global verbose flag.

helpers.go

@@ -32,11 +32,11 @@ const (
 	LINE_PROCESSING_ERROR = iota
 )
 
-var log = func(msg string, args ...any) {
-	fmt.Fprintf(color.Error, msg, args...)
-}
-
-var stdout = fmt.Println
+var (
+	log        = func(msg string, args ...any) { fmt.Fprintf(color.Error, msg, args...) }
+	logverbose = func(msg string, args ...any) {} // by default do nothing
+	stdout     = fmt.Println
+)
 
 func isPiped() bool {
 	stat, _ := os.Stdin.Stat()

main.go

@@ -63,6 +63,19 @@ var app = &cli.Command{
 				return nil
 			},
 		},
+		&cli.BoolFlag{
+			Name:       "verbose",
+			Usage:      "print more stuff than normally",
+			Aliases:    []string{"v"},
+			Persistent: true,
+			Action: func(ctx context.Context, c *cli.Command, b bool) error {
+				v := c.Count("verbose")
+				if v >= 1 {
+					logverbose = log
+				}
+				return nil
+			},
+		},
 	},
 	Before: func(ctx context.Context, c *cli.Command) error {
 		configPath := c.String("config-path")