era,utils,p2p,triedb: replace fmt.Errorf() with errors.New() if no param required

cmd/era/main.go

@@ -18,6 +18,7 @@ package main
 
 import (
 	"encoding/json"
+	"errors"
 	"fmt"
 	"math/big"
 	"os"
@@ -182,7 +183,7 @@ func open(ctx *cli.Context, epoch uint64) (*era.Era, error) {
 // that the accumulator matches the expected value.
 func verify(ctx *cli.Context) error {
 	if ctx.Args().Len() != 1 {
-		return fmt.Errorf("missing accumulators file")
+		return errors.New("missing accumulators file")
 	}
 
 	roots, err := readHashes(ctx.Args().First())
@@ -203,7 +204,7 @@ func verify(ctx *cli.Context) error {
 	}
 
 	if len(entries) != len(roots) {
-		return fmt.Errorf("number of era1 files should match the number of accumulator hashes")
+		return errors.New("number of era1 files should match the number of accumulator hashes")
 	}
 
 	// Verify each epoch matches the expected root.
@@ -308,7 +309,7 @@ func checkAccumulator(e *era.Era) error {
 func readHashes(f string) ([]common.Hash, error) {
 	b, err := os.ReadFile(f)
 	if err != nil {
-		return nil, fmt.Errorf("unable to open accumulators file")
+		return nil, errors.New("unable to open accumulators file")
 	}
 	s := strings.Split(string(b), "\n")
 	// Remove empty last element, if present.

cmd/geth/chaincmd.go

@@ -444,7 +444,7 @@ func importHistory(ctx *cli.Context) error {
 			return fmt.Errorf("no era1 files found in %s", dir)
 		}
 		if len(networks) > 1 {
-			return fmt.Errorf("multiple networks found, use a network flag to specify desired network")
+			return errors.New("multiple networks found, use a network flag to specify desired network")
 		}
 		network = networks[0]
 	}

cmd/utils/cmd.go

@@ -245,7 +245,7 @@ func readList(filename string) ([]string, error) {
 // starting from genesis.
 func ImportHistory(chain *core.BlockChain, db ethdb.Database, dir string, network string) error {
 	if chain.CurrentSnapBlock().Number.BitLen() != 0 {
-		return fmt.Errorf("history import only supported when starting from genesis")
+		return errors.New("history import only supported when starting from genesis")
 	}
 	entries, err := era.ReadDir(dir, network)
 	if err != nil {

core/txpool/validation.go

@@ -18,6 +18,7 @@ package txpool
 
 import (
 	"crypto/sha256"
+	"errors"
 	"fmt"
 	"math/big"
 
@@ -120,13 +121,13 @@ func ValidateTransaction(tx *types.Transaction, head *types.Header, signer types
 		}
 		sidecar := tx.BlobTxSidecar()
 		if sidecar == nil {
-			return fmt.Errorf("missing sidecar in blob transaction")
+			return errors.New("missing sidecar in blob transaction")
 		}
 		// Ensure the number of items in the blob transaction and various side
 		// data match up before doing any expensive validations
 		hashes := tx.BlobHashes()
 		if len(hashes) == 0 {
-			return fmt.Errorf("blobless blob transaction")
+			return errors.New("blobless blob transaction")
 		}
 		if len(hashes) > params.MaxBlobGasPerBlock/params.BlobTxBlobGasPerBlob {
 			return fmt.Errorf("too many blobs in transaction: have %d, permitted %d", len(hashes), params.MaxBlobGasPerBlock/params.BlobTxBlobGasPerBlob)

internal/era/accumulator.go

@@ -17,6 +17,7 @@
 package era
 
 import (
+	"errors"
 	"fmt"
 	"math/big"
 
