67 lines
1.6 KiB
Go
67 lines
1.6 KiB
Go
package commands
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import (
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"fmt"
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"strconv"
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"github.com/pkg/errors"
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"github.com/spf13/cobra"
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"github.com/cosmos/cosmos-sdk/client/context"
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"github.com/cosmos/cosmos-sdk/examples/democoin/x/pow"
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"github.com/cosmos/cosmos-sdk/wire"
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authcmd "github.com/cosmos/cosmos-sdk/x/auth/commands"
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)
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// command to mine some pow!
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func MineCmd(cdc *wire.Codec) *cobra.Command {
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return &cobra.Command{
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Use: "mine [difficulty] [count] [nonce] [solution]",
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Short: "Mine some coins with proof-of-work!",
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RunE: func(cmd *cobra.Command, args []string) error {
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if len(args) != 4 {
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return errors.New("You must provide a difficulty, a count, a solution, and a nonce (in that order)")
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}
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// get from address and parse arguments
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ctx := context.NewCoreContextFromViper().WithDecoder(authcmd.GetAccountDecoder(cdc))
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from, err := ctx.GetFromAddress()
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if err != nil {
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return err
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}
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difficulty, err := strconv.ParseUint(args[0], 0, 64)
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if err != nil {
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return err
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}
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count, err := strconv.ParseUint(args[1], 0, 64)
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if err != nil {
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return err
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}
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nonce, err := strconv.ParseUint(args[2], 0, 64)
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if err != nil {
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return err
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}
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solution := []byte(args[3])
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msg := pow.NewMsgMine(from, difficulty, count, nonce, solution)
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// get account name
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name := ctx.FromAddressName
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// build and sign the transaction, then broadcast to Tendermint
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res, err := ctx.EnsureSignBuildBroadcast(name, msg, cdc)
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if err != nil {
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return err
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}
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fmt.Printf("Committed at block %d. Hash: %s\n", res.Height, res.Hash.String())
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return nil
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},
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}
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}
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