mirror of
https://github.com/wealdtech/ethdo.git
synced 2026-01-08 05:34:01 -05:00
87 lines
3.0 KiB
Go
87 lines
3.0 KiB
Go
// Copyright © 2020 Weald Technology Trading
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package cmd
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import (
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"context"
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"fmt"
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"os"
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"time"
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eth2client "github.com/attestantio/go-eth2-client"
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spec "github.com/attestantio/go-eth2-client/spec/phase0"
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"github.com/spf13/cobra"
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"github.com/spf13/viper"
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"github.com/wealdtech/ethdo/util"
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)
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var chainInfoCmd = &cobra.Command{
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Use: "info",
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Short: "Obtain information about a chain",
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Long: `Obtain information about a chain. For example:
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ethdo chain info
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In quiet mode this will return 0 if the chain information can be obtained, otherwise 1.`,
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Run: func(cmd *cobra.Command, args []string) {
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ctx := context.Background()
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eth2Client, err := util.ConnectToBeaconNode(ctx, viper.GetString("connection"), viper.GetDuration("timeout"), viper.GetBool("allow-insecure-connections"))
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errCheck(err, "Failed to connect to Ethereum 2 beacon node")
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config, err := eth2Client.(eth2client.SpecProvider).Spec(ctx)
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errCheck(err, "Failed to obtain beacon chain specification")
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genesis, err := eth2Client.(eth2client.GenesisProvider).Genesis(ctx)
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errCheck(err, "Failed to obtain beacon chain genesis")
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if quiet {
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os.Exit(_exitSuccess)
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}
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if genesis.GenesisTime.Unix() == 0 {
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fmt.Println("Genesis time: undefined")
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} else {
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fmt.Printf("Genesis time: %s\n", genesis.GenesisTime.Format(time.UnixDate))
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outputIf(verbose, fmt.Sprintf("Genesis timestamp: %v", genesis.GenesisTime.Unix()))
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}
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fmt.Printf("Genesis validators root: %#x\n", genesis.GenesisValidatorsRoot)
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fmt.Printf("Genesis fork version: %#x\n", config["GENESIS_FORK_VERSION"].([]byte))
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fmt.Printf("Seconds per slot: %d\n", int(config["SECONDS_PER_SLOT"].(time.Duration).Seconds()))
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fmt.Printf("Slots per epoch: %d\n", config["SLOTS_PER_EPOCH"].(uint64))
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os.Exit(_exitSuccess)
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},
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}
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func init() {
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chainCmd.AddCommand(chainInfoCmd)
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chainFlags(chainInfoCmd)
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}
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func timestampToSlot(genesis time.Time, timestamp time.Time, secondsPerSlot time.Duration) spec.Slot {
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if timestamp.Unix() < genesis.Unix() {
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return 0
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}
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return spec.Slot(uint64(timestamp.Unix()-genesis.Unix()) / uint64(secondsPerSlot.Seconds()))
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}
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func slotToTimestamp(genesis time.Time, slot spec.Slot, slotDuration time.Duration) int64 {
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return genesis.Unix() + int64(slot)*int64(slotDuration.Seconds())
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}
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func epochToTimestamp(genesis time.Time, slot spec.Slot, slotDuration time.Duration, slotsPerEpoch uint64) int64 {
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return genesis.Unix() + int64(slot)*int64(slotDuration.Seconds())*int64(slotsPerEpoch)
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}
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