@@ -28,7 +29,7 @@ import (
 // accumulator of header records.
 func ComputeAccumulator(hashes []common.Hash, tds []*big.Int) (common.Hash, error) {
 	if len(hashes) != len(tds) {
-		return common.Hash{}, fmt.Errorf("must have equal number hashes as td values")
+		return common.Hash{}, errors.New("must have equal number hashes as td values")
 	}
 	if len(hashes) > MaxEra1Size {
 		return common.Hash{}, fmt.Errorf("too many records: have %d, max %d", len(hashes), MaxEra1Size)

internal/era/builder.go

@@ -18,6 +18,7 @@ package era
 import (
 	"bytes"
 	"encoding/binary"
+	"errors"
 	"fmt"
 	"io"
 	"math/big"
@@ -158,7 +159,7 @@ func (b *Builder) AddRLP(header, body, receipts []byte, number uint64, hash comm
 // corresponding e2store entries.
 func (b *Builder) Finalize() (common.Hash, error) {
 	if b.startNum == nil {
-		return common.Hash{}, fmt.Errorf("finalize called on empty builder")
+		return common.Hash{}, errors.New("finalize called on empty builder")
 	}
 	// Compute accumulator root and write entry.
 	root, err := ComputeAccumulator(b.hashes, b.tds)

internal/era/e2store/e2store.go

@@ -18,6 +18,7 @@ package e2store
 
 import (
 	"encoding/binary"
+	"errors"
 	"fmt"
 	"io"
 )
@@ -160,7 +161,7 @@ func (r *Reader) ReadMetadataAt(off int64) (typ uint16, length uint32, err error
 
 	// Check reserved bytes of header.
 	if b[6] != 0 || b[7] != 0 {
-		return 0, 0, fmt.Errorf("reserved bytes are non-zero")
+		return 0, 0, errors.New("reserved bytes are non-zero")
 	}
 
 	return typ, length, nil

internal/era/e2store/e2store_test.go

@@ -18,7 +18,7 @@ package e2store
 
 import (
 	"bytes"
-	"fmt"
+	"errors"
 	"io"
 	"testing"
 
@@ -92,7 +92,7 @@ func TestDecode(t *testing.T) {
 		},
 		{ // basic invalid decoding
 			have: "ffff000000000001",
-			err:  fmt.Errorf("reserved bytes are non-zero"),
+			err:  errors.New("reserved bytes are non-zero"),
 		},
 		{ // no more entries to read, returns EOF
 			have: "",

internal/era/era.go

@@ -18,6 +18,7 @@ package era
 
 import (
 	"encoding/binary"
+	"errors"
 	"fmt"
 	"io"
 	"math/big"
@@ -127,7 +128,7 @@ func (e *Era) Close() error {
 
 func (e *Era) GetBlockByNumber(num uint64) (*types.Block, error) {
 	if e.m.start > num || e.m.start+e.m.count <= num {
-		return nil, fmt.Errorf("out-of-bounds")
+		return nil, errors.New("out-of-bounds")
 	}
 	off, err := e.readOffset(num)
 	if err != nil {

internal/era/iterator.go

@@ -17,6 +17,7 @@
 package era
 
 import (
+	"errors"
 	"fmt"
 	"io"
 	"math/big"
@@ -61,7 +62,7 @@ func (it *Iterator) Error() error {
 // Block returns the block for the iterator's current position.
 func (it *Iterator) Block() (*types.Block, error) {
 	if it.inner.Header == nil || it.inner.Body == nil {
-		return nil, fmt.Errorf("header and body must be non-nil")
+		return nil, errors.New("header and body must be non-nil")
 	}
 	var (
 		header types.Header

miner/worker.go

@@ -947,7 +947,7 @@ func (w *worker) prepareWork(genParams *generateParams) (*environment, error) {
 	if genParams.parentHash != (common.Hash{}) {
 		block := w.chain.GetBlockByHash(genParams.parentHash)
 		if block == nil {
-			return nil, fmt.Errorf("missing parent")
+			return nil, errors.New("missing parent")
 		}
 		parent = block.Header()
 	}

node/rpcstack.go

@@ -19,6 +19,7 @@ package node
 import (
 	"compress/gzip"
 	"context"
+	"errors"
 	"fmt"
 	"io"
 	"net"
@@ -299,7 +300,7 @@ func (h *httpServer) enableRPC(apis []rpc.API, config httpConfig) error {
 	defer h.mu.Unlock()
 
 	if h.rpcAllowed() {
-		return fmt.Errorf("JSON-RPC over HTTP is already enabled")
+		return errors.New("JSON-RPC over HTTP is already enabled")
 	}
 
