Help displays false default values

[eproxus]

Given a option with no default value:

package main

import "github.com/jessevdk/go-flags"

type opts struct {
    Value int `short:"v" description:"The value"`
}

func main() {
    var opts opts
    flags.Parse(&opts)
}

Calling help with that option set will display a false default value:

$ go run main.go -v 7 -h
Usage:
  main [OPTIONS]

Application Options:
  -v=         The value (7)

Help Options:
  -h, --help  Show this help message

This can lead to mistakes where users think there is a default value where there is none.

[jessevdk]

The original reason for this was to cover this case:

opts := struct {
    Value int `short:"v" description:"The value"`
} {
    Value: 5
}

flags.Parse(&opts)

So the initial value would really be the current value. That said, it obviously doesn't work for your case.

[eproxus]

Thanks!