refactor(chain): make config optional for init phase

changelog.md

@@ -40,6 +40,7 @@
 - [#3084](https://github.com/ignite/cli/pull/3084) Add Ignite Chain documentation.
 - [#3109](https://github.com/ignite/cli/pull/3109) Refactor scaffolding for proto files to not rely on placeholders.
 - [#3106](https://github.com/ignite/cli/pull/3106) Add zoom image plugin.
+- [#3183](https://github.com/ignite/cli/pull/3183/) Make config optional for init phase.
 - [#3224](https://github.com/ignite/cli/pull/3224) Remove grpc_* prefix from query files in scaffolded chains
 - [#3229](https://github.com/ignite/cli/pull/3229) Rename `campaign` to `project` in ignite network set of commands
 - [#3244](https://github.com/ignite/cli/pull/3244) updated actions.yml for resolving deprecation message

ignite/cmd/chain_init.go

@@ -122,7 +122,7 @@ func chainInitHandler(cmd *cobra.Command, _ []string) error {
 		return err
 	}
 
-	if err := c.Init(cmd.Context(), true); err != nil {
+	if err := c.Init(cmd.Context(), chain.InitArgsAll); err != nil {
 		return err
 	}
 

ignite/cmd/network_chain_init.go

@@ -7,6 +7,7 @@ import (
 	"github.com/manifoldco/promptui"
 	"github.com/spf13/cobra"
 
+	"github.com/ignite/cli/ignite/pkg/chaincmd"
 	"github.com/ignite/cli/ignite/pkg/cliui"
 	"github.com/ignite/cli/ignite/pkg/cliui/cliquiz"
 	"github.com/ignite/cli/ignite/pkg/cliui/icons"
@@ -141,7 +142,9 @@ func networkChainInitHandler(cmd *cobra.Command, args []string) error {
 		return err
 	}
 
-	var networkOptions []networkchain.Option
+	networkOptions := []networkchain.Option{
+		networkchain.WithKeyringBackend(chaincmd.KeyringBackendTest),
+	}
 
 	if flagGetCheckDependencies(cmd) {
 		networkOptions = append(networkOptions, networkchain.CheckDependencies())

ignite/cmd/network_chain_prepare.go

@@ -7,6 +7,7 @@ import (
 	"github.com/spf13/cobra"
 
 	"github.com/ignite/cli/ignite/pkg/cache"
+	"github.com/ignite/cli/ignite/pkg/chaincmd"
 	"github.com/ignite/cli/ignite/pkg/cliui"
 	"github.com/ignite/cli/ignite/pkg/cliui/colors"
 	"github.com/ignite/cli/ignite/pkg/cliui/icons"
@@ -98,7 +99,9 @@ func networkChainPrepareHandler(cmd *cobra.Command, args []string) error {
 		return fmt.Errorf("chain %d launch has not been triggered yet. use --force to prepare anyway", launchID)
 	}
 
-	var networkOptions []networkchain.Option
+	networkOptions := []networkchain.Option{
+		networkchain.WithKeyringBackend(chaincmd.KeyringBackendTest),
+	}
 
 	if flagGetCheckDependencies(cmd) {
 		networkOptions = append(networkOptions, networkchain.CheckDependencies())

ignite/services/chain/chain.go

@@ -9,6 +9,7 @@ import (
 	"github.com/tendermint/spn/pkg/chainid"
 
 	chainconfig "github.com/ignite/cli/ignite/config/chain"
+	chainconfigv1 "github.com/ignite/cli/ignite/config/chain/v1"
 	"github.com/ignite/cli/ignite/pkg/chaincmd"
 	chaincmdrunner "github.com/ignite/cli/ignite/pkg/chaincmd/runner"
 	"github.com/ignite/cli/ignite/pkg/cliui/colors"
@@ -177,25 +178,6 @@ func (c *Chain) appVersion() (v version, err error) {
 	return v, nil
 }
 
