op-deployer: Add support for inspecting l2 semvers (#12577)

* op-deployer: Add support for inspecting l2 semvers

* goimports

* add factory targets

op-chain-ops/script/script.go

@@ -440,6 +440,11 @@ func (h *Host) HasPrecompileOverride(addr common.Address) bool {
 	return ok
 }
 
+// GetCode returns the code of an account from the state.
+func (h *Host) GetCode(addr common.Address) []byte {
+	return h.state.GetCode(addr)
+}
+
 // onEnter is a trace-hook, which we use to apply changes to the state-DB, to simulate isolated broadcast calls,
 // for better gas estimation of the exact broadcast call execution.
 func (h *Host) onEnter(depth int, typ byte, from common.Address, to common.Address, input []byte, gas uint64, value *big.Int) {

op-deployer/pkg/deployer/inspect/flags.go

@@ -61,6 +61,14 @@ var Commands = []*cli.Command{
 		Action:    DeployConfigCLI,
 		Flags:     Flags,
 	},
+	{
+		Name:      "l2-semvers",
+		Usage:     "outputs the semvers for all L2 chains",
+		Args:      true,
+		ArgsUsage: "<l2-chain-id>",
+		Action:    L2SemversCLI,
+		Flags:     Flags,
+	},
 }
 
 type cliConfig struct {

op-deployer/pkg/deployer/inspect/semvers.go

+package inspect
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"math/big"
+	"regexp"
+	"time"
+
+	"github.com/ethereum-optimism/optimism/op-chain-ops/script"
+
+	"github.com/ethereum-optimism/optimism/op-deployer/pkg/deployer/broadcaster"
+	"github.com/ethereum-optimism/optimism/op-deployer/pkg/deployer/pipeline"
+	"github.com/ethereum-optimism/optimism/op-service/ioutil"
+	"github.com/ethereum-optimism/optimism/op-service/jsonutil"
+	oplog "github.com/ethereum-optimism/optimism/op-service/log"
+	"github.com/ethereum-optimism/optimism/op-service/predeploys"
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/holiman/uint256"
+	"github.com/urfave/cli/v2"
+)
+
+var versionSelector = []byte{0x54, 0xfd, 0x4d, 0x50}
+
+func L2SemversCLI(cliCtx *cli.Context) error {
+	cliCfg, err := readConfig(cliCtx)
+	if err != nil {
+		return err
+	}
+
+	ctx, cancel := context.WithTimeout(cliCtx.Context, time.Minute)
+	defer cancel()
+
+	logCfg := oplog.ReadCLIConfig(cliCtx)
+	l := oplog.NewLogger(oplog.AppOut(cliCtx), logCfg)
+	oplog.SetGlobalLogHandler(l.Handler())
+
+	globalState, err := pipeline.ReadState(cliCfg.Workdir)
+	if err != nil {
+		return fmt.Errorf("failed to read intent: %w", err)
+	}
+	chainState, err := globalState.Chain(cliCfg.ChainID)
+	if err != nil {
+		return fmt.Errorf("failed to find chain state: %w", err)
+	}
+
+	intent := globalState.AppliedIntent
+	if intent == nil {
+		return fmt.Errorf("can only run this command following a full apply")
+	}
+	if chainState.Allocs == nil {
+		return fmt.Errorf("chain state does not have allocs")
+	}
+
+	artifactsFS, cleanup, err := pipeline.DownloadArtifacts(ctx, intent.L2ContractsLocator, pipeline.LogProgressor(l))
+	if err != nil {
+		return fmt.Errorf("failed to download L2 artifacts: %w", err)
+	}
+	defer func() {
+		if err := cleanup(); err != nil {
+			l.Warn("failed to clean up L2 artifacts", "err", err)
+		}
+	}()
+
+	host, err := pipeline.DefaultScriptHost(
+		broadcaster.NoopBroadcaster(),
+		l,
+		common.Address{19: 0x01},
+		artifactsFS,
+		0,
+	)
+	if err != nil {
+		return fmt.Errorf("failed to create script host: %w", err)
+	}
+	host.ImportState(chainState.Allocs.Data)
+
+	addr := common.Address{19: 0x01}
+
+	type contractToCheck struct {
+		Address common.Address
+		Name    string
+	}
+
+	contractsOutput := make(map[string]string)
+
+	// The gov token and the proxy admin do not have semvers.
+	contracts := []contractToCheck{
+		{predeploys.L2ToL1MessagePasserAddr, "L2ToL1MessagePasser"},
+		{predeploys.DeployerWhitelistAddr, "DeployerWhitelist"},
+		{predeploys.WETHAddr, "WETH"},
+		{predeploys.L2CrossDomainMessengerAddr, "L2CrossDomainMessenger"},
+		{predeploys.L2StandardBridgeAddr, "L2StandardBridge"},
+		{predeploys.SequencerFeeVaultAddr, "SequencerFeeVault"},
+		{predeploys.OptimismMintableERC20FactoryAddr, "OptimismMintableERC20Factory"},
+		{predeploys.L1BlockNumberAddr, "L1BlockNumber"},
+		{predeploys.GasPriceOracleAddr, "GasPriceOracle"},
+		{predeploys.L1BlockAddr, "L1Block"},
+		{predeploys.LegacyMessagePasserAddr, "LegacyMessagePasser"},
+		{predeploys.L2ERC721BridgeAddr, "L2ERC721Bridge"},
+		{predeploys.OptimismMintableERC721FactoryAddr, "OptimismMintableERC721Factory"},
+		{predeploys.BaseFeeVaultAddr, "BaseFeeVault"},
+		{predeploys.L1FeeVaultAddr, "L1FeeVault"},
+		{predeploys.SchemaRegistryAddr, "SchemaRegistry"},
+		{predeploys.EASAddr, "EAS"},
+		{predeploys.WETHAddr, "WETH"},
+	}
+	for _, contract := range contracts {
+		data, _, err := host.Call(
+			addr,
+			contract.Address,
+			bytes.Clone(versionSelector),
+			1_000_000_000,
+			uint256.NewInt(0),
+		)
+		if err != nil {
+			return fmt.Errorf("failed to call version on %s: %w", contract.Name, err)
+		}
+
+		// The second 32 bytes contain the length of the string
+		length := new(big.Int).SetBytes(data[32:64]).Int64()
+		// Start of the string data (after offset and length)
+		stringStart := 64
+		stringEnd := int64(stringStart) + length
+
+		// Bounds check
+		if stringEnd > int64(len(data)) {
+			return fmt.Errorf("string data out of bounds")
+		}
+
+		contractsOutput[contract.Name] = string(data[stringStart:stringEnd])
+	}
+
+	erc20Semver, err := findSemverBytecode(host, predeploys.OptimismMintableERC20FactoryAddr)
+	if err == nil {
+		contractsOutput["OptimismMintableERC20"] = erc20Semver
+	} else {
+		l.Warn("failed to find semver for OptimismMintableERC20", "err", err)
+	}
+
+	erc721Semver, err := findSemverBytecode(host, predeploys.OptimismMintableERC721FactoryAddr)
+	if err == nil {
+		contractsOutput["OptimismMintableERC721"] = erc721Semver
+	} else {
+		l.Warn("failed to find semver for OptimismMintableERC721", "err", err)
+	}
+
+	if err := jsonutil.WriteJSON(contractsOutput, ioutil.ToStdOutOrFileOrNoop(cliCfg.Outfile, 0o666)); err != nil {
+		return fmt.Errorf("failed to write rollup config: %w", err)
+	}
+
+	return nil
+}
+
+const patternLen = 24
+
+var semverRegexp = regexp.MustCompile(`^(\d+\.\d+\.\d+([\w.+\-]*))\x00`)
+var codeAddr = common.HexToAddress("0xc0d3c0d3c0d3c0d3c0d3c0d3c0d3c0d3c0d30000")
+
+func findSemverBytecode(host *script.Host, proxyAddr common.Address) (string, error) {
+	var implAddr common.Address
+	copy(implAddr[:], codeAddr[:])
+	copy(implAddr[18:], proxyAddr[18:])
+
+	bytecode := host.GetCode(implAddr)
+	if len(bytecode) == 0 {
+		return "", fmt.Errorf("failed to get bytecode for factory")
+	}
+
+	versionSelectorIndex := bytes.LastIndex(bytecode, versionSelector)
+	if versionSelectorIndex == -1 {
+		return "", fmt.Errorf("failed to find semver selector in factory bytecode")
+	}
+
+	for i := versionSelectorIndex; i < len(bytecode); i++ {
+		if bytecode[i] == 0 {
+			continue
+		}
+
+		if i+patternLen > len(bytecode) {
+			break
+		}
+
+		slice := bytecode[i : i+patternLen]
+		if slice[0] == 0x00 {
+			continue
+		}
+
+		matches := semverRegexp.FindSubmatch(slice)
+		if len(matches) == 0 {
+			continue
+		}
+
+		return string(matches[1]), nil
+	}
+
+	return "", fmt.Errorf("failed to find semver in factory bytecode")
+}

