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uprendisuprendis
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add command for exporting EVM keys
1 parent ada20db commit b387fea

2 files changed

Lines changed: 52 additions & 0 deletions

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‎cmd/opera/launcher/chaincmd.go‎

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Original file line numberDiff line numberDiff line change
@@ -91,6 +91,20 @@ Optional second and third arguments control the first and
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last epoch to write.
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Pass dry-run instead of filename for calculation of hashes without exporting data.
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EVM export mode is configured with --export.evm.mode.
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`,
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},
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{
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Name: "evm-keys",
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Usage: "Export EVM node keys",
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ArgsUsage: "<directory>",
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Action: utils.MigrateFlags(exportEvmKeys),
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Flags: []cli.Flag{
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DataDirFlag,
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},
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Description: `
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opera export evm-keys
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Requires a first argument of the DB directory to write to.
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`,
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},
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},

‎cmd/opera/launcher/export.go‎

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@@ -10,11 +10,14 @@ import (
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"github.com/Fantom-foundation/lachesis-base/hash"
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"github.com/Fantom-foundation/lachesis-base/inter/idx"
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"github.com/Fantom-foundation/lachesis-base/kvdb/batched"
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"github.com/Fantom-foundation/lachesis-base/kvdb/pebble"
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"github.com/ethereum/go-ethereum/cmd/utils"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/log"
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"github.com/ethereum/go-ethereum/rlp"
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"github.com/status-im/keycard-go/hexutils"
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"github.com/syndtr/goleveldb/leveldb/opt"
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"gopkg.in/urfave/cli.v1"
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"github.com/Fantom-foundation/go-opera/gossip"
@@ -114,3 +117,38 @@ func exportTo(w io.Writer, gdb *gossip.Store, from, to idx.Epoch) (err error) {
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return
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}
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func exportEvmKeys(ctx *cli.Context) error {
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if len(ctx.Args()) < 1 {
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utils.Fatalf("This command requires an argument.")
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}
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cfg := makeAllConfigs(ctx)
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rawDbs := makeDirectDBsProducer(cfg)
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gdb := makeGossipStore(rawDbs, cfg)
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defer gdb.Close()
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fn := ctx.Args().First()
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keysDB_, err := pebble.New(fn, 1024*opt.MiB, utils.MakeDatabaseHandles()/2, nil, nil)
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if err != nil {
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return err
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}
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keysDB := batched.Wrap(keysDB_)
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defer keysDB.Close()
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it := gdb.EvmStore().EvmDb.NewIterator(nil, nil)
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// iterate only over MPT data
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it = mptAndPreimageIterator{it}
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defer it.Release()
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log.Info("Exporting EVM keys", "dir", fn)
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for it.Next() {
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if err := keysDB.Put(it.Key(), []byte{0}); err != nil {
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return err
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}
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}
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log.Info("Exported EVM keys", "dir", fn)
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return nil
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}

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