go.mod: github.com/spf13/cobra v1.6.1

We were using v1.0.0 of Cobra as newer versions added spf13/viper as dependency,
which came with many indirect dependencies. Cobra v1.6.0 and up no longer depend
on viper, so we can now safely upgrade to the latest version.

full diff: https://github.com/spf13/cobra/compare/v1.0.0...v1.6.1

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

vendor/github.com/spf13/cobra/shell_completions.go

@@ -1,85 +1,98 @@
+// Copyright 2013-2022 The Cobra Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package cobra
 
 import (
 	"github.com/spf13/pflag"
 )
 
-// MarkFlagRequired adds the BashCompOneRequiredFlag annotation to the named flag if it exists,
+// MarkFlagRequired instructs the various shell completion implementations to
+// prioritize the named flag when performing completion,
 // and causes your command to report an error if invoked without the flag.
 func (c *Command) MarkFlagRequired(name string) error {
 	return MarkFlagRequired(c.Flags(), name)
 }
 
-// MarkPersistentFlagRequired adds the BashCompOneRequiredFlag annotation to the named persistent flag if it exists,
+// MarkPersistentFlagRequired instructs the various shell completion implementations to
+// prioritize the named persistent flag when performing completion,
 // and causes your command to report an error if invoked without the flag.
 func (c *Command) MarkPersistentFlagRequired(name string) error {
 	return MarkFlagRequired(c.PersistentFlags(), name)
 }
 
-// MarkFlagRequired adds the BashCompOneRequiredFlag annotation to the named flag if it exists,
+// MarkFlagRequired instructs the various shell completion implementations to
+// prioritize the named flag when performing completion,
 // and causes your command to report an error if invoked without the flag.
 func MarkFlagRequired(flags *pflag.FlagSet, name string) error {
 	return flags.SetAnnotation(name, BashCompOneRequiredFlag, []string{"true"})
 }
 
-// MarkFlagFilename adds the BashCompFilenameExt annotation to the named flag, if it exists.
-// Generated bash autocompletion will select filenames for the flag, limiting to named extensions if provided.
+// MarkFlagFilename instructs the various shell completion implementations to
+// limit completions for the named flag to the specified file extensions.
 func (c *Command) MarkFlagFilename(name string, extensions ...string) error {
 	return MarkFlagFilename(c.Flags(), name, extensions...)
 }
 
 // MarkFlagCustom adds the BashCompCustom annotation to the named flag, if it exists.
-// Generated bash autocompletion will call the bash function f for the flag.
+// The bash completion script will call the bash function f for the flag.
+//
+// This will only work for bash completion.
+// It is recommended to instead use c.RegisterFlagCompletionFunc(...) which allows
+// to register a Go function which will work across all shells.
 func (c *Command) MarkFlagCustom(name string, f string) error {
 	return MarkFlagCustom(c.Flags(), name, f)
 }
 
 // MarkPersistentFlagFilename instructs the various shell completion
-// implementations to limit completions for this persistent flag to the
-// specified extensions (patterns).
-//
-// Shell Completion compatibility matrix: bash, zsh
+// implementations to limit completions for the named persistent flag to the
+// specified file extensions.
 func (c *Command) MarkPersistentFlagFilename(name string, extensions ...string) error {
 	return MarkFlagFilename(c.PersistentFlags(), name, extensions...)
 }
 
 // MarkFlagFilename instructs the various shell completion implementations to
-// limit completions for this flag to the specified extensions (patterns).
-//
-// Shell Completion compatibility matrix: bash, zsh
+// limit completions for the named flag to the specified file extensions.
 func MarkFlagFilename(flags *pflag.FlagSet, name string, extensions ...string) error {
 	return flags.SetAnnotation(name, BashCompFilenameExt, extensions)
 }
 
-// MarkFlagCustom instructs the various shell completion implementations to
-// limit completions for this flag to the specified extensions (patterns).
+// MarkFlagCustom adds the BashCompCustom annotation to the named flag, if it exists.
+// The bash completion script will call the bash function f for the flag.
 //
-// Shell Completion compatibility matrix: bash, zsh
+// This will only work for bash completion.
+// It is recommended to instead use c.RegisterFlagCompletionFunc(...) which allows
+// to register a Go function which will work across all shells.
 func MarkFlagCustom(flags *pflag.FlagSet, name string, f string) error {
 	return flags.SetAnnotation(name, BashCompCustom, []string{f})
 }
 
 // MarkFlagDirname instructs the various shell completion implementations to
-// complete only directories with this named flag.
-//
-// Shell Completion compatibility matrix: zsh
+// limit completions for the named flag to directory names.
 func (c *Command) MarkFlagDirname(name string) error {
 	return MarkFlagDirname(c.Flags(), name)
 }
 
 // MarkPersistentFlagDirname instructs the various shell completion
-// implementations to complete only directories with this persistent named flag.
-//
-// Shell Completion compatibility matrix: zsh
+// implementations to limit completions for the named persistent flag to
+// directory names.
 func (c *Command) MarkPersistentFlagDirname(name string) error {
 	return MarkFlagDirname(c.PersistentFlags(), name)
 }
 
 // MarkFlagDirname instructs the various shell completion implementations to
-// complete only directories with this specified flag.
-//
-// Shell Completion compatibility matrix: zsh
+// limit completions for the named flag to directory names.
 func MarkFlagDirname(flags *pflag.FlagSet, name string) error {
-	zshPattern := "-(/)"
-	return flags.SetAnnotation(name, zshCompDirname, []string{zshPattern})
+	return flags.SetAnnotation(name, BashCompSubdirsInDir, []string{})
 }