {
 
 		if e.PubKey != nil {
 			if err := binary.Write(w, byteOrder, true); err != nil {
-				return fmt.Errorf("error writing serialized element: %s", err)
+				return fmt.Errorf("error writing serialized "+
+					"element: %w", err)
 			}
 
 			return WriteElement(w, e.PubKey)

channeldb/db.go

@@ -643,7 +643,7 @@ func (c *ChannelStateDB) fetchNodeChannels(chainBucket kvdb.RBucket) (
 		oChannel, err := fetchOpenChannel(chanBucket, &outPoint)
 		if err != nil {
 			return fmt.Errorf("unable to read channel data for "+
-				"chan_point=%v: %v", outPoint, err)
+				"chan_point=%v: %w", outPoint, err)
 		}
 		oChannel.Db = c
 

channeldb/migration21/current/current_codec.go

@@ -83,7 +83,8 @@ func WriteElement(w io.Writer, element interface{}) error {
 
 		if e.PubKey != nil {
 			if err := binary.Write(w, byteOrder, true); err != nil {
-				return fmt.Errorf("error writing serialized element: %s", err)
+				return fmt.Errorf("error writing serialized "+
+					"element: %w", err)
 			}
 
 			return WriteElement(w, e.PubKey)

channeldb/migration21/legacy/legacy_codec.go

@@ -81,7 +81,8 @@ func WriteElement(w io.Writer, element interface{}) error {
 
 		if e.PubKey != nil {
 			if err := binary.Write(w, byteOrder, true); err != nil {
-				return fmt.Errorf("error writing serialized element: %s", err)
+				return fmt.Errorf("error writing serialized "+
+					"element: %w", err)
 			}
 
 			return WriteElement(w, e.PubKey)

channeldb/migration25/migration.go

@@ -93,7 +93,7 @@ func findOpenChannels(openChanBucket kvdb.RBucket) ([]*OpenChannel, error) {
 		// open channels as they don't have any revocation logs and
 		// their current commitments reflect the initial balances.
 		if err := FetchChanCommitments(chanBucket, c); err != nil {
-			return fmt.Errorf("unable to fetch chan commits: %v",
+			return fmt.Errorf("unable to fetch chan commits: %w",
 				err)
 		}
 

channeldb/migration27/migration.go

@@ -79,7 +79,7 @@ func findHistoricalChannels(historicalBucket kvdb.RBucket) ([]*OpenChannel,
 		// Try to fetch channel info in old format.
 		err = fetchChanInfoCompatible(chanBucket, c, true)
 		if err != nil {
-			return fmt.Errorf("%s: fetch chan info got: %v",
+			return fmt.Errorf("%s: fetch chan info got: %w",
 				c.FundingOutpoint, err)
 		}
 

channeldb/migration30/migration.go

@@ -254,7 +254,7 @@ func writeRevocationLogs(openChanBucket kvdb.RwBucket,
 			logEntrykey := mig24.MakeLogKey(entry.commitHeight)
 			err = logBucket.Put(logEntrykey[:], b.Bytes())
 			if err != nil {
-				return fmt.Errorf("putRevocationLog err: %v",
+				return fmt.Errorf("putRevocationLog err: %w",
 					err)
 			}
 		}

channeldb/migration_01_to_11/codec.go

@@ -70,7 +70,7 @@ func WriteElement(w io.Writer, element interface{}) error {
 
 		if e.PubKey != nil {
 			if err := binary.Write(w, byteOrder, true); err != nil {
-				return fmt.Errorf("error writing serialized element: %s", err)
+				return fmt.Errorf("error writing serialized element: %w", err)
 			}
 
 			return WriteElement(w, e.PubKey)

channeldb/migration_01_to_11/graph.go

@@ -1140,7 +1140,7 @@ func deserializeChanEdgePolicy(r io.Reader,
 
 	node, err := fetchLightningNode(nodes, pub[:])
 	if err != nil {
-		return nil, fmt.Errorf("unable to fetch node: %x, %v",
+		return nil, fmt.Errorf("unable to fetch node: %x, %w",
 			pub[:], err)
 	}
 	edge.Node = &node

channeldb/migration_01_to_11/migrations.go

@@ -516,7 +516,7 @@ func MigratePruneEdgeUpdateIndex(tx kvdb.RwTx) error {
 	// well.
 	edgeIndex, err := edges.CreateBucketIfNotExists(edgeIndexBucket)
 	if err != nil {
-		return fmt.Errorf("error creating edge index bucket: %s", err)
+		return fmt.Errorf("error creating edge index bucket: %w", err)
 	}
 	if edgeIndex == nil {
 		return fmt.Errorf("unable to create/fetch edge index " +
@@ -546,7 +546,7 @@ func MigratePruneEdgeUpdateIndex(tx kvdb.RwTx) error {
 		return nil
 	})
 	if err != nil {
-		return fmt.Errorf("unable to gather existing edge policies: %v",
+		return fmt.Errorf("unable to gather existing edge policies: %w",
 			err)
 	}
 
