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42 lines
845 B
Go
42 lines
845 B
Go
package cli
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import (
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"fmt"
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"strings"
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"github.com/spf13/cobra"
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)
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// NoArgs validate args and returns an error if there are any args
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func NoArgs(cmd *cobra.Command, args []string) error {
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if len(args) == 0 {
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return nil
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}
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if cmd.HasSubCommands() {
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return fmt.Errorf("\n" + strings.TrimRight(cmd.UsageString(), "\n"))
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}
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return fmt.Errorf(
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"\"%s\" accepts no argument(s).\n\nUsage: %s\n\n%s",
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cmd.CommandPath(),
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cmd.UseLine(),
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cmd.Short,
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)
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}
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// RequiresMinArgs returns an error if there is not at least min args
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func RequiresMinArgs(min int) cobra.PositionalArgs {
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return func(cmd *cobra.Command, args []string) error {
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if len(args) >= min {
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return nil
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}
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return fmt.Errorf(
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"\"%s\" requires at least %d argument(s).\n\nUsage: %s\n\n%s",
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cmd.CommandPath(),
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min,
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cmd.UseLine(),
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cmd.Short,
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)
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}
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}
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