grafana/pkg/build/cmd/argcount_wrapper.go

32 lines
816 B
Go

package main
import "github.com/urfave/cli/v2"
// ArgCountWrapper will cause the action to fail if there were not exactly `num` args provided.
func ArgCountWrapper(num int, action cli.ActionFunc) cli.ActionFunc {
return func(ctx *cli.Context) error {
if ctx.NArg() != num {
if err := cli.ShowSubcommandHelp(ctx); err != nil {
return cli.Exit(err.Error(), 1)
}
return cli.Exit("", 1)
}
return action(ctx)
}
}
// ArgCountWrapper will cause the action to fail if there were more than `num` args provided.
func MaxArgCountWrapper(max int, action cli.ActionFunc) cli.ActionFunc {
return func(ctx *cli.Context) error {
if ctx.NArg() > max {
if err := cli.ShowSubcommandHelp(ctx); err != nil {
return cli.Exit(err.Error(), 1)
}
return cli.Exit("", 1)
}
return action(ctx)
}
}