Merge pull request #44 from ethereum-optimism/harry/genesis_applier

feat(genesis-applier): create genesisapplier package

genesisapplier/genesisapplier.go

@@ -0,0 +1,33 @@
+package genesisapplier
+
+import (
+	"encoding/json"
+	"fmt"
+	"math/big"
+
+	"github.com/ethereum/go-ethereum/core"
+)
+
+type Config struct {
+	ChainID *big.Int
+}
+
+func UpdateGenesisWithConfig(genesisJson []byte, config Config) ([]byte, error) {
+	var genesis core.Genesis
+
+	err := json.Unmarshal(genesisJson, &genesis)
+	if err != nil {
+		return nil, fmt.Errorf("unable to parse genesis json")
+	}
+
+	if config.ChainID != nil && genesis.Config.ChainID != config.ChainID {
+		genesis.Config.ChainID = config.ChainID
+	}
+
+	result, err := json.Marshal(genesis)
+	if err != nil {
+		return nil, fmt.Errorf("error marshaling genesis")
+	}
+
+	return result, nil
+}

go.mod

@@ -10,19 +10,55 @@ require (
 )
 
 require (
+	github.com/DataDog/zstd v1.5.2 // indirect
 	github.com/Microsoft/go-winio v0.6.1 // indirect
+	github.com/VictoriaMetrics/fastcache v1.12.1 // indirect
+	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/bits-and-blooms/bitset v1.10.0 // indirect
+	github.com/btcsuite/btcd/btcec/v2 v2.2.0 // indirect
+	github.com/cespare/xxhash/v2 v2.2.0 // indirect
+	github.com/cockroachdb/errors v1.11.1 // indirect
+	github.com/cockroachdb/logtags v0.0.0-20230118201751-21c54148d20b // indirect
+	github.com/cockroachdb/pebble v0.0.0-20231018212520-f6cde3fc2fa4 // indirect
+	github.com/cockroachdb/redact v1.1.5 // indirect
+	github.com/cockroachdb/tokenbucket v0.0.0-20230807174530-cc333fc44b06 // indirect
+	github.com/consensys/bavard v0.1.13 // indirect
+	github.com/consensys/gnark-crypto v0.12.1 // indirect
 	github.com/cpuguy83/go-md2man/v2 v2.0.2 // indirect
+	github.com/crate-crypto/go-ipa v0.0.0-20231025140028-3c0104f4b233 // indirect
 	github.com/crate-crypto/go-kzg-4844 v1.0.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/deckarep/golang-set/v2 v2.1.0 // indirect
+	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.3.0 // indirect
 	github.com/ethereum-optimism/superchain-registry/superchain v0.0.0-20240614103325-d8902381f5d8 // indirect
 	github.com/ethereum/c-kzg-4844 v1.0.0 // indirect
+	github.com/gballet/go-verkle v0.1.1-0.20231031103413-a67434b50f46 // indirect
+	github.com/getsentry/sentry-go v0.18.0 // indirect
 	github.com/go-ole/go-ole v1.3.0 // indirect
+	github.com/gofrs/flock v0.8.1 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/golang/snappy v0.0.5-0.20220116011046-fa5810519dcb // indirect
 	github.com/gorilla/websocket v1.5.1 // indirect
+	github.com/holiman/bloomfilter/v2 v2.0.3 // indirect
 	github.com/holiman/uint256 v1.2.4 // indirect
+	github.com/klauspost/compress v1.17.8 // indirect
+	github.com/kr/pretty v0.3.1 // indirect
+	github.com/kr/text v0.2.0 // indirect
+	github.com/mattn/go-runewidth v0.0.14 // indirect
+	github.com/mmcloughlin/addchain v0.4.0 // indirect
+	github.com/olekukonko/tablewriter v0.0.5 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/prometheus/client_golang v1.19.1 // indirect
+	github.com/prometheus/client_model v0.6.1 // indirect
+	github.com/prometheus/common v0.48.0 // indirect
+	github.com/prometheus/procfs v0.12.0 // indirect
+	github.com/rivo/uniseg v0.4.3 // indirect
+	github.com/rogpeppe/go-internal v1.10.0 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
 	github.com/shirou/gopsutil v3.21.11+incompatible // indirect
+	github.com/supranational/blst v0.3.11 // indirect
+	github.com/syndtr/goleveldb v1.0.1-0.20220614013038-64ee5596c38a // indirect
 	github.com/tklauser/go-sysconf v0.3.12 // indirect
 	github.com/tklauser/numcpus v0.6.1 // indirect
 	github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 // indirect
@@ -34,8 +70,13 @@ require (
 	golang.org/x/sync v0.7.0 // indirect
 	golang.org/x/sys v0.20.0 // indirect
 	golang.org/x/term v0.20.0 // indirect
+	golang.org/x/text v0.15.0 // indirect
 	golang.org/x/tools v0.21.0 // indirect
+	google.golang.org/protobuf v1.34.1 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
+	rsc.io/tmplfunc v0.0.3 // indirect
 )
 
 replace github.com/ethereum/go-ethereum => github.com/ethereum-optimism/op-geth v1.101315.3-rc.1
+
+replace github.com/crate-crypto/go-kzg-4844 v1.0.0 => github.com/crate-crypto/go-kzg-4844 v0.7.0