package main

import (
	"gopkg.in/juju/charm.v5"
	"log"
	"os"
)

func main() {
	data, err := charm.ReadBundleData(os.Stdin)
	if err != nil {
		log.Fatal(err)
	}
	if err := data.Verify(func(string) error { return nil }); err != nil {
		for _, err := range err.(*charm.VerificationError).Errors {
			log.Println(err)
		}
	} else {
		log.Printf("ok")
	}
}