 	// Create RPC server and handler.
@@ -335,7 +336,7 @@ func (h *httpServer) enableWS(apis []rpc.API, config wsConfig) error {
 	defer h.mu.Unlock()
 
 	if h.wsAllowed() {
-		return fmt.Errorf("JSON-RPC over WebSocket is already enabled")
+		return errors.New("JSON-RPC over WebSocket is already enabled")
 	}
 	// Create RPC server and handler.
 	srv := rpc.NewServer()

p2p/discover/v4_udp.go

@@ -364,7 +364,7 @@ func (t *UDPv4) RequestENR(n *enode.Node) (*enode.Node, error) {
 		return nil, err
 	}
 	if respN.ID() != n.ID() {
-		return nil, fmt.Errorf("invalid ID in response record")
+		return nil, errors.New("invalid ID in response record")
 	}
 	if respN.Seq() < n.Seq() {
 		return n, nil // response record is older

p2p/discover/v5_udp.go

@@ -442,7 +442,7 @@ func (t *UDPv5) verifyResponseNode(c *callV5, r *enr.Record, distances []uint, s
 		}
 	}
 	if _, ok := seen[node.ID()]; ok {
-		return nil, fmt.Errorf("duplicate record")
+		return nil, errors.New("duplicate record")
 	}
 	seen[node.ID()] = struct{}{}
 	return node, nil

p2p/discover/v5wire/encoding.go

@@ -367,11 +367,11 @@ func (c *Codec) makeHandshakeAuth(toID enode.ID, addr string, challenge *Whoarey
 	// key is part of the ID nonce signature.
 	var remotePubkey = new(ecdsa.PublicKey)
 	if err := challenge.Node.Load((*enode.Secp256k1)(remotePubkey)); err != nil {
-		return nil, nil, fmt.Errorf("can't find secp256k1 key for recipient")
+		return nil, nil, errors.New("can't find secp256k1 key for recipient")
 	}
 	ephkey, err := c.sc.ephemeralKeyGen()
 	if err != nil {
-		return nil, nil, fmt.Errorf("can't generate ephemeral key")
+		return nil, nil, errors.New("can't generate ephemeral key")
 	}
 	ephpubkey := EncodePubkey(&ephkey.PublicKey)
 	auth.pubkey = ephpubkey[:]
@@ -395,7 +395,7 @@ func (c *Codec) makeHandshakeAuth(toID enode.ID, addr string, challenge *Whoarey
 	// Create session keys.
 	sec := deriveKeys(sha256.New, ephkey, remotePubkey, c.localnode.ID(), challenge.Node.ID(), cdata)
 	if sec == nil {
-		return nil, nil, fmt.Errorf("key derivation failed")
+		return nil, nil, errors.New("key derivation failed")
 	}
 	return auth, sec, err
 }

p2p/dnsdisc/client.go

@@ -191,7 +191,7 @@ func (c *Client) resolveEntry(ctx context.Context, domain, hash string) (entry,
 func (c *Client) doResolveEntry(ctx context.Context, domain, hash string) (entry, error) {
 	wantHash, err := b32format.DecodeString(hash)
 	if err != nil {
-		return nil, fmt.Errorf("invalid base32 hash")
+		return nil, errors.New("invalid base32 hash")
 	}
 	name := hash + "." + domain
 	txts, err := c.cfg.Resolver.LookupTXT(ctx, hash+"."+domain)

p2p/dnsdisc/tree.go

@@ -21,6 +21,7 @@ import (
 	"crypto/ecdsa"
 	"encoding/base32"
 	"encoding/base64"
+	"errors"
 	"fmt"
 	"io"
 	"strings"
@@ -341,7 +342,7 @@ func parseLinkEntry(e string) (entry, error) {
 
 func parseLink(e string) (*linkEntry, error) {
 	if !strings.HasPrefix(e, linkPrefix) {
-		return nil, fmt.Errorf("wrong/missing scheme 'enrtree' in URL")
+		return nil, errors.New("wrong/missing scheme 'enrtree' in URL")
 	}
 	e = e[len(linkPrefix):]
 

p2p/enode/idscheme.go

@@ -18,7 +18,7 @@ package enode
 
 import (
 	"crypto/ecdsa"
-	"fmt"
+	"errors"
 	"io"
 