@@ -560,7 +560,7 @@ func MigratePruneEdgeUpdateIndex(tx kvdb.RwTx) error {
 		return nil
 	})
 	if err != nil {
-		return fmt.Errorf("unable to gather existing edge updates: %v",
+		return fmt.Errorf("unable to gather existing edge updates: %w",
 			err)
 	}
 

channeldb/migration_01_to_11/zpay32/amountunits.go

@@ -136,7 +136,7 @@ func encodeAmount(msat lnwire.MilliSatoshi) (string, error) {
 	// Should always be expressible in pico BTC.
 	pico, err := fromMSat['p'](msat)
 	if err != nil {
-		return "", fmt.Errorf("unable to express %d msat as pBTC: %v",
+		return "", fmt.Errorf("unable to express %d msat as pBTC: %w",
 			msat, err)
 	}
 	shortened := strconv.FormatUint(pico, 10) + "p"

channeldb/payment_control.go

@@ -229,7 +229,7 @@ func (p *PaymentControl) InitPayment(paymentHash lntypes.Hash,
 		return bucket.Delete(paymentFailInfoKey)
 	})
 	if err != nil {
-		return err
+		return fmt.Errorf("unable to init payment: %w", err)
 	}
 
 	return updateErr

channeldb/payments.go

@@ -615,7 +615,7 @@ func (d *DB) QueryPayments(query PaymentsQuery) (PaymentsResponse, error) {
 				err = indexes.ForEach(countFn)
 			}
 			if err != nil {
-				return fmt.Errorf("error counting payments: %v",
+				return fmt.Errorf("error counting payments: %w",
 					err)
 			}
 

cmd/lncli/cmd_macaroon.go

@@ -361,7 +361,7 @@ func printMacaroon(ctx *cli.Context) error {
 	case args.Present():
 		macBytes, err = hex.DecodeString(args.First())
 		if err != nil {
-			return fmt.Errorf("unable to hex decode macaroon: %v",
+			return fmt.Errorf("unable to hex decode macaroon: %w",
 				err)
 		}
 

cmd/lncli/cmd_open_channel.go

@@ -602,7 +602,7 @@ func openChannelPsbt(rpcCtx context.Context, ctx *cli.Context,
 			// Recv blocks until a message or error arrives.
 			resp, err := stream.Recv()
 			if err == io.EOF {
-				srvErr <- fmt.Errorf("lnd shutting down: %v",
+				srvErr <- fmt.Errorf("lnd shutting down: %w",
 					err)
 				return
 			} else if err != nil {
@@ -685,7 +685,7 @@ func openChannelPsbt(rpcCtx context.Context, ctx *cli.Context,
 			}
 			fundedPsbt, err := decodePsbt(inputPsbt)
 			if err != nil {
-				return fmt.Errorf("psbt decode failed: %v",
+				return fmt.Errorf("psbt decode failed: %w",
 					err)
 			}
 			verifyMsg := &lnrpc.FundingTransitionMsg{
@@ -873,14 +873,14 @@ func batchOpenChannel(ctx *cli.Context) error {
 	for idx, jsonChannel := range jsonChannels {
 		pubKeyBytes, err := hex.DecodeString(jsonChannel.NodePubkey)
 		if err != nil {
-			return fmt.Errorf("error parsing node pubkey hex: %v",
+			return fmt.Errorf("error parsing node pubkey hex: %w",
 				err)
 		}
 		pendingChanBytes, err := hex.DecodeString(
 			jsonChannel.PendingChanID,
 		)
 		if err != nil {
-			return fmt.Errorf("error parsing pending chan ID: %v",
+			return fmt.Errorf("error parsing pending chan ID: %w",
 				err)
 		}
 

cmd/lncli/cmd_payments.go

@@ -525,13 +525,13 @@ func sendPaymentRequest(ctx *cli.Context,
 
 			recordID, err := strconv.ParseUint(kv[0], 10, 64)
 			if err != nil {
-				return fmt.Errorf("invalid data format: %v",
+				return fmt.Errorf("invalid data format: %w",
 					err)
 			}
 
 			hexValue, err := hex.DecodeString(kv[1])
 			if err != nil {
-				return fmt.Errorf("invalid data format: %v",
+				return fmt.Errorf("invalid data format: %w",
 					err)
 			}
 
@@ -1514,7 +1514,7 @@ func forwardingHistory(ctx *cli.Context) error {
 	case args.Present():
 		i, err := strconv.ParseInt(args.First(), 10, 64)
 		if err != nil {
-			return fmt.Errorf("unable to decode index_offset: %v",
+			return fmt.Errorf("unable to decode index_offset: %w",
 				err)
 		}
 		indexOffset = uint32(i)
@@ -1527,7 +1527,7 @@ func forwardingHistory(ctx *cli.Context) error {
 	case args.Present():
 		m, err := strconv.ParseInt(args.First(), 10, 64)
 		if err != nil {
-			return fmt.Errorf("unable to decode max_events: %v",
+			return fmt.Errorf("unable to decode max_events: %w",
 				err)
 		}
 		maxEvents = uint32(m)
@@ -1616,7 +1616,7 @@ func buildRoute(ctx *cli.Context) error {
 	for _, k := range hops {
 		pubkey, err := route.NewVertexFromStr(k)
 		if err != nil {
-			return fmt.Errorf("error parsing %v: %v", k, err)
+			return fmt.Errorf("error parsing %v: %w", k, err)
 		}
 		rpcHops = append(rpcHops, pubkey[:])
 	}
@@ -1757,7 +1757,7 @@ func deletePayments(ctx *cli.Context) error {
 	case singlePayment:
 		paymentHash, err = hex.DecodeString(ctx.String("payment_hash"))
 		if err != nil {
-			return fmt.Errorf("error decoding payment_hash: %v",
+			return fmt.Errorf("error decoding payment_hash: %w",
 				err)
 		}
 
