2018-02-14 12:53:06 -08:00
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package server
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import (
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"encoding/json"
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"fmt"
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"io/ioutil"
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"github.com/spf13/cobra"
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crypto "github.com/tendermint/go-crypto"
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"github.com/tendermint/go-crypto/keys"
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"github.com/tendermint/go-crypto/keys/words"
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tcmd "github.com/tendermint/tendermint/cmd/tendermint/commands"
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tmtypes "github.com/tendermint/tendermint/types"
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2018-02-21 01:41:35 -08:00
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dbm "github.com/tendermint/tmlibs/db"
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2018-02-14 12:53:06 -08:00
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)
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// InitCmd will initialize all files for tendermint,
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// along with proper app_options.
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// The application can pass in a function to generate
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// proper options. And may want to use GenerateCoinKey
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// to create default account(s).
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func InitCmd(gen GenOptions) *cobra.Command {
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cmd := initCmd{
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gen: gen,
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}
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return &cobra.Command{
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Use: "init",
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Short: "Initialize genesis files",
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RunE: cmd.run,
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}
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}
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// GenOptions can parse command-line and flag to
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// generate default app_options for the genesis file.
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// This is application-specific
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type GenOptions func(args []string) (json.RawMessage, error)
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// GenerateCoinKey returns the address of a public key,
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// along with the secret phrase to recover the private key.
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// You can give coins to this address and return the recovery
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// phrase to the user to access them.
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func GenerateCoinKey() (crypto.Address, string, error) {
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// construct an in-memory key store
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codec, err := words.LoadCodec("english")
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if err != nil {
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return nil, "", err
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}
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keybase := keys.New(
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dbm.NewMemDB(),
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codec,
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)
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// generate a private key, with recovery phrase
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info, secret, err := keybase.Create("name", "pass", keys.AlgoEd25519)
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if err != nil {
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return nil, "", err
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}
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addr := info.PubKey.Address()
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return addr, secret, nil
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}
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type initCmd struct {
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gen GenOptions
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}
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func (c initCmd) run(cmd *cobra.Command, args []string) error {
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// Run the basic tendermint initialization,
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// set up a default genesis with no app_options
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cfg, err := tcmd.ParseConfig()
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if err != nil {
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return err
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}
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tcmd.InitFilesCmd.Run(cmd, args)
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// no app_options, leave like tendermint
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if c.gen == nil {
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return nil
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}
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// Now, we want to add the custom app_options
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options, err := c.gen(args)
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if err != nil {
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return err
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}
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// And add them to the genesis file
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genFile := cfg.GenesisFile()
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return addGenesisOptions(genFile, options)
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}
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func addGenesisOptions(filename string, options json.RawMessage) error {
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bz, err := ioutil.ReadFile(filename)
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if err != nil {
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return err
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}
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var doc tmtypes.GenesisDoc
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err = json.Unmarshal(bz, &doc)
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if err != nil {
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return err
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}
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doc.AppOptions = options
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out, err := json.MarshalIndent(doc, "", " ")
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if err != nil {
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return err
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}
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return ioutil.WriteFile(filename, out, 0600)
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}
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// GetGenesisJSON returns a new tendermint genesis with Basecoin app_options
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// that grant a large amount of "mycoin" to a single address
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// TODO: A better UX for generating genesis files
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func GetGenesisJSON(pubkey, chainID, denom, addr string, options string) string {
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return fmt.Sprintf(`{
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"app_hash": "",
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"chain_id": "%s",
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"genesis_time": "0001-01-01T00:00:00.000Z",
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"validators": [
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{
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"power": 10,
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"name": "",
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"pub_key": {
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"type": "ed25519",
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"data": "%s"
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}
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}
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],
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"app_options": {
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"accounts": [{
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"address": "%s",
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"coins": [
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{
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"denom": "%s",
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"amount": 9007199254740992
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}
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]
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}],
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"plugin_options": [
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"coin/issuer", {"app": "sigs", "addr": "%s"}%s
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]
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}
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}`, chainID, pubkey, addr, denom, addr, options)
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}
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