-// RPCPublicAddress points to the public address of Tendermint RPC, this is shared by
-// other chains for relayer related actions.
-func (c *Chain) RPCPublicAddress() (string, error) {
-	rpcAddress := os.Getenv("RPC_ADDRESS")
-	if rpcAddress == "" {
-		conf, err := c.Config()
-		if err != nil {
-			return "", err
-		}
-		validator := conf.Validators[0]
-		servers, err := validator.GetServers()
-		if err != nil {
-			return "", err
-		}
-		rpcAddress = servers.RPC.Address
-	}
-	return rpcAddress, nil
-}
-
 // ConfigPath returns the config path of the chain
 // Empty string means that the chain has no defined config
 func (c *Chain) ConfigPath() string {
@@ -306,9 +288,11 @@ func (c *Chain) DefaultHome() (string, error) {
 	if err != nil {
 		return "", err
 	}
-	validator := config.Validators[0]
-	if validator.Home != "" {
-		return validator.Home, nil
+	if len(config.Validators) > 0 {
+		validator := config.Validators[0]
+		if validator.Home != "" {
+			return validator.Home, nil
+		}
 	}
 
 	return c.appHome(), nil
@@ -381,11 +365,14 @@ func (c *Chain) KeyringBackend() (chaincmd.KeyringBackend, error) {
 	}
 
 	// 2nd.
-	validator := config.Validators[0]
-	if validator.Client != nil {
-		if v, ok := validator.Client["keyring-backend"]; ok {
-			if backend, ok := v.(string); ok {
-				return chaincmd.KeyringBackendFromString(backend)
+	if len(config.Validators) > 0 {
+		validator := config.Validators[0]
+
+		if validator.Client != nil {
+			if backend, ok := validator.Client["keyring-backend"]; ok {
+				if backendStr, ok := backend.(string); ok {
+					return chaincmd.KeyringBackendFromString(backendStr)
+				}
 			}
 		}
 	}
@@ -442,10 +429,13 @@ func (c *Chain) Commands(ctx context.Context) (chaincmdrunner.Runner, error) {
 		return chaincmdrunner.Runner{}, err
 	}
 
-	validator := config.Validators[0]
-	servers, err := validator.GetServers()
-	if err != nil {
-		return chaincmdrunner.Runner{}, err
+	servers := chainconfigv1.DefaultServers()
+	if len(config.Validators) > 0 {
+		validator := config.Validators[0]
+		servers, err = validator.GetServers()
+		if err != nil {
+			return chaincmdrunner.Runner{}, err
+		}
 	}
 
 	nodeAddr, err := xurl.TCP(servers.RPC.Address)

ignite/services/chain/init.go

@@ -15,39 +15,62 @@ import (
 	"github.com/ignite/cli/ignite/pkg/events"
 )
 
+type (
+	// InitArgs represents argument to add additional initialization for the chain
+	// InitAccounts initializes chain accounts from the Ignite config
+	// InitConfiguration initializes node configuration from the Ignite config
+	// InitGenesis initializes genesis state for the chain from Ignite config
+	InitArgs struct {
+		InitAccounts      bool
+		InitConfiguration bool
+		InitGenesis       bool
+	}
+)
+
 const (
 	moniker = "mynode"
 )
 
-// Init initializes the chain and applies all optional configurations.
-func (c *Chain) Init(ctx context.Context, initAccounts bool) error {
-	conf, err := c.Config()
-	if err != nil {
-		return &CannotBuildAppError{err}
+var (
+	// InitArgsAll performs all initialization for the chain
+	InitArgsAll = InitArgs{
+		InitAccounts:      true,
+		InitConfiguration: true,
+		InitGenesis:       true,
 	}
 
-	if err := c.InitChain(ctx); err != nil {
+	// InitArgsNone performs minimal initialization for the chain by only initializating a node
+	InitArgsNone = InitArgs{
+		InitAccounts:      false,
+		InitConfiguration: false,
+		InitGenesis:       false,
+	}
+)
+
+// Init initializes the chain
+func (c *Chain) Init(ctx context.Context, args InitArgs) error {
+	if err := c.InitChain(ctx, args.InitConfiguration, args.InitGenesis); err != nil {
 		return err
 	}
 