@@ -1766,7 +1766,7 @@ func deletePayments(ctx *cli.Context) error {
 			FailedHtlcsOnly: failedHTLCsOnly,
 		})
 		if err != nil {
-			return fmt.Errorf("error deleting single payment: %v",
+			return fmt.Errorf("error deleting single payment: %w",
 				err)
 		}
 

cmd/lncli/cmd_profile.go

@@ -150,7 +150,7 @@ func profileAdd(ctx *cli.Context) error {
 	// All done, store the updated profile file.
 	f.Profiles = append(f.Profiles, profile)
 	if err = saveProfileFile(defaultProfileFile, f); err != nil {
-		return fmt.Errorf("error writing profile file %s: %v",
+		return fmt.Errorf("error writing profile file %s: %w",
 			defaultProfileFile, err)
 	}
 
@@ -443,7 +443,7 @@ func profileAddMacaroon(ctx *cli.Context) error {
 		selectedProfile.Macaroons.Jar, macEntry,
 	)
 	if err = saveProfileFile(defaultProfileFile, f); err != nil {
-		return fmt.Errorf("error writing profile file %s: %v",
+		return fmt.Errorf("error writing profile file %s: %w",
 			defaultProfileFile, err)
 	}
 

cmd/lncli/commands.go

@@ -1811,7 +1811,7 @@ func getChanInfo(ctx *cli.Context) error {
 	case ctx.Args().Present():
 		chanID, err = strconv.ParseUint(ctx.Args().First(), 10, 64)
 		if err != nil {
-			return fmt.Errorf("error parsing chan_id: %s", err)
+			return fmt.Errorf("error parsing chan_id: %w", err)
 		}
 	default:
 		return fmt.Errorf("chan_id argument missing")

cmd/lncli/macaroon_jar.go

@@ -67,7 +67,7 @@ func (e *macaroonEntry) loadMacaroon(
 
 		macBytes, err = decryptMacaroon(parts[1], parts[2], pw)
 		if err != nil {
-			return nil, fmt.Errorf("unable to decrypt macaroon: %v",
+			return nil, fmt.Errorf("unable to decrypt macaroon: %w",
 				err)
 		}
 	} else {
@@ -142,7 +142,7 @@ func decryptMacaroon(keyB64, dataB64 string, pw []byte) ([]byte, error) {
 	key := &snacl.SecretKey{}
 	err = key.Unmarshal(keyData)
 	if err != nil {
-		return nil, fmt.Errorf("could not unmarshal encryption key: %v",
+		return nil, fmt.Errorf("could not unmarshal encryption key: %w",
 			err)
 	}
 
@@ -155,7 +155,7 @@ func decryptMacaroon(keyB64, dataB64 string, pw []byte) ([]byte, error) {
 	}
 	macBytes, err := key.Decrypt(encryptedMac)
 	if err != nil {
-		return nil, fmt.Errorf("could not decrypt macaroon data: %v",
+		return nil, fmt.Errorf("could not decrypt macaroon data: %w",
 			err)
 	}
 	return macBytes, nil

cmd/lncli/profile.go

@@ -224,7 +224,7 @@ func loadProfileFile(file string) (*profileFile, error) {
 
 	content, err := ioutil.ReadFile(file)
 	if err != nil {
-		return nil, fmt.Errorf("could not load profile file %s: %v",
+		return nil, fmt.Errorf("could not load profile file %s: %w",
 			file, err)
 	}
 	f := &profileFile{}
@@ -262,7 +262,7 @@ func (f *profileFile) unmarshalJSON(content []byte) error {
 func (f *profileFile) marshalJSON() ([]byte, error) {
 	b, err := json.Marshal(f)
 	if err != nil {
-		return nil, fmt.Errorf("error JSON marshalling profile: %v",
+		return nil, fmt.Errorf("error JSON marshalling profile: %w",
 			err)
 	}
 

cmd/lncli/walletrpc_active.go

@@ -1235,8 +1235,8 @@ func fundPsbt(ctx *cli.Context) error {
 			// entry must be present.
 			jsonMap := []byte(ctx.String("outputs"))
 			if err := json.Unmarshal(jsonMap, &amountToAddr); err != nil {
-				return fmt.Errorf("error parsing outputs JSON: %v",
+				return fmt.Errorf("error parsing outputs "+
-					err)
+					"JSON: %w", err)
 			}
 			tpl.Outputs = amountToAddr
 		}

config_builder.go

@@ -568,7 +568,7 @@ func (d *DefaultWalletImpl) BuildWalletConfig(ctx context.Context,
 	)
 	cleanUpTasks = append(cleanUpTasks, pccCleanup)
 	if err != nil {
-		err := fmt.Errorf("unable to create partial chain control: %v",
+		err := fmt.Errorf("unable to create partial chain control: %w",
 			err)
 		d.logger.Error(err)
 		return nil, nil, nil, err
@@ -1073,7 +1073,7 @@ func (d *DefaultDatabaseBuilder) BuildDatabase(
 		if err != nil {
 			cleanUp()
 
-			err := fmt.Errorf("unable to open %s database: %v",
+			err := fmt.Errorf("unable to open %s database: %w",
 				lncfg.NSTowerClientDB, err)
 			d.logger.Error(err)
 			return nil, nil, err
@@ -1088,7 +1088,7 @@ func (d *DefaultDatabaseBuilder) BuildDatabase(
 		if err != nil {
 			cleanUp()
 
