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https://github.com/OffchainLabs/prysm.git
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774b9a7159
* Migrate Prysm repo to Offchain Labs organization ahead of Pectra upgrade v6 * Replace prysmaticlabs with OffchainLabs on general markdowns * Update mock * Gazelle and add mock.go to excluded generated mock file
49 lines
1018 B
Go
49 lines
1018 B
Go
package main
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import (
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"context"
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"fmt"
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"os"
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"github.com/OffchainLabs/prysm/v6/beacon-chain/db/kv"
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"github.com/OffchainLabs/prysm/v6/io/file"
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)
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// A basic tool to extract genesis.ssz from existing beaconchain.db.
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// ex:
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//
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// bazel run //tools/interop/export-genesis:export-genesis -- /tmp/data/beaconchaindata /tmp/genesis.ssz
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func main() {
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if len(os.Args) < 3 {
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fmt.Println("Usage: ./main /path/to/datadir /path/to/output/genesis.ssz")
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os.Exit(1)
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}
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fmt.Printf("Reading db at %s and writing ssz output to %s.\n", os.Args[1], os.Args[2])
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d, err := kv.NewKVStore(context.Background(), os.Args[1])
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if err != nil {
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panic(err)
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}
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defer func() {
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if err := d.Close(); err != nil {
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panic(err)
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}
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}()
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gs, err := d.GenesisState(context.Background())
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if err != nil {
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panic(err)
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}
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if gs == nil || gs.IsNil() {
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panic("nil genesis state")
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}
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b, err := gs.MarshalSSZ()
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if err != nil {
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panic(err)
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}
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if err := file.WriteFile(os.Args[2], b); err != nil {
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panic(err)
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}
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fmt.Println("done")
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}
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