Is there an easy way to toggle the Required attribute of a cli.Flag ?

[zhiqiangxu]

Now I have to create separate cli.Flag flag instances for Required and Optional, which is quite tedious:

// HeightFlag ...
var HeightFlag = cli.IntFlag{
	Name:     "height",
	Usage:    "specify height",
	Required: true,
}

// OptionalHeightFlag ...
var OptionalHeightFlag = cli.IntFlag{
	Name:  "height",
	Usage: "specify optional height",
}

[Necoro]

What about

OptionalHeightFlag := HeightFlag
OptionalHeightFlag.Required = False

[zhiqiangxu]

What about

OptionalHeightFlag := HeightFlag
OptionalHeightFlag.Required = False

It still requires 2 variables, if there is a method like ToggleRequired(), then only 1 is enough.

[dearchap]

Interface cannot be update to include these functions at this point. Please consider using v3x