mirror of https://github.com/docker/cli.git
97 lines
2.2 KiB
Go
97 lines
2.2 KiB
Go
package cli
|
|
|
|
import (
|
|
"fmt"
|
|
"strings"
|
|
|
|
"github.com/spf13/cobra"
|
|
)
|
|
|
|
// NoArgs validate args and returns an error if there are any args
|
|
func NoArgs(cmd *cobra.Command, args []string) error {
|
|
if len(args) == 0 {
|
|
return nil
|
|
}
|
|
|
|
if cmd.HasSubCommands() {
|
|
return fmt.Errorf("\n" + strings.TrimRight(cmd.UsageString(), "\n"))
|
|
}
|
|
|
|
return fmt.Errorf(
|
|
"\"%s\" accepts no argument(s).\nSee '%s --help'.\n\nUsage: %s\n\n%s",
|
|
cmd.CommandPath(),
|
|
cmd.CommandPath(),
|
|
cmd.UseLine(),
|
|
cmd.Short,
|
|
)
|
|
}
|
|
|
|
// RequiresMinArgs returns an error if there is not at least min args
|
|
func RequiresMinArgs(min int) cobra.PositionalArgs {
|
|
return func(cmd *cobra.Command, args []string) error {
|
|
if len(args) >= min {
|
|
return nil
|
|
}
|
|
return fmt.Errorf(
|
|
"\"%s\" requires at least %d argument(s).\nSee '%s --help'.\n\nUsage: %s\n\n%s",
|
|
cmd.CommandPath(),
|
|
min,
|
|
cmd.CommandPath(),
|
|
cmd.UseLine(),
|
|
cmd.Short,
|
|
)
|
|
}
|
|
}
|
|
|
|
// RequiresMaxArgs returns an error if there is not at most max args
|
|
func RequiresMaxArgs(max int) cobra.PositionalArgs {
|
|
return func(cmd *cobra.Command, args []string) error {
|
|
if len(args) <= max {
|
|
return nil
|
|
}
|
|
return fmt.Errorf(
|
|
"\"%s\" requires at most %d argument(s).\nSee '%s --help'.\n\nUsage: %s\n\n%s",
|
|
cmd.CommandPath(),
|
|
max,
|
|
cmd.CommandPath(),
|
|
cmd.UseLine(),
|
|
cmd.Short,
|
|
)
|
|
}
|
|
}
|
|
|
|
// RequiresRangeArgs returns an error if there is not at least min args and at most max args
|
|
func RequiresRangeArgs(min int, max int) cobra.PositionalArgs {
|
|
return func(cmd *cobra.Command, args []string) error {
|
|
if len(args) >= min && len(args) <= max {
|
|
return nil
|
|
}
|
|
return fmt.Errorf(
|
|
"\"%s\" requires at least %d and at most %d argument(s).\nSee '%s --help'.\n\nUsage: %s\n\n%s",
|
|
cmd.CommandPath(),
|
|
min,
|
|
max,
|
|
cmd.CommandPath(),
|
|
cmd.UseLine(),
|
|
cmd.Short,
|
|
)
|
|
}
|
|
}
|
|
|
|
// ExactArgs returns an error if there is not the exact number of args
|
|
func ExactArgs(number int) cobra.PositionalArgs {
|
|
return func(cmd *cobra.Command, args []string) error {
|
|
if len(args) == number {
|
|
return nil
|
|
}
|
|
return fmt.Errorf(
|
|
"\"%s\" requires exactly %d argument(s).\nSee '%s --help'.\n\nUsage: %s\n\n%s",
|
|
cmd.CommandPath(),
|
|
number,
|
|
cmd.CommandPath(),
|
|
cmd.UseLine(),
|
|
cmd.Short,
|
|
)
|
|
}
|
|
}
|