fix(services): prevent app name with number (#4249)

* fix(services): prevent app name with number

* changelog

* updates

---------

Co-authored-by: Danilo Pantani <danpantani@gmail.com>

changelog.md

@@ -46,6 +46,7 @@
 - [#4194](https://github.com/ignite/cli/pull/4194) Bump client/v2 to `v2.0.0-beta.2`
 - [#4189](https://github.com/ignite/cli/pull/4189) Deprecate `ignite node` for `ignite connect` app
 - [#4210](https://github.com/ignite/cli/pull/4210) Improve default home wiring
+- [#4249](https://github.com/ignite/cli/pull/4249) Prevent creating a chain with number in the name
 - [#4253](https://github.com/ignite/cli/pull/4253) Bump cosmos-sdk to `v0.50.8`
 
 ### Fixes

ignite/services/scaffolder/init.go

@@ -7,6 +7,7 @@ import (
 	"strings"
 
 	"github.com/ignite/cli/v29/ignite/pkg/cosmosgen"
+	"github.com/ignite/cli/v29/ignite/pkg/errors"
 	"github.com/ignite/cli/v29/ignite/pkg/gomodulepath"
 	"github.com/ignite/cli/v29/ignite/pkg/xgenny"
 	"github.com/ignite/cli/v29/ignite/templates/app"
@@ -28,6 +29,13 @@ func Init(
 		return "", "", err
 	}
 
+	// Check if the module name is valid (no numbers)
+	for _, r := range pathInfo.Package {
+		if r >= '0' && r <= '9' {
+			return "", "", errors.Errorf("invalid app name %s: cannot contain numbers", pathInfo.Package)
+		}
+	}
+
 	// Create a new folder named as the blockchain when a custom path is not specified
 	var appFolder string
 	if root == "" {

integration/app/cmd_app_test.go

@@ -3,6 +3,7 @@
 package app_test
 
 import (
+	"bytes"
 	"os"
 	"path/filepath"
 	"testing"
@@ -52,6 +53,23 @@ func TestGenerateAnAppWithName(t *testing.T) {
 	app.EnsureSteady()
 }
 
+// TestGenerateAnAppWithInvalidName tests scaffolding a new chain using an invalid name.
+func TestGenerateAnAppWithInvalidName(t *testing.T) {
+	buf := new(bytes.Buffer)
+
+	env := envtest.New(t)
+	env.Must(env.Exec("should prevent creating an app with an invalid name",
+		step.NewSteps(step.New(
+			step.Exec(envtest.IgniteApp, "s", "chain", "blog2"),
+			step.Stdout(buf),
+			step.Stderr(buf),
+		)),
+		envtest.ExecShouldError(),
+	))
+
+	require.Contains(t, buf.String(), "Invalid app name blog2: cannot contain numbers")
+}
+
 func TestGenerateAnAppWithNoDefaultModule(t *testing.T) {
 	var (
 		env = envtest.New(t)

integration/chain/cmd_serve_test.go

@@ -16,7 +16,7 @@ import (
 func TestServeWithCustomHome(t *testing.T) {
 	var (
 		env     = envtest.New(t)
-		app     = env.Scaffold("github.com/test/sgblog2")
+		app     = env.Scaffold("github.com/test/sgbloga")
 		servers = app.RandomizeServerPorts()
 	)
 
@@ -36,7 +36,7 @@ func TestServeWithCustomHome(t *testing.T) {
 func TestServeWithConfigHome(t *testing.T) {
 	var (
 		env     = envtest.New(t)
-		app     = env.Scaffold("github.com/test/sgblog3")
+		app     = env.Scaffold("github.com/test/sgblogb")
 		servers = app.RandomizeServerPorts()
 	)
 
@@ -58,7 +58,7 @@ func TestServeWithCustomConfigFile(t *testing.T) {
 
 	var (
 		env = envtest.New(t)
-		app = env.Scaffold("github.com/test/sgblog4")
+		app = env.Scaffold("github.com/test/sgblogc")
 	)
 	// Move config
 	newConfig := "new_config.yml"
@@ -86,7 +86,7 @@ func TestServeWithCustomConfigFile(t *testing.T) {
 func TestServeWithName(t *testing.T) {
 	var (
 		env     = envtest.New(t)
-		app     = env.Scaffold("sgblog5")
+		app     = env.Scaffold("sgblogd")
 		servers = app.RandomizeServerPorts()
 	)
 

integration/ibc/cmd_ibc_test.go

@@ -109,7 +109,7 @@ func TestCreateModuleWithIBC(t *testing.T) {
 func TestCreateIBCPacket(t *testing.T) {
 	var (
 		env = envtest.New(t)
-		app = env.Scaffold("github.com/test/blogibc2")
+		app = env.Scaffold("github.com/test/blogibcb")
 	)
 
 	env.Must(env.Exec("create an IBC module",