op-deployer/pkg/deployer/opcm/standard.go

@@ -119,7 +119,7 @@ func ManagerOwnerAddrFor(chainID uint64) (common.Address, error) {
 func StandardArtifactsURLForTag(tag string) (*url.URL, error) {
 	switch tag {
 	case "op-contracts/v1.6.0":
-		return url.Parse(standardArtifactsURL("5ff7fb7f5d3ff30d165fef6cec22c7af8eceb102dd964034762cf988a6678d51"))
+		return url.Parse(standardArtifactsURL("ee07c78c3d8d4cd8f7a933c050f5afeebaa281b57b226cc6f092b19de2a8d61f"))
 	case "op-contracts/v1.7.0-beta.1+l2-contracts":
 		return url.Parse(standardArtifactsURL("b0fb1f6f674519d637cff39a22187a5993d7f81a6d7b7be6507a0b50a5e38597"))
 	default:

op-deployer/pkg/deployer/pipeline/downloader.go

@@ -15,6 +15,8 @@ import (
 	"strings"
 	"time"
 
+	"github.com/ethereum/go-ethereum/log"
+
 	"github.com/ethereum-optimism/optimism/op-deployer/pkg/deployer/opcm"
 
 	"github.com/ethereum-optimism/optimism/op-chain-ops/foundry"
@@ -30,6 +32,12 @@ type CleanupFunc func() error
 
 var noopCleanup = func() error { return nil }
 
+func LogProgressor(lgr log.Logger) DownloadProgressor {
+	return func(curr, total int64) {
+		lgr.Info("artifacts download progress", "current", curr, "total", total)
+	}
+}
+
 func DownloadArtifacts(ctx context.Context, loc *opcm.ArtifactsLocator, progress DownloadProgressor) (foundry.StatDirFs, CleanupFunc, error) {
 	var u *url.URL
 	var err error