Merge pull request #1869 from dearchap/issue_1860_v3

Fix:(issue_1860) Remove hidden flags from flag categories

Author: dearchap

category.go

@@ -105,7 +105,11 @@ func newFlagCategoriesFromFlags(fs []Flag) FlagCategories {
 
 	for _, fl := range fs {
 		if cf, ok := fl.(CategorizableFlag); ok {
-			if cat := cf.GetCategory(); cat != "" {
+			visible := false
+			if vf, ok := fl.(VisibleFlag); ok {
+				visible = vf.IsVisible()
+			}
+			if cat := cf.GetCategory(); cat != "" && visible {
 				fc.AddFlag(cat, fl)
 				categorized = true
 			}
@@ -115,7 +119,11 @@ func newFlagCategoriesFromFlags(fs []Flag) FlagCategories {
 	if categorized {
 		for _, fl := range fs {
 			if cf, ok := fl.(CategorizableFlag); ok {
-				if cf.GetCategory() == "" {
+				visible := false
+				if vf, ok := fl.(VisibleFlag); ok {
+					visible = vf.IsVisible()
+				}
+				if cf.GetCategory() == "" && visible {
 					fc.AddFlag("", fl)
 				}
 			}

command_test.go

@@ -518,11 +518,20 @@ func TestCommand_VisibleFlagCategories(t *testing.T) {
 			&StringFlag{
 				Name: "strd", // no category set
 			},
+			&StringFlag{
+				Name:   "strd1", // no category set and also hidden
+				Hidden: true,
+			},
 			&IntFlag{
 				Name:     "intd",
 				Aliases:  []string{"altd1", "altd2"},
 				Category: "cat1",
 			},
+			&StringFlag{
+				Name:     "sfd",
+				Category: "cat2", // category set and hidden
+				Hidden:   true,
+			},
 		},
 		MutuallyExclusiveFlags: []MutuallyExclusiveFlags{{
 			Category: "cat2",