Add rules diff verbosity flag (#199)

* add rules diff verbosity flag

* Make the deleted lines -

Signed-off-by: Goutham Veeramachaneni <[email protected]>

Co-authored-by: Justin Mai <[email protected]>
Co-authored-by: Goutham Veeramachaneni <[email protected]>

Author: justinTM

pkg/commands/rules.go

@@ -82,6 +82,9 @@ type RuleCommand struct {
 	Format string
 
 	DisableColor bool
+
+	// Diff Rules Config
+	Verbose bool
 }
 
 // Register rule related commands and flags with the kingpin application
@@ -182,6 +185,7 @@ func (r *RuleCommand) Register(app *kingpin.Application) {
 		"Comma separated list of paths to directories containing rules yaml files. Each file in a directory with a .yml or .yaml suffix will be parsed.",
 	).StringVar(&r.RuleFilesPath)
 	diffRulesCmd.Flag("disable-color", "disable colored output").BoolVar(&r.DisableColor)
+	diffRulesCmd.Flag("verbose", "show diff output with rules changes").BoolVar(&r.Verbose)
 
 	// Sync Command
 	syncRulesCmd.Arg("rule-files", "The rule files to check.").ExistingFilesVar(&r.RuleFilesList)
@@ -489,7 +493,7 @@ func (r *RuleCommand) diffRules(k *kingpin.ParseContext) error {
 	}
 
 	p := printer.New(r.DisableColor)
-	return p.PrintComparisonResult(changes, false)
+	return p.PrintComparisonResult(changes, r.Verbose)
 }
 
 func (r *RuleCommand) syncRules(k *kingpin.ParseContext) error {

pkg/printer/printer.go

@@ -161,7 +161,7 @@ func (p *Printer) PrintComparisonResult(results []rules.NamespaceChange, verbose
 					oldYaml, _ := yaml.Marshal(c.Original)
 					separated = strings.Split(string(oldYaml), "\n")
 					for _, l := range separated {
-						p.Printf("[red]+ %v\n", l)
+						p.Printf("[red]- %v\n", l)
 					}
 				}
 			}