Рыба проекта. Минимальная функциональность

cmd/synapse-backupper/generate_config.go

@@ -0,0 +1,47 @@
+package main
+
+import (
+	_ "embed"
+	"fmt"
+	"os"
+
+	"github.com/spf13/cobra"
+)
+
+//go:embed resources/config.en.yaml
+var configEnYAML []byte
+
+//go:embed resources/config.ru.yaml
+var configRuYAML []byte
+
+func generateConfigCmd() *cobra.Command {
+	var lang string
+	var output string
+
+	cmd := &cobra.Command{
+		Use:   "generate-config",
+		Short: "Generate a commented example configuration file",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			var tmpl []byte
+			switch lang {
+			case "en":
+				tmpl = configEnYAML
+			case "ru":
+				tmpl = configRuYAML
+			default:
+				return fmt.Errorf("unsupported language: %q (must be \"en\" or \"ru\")", lang)
+			}
+
+			if output != "" {
+				return os.WriteFile(output, tmpl, 0o644)
+			}
+			_, err := cmd.OutOrStdout().Write(tmpl)
+			return err
+		},
+	}
+
+	cmd.Flags().StringVar(&lang, "lang", "en", "Language for comments (en or ru)")
+	cmd.Flags().StringVar(&output, "output", "", "Output file path (empty = stdout)")
+
+	return cmd
+}