-			err := fmt.Errorf("unable to open %s database: %v",
+			err := fmt.Errorf("unable to open %s database: %w",
 				lncfg.NSTowerServerDB, err)
 			d.logger.Error(err)
 			return nil, nil, err
@@ -1303,7 +1303,7 @@ func importWatchOnlyAccounts(wallet *wallet.Wallet,
 			addrSchema,
 		)
 		if err != nil {
-			return fmt.Errorf("could not import account %v: %v",
+			return fmt.Errorf("could not import account %v: %w",
 				name, err)
 		}
 	}

contractcourt/breach_arbitrator.go

@@ -931,7 +931,7 @@ func (b *BreachArbitrator) cleanupBreach(chanPoint *wire.OutPoint) error {
 	// info from the database.
 	err = b.cfg.Store.Remove(chanPoint)
 	if err != nil {
-		return fmt.Errorf("unable to remove retribution from db: %v",
+		return fmt.Errorf("unable to remove retribution from db: %w",
 			err)
 	}
 

discovery/gossiper.go

@@ -1647,7 +1647,7 @@ func (d *AuthenticatedGossiper) retransmitStaleAnns(now time.Time) error {
 		return nil
 	})
 	if err != nil && err != channeldb.ErrGraphNoEdgesFound {
-		return fmt.Errorf("unable to retrieve outgoing channels: %v",
+		return fmt.Errorf("unable to retrieve outgoing channels: %w",
 			err)
 	}
 
@@ -1873,7 +1873,7 @@ func (d *AuthenticatedGossiper) processRejectedEdge(
 	// to the database.
 	err = d.cfg.Router.AddProof(chanAnnMsg.ShortChannelID, proof)
 	if err != nil {
-		err := fmt.Errorf("unable add proof to shortChanID=%v: %v",
+		err := fmt.Errorf("unable add proof to shortChanID=%v: %w",
 			chanAnnMsg.ShortChannelID, err)
 		log.Error(err)
 		return nil, err
@@ -1910,7 +1910,7 @@ func (d *AuthenticatedGossiper) addNode(msg *lnwire.NodeAnnouncement,
 	op ...batch.SchedulerOption) error {
 
 	if err := routing.ValidateNodeAnn(msg); err != nil {
-		return fmt.Errorf("unable to validate node announcement: %v",
+		return fmt.Errorf("unable to validate node announcement: %w",
 			err)
 	}
 

discovery/message_store.go

@@ -72,7 +72,7 @@ func NewMessageStore(db kvdb.Backend) (*MessageStore, error) {
 		return err
 	})
 	if err != nil {
-		return nil, fmt.Errorf("unable to create required buckets: %v",
+		return nil, fmt.Errorf("unable to create required buckets: %w",
 			err)
 	}
 

discovery/syncer.go

@@ -1252,7 +1252,7 @@ func (g *GossipSyncer) replyShortChanIDs(query *lnwire.QueryShortChanIDs) error
 		query.ChainHash, query.ShortChanIDs,
 	)
 	if err != nil {
-		return fmt.Errorf("unable to fetch chan anns for %v..., %v",
+		return fmt.Errorf("unable to fetch chan anns for %v..., %w",
 			query.ShortChanIDs[0].ToUint64(), err)
 	}
 

feature/manager.go

@@ -211,7 +211,7 @@ func newManager(cfg Config, desc setDesc) (*Manager, error) {
 		fv := lnwire.NewFeatureVector(raw, lnwire.Features)
 		err := ValidateDeps(fv)
 		if err != nil {
-			return nil, fmt.Errorf("invalid feature set %v: %v",
+			return nil, fmt.Errorf("invalid feature set %v: %w",
 				set, err)
 		}
 	}

funding/batch.go

@@ -226,7 +226,7 @@ func (b *Batcher) BatchFund(ctx context.Context,
 					"chan ID")
 			}
 		} else if _, err := rand.Read(pendingChanID[:]); err != nil {
-			return nil, fmt.Errorf("error making temp chan ID: %v",
+			return nil, fmt.Errorf("error making temp chan ID: %w",
 				err)
 		}
 
@@ -265,7 +265,7 @@ func (b *Batcher) BatchFund(ctx context.Context,
 			},
 		})
 		if err != nil {
-			return nil, fmt.Errorf("error parsing channel %d: %v",
+			return nil, fmt.Errorf("error parsing channel %d: %w",
 				idx, err)
 		}
 

funding/manager.go

@@ -1123,7 +1123,7 @@ func (f *Manager) stateStep(channel *channeldb.OpenChannel,
 	case markedOpen:
 		err := f.sendChannelReady(channel, lnChannel)
 		if err != nil {
-			return fmt.Errorf("failed sending channelReady: %v",
+			return fmt.Errorf("failed sending channelReady: %w",
 				err)
 		}
 
@@ -1137,7 +1137,7 @@ func (f *Manager) stateStep(channel *channeldb.OpenChannel,
 		)
 		if err != nil {
 			return fmt.Errorf("error setting channel state to"+
-				" channelReadySent: %v", err)
+				" channelReadySent: %w", err)
 		}
 
 		log.Debugf("Channel(%v) with ShortChanID %v: successfully "+
@@ -1207,7 +1207,7 @@ func (f *Manager) stateStep(channel *channeldb.OpenChannel,
 		// shutdown.
 		err = f.deleteChannelOpeningState(&channel.FundingOutpoint)
 		if err != nil {
-			return fmt.Errorf("error deleting channel state: %v",
+			return fmt.Errorf("error deleting channel state: %w",
 				err)
 		}
 
@@ -2757,7 +2757,7 @@ func (f *Manager) fundingTimeout(c *channeldb.OpenChannel,
 	if err := c.CloseChannel(
 		closeInfo, channeldb.ChanStatusLocalCloseInitiator,
 	); err != nil {
-		return fmt.Errorf("failed closing channel %v: %v",
+		return fmt.Errorf("failed closing channel %v: %w",
 			c.FundingOutpoint, err)
 	}
 
@@ -4784,7 +4784,7 @@ func (f *Manager) handleInitFundingMsg(msg *InitFundingMsg) {
 	}
 
 	if err := msg.Peer.SendMessage(true, &fundingOpen); err != nil {
-		e := fmt.Errorf("unable to send funding request message: %v",
+		e := fmt.Errorf("unable to send funding request message: %w",
 			err)
 		log.Errorf(e.Error())
 

input/musig2.go

@@ -587,7 +587,7 @@ func DeserializePartialSignature(scalarBytes []byte) (*musig2.PartialSignature,
 
 	sig := &musig2.PartialSignature{}
 	if err := sig.Decode(bytes.NewReader(scalarBytes)); err != nil {
-		return nil, fmt.Errorf("error decoding partial signature: %v",
+		return nil, fmt.Errorf("error decoding partial signature: %w",
 			err)
 	}
 

kvdb/bolt_compact.go

@@ -90,7 +90,7 @@ func (cmd *compacter) execute() (int64, int64, error) {
 		Timeout:  cmd.dbTimeout,
 	})
 	if err != nil {
-		return 0, 0, fmt.Errorf("error opening source database: %v",
+		return 0, 0, fmt.Errorf("error opening source database: %w",
 			err)
 	}
 	defer func() {
@@ -105,7 +105,7 @@ func (cmd *compacter) execute() (int64, int64, error) {
 	})
 	if err != nil {
 		return 0, 0, fmt.Errorf("error opening destination database: "+
-			"%v", err)
+			"%w", err)
 	}
 	defer func() {
 		if err := dst.Close(); err != nil {
@@ -122,7 +122,7 @@ func (cmd *compacter) execute() (int64, int64, error) {
 	fi, err = os.Stat(cmd.dstPath)
 	if err != nil {
 		return 0, 0, fmt.Errorf("error determining destination "+
-			"database size: %v", err)
+			"database size: %w", err)
 	} else if fi.Size() == 0 {
 		return 0, 0, fmt.Errorf("zero db size")
 	}

lnd.go

@@ -91,7 +91,7 @@ func AdminAuthOptions(cfg *Config, skipMacaroons bool) ([]grpc.DialOption,
 
 		mac := &macaroon.Macaroon{}
 		if err = mac.UnmarshalBinary(macBytes); err != nil {
-			return nil, fmt.Errorf("unable to decode macaroon: %v",
+			return nil, fmt.Errorf("unable to decode macaroon: %w",
 				err)
 		}
 

lnrpc/devrpc/dev_server.go

@@ -252,7 +252,7 @@ func (s *Server) ImportGraph(ctx context.Context,
 		}
 
 		if err := graphDB.AddLightningNode(node); err != nil {
-			return nil, fmt.Errorf("unable to add node %v: %v",
+			return nil, fmt.Errorf("unable to add node %v: %w",
 				rpcNode.PubKey, err)
 		}
 
@@ -285,7 +285,7 @@ func (s *Server) ImportGraph(ctx context.Context,
 		edge.ChannelPoint = *channelPoint
 
 		if err := graphDB.AddChannelEdge(edge); err != nil {
-			return nil, fmt.Errorf("unable to add edge %v: %v",
+			return nil, fmt.Errorf("unable to add edge %v: %w",
 				rpcEdge.ChanPoint, err)
 		}
 

lnrpc/routerrpc/router_server.go

@@ -1140,7 +1140,7 @@ func toPairSnapshot(pairResult *PairHistory) (*routing.MissionControlPairSnapsho
 		pairResult.History.FailTime,
 	)
 	if err != nil {
-		return nil, fmt.Errorf("%v invalid failure: %v", pairPrefix,
+		return nil, fmt.Errorf("%v invalid failure: %w", pairPrefix,
 			err)
 	}
 
@@ -1150,7 +1150,7 @@ func toPairSnapshot(pairResult *PairHistory) (*routing.MissionControlPairSnapsho
 		pairResult.History.SuccessTime,
 	)
 	if err != nil {
-		return nil, fmt.Errorf("%v invalid success: %v", pairPrefix,
+		return nil, fmt.Errorf("%v invalid success: %w", pairPrefix,
 			err)
 	}
 

lnrpc/signrpc/signer_server.go

@@ -710,14 +710,14 @@ func (s *Server) VerifyMessage(_ context.Context,
 		// for Schnorr signatures.
 		pubkey, err := schnorr.ParsePubKey(in.Pubkey)
 		if err != nil {
-			return nil, fmt.Errorf("unable to parse pubkey: %v",
+			return nil, fmt.Errorf("unable to parse pubkey: %w",
 				err)
 		}
 
 		sigParsed, err := schnorr.ParseSignature(in.Signature)
 		if err != nil {
 			return nil, fmt.Errorf("can't parse Schnorr "+
-				"signature: %v", err)
+				"signature: %w", err)
 		}
 
 		var digest []byte
@@ -746,7 +746,7 @@ func (s *Server) VerifyMessage(_ context.Context,
 	}
 	sig, err := wireSig.ToSignature()
 	if err != nil {
-		return nil, fmt.Errorf("failed to convert from wire format: %v",
+		return nil, fmt.Errorf("failed to convert from wire format: %w",
 			err)
 	}
 
