Add arg to set cosmos client home (#48)

cmd/node/appchain.go

@@ -3,6 +3,7 @@ package main
 import (
 	"context"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"math"
 	"os"
@@ -24,18 +25,21 @@ import (
 func NewAppChain(config AppChainConfig, log zerolog.Logger) (*AppChain, error) {
 	ctx := context.Background()
 	config.SubmitTx = true
+	userHomeDir, _ := os.UserHomeDir()
+	cosmosClientHome := filepath.Join(userHomeDir, ".uptd")
+	if config.CosmosHomeDir != "" {
+		cosmosClientHome = config.CosmosHomeDir
+	}
 
-	userHomeDir, err := os.UserHomeDir()
-	if err != nil {
-		log.Warn().Err(err).Msg("could not get home directory for app chain")
+	// Check that the given home folder is exist
+	if _, err := os.Stat(cosmosClientHome); errors.Is(err, os.ErrNotExist) {
+		log.Warn().Err(err).Msg("could not get home directory for cosmos client")
 		config.SubmitTx = false
 		return nil, err
 	}
 
-	DefaultNodeHome := filepath.Join(userHomeDir, ".uptd")
-
 	// create a cosmos client instance
-	client, err := cosmosclient.New(ctx, cosmosclient.WithNodeAddress(config.NodeRPCAddress), cosmosclient.WithAddressPrefix(config.AddressPrefix), cosmosclient.WithHome(DefaultNodeHome))
+	client, err := cosmosclient.New(ctx, cosmosclient.WithNodeAddress(config.NodeRPCAddress), cosmosclient.WithAddressPrefix(config.AddressPrefix), cosmosclient.WithHome(cosmosClientHome))
 	if err != nil {
 		log.Warn().Err(err).Msg("unable to create an allora blockchain client")
 		config.SubmitTx = false

cmd/node/flags.go

@@ -55,6 +55,7 @@ func parseFlags() *alloraCfg {
 	pflag.Int64Var(&cfg.MemoryMaxKB, "memory-limit", 0, "memory limit (kB) for Blockless Functions")
 
 	// Cosmos L1 configuration
+	pflag.StringVarP(&cfg.AppChainConfig.CosmosHomeDir, "allora-chain-home-dir", "", "", "The Home folder of the client, use the user home if not set")
 	pflag.StringVarP(&cfg.AppChainConfig.AddressKeyName, "allora-chain-key-name", "", "", "The name of a key stored in the Allora Blockchain Wallet")
 	pflag.StringVarP(&cfg.AppChainConfig.AddressRestoreMnemonic, "allora-chain-restore-mnemonic", "", "", "The restore mnemonic for an Allora Blockchain Wallet")
 	pflag.StringVarP(&cfg.AppChainConfig.AddressAccountPassphrase, "allora-chain-account-password", "", "", "The password for an Allora Blockchain Wallet Key")

cmd/node/types.go

@@ -31,7 +31,7 @@ type AppChainConfig struct {
 	AddressKeyName           string // load a address by key from the keystore
 	AddressRestoreMnemonic   string
 	AddressAccountPassphrase string
-	HomeDirectory            string // home directory for the cosmos keystore
+	CosmosHomeDir            string // home directory for the cosmos keystore
 	StringSeperator          string // string seperator used for key identifiers in cosmos
 	LibP2PKey                string // the libp2p key used to sign offchain communications
 	SubmitTx                 bool   // do we need to commit these to the chain, might be a reason not to