Post-porting fixes for v3

app_test.go

@@ -174,10 +174,10 @@ func ExampleApp_Run_commandHelp() {
 	_ = app.Run(os.Args)
 	// Output:
 	// NAME:
-	//    greet describeit [command options] [arguments...]
+	//    greet describeit - use it to see a description
 	//
 	// USAGE:
-	//    greet describeit [arguments...]
+	//    greet describeit [command options] [arguments...]
 	//
 	// DESCRIPTION:
 	//    This is how we describe describeit the function

command.go

@@ -300,9 +300,7 @@ func (c *Command) VisibleFlagCategories() []VisibleFlagCategory {
 	if c.flagCategories == nil {
 		c.flagCategories = newFlagCategories()
 		for _, fl := range c.Flags {
-			if cf, ok := fl.(CategorizableFlag); ok {
-				c.flagCategories.AddFlag(cf.GetCategory(), cf)
-			}
+			c.flagCategories.AddFlag(fl.GetCategory(), fl)
 		}
 	}
 	return c.flagCategories.VisibleCategories()

flag-spec.yaml

@@ -1,7 +1,6 @@
 # NOTE: this file is used by the tool defined in
 # ./cmd/urfave-cli-genflags/main.go which uses the
 # `Spec` type that maps to this file structure.
-
 flag_types:
   bool:
     no_default_text: true

flag_uint64_slice.go

@@ -183,6 +183,15 @@ func (f *Uint64SliceFlag) stringify() string {
 	return stringifySliceFlag(f.Usage, f.Names(), defaultVals)
 }
 
+// RunAction executes flag action if set
+func (f *Uint64SliceFlag) RunAction(c *Context) error {
+	if f.Action != nil {
+		return f.Action(c, c.Uint64Slice(f.Name))
+	}
+
+	return nil
+}
+
 // Uint64Slice looks up the value of a local Uint64SliceFlag, returns
 // nil if not found
 func (cCtx *Context) Uint64Slice(name string) []uint64 {

flag_uint_slice.go

@@ -194,6 +194,15 @@ func (f *UintSliceFlag) stringify() string {
 	return stringifySliceFlag(f.Usage, f.Names(), defaultVals)
 }
 
+// RunAction executes flag action if set
+func (f *UintSliceFlag) RunAction(c *Context) error {
+	if f.Action != nil {
+		return f.Action(c, c.UintSlice(f.Name))
+	}
+
+	return nil
+}
+
 // UintSlice looks up the value of a local UintSliceFlag, returns
 // nil if not found
 func (cCtx *Context) UintSlice(name string) []uint {