@@ -874,7 +874,7 @@ func (s *Server) MuSig2CombineKeys(_ context.Context,
 	// Are there any tweaks to apply to the combined public key?
 	tweaks, err := UnmarshalTweaks(in.Tweaks, in.TaprootTweak)
 	if err != nil {
-		return nil, fmt.Errorf("error unmarshaling tweak options: %v",
+		return nil, fmt.Errorf("error unmarshaling tweak options: %w",
 			err)
 	}
 
@@ -1014,7 +1014,7 @@ func (s *Server) MuSig2CreateSession(_ context.Context,
 	// Are there any tweaks to apply to the combined public key?
 	tweaks, err := UnmarshalTweaks(in.Tweaks, in.TaprootTweak)
 	if err != nil {
-		return nil, fmt.Errorf("error unmarshaling tweak options: %v",
+		return nil, fmt.Errorf("error unmarshaling tweak options: %w",
 			err)
 	}
 
@@ -1139,7 +1139,7 @@ func (s *Server) MuSig2CombineSig(_ context.Context,
 		in.OtherPartialSignatures,
 	)
 	if err != nil {
-		return nil, fmt.Errorf("error parsing partial signatures: %v",
+		return nil, fmt.Errorf("error parsing partial signatures: %w",
 			err)
 	}
 

lnrpc/walletrpc/walletkit_server.go

@@ -1038,7 +1038,7 @@ func (w *WalletKit) BumpFee(ctx context.Context,
 	// with an unconfirmed transaction.
 	_, currentHeight, err := w.cfg.Chain.GetBestBlock()
 	if err != nil {
-		return nil, fmt.Errorf("unable to retrieve current height: %v",
+		return nil, fmt.Errorf("unable to retrieve current height: %w",
 			err)
 	}
 
@@ -2607,7 +2607,7 @@ func (w *WalletKit) ImportTapscript(_ context.Context,
 	taprootScope := waddrmgr.KeyScopeBIP0086
 	addr, err := w.cfg.Wallet.ImportTaprootScript(taprootScope, tapscript)
 	if err != nil {
-		return nil, fmt.Errorf("error importing script into wallet: %v",
+		return nil, fmt.Errorf("error importing script into wallet: %w",
 			err)
 	}
 

lnrpc/wtclientrpc/wtclient.go

@@ -208,7 +208,8 @@ func (c *WatchtowerClient) AddTower(ctx context.Context,
 		c.cfg.Resolver,
 	)
 	if err != nil {
-		return nil, fmt.Errorf("invalid address %v: %v", req.Address, err)
+		return nil, fmt.Errorf("invalid address %v: %w", req.Address,
+			err)
 	}
 
 	towerAddr := &lnwire.NetAddress{

lntest/bitcoind_common.go

@@ -192,7 +192,7 @@ func newBackend(miner string, netParams *chaincfg.Params, extraArgs []string,
 	client, err := rpcclient.New(&rpcCfg, nil)
 	if err != nil {
 		_ = cleanUp()
-		return nil, nil, fmt.Errorf("unable to create rpc client: %v",
+		return nil, nil, fmt.Errorf("unable to create rpc client: %w",
 			err)
 	}
 

lntest/node/harness_node.go

@@ -294,14 +294,14 @@ func (hn *HarnessNode) ReadMacaroon(macPath string, timeout time.Duration) (
 	err := wait.NoError(func() error {
 		macBytes, err := ioutil.ReadFile(macPath)
 		if err != nil {
-			return fmt.Errorf("error reading macaroon file: %v",
+			return fmt.Errorf("error reading macaroon file: %w",
 				err)
 		}
 
 		newMac := &macaroon.Macaroon{}
 		if err = newMac.UnmarshalBinary(macBytes); err != nil {
 			return fmt.Errorf("error unmarshalling macaroon "+
-				"file: %v", err)
+				"file: %w", err)
 		}
 		mac = newMac
 
@@ -619,7 +619,7 @@ func (hn *HarnessNode) cleanup() error {
 	if hn.Cfg.backupDBDir != "" {
 		err := os.RemoveAll(hn.Cfg.backupDBDir)
 		if err != nil {
-			return fmt.Errorf("unable to remove backup dir: %v",
+			return fmt.Errorf("unable to remove backup dir: %w",
 				err)
 		}
 	}

lnwallet/btcwallet/psbt.go

@@ -450,7 +450,7 @@ func signSegWitV0(in *psbt.PInput, tx *wire.MsgTx,
 		in.SighashType, privKey,
 	)
 	if err != nil {
-		return fmt.Errorf("error signing input %d: %v", idx, err)
+		return fmt.Errorf("error signing input %d: %w", idx, err)
 	}
 	in.PartialSigs = append(in.PartialSigs, &psbt.PartialSig{
 		PubKey:    pubKeyBytes,
@@ -472,7 +472,7 @@ func signSegWitV1KeySpend(in *psbt.PInput, tx *wire.MsgTx,
 		privKey,
 	)
 	if err != nil {
-		return fmt.Errorf("error signing taproot input %d: %v", idx,
+		return fmt.Errorf("error signing taproot input %d: %w", idx,
 			err)
 	}
 
@@ -492,7 +492,7 @@ func signSegWitV1ScriptSpend(in *psbt.PInput, tx *wire.MsgTx,
 		in.WitnessUtxo.PkScript, leaf, in.SighashType, privKey,
 	)
 	if err != nil {
-		return fmt.Errorf("error signing taproot script input %d: %v",
+		return fmt.Errorf("error signing taproot script input %d: %w",
 			idx, err)
 	}
 

lnwallet/chanfunding/psbt_assembler.go

@@ -192,7 +192,7 @@ func (i *PsbtIntent) FundingParams() (btcutil.Address, int64, *psbt.Packet,
 	// Encode the address in the human-readable bech32 format.
 	addr, err := script.Address(i.netParams)
 	if err != nil {
-		return nil, 0, nil, fmt.Errorf("unable to encode address: %v",
+		return nil, 0, nil, fmt.Errorf("unable to encode address: %w",
 			err)
 	}
 
@@ -204,7 +204,7 @@ func (i *PsbtIntent) FundingParams() (btcutil.Address, int64, *psbt.Packet,
 		packet, err = psbt.New(nil, nil, 2, 0, nil)
 		if err != nil {
 			return nil, 0, nil, fmt.Errorf("unable to create "+
-				"PSBT: %v", err)
+				"PSBT: %w", err)
 		}
 	}
 	packet.UnsignedTx.TxOut = append(packet.UnsignedTx.TxOut, out)

lnwallet/rpcwallet/rpcwallet.go

@@ -533,12 +533,12 @@ func (r *RPCKeyRing) SignMessageSchnorr(keyLoc keychain.KeyLocator,
 	if err != nil {
 		considerShutdown(err)
 		return nil, fmt.Errorf("error signing message in remote "+
-			"signer instance: %v", err)
+			"signer instance: %w", err)
 	}
 
 	sigParsed, err := schnorr.ParseSignature(resp.Signature)
 	if err != nil {
-		return nil, fmt.Errorf("can't parse schnorr signature: %v",
+		return nil, fmt.Errorf("can't parse schnorr signature: %w",
 			err)
 	}
 	return sigParsed, nil
@@ -634,7 +634,7 @@ func (r *RPCKeyRing) ComputeInputScript(tx *wire.MsgTx,
 	// input.
 	sig, err := r.remoteSign(tx, signDesc, witnessProgram)
 	if err != nil {
-		return nil, fmt.Errorf("error signing with remote instance: %v",
+		return nil, fmt.Errorf("error signing with remote instance: %w",
 			err)
 	}
 
@@ -740,7 +740,7 @@ func (r *RPCKeyRing) MuSig2CreateSession(bipVersion input.MuSig2Version,
 			resp.TaprootInternalKey,
 		)
 		if err != nil {
-			return nil, fmt.Errorf("error parsing internal key: %v",
+			return nil, fmt.Errorf("error parsing internal key: %w",
 				err)
 		}
 	}
@@ -1261,7 +1261,7 @@ func connectRPC(hostPort, tlsCertPath, macaroonPath string,
 
 	certBytes, err := ioutil.ReadFile(tlsCertPath)
 	if err != nil {
-		return nil, fmt.Errorf("error reading TLS cert file %v: %v",
+		return nil, fmt.Errorf("error reading TLS cert file %v: %w",
 			tlsCertPath, err)
 	}
 
@@ -1273,7 +1273,7 @@ func connectRPC(hostPort, tlsCertPath, macaroonPath string,
 
 	macBytes, err := ioutil.ReadFile(macaroonPath)
 	if err != nil {
-		return nil, fmt.Errorf("error reading macaroon file %v: %v",
+		return nil, fmt.Errorf("error reading macaroon file %v: %w",
 			macaroonPath, err)
 	}
 	mac := &macaroon.Macaroon{}
@@ -1297,7 +1297,7 @@ func connectRPC(hostPort, tlsCertPath, macaroonPath string,
 	defer cancel()
 	conn, err := grpc.DialContext(ctxt, hostPort, opts...)
 	if err != nil {
-		return nil, fmt.Errorf("unable to connect to RPC server: %v",
+		return nil, fmt.Errorf("unable to connect to RPC server: %w",
 			err)
 	}
 

peer/brontide.go

@@ -3352,7 +3352,7 @@ func (p *Brontide) handleInitMsg(msg *lnwire.Init) error {
 	// those presented in the local features fields.
 	err := msg.Features.Merge(msg.GlobalFeatures)
 	if err != nil {
-		return fmt.Errorf("unable to merge legacy global features: %v",
+		return fmt.Errorf("unable to merge legacy global features: %w",
 			err)
 	}
 

routing/missioncontrol_store.go

@@ -75,7 +75,7 @@ func newMissionControlStore(db kvdb.Backend, maxRecords int,
 	err := kvdb.Update(db, func(tx kvdb.RwTx) error {
 		resultsBucket, err := tx.CreateTopLevelBucket(resultsKey)
 		if err != nil {
-			return fmt.Errorf("cannot create results bucket: %v",
+			return fmt.Errorf("cannot create results bucket: %w",
 				err)
 		}
 

rpcperms/middleware_handler.go

@@ -418,7 +418,7 @@ func NewMessageInterceptionRequest(ctx context.Context,
 	case proto.Message:
 		req.ProtoSerialized, err = proto.Marshal(t)
 		if err != nil {
-			return nil, fmt.Errorf("cannot marshal proto msg: %v",
+			return nil, fmt.Errorf("cannot marshal proto msg: %w",
 				err)
 		}
 		req.ProtoTypeName = string(proto.MessageName(t))

rpcserver.go

@@ -1919,7 +1919,7 @@ func newPsbtAssembler(req *lnrpc.OpenChannelRequest, normalizedMinConfs int32,
 			bytes.NewReader(psbtShim.BasePsbt), false,
 		)
 		if err != nil {
-			return nil, fmt.Errorf("error parsing base PSBT: %v",
+			return nil, fmt.Errorf("error parsing base PSBT: %w",
 				err)
 		}
 	}
@@ -2144,7 +2144,7 @@ func (r *rpcServer) parseOpenChannelReq(in *lnrpc.OpenChannelRequest,
 		in.CloseAddress, r.cfg.ActiveNetParams.Params,
 	)
 	if err != nil {
-		return nil, fmt.Errorf("error parsing upfront shutdown: %v",
+		return nil, fmt.Errorf("error parsing upfront shutdown: %w",
 			err)
 	}
 
@@ -6513,7 +6513,7 @@ func (r *rpcServer) StopDaemon(_ context.Context,
 	// otherwise some funds wouldn't be picked up.
 	isRecoveryMode, progress, err := r.server.cc.Wallet.GetRecoveryInfo()
 	if err != nil {
-		return nil, fmt.Errorf("unable to get wallet recovery info: %v",
+		return nil, fmt.Errorf("unable to get wallet recovery info: %w",
 			err)
 	}
 	if isRecoveryMode && progress < 1 {
@@ -7211,7 +7211,7 @@ func (r *rpcServer) ForwardingHistory(ctx context.Context,
 	}
 	timeSlice, err := r.server.miscDB.ForwardingLog().Query(eventQuery)
 	if err != nil {
-		return nil, fmt.Errorf("unable to query forwarding log: %v",
+		return nil, fmt.Errorf("unable to query forwarding log: %w",
 			err)
 	}
 
@@ -8013,7 +8013,7 @@ func (r *rpcServer) FundingStateStep(ctx context.Context,
 				false,
 			)
 			if err != nil {
-				return nil, fmt.Errorf("error parsing psbt: %v",
+				return nil, fmt.Errorf("error parsing psbt: %w",
 					err)
 			}
 

walletunlocker/service.go

@@ -882,7 +882,7 @@ func (u *UnlockerService) ChangePassword(ctx context.Context,
 
 	err = macaroonService.Close()
 	if err != nil {
-		return nil, fmt.Errorf("could not close macaroon service: %v",
+		return nil, fmt.Errorf("could not close macaroon service: %w",
 			err)
 	}
 

watchtower/wtclient/session_negotiator.go

@@ -475,7 +475,7 @@ func (n *sessionNegotiator) tryAddress(sessionKey keychain.SingleKeyECDH,
 
 		err = n.cfg.DB.CreateClientSession(dbClientSession)
 		if err != nil {
-			return fmt.Errorf("unable to persist ClientSession: %v",
+			return fmt.Errorf("unable to persist ClientSession: %w",
 				err)
 		}
 

watchtower/wtclient/session_queue.go

@@ -527,7 +527,7 @@ func (q *sessionQueue) nextStateUpdate() (*wtwire.StateUpdate, bool,
 		hint, encBlob, err := task.craftSessionPayload(q.cfg.Signer)
 		if err != nil {
 			// TODO(conner): mark will not send
-			err := fmt.Errorf("unable to craft session payload: %v",
+			err := fmt.Errorf("unable to craft session payload: %w",
 				err)
 			return nil, false, wtdb.BackupID{}, err
 		}
@@ -665,7 +665,7 @@ func (q *sessionQueue) sendStateUpdate(conn wtserver.Peer,
 	switch {
 	case err == wtdb.ErrUnallocatedLastApplied:
 		// TODO(conner): borked watchtower
-		err = fmt.Errorf("unable to ack seqnum=%d: %v",
+		err = fmt.Errorf("unable to ack seqnum=%d: %w",
 			stateUpdate.SeqNum, err)
 		q.log.Errorf("SessionQueue(%v) failed to ack update: %v",
 			q.ID(), err)
@@ -673,14 +673,14 @@ func (q *sessionQueue) sendStateUpdate(conn wtserver.Peer,
 
 	case err == wtdb.ErrLastAppliedReversion:
 		// TODO(conner): borked watchtower
-		err = fmt.Errorf("unable to ack seqnum=%d: %v",
+		err = fmt.Errorf("unable to ack seqnum=%d: %w",
 			stateUpdate.SeqNum, err)
 		q.log.Errorf("SessionQueue(%s) failed to ack update: %v",
 			q.ID(), err)
 		return err
 
 	case err != nil:
-		err = fmt.Errorf("unable to ack seqnum=%d: %v",
+		err = fmt.Errorf("unable to ack seqnum=%d: %w",
 			stateUpdate.SeqNum, err)
 		q.log.Errorf("SessionQueue(%s) failed to ack update: %v",
 			q.ID(), err)

zpay32/amountunits.go

@@ -136,7 +136,7 @@ func encodeAmount(msat lnwire.MilliSatoshi) (string, error) {
 	// Should always be expressible in pico BTC.
 	pico, err := fromMSat['p'](msat)
 	if err != nil {
-		return "", fmt.Errorf("unable to express %d msat as pBTC: %v",
+		return "", fmt.Errorf("unable to express %d msat as pBTC: %w",
 			msat, err)
 	}
 	shortened := strconv.FormatUint(pico, 10) + "p"