 	"github.com/ethereum/go-ethereum/common/math"
@@ -67,7 +67,7 @@ func (V4ID) Verify(r *enr.Record, sig []byte) error {
 	if err := r.Load(&entry); err != nil {
 		return err
 	} else if len(entry) != 33 {
-		return fmt.Errorf("invalid public key")
+		return errors.New("invalid public key")
 	}
 
 	h := sha3.NewLegacyKeccak256()

p2p/nat/natpmp.go

@@ -17,6 +17,7 @@
 package nat
 
 import (
+	"errors"
 	"fmt"
 	"net"
 	"strings"
@@ -46,7 +47,7 @@ func (n *pmp) ExternalIP() (net.IP, error) {
 
 func (n *pmp) AddMapping(protocol string, extport, intport int, name string, lifetime time.Duration) (uint16, error) {
 	if lifetime <= 0 {
-		return 0, fmt.Errorf("lifetime must not be <= 0")
+		return 0, errors.New("lifetime must not be <= 0")
 	}
 	// Note order of port arguments is switched between our
 	// AddMapping and the client's AddPortMapping.

p2p/simulations/adapters/exec.go

@@ -460,7 +460,7 @@ func startExecNodeStack() (*node.Node, error) {
 	// decode the config
 	confEnv := os.Getenv(envNodeConfig)
 	if confEnv == "" {
-		return nil, fmt.Errorf("missing " + envNodeConfig)
+		return nil, errors.New("missing " + envNodeConfig)
 	}
 	var conf execNodeConfig
 	if err := json.Unmarshal([]byte(confEnv), &conf); err != nil {

signer/core/apitypes/types.go

@@ -708,7 +708,7 @@ func formatPrimitiveValue(encType string, encValue interface{}) (string, error)
 func (t Types) validate() error {
 	for typeKey, typeArr := range t {
 		if len(typeKey) == 0 {
-			return fmt.Errorf("empty type key")
+			return errors.New("empty type key")
 		}
 		for i, typeObj := range typeArr {
 			if len(typeObj.Type) == 0 {

trie/trie_test.go

@@ -556,7 +556,7 @@ func runRandTest(rt randTest) error {
 				checktr.MustUpdate(it.Key, it.Value)
 			}
 			if tr.Hash() != checktr.Hash() {
-				rt[i].err = fmt.Errorf("hash mismatch in opItercheckhash")
+				rt[i].err = errors.New("hash mismatch in opItercheckhash")
 			}
 		case opNodeDiff:
 			var (
@@ -594,19 +594,19 @@ func runRandTest(rt randTest) error {
 				}
 			}
 			if len(insertExp) != len(tr.tracer.inserts) {
-				rt[i].err = fmt.Errorf("insert set mismatch")
+				rt[i].err = errors.New("insert set mismatch")
 			}
 			if len(deleteExp) != len(tr.tracer.deletes) {
-				rt[i].err = fmt.Errorf("delete set mismatch")
+				rt[i].err = errors.New("delete set mismatch")
 			}
 			for insert := range tr.tracer.inserts {
 				if _, present := insertExp[insert]; !present {
-					rt[i].err = fmt.Errorf("missing inserted node")
+					rt[i].err = errors.New("missing inserted node")
 				}
 			}
 			for del := range tr.tracer.deletes {
 				if _, present := deleteExp[del]; !present {
-					rt[i].err = fmt.Errorf("missing deleted node")
+					rt[i].err = errors.New("missing deleted node")
 				}
 			}
 		}

triedb/pathdb/history.go

@@ -215,7 +215,7 @@ func (m *meta) encode() []byte {
 // decode unpacks the meta object from byte stream.
 func (m *meta) decode(blob []byte) error {
 	if len(blob) < 1 {
-		return fmt.Errorf("no version tag")
+		return errors.New("no version tag")
 	}
 	switch blob[0] {
 	case stateHistoryVersion: