op-chain-ops: move top level stuff to ether package (#3743)

Moves the previously top level files to a new
package called `ether` that is responsible for
doing the legacy eth migration.

The OVM_ETH ERC20 token representation of ETH
will be migrated to actual ETH that is in the
storage trie.

This makes the system eth equiavalent.

op-chain-ops/Makefile

 surgery:
-	go build -o ./surgery ./cmd/main.go
+	go build -o ./surgery ./cmd/surgery/main.go
 
 test:
 	go test ./...

op-chain-ops/cmd/main.go

-package main
-
-import (
-	"os"
-	"strings"
-
-	ops "github.com/ethereum-optimism/optimism/op-chain-ops"
-	"github.com/ethereum/go-ethereum/log"
-	"github.com/mattn/go-isatty"
-	"github.com/urfave/cli/v2"
-)
-
-func main() {
-	log.Root().SetHandler(log.StreamHandler(os.Stderr, log.TerminalFormat(isatty.IsTerminal(os.Stderr.Fd()))))
-
-	app := &cli.App{
-		Name:  "surgery",
-		Usage: "migrates data from v0 to Bedrock",
-		Commands: []*cli.Command{
-			{
-				Name:  "dump-addresses",
-				Usage: "dumps addresses from OVM ETH",
-				Flags: []cli.Flag{
-					&cli.StringFlag{
-						Name:     "out-file",
-						Aliases:  []string{"o"},
-						Usage:    "file to write addresses to",
-						Required: true,
-					},
-				},
-				Action: dumpAddressesAction,
-			},
-			{
-				Name:  "migrate",
-				Usage: "migrates state in OVM ETH",
-				Flags: []cli.Flag{
-					&cli.StringFlag{
-						Name:     "genesis-file",
-						Aliases:  []string{"g"},
-						Usage:    "path to a genesis file",
-						Required: true,
-					},
-					&cli.StringFlag{
-						Name:     "out-dir",
-						Aliases:  []string{"o"},
-						Usage:    "path to output directory",
-						Required: true,
-					},
-					&cli.StringFlag{
-						Name:     "address-lists",
-						Aliases:  []string{"a"},
-						Usage:    "comma-separated list of address files to read",
-						Required: true,
-					},
-					&cli.StringFlag{
-						Name:     "allowance-lists",
-						Aliases:  []string{"l"},
-						Usage:    "comma-separated list of allowance lists to read",
-						Required: true,
-					},
-					&cli.IntFlag{
-						Name:     "chain-id",
-						Usage:    "chain ID",
-						Value:    1,
-						Required: false,
-					},
-					&cli.IntFlag{
-						Name:     "leveldb-cache-size-mb",
-						Usage:    "leveldb cache size in MB",
-						Value:    16,
-						Required: false,
-					},
-					&cli.IntFlag{
-						Name:     "leveldb-file-handles",
-						Usage:    "leveldb file handles",
-						Value:    16,
-						Required: false,
-					},
-				},
-				Action: migrateAction,
-			},
-		},
-		Flags: []cli.Flag{
-			&cli.StringFlag{
-				Name:     "data-dir",
-				Aliases:  []string{"d"},
-				Usage:    "data directory to read",
-				Required: true,
-			},
-		},
-	}
-
-	if err := app.Run(os.Args); err != nil {
-		log.Crit("error in migration", "err", err)
-	}
-}
-
-func dumpAddressesAction(cliCtx *cli.Context) error {
-	dataDir := cliCtx.String("data-dir")
-	outFile := cliCtx.String("out-file")
-	return ops.DumpAddresses(dataDir, outFile)
-}
-
-func migrateAction(cliCtx *cli.Context) error {
-	dataDir := cliCtx.String("data-dir")
-	outDir := cliCtx.String("out-dir")
-	genesisPath := cliCtx.String("genesis-file")
-	addressLists := strings.Split(cliCtx.String("address-lists"), ",")
-	allowanceLists := strings.Split(cliCtx.String("allowance-lists"), ",")
-	chainID := cliCtx.Int("chain-id")
-	levelDBCacheSize := cliCtx.Int("leveldb-cache-size-mb")
-	levelDBHandles := cliCtx.Int("leveldb-file-handles")
-
-	genesis, err := ops.ReadGenesisFromFile(genesisPath)
-	if err != nil {
-		return err
-	}
-
-	return ops.Migrate(dataDir, outDir, genesis, addressLists, allowanceLists, chainID, levelDBCacheSize, levelDBHandles)
-}

op-chain-ops/addresses.go → op-chain-ops/ether/addresses.go

-package state_surgery
+package ether
 
 import (
 	"bufio"

op-chain-ops/cli.go → op-chain-ops/ether/cli.go

-package state_surgery
+package ether
 
 import (
 	"bytes"

op-chain-ops/db.go → op-chain-ops/ether/db.go

-package state_surgery
+package ether
 
 import (
 	"path/filepath"

op-chain-ops/genesis.go → op-chain-ops/ether/genesis.go

-package state_surgery
+package ether
 
 import (
 	"encoding/json"

op-chain-ops/params.go → op-chain-ops/ether/params.go

-package state_surgery
+package ether
 
 import (
 	"math/big"

op-chain-ops/storage.go → op-chain-ops/ether/storage.go

-package state_surgery
+package ether
 
 import (
 	"github.com/ethereum/go-ethereum/common"

op-chain-ops/util.go → op-chain-ops/ether/util.go

-package state_surgery
+package ether
 
 import (
 	"fmt"