refactor: centralise recipe validation

cli/internal/validate.go

@@ -11,8 +11,8 @@ import (
 	"github.com/urfave/cli/v2"
 )
 
-// ValidateRecipeArg ensures the recipe arg is valid.
-func ValidateRecipeArg(c *cli.Context) string {
+// ValidateRecipe ensures the recipe arg is valid.
+func ValidateRecipe(c *cli.Context) string {
 	recipeName := c.Args().First()
 
 	if recipeName == "" {
@@ -21,6 +21,7 @@ func ValidateRecipeArg(c *cli.Context) string {
 
 	if err := recipe.EnsureExists(recipeName); err != nil {
 		logrus.Fatal(err)
+		os.Exit(1)
 	}
 
 	return recipeName