laconicd-deprecated/client/config.go
Helder Moreira 99112e1cbd
init: add random chain-id generator (#797)
* init: add random chain-id generator

* Update types/chain_id.go

Co-authored-by: Federico Kunze <31522760+fedekunze@users.noreply.github.com>
Co-authored-by: Alessio Treglia <alessio@tendermint.com>
2021-02-26 15:50:22 +00:00

84 lines
2.2 KiB
Go

package client
import (
"fmt"
"os"
"path"
"github.com/spf13/cobra"
"github.com/spf13/viper"
"github.com/tendermint/tendermint/libs/cli"
"github.com/cosmos/cosmos-sdk/client/flags"
ethermint "github.com/cosmos/ethermint/types"
)
// InitConfig adds the chain-id, encoding and output flags to the persistent flag set.
func InitConfig(cmd *cobra.Command) error {
home, err := cmd.PersistentFlags().GetString(cli.HomeFlag)
if err != nil {
return err
}
configFile := path.Join(home, "config", "config.toml")
if _, err := os.Stat(configFile); err == nil {
viper.SetConfigFile(configFile)
if err := viper.ReadInConfig(); err != nil {
return err
}
}
if err := viper.BindPFlag(flags.FlagChainID, cmd.PersistentFlags().Lookup(flags.FlagChainID)); err != nil {
return err
}
if err := viper.BindPFlag(cli.EncodingFlag, cmd.PersistentFlags().Lookup(cli.EncodingFlag)); err != nil {
return err
}
return viper.BindPFlag(cli.OutputFlag, cmd.PersistentFlags().Lookup(cli.OutputFlag))
}
// ValidateChainID wraps a cobra command with a RunE function with base 10 integer chain-id verification.
func ValidateChainID(baseCmd *cobra.Command) *cobra.Command {
// Copy base run command to be used after chain verification
baseRunE := baseCmd.RunE
// Function to replace command's RunE function
validateFn := func(cmd *cobra.Command, args []string) error {
chainID := viper.GetString(flags.FlagChainID)
if !ethermint.IsValidChainID(chainID) {
return fmt.Errorf("invalid chain-id format: %s", chainID)
}
return baseRunE(cmd, args)
}
baseCmd.RunE = validateFn
return baseCmd
}
// GenerateChainID wraps a cobra command with a RunE function with base 10 integer chain-id random generation
// when a chain-id is not provided.
func GenerateChainID(baseCmd *cobra.Command) *cobra.Command {
// Copy base run command to be used after chain verification
baseRunE := baseCmd.RunE
// Function to replace command's RunE function
generateFn := func(cmd *cobra.Command, args []string) error {
chainID := viper.GetString(flags.FlagChainID)
if chainID == "" {
viper.Set(flags.FlagChainID, ethermint.GenerateRandomChainID())
}
return baseRunE(cmd, args)
}
baseCmd.RunE = generateFn
return baseCmd
}