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a5f31e5dd3
Bumps [github.com/spf13/cobra](https://github.com/spf13/cobra) from 1.5.0 to 1.6.1. - [Release notes](https://github.com/spf13/cobra/releases) - [Commits](https://github.com/spf13/cobra/compare/v1.5.0...v1.6.1) --- updated-dependencies: - dependency-name: github.com/spf13/cobra dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com> Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
132 lines
4 KiB
Go
132 lines
4 KiB
Go
// Copyright 2013-2022 The Cobra Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package cobra
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import (
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"fmt"
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"strings"
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)
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type PositionalArgs func(cmd *Command, args []string) error
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// Legacy arg validation has the following behaviour:
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// - root commands with no subcommands can take arbitrary arguments
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// - root commands with subcommands will do subcommand validity checking
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// - subcommands will always accept arbitrary arguments
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func legacyArgs(cmd *Command, args []string) error {
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// no subcommand, always take args
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if !cmd.HasSubCommands() {
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return nil
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}
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// root command with subcommands, do subcommand checking.
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if !cmd.HasParent() && len(args) > 0 {
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return fmt.Errorf("unknown command %q for %q%s", args[0], cmd.CommandPath(), cmd.findSuggestions(args[0]))
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}
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return nil
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}
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// NoArgs returns an error if any args are included.
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func NoArgs(cmd *Command, args []string) error {
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if len(args) > 0 {
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return fmt.Errorf("unknown command %q for %q", args[0], cmd.CommandPath())
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}
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return nil
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}
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// OnlyValidArgs returns an error if there are any positional args that are not in
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// the `ValidArgs` field of `Command`
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func OnlyValidArgs(cmd *Command, args []string) error {
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if len(cmd.ValidArgs) > 0 {
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// Remove any description that may be included in ValidArgs.
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// A description is following a tab character.
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var validArgs []string
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for _, v := range cmd.ValidArgs {
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validArgs = append(validArgs, strings.Split(v, "\t")[0])
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}
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for _, v := range args {
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if !stringInSlice(v, validArgs) {
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return fmt.Errorf("invalid argument %q for %q%s", v, cmd.CommandPath(), cmd.findSuggestions(args[0]))
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}
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}
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}
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return nil
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}
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// ArbitraryArgs never returns an error.
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func ArbitraryArgs(cmd *Command, args []string) error {
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return nil
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}
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// MinimumNArgs returns an error if there is not at least N args.
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func MinimumNArgs(n int) PositionalArgs {
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return func(cmd *Command, args []string) error {
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if len(args) < n {
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return fmt.Errorf("requires at least %d arg(s), only received %d", n, len(args))
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}
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return nil
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}
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}
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// MaximumNArgs returns an error if there are more than N args.
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func MaximumNArgs(n int) PositionalArgs {
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return func(cmd *Command, args []string) error {
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if len(args) > n {
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return fmt.Errorf("accepts at most %d arg(s), received %d", n, len(args))
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}
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return nil
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}
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}
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// ExactArgs returns an error if there are not exactly n args.
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func ExactArgs(n int) PositionalArgs {
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return func(cmd *Command, args []string) error {
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if len(args) != n {
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return fmt.Errorf("accepts %d arg(s), received %d", n, len(args))
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}
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return nil
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}
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}
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// RangeArgs returns an error if the number of args is not within the expected range.
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func RangeArgs(min int, max int) PositionalArgs {
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return func(cmd *Command, args []string) error {
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if len(args) < min || len(args) > max {
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return fmt.Errorf("accepts between %d and %d arg(s), received %d", min, max, len(args))
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}
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return nil
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}
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}
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// MatchAll allows combining several PositionalArgs to work in concert.
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func MatchAll(pargs ...PositionalArgs) PositionalArgs {
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return func(cmd *Command, args []string) error {
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for _, parg := range pargs {
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if err := parg(cmd, args); err != nil {
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return err
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}
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}
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return nil
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}
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}
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// ExactValidArgs returns an error if there are not exactly N positional args OR
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// there are any positional args that are not in the `ValidArgs` field of `Command`
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//
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// Deprecated: use MatchAll(ExactArgs(n), OnlyValidArgs) instead
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func ExactValidArgs(n int) PositionalArgs {
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return MatchAll(ExactArgs(n), OnlyValidArgs)
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}
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