-	if initAccounts {
+	if args.InitAccounts {
+		conf, err := c.Config()
+		if err != nil {
+			return &CannotBuildAppError{err}
+		}
+
 		return c.InitAccounts(ctx, conf)
 	}
 	return nil
 }
 
 // InitChain initializes the chain.
-func (c *Chain) InitChain(ctx context.Context) error {
+func (c *Chain) InitChain(ctx context.Context, initConfiguration, initGenesis bool) error {
 	chainID, err := c.ID()
 	if err != nil {
 		return err
 	}
 
-	conf, err := c.Config()
-	if err != nil {
-		return err
-	}
-
 	// cleanup persistent data from previous `serve`.
 	home, err := c.Home()
 	if err != nil {
@@ -67,19 +90,31 @@ func (c *Chain) InitChain(ctx context.Context) error {
 		return err
 	}
 
-	// ovewrite app config files with the values defined in Ignite's config file
-	if err := c.Configure(home, conf); err != nil {
-		return err
+	var conf *chainconfig.Config
+	if initConfiguration || initGenesis {
+		conf, err = c.Config()
+		if err != nil {
+			return err
+		}
 	}
 
-	// make sure that chain id given during chain.New() has the most priority.
-	if conf.Genesis != nil {
-		conf.Genesis["chain_id"] = chainID
+	// ovewrite app config files with the values defined in Ignite's config file
+	if initConfiguration {
+		if err := c.Configure(home, conf); err != nil {
+			return err
+		}
 	}
 
-	// update genesis file with the genesis values defined in the config
-	if err := c.UpdateGenesisFile(conf.Genesis); err != nil {
-		return err
+	if initGenesis {
+		// make sure that chain id given during chain.New() has the most priority.
+		if conf.Genesis != nil {
+			conf.Genesis["chain_id"] = chainID
+		}
+
+		// update genesis file with the genesis values defined in the config
+		if err := c.UpdateGenesisFile(conf.Genesis); err != nil {
+			return err
+		}
 	}
 
 	return nil

ignite/services/chain/serve.go

@@ -401,7 +401,7 @@ func (c *Chain) serve(
 	if initApp {
 		c.ev.Send("Initializing the app...", events.ProgressUpdate())
 
-		if err := c.Init(ctx, true); err != nil {
+		if err := c.Init(ctx, InitArgsAll); err != nil {
 			return err
 		}
 	} else if appModified {

ignite/services/network/networkchain/init.go

@@ -11,6 +11,7 @@ import (
 	"github.com/ignite/cli/ignite/pkg/cache"
 	cosmosgenesis "github.com/ignite/cli/ignite/pkg/cosmosutil/genesis"
 	"github.com/ignite/cli/ignite/pkg/events"
+	"github.com/ignite/cli/ignite/services/chain"
 )
 
 // Init initializes blockchain by building the binaries and running the init command and
@@ -33,7 +34,7 @@ func (c *Chain) Init(ctx context.Context, cacheStorage cache.Storage) error {
 
 	c.ev.Send("Initializing the blockchain", events.ProgressStart())
 
-	if err = c.chain.Init(ctx, false); err != nil {
+	if err = c.chain.Init(ctx, chain.InitArgsNone); err != nil {
 		return err
 	}
 

ignite/services/network/networkchain/networkchain.go

@@ -303,7 +303,7 @@ func (c Chain) CheckConfigVersion() error {
 // Build builds chain sources, also checks if source was already built
 func (c *Chain) Build(ctx context.Context, cacheStorage cache.Storage) (binaryName string, err error) {
 	// Check that the config version is the latest before building the binary
-	if err = c.CheckConfigVersion(); err != nil {
+	if err = c.CheckConfigVersion(); err != nil && err != chainconfig.ErrConfigNotFound {